Merge branch 'develop' into feature/Tags

.github/ISSUE_TEMPLATE/bug_report.md

@@ -24,6 +24,7 @@ A clear and concise description of what you expected to happen.
  - Created with: [e.g Windows KeePass 2.42]
  - Version: [e.g. 2]
  - Location: [e.g. Remote file retrieved with GDrive app]
+ - File provider (`content://` URI): [e.g. `content://com.google.android.apps.docs.storage/5`]
  - Size: [e.g. 150Mo]
  - Contains attachment: [e.g. Yes]
 

CHANGELOG

@@ -1,7 +1,33 @@
+KeePassDX(3.2.0)
+ * Manage data merge #840 #977
+ * Manage Tags #633
+ * Inherit colors and icon from template #1213 #1130
+ * Setting to keep the screen on when watching the entry #1119
+ * Add path in quick search
+ * Small fixes
+
 KeePassDX(3.1.0)
+ * Add breadcrumb
+ * Add path in search results #1148
+ * Add group info dialog #1177
+ * Manage colors #64 #913
+ * Fix UI in Android 8 #509
+ * Upgrade libs and SDK to 31 #833
+ * Fix parser of database v1 #1201
+ * Stop asking WRITE_EXTERNAL_STORAGE permission
+
+KeePassDX(3.0.4)
+ * Fix autofill inline bugs #1173 #1165
+ * Small UI change
+
+KeePassDX(3.0.3)
  * Change default Argon2 parameters #1098
  * Add & edit custom icon name #976
- * Manage Tags #633
+ * Fix templates #1128 #1133 #1138
+ * Update Autofill compatibility list #725 #1154
+ * Improve fingerprint usage #1137 #1145
+ * Change backup configuration #1144
+ * Add lock button in database notification
 
 KeePassDX(3.0.2)
  * Samsung DeX mode #1114 #245 (Thx @chenxiaolong)

README.md

@@ -15,6 +15,7 @@
  - Material design with **themes**.
  - **Auto-Fill** and Integration.
  - Field filling **keyboard**.
+ - Dynamic **templates** 
  - **History** of each entry.
  - Precise management of **settings**.
  - Code written in **native languages** *(Kotlin / Java / JNI / C)*.
@@ -71,7 +72,7 @@ Other questions? You can read the [FAQ](https://github.com/Kunzisoft/KeePassDX/w
 
 ## License
 
-  Copyright © 2020 Jeremy Jamet / [Kunzisoft](https://www.kunzisoft.com).
+  Copyright © 2022 Jeremy Jamet / [Kunzisoft](https://www.kunzisoft.com).
 
   This file is part of KeePassDX.
 

app/build.gradle

@@ -3,16 +3,16 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
 
 android {
-    compileSdkVersion 30
-    buildToolsVersion "30.0.3"
+    compileSdkVersion 31
+    buildToolsVersion "31.0.0"
     ndkVersion "21.4.7075529"
 
     defaultConfig {
         applicationId "com.kunzisoft.keepass"
         minSdkVersion 15
-        targetSdkVersion 30
-        versionCode = 90
-        versionName = "3.1.0"
+        targetSdkVersion 31
+        versionCode = 93
+        versionName = "3.2.0"
         multiDexEnabled true
 
         testApplicationId = "com.kunzisoft.keepass.tests"
@@ -99,22 +99,22 @@ android {
     }
 }
 
-def room_version = "2.2.6"
+def room_version = "2.4.1"
 
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation "androidx.appcompat:appcompat:$android_appcompat_version"
     implementation 'androidx.preference:preference-ktx:1.1.1'
     implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
-    implementation 'androidx.viewpager2:viewpager2:1.1.0-alpha01'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    implementation 'androidx.viewpager2:viewpager2:1.1.0-beta01'
     implementation 'androidx.documentfile:documentfile:1.0.1'
     implementation 'androidx.biometric:biometric:1.1.0'
+    implementation 'androidx.media:media:1.4.3'
     // Lifecycle - LiveData - ViewModel - Coroutines
-    implementation "androidx.core:core-ktx:1.3.2"
-    implementation 'androidx.fragment:fragment-ktx:1.2.5'
-    // WARNING: Don't upgrade because slowdown https://github.com/Kunzisoft/KeePassDX/issues/923
-    implementation 'com.google.android.material:material:1.1.0'
+    implementation "androidx.core:core-ktx:$android_core_version"
+    implementation 'androidx.fragment:fragment-ktx:1.4.0'
+    implementation "com.google.android.material:material:$android_material_version"
     // Token auto complete
     implementation "com.splitwise:tokenautocomplete:4.0.0-beta04"
     // Database
@@ -123,11 +123,11 @@ dependencies {
     // Autofill
     implementation "androidx.autofill:autofill:1.1.0"
     // Time
-    implementation 'joda-time:joda-time:2.10.6'
+    implementation 'joda-time:joda-time:2.10.13'
     // Color
-    implementation 'com.github.Kunzisoft:AndroidClearChroma:2.4'
+    implementation 'com.github.Kunzisoft:AndroidClearChroma:2.6'
     // Education
-    implementation 'com.getkeepsafe.taptargetview:taptargetview:1.13.0'
+    implementation 'com.getkeepsafe.taptargetview:taptargetview:1.13.3'
     // Apache Commons
     implementation 'commons-io:commons-io:2.8.0'
     implementation 'commons-codec:commons-codec:1.15'
@@ -138,6 +138,6 @@ dependencies {
     implementation project(path: ':icon-pack-material')
 
     // Tests
-    androidTestImplementation 'androidx.test:runner:1.3.0'
-    androidTestImplementation 'androidx.test:rules:1.3.0'
+    androidTestImplementation "androidx.test:runner:$android_test_version"
+    androidTestImplementation "androidx.test:rules:$android_test_version"
 }

app/src/main/AndroidManifest.xml

@@ -10,15 +10,12 @@
       android:anyDensity="true" />
     <uses-permission
         android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission
+        android:name="android.permission.SCHEDULE_EXACT_ALARM" />
     <uses-permission
         android:name="android.permission.USE_BIOMETRIC" />
     <uses-permission
         android:name="android.permission.VIBRATE"/>
-    <!-- Write permission until Android 10 -->
-    <uses-permission
-        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-        android:maxSdkVersion="28"
-        tools:ignore="ScopedStorage" />
     <!-- Open apps from links -->
     <uses-permission
         android:name="android.permission.QUERY_ALL_PACKAGES"
@@ -30,12 +27,13 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:name="com.kunzisoft.keepass.app.App"
         android:allowBackup="true"
-        android:fullBackupContent="@xml/backup_rules"
+        android:fullBackupContent="@xml/old_backup_rules"
+        android:dataExtractionRules="@xml/backup_rules"
         android:backupAgent="com.kunzisoft.keepass.backup.SettingsBackupAgent"
         android:largeHeap="true"
         android:resizeableActivity="true"
         android:theme="@style/KeepassDXStyle.Night"
-        tools:targetApi="n">
+        tools:targetApi="s">
         <meta-data
             android:name="com.google.android.backup.api_key"
             android:value="${googleAndroidBackupAPIKey}" />
@@ -44,6 +42,7 @@
             android:theme="@style/KeepassDXStyle.SplashScreen"
             android:label="@string/app_name"
             android:launchMode="singleTop"
+            android:exported="true"
             android:configChanges="keyboardHidden"
             android:windowSoftInputMode="stateHidden|stateAlwaysHidden" >
             <intent-filter>
@@ -53,6 +52,7 @@
         </activity>
         <activity
             android:name="com.kunzisoft.keepass.activities.PasswordActivity"
+            android:exported="true"
             android:configChanges="keyboardHidden"
             android:windowSoftInputMode="adjustResize|stateUnchanged">
             <intent-filter>
@@ -111,6 +111,7 @@
         <!-- Main Activity -->
         <activity
             android:name="com.kunzisoft.keepass.activities.GroupActivity"
+            android:exported="false"
             android:configChanges="keyboardHidden"
             android:windowSoftInputMode="adjustPan">
             <meta-data
@@ -154,7 +155,8 @@
             android:name="com.kunzisoft.keepass.settings.AutofillSettingsActivity" />
         <activity
             android:name="com.kunzisoft.keepass.activities.EntrySelectionLauncherActivity"
-            android:theme="@style/Theme.Transparent">
+            android:theme="@style/Theme.Transparent"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.SEND" />
                 <category android:name="android.intent.category.DEFAULT" />
@@ -173,7 +175,8 @@
             android:theme="@style/Theme.Transparent" />
         <activity
             android:name="com.kunzisoft.keepass.settings.MagikeyboardSettingsActivity"
-            android:label="@string/keyboard_setting_label">
+            android:label="@string/keyboard_setting_label"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
             </intent-filter>
@@ -199,6 +202,7 @@
         <service
             android:name="com.kunzisoft.keepass.autofill.KeeAutofillService"
             android:label="@string/autofill_service_name"
+            android:exported="true"
             android:permission="android.permission.BIND_AUTOFILL_SERVICE">
             <meta-data
                 android:name="android.autofill"
@@ -210,6 +214,7 @@
         <service
             android:name="com.kunzisoft.keepass.magikeyboard.MagikeyboardService"
             android:label="@string/keyboard_label"
+            android:exported="true"
             android:permission="android.permission.BIND_INPUT_METHOD" >
             <meta-data android:name="android.view.im"
                 android:resource="@xml/keyboard_method"/>

app/src/main/java/com/kunzisoft/keepass/activities/AutofillLauncherActivity.kt

@@ -23,28 +23,33 @@ import android.app.Activity
 import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
-import android.content.IntentSender
 import android.os.Build
-import android.view.inputmethod.InlineSuggestionsRequest
+import android.os.Bundle
 import android.widget.Toast
+import androidx.activity.result.ActivityResultLauncher
 import androidx.annotation.RequiresApi
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
 import com.kunzisoft.keepass.activities.legacy.DatabaseModeActivity
+import com.kunzisoft.keepass.autofill.AutofillComponent
 import com.kunzisoft.keepass.autofill.AutofillHelper
-import com.kunzisoft.keepass.autofill.AutofillHelper.EXTRA_INLINE_SUGGESTIONS_REQUEST
+import com.kunzisoft.keepass.autofill.CompatInlineSuggestionsRequest
 import com.kunzisoft.keepass.autofill.KeeAutofillService
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.search.SearchHelper
 import com.kunzisoft.keepass.model.RegisterInfo
 import com.kunzisoft.keepass.model.SearchInfo
 import com.kunzisoft.keepass.settings.PreferencesUtil
-import com.kunzisoft.keepass.utils.LOCK_ACTION
 
 @RequiresApi(api = Build.VERSION_CODES.O)
 class AutofillLauncherActivity : DatabaseModeActivity() {
 
+    private var mAutofillActivityResultLauncher: ActivityResultLauncher<Intent>? =
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+            AutofillHelper.buildActivityResultLauncher(this, true)
+        else null
+
     override fun applyCustomStyle(): Boolean {
         return false
     }
@@ -60,17 +65,37 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
         EntrySelectionHelper.retrieveSpecialModeFromIntent(intent).let { specialMode ->
             when (specialMode) {
                 SpecialMode.SELECTION -> {
-                    // Build search param
-                    val searchInfo = SearchInfo().apply {
-                        applicationId = intent.getStringExtra(KEY_SEARCH_APPLICATION_ID)
-                        webDomain = intent.getStringExtra(KEY_SEARCH_DOMAIN)
-                        webScheme = intent.getStringExtra(KEY_SEARCH_SCHEME)
-                        manualSelection = intent.getBooleanExtra(KEY_MANUAL_SELECTION, false)
-                    }
-                    SearchInfo.getConcreteWebDomain(this, searchInfo.webDomain) { concreteWebDomain ->
-                        searchInfo.webDomain = concreteWebDomain
-                        launchSelection(database, searchInfo)
+                    intent.getBundleExtra(KEY_SELECTION_BUNDLE)?.let { bundle ->
+                        // To pass extra inline request
+                        var compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest? = null
+                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                            compatInlineSuggestionsRequest = bundle.getParcelable(KEY_INLINE_SUGGESTION)
+                        }
+                        // Build search param
+                        bundle.getParcelable<SearchInfo>(KEY_SEARCH_INFO)?.let { searchInfo ->
+                            SearchInfo.getConcreteWebDomain(
+                                this,
+                                searchInfo.webDomain
+                            ) { concreteWebDomain ->
+                                // Pass extra for Autofill (EXTRA_ASSIST_STRUCTURE)
+                                val assistStructure = AutofillHelper
+                                    .retrieveAutofillComponent(intent)
+                                    ?.assistStructure
+                                val newAutofillComponent = if (assistStructure != null) {
+                                    AutofillComponent(
+                                        assistStructure,
+                                        compatInlineSuggestionsRequest
+                                    )
+                                } else {
+                                    null
+                                }
+                                searchInfo.webDomain = concreteWebDomain
+                                launchSelection(database, newAutofillComponent, searchInfo)
+                            }
+                        }
                     }
+                    // Remove bundle
+                    intent.removeExtra(KEY_SELECTION_BUNDLE)
                 }
                 SpecialMode.REGISTRATION -> {
                     // To register info
@@ -91,10 +116,8 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
     }
 
     private fun launchSelection(database: Database?,
+                                autofillComponent: AutofillComponent?,
                                 searchInfo: SearchInfo) {
-        // Pass extra for Autofill (EXTRA_ASSIST_STRUCTURE)
-        val autofillComponent = AutofillHelper.retrieveAutofillComponent(intent)
-
         if (autofillComponent == null) {
             setResult(Activity.RESULT_CANCELED)
             finish()
@@ -119,6 +142,7 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
                         // Show the database UI to select the entry
                         GroupActivity.launchForAutofillResult(this,
                             openedDatabase,
+                            mAutofillActivityResultLauncher,
                             autofillComponent,
                             searchInfo,
                             false)
@@ -126,6 +150,7 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
                     {
                         // If database not open
                         FileDatabaseSelectActivity.launchForAutofillResult(this,
+                                mAutofillActivityResultLauncher,
                                 autofillComponent,
                                 searchInfo)
                     }
@@ -186,55 +211,47 @@ class AutofillLauncherActivity : DatabaseModeActivity() {
         Toast.makeText(this.applicationContext, R.string.autofill_read_only_save, Toast.LENGTH_LONG).show()
     }
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data)
-
-        if (PreferencesUtil.isAutofillCloseDatabaseEnable(this)) {
-            // Close the database
-            sendBroadcast(Intent(LOCK_ACTION))
-        }
-
-        super.onActivityResult(requestCode, resultCode, data)
-    }
-
     companion object {
 
-        private const val KEY_MANUAL_SELECTION = "KEY_MANUAL_SELECTION"
-        private const val KEY_SEARCH_APPLICATION_ID = "KEY_SEARCH_APPLICATION_ID"
-        private const val KEY_SEARCH_DOMAIN = "KEY_SEARCH_DOMAIN"
-        private const val KEY_SEARCH_SCHEME = "KEY_SEARCH_SCHEME"
+        private const val KEY_SELECTION_BUNDLE = "KEY_SELECTION_BUNDLE"
+        private const val KEY_SEARCH_INFO = "KEY_SEARCH_INFO"
+        private const val KEY_INLINE_SUGGESTION = "KEY_INLINE_SUGGESTION"
 
         private const val KEY_REGISTER_INFO = "KEY_REGISTER_INFO"
 
         fun getPendingIntentForSelection(context: Context,
                                          searchInfo: SearchInfo? = null,
-                                         inlineSuggestionsRequest: InlineSuggestionsRequest? = null): PendingIntent {
+                                         compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest? = null): PendingIntent {
             return PendingIntent.getActivity(context, 0,
-                    // Doesn't work with Parcelable (don't know why?)
-                    Intent(context, AutofillLauncherActivity::class.java).apply {
-                        searchInfo?.let {
-                            putExtra(KEY_SEARCH_APPLICATION_ID, it.applicationId)
-                            putExtra(KEY_SEARCH_DOMAIN, it.webDomain)
-                            putExtra(KEY_SEARCH_SCHEME, it.webScheme)
-                            putExtra(KEY_MANUAL_SELECTION, it.manualSelection)
-                        }
+                // Doesn't work with direct extra Parcelable (don't know why?)
+                // Wrap into a bundle to bypass the problem
+                Intent(context, AutofillLauncherActivity::class.java).apply {
+                    putExtra(KEY_SELECTION_BUNDLE, Bundle().apply {
+                        putParcelable(KEY_SEARCH_INFO, searchInfo)
                         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                            inlineSuggestionsRequest?.let {
-                                putExtra(EXTRA_INLINE_SUGGESTIONS_REQUEST, it)
-                            }
+                            putParcelable(KEY_INLINE_SUGGESTION, compatInlineSuggestionsRequest)
                         }
-                    },
-                    PendingIntent.FLAG_CANCEL_CURRENT)
+                    })
+                },
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                    PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_CANCEL_CURRENT
+                } else {
+                    PendingIntent.FLAG_CANCEL_CURRENT
+                })
         }
 
         fun getPendingIntentForRegistration(context: Context,
                                             registerInfo: RegisterInfo): PendingIntent {
             return PendingIntent.getActivity(context, 0,
-                    Intent(context, AutofillLauncherActivity::class.java).apply {
-                        EntrySelectionHelper.addSpecialModeInIntent(this, SpecialMode.REGISTRATION)
-                        putExtra(KEY_REGISTER_INFO, registerInfo)
-                    },
-                    PendingIntent.FLAG_CANCEL_CURRENT)
+                Intent(context, AutofillLauncherActivity::class.java).apply {
+                    EntrySelectionHelper.addSpecialModeInIntent(this, SpecialMode.REGISTRATION)
+                    putExtra(KEY_REGISTER_INFO, registerInfo)
+                },
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                    PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_CANCEL_CURRENT
+                } else {
+                    PendingIntent.FLAG_CANCEL_CURRENT
+                })
         }
 
         fun launchForRegistration(context: Context,

app/src/main/java/com/kunzisoft/keepass/activities/EntryActivity.kt

@@ -32,12 +32,18 @@ import android.view.MenuItem
 import android.view.View
 import android.widget.ImageView
 import android.widget.ProgressBar
+import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.viewModels
 import androidx.appcompat.widget.Toolbar
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
+import androidx.core.graphics.BlendModeColorFilterCompat
+import androidx.core.graphics.BlendModeCompat
+import androidx.core.graphics.ColorUtils
+import com.google.android.material.appbar.AppBarLayout
 import com.google.android.material.appbar.CollapsingToolbarLayout
+import com.google.android.material.progressindicator.LinearProgressIndicator
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.fragments.EntryFragment
 import com.kunzisoft.keepass.activities.helpers.ExternalFileHelper
@@ -60,22 +66,26 @@ import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.tasks.ActionRunnable
 import com.kunzisoft.keepass.tasks.AttachmentFileBinderManager
 import com.kunzisoft.keepass.timeout.TimeoutHelper
-import com.kunzisoft.keepass.utils.*
+import com.kunzisoft.keepass.utils.MenuUtil
+import com.kunzisoft.keepass.utils.UriUtil
+import com.kunzisoft.keepass.utils.UuidUtil
+import com.kunzisoft.keepass.view.changeControlColor
+import com.kunzisoft.keepass.view.changeTitleColor
 import com.kunzisoft.keepass.view.hideByFading
 import com.kunzisoft.keepass.view.showActionErrorIfNeeded
 import com.kunzisoft.keepass.viewmodels.EntryViewModel
 import java.util.*
-import kotlin.collections.HashMap
 
 class EntryActivity : DatabaseLockActivity() {
 
     private var coordinatorLayout: CoordinatorLayout? = null
     private var collapsingToolbarLayout: CollapsingToolbarLayout? = null
+    private var appBarLayout: AppBarLayout? = null
     private var titleIconView: ImageView? = null
     private var historyView: View? = null
     private var tagsListView: RecyclerView? = null
     private var tagsAdapter: TagsAdapter? = null
-    private var entryProgress: ProgressBar? = null
+    private var entryProgress: LinearProgressIndicator? = null
     private var lockView: View? = null
     private var toolbar: Toolbar? = null
     private var loadingView: ProgressBar? = null
@@ -89,11 +99,21 @@ class EntryActivity : DatabaseLockActivity() {
     private var mEntryLoaded = false
 
     private var mAttachmentFileBinderManager: AttachmentFileBinderManager? = null
-    private var mAttachmentsToDownload: HashMap<Int, Attachment> = HashMap()
     private var mExternalFileHelper: ExternalFileHelper? = null
+    private var mAttachmentSelected: Attachment? = null
+
+    private var mEntryActivityResultLauncher = EntryEditActivity.registerForEntryResult(this) {
+        // Reload the current id from database
+        mEntryViewModel.loadDatabase(mDatabase)
+    }
 
     private var mIcon: IconImage? = null
-    private var mIconColor: Int = 0
+    private var mColorAccent: Int = 0
+    private var mControlColor: Int = 0
+    private var mColorPrimary: Int = 0
+    private var mColorBackground: Int = 0
+    private var mBackgroundColor: Int? = null
+    private var mForegroundColor: Int? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -108,6 +128,7 @@ class EntryActivity : DatabaseLockActivity() {
         // Get views
         coordinatorLayout = findViewById(R.id.toolbar_coordinator)
         collapsingToolbarLayout = findViewById(R.id.toolbar_layout)
+        appBarLayout = findViewById(R.id.app_bar)
         titleIconView = findViewById(R.id.entry_icon)
         historyView = findViewById(R.id.history_container)
         tagsListView = findViewById(R.id.entry_tags_list_view)
@@ -119,10 +140,19 @@ class EntryActivity : DatabaseLockActivity() {
         collapsingToolbarLayout?.title = " "
         toolbar?.title = " "
 
-        // Retrieve the textColor to tint the icon
-        val taIconColor = theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
-        mIconColor = taIconColor.getColor(0, Color.BLACK)
-        taIconColor.recycle()
+        // Retrieve the textColor to tint the toolbar
+        val taColorAccent = theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
+        val taControlColor = theme.obtainStyledAttributes(intArrayOf(R.attr.toolbarColorControl))
+        val taColorPrimary = theme.obtainStyledAttributes(intArrayOf(R.attr.colorPrimary))
+        val taColorBackground = theme.obtainStyledAttributes(intArrayOf(android.R.attr.windowBackground))
+        mColorAccent = taColorAccent.getColor(0, Color.BLACK)
+        mControlColor = taControlColor.getColor(0, Color.BLACK)
+        mColorPrimary = taColorPrimary.getColor(0, Color.BLACK)
+        mColorBackground = taColorBackground.getColor(0, Color.BLACK)
+        taColorAccent.recycle()
+        taControlColor.recycle()
+        taColorPrimary.recycle()
+        taColorBackground.recycle()
 
         // Init Tags adapter
         tagsAdapter = TagsAdapter(this)
@@ -146,6 +176,15 @@ class EntryActivity : DatabaseLockActivity() {
 
         // Init SAF manager
         mExternalFileHelper = ExternalFileHelper(this)
+        mExternalFileHelper?.buildCreateDocument { createdFileUri ->
+            mAttachmentSelected?.let { attachment ->
+                if (createdFileUri != null) {
+                    mAttachmentFileBinderManager
+                        ?.startDownloadAttachment(createdFileUri, attachment)
+                }
+                mAttachmentSelected = null
+            }
+        }
         // Init attachment service binder manager
         mAttachmentFileBinderManager = AttachmentFileBinderManager(this)
 
@@ -165,10 +204,8 @@ class EntryActivity : DatabaseLockActivity() {
                 // Assign history dedicated view
                 historyView?.visibility = if (entryIsHistory) View.VISIBLE else View.GONE
                 if (entryIsHistory) {
-                    val taColorAccent = theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
                     collapsingToolbarLayout?.contentScrim =
-                        ColorDrawable(taColorAccent.getColor(0, Color.BLACK))
-                    taColorAccent.recycle()
+                        ColorDrawable(mColorAccent)
                 }
 
                 val entryInfo = entryInfoHistory.entryInfo
@@ -183,12 +220,9 @@ class EntryActivity : DatabaseLockActivity() {
                 }
                 // Assign title icon
                 mIcon = entryInfo.icon
-                titleIconView?.let { iconView ->
-                    mIconDrawableFactory?.assignDatabaseIcon(iconView, entryInfo.icon, mIconColor)
-                }
                 // Assign title text
                 val entryTitle =
-                    if (entryInfo.title.isNotEmpty()) entryInfo.title else entryInfo.id.toString()
+                    if (entryInfo.title.isNotEmpty()) entryInfo.title else UuidUtil.toHexString(entryInfo.id)
                 collapsingToolbarLayout?.title = entryTitle
                 toolbar?.title = entryTitle
                 mUrl = entryInfo.url
@@ -196,6 +230,9 @@ class EntryActivity : DatabaseLockActivity() {
                 val tags = entryInfo.tags
                 tagsListView?.visibility = if (tags.isEmpty()) View.GONE else View.VISIBLE
                 tagsAdapter?.setTags(tags)
+                // Assign colors
+                mBackgroundColor = entryInfo.backgroundColor
+                mForegroundColor = entryInfo.foregroundColor
 
                 loadingView?.hideByFading()
                 mEntryLoaded = true
@@ -207,9 +244,9 @@ class EntryActivity : DatabaseLockActivity() {
         }
 
         mEntryViewModel.onOtpElementUpdated.observe(this) { otpElement ->
-            if (otpElement == null)
+            if (otpElement == null) {
                 entryProgress?.visibility = View.GONE
-            when (otpElement?.type) {
+            } else when (otpElement.type) {
                 // Only add token if HOTP
                 OtpType.HOTP -> {
                     entryProgress?.visibility = View.GONE
@@ -218,7 +255,7 @@ class EntryActivity : DatabaseLockActivity() {
                 OtpType.TOTP -> {
                     entryProgress?.apply {
                         max = otpElement.period
-                        progress = otpElement.secondsRemaining
+                        setProgressCompat(otpElement.secondsRemaining, true)
                         visibility = View.VISIBLE
                     }
                 }
@@ -226,9 +263,8 @@ class EntryActivity : DatabaseLockActivity() {
         }
 
         mEntryViewModel.attachmentSelected.observe(this) { attachmentSelected ->
-            mExternalFileHelper?.createDocument(attachmentSelected.name)?.let { requestCode ->
-                mAttachmentsToDownload[requestCode] = attachmentSelected
-            }
+            mAttachmentSelected = attachmentSelected
+            mExternalFileHelper?.createDocument(attachmentSelected.name)
         }
 
         mEntryViewModel.historySelected.observe(this) { historySelected ->
@@ -237,7 +273,8 @@ class EntryActivity : DatabaseLockActivity() {
                     this,
                     database,
                     historySelected.nodeId,
-                    historySelected.historyPosition
+                    historySelected.historyPosition,
+                    mEntryActivityResultLauncher
                 )
             }
         }
@@ -255,13 +292,6 @@ class EntryActivity : DatabaseLockActivity() {
         super.onDatabaseRetrieved(database)
 
         mEntryViewModel.loadDatabase(database)
-
-        // Assign title icon
-        mIcon?.let { icon ->
-            titleIconView?.let { iconView ->
-                mIconDrawableFactory?.assignDatabaseIcon(iconView, icon, mIconColor)
-            }
-        }
     }
 
     override fun onDatabaseActionFinished(
@@ -299,6 +329,11 @@ class EntryActivity : DatabaseLockActivity() {
                 }
             }
         }
+
+        // Keep the screen on
+        if (PreferencesUtil.isKeepScreenOnEnabled(this)) {
+            window.addFlags(android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
+        }
     }
 
     override fun onPause() {
@@ -307,24 +342,27 @@ class EntryActivity : DatabaseLockActivity() {
         super.onPause()
     }
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        when (requestCode) {
-            EntryEditActivity.ADD_OR_UPDATE_ENTRY_REQUEST_CODE -> {
-                // Reload the current id from database
-                mEntryViewModel.loadDatabase(mDatabase)
-            }
-        }
-
-        mExternalFileHelper?.onCreateDocumentResult(requestCode, resultCode, data) { createdFileUri ->
-            if (createdFileUri != null) {
-                mAttachmentsToDownload[requestCode]?.let { attachmentToDownload ->
-                    mAttachmentFileBinderManager
-                            ?.startDownloadAttachment(createdFileUri, attachmentToDownload)
-                }
+    private fun applyToolbarColors() {
+        appBarLayout?.setBackgroundColor(mBackgroundColor ?: mColorPrimary)
+        collapsingToolbarLayout?.contentScrim = ColorDrawable(mBackgroundColor ?: mColorPrimary)
+        val backgroundDarker = if (mBackgroundColor != null) {
+            ColorUtils.blendARGB(mBackgroundColor!!, Color.WHITE, 0.1f)
+        } else {
+            mColorBackground
+        }
+        titleIconView?.background?.colorFilter = BlendModeColorFilterCompat
+            .createBlendModeColorFilterCompat(backgroundDarker, BlendModeCompat.SRC_IN)
+        mIcon?.let { icon ->
+            titleIconView?.let { iconView ->
+                mIconDrawableFactory?.assignDatabaseIcon(
+                    iconView,
+                    icon,
+                    mForegroundColor ?: mColorAccent
+                )
             }
         }
+        toolbar?.changeControlColor(mForegroundColor ?: mControlColor)
+        collapsingToolbarLayout?.changeTitleColor(mForegroundColor ?: mControlColor)
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
@@ -358,11 +396,17 @@ class EntryActivity : DatabaseLockActivity() {
         }
         if (mEntryIsHistory || mDatabaseReadOnly) {
             menu?.findItem(R.id.menu_save_database)?.isVisible = false
+            menu?.findItem(R.id.menu_merge_database)?.isVisible = false
             menu?.findItem(R.id.menu_edit)?.isVisible = false
         }
+        if (!mMergeDataAllowed) {
+            menu?.findItem(R.id.menu_merge_database)?.isVisible = false
+        }
         if (mSpecialMode != SpecialMode.DEFAULT) {
+            menu?.findItem(R.id.menu_merge_database)?.isVisible = false
             menu?.findItem(R.id.menu_reload_database)?.isVisible = false
         }
+        applyToolbarColors()
         return super.onPrepareOptionsMenu(menu)
     }
 
@@ -408,7 +452,8 @@ class EntryActivity : DatabaseLockActivity() {
                         EntryEditActivity.launchToUpdate(
                             this,
                             database,
-                            entryId
+                            entryId,
+                            mEntryActivityResultLauncher
                         )
                     }
                 }
@@ -437,6 +482,9 @@ class EntryActivity : DatabaseLockActivity() {
             R.id.menu_save_database -> {
                 saveDatabase()
             }
+            R.id.menu_merge_database -> {
+                mergeDatabase()
+            }
             R.id.menu_reload_database -> {
                 reloadDatabase()
             }
@@ -449,7 +497,7 @@ class EntryActivity : DatabaseLockActivity() {
         // Transit data in previous Activity after an update
         Intent().apply {
             putExtra(EntryEditActivity.ADD_OR_UPDATE_ENTRY_KEY, mMainEntryId)
-            setResult(EntryEditActivity.ADD_OR_UPDATE_ENTRY_RESULT_CODE, this)
+            setResult(Activity.RESULT_OK, this)
         }
         super.finish()
     }
@@ -467,15 +515,13 @@ class EntryActivity : DatabaseLockActivity() {
          */
         fun launch(activity: Activity,
                    database: Database,
-                   entryId: NodeId<UUID>) {
+                   entryId: NodeId<UUID>,
+                   activityResultLauncher: ActivityResultLauncher<Intent>) {
             if (database.loaded) {
                 if (TimeoutHelper.checkTimeAndLockIfTimeout(activity)) {
                     val intent = Intent(activity, EntryActivity::class.java)
                     intent.putExtra(KEY_ENTRY, entryId)
-                    activity.startActivityForResult(
-                        intent,
-                        EntryEditActivity.ADD_OR_UPDATE_ENTRY_REQUEST_CODE
-                    )
+                    activityResultLauncher.launch(intent)
                 }
             }
         }
@@ -486,16 +532,14 @@ class EntryActivity : DatabaseLockActivity() {
         fun launch(activity: Activity,
                    database: Database,
                    entryId: NodeId<UUID>,
-                   historyPosition: Int) {
+                   historyPosition: Int,
+                   activityResultLauncher: ActivityResultLauncher<Intent>) {
             if (database.loaded) {
                 if (TimeoutHelper.checkTimeAndLockIfTimeout(activity)) {
                     val intent = Intent(activity, EntryActivity::class.java)
                     intent.putExtra(KEY_ENTRY, entryId)
                     intent.putExtra(KEY_ENTRY_HISTORY_POSITION, historyPosition)
-                    activity.startActivityForResult(
-                        intent,
-                        EntryEditActivity.ADD_OR_UPDATE_ENTRY_REQUEST_CODE
-                    )
+                    activityResultLauncher.launch(intent)
                 }
             }
         }

app/src/main/java/com/kunzisoft/keepass/activities/EntryEditActivity.kt

@@ -33,12 +33,17 @@ import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import android.widget.*
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.activity.viewModels
 import androidx.annotation.RequiresApi
 import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.app.AppCompatActivity
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.view.isVisible
 import androidx.core.widget.NestedScrollView
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
 import com.google.android.material.snackbar.Snackbar
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.dialogs.*
@@ -69,6 +74,7 @@ import com.kunzisoft.keepass.tasks.AttachmentFileBinderManager
 import com.kunzisoft.keepass.timeout.TimeoutHelper
 import com.kunzisoft.keepass.utils.UriUtil
 import com.kunzisoft.keepass.view.*
+import com.kunzisoft.keepass.viewmodels.ColorPickerViewModel
 import com.kunzisoft.keepass.viewmodels.EntryEditViewModel
 import org.joda.time.DateTime
 import java.util.*
@@ -96,6 +102,9 @@ class EntryEditActivity : DatabaseLockActivity(),
     private var mTemplate: Template? = null
     private var mIsTemplate: Boolean = false
     private var mEntryLoaded: Boolean = false
+    private var mTemplatesSelectorAdapter: TemplatesSelectorAdapter? = null
+
+    private val mColorPickerViewModel: ColorPickerViewModel by viewModels()
 
     private var mAllowCustomFields = false
     private var mAllowOTP = false
@@ -106,6 +115,10 @@ class EntryEditActivity : DatabaseLockActivity(),
     // Education
     private var entryEditActivityEducation: EntryEditActivityEducation? = null
 
+    private var mIconSelectionActivityResultLauncher = IconPickerActivity.registerIconSelectionForResult(this) { icon ->
+        mEntryEditViewModel.selectIcon(icon)
+    }
+
     // To ask data lost only one time
     private var backPressedAlreadyApproved = false
 
@@ -154,6 +167,21 @@ class EntryEditActivity : DatabaseLockActivity(),
 
         // To retrieve attachment
         mExternalFileHelper = ExternalFileHelper(this)
+        mExternalFileHelper?.buildOpenDocument { uri ->
+            uri?.let { attachmentToUploadUri ->
+                UriUtil.getFileData(this, attachmentToUploadUri)?.also { documentFile ->
+                    documentFile.name?.let { fileName ->
+                        if (documentFile.length() > MAX_WARNING_BINARY_FILE) {
+                            FileTooBigDialogFragment.build(attachmentToUploadUri, fileName)
+                                .show(supportFragmentManager, "fileTooBigFragment")
+                        } else {
+                            mEntryEditViewModel.buildNewAttachment(attachmentToUploadUri, fileName)
+                        }
+                    }
+                }
+            }
+        }
+
         mAttachmentFileBinderManager = AttachmentFileBinderManager(this)
         // Verify the education views
         entryEditActivityEducation = EntryEditActivityEducation(this)
@@ -175,11 +203,13 @@ class EntryEditActivity : DatabaseLockActivity(),
                     templateSelectorSpinner?.apply {
                         // Build template selector
                         if (templates.isNotEmpty()) {
-                            adapter = TemplatesSelectorAdapter(
+                            mTemplatesSelectorAdapter = TemplatesSelectorAdapter(
                                 this@EntryEditActivity,
-                                mIconDrawableFactory,
                                 templates
-                            )
+                            ).apply {
+                                iconDrawableFactory = mIconDrawableFactory
+                            }
+                            adapter = mTemplatesSelectorAdapter
                             val selectedTemplate = if (mTemplate != null)
                                 mTemplate
                             else
@@ -213,7 +243,16 @@ class EntryEditActivity : DatabaseLockActivity(),
 
         // View model listeners
         mEntryEditViewModel.requestIconSelection.observe(this) { iconImage ->
-            IconPickerActivity.launch(this@EntryEditActivity, iconImage)
+            IconPickerActivity.launch(this@EntryEditActivity, iconImage, mIconSelectionActivityResultLauncher)
+        }
+
+        mEntryEditViewModel.requestColorSelection.observe(this) { color ->
+            ColorPickerDialogFragment.newInstance(color)
+                .show(supportFragmentManager, "ColorPickerFragment")
+        }
+
+        mColorPickerViewModel.colorPicked.observe(this) { color ->
+            mEntryEditViewModel.selectColor(color)
         }
 
         mEntryEditViewModel.requestDateTimeSelection.observe(this) { dateInstant ->
@@ -321,6 +360,10 @@ class EntryEditActivity : DatabaseLockActivity(),
         mAllowCustomFields = database?.allowEntryCustomFields() == true
         mAllowOTP = database?.allowOTP == true
         mEntryEditViewModel.loadDatabase(database)
+        mTemplatesSelectorAdapter?.apply {
+            iconDrawableFactory = mIconDrawableFactory
+            notifyDataSetChanged()
+        }
     }
 
     override fun onDatabaseActionFinished(
@@ -472,29 +515,6 @@ class EntryEditActivity : DatabaseLockActivity(),
         }
     }
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        IconPickerActivity.onActivityResult(requestCode, resultCode, data) { icon ->
-            mEntryEditViewModel.selectIcon(icon)
-        }
-
-        mExternalFileHelper?.onOpenDocumentResult(requestCode, resultCode, data) { uri ->
-            uri?.let { attachmentToUploadUri ->
-                UriUtil.getFileData(this, attachmentToUploadUri)?.also { documentFile ->
-                    documentFile.name?.let { fileName ->
-                        if (documentFile.length() > MAX_WARNING_BINARY_FILE) {
-                            FileTooBigDialogFragment.build(attachmentToUploadUri, fileName)
-                                    .show(supportFragmentManager, "fileTooBigFragment")
-                        } else {
-                            mEntryEditViewModel.buildNewAttachment(attachmentToUploadUri, fileName)
-                        }
-                    }
-                }
-            }
-        }
-    }
-
     /**
      * Set up OTP (HOTP or TOTP) and add it as extra field
      */
@@ -585,7 +605,7 @@ class EntryEditActivity : DatabaseLockActivity(),
                         && entryEditActivityEducation.checkAndPerformedAttachmentEducation(
                         attachmentView,
                         {
-                            mExternalFileHelper?.openDocument()
+                            addNewAttachment()
                         },
                         {
                             performedNextEducation(entryEditActivityEducation)
@@ -686,7 +706,7 @@ class EntryEditActivity : DatabaseLockActivity(),
             val intentEntry = Intent()
             bundle.putParcelable(ADD_OR_UPDATE_ENTRY_KEY, entry.nodeId)
             intentEntry.putExtras(bundle)
-            setResult(ADD_OR_UPDATE_ENTRY_RESULT_CODE, intentEntry)
+            setResult(Activity.RESULT_OK, intentEntry)
             super.finish()
         } catch (e: Exception) {
             // Exception when parcelable can't be done
@@ -701,23 +721,46 @@ class EntryEditActivity : DatabaseLockActivity(),
         // Keys for current Activity
         const val KEY_ENTRY = "entry"
         const val KEY_PARENT = "parent"
-
-        // Keys for callback
-        const val ADD_OR_UPDATE_ENTRY_RESULT_CODE = 31
-        const val ADD_OR_UPDATE_ENTRY_REQUEST_CODE = 7129
         const val ADD_OR_UPDATE_ENTRY_KEY = "ADD_OR_UPDATE_ENTRY_KEY"
 
+        fun registerForEntryResult(fragment: Fragment,
+                                   entryAddedOrUpdatedListener: (NodeId<UUID>?) -> Unit): ActivityResultLauncher<Intent> {
+            return fragment.registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+                if (result.resultCode == Activity.RESULT_OK) {
+                    entryAddedOrUpdatedListener.invoke(
+                        result.data?.getParcelableExtra(ADD_OR_UPDATE_ENTRY_KEY)
+                    )
+                } else {
+                    entryAddedOrUpdatedListener.invoke(null)
+                }
+            }
+        }
+
+        fun registerForEntryResult(activity: FragmentActivity,
+                                   entryAddedOrUpdatedListener: (NodeId<UUID>?) -> Unit): ActivityResultLauncher<Intent> {
+            return activity.registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+                if (result.resultCode == Activity.RESULT_OK) {
+                    entryAddedOrUpdatedListener.invoke(
+                        result.data?.getParcelableExtra(ADD_OR_UPDATE_ENTRY_KEY)
+                    )
+                } else {
+                    entryAddedOrUpdatedListener.invoke(null)
+                }
+            }
+        }
+
         /**
          * Launch EntryEditActivity to update an existing entry by his [entryId]
          */
         fun launchToUpdate(activity: Activity,
                            database: Database,
-                           entryId: NodeId<UUID>) {
+                           entryId: NodeId<UUID>,
+                           activityResultLauncher: ActivityResultLauncher<Intent>) {
             if (database.loaded && !database.isReadOnly) {
                 if (TimeoutHelper.checkTimeAndLockIfTimeout(activity)) {
                     val intent = Intent(activity, EntryEditActivity::class.java)
                     intent.putExtra(KEY_ENTRY, entryId)
-                    activity.startActivityForResult(intent, ADD_OR_UPDATE_ENTRY_REQUEST_CODE)
+                    activityResultLauncher.launch(intent)
                 }
             }
         }
@@ -727,12 +770,13 @@ class EntryEditActivity : DatabaseLockActivity(),
          */
         fun launchToCreate(activity: Activity,
                            database: Database,
-                           groupId: NodeId<*>) {
+                           groupId: NodeId<*>,
+                           activityResultLauncher: ActivityResultLauncher<Intent>) {
             if (database.loaded && !database.isReadOnly) {
                 if (TimeoutHelper.checkTimeAndLockIfTimeout(activity)) {
                     val intent = Intent(activity, EntryEditActivity::class.java)
                     intent.putExtra(KEY_PARENT, groupId)
-                    activity.startActivityForResult(intent, ADD_OR_UPDATE_ENTRY_REQUEST_CODE)
+                    activityResultLauncher.launch(intent)
                 }
             }
         }
@@ -795,8 +839,9 @@ class EntryEditActivity : DatabaseLockActivity(),
          * Launch EntryEditActivity to add a new entry in autofill selection
          */
         @RequiresApi(api = Build.VERSION_CODES.O)
-        fun launchForAutofillResult(activity: Activity,
+        fun launchForAutofillResult(activity: AppCompatActivity,
                                     database: Database,
+                                    activityResultLauncher: ActivityResultLauncher<Intent>?,
                                     autofillComponent: AutofillComponent,
                                     groupId: NodeId<*>,
                                     searchInfo: SearchInfo? = null) {
@@ -807,6 +852,7 @@ class EntryEditActivity : DatabaseLockActivity(),
                     AutofillHelper.startActivityForAutofillResult(
                         activity,
                         intent,
+                        activityResultLauncher,
                         autofillComponent,
                         searchInfo
                     )

app/src/main/java/com/kunzisoft/keepass/activities/FileDatabaseSelectActivity.kt

@@ -31,8 +31,10 @@ import android.util.Log
 import android.view.Menu
 import android.view.MenuItem
 import android.view.View
+import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.viewModels
 import androidx.annotation.RequiresApi
+import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.Toolbar
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -85,6 +87,11 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
 
     private var mExternalFileHelper: ExternalFileHelper? = null
 
+    private var mAutofillActivityResultLauncher: ActivityResultLauncher<Intent>? =
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+            AutofillHelper.buildActivityResultLauncher(this)
+        else null
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -109,6 +116,22 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
 
         // Open database button
         mExternalFileHelper = ExternalFileHelper(this)
+        mExternalFileHelper?.buildOpenDocument { uri ->
+            uri?.let {
+                launchPasswordActivityWithPath(uri)
+            }
+        }
+        mExternalFileHelper?.buildCreateDocument("application/x-keepass") { databaseFileCreatedUri ->
+            mDatabaseFileUri = databaseFileCreatedUri
+            if (mDatabaseFileUri != null) {
+                AssignMasterKeyDialogFragment.getInstance(true)
+                    .show(supportFragmentManager, "passwordDialog")
+            } else {
+                val error = getString(R.string.error_create_database)
+                Snackbar.make(coordinatorLayout, error, Snackbar.LENGTH_LONG).asError().show()
+                Log.e(TAG, error)
+            }
+        }
         openDatabaseButtonView = findViewById(R.id.open_keyfile_button)
         openDatabaseButtonView?.setOpenDocumentClickListener(mExternalFileHelper)
 
@@ -256,8 +279,9 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
      * Create a new file by calling the content provider
      */
     private fun createNewFile() {
-        mExternalFileHelper?.createDocument( getString(R.string.database_file_name_default) +
-                getString(R.string.database_file_extension_default), "application/x-keepass")
+        mExternalFileHelper?.createDocument(
+            getString(R.string.database_file_name_default) +
+                getString(R.string.database_file_extension_default))
     }
 
     private fun fileNoFoundAction(e: FileNotFoundException) {
@@ -274,7 +298,8 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
                     fileNoFoundAction(exception)
                 },
                 { onCancelSpecialMode() },
-                { onLaunchActivitySpecialMode() })
+                { onLaunchActivitySpecialMode() },
+                mAutofillActivityResultLauncher)
     }
 
     private fun launchGroupActivityIfLoaded(database: Database) {
@@ -283,7 +308,8 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
                 database,
                 { onValidateSpecialMode() },
                 { onCancelSpecialMode() },
-                { onLaunchActivitySpecialMode() })
+                { onLaunchActivitySpecialMode() },
+                mAutofillActivityResultLauncher)
         }
     }
 
@@ -359,33 +385,6 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
 
     override fun onAssignKeyDialogNegativeClick(mainCredential: MainCredential) {}
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data)
-        }
-
-        mExternalFileHelper?.onOpenDocumentResult(requestCode, resultCode, data) { uri ->
-            if (uri != null) {
-                launchPasswordActivityWithPath(uri)
-            }
-        }
-
-        // Retrieve the created URI from the file manager
-        mExternalFileHelper?.onCreateDocumentResult(requestCode, resultCode, data) { databaseFileCreatedUri ->
-            mDatabaseFileUri = databaseFileCreatedUri
-            if (mDatabaseFileUri != null) {
-                AssignMasterKeyDialogFragment.getInstance(true)
-                        .show(supportFragmentManager, "passwordDialog")
-            } else {
-                val error = getString(R.string.error_create_database)
-                Snackbar.make(coordinatorLayout, error, Snackbar.LENGTH_LONG).asError().show()
-                Log.e(TAG, error)
-            }
-        }
-    }
-
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         super.onCreateOptionsMenu(menu)
 
@@ -499,11 +498,13 @@ class FileDatabaseSelectActivity : DatabaseModeActivity(),
          */
 
         @RequiresApi(api = Build.VERSION_CODES.O)
-        fun launchForAutofillResult(activity: Activity,
+        fun launchForAutofillResult(activity: AppCompatActivity,
+                                    activityResultLauncher: ActivityResultLauncher<Intent>?,
                                     autofillComponent: AutofillComponent,
                                     searchInfo: SearchInfo? = null) {
             AutofillHelper.startActivityForAutofillResult(activity,
                     Intent(activity, FileDatabaseSelectActivity::class.java),
+                    activityResultLauncher,
                     autofillComponent,
                     searchInfo)
         }

app/src/main/java/com/kunzisoft/keepass/activities/GroupActivity.kt

@@ -25,7 +25,7 @@ import android.app.TimePickerDialog
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
-import android.graphics.Color
+import android.graphics.PorterDuff
 import android.os.*
 import android.util.Log
 import android.view.Menu
@@ -33,18 +33,23 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import android.widget.*
+import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.viewModels
 import androidx.annotation.RequiresApi
+import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.view.ActionMode
 import androidx.appcompat.widget.SearchView
 import androidx.appcompat.widget.Toolbar
 import androidx.coordinatorlayout.widget.CoordinatorLayout
+import androidx.core.view.isVisible
+import androidx.recyclerview.widget.RecyclerView
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.activities.dialogs.*
 import com.kunzisoft.keepass.activities.fragments.GroupFragment
 import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
 import com.kunzisoft.keepass.activities.legacy.DatabaseLockActivity
+import com.kunzisoft.keepass.adapters.BreadcrumbAdapter
 import com.kunzisoft.keepass.adapters.SearchEntryCursorAdapter
 import com.kunzisoft.keepass.autofill.AutofillComponent
 import com.kunzisoft.keepass.autofill.AutofillHelper
@@ -58,6 +63,7 @@ import com.kunzisoft.keepass.model.GroupInfo
 import com.kunzisoft.keepass.model.RegisterInfo
 import com.kunzisoft.keepass.model.SearchInfo
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_UPDATE_ENTRY_TASK
+import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_UPDATE_GROUP_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.NEW_NODES_KEY
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.getListNodesFromBundle
 import com.kunzisoft.keepass.settings.PreferencesUtil
@@ -75,6 +81,7 @@ class GroupActivity : DatabaseLockActivity(),
         GroupFragment.NodeClickListener,
         GroupFragment.NodesActionMenuListener,
         GroupFragment.OnScrollListener,
+        GroupFragment.GroupRefreshedListener,
         SortDialogFragment.SortSelectionListener {
 
     // Views
@@ -82,18 +89,25 @@ class GroupActivity : DatabaseLockActivity(),
     private var coordinatorLayout: CoordinatorLayout? = null
     private var lockView: View? = null
     private var toolbar: Toolbar? = null
+    private var databaseNameContainer: ViewGroup? = null
+    private var databaseColorView: ImageView? = null
+    private var databaseNameView: TextView? = null
+    private var searchContainer: ViewGroup? = null
+    private var searchNumbers: TextView? = null
+    private var searchString: TextView? = null
+    private var toolbarBreadcrumb: Toolbar? = null
     private var searchTitleView: View? = null
     private var toolbarAction: ToolbarAction? = null
-    private var iconView: ImageView? = null
     private var numberChildrenView: TextView? = null
     private var addNodeButtonView: AddNodeButtonView? = null
-    private var groupNameView: TextView? = null
-    private var groupMetaView: TextView? = null
+    private var breadcrumbListView: RecyclerView? = null
     private var loadingView: ProgressBar? = null
 
     private val mGroupViewModel: GroupViewModel by viewModels()
     private val mGroupEditViewModel: GroupEditViewModel by viewModels()
 
+    private var mBreadcrumbAdapter: BreadcrumbAdapter? = null
+
     private var mGroupFragment: GroupFragment? = null
     private var mRecyclingBinEnabled = false
     private var mRecyclingBinIsCurrentGroup = false
@@ -111,7 +125,15 @@ class GroupActivity : DatabaseLockActivity(),
     private var mSearchSuggestionAdapter: SearchEntryCursorAdapter? = null
     private var mOnSuggestionListener: SearchView.OnSuggestionListener? = null
 
-    private var mIconColor: Int = 0
+    private var mIconSelectionActivityResultLauncher = IconPickerActivity.registerIconSelectionForResult(this) { icon ->
+        // To create tree dialog for icon
+        mGroupEditViewModel.selectIcon(icon)
+    }
+
+    private var mAutofillActivityResultLauncher: ActivityResultLauncher<Intent>? =
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+            AutofillHelper.buildActivityResultLauncher(this)
+        else null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -122,13 +144,18 @@ class GroupActivity : DatabaseLockActivity(),
         // Initialize views
         rootContainerView = findViewById(R.id.activity_group_container_view)
         coordinatorLayout = findViewById(R.id.group_coordinator)
-        iconView = findViewById(R.id.group_icon)
         numberChildrenView = findViewById(R.id.group_numbers)
         addNodeButtonView = findViewById(R.id.add_node_button)
         toolbar = findViewById(R.id.toolbar)
+        databaseNameContainer = findViewById(R.id.database_name_container)
+        databaseColorView = findViewById(R.id.database_color)
+        databaseNameView = findViewById(R.id.database_name)
+        searchContainer = findViewById(R.id.search_container)
+        searchNumbers = findViewById(R.id.search_numbers)
+        searchString = findViewById(R.id.search_string)
+        toolbarBreadcrumb = findViewById(R.id.toolbar_breadcrumb)
         searchTitleView = findViewById(R.id.search_title)
-        groupNameView = findViewById(R.id.group_name)
-        groupMetaView = findViewById(R.id.group_meta)
+        breadcrumbListView = findViewById(R.id.breadcrumb_list)
         toolbarAction = findViewById(R.id.toolbar_action)
         lockView = findViewById(R.id.lock_button)
         loadingView = findViewById(R.id.loading)
@@ -140,10 +167,42 @@ class GroupActivity : DatabaseLockActivity(),
         toolbar?.title = ""
         setSupportActionBar(toolbar)
 
-        // Retrieve the textColor to tint the icon
-        val taTextColor = theme.obtainStyledAttributes(intArrayOf(R.attr.textColorInverse))
-        mIconColor = taTextColor.getColor(0, Color.WHITE)
-        taTextColor.recycle()
+        mBreadcrumbAdapter = BreadcrumbAdapter(this).apply {
+            // Open group on breadcrumb click
+            onItemClickListener = { node, _ ->
+                // If last item & not a virtual root group
+                val currentGroup = mCurrentGroup
+                if (currentGroup != null && node == currentGroup
+                    && (currentGroup != mDatabase?.rootGroup
+                            || mDatabase?.rootGroupIsVirtual == false)
+                ) {
+                    finishNodeAction()
+                    launchDialogToShowGroupInfo(currentGroup)
+                } else {
+                    if (mGroupFragment?.nodeActionSelectionMode == true) {
+                        finishNodeAction()
+                    }
+                    mDatabase?.let { database ->
+                        onNodeClick(database, node)
+                    }
+                }
+            }
+            onLongItemClickListener = { node, position ->
+                val currentGroup = mCurrentGroup
+                if (currentGroup != null && node == currentGroup
+                    && (currentGroup != mDatabase?.rootGroup
+                            || mDatabase?.rootGroupIsVirtual == false)
+                ) {
+                    finishNodeAction()
+                    launchDialogForGroupUpdate(currentGroup)
+                } else {
+                    onItemClickListener?.invoke(node, position)
+                }
+            }
+        }
+        breadcrumbListView?.apply {
+            adapter = mBreadcrumbAdapter
+        }
 
         // Retrieve group if defined at launch
         manageIntent(intent)
@@ -201,21 +260,22 @@ class GroupActivity : DatabaseLockActivity(),
 
                 // Add listeners to the add buttons
                 addNodeButtonView?.setAddGroupClickListener {
-                    GroupEditDialogFragment.create(GroupInfo().apply {
-                        if (currentGroup.allowAddNoteInGroup) {
-                            notes = ""
-                        }
-                    }).show(supportFragmentManager, GroupEditDialogFragment.TAG_CREATE_GROUP)
+                    launchDialogForGroupCreation(currentGroup)
                 }
                 addNodeButtonView?.setAddEntryClickListener {
                     mDatabase?.let { database ->
                         EntrySelectionHelper.doSpecialAction(intent,
                             {
-                                EntryEditActivity.launchToCreate(
-                                    this@GroupActivity,
-                                    database,
-                                    currentGroup.nodeId
-                                )
+                                mCurrentGroup?.nodeId?.let { currentParentGroupId ->
+                                    mGroupFragment?.mEntryActivityResultLauncher?.let { resultLauncher ->
+                                        EntryEditActivity.launchToCreate(
+                                            this@GroupActivity,
+                                            database,
+                                            currentParentGroupId,
+                                            resultLauncher
+                                        )
+                                    }
+                                }
                             },
                             {
                                 // Search not used
@@ -243,6 +303,7 @@ class GroupActivity : DatabaseLockActivity(),
                                     EntryEditActivity.launchForAutofillResult(
                                         this@GroupActivity,
                                         database,
+                                        mAutofillActivityResultLauncher,
                                         autofillComponent,
                                         currentGroup.nodeId,
                                         searchInfo
@@ -266,9 +327,6 @@ class GroupActivity : DatabaseLockActivity(),
                 }
             }
 
-            assignGroupViewElements(currentGroup)
-            invalidateOptionsMenu()
-
             loadingView?.hideByFading()
         }
 
@@ -277,7 +335,7 @@ class GroupActivity : DatabaseLockActivity(),
         }
 
         mGroupEditViewModel.requestIconSelection.observe(this) { iconImage ->
-            IconPickerActivity.launch(this@GroupActivity, iconImage)
+            IconPickerActivity.launch(this@GroupActivity, iconImage, mIconSelectionActivityResultLauncher)
         }
 
         mGroupEditViewModel.requestDateTimeSelection.observe(this) { dateInstant ->
@@ -319,6 +377,29 @@ class GroupActivity : DatabaseLockActivity(),
         return rootContainerView
     }
 
+    private fun loadGroup(database: Database?) {
+        when {
+            Intent.ACTION_SEARCH == intent.action -> {
+                finishNodeAction()
+                val searchString =
+                    intent.getStringExtra(SearchManager.QUERY)?.trim { it <= ' ' } ?: ""
+                mGroupViewModel.loadGroupFromSearch(
+                    database,
+                    searchString,
+                    PreferencesUtil.omitBackup(this)
+                )
+            }
+            mCurrentGroupState == null -> {
+                mRootGroup?.let { rootGroup ->
+                    mGroupViewModel.loadGroup(database, rootGroup, 0)
+                }
+            }
+            else -> {
+                mGroupViewModel.loadGroup(database, mCurrentGroupState)
+            }
+        }
+    }
+
     override fun onDatabaseRetrieved(database: Database?) {
         super.onDatabaseRetrieved(database)
 
@@ -328,17 +409,23 @@ class GroupActivity : DatabaseLockActivity(),
                 && database?.isRecycleBinEnabled == true
 
         mRootGroup = database?.rootGroup
-        if (mCurrentGroupState == null) {
-            mRootGroup?.let { rootGroup ->
-                mGroupViewModel.loadGroup(database, rootGroup, 0)
-            }
-        } else {
-            mGroupViewModel.loadGroup(database, mCurrentGroupState)
-        }
+        loadGroup(database)
 
         // Search suggestion
         database?.let {
+            databaseNameView?.text = if (it.name.isNotEmpty()) it.name else getString(R.string.database)
+            val customColor = it.customColor
+            if (customColor != null) {
+                databaseColorView?.visibility = View.VISIBLE
+                databaseColorView?.setColorFilter(
+                    customColor,
+                    PorterDuff.Mode.SRC_IN
+                )
+            } else {
+                databaseColorView?.visibility = View.GONE
+            }
             mSearchSuggestionAdapter = SearchEntryCursorAdapter(this, it)
+            mBreadcrumbAdapter?.iconDrawableFactory = it.iconDrawableFactory
             mOnSuggestionListener = object : SearchView.OnSuggestionListener {
                 override fun onSuggestionClick(position: Int): Boolean {
                     mSearchSuggestionAdapter?.let { searchAdapter ->
@@ -413,16 +500,27 @@ class GroupActivity : DatabaseLockActivity(),
                     )
                 }
             }
+            ACTION_DATABASE_UPDATE_GROUP_TASK -> {
+                if (result.isSuccess) {
+                    try {
+                        if (mCurrentGroup == newNodes[0] as Group)
+                            reloadCurrentGroup()
+                    } catch (e: Exception) {
+                        Log.e(
+                            TAG,
+                            "Unable to perform action after group update",
+                            e
+                        )
+                    }
+                }
+            }
         }
 
         coordinatorLayout?.showActionErrorIfNeeded(result)
         if (!result.isSuccess) {
             reloadCurrentGroup()
         }
-
         finishNodeAction()
-
-        refreshNumberOfChildren(mCurrentGroup)
     }
 
     /**
@@ -447,16 +545,7 @@ class GroupActivity : DatabaseLockActivity(),
             }
             // To transform KEY_SEARCH_INFO in ACTION_SEARCH
             transformSearchInfoIntent(intent)
-            if (Intent.ACTION_SEARCH == intent.action) {
-                finishNodeAction()
-                val searchString =
-                    intent.getStringExtra(SearchManager.QUERY)?.trim { it <= ' ' } ?: ""
-                mGroupViewModel.loadGroupFromSearch(
-                    mDatabase,
-                    searchString,
-                    PreferencesUtil.omitBackup(this)
-                )
-            }
+            loadGroup(mDatabase)
         }
     }
 
@@ -476,62 +565,44 @@ class GroupActivity : DatabaseLockActivity(),
         super.onSaveInstanceState(outState)
     }
 
+    override fun onGroupRefreshed() {
+        mCurrentGroup?.let { currentGroup ->
+            assignGroupViewElements(currentGroup)
+        }
+    }
+
     private fun assignGroupViewElements(group: Group?) {
         // Assign title
-        if (group != null) {
-            if (groupNameView != null) {
-                val title = group.title
-                groupNameView?.text = if (title.isNotEmpty()) title else getText(R.string.root)
-                groupNameView?.invalidate()
-            }
-            if (groupMetaView != null) {
-                val meta = group.nodeId.toString()
-                groupMetaView?.text = meta
-                if (meta.isNotEmpty()
-                    && !group.isVirtual
-                    && PreferencesUtil.showUUID(this)) {
-                    groupMetaView?.visibility = View.VISIBLE
-                } else {
-                    groupMetaView?.visibility = View.GONE
-                }
-                groupMetaView?.invalidate()
-            }
-        }
-
         if (group?.isVirtual == true) {
-            searchTitleView?.visibility = View.VISIBLE
-            if (toolbar != null) {
-                toolbar?.navigationIcon = null
-            }
-            iconView?.visibility = View.GONE
+            searchContainer?.visibility = View.VISIBLE
+            val title = group.title
+            searchString?.text = if (title.isNotEmpty()) title else ""
+            searchNumbers?.text = group.numberOfChildEntries.toString()
+            databaseNameContainer?.visibility = View.GONE
+            toolbarBreadcrumb?.navigationIcon = null
+            toolbarBreadcrumb?.collapse()
         } else {
-            searchTitleView?.visibility = View.GONE
-            // Assign the group icon depending of IconPack or custom icon
-            iconView?.visibility = View.VISIBLE
-            group?.let { currentGroup ->
-                iconView?.let { imageView ->
-                    mIconDrawableFactory?.assignDatabaseIcon(
-                        imageView,
-                        currentGroup.icon,
-                        mIconColor
-                    )
-                }
-
-                if (toolbar != null) {
-                    if (group.containsParent())
-                        toolbar?.setNavigationIcon(R.drawable.ic_arrow_up_white_24dp)
-                    else {
-                        toolbar?.navigationIcon = null
-                    }
+            searchContainer?.visibility = View.GONE
+            databaseNameContainer?.visibility = View.VISIBLE
+            // Refresh breadcrumb
+            if (toolbarBreadcrumb?.isVisible != true) {
+                toolbarBreadcrumb?.expand {
+                    setBreadcrumbNode(group)
                 }
+            } else {
+                // Add breadcrumb
+                setBreadcrumbNode(group)
             }
         }
-
-        // Assign number of children
-        refreshNumberOfChildren(group)
-
-        // Hide button
         initAddButton(group)
+        invalidateOptionsMenu()
+    }
+
+    private fun setBreadcrumbNode(group: Group?) {
+        mBreadcrumbAdapter?.apply {
+            setNode(group)
+            breadcrumbListView?.scrollToPosition(itemCount -1)
+        }
     }
 
     private fun initAddButton(group: Group?) {
@@ -553,18 +624,6 @@ class GroupActivity : DatabaseLockActivity(),
         }
     }
 
-    private fun refreshNumberOfChildren(group: Group?) {
-        numberChildrenView?.apply {
-            if (PreferencesUtil.showNumberEntries(context)) {
-                group?.refreshNumberOfChildEntries(Group.ChildFilter.getDefaults(context))
-                text = group?.numberOfChildEntries?.toString() ?: ""
-                visibility = View.VISIBLE
-            } else {
-                visibility = View.GONE
-            }
-        }
-    }
-
     override fun onScrolled(dy: Int) {
         if (actionNodeMode == null)
             addNodeButtonView?.hideOrShowButtonOnScrollListener(dy)
@@ -594,11 +653,14 @@ class GroupActivity : DatabaseLockActivity(),
                 val entryVersioned = node as Entry
                 EntrySelectionHelper.doSpecialAction(intent,
                     {
-                        EntryActivity.launch(
-                            this@GroupActivity,
-                            database,
-                            entryVersioned.nodeId
-                        )
+                        mGroupFragment?.mEntryActivityResultLauncher?.let { resultLauncher ->
+                            EntryActivity.launch(
+                                this@GroupActivity,
+                                database,
+                                entryVersioned.nodeId,
+                                resultLauncher
+                            )
+                        }
                     },
                     {
                         // Nothing here, a search is simply performed
@@ -788,23 +850,42 @@ class GroupActivity : DatabaseLockActivity(),
         finishNodeAction()
         when (node.type) {
             Type.GROUP -> {
-                mOldGroupToUpdate = node as Group
-                GroupEditDialogFragment.update(mOldGroupToUpdate!!.getGroupInfo())
-                    .show(
-                        supportFragmentManager,
-                        GroupEditDialogFragment.TAG_CREATE_GROUP
-                    )
+                launchDialogForGroupUpdate(node as Group)
+            }
+            Type.ENTRY -> {
+                mGroupFragment?.mEntryActivityResultLauncher?.let { resultLauncher ->
+                    EntryEditActivity.launchToUpdate(
+                        this@GroupActivity,
+                        database,
+                        (node as Entry).nodeId,
+                        resultLauncher
+                    )
+                }
             }
-            Type.ENTRY -> EntryEditActivity.launchToUpdate(
-                this@GroupActivity,
-                database,
-                (node as Entry).nodeId
-            )
         }
         reloadGroupIfSearch()
         return true
     }
 
+    private fun launchDialogToShowGroupInfo(group: Group) {
+        GroupDialogFragment.launch(group.getGroupInfo())
+            .show(supportFragmentManager, GroupDialogFragment.TAG_SHOW_GROUP)
+    }
+
+    private fun launchDialogForGroupCreation(group: Group) {
+        GroupEditDialogFragment.create(GroupInfo().apply {
+            if (group.allowAddNoteInGroup) {
+                notes = ""
+            }
+        }).show(supportFragmentManager, GroupEditDialogFragment.TAG_CREATE_GROUP)
+    }
+
+    private fun launchDialogForGroupUpdate(group: Group) {
+        mOldGroupToUpdate = group
+        GroupEditDialogFragment.update(group.getGroupInfo())
+            .show(supportFragmentManager, GroupEditDialogFragment.TAG_CREATE_GROUP)
+    }
+
     override fun onCopyMenuClick(
         database: Database,
         nodes: List<Node>
@@ -888,10 +969,15 @@ class GroupActivity : DatabaseLockActivity(),
         inflater.inflate(R.menu.database, menu)
         if (mDatabaseReadOnly) {
             menu.findItem(R.id.menu_save_database)?.isVisible = false
+            menu.findItem(R.id.menu_merge_database)?.isVisible = false
+        }
+        if (!mMergeDataAllowed) {
+            menu.findItem(R.id.menu_merge_database)?.isVisible = false
         }
         if (mSpecialMode == SpecialMode.DEFAULT) {
             MenuUtil.defaultMenuInflater(inflater, menu)
         } else {
+            menu.findItem(R.id.menu_merge_database)?.isVisible = false
             menu.findItem(R.id.menu_reload_database)?.isVisible = false
         }
 
@@ -984,7 +1070,7 @@ class GroupActivity : DatabaseLockActivity(),
 
                 if (!sortMenuEducationPerformed) {
                     // lockMenuEducationPerformed
-                    val lockButtonView = findViewById<View>(R.id.lock_button_icon)
+                    val lockButtonView = findViewById<View>(R.id.lock_button)
                     lockButtonView != null
                             && groupActivityEducation.checkAndPerformedLockMenuEducation(
                         lockButtonView,
@@ -1002,7 +1088,7 @@ class GroupActivity : DatabaseLockActivity(),
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
             android.R.id.home -> {
-                onBackPressed()
+                // TODO change database
                 return true
             }
             R.id.menu_search ->
@@ -1012,6 +1098,10 @@ class GroupActivity : DatabaseLockActivity(),
                 saveDatabase()
                 return true
             }
+            R.id.menu_merge_database -> {
+                mergeDatabase()
+                return true
+            }
             R.id.menu_reload_database -> {
                 reloadDatabase()
                 return true
@@ -1057,37 +1147,6 @@ class GroupActivity : DatabaseLockActivity(),
         }
     }
 
-    override fun startActivityForResult(intent: Intent, requestCode: Int, options: Bundle?) {
-        /*
-         * ACTION_SEARCH automatically forces a new task. This occurs when you open a kdb file in
-         * another app such as Files or GoogleDrive and then Search for an entry. Here we remove the
-         * FLAG_ACTIVITY_NEW_TASK flag bit allowing search to open it's activity in the current task.
-         */
-        if (Intent.ACTION_SEARCH == intent.action) {
-            var flags = intent.flags
-            flags = flags and Intent.FLAG_ACTIVITY_NEW_TASK.inv()
-            intent.flags = flags
-        }
-
-        super.startActivityForResult(intent, requestCode, options)
-    }
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        // To create tree dialog for icon
-        IconPickerActivity.onActivityResult(requestCode, resultCode, data) { icon ->
-            mGroupEditViewModel.selectIcon(icon)
-        }
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data)
-        }
-
-        // Directly used the onActivityResult in fragment
-        mGroupFragment?.onActivityResult(requestCode, resultCode, data)
-    }
-
     private fun removeSearch() {
         intent.removeExtra(AUTO_SEARCH_KEY)
         if (Intent.ACTION_SEARCH == intent.action) {
@@ -1292,8 +1351,9 @@ class GroupActivity : DatabaseLockActivity(),
          * -------------------------
          */
         @RequiresApi(api = Build.VERSION_CODES.O)
-        fun launchForAutofillResult(activity: Activity,
+        fun launchForAutofillResult(activity: AppCompatActivity,
                                     database: Database,
+                                    activityResultLaunch: ActivityResultLauncher<Intent>?,
                                     autofillComponent: AutofillComponent,
                                     searchInfo: SearchInfo? = null,
                                     autoSearch: Boolean = false) {
@@ -1303,6 +1363,7 @@ class GroupActivity : DatabaseLockActivity(),
                     AutofillHelper.startActivityForAutofillResult(
                         activity,
                         intent,
+                        activityResultLaunch,
                         autofillComponent,
                         searchInfo
                     )
@@ -1335,11 +1396,12 @@ class GroupActivity : DatabaseLockActivity(),
          * 		Global Launch
          * -------------------------
          */
-        fun launch(activity: Activity,
+        fun launch(activity: AppCompatActivity,
                    database: Database,
                    onValidateSpecialMode: () -> Unit,
                    onCancelSpecialMode: () -> Unit,
-                   onLaunchActivitySpecialMode: () -> Unit) {
+                   onLaunchActivitySpecialMode: () -> Unit,
+                   autofillActivityResultLauncher: ActivityResultLauncher<Intent>?) {
             EntrySelectionHelper.doSpecialAction(activity.intent,
                     {
                         GroupActivity.launch(
@@ -1451,6 +1513,7 @@ class GroupActivity : DatabaseLockActivity(),
                                         // Here no search info found, disable auto search
                                         GroupActivity.launchForAutofillResult(activity,
                                             database,
+                                            autofillActivityResultLauncher,
                                             autofillComponent,
                                             searchInfo,
                                             false)

app/src/main/java/com/kunzisoft/keepass/activities/IconPickerActivity.kt

@@ -27,9 +27,12 @@ import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.activity.viewModels
 import androidx.appcompat.widget.Toolbar
 import androidx.coordinatorlayout.widget.CoordinatorLayout
+import androidx.fragment.app.FragmentActivity
 import androidx.fragment.app.commit
 import com.google.android.material.snackbar.Snackbar
 import com.kunzisoft.keepass.R
@@ -82,6 +85,9 @@ class IconPickerActivity : DatabaseLockActivity() {
         coordinatorLayout = findViewById(R.id.icon_picker_coordinator)
 
         mExternalFileHelper = ExternalFileHelper(this)
+        mExternalFileHelper?.buildOpenDocument { uri ->
+            addCustomIcon(uri)
+        }
 
         uploadButton = findViewById(R.id.icon_picker_upload)
 
@@ -309,14 +315,6 @@ class IconPickerActivity : DatabaseLockActivity() {
         )
     }
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        mExternalFileHelper?.onOpenDocumentResult(requestCode, resultCode, data) { uri ->
-            addCustomIcon(uri)
-        }
-    }
-
     private fun setResult() {
         setResult(Activity.RESULT_OK, Intent().apply {
             putExtra(EXTRA_ICON, mIconImage)
@@ -331,30 +329,28 @@ class IconPickerActivity : DatabaseLockActivity() {
     companion object {
 
         private const val ICON_PICKER_FRAGMENT_TAG = "ICON_PICKER_FRAGMENT_TAG"
-
-        private const val ICON_SELECTED_REQUEST = 15861
         private const val EXTRA_ICON = "EXTRA_ICON"
-
         private const val MAX_ICON_SIZE = 5242880
 
-        fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?, listener: (icon: IconImage) -> Unit) {
-            if (requestCode == ICON_SELECTED_REQUEST) {
-                if (resultCode == Activity.RESULT_OK) {
-                    listener.invoke(data?.getParcelableExtra(EXTRA_ICON) ?: IconImage())
+        fun registerIconSelectionForResult(context: FragmentActivity,
+                                           listener: (icon: IconImage) -> Unit): ActivityResultLauncher<Intent> {
+            return context.registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+                if (result.resultCode == Activity.RESULT_OK) {
+                    listener.invoke(result.data?.getParcelableExtra(EXTRA_ICON) ?: IconImage())
                 }
             }
         }
 
-        fun launch(context: Activity,
-                   previousIcon: IconImage?) {
+        fun launch(context: FragmentActivity,
+                   previousIcon: IconImage?,
+                   resultLauncher: ActivityResultLauncher<Intent>) {
             // Create an instance to return the picker icon
-            context.startActivityForResult(
-                    Intent(context,
-                    IconPickerActivity::class.java).apply {
+            resultLauncher.launch(
+                Intent(context, IconPickerActivity::class.java).apply {
                         if (previousIcon != null)
                             putExtra(EXTRA_ICON, previousIcon)
-                    },
-                    ICON_SELECTED_REQUEST)
+                    }
+            )
         }
     }
 }

app/src/main/java/com/kunzisoft/keepass/activities/PasswordActivity.kt

@@ -21,7 +21,6 @@ package com.kunzisoft.keepass.activities
 
 import android.app.Activity
 import android.content.Intent
-import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
@@ -35,12 +34,12 @@ import android.view.KeyEvent.KEYCODE_ENTER
 import android.view.inputmethod.EditorInfo.IME_ACTION_DONE
 import android.view.inputmethod.InputMethodManager
 import android.widget.*
-import android.widget.TextView.OnEditorActionListener
+import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.viewModels
 import androidx.annotation.RequiresApi
+import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.Toolbar
 import androidx.coordinatorlayout.widget.CoordinatorLayout
-import androidx.core.app.ActivityCompat
 import androidx.fragment.app.commit
 import com.google.android.material.snackbar.Snackbar
 import com.kunzisoft.keepass.R
@@ -71,11 +70,12 @@ import com.kunzisoft.keepass.utils.MenuUtil
 import com.kunzisoft.keepass.utils.UriUtil
 import com.kunzisoft.keepass.view.KeyFileSelectionView
 import com.kunzisoft.keepass.view.asError
+import com.kunzisoft.keepass.viewmodels.AdvancedUnlockViewModel
 import com.kunzisoft.keepass.viewmodels.DatabaseFileViewModel
 import java.io.FileNotFoundException
 
 
-open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderListener {
+class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.BuilderListener {
 
     // Views
     private var toolbar: Toolbar? = null
@@ -89,7 +89,8 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
     private lateinit var coordinatorLayout: CoordinatorLayout
     private var advancedUnlockFragment: AdvancedUnlockFragment? = null
 
-    private val databaseFileViewModel: DatabaseFileViewModel by viewModels()
+    private val mDatabaseFileViewModel: DatabaseFileViewModel by viewModels()
+    private val mAdvancedUnlockViewModel: AdvancedUnlockViewModel by viewModels()
 
     private var mDefaultDatabase: Boolean = false
     private var mDatabaseFileUri: Uri? = null
@@ -98,20 +99,13 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
     private var mRememberKeyFile: Boolean = false
     private var mExternalFileHelper: ExternalFileHelper? = null
 
-    private var mPermissionAsked = false
     private var mReadOnly: Boolean = false
     private var mForceReadOnly: Boolean = false
-        set(value) {
-            infoContainerView?.visibility = if (value) {
-                mReadOnly = true
-                View.VISIBLE
-            } else {
-                View.GONE
-            }
-            field = value
-        }
 
-    private var mAllowAutoOpenBiometricPrompt: Boolean = true
+    private var mAutofillActivityResultLauncher: ActivityResultLauncher<Intent>? =
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+            AutofillHelper.buildActivityResultLauncher(this)
+        else null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -133,7 +127,6 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         infoContainerView = findViewById(R.id.activity_password_info_container)
         coordinatorLayout = findViewById(R.id.activity_password_coordinator_layout)
 
-        mPermissionAsked = savedInstanceState?.getBoolean(KEY_PERMISSION_ASKED) ?: mPermissionAsked
         mReadOnly = if (savedInstanceState != null && savedInstanceState.containsKey(KEY_READ_ONLY)) {
             savedInstanceState.getBoolean(KEY_READ_ONLY)
         } else {
@@ -142,6 +135,12 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         mRememberKeyFile = PreferencesUtil.rememberKeyFileLocations(this)
 
         mExternalFileHelper = ExternalFileHelper(this@PasswordActivity)
+        mExternalFileHelper?.buildOpenDocument { uri ->
+            if (uri != null) {
+                mDatabaseKeyFileUri = uri
+                populateKeyFileTextView(uri)
+            }
+        }
         keyFileSelectionView?.setOpenDocumentClickListener(mExternalFileHelper)
 
         passwordView?.setOnEditorActionListener(onEditorActionListener)
@@ -170,9 +169,6 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         if (savedInstanceState?.containsKey(KEY_KEYFILE) == true) {
             mDatabaseKeyFileUri = UriUtil.parse(savedInstanceState.getString(KEY_KEYFILE))
         }
-        if (savedInstanceState?.containsKey(ALLOW_AUTO_OPEN_BIOMETRIC_PROMPT) == true) {
-            mAllowAutoOpenBiometricPrompt = savedInstanceState.getBoolean(ALLOW_AUTO_OPEN_BIOMETRIC_PROMPT)
-        }
 
         // Init Biometric elements
         advancedUnlockFragment = supportFragmentManager
@@ -188,21 +184,30 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
 
         // Listen password checkbox to init advanced unlock and confirmation button
         checkboxPasswordView?.setOnCheckedChangeListener { _, _ ->
-            advancedUnlockFragment?.checkUnlockAvailability()
+            mAdvancedUnlockViewModel.checkUnlockAvailability()
             enableOrNotTheConfirmationButton()
         }
 
         // Observe if default database
-        databaseFileViewModel.isDefaultDatabase.observe(this) { isDefaultDatabase ->
+        mDatabaseFileViewModel.isDefaultDatabase.observe(this) { isDefaultDatabase ->
             mDefaultDatabase = isDefaultDatabase
         }
 
         // Observe database file change
-        databaseFileViewModel.databaseFileLoaded.observe(this) { databaseFile ->
+        mDatabaseFileViewModel.databaseFileLoaded.observe(this) { databaseFile ->
+
             // Force read only if the file does not exists
-            mForceReadOnly = databaseFile?.let {
+            val databaseFileNotExists = databaseFile?.let {
                 !it.databaseFileExists
             } ?: true
+            infoContainerView?.visibility = if (databaseFileNotExists) {
+                mReadOnly = true
+                View.VISIBLE
+            } else {
+                View.GONE
+            }
+            mForceReadOnly = databaseFileNotExists
+
             invalidateOptionsMenu()
 
             // Post init uri with KeyFile only if needed
@@ -232,15 +237,13 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         }
 
         // Don't allow auto open prompt if lock become when UI visible
-        mAllowAutoOpenBiometricPrompt = if (DatabaseLockActivity.LOCKING_ACTIVITY_UI_VISIBLE_DURING_LOCK == true)
-            false
-        else
-            mAllowAutoOpenBiometricPrompt
-        mDatabaseFileUri?.let { databaseFileUri ->
-            databaseFileViewModel.loadDatabaseFile(databaseFileUri)
+        if (DatabaseLockActivity.LOCKING_ACTIVITY_UI_VISIBLE_DURING_LOCK == true) {
+            mAdvancedUnlockViewModel.allowAutoOpenBiometricPrompt = false
         }
 
-        checkPermission()
+        mDatabaseFileUri?.let { databaseFileUri ->
+            mDatabaseFileViewModel.loadDatabaseFile(databaseFileUri)
+        }
 
         mDatabase?.let { database ->
             launchGroupActivityIfLoaded(database)
@@ -263,7 +266,7 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         when (actionTask) {
             ACTION_DATABASE_LOAD_TASK -> {
                 // Recheck advanced unlock if error
-                advancedUnlockFragment?.initAdvancedUnlockMode()
+                mAdvancedUnlockViewModel.initAdvancedUnlockMode()
 
                 if (result.isSuccess) {
                     launchGroupActivityIfLoaded(database)
@@ -311,7 +314,7 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
                             is FileNotFoundDatabaseException -> {
                                 // Remove this default database inaccessible
                                 if (mDefaultDatabase) {
-                                    databaseFileViewModel.removeDefaultDatabase()
+                                    mDatabaseFileViewModel.removeDefaultDatabase()
                                 }
                             }
                         }
@@ -344,7 +347,7 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
             mDatabaseKeyFileUri = intent?.getParcelableExtra(KEY_KEYFILE)
         }
         mDatabaseFileUri?.let {
-            databaseFileViewModel.checkIfIsDefaultDatabase(it)
+            mDatabaseFileViewModel.checkIfIsDefaultDatabase(it)
         }
     }
 
@@ -361,7 +364,8 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
                 database,
                 { onValidateSpecialMode() },
                 { onCancelSpecialMode() },
-                { onLaunchActivitySpecialMode() }
+                { onLaunchActivitySpecialMode() },
+                mAutofillActivityResultLauncher
             )
         }
     }
@@ -435,8 +439,7 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
             verifyCheckboxesAndLoadDatabase(password, keyFileUri)
         } else {
             // Init Biometric elements
-            advancedUnlockFragment?.loadDatabase(databaseFileUri,
-                    mAllowAutoOpenBiometricPrompt)
+            mAdvancedUnlockViewModel.databaseFileLoaded(databaseFileUri)
         }
 
         enableOrNotTheConfirmationButton()
@@ -496,18 +499,15 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
     override fun onPause() {
         // Reinit locking activity UI variable
         DatabaseLockActivity.LOCKING_ACTIVITY_UI_VISIBLE_DURING_LOCK = null
-        mAllowAutoOpenBiometricPrompt = true
 
         super.onPause()
     }
 
     override fun onSaveInstanceState(outState: Bundle) {
-        outState.putBoolean(KEY_PERMISSION_ASKED, mPermissionAsked)
         mDatabaseKeyFileUri?.let {
             outState.putString(KEY_KEYFILE, it.toString())
         }
         outState.putBoolean(KEY_READ_ONLY, mReadOnly)
-        outState.putBoolean(ALLOW_AUTO_OPEN_BIOMETRIC_PROMPT, false)
         super.onSaveInstanceState(outState)
     }
 
@@ -606,35 +606,6 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         return true
     }
 
-    // Check permission
-    private fun checkPermission() {
-        if (Build.VERSION.SDK_INT in 23..28
-                && !mReadOnly
-                && !mPermissionAsked) {
-            mPermissionAsked = true
-            // Check self permission to show or not the dialog
-            val writePermission = android.Manifest.permission.WRITE_EXTERNAL_STORAGE
-            val permissions = arrayOf(writePermission)
-            if (toolbar != null
-                    && ActivityCompat.checkSelfPermission(this, writePermission) != PackageManager.PERMISSION_GRANTED) {
-                ActivityCompat.requestPermissions(this, permissions, WRITE_EXTERNAL_STORAGE_REQUEST)
-            }
-        }
-    }
-
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
-
-        when (requestCode) {
-            WRITE_EXTERNAL_STORAGE_REQUEST -> {
-                if (grantResults.isEmpty() || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
-                    if (ActivityCompat.shouldShowRequestPermissionRationale(this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE))
-                        Toast.makeText(this, R.string.read_only_warning, Toast.LENGTH_LONG).show()
-                }
-            }
-        }
-    }
-
     // To fix multiple view education
     private var performedEductionInProgress = false
     private fun launchEducation(menu: Menu) {
@@ -709,45 +680,6 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         return super.onOptionsItemSelected(item)
     }
 
-    override fun onActivityResult(
-            requestCode: Int,
-            resultCode: Int,
-            data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        mAllowAutoOpenBiometricPrompt = false
-
-        // To get device credential unlock result
-        advancedUnlockFragment?.onActivityResult(requestCode, resultCode, data)
-
-        // To get entry in result
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data)
-        }
-
-        var keyFileResult = false
-        mExternalFileHelper?.let {
-            keyFileResult = it.onOpenDocumentResult(requestCode, resultCode, data) { uri ->
-                if (uri != null) {
-                    mDatabaseKeyFileUri = uri
-                    populateKeyFileTextView(uri)
-                }
-            }
-        }
-        if (!keyFileResult) {
-            // this block if not a key file response
-            when (resultCode) {
-                DatabaseLockActivity.RESULT_EXIT_LOCK -> {
-                    clearCredentialsViews()
-                    closeDatabase()
-                }
-                Activity.RESULT_CANCELED -> {
-                    clearCredentialsViews()
-                }
-            }
-        }
-    }
-
     companion object {
 
         private val TAG = PasswordActivity::class.java.name
@@ -761,10 +693,6 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
         private const val KEY_READ_ONLY = "KEY_READ_ONLY"
         private const val KEY_PASSWORD = "password"
         private const val KEY_LAUNCH_IMMEDIATELY = "launchImmediately"
-        private const val KEY_PERMISSION_ASKED = "KEY_PERMISSION_ASKED"
-        private const val WRITE_EXTERNAL_STORAGE_REQUEST = 647
-
-        private const val ALLOW_AUTO_OPEN_BIOMETRIC_PROMPT = "ALLOW_AUTO_OPEN_BIOMETRIC_PROMPT"
 
         private fun buildAndLaunchIntent(activity: Activity, databaseFile: Uri, keyFile: Uri?,
                                          intentBuildLauncher: (Intent) -> Unit) {
@@ -855,15 +783,17 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
 
         @RequiresApi(api = Build.VERSION_CODES.O)
         @Throws(FileNotFoundException::class)
-        fun launchForAutofillResult(activity: Activity,
+        fun launchForAutofillResult(activity: AppCompatActivity,
                                     databaseFile: Uri,
                                     keyFile: Uri?,
+                                    activityResultLauncher: ActivityResultLauncher<Intent>?,
                                     autofillComponent: AutofillComponent,
                                     searchInfo: SearchInfo?) {
             buildAndLaunchIntent(activity, databaseFile, keyFile) { intent ->
                 AutofillHelper.startActivityForAutofillResult(
                         activity,
                         intent,
+                        activityResultLauncher,
                         autofillComponent,
                         searchInfo)
             }
@@ -891,12 +821,13 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
          * 		Global Launch
          * -------------------------
          */
-        fun launch(activity: Activity,
+        fun launch(activity: AppCompatActivity,
                    databaseUri: Uri,
                    keyFile: Uri?,
                    fileNoFoundAction: (exception: FileNotFoundException) -> Unit,
                    onCancelSpecialMode: () -> Unit,
-                   onLaunchActivitySpecialMode: () -> Unit) {
+                   onLaunchActivitySpecialMode: () -> Unit,
+                   autofillActivityResultLauncher: ActivityResultLauncher<Intent>?) {
 
             try {
                 EntrySelectionHelper.doSpecialAction(activity.intent,
@@ -926,6 +857,7 @@ open class PasswordActivity : DatabaseModeActivity(), AdvancedUnlockFragment.Bui
                             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                                 PasswordActivity.launchForAutofillResult(activity,
                                         databaseUri, keyFile,
+                                        autofillActivityResultLauncher,
                                         autofillComponent,
                                         searchInfo)
                                 onLaunchActivitySpecialMode()

app/src/main/java/com/kunzisoft/keepass/activities/dialogs/AssignMasterKeyDialogFragment.kt

@@ -22,7 +22,6 @@ package com.kunzisoft.keepass.activities.dialogs
 import android.app.Dialog
 import android.content.Context
 import android.content.DialogInterface
-import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
 import android.text.Editable
@@ -133,6 +132,18 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
             keyFileSelectionView = rootView?.findViewById(R.id.keyfile_selection)
 
             mExternalFileHelper = ExternalFileHelper(this)
+            mExternalFileHelper?.buildOpenDocument { uri ->
+                uri?.let { pathUri ->
+                    UriUtil.getFileData(requireContext(), uri)?.length()?.let { lengthFile ->
+                        keyFileSelectionView?.error = null
+                        keyFileCheckBox?.isChecked = true
+                        keyFileSelectionView?.uri = pathUri
+                        if (lengthFile <= 0L) {
+                            showEmptyKeyFileConfirmationDialog()
+                        }
+                    }
+                }
+            }
             keyFileSelectionView?.setOpenDocumentClickListener(mExternalFileHelper)
 
             val dialog = builder.create()
@@ -208,7 +219,11 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
                 passwordRepeatTextInputLayout?.error = getString(R.string.error_pass_match)
             }
 
-            if (mMasterPassword == null || mMasterPassword!!.isEmpty()) {
+            if ((mMasterPassword == null
+                        || mMasterPassword!!.isEmpty())
+                && (keyFileCheckBox == null
+                        || !keyFileCheckBox!!.isChecked
+                        || keyFileSelectionView?.uri == null)) {
                 error = true
                 showEmptyPasswordConfirmationDialog()
             }
@@ -282,23 +297,6 @@ class AssignMasterKeyDialogFragment : DatabaseDialogFragment() {
         }
     }
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        mExternalFileHelper?.onOpenDocumentResult(requestCode, resultCode, data) { uri ->
-            uri?.let { pathUri ->
-                UriUtil.getFileData(requireContext(), uri)?.length()?.let { lengthFile ->
-                    keyFileSelectionView?.error = null
-                    keyFileCheckBox?.isChecked = true
-                    keyFileSelectionView?.uri = pathUri
-                    if (lengthFile <= 0L) {
-                        showEmptyKeyFileConfirmationDialog()
-                    }
-                }
-            }
-        }
-    }
-
     companion object {
 
         private const val ALLOW_NO_MASTER_KEY_ARG = "ALLOW_NO_MASTER_KEY_ARG"

app/src/main/java/com/kunzisoft/keepass/activities/dialogs/ColorPickerDialogFragment.kt

@@ -0,0 +1,95 @@
+package com.kunzisoft.keepass.activities.dialogs
+
+import android.app.Dialog
+import android.graphics.Color
+import android.os.Bundle
+import android.widget.CompoundButton
+import androidx.annotation.ColorInt
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.activityViewModels
+import com.kunzisoft.androidclearchroma.view.ChromaColorView
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.viewmodels.ColorPickerViewModel
+
+class ColorPickerDialogFragment : DatabaseDialogFragment() {
+
+    private val mColorPickerViewModel: ColorPickerViewModel by activityViewModels()
+
+    private lateinit var enableSwitchView: CompoundButton
+    private lateinit var chromaColorView: ChromaColorView
+
+    private var mDefaultColor = Color.WHITE
+    private var mActivated = false
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+
+        activity?.let { activity ->
+            val root = activity.layoutInflater.inflate(R.layout.fragment_color_picker, null)
+            enableSwitchView = root.findViewById(R.id.switch_element)
+            chromaColorView = root.findViewById(R.id.chroma_color_view)
+
+            if (savedInstanceState != null) {
+                if (savedInstanceState.containsKey(ARG_INITIAL_COLOR)) {
+                    mDefaultColor = savedInstanceState.getInt(ARG_INITIAL_COLOR)
+                }
+                if (savedInstanceState.containsKey(ARG_ACTIVATED)) {
+                    mActivated = savedInstanceState.getBoolean(ARG_ACTIVATED)
+                }
+            } else {
+                arguments?.apply {
+                    if (containsKey(ARG_INITIAL_COLOR)) {
+                        mDefaultColor = getInt(ARG_INITIAL_COLOR)
+                    }
+                    if (containsKey(ARG_ACTIVATED)) {
+                        mActivated = getBoolean(ARG_ACTIVATED)
+                    }
+                }
+            }
+            enableSwitchView.isChecked = mActivated
+            chromaColorView.currentColor = mDefaultColor
+
+            chromaColorView.setOnColorChangedListener {
+                if (!enableSwitchView.isChecked)
+                    enableSwitchView.isChecked = true
+            }
+
+            val builder = AlertDialog.Builder(activity)
+            builder.setView(root)
+                .setPositiveButton(android.R.string.ok) { _, _ ->
+                    val color: Int? = if (enableSwitchView.isChecked)
+                        chromaColorView.currentColor
+                    else
+                        null
+                    mColorPickerViewModel.pickColor(color)
+                }
+                .setNegativeButton(android.R.string.cancel) { _, _ ->
+                    // Do nothing
+                }
+
+            return builder.create()
+        }
+        return super.onCreateDialog(savedInstanceState)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putInt(ARG_INITIAL_COLOR, chromaColorView.currentColor)
+        outState.putBoolean(ARG_ACTIVATED, mActivated)
+    }
+
+    companion object {
+        private const val ARG_INITIAL_COLOR = "ARG_INITIAL_COLOR"
+        private const val ARG_ACTIVATED = "ARG_ACTIVATED"
+
+        fun newInstance(
+            @ColorInt initialColor: Int?,
+        ): ColorPickerDialogFragment {
+            return ColorPickerDialogFragment().apply {
+                arguments = Bundle().apply {
+                    putInt(ARG_INITIAL_COLOR, initialColor ?: Color.WHITE)
+                    putBoolean(ARG_ACTIVATED, initialColor != null)
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/kunzisoft/keepass/activities/dialogs/DatabaseDialogFragment.kt

@@ -29,6 +29,7 @@ abstract class DatabaseDialogFragment : DialogFragment(), DatabaseRetrieval {
         }
     }
 
+    @Suppress("DEPRECATION")
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
 

app/src/main/java/com/kunzisoft/keepass/activities/dialogs/GroupDialogFragment.kt

@@ -0,0 +1,151 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.activities.dialogs
+
+import android.app.Dialog
+import android.graphics.Color
+import android.os.Bundle
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.appcompat.app.AlertDialog
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.database.element.Database
+import com.kunzisoft.keepass.database.element.icon.IconImage
+import com.kunzisoft.keepass.model.GroupInfo
+import com.kunzisoft.keepass.settings.PreferencesUtil
+import com.kunzisoft.keepass.utils.UuidUtil
+import com.kunzisoft.keepass.view.DateTimeFieldView
+
+class GroupDialogFragment : DatabaseDialogFragment() {
+
+    private var mPopulateIconMethod: ((ImageView, IconImage) -> Unit)? = null
+    private var mGroupInfo = GroupInfo()
+
+    private lateinit var iconView: ImageView
+    private var mIconColor: Int = 0
+    private lateinit var nameTextView: TextView
+    private lateinit var notesTextLabelView: TextView
+    private lateinit var notesTextView: TextView
+    private lateinit var expirationView: DateTimeFieldView
+    private lateinit var creationView: TextView
+    private lateinit var modificationView: TextView
+    private lateinit var uuidContainerView: ViewGroup
+    private lateinit var uuidReferenceView: TextView
+
+    override fun onDatabaseRetrieved(database: Database?) {
+        super.onDatabaseRetrieved(database)
+        mPopulateIconMethod = { imageView, icon ->
+            database?.iconDrawableFactory?.assignDatabaseIcon(imageView, icon, mIconColor)
+        }
+        mPopulateIconMethod?.invoke(iconView, mGroupInfo.icon)
+    }
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        activity?.let { activity ->
+            val root = activity.layoutInflater.inflate(R.layout.fragment_group, null)
+            iconView = root.findViewById(R.id.group_icon)
+            nameTextView = root.findViewById(R.id.group_name)
+            notesTextLabelView = root.findViewById(R.id.group_note_label)
+            notesTextView = root.findViewById(R.id.group_note)
+            expirationView = root.findViewById(R.id.group_expiration)
+            creationView = root.findViewById(R.id.group_created)
+            modificationView = root.findViewById(R.id.group_modified)
+            uuidContainerView = root.findViewById(R.id.group_UUID_container)
+            uuidReferenceView = root.findViewById(R.id.group_UUID_reference)
+
+            // Retrieve the textColor to tint the icon
+            val ta = activity.theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccent))
+            mIconColor = ta.getColor(0, Color.WHITE)
+            ta.recycle()
+
+            if (savedInstanceState != null
+                    && savedInstanceState.containsKey(KEY_GROUP_INFO)) {
+                mGroupInfo = savedInstanceState.getParcelable(KEY_GROUP_INFO) ?: mGroupInfo
+            } else {
+                arguments?.apply {
+                    if (containsKey(KEY_GROUP_INFO)) {
+                        mGroupInfo = getParcelable(KEY_GROUP_INFO) ?: mGroupInfo
+                    }
+                }
+            }
+
+            // populate info in views
+            val title = mGroupInfo.title
+            if (title.isEmpty()) {
+                nameTextView.visibility = View.GONE
+            } else {
+                nameTextView.text = title
+                nameTextView.visibility = View.VISIBLE
+            }
+            val notes = mGroupInfo.notes
+            if (notes == null || notes.isEmpty()) {
+                notesTextLabelView.visibility = View.GONE
+                notesTextView.visibility = View.GONE
+            } else {
+                notesTextView.text = notes
+                notesTextLabelView.visibility = View.VISIBLE
+                notesTextView.visibility = View.VISIBLE
+            }
+            expirationView.activation = mGroupInfo.expires
+            expirationView.dateTime = mGroupInfo.expiryTime
+            creationView.text = mGroupInfo.creationTime.getDateTimeString(resources)
+            modificationView.text = mGroupInfo.lastModificationTime.getDateTimeString(resources)
+            val uuid = UuidUtil.toHexString(mGroupInfo.id)
+            if (uuid == null || uuid.isEmpty()) {
+                uuidContainerView.visibility = View.GONE
+            } else {
+                uuidReferenceView.text = uuid
+                uuidContainerView.apply {
+                    visibility = if (PreferencesUtil.showUUID(context)) View.VISIBLE else View.GONE
+                }
+            }
+
+            val builder = AlertDialog.Builder(activity)
+            builder.setView(root)
+                    .setPositiveButton(android.R.string.ok){ _, _ ->
+                        // Do nothing
+                    }
+            return builder.create()
+        }
+        return super.onCreateDialog(savedInstanceState)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        outState.putParcelable(KEY_GROUP_INFO, mGroupInfo)
+        super.onSaveInstanceState(outState)
+    }
+
+    data class Error(val isError: Boolean, val messageId: Int?)
+
+    companion object {
+        const val TAG_SHOW_GROUP = "TAG_SHOW_GROUP"
+        private const val KEY_GROUP_INFO = "KEY_GROUP_INFO"
+
+        fun launch(groupInfo: GroupInfo): GroupDialogFragment {
+            val bundle = Bundle()
+            bundle.putParcelable(KEY_GROUP_INFO, groupInfo)
+            val fragment = GroupDialogFragment()
+            fragment.arguments = bundle
+            return fragment
+        }
+    }
+}

app/src/main/java/com/kunzisoft/keepass/activities/dialogs/GroupEditDialogFragment.kt

@@ -246,8 +246,8 @@ class GroupEditDialogFragment : DatabaseDialogFragment() {
     companion object {
 
         const val TAG_CREATE_GROUP = "TAG_CREATE_GROUP"
-        const val KEY_ACTION_ID = "KEY_ACTION_ID"
-        const val KEY_GROUP_INFO = "KEY_GROUP_INFO"
+        private const val KEY_ACTION_ID = "KEY_ACTION_ID"
+        private const val KEY_GROUP_INFO = "KEY_GROUP_INFO"
 
         fun create(groupInfo: GroupInfo): GroupEditDialogFragment {
             val bundle = Bundle()

app/src/main/java/com/kunzisoft/keepass/activities/dialogs/SetOTPDialogFragment.kt

@@ -309,7 +309,7 @@ class SetOTPDialogFragment : DatabaseDialogFragment() {
             override fun afterTextChanged(s: Editable?) {
                 s?.toString()?.let { userString ->
                     try {
-                        mOtpElement.setBase32Secret(userString.toUpperCase(Locale.ENGLISH))
+                        mOtpElement.setBase32Secret(userString.uppercase(Locale.ENGLISH))
                         otpSecretContainer?.error = null
                     } catch (exception: Exception) {
                         otpSecretContainer?.error = getString(R.string.error_otp_secret_key)

app/src/main/java/com/kunzisoft/keepass/activities/fragments/EntryEditFragment.kt

@@ -109,6 +109,12 @@ class EntryEditFragment: DatabaseFragment() {
             setOnIconClickListener {
                 mEntryEditViewModel.requestIconSelection(templateView.getIcon())
             }
+            setOnBackgroundColorClickListener {
+                mEntryEditViewModel.requestBackgroundColorSelection(templateView.getBackgroundColor())
+            }
+            setOnForegroundColorClickListener {
+                mEntryEditViewModel.requestForegroundColorSelection(templateView.getForegroundColor())
+            }
             setOnCustomEditionActionClickListener { field ->
                 mEntryEditViewModel.requestCustomFieldEdition(field)
             }
@@ -158,6 +164,14 @@ class EntryEditFragment: DatabaseFragment() {
             templateView.setIcon(iconImage)
         }
 
+        mEntryEditViewModel.onBackgroundColorSelected.observe(this) { color ->
+            templateView.setBackgroundColor(color)
+        }
+
+        mEntryEditViewModel.onForegroundColorSelected.observe(this) { color ->
+            templateView.setForegroundColor(color)
+        }
+
         mEntryEditViewModel.onPasswordSelected.observe(viewLifecycleOwner) { passwordField ->
             templateView.setPasswordField(passwordField)
         }

app/src/main/java/com/kunzisoft/keepass/activities/fragments/EntryFragment.kt

@@ -42,7 +42,6 @@ class EntryFragment: DatabaseFragment() {
     private var attachmentsAdapter: EntryAttachmentsItemsAdapter? = null
 
     private lateinit var uuidContainerView: View
-    private lateinit var uuidView: TextView
     private lateinit var uuidReferenceView: TextView
 
     private var mClipboardHelper: ClipboardHelper? = null
@@ -88,7 +87,6 @@ class EntryFragment: DatabaseFragment() {
         uuidContainerView.apply {
             visibility = if (PreferencesUtil.showUUID(context)) View.VISIBLE else View.GONE
         }
-        uuidView = view.findViewById(R.id.entry_UUID)
         uuidReferenceView = view.findViewById(R.id.entry_UUID_reference)
 
         mEntryViewModel.entryInfoHistory.observe(viewLifecycleOwner) { entryInfoHistory ->
@@ -200,7 +198,6 @@ class EntryFragment: DatabaseFragment() {
     }
 
     private fun assignUUID(uuid: UUID?) {
-        uuidView.text = uuid?.toString()
         uuidReferenceView.text = UuidUtil.toHexString(uuid)
     }
 

app/src/main/java/com/kunzisoft/keepass/activities/fragments/GroupFragment.kt

@@ -20,7 +20,6 @@
 package com.kunzisoft.keepass.activities.fragments
 
 import android.content.Context
-import android.content.Intent
 import android.os.Bundle
 import android.util.Log
 import android.view.*
@@ -34,12 +33,11 @@ import com.kunzisoft.keepass.activities.EntryEditActivity
 import com.kunzisoft.keepass.activities.dialogs.SortDialogFragment
 import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
-import com.kunzisoft.keepass.adapters.NodeAdapter
+import com.kunzisoft.keepass.adapters.NodesAdapter
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.Group
 import com.kunzisoft.keepass.database.element.SortNodeEnum
 import com.kunzisoft.keepass.database.element.node.Node
-import com.kunzisoft.keepass.database.element.node.NodeId
 import com.kunzisoft.keepass.database.element.node.Type
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.tasks.ActionRunnable
@@ -50,10 +48,11 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
 
     private var nodeClickListener: NodeClickListener? = null
     private var onScrollListener: OnScrollListener? = null
+    private var groupRefreshed: GroupRefreshedListener? = null
 
     private var mNodesRecyclerView: RecyclerView? = null
     private var mLayoutManager: LinearLayoutManager? = null
-    private var mAdapter: NodeAdapter? = null
+    private var mAdapter: NodesAdapter? = null
 
     private val mGroupViewModel: GroupViewModel by activityViewModels()
 
@@ -74,6 +73,19 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
     private var mRecycleBinEnable: Boolean = false
     private var mRecycleBin: Group? = null
 
+    var mEntryActivityResultLauncher = EntryEditActivity.registerForEntryResult(this) { entryId ->
+        entryId?.let {
+            // Simply refresh the list
+            rebuildList()
+            // Scroll to the new entry
+            mDatabase?.getEntryById(it)?.let { entry ->
+                mAdapter?.indexOf(entry)?.let { position ->
+                    mNodesRecyclerView?.scrollToPosition(position)
+                }
+            }
+        } ?: Log.e(this.javaClass.name, "Entry cannot be retrieved in Activity Result")
+    }
+
     private var mRecycleViewScrollListener = object : RecyclerView.OnScrollListener() {
         override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
             super.onScrollStateChanged(recyclerView, newState)
@@ -89,12 +101,14 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
 
     override fun onAttach(context: Context) {
         super.onAttach(context)
+
+        // TODO Change to ViewModel
         try {
             nodeClickListener = context as NodeClickListener
         } catch (e: ClassCastException) {
             // The activity doesn't implement the interface, throw exception
             throw ClassCastException(context.toString()
-                    + " must implement " + NodeAdapter.NodeClickCallback::class.java.name)
+                    + " must implement " + NodesAdapter.NodeClickCallback::class.java.name)
         }
 
         try {
@@ -102,14 +116,24 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         } catch (e: ClassCastException) {
             onScrollListener = null
             // Context menu can be omit
-            Log.w(TAG, context.toString()
+            Log.w(
+                TAG, context.toString()
                     + " must implement " + RecyclerView.OnScrollListener::class.java.name)
         }
+
+        try {
+            groupRefreshed = context as GroupRefreshedListener
+        } catch (e: ClassCastException) {
+            // The activity doesn't implement the interface, throw exception
+            throw ClassCastException(context.toString()
+                    + " must implement " + GroupRefreshedListener::class.java.name)
+        }
     }
 
     override fun onDetach() {
         nodeClickListener = null
         onScrollListener = null
+        groupRefreshed = null
         super.onDetach()
     }
 
@@ -125,8 +149,8 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
 
         contextThemed?.let { context ->
             database?.let { database ->
-                mAdapter = NodeAdapter(context, database).apply {
-                    setOnNodeClickListener(object : NodeAdapter.NodeClickCallback {
+                mAdapter = NodesAdapter(context, database).apply {
+                    setOnNodeClickListener(object : NodesAdapter.NodeClickCallback {
                         override fun onNodeClick(database: Database, node: Node) {
                             if (nodeActionSelectionMode) {
                                 if (listActionNodes.contains(node)) {
@@ -182,7 +206,7 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         super.onCreateView(inflater, container, savedInstanceState)
         // To apply theme
         return inflater.cloneInContext(contextThemed)
-                .inflate(R.layout.fragment_group, container, false)
+                .inflate(R.layout.fragment_nodes, container, false)
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -247,6 +271,8 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         } else {
             notFoundView?.visibility = View.GONE
         }
+
+        groupRefreshed?.onGroupRefreshed()
     }
 
     override fun onSortSelected(sortNodeEnum: SortNodeEnum,
@@ -279,15 +305,17 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
                     val sortDialogFragment: SortDialogFragment =
                             if (mRecycleBinEnable) {
                                 SortDialogFragment.getInstance(
-                                        PreferencesUtil.getListSort(context),
-                                        PreferencesUtil.getAscendingSort(context),
-                                        PreferencesUtil.getGroupsBeforeSort(context),
-                                        PreferencesUtil.getRecycleBinBottomSort(context))
+                                    PreferencesUtil.getListSort(context),
+                                    PreferencesUtil.getAscendingSort(context),
+                                    PreferencesUtil.getGroupsBeforeSort(context),
+                                    PreferencesUtil.getRecycleBinBottomSort(context)
+                                )
                             } else {
                                 SortDialogFragment.getInstance(
-                                        PreferencesUtil.getListSort(context),
-                                        PreferencesUtil.getAscendingSort(context),
-                                        PreferencesUtil.getGroupsBeforeSort(context))
+                                    PreferencesUtil.getListSort(context),
+                                    PreferencesUtil.getAscendingSort(context),
+                                    PreferencesUtil.getGroupsBeforeSort(context)
+                                )
                             }
 
                     sortDialogFragment.show(childFragmentManager, "sortDialog")
@@ -399,27 +427,6 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         }
     }
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-
-        when (requestCode) {
-            EntryEditActivity.ADD_OR_UPDATE_ENTRY_REQUEST_CODE -> {
-                if (resultCode == EntryEditActivity.ADD_OR_UPDATE_ENTRY_RESULT_CODE) {
-                    data?.getParcelableExtra<NodeId<UUID>>(EntryEditActivity.ADD_OR_UPDATE_ENTRY_KEY)?.let {
-                        // Simply refresh the list
-                        rebuildList()
-                        // Scroll to the new entry
-                        mDatabase?.getEntryById(it)?.let { entry ->
-                            mAdapter?.indexOf(entry)?.let { position ->
-                                mNodesRecyclerView?.scrollToPosition(position)
-                            }
-                        }
-                    } ?: Log.e(this.javaClass.name, "Entry cannot be retrieved in Activity Result")
-                }
-            }
-        }
-    }
-
     /**
      * Callback listener to redefine to do an action when a node is click
      */
@@ -455,6 +462,10 @@ class GroupFragment : DatabaseFragment(), SortDialogFragment.SortSelectionListen
         fun onScrolled(dy: Int)
     }
 
+    interface GroupRefreshedListener {
+        fun onGroupRefreshed()
+    }
+
     companion object {
         private val TAG = GroupFragment::class.java.name
     }

app/src/main/java/com/kunzisoft/keepass/activities/helpers/ExternalFileHelper.kt

@@ -20,14 +20,16 @@
 package com.kunzisoft.keepass.activities.helpers
 
 import android.annotation.SuppressLint
-import android.app.Activity.RESULT_OK
+import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Build
 import android.util.Log
 import android.view.View
-import androidx.annotation.RequiresApi
+import androidx.activity.result.ActivityResultCallback
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentActivity
 import com.kunzisoft.keepass.activities.dialogs.FileManagerDialogFragment
@@ -38,6 +40,10 @@ class ExternalFileHelper {
     private var activity: FragmentActivity? = null
     private var fragment: Fragment? = null
 
+    private var getContentResultLauncher: ActivityResultLauncher<String>? = null
+    private var openDocumentResultLauncher: ActivityResultLauncher<Array<String>>? = null
+    private var createDocumentResultLauncher: ActivityResultLauncher<String>? = null
+
     constructor(context: FragmentActivity) {
         this.activity = context
         this.fragment = null
@@ -48,94 +54,81 @@ class ExternalFileHelper {
         this.fragment = context
     }
 
+    fun buildOpenDocument(onFileSelected: ((uri: Uri?) -> Unit)?) {
+
+        val resultCallback = ActivityResultCallback<Uri> { result ->
+            result?.let { uri ->
+                UriUtil.takeUriPermission(activity?.contentResolver, uri)
+                onFileSelected?.invoke(uri)
+            }
+        }
+
+        getContentResultLauncher = if (fragment != null) {
+            fragment?.registerForActivityResult(
+                GetContent(),
+                resultCallback
+            )
+        } else {
+            activity?.registerForActivityResult(
+                GetContent(),
+                resultCallback
+            )
+        }
+
+        openDocumentResultLauncher = if (fragment != null) {
+            fragment?.registerForActivityResult(
+                OpenDocument(),
+                resultCallback
+            )
+        } else {
+            activity?.registerForActivityResult(
+                OpenDocument(),
+                resultCallback
+            )
+        }
+    }
+
+    fun buildCreateDocument(typeString: String = "application/octet-stream",
+                            onFileCreated: (fileCreated: Uri?)->Unit) {
+
+        val resultCallback = ActivityResultCallback<Uri> { result ->
+            onFileCreated.invoke(result)
+        }
+
+        createDocumentResultLauncher = if (fragment != null) {
+            fragment?.registerForActivityResult(
+                CreateDocument(typeString),
+                resultCallback
+            )
+        } else {
+            activity?.registerForActivityResult(
+                CreateDocument(typeString),
+                resultCallback
+            )
+        }
+    }
+
     fun openDocument(getContent: Boolean = false,
                      typeString: String = "*/*") {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-            try {
-                if (getContent) {
-                    openActivityWithActionGetContent(typeString)
-                } else {
-                    openActivityWithActionOpenDocument(typeString)
-                }
-            } catch (e: Exception) {
-                Log.e(TAG, "Unable to open document", e)
-                showFileManagerDialogFragment()
+        try {
+            if (getContent) {
+                getContentResultLauncher?.launch(typeString)
+            } else {
+                openDocumentResultLauncher?.launch(arrayOf(typeString))
             }
-        } else {
+        } catch (e: Exception) {
+            Log.e(TAG, "Unable to open document", e)
             showFileManagerDialogFragment()
         }
     }
 
-    @RequiresApi(Build.VERSION_CODES.KITKAT)
-    private fun openActivityWithActionOpenDocument(typeString: String) {
-        val intentOpenDocument = Intent(Intent.ACTION_OPEN_DOCUMENT).apply {
-            addCategory(Intent.CATEGORY_OPENABLE)
-            type = typeString
-            addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION)
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                addFlags(Intent.FLAG_GRANT_PREFIX_URI_PERMISSION)
-            }
-            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-            addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
+    fun createDocument(titleString: String) {
+        try {
+            createDocumentResultLauncher?.launch(titleString)
+        } catch (e: Exception) {
+            Log.e(TAG, "Unable to create document", e)
+            showFileManagerDialogFragment()
         }
-        if (fragment != null)
-            fragment?.startActivityForResult(intentOpenDocument, OPEN_DOC)
-        else
-            activity?.startActivityForResult(intentOpenDocument, OPEN_DOC)
-    }
-
-    @RequiresApi(Build.VERSION_CODES.KITKAT)
-    private fun openActivityWithActionGetContent(typeString: String) {
-        val intentGetContent = Intent(Intent.ACTION_GET_CONTENT).apply {
-            addCategory(Intent.CATEGORY_OPENABLE)
-            type = typeString
-            addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION)
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                addFlags(Intent.FLAG_GRANT_PREFIX_URI_PERMISSION)
-            }
-            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-            addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
-        }
-        if (fragment != null)
-            fragment?.startActivityForResult(intentGetContent, GET_CONTENT)
-        else
-            activity?.startActivityForResult(intentGetContent, GET_CONTENT)
-    }
-
-    /**
-     * To use in onActivityResultCallback in Fragment or Activity
-     * @param onFileSelected Callback retrieve from data
-     * @return true if requestCode was captured, false elsewhere
-     */
-    fun onOpenDocumentResult(requestCode: Int, resultCode: Int, data: Intent?,
-                             onFileSelected: ((uri: Uri?) -> Unit)?): Boolean {
-
-        when (requestCode) {
-            FILE_BROWSE -> {
-                if (resultCode == RESULT_OK) {
-                    val filename = data?.dataString
-                    var keyUri: Uri? = null
-                    if (filename != null) {
-                        keyUri = UriUtil.parse(filename)
-                    }
-                    onFileSelected?.invoke(keyUri)
-                }
-                return true
-            }
-            GET_CONTENT, OPEN_DOC -> {
-                if (resultCode == RESULT_OK) {
-                    if (data != null) {
-                        val uri = data.data
-                        if (uri != null) {
-                            UriUtil.takeUriPermission(activity?.contentResolver, uri)
-                            onFileSelected?.invoke(uri)
-                        }
-                    }
-                }
-                return true
-            }
-        }
-        return false
     }
 
     /**
@@ -155,62 +148,50 @@ class ExternalFileHelper {
         }
     }
 
-    fun createDocument(titleString: String,
-                       typeString: String = "application/octet-stream"): Int? {
-        val idCode = getUnusedCreateFileRequestCode()
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-            try {
-                val intent = Intent(Intent.ACTION_CREATE_DOCUMENT).apply {
-                    addCategory(Intent.CATEGORY_OPENABLE)
-                    type = typeString
-                    putExtra(Intent.EXTRA_TITLE, titleString)
+    class OpenDocument : ActivityResultContracts.OpenDocument() {
+        @SuppressLint("InlinedApi")
+        override fun createIntent(context: Context, input: Array<out String>): Intent {
+            return super.createIntent(context, input).apply {
+                addCategory(Intent.CATEGORY_OPENABLE)
+                addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION)
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                    addFlags(Intent.FLAG_GRANT_PREFIX_URI_PERMISSION)
                 }
-                if (fragment != null)
-                    fragment?.startActivityForResult(intent, idCode)
-                else
-                    activity?.startActivityForResult(intent, idCode)
-                return idCode
-            } catch (e: Exception) {
-                Log.e(TAG, "Unable to create document", e)
-                showFileManagerDialogFragment()
+                addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
             }
-        } else {
-            showFileManagerDialogFragment()
         }
-        return null
     }
 
-    /**
-     * To use in onActivityResultCallback in Fragment or Activity
-     * @param onFileCreated Callback retrieve from data
-     * @return true if requestCode was captured, false elsewhere
-     */
-    fun onCreateDocumentResult(requestCode: Int, resultCode: Int, data: Intent?,
-                               onFileCreated: (fileCreated: Uri?)->Unit) {
-        // Retrieve the created URI from the file manager
-        if (fileRequestCodes.contains(requestCode) && resultCode == RESULT_OK) {
-            onFileCreated.invoke(data?.data)
-            fileRequestCodes.remove(requestCode)
+    class GetContent : ActivityResultContracts.GetContent() {
+        @SuppressLint("InlinedApi")
+        override fun createIntent(context: Context, input: String): Intent {
+            return super.createIntent(context, input).apply {
+                addCategory(Intent.CATEGORY_OPENABLE)
+                addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION)
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                    addFlags(Intent.FLAG_GRANT_PREFIX_URI_PERMISSION)
+                }
+                addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
+            }
         }
     }
 
+    class CreateDocument(private val typeString: String) : ActivityResultContracts.CreateDocument() {
+        override fun createIntent(context: Context, input: String): Intent {
+            return super.createIntent(context, input).apply {
+                addCategory(Intent.CATEGORY_OPENABLE)
+                type = typeString
+            }
+        }
+    }
+
+
     companion object {
 
         private const val TAG = "OpenFileHelper"
 
-        private const val GET_CONTENT = 25745
-        private const val OPEN_DOC = 25845
-        private const val FILE_BROWSE = 25645
-
-        private var CREATE_FILE_REQUEST_CODE_DEFAULT = 3853
-        private var fileRequestCodes = ArrayList<Int>()
-
-        private fun getUnusedCreateFileRequestCode(): Int {
-            val newCreateFileRequestCode = CREATE_FILE_REQUEST_CODE_DEFAULT++
-            fileRequestCodes.add(newCreateFileRequestCode)
-            return newCreateFileRequestCode
-        }
-
         @SuppressLint("InlinedApi")
         fun allowCreateDocumentByStorageAccessFramework(packageManager: PackageManager,
                                                         typeString: String = "application/octet-stream"): Boolean {
@@ -231,7 +212,7 @@ class ExternalFileHelper {
 fun View.setOpenDocumentClickListener(externalFileHelper: ExternalFileHelper?) {
     externalFileHelper?.let { fileHelper ->
         setOnClickListener {
-            fileHelper.openDocument()
+            fileHelper.openDocument(false)
         }
         setOnLongClickListener {
             fileHelper.openDocument(true)

app/src/main/java/com/kunzisoft/keepass/activities/legacy/DatabaseLockActivity.kt

@@ -62,6 +62,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
     private var mExitLock: Boolean = false
 
     protected var mDatabaseReadOnly: Boolean = true
+    protected var mMergeDataAllowed: Boolean = false
     private var mAutoSaveEnable: Boolean = true
 
     protected var mIconDrawableFactory: IconDrawableFactory? = null
@@ -87,8 +88,14 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
             mDatabaseTaskProvider?.startDatabaseSave(save)
         }
 
+        mDatabaseViewModel.mergeDatabase.observe(this) { fixDuplicateUuid ->
+            mDatabaseTaskProvider?.startDatabaseMerge(fixDuplicateUuid)
+        }
+
         mDatabaseViewModel.reloadDatabase.observe(this) { fixDuplicateUuid ->
-            mDatabaseTaskProvider?.startDatabaseReload(fixDuplicateUuid)
+            mDatabaseTaskProvider?.askToStartDatabaseReload(mDatabase?.dataModifiedSinceLastLoading != false) {
+                mDatabaseTaskProvider?.startDatabaseReload(fixDuplicateUuid)
+            }
         }
 
         mDatabaseViewModel.saveName.observe(this) {
@@ -100,7 +107,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
         }
 
         mDatabaseViewModel.saveDefaultUsername.observe(this) {
-            mDatabaseTaskProvider?.startDatabaseSaveName(it.oldValue, it.newValue, it.save)
+            mDatabaseTaskProvider?.startDatabaseSaveDefaultUsername(it.oldValue, it.newValue, it.save)
         }
 
         mDatabaseViewModel.saveColor.observe(this) {
@@ -180,8 +187,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
                         closeDatabase(database)
                         if (LOCKING_ACTIVITY_UI_VISIBLE_DURING_LOCK == null)
                             LOCKING_ACTIVITY_UI_VISIBLE_DURING_LOCK = LOCKING_ACTIVITY_UI_VISIBLE
-                        // Add onActivityForResult response
-                        setResult(RESULT_EXIT_LOCK)
+                        mExitLock = true
                         closeOptionsMenu()
                         finish()
                     }
@@ -198,6 +204,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
             }
 
             mDatabaseReadOnly = database.isReadOnly
+            mMergeDataAllowed = database.isMergeDataAllowed()
             mIconDrawableFactory = database.iconDrawableFactory
 
             checkRegister()
@@ -213,6 +220,7 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
     ) {
         super.onDatabaseActionFinished(database, actionTask, result)
         when (actionTask) {
+            DatabaseTaskNotificationService.ACTION_DATABASE_MERGE_TASK,
             DatabaseTaskNotificationService.ACTION_DATABASE_RELOAD_TASK -> {
                 // Reload the current activity
                 if (result.isSuccess) {
@@ -255,8 +263,14 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
         mDatabaseTaskProvider?.startDatabaseSave(true)
     }
 
+    fun mergeDatabase() {
+        mDatabaseTaskProvider?.startDatabaseMerge(false)
+    }
+
     fun reloadDatabase() {
-        mDatabaseTaskProvider?.startDatabaseReload(false)
+        mDatabaseTaskProvider?.askToStartDatabaseReload(mDatabase?.dataModifiedSinceLastLoading != false) {
+            mDatabaseTaskProvider?.startDatabaseReload(false)
+        }
     }
 
     fun createEntry(newEntry: Entry,
@@ -353,14 +367,6 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
         mDatabaseTaskProvider?.startDatabaseDeleteEntryHistory(mainEntryId, entryHistoryPosition, mAutoSaveEnable)
     }
 
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        super.onActivityResult(requestCode, resultCode, data)
-        if (resultCode == RESULT_EXIT_LOCK) {
-            mExitLock = true
-            lockAndExit()
-        }
-    }
-
     private fun checkRegister() {
         // If in ave or registration mode, don't allow read only
         if ((mSpecialMode == SpecialMode.SAVE
@@ -440,8 +446,6 @@ abstract class DatabaseLockActivity : DatabaseModeActivity(),
 
         const val TAG = "LockingActivity"
 
-        const val RESULT_EXIT_LOCK = 1450
-
         const val TIMEOUT_ENABLE_KEY = "TIMEOUT_ENABLE_KEY"
         const val TIMEOUT_ENABLE_KEY_DEFAULT = true
 

app/src/main/java/com/kunzisoft/keepass/activities/stylish/Stylish.kt

@@ -39,7 +39,11 @@ object Stylish {
      */
     fun load(context: Context) {
         Log.d(Stylish::class.java.name, "Attatching to " + context.packageName)
-        themeString = PreferencesUtil.getStyle(context)
+        try {
+            themeString = PreferencesUtil.getStyle(context)
+        } catch (e: Exception) {
+            Log.e("Stylish", "Unable to get preference style", e)
+        }
     }
 
     fun retrieveEquivalentSystemStyle(context: Context, styleString: String): String {

app/src/main/java/com/kunzisoft/keepass/activities/stylish/StylishActivity.kt

@@ -28,7 +28,7 @@ import android.util.Log
 import android.view.WindowManager
 import androidx.annotation.StyleRes
 import androidx.appcompat.app.AppCompatActivity
-import com.kunzisoft.keepass.settings.NestedAppSettingsFragment.Companion.DATABASE_APPEARANCE_PREFERENCE_CHANGED
+import com.kunzisoft.keepass.settings.NestedAppSettingsFragment.Companion.DATABASE_PREFERENCE_CHANGED
 
 /**
  * Stylish Hide Activity that apply a dynamic style and sets FLAG_SECURE to prevent screenshots / from
@@ -89,8 +89,8 @@ abstract class StylishActivity : AppCompatActivity() {
         super.onResume()
 
         if ((customStyle && Stylish.getThemeId(this) != this.themeId)
-            || DATABASE_APPEARANCE_PREFERENCE_CHANGED) {
-            DATABASE_APPEARANCE_PREFERENCE_CHANGED = false
+            || DATABASE_PREFERENCE_CHANGED) {
+            DATABASE_PREFERENCE_CHANGED = false
             Log.d(this.javaClass.name, "Theme change detected, restarting activity")
             recreateActivity()
         }

app/src/main/java/com/kunzisoft/keepass/activities/stylish/StylishFragment.kt

@@ -23,12 +23,12 @@ import android.content.Context
 import android.graphics.Color
 import android.os.Build
 import android.os.Bundle
-import androidx.annotation.StyleRes
-import androidx.fragment.app.Fragment
-import androidx.appcompat.view.ContextThemeWrapper
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.annotation.StyleRes
+import androidx.appcompat.view.ContextThemeWrapper
+import androidx.fragment.app.Fragment
 
 abstract class StylishFragment : Fragment() {
 
@@ -42,7 +42,6 @@ abstract class StylishFragment : Fragment() {
         contextThemed = ContextThemeWrapper(context, themeId)
     }
 
-    @Suppress("DEPRECATION")
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         // To fix status bar color
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
@@ -58,6 +57,7 @@ abstract class StylishFragment : Fragment() {
                 try {
                     val taWindowStatusLight = contextThemed?.theme?.obtainStyledAttributes(intArrayOf(android.R.attr.windowLightStatusBar))
                     if (taWindowStatusLight?.getBoolean(0, false) == true) {
+                        @Suppress("DEPRECATION")
                         window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
                     }
                     taWindowStatusLight?.recycle()

app/src/main/java/com/kunzisoft/keepass/adapters/BreadcrumbAdapter.kt

@@ -0,0 +1,150 @@
+package com.kunzisoft.keepass.adapters
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.graphics.Color
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.database.element.Group
+import com.kunzisoft.keepass.database.element.node.Node
+import com.kunzisoft.keepass.database.element.node.Type
+import com.kunzisoft.keepass.icons.IconDrawableFactory
+import com.kunzisoft.keepass.settings.PreferencesUtil
+import com.kunzisoft.keepass.view.strikeOut
+
+class BreadcrumbAdapter(val context: Context)
+    : RecyclerView.Adapter<BreadcrumbAdapter.BreadcrumbGroupViewHolder>() {
+
+    private val inflater: LayoutInflater = LayoutInflater.from(context)
+    var iconDrawableFactory: IconDrawableFactory? = null
+        @SuppressLint("NotifyDataSetChanged")
+        set(value) {
+            field = value
+            notifyDataSetChanged()
+        }
+    private var mNodeBreadcrumb: MutableList<Node?> = mutableListOf()
+    var onItemClickListener: ((item: Node, position: Int)->Unit)? = null
+    var onLongItemClickListener: ((item: Node, position: Int)->Unit)? = null
+
+    private var mShowNumberEntries = false
+    private var mShowUUID = false
+    private var mIconColor: Int = 0
+
+    init {
+        mShowNumberEntries = PreferencesUtil.showNumberEntries(context)
+        mShowUUID = PreferencesUtil.showUUID(context)
+
+        // Retrieve the textColor to tint the icon
+        val taTextColor = context.theme.obtainStyledAttributes(intArrayOf(R.attr.textColorInverse))
+        mIconColor = taTextColor.getColor(0, Color.WHITE)
+        taTextColor.recycle()
+    }
+
+    @SuppressLint("NotifyDataSetChanged")
+    fun setNode(node: Node?) {
+        mNodeBreadcrumb.clear()
+        node?.let {
+            var currentNode = it
+            mNodeBreadcrumb.add(0, currentNode)
+            while (currentNode.containsParent()) {
+                currentNode.parent?.let { parent ->
+                    currentNode = parent
+                    mNodeBreadcrumb.add(0, currentNode)
+                }
+            }
+        }
+        notifyDataSetChanged()
+    }
+
+    override fun getItemViewType(position: Int): Int {
+        return when (position) {
+            mNodeBreadcrumb.size - 1 -> 0
+            else -> 1
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BreadcrumbGroupViewHolder {
+        return BreadcrumbGroupViewHolder(inflater.inflate(
+            when (viewType) {
+                0 -> R.layout.item_group
+                else -> R.layout.item_breadcrumb
+            }, parent, false)
+        )
+    }
+
+    override fun onBindViewHolder(holder: BreadcrumbGroupViewHolder, position: Int) {
+        val node = mNodeBreadcrumb[position]
+
+        holder.groupNameView.apply {
+            text = node?.title ?: ""
+            strikeOut(node?.isCurrentlyExpires ?: false)
+        }
+
+        holder.itemView.apply {
+            setOnClickListener {
+                node?.let {
+                    onItemClickListener?.invoke(it, position)
+                }
+            }
+            setOnLongClickListener {
+                node?.let {
+                    onLongItemClickListener?.invoke(it, position)
+                }
+                true
+            }
+        }
+
+        if (node?.type == Type.GROUP) {
+            (node as Group).let { group ->
+
+                holder.groupIconView?.let { imageView ->
+                    iconDrawableFactory?.assignDatabaseIcon(
+                        imageView,
+                        group.icon,
+                        mIconColor
+                    )
+                }
+
+                holder.groupNumbersView?.apply {
+                    if (mShowNumberEntries) {
+                        group.refreshNumberOfChildEntries(Group.ChildFilter.getDefaults(context))
+                        text = group.numberOfChildEntries.toString()
+                        visibility = View.VISIBLE
+                    } else {
+                        visibility = View.GONE
+                    }
+                }
+
+                holder.groupMetaView?.apply {
+                    val meta = group.nodeId.toVisualString()
+                    visibility = if (meta != null
+                        && !group.isVirtual
+                        && mShowUUID
+                    ) {
+                        text = meta
+                        View.VISIBLE
+                    } else {
+                        View.GONE
+                    }
+                }
+            }
+        }
+
+    }
+
+    override fun getItemCount(): Int {
+        return mNodeBreadcrumb.size
+    }
+
+    inner class BreadcrumbGroupViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        var groupIconView: ImageView? = itemView.findViewById(R.id.group_icon)
+        var groupNumbersView: TextView? = itemView.findViewById(R.id.group_numbers)
+        var groupNameView: TextView = itemView.findViewById(R.id.group_name)
+        var groupMetaView: TextView? = itemView.findViewById(R.id.group_meta)
+    }
+}

app/src/main/java/com/kunzisoft/keepass/adapters/NodesAdapter.kt

@@ -26,7 +26,6 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
-import android.widget.ProgressBar
 import android.widget.TextView
 import android.widget.Toast
 import androidx.annotation.ColorInt
@@ -34,6 +33,7 @@ import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.SortedList
 import androidx.recyclerview.widget.SortedListAdapterCallback
+import com.google.android.material.progressindicator.CircularProgressIndicator
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.Entry
@@ -55,9 +55,9 @@ import java.util.*
  * Create node list adapter with contextMenu or not
  * @param context Context to use
  */
-class NodeAdapter (private val context: Context,
-                   private val database: Database)
-    : RecyclerView.Adapter<NodeAdapter.NodeViewHolder>() {
+class NodesAdapter (private val context: Context,
+                    private val database: Database)
+    : RecyclerView.Adapter<NodesAdapter.NodeViewHolder>() {
 
     private var mNodeComparator: Comparator<NodeVersionedInterface<Group>>? = null
     private val mNodeSortedListCallback: NodeSortedListCallback
@@ -79,6 +79,8 @@ class NodeAdapter (private val context: Context,
     private var mShowOTP: Boolean = false
     private var mShowUUID: Boolean = false
     private var mEntryFilters = arrayOf<Group.ChildFilter>()
+    private var mOldVirtualGroup = false
+    private var mVirtualGroup = false
 
     private var mActionNodesList = LinkedList<Node>()
     private var mNodeClickCallback: NodeClickCallback? = null
@@ -87,9 +89,15 @@ class NodeAdapter (private val context: Context,
     @ColorInt
     private val mContentSelectionColor: Int
     @ColorInt
-    private val mIconGroupColor: Int
+    private val mTextColorPrimary: Int
     @ColorInt
-    private val mIconEntryColor: Int
+    private val mTextColor: Int
+    @ColorInt
+    private val mTextColorSecondary: Int
+    @ColorInt
+    private val mColorAccentLight: Int
+    @ColorInt
+    private val mTextColorSelected: Int
 
     /**
      * Determine if the adapter contains or not any element
@@ -110,12 +118,24 @@ class NodeAdapter (private val context: Context,
         this.mContentSelectionColor = ContextCompat.getColor(context, R.color.white)
         // Retrieve the color to tint the icon
         val taTextColorPrimary = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColorPrimary))
-        this.mIconGroupColor = taTextColorPrimary.getColor(0, Color.BLACK)
+        this.mTextColorPrimary = taTextColorPrimary.getColor(0, Color.BLACK)
         taTextColorPrimary.recycle()
-        // In two times to fix bug compilation
+        // To get text color
         val taTextColor = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColor))
-        this.mIconEntryColor = taTextColor.getColor(0, Color.BLACK)
+        this.mTextColor = taTextColor.getColor(0, Color.BLACK)
         taTextColor.recycle()
+        // To get text color secondary
+        val taTextColorSecondary = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColorSecondary))
+        this.mTextColorSecondary = taTextColorSecondary.getColor(0, Color.BLACK)
+        taTextColorSecondary.recycle()
+        // To get background color for selection
+        val taSelectionColor = context.theme.obtainStyledAttributes(intArrayOf(R.attr.colorAccentLight))
+        this.mColorAccentLight = taSelectionColor.getColor(0, Color.GRAY)
+        taSelectionColor.recycle()
+        // To get text color for selection
+        val taSelectionTextColor = context.theme.obtainStyledAttributes(intArrayOf(R.attr.colorOnAccentColor))
+        this.mTextColorSelected = taSelectionTextColor.getColor(0, Color.WHITE)
+        taSelectionTextColor.recycle()
     }
 
     private fun assignPreferences() {
@@ -145,6 +165,8 @@ class NodeAdapter (private val context: Context,
      * Rebuild the list by clear and build children from the group
      */
     fun rebuildList(group: Group) {
+        mOldVirtualGroup = mVirtualGroup
+        mVirtualGroup = group.isVirtual
         assignPreferences()
         mNodeSortedList.replaceAll(group.getFilteredChildren(mEntryFilters))
     }
@@ -155,14 +177,19 @@ class NodeAdapter (private val context: Context,
         }
 
         override fun areContentsTheSame(oldItem: Node, newItem: Node): Boolean {
+            if (mOldVirtualGroup != mVirtualGroup)
+                return false
             var typeContentTheSame = true
             if (oldItem is Entry && newItem is Entry) {
                 typeContentTheSame = oldItem.getVisualTitle() == newItem.getVisualTitle()
                         && oldItem.username == newItem.username
+                        && oldItem.backgroundColor == newItem.backgroundColor
+                        && oldItem.foregroundColor == newItem.foregroundColor
                         && oldItem.getOtpElement() == newItem.getOtpElement()
                         && oldItem.containsAttachment() == newItem.containsAttachment()
             } else if (oldItem is Group && newItem is Group) {
                 typeContentTheSame = oldItem.numberOfChildEntries == newItem.numberOfChildEntries
+                        && oldItem.notes == newItem.notes
             }
             return typeContentTheSame
                     && oldItem.nodeId == newItem.nodeId
@@ -327,8 +354,8 @@ class NodeAdapter (private val context: Context,
         val iconColor = if (holder.container.isSelected)
             mContentSelectionColor
         else when (subNode.type) {
-            Type.GROUP -> mIconGroupColor
-            Type.ENTRY -> mIconEntryColor
+            Type.GROUP -> mTextColorPrimary
+            Type.ENTRY -> mTextColor
         }
         holder.imageIdentifier?.setColorFilter(iconColor)
         holder.icon.apply {
@@ -348,14 +375,24 @@ class NodeAdapter (private val context: Context,
         }
         // Add meta text to show UUID
         holder.meta.apply {
-            if (mShowUUID) {
-                text = subNode.nodeId.toString()
+            val nodeId = subNode.nodeId?.toVisualString()
+            if (mShowUUID && nodeId != null) {
+                text = nodeId
                 setTextSize(mTextSizeUnit, mMetaTextDefaultDimension, mPrefSizeMultiplier)
                 visibility = View.VISIBLE
             } else {
                 visibility = View.GONE
             }
         }
+        // Add path to virtual group
+        if (mVirtualGroup) {
+            holder.path?.apply {
+                text = subNode.getPathString()
+                visibility = View.VISIBLE
+            }
+        } else {
+            holder.path?.visibility = View.GONE
+        }
 
         // Specific elements for entry
         if (subNode.type == Type.ENTRY) {
@@ -398,6 +435,50 @@ class NodeAdapter (private val context: Context,
             holder.attachmentIcon?.visibility =
                     if (entry.containsAttachment()) View.VISIBLE else View.GONE
 
+            // Assign colors
+            val backgroundColor = entry.backgroundColor
+            if (!holder.container.isSelected) {
+                if (backgroundColor != null) {
+                    holder.container.setBackgroundColor(backgroundColor)
+                } else {
+                    holder.container.setBackgroundColor(Color.TRANSPARENT)
+                }
+            } else {
+                holder.container.setBackgroundColor(mColorAccentLight)
+            }
+            val foregroundColor = entry.foregroundColor
+            if (!holder.container.isSelected) {
+                if (foregroundColor != null) {
+                    holder.text.setTextColor(foregroundColor)
+                    holder.subText?.setTextColor(foregroundColor)
+                    holder.otpToken?.setTextColor(foregroundColor)
+                    holder.otpProgress?.setIndicatorColor(foregroundColor)
+                    holder.attachmentIcon?.setColorFilter(foregroundColor)
+                    holder.meta.setTextColor(foregroundColor)
+                    holder.icon.apply {
+                        database.iconDrawableFactory.assignDatabaseIcon(
+                            this,
+                            subNode.icon,
+                            foregroundColor
+                        )
+                    }
+                } else {
+                    holder.text.setTextColor(mTextColor)
+                    holder.subText?.setTextColor(mTextColorSecondary)
+                    holder.otpToken?.setTextColor(mTextColorSecondary)
+                    holder.otpProgress?.setIndicatorColor(mTextColorSecondary)
+                    holder.attachmentIcon?.setColorFilter(mTextColorSecondary)
+                    holder.meta.setTextColor(mTextColor)
+                }
+            } else {
+                holder.text.setTextColor(mTextColorSelected)
+                holder.subText?.setTextColor(mTextColorSelected)
+                holder.otpToken?.setTextColor(mTextColorSelected)
+                holder.otpProgress?.setIndicatorColor(mTextColorSelected)
+                holder.attachmentIcon?.setColorFilter(mTextColorSelected)
+                holder.meta.setTextColor(mTextColorSelected)
+            }
+
             database.stopManageEntry(entry)
         }
 
@@ -430,15 +511,16 @@ class NodeAdapter (private val context: Context,
             OtpType.HOTP -> {
                 holder?.otpProgress?.apply {
                     max = 100
-                    progress = 100
+                    setProgressCompat(100, true)
                 }
             }
             OtpType.TOTP -> {
                 holder?.otpProgress?.apply {
                     max = otpElement.period
-                    progress = otpElement.secondsRemaining
+                    setProgressCompat(otpElement.secondsRemaining, true)
                 }
             }
+            null -> {}
         }
         holder?.otpToken?.apply {
             text = otpElement?.token
@@ -497,8 +579,9 @@ class NodeAdapter (private val context: Context,
         var text: TextView = itemView.findViewById(R.id.node_text)
         var subText: TextView? = itemView.findViewById(R.id.node_subtext)
         var meta: TextView = itemView.findViewById(R.id.node_meta)
+        var path: TextView? = itemView.findViewById(R.id.node_path)
         var otpContainer: ViewGroup? = itemView.findViewById(R.id.node_otp_container)
-        var otpProgress: ProgressBar? = itemView.findViewById(R.id.node_otp_progress)
+        var otpProgress: CircularProgressIndicator? = itemView.findViewById(R.id.node_otp_progress)
         var otpToken: TextView? = itemView.findViewById(R.id.node_otp_token)
         var otpRunnable: OtpRunnable = OtpRunnable(otpContainer)
         var numberChildren: TextView? = itemView.findViewById(R.id.node_child_numbers)
@@ -506,6 +589,6 @@ class NodeAdapter (private val context: Context,
     }
 
     companion object {
-        private val TAG = NodeAdapter::class.java.name
+        private val TAG = NodesAdapter::class.java.name
     }
 }

app/src/main/java/com/kunzisoft/keepass/adapters/SearchEntryCursorAdapter.kt

@@ -21,27 +21,29 @@ package com.kunzisoft.keepass.adapters
 
 import android.content.Context
 import android.database.Cursor
+import android.database.MatrixCursor
 import android.graphics.Color
+import android.provider.BaseColumns
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.ImageView
 import android.widget.TextView
+import androidx.cursoradapter.widget.CursorAdapter
 import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.database.cursor.EntryCursorKDB
-import com.kunzisoft.keepass.database.cursor.EntryCursorKDBX
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.Entry
 import com.kunzisoft.keepass.database.element.Group
-import com.kunzisoft.keepass.database.element.database.DatabaseKDB
-import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
+import com.kunzisoft.keepass.database.element.node.NodeId
+import com.kunzisoft.keepass.database.element.node.NodeIdUUID
 import com.kunzisoft.keepass.database.search.SearchHelper
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.view.strikeOut
+import java.util.*
 
 class SearchEntryCursorAdapter(private val context: Context,
                                private val database: Database)
-    : androidx.cursoradapter.widget.CursorAdapter(context, null, FLAG_REGISTER_CONTENT_OBSERVER) {
+    : CursorAdapter(context, null, FLAG_REGISTER_CONTENT_OBSERVER) {
 
     private val cursorInflater: LayoutInflater? = context.getSystemService(
             Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater?
@@ -70,6 +72,7 @@ class SearchEntryCursorAdapter(private val context: Context,
         viewHolder.imageViewIcon = view.findViewById(R.id.entry_icon)
         viewHolder.textViewTitle = view.findViewById(R.id.entry_text)
         viewHolder.textViewSubTitle = view.findViewById(R.id.entry_subtext)
+        viewHolder.textViewPath = view.findViewById(R.id.entry_path)
         view.tag = viewHolder
 
         return view
@@ -101,32 +104,16 @@ class SearchEntryCursorAdapter(private val context: Context,
                 visibility = if (text.isEmpty()) View.GONE else View.VISIBLE
                 strikeOut(currentEntry.isCurrentlyExpires)
             }
+
+            viewHolder.textViewPath?.apply {
+                text = currentEntry.getPathString()
+            }
         }
     }
 
     private fun getEntryFrom(cursor: Cursor): Entry? {
-        return database.createEntry()?.apply {
-            entryKDB?.let { entryKDB ->
-                (cursor as EntryCursorKDB).populateEntry(entryKDB,
-                        { standardIconId ->
-                            database.getStandardIcon(standardIconId)
-                        },
-                        { customIconId ->
-                            database.getCustomIcon(customIconId)
-                        }
-                )
-            }
-            entryKDBX?.let { entryKDBX ->
-                (cursor as EntryCursorKDBX).populateEntry(entryKDBX,
-                        { standardIconId ->
-                            database.getStandardIcon(standardIconId)
-                        },
-                        { customIconId ->
-                            database.getCustomIcon(customIconId)
-                        }
-                )
-            }
-        }
+        val entryCursor = cursor as EntryCursor
+        return database.getEntryById(entryCursor.getNodeId())
     }
 
     override fun runQueryOnBackgroundThread(constraint: CharSequence): Cursor? {
@@ -134,14 +121,7 @@ class SearchEntryCursorAdapter(private val context: Context,
     }
 
     private fun searchEntries(context: Context, query: String): Cursor? {
-        var cursorKDB: EntryCursorKDB? = null
-        var cursorKDBX: EntryCursorKDBX? = null
-
-        if (database.type == DatabaseKDB.TYPE)
-            cursorKDB = EntryCursorKDB()
-        if (database.type == DatabaseKDBX.TYPE)
-            cursorKDBX = EntryCursorKDBX()
-
+        val cursor = EntryCursor()
         val searchGroup = database.createVirtualGroupFromSearch(query,
                 mOmitBackup,
                 SearchHelper.MAX_SEARCH_ENTRY)
@@ -149,17 +129,11 @@ class SearchEntryCursorAdapter(private val context: Context,
             // Search in hide entries but not meta-stream
             for (entry in searchGroup.getFilteredChildEntries(Group.ChildFilter.getDefaults(context))) {
                 database.startManageEntry(entry)
-                entry.entryKDB?.let {
-                    cursorKDB?.addEntry(it)
-                }
-                entry.entryKDBX?.let {
-                    cursorKDBX?.addEntry(it)
-                }
+                cursor.addEntry(entry)
                 database.stopManageEntry(entry)
             }
         }
-
-        return cursorKDB ?: cursorKDBX
+        return cursor
     }
 
     fun getEntryFromPosition(position: Int): Entry? {
@@ -176,5 +150,37 @@ class SearchEntryCursorAdapter(private val context: Context,
         var imageViewIcon: ImageView? = null
         var textViewTitle: TextView? = null
         var textViewSubTitle: TextView? = null
+        var textViewPath: TextView? = null
+    }
+
+    private class EntryCursor : MatrixCursor(arrayOf(
+        ID,
+        COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS,
+        COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS
+    )) {
+
+        private var entryId: Long = 0
+
+        fun addEntry(entry: Entry) {
+            addRow(arrayOf(
+                entryId,
+                entry.nodeId.id.mostSignificantBits,
+                entry.nodeId.id.leastSignificantBits
+            ))
+            entryId++
+        }
+
+        fun getNodeId(): NodeId<UUID> {
+            return NodeIdUUID(
+                UUID(getLong(getColumnIndex(COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS)),
+                    getLong(getColumnIndex(COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS)))
+            )
+        }
+
+        companion object {
+            const val ID = BaseColumns._ID
+            const val COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS = "UUID_most_significant_bits"
+            const val COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS = "UUID_least_significant_bits"
+        }
     }
 }

app/src/main/java/com/kunzisoft/keepass/adapters/TemplatesSelectorAdapter.kt

@@ -9,23 +9,23 @@ import android.widget.BaseAdapter
 import android.widget.ImageView
 import android.widget.TextView
 import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.template.Template
 import com.kunzisoft.keepass.database.element.template.TemplateField
 import com.kunzisoft.keepass.icons.IconDrawableFactory
 
 
-class TemplatesSelectorAdapter(private val context: Context,
-                               private val iconDrawableFactory: IconDrawableFactory?,
-                               private var templates: List<Template>): BaseAdapter() {
+class TemplatesSelectorAdapter(
+    context: Context,
+    private var templates: List<Template>): BaseAdapter() {
 
+    var iconDrawableFactory: IconDrawableFactory? = null
     private val inflater: LayoutInflater = LayoutInflater.from(context)
-    private var mIconColor = Color.BLACK
+    private var mTextColor = Color.BLACK
 
     init {
-        val taIconColor = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColor))
-        mIconColor = taIconColor.getColor(0, Color.BLACK)
-        taIconColor.recycle()
+        val taTextColor = context.theme.obtainStyledAttributes(intArrayOf(android.R.attr.textColor))
+        mTextColor = taTextColor.getColor(0, Color.BLACK)
+        taTextColor.recycle()
     }
 
     override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
@@ -36,6 +36,7 @@ class TemplatesSelectorAdapter(private val context: Context,
         if (templateView == null) {
             holder = TemplateSelectorViewHolder()
             templateView = inflater.inflate(R.layout.item_template, parent, false)
+            holder.background = templateView?.findViewById(R.id.template_background)
             holder.icon = templateView?.findViewById(R.id.template_image)
             holder.name = templateView?.findViewById(R.id.template_name)
             templateView?.tag = holder
@@ -43,10 +44,15 @@ class TemplatesSelectorAdapter(private val context: Context,
             holder = templateView.tag as TemplateSelectorViewHolder
         }
 
+        holder.background?.setBackgroundColor(template.backgroundColor ?: Color.TRANSPARENT)
+        val textColor = template.foregroundColor ?: mTextColor
         holder.icon?.let { icon ->
-            iconDrawableFactory?.assignDatabaseIcon(icon, template.icon, mIconColor)
+            iconDrawableFactory?.assignDatabaseIcon(icon, template.icon, textColor)
+        }
+        holder.name?.apply {
+            setTextColor(textColor)
+            text = TemplateField.getLocalizedName(context, template.title)
         }
-        holder.name?.text = TemplateField.getLocalizedName(context, template.title)
 
         return templateView!!
     }
@@ -64,6 +70,7 @@ class TemplatesSelectorAdapter(private val context: Context,
     }
 
     inner class TemplateSelectorViewHolder {
+        var background: View? = null
         var icon: ImageView? = null
         var name: TextView? = null
     }

app/src/main/java/com/kunzisoft/keepass/autofill/AutofillComponent.kt

@@ -4,4 +4,4 @@ import android.app.assist.AssistStructure
 import android.view.inputmethod.InlineSuggestionsRequest
 
 data class AutofillComponent(val assistStructure: AssistStructure,
-                             val inlineSuggestionsRequest: InlineSuggestionsRequest?)
+                             val compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest?)

app/src/main/java/com/kunzisoft/keepass/autofill/AutofillHelper.kt

@@ -25,7 +25,6 @@ import android.app.PendingIntent
 import android.app.assist.AssistStructure
 import android.content.Context
 import android.content.Intent
-import android.content.IntentSender
 import android.graphics.BlendMode
 import android.graphics.drawable.Icon
 import android.os.Build
@@ -35,11 +34,13 @@ import android.service.autofill.InlinePresentation
 import android.util.Log
 import android.view.autofill.AutofillManager
 import android.view.autofill.AutofillValue
-import android.view.inputmethod.InlineSuggestionsRequest
 import android.widget.RemoteViews
 import android.widget.Toast
 import android.widget.inline.InlinePresentationSpec
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.annotation.RequiresApi
+import androidx.appcompat.app.AppCompatActivity
 import androidx.autofill.inline.UiVersions
 import androidx.autofill.inline.v1.InlineSuggestionUi
 import androidx.core.content.ContextCompat
@@ -49,21 +50,19 @@ import com.kunzisoft.keepass.activities.helpers.EntrySelectionHelper
 import com.kunzisoft.keepass.activities.helpers.SpecialMode
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.icon.IconImage
+import com.kunzisoft.keepass.database.element.template.TemplateField
 import com.kunzisoft.keepass.model.EntryInfo
 import com.kunzisoft.keepass.model.SearchInfo
-import com.kunzisoft.keepass.database.element.template.TemplateField
 import com.kunzisoft.keepass.settings.AutofillSettingsActivity
 import com.kunzisoft.keepass.settings.PreferencesUtil
-import kotlin.collections.ArrayList
+import com.kunzisoft.keepass.utils.LOCK_ACTION
 
 
 @RequiresApi(api = Build.VERSION_CODES.O)
 object AutofillHelper {
 
-    private const val AUTOFILL_RESPONSE_REQUEST_CODE = 8165
-
     private const val EXTRA_ASSIST_STRUCTURE = AutofillManager.EXTRA_ASSIST_STRUCTURE
-    const val EXTRA_INLINE_SUGGESTIONS_REQUEST = "com.kunzisoft.keepass.autofill.INLINE_SUGGESTIONS_REQUEST"
+    private const val EXTRA_INLINE_SUGGESTIONS_REQUEST = "com.kunzisoft.keepass.autofill.INLINE_SUGGESTIONS_REQUEST"
 
     fun retrieveAutofillComponent(intent: Intent?): AutofillComponent? {
         intent?.getParcelableExtra<AssistStructure?>(EXTRA_ASSIST_STRUCTURE)?.let { assistStructure ->
@@ -112,7 +111,7 @@ object AutofillHelper {
                              database: Database,
                              entryInfo: EntryInfo,
                              struct: StructureParser.Result,
-                             inlinePresentation: InlinePresentation?): Dataset? {
+                             additionalBuild: ((build: Dataset.Builder) -> Unit)? = null): Dataset? {
         val title = makeEntryTitle(entryInfo)
         val views = newRemoteViews(context, database, title, entryInfo.icon)
         val builder = Dataset.Builder(views)
@@ -201,11 +200,7 @@ object AutofillHelper {
             }
         }
 
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-            inlinePresentation?.let {
-                builder.setInlinePresentation(it)
-            }
-        }
+        additionalBuild?.invoke(builder)
 
         return try {
             builder.build()
@@ -236,40 +231,51 @@ object AutofillHelper {
     @SuppressLint("RestrictedApi")
     private fun buildInlinePresentationForEntry(context: Context,
                                                 database: Database,
-                                                inlineSuggestionsRequest: InlineSuggestionsRequest,
+                                                compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest,
                                                 positionItem: Int,
                                                 entryInfo: EntryInfo): InlinePresentation? {
-        val inlinePresentationSpecs = inlineSuggestionsRequest.inlinePresentationSpecs
-        val maxSuggestion = inlineSuggestionsRequest.maxSuggestionCount
+        compatInlineSuggestionsRequest.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
+            val inlinePresentationSpecs = inlineSuggestionsRequest.inlinePresentationSpecs
+            val maxSuggestion = inlineSuggestionsRequest.maxSuggestionCount
 
-        if (positionItem <= maxSuggestion - 1
-                && inlinePresentationSpecs.size > positionItem) {
-            val inlinePresentationSpec = inlinePresentationSpecs[positionItem]
+            if (positionItem <= maxSuggestion - 1
+                && inlinePresentationSpecs.size > positionItem
+            ) {
+                val inlinePresentationSpec = inlinePresentationSpecs[positionItem]
 
-            // Make sure that the IME spec claims support for v1 UI template.
-            val imeStyle = inlinePresentationSpec.style
-            if (!UiVersions.getVersions(imeStyle).contains(UiVersions.INLINE_UI_VERSION_1))
-                return null
+                // Make sure that the IME spec claims support for v1 UI template.
+                val imeStyle = inlinePresentationSpec.style
+                if (!UiVersions.getVersions(imeStyle).contains(UiVersions.INLINE_UI_VERSION_1))
+                    return null
 
-            // Build the content for IME UI
-            val pendingIntent = PendingIntent.getActivity(context,
+                // Build the content for IME UI
+                val pendingIntent = PendingIntent.getActivity(
+                    context,
                     0,
                     Intent(context, AutofillSettingsActivity::class.java),
-                    0)
-            return InlinePresentation(
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                        PendingIntent.FLAG_IMMUTABLE
+                    } else {
+                        0
+                    }
+                )
+                return InlinePresentation(
                     InlineSuggestionUi.newContentBuilder(pendingIntent).apply {
                         setContentDescription(context.getString(R.string.autofill_sign_in_prompt))
                         setTitle(entryInfo.title)
                         setSubtitle(entryInfo.username)
-                        setStartIcon(Icon.createWithResource(context, R.mipmap.ic_launcher_round).apply {
-                            setTintBlendMode(BlendMode.DST)
-                        })
+                        setStartIcon(
+                            Icon.createWithResource(context, R.mipmap.ic_launcher_round).apply {
+                                setTintBlendMode(BlendMode.DST)
+                            })
                         buildIconFromEntry(context, database, entryInfo)?.let { icon ->
                             setEndIcon(icon.apply {
                                 setTintBlendMode(BlendMode.DST)
                             })
                         }
-                    }.build().slice, inlinePresentationSpec, false)
+                    }.build().slice, inlinePresentationSpec, false
+                )
+            }
         }
         return null
     }
@@ -299,7 +305,7 @@ object AutofillHelper {
                       database: Database,
                       entriesInfo: List<EntryInfo>,
                       parseResult: StructureParser.Result,
-                      inlineSuggestionsRequest: InlineSuggestionsRequest?): FillResponse? {
+                      compatInlineSuggestionsRequest: CompatInlineSuggestionsRequest?): FillResponse? {
         val responseBuilder = FillResponse.Builder()
         // Add Header
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
@@ -320,7 +326,7 @@ object AutofillHelper {
         // Add inline suggestion for new IME and dataset
         var numberInlineSuggestions = 0
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-            inlineSuggestionsRequest?.let {
+            compatInlineSuggestionsRequest?.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
                 numberInlineSuggestions = minOf(inlineSuggestionsRequest.maxSuggestionCount, entriesInfo.size)
                 if (PreferencesUtil.isAutofillManualSelectionEnable(context)) {
                     if (entriesInfo.size >= inlineSuggestionsRequest.maxSuggestionCount) {
@@ -332,14 +338,19 @@ object AutofillHelper {
         }
 
         entriesInfo.forEachIndexed { _, entry ->
-            val inlinePresentation = if (numberInlineSuggestions > 0 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                inlineSuggestionsRequest?.let {
-                    buildInlinePresentationForEntry(context, database, inlineSuggestionsRequest, numberInlineSuggestions--, entry)
-                }
+            if (numberInlineSuggestions > 0
+                && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
+                && compatInlineSuggestionsRequest != null) {
+                responseBuilder.addDataset(buildDataset(context, database, entry, parseResult) { builder ->
+                    buildInlinePresentationForEntry(context, database,
+                        compatInlineSuggestionsRequest, numberInlineSuggestions--, entry
+                    )?.let { inlinePresentation ->
+                        builder.setInlinePresentation(inlinePresentation)
+                    }
+                })
             } else {
-                null
+                responseBuilder.addDataset(buildDataset(context, database, entry, parseResult))
             }
-            responseBuilder.addDataset(buildDataset(context, database, entry, parseResult, inlinePresentation))
         }
 
         if (PreferencesUtil.isAutofillManualSelectionEnable(context)) {
@@ -351,14 +362,14 @@ object AutofillHelper {
             }
             val manualSelectionView = RemoteViews(context.packageName, R.layout.item_autofill_select_entry)
             val pendingIntent = AutofillLauncherActivity.getPendingIntentForSelection(context,
-                    searchInfo, inlineSuggestionsRequest)
+                    searchInfo, compatInlineSuggestionsRequest)
 
             parseResult.allAutofillIds().let { autofillIds ->
                 autofillIds.forEach { id ->
                     val builder = Dataset.Builder(manualSelectionView)
 
                     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                        inlineSuggestionsRequest?.let {
+                        compatInlineSuggestionsRequest?.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
                             val inlinePresentationSpec = inlineSuggestionsRequest.inlinePresentationSpecs[0]
                             val inlinePresentation = buildInlinePresentationForManualSelection(context, inlinePresentationSpec, pendingIntent)
                             inlinePresentation?.let {
@@ -403,11 +414,11 @@ object AutofillHelper {
                 StructureParser(structure).parse()?.let { result ->
                     // New Response
                     val response = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                        val inlineSuggestionsRequest = activity.intent?.getParcelableExtra<InlineSuggestionsRequest?>(EXTRA_INLINE_SUGGESTIONS_REQUEST)
-                        if (inlineSuggestionsRequest != null) {
+                        val compatInlineSuggestionsRequest = activity.intent?.getParcelableExtra<CompatInlineSuggestionsRequest?>(EXTRA_INLINE_SUGGESTIONS_REQUEST)
+                        if (compatInlineSuggestionsRequest != null) {
                             Toast.makeText(activity.applicationContext, R.string.autofill_inline_suggestions_keyboard, Toast.LENGTH_SHORT).show()
                         }
-                        buildResponse(activity, database, entriesInfo, result, inlineSuggestionsRequest)
+                        buildResponse(activity, database, entriesInfo, result, compatInlineSuggestionsRequest)
                     } else {
                         buildResponse(activity, database, entriesInfo, result, null)
                     }
@@ -427,37 +438,44 @@ object AutofillHelper {
         }
     }
 
+    fun buildActivityResultLauncher(activity: AppCompatActivity,
+                                    lockDatabase: Boolean = false): ActivityResultLauncher<Intent> {
+        return activity.registerForActivityResult(
+            ActivityResultContracts.StartActivityForResult()
+        ) {
+            // Utility method to loop and close each activity with return data
+            if (it.resultCode == Activity.RESULT_OK) {
+                activity.setResult(it.resultCode, it.data)
+            }
+            if (it.resultCode == Activity.RESULT_CANCELED) {
+                activity.setResult(Activity.RESULT_CANCELED)
+            }
+            activity.finish()
+
+            if (lockDatabase && PreferencesUtil.isAutofillCloseDatabaseEnable(activity)) {
+                // Close the database
+                activity.sendBroadcast(Intent(LOCK_ACTION))
+            }
+        }
+    }
+
     /**
      * Utility method to start an activity with an Autofill for result
      */
-    fun startActivityForAutofillResult(activity: Activity,
+    fun startActivityForAutofillResult(activity: AppCompatActivity,
                                        intent: Intent,
+                                       activityResultLauncher: ActivityResultLauncher<Intent>?,
                                        autofillComponent: AutofillComponent,
                                        searchInfo: SearchInfo?) {
         EntrySelectionHelper.addSpecialModeInIntent(intent, SpecialMode.SELECTION)
         intent.putExtra(EXTRA_ASSIST_STRUCTURE, autofillComponent.assistStructure)
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
                 && PreferencesUtil.isAutofillInlineSuggestionsEnable(activity)) {
-            autofillComponent.inlineSuggestionsRequest?.let {
+            autofillComponent.compatInlineSuggestionsRequest?.let {
                 intent.putExtra(EXTRA_INLINE_SUGGESTIONS_REQUEST, it)
             }
         }
         EntrySelectionHelper.addSearchInfoInIntent(intent, searchInfo)
-        activity.startActivityForResult(intent, AUTOFILL_RESPONSE_REQUEST_CODE)
-    }
-
-    /**
-     * Utility method to loop and close each activity with return data
-     */
-    fun onActivityResultSetResultAndFinish(activity: Activity, requestCode: Int, resultCode: Int, data: Intent?) {
-        if (requestCode == AUTOFILL_RESPONSE_REQUEST_CODE) {
-            if (resultCode == Activity.RESULT_OK) {
-                activity.setResult(resultCode, data)
-            }
-            if (resultCode == Activity.RESULT_CANCELED) {
-                activity.setResult(Activity.RESULT_CANCELED)
-            }
-            activity.finish()
-        }
+        activityResultLauncher?.launch(intent)
     }
 }

app/src/main/java/com/kunzisoft/keepass/autofill/CompatInlineSuggestionsRequest.kt

@@ -0,0 +1,83 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.autofill
+
+import android.annotation.TargetApi
+import android.os.Build
+import android.os.Parcel
+import android.os.Parcelable
+import android.service.autofill.FillRequest
+import android.view.inputmethod.InlineSuggestionsRequest
+import androidx.annotation.RequiresApi
+
+/**
+ * Utility class only to prevent java.lang.NoClassDefFoundError for old Android version and new lib compilation
+ */
+@RequiresApi(Build.VERSION_CODES.O)
+class CompatInlineSuggestionsRequest : Parcelable {
+
+    @TargetApi(Build.VERSION_CODES.R)
+    var inlineSuggestionsRequest: InlineSuggestionsRequest? = null
+        private set
+
+    constructor(fillRequest: FillRequest) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            this.inlineSuggestionsRequest = fillRequest.inlineSuggestionsRequest
+        } else {
+            this.inlineSuggestionsRequest = null
+        }
+    }
+
+    @RequiresApi(Build.VERSION_CODES.R)
+    constructor(inlineSuggestionsRequest: InlineSuggestionsRequest?) {
+        this.inlineSuggestionsRequest = inlineSuggestionsRequest
+    }
+
+    constructor(parcel: Parcel) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            this.inlineSuggestionsRequest =
+                parcel.readParcelable(FillRequest::class.java.classLoader)
+        }
+        else {
+            this.inlineSuggestionsRequest = null
+        }
+    }
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            parcel.writeParcelable(inlineSuggestionsRequest, flags)
+        }
+    }
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    companion object CREATOR : Parcelable.Creator<CompatInlineSuggestionsRequest> {
+        override fun createFromParcel(parcel: Parcel): CompatInlineSuggestionsRequest {
+            return CompatInlineSuggestionsRequest(parcel)
+        }
+
+        override fun newArray(size: Int): Array<CompatInlineSuggestionsRequest?> {
+            return arrayOfNulls(size)
+        }
+    }
+
+}

app/src/main/java/com/kunzisoft/keepass/autofill/KeeAutofillService.kt

@@ -109,7 +109,7 @@ class KeeAutofillService : AutofillService() {
                         searchInfo.webDomain = webDomainWithoutSubDomain
                         val inlineSuggestionsRequest = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
                                 && autofillInlineSuggestionsEnabled) {
-                            request.inlineSuggestionsRequest
+                            CompatInlineSuggestionsRequest(request)
                         } else {
                             null
                         }
@@ -127,7 +127,7 @@ class KeeAutofillService : AutofillService() {
     private fun launchSelection(database: Database?,
                                 searchInfo: SearchInfo,
                                 parseResult: StructureParser.Result,
-                                inlineSuggestionsRequest: InlineSuggestionsRequest?,
+                                inlineSuggestionsRequest: CompatInlineSuggestionsRequest?,
                                 callback: FillCallback) {
         SearchHelper.checkAutoSearchInfo(this,
                 database,
@@ -155,7 +155,7 @@ class KeeAutofillService : AutofillService() {
     private fun showUIForEntrySelection(parseResult: StructureParser.Result,
                                         database: Database?,
                                         searchInfo: SearchInfo,
-                                        inlineSuggestionsRequest: InlineSuggestionsRequest?,
+                                        inlineSuggestionsRequest: CompatInlineSuggestionsRequest?,
                                         callback: FillCallback) {
         parseResult.allAutofillIds().let { autofillIds ->
             if (autofillIds.isNotEmpty()) {
@@ -249,7 +249,7 @@ class KeeAutofillService : AutofillService() {
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R
                         && autofillInlineSuggestionsEnabled) {
                     var inlinePresentation: InlinePresentation? = null
-                    inlineSuggestionsRequest?.let {
+                    inlineSuggestionsRequest?.inlineSuggestionsRequest?.let { inlineSuggestionsRequest ->
                         val inlinePresentationSpecs = inlineSuggestionsRequest.inlinePresentationSpecs
                         if (inlineSuggestionsRequest.maxSuggestionCount > 0
                                 && inlinePresentationSpecs.size > 0) {
@@ -262,9 +262,13 @@ class KeeAutofillService : AutofillService() {
                                 inlinePresentation = InlinePresentation(
                                         InlineSuggestionUi.newContentBuilder(
                                                 PendingIntent.getActivity(this,
-                                                        0,
-                                                        Intent(this, AutofillSettingsActivity::class.java),
-                                                        0)
+                                                    0,
+                                                    Intent(this, AutofillSettingsActivity::class.java),
+                                                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                                                        PendingIntent.FLAG_IMMUTABLE
+                                                    } else {
+                                                        0
+                                                    })
                                         ).apply {
                                             setContentDescription(getString(R.string.autofill_sign_in_prompt))
                                             setTitle(getString(R.string.autofill_sign_in_prompt))
@@ -277,8 +281,9 @@ class KeeAutofillService : AutofillService() {
                     }
                     // Build response
                     responseBuilder.setAuthentication(autofillIds, intentSender, remoteViewsUnlock, inlinePresentation)
+                } else {
+                    responseBuilder.setAuthentication(autofillIds, intentSender, remoteViewsUnlock)
                 }
-                responseBuilder.setAuthentication(autofillIds, intentSender, remoteViewsUnlock)
                 callback.onSuccess(responseBuilder.build())
             }
         }

app/src/main/java/com/kunzisoft/keepass/autofill/StructureParser.kt

@@ -272,12 +272,12 @@ class StructureParser(private val structure: AssistStructure) {
     private fun parseNodeByHtmlAttributes(node: AssistStructure.ViewNode): Boolean {
         val autofillId = node.autofillId
         val nodHtml = node.htmlInfo
-        when (nodHtml?.tag?.toLowerCase(Locale.ENGLISH)) {
+        when (nodHtml?.tag?.lowercase(Locale.ENGLISH)) {
             "input" -> {
                 nodHtml.attributes?.forEach { pairAttribute ->
-                    when (pairAttribute.first.toLowerCase(Locale.ENGLISH)) {
+                    when (pairAttribute.first.lowercase(Locale.ENGLISH)) {
                         "type" -> {
-                            when (pairAttribute.second.toLowerCase(Locale.ENGLISH)) {
+                            when (pairAttribute.second.lowercase(Locale.ENGLISH)) {
                                 "tel", "email" -> {
                                     result?.usernameId = autofillId
                                     result?.usernameValue = node.autofillValue

app/src/main/java/com/kunzisoft/keepass/biometric/AdvancedUnlockFragment.kt

@@ -19,6 +19,7 @@
  */
 package com.kunzisoft.keepass.biometric
 
+import android.app.Activity
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
@@ -27,9 +28,11 @@ import android.os.Bundle
 import android.provider.Settings
 import android.util.Log
 import android.view.*
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.annotation.RequiresApi
 import androidx.biometric.BiometricManager
 import androidx.biometric.BiometricPrompt
+import androidx.fragment.app.activityViewModels
 import androidx.lifecycle.lifecycleScope
 import com.getkeepsafe.taptargetview.TapTargetView
 import com.kunzisoft.keepass.R
@@ -39,6 +42,7 @@ import com.kunzisoft.keepass.database.exception.IODatabaseException
 import com.kunzisoft.keepass.education.PasswordActivityEducation
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.view.AdvancedUnlockInfoView
+import com.kunzisoft.keepass.viewmodels.AdvancedUnlockViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 
@@ -59,9 +63,12 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
     /**
      * Manage setting to auto open biometric prompt
      */
-    private var mAutoOpenPrompt: Boolean = false
+    private var mAutoOpenPrompt: Boolean
         get() {
-            return field && mAutoOpenPromptEnabled
+            return mAdvancedUnlockViewModel.allowAutoOpenBiometricPrompt && mAutoOpenPromptEnabled
+        }
+        set(value) {
+            mAdvancedUnlockViewModel.allowAutoOpenBiometricPrompt = value
         }
 
     // Variable to check if the prompt can be open (if the right activity is currently shown)
@@ -72,6 +79,8 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
 
     private var cipherDatabaseListener: CipherDatabaseAction.CipherDatabaseListener? = null
 
+    private val mAdvancedUnlockViewModel: AdvancedUnlockViewModel by activityViewModels()
+
     // Only to fix multiple fingerprint menu #332
     private var mAllowAdvancedUnlockMenu = false
     private var mAddBiometricMenuInProgress = false
@@ -79,6 +88,15 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
     // Only keep connection when we request a device credential activity
     private var keepConnection = false
 
+    private var mDeviceCredentialResultLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+        mAdvancedUnlockViewModel.allowAutoOpenBiometricPrompt = false
+        // To wait resume
+        if (keepConnection) {
+            mAdvancedUnlockViewModel.deviceCredentialAuthSucceeded = result.resultCode == Activity.RESULT_OK
+        }
+        keepConnection = false
+    }
+
     override fun onAttach(context: Context) {
         super.onAttach(context)
 
@@ -97,10 +115,21 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        retainInstance = true
         setHasOptionsMenu(true)
 
         cipherDatabaseAction = CipherDatabaseAction.getInstance(requireContext().applicationContext)
+
+        mAdvancedUnlockViewModel.onInitAdvancedUnlockModeRequested.observe(this) {
+            initAdvancedUnlockMode()
+        }
+
+        mAdvancedUnlockViewModel.onUnlockAvailabilityCheckRequested.observe(this) {
+            checkUnlockAvailability()
+        }
+
+        mAdvancedUnlockViewModel.onDatabaseFileLoaded.observe(this) {
+            onDatabaseLoaded(it)
+        }
     }
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
@@ -114,17 +143,6 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         return rootView
     }
 
-    private data class ActivityResult(var requestCode: Int, var resultCode: Int, var data: Intent?)
-    private var activityResult: ActivityResult? = null
-
-    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
-        // To wait resume
-        if (keepConnection) {
-            activityResult = ActivityResult(requestCode, resultCode, data)
-        }
-        keepConnection = false
-    }
-
     override fun onResume() {
         super.onResume()
         context?.let {
@@ -154,32 +172,38 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         return super.onOptionsItemSelected(item)
     }
 
-    fun loadDatabase(databaseUri: Uri?, autoOpenPrompt: Boolean) {
+    private fun onDatabaseLoaded(databaseUri: Uri?) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             // To get device credential unlock result, only if same database uri
             if (databaseUri != null
                     && mAdvancedUnlockEnabled) {
-                activityResult?.let {
+                val deviceCredentialAuthSucceeded = mAdvancedUnlockViewModel.deviceCredentialAuthSucceeded
+                deviceCredentialAuthSucceeded?.let {
                     if (databaseUri == databaseFileUri) {
-                        advancedUnlockManager?.onActivityResult(it.requestCode, it.resultCode)
+                        if (deviceCredentialAuthSucceeded == true) {
+                            advancedUnlockManager?.advancedUnlockCallback?.onAuthenticationSucceeded()
+                        } else {
+                            advancedUnlockManager?.advancedUnlockCallback?.onAuthenticationFailed()
+                        }
                     } else {
                         disconnect()
                     }
                 } ?: run {
-                    this.mAutoOpenPrompt = autoOpenPrompt
-                    connect(databaseUri)
+                    if (databaseUri != databaseFileUri) {
+                        connect(databaseUri)
+                    }
                 }
             } else {
                 disconnect()
             }
-            activityResult = null
+            mAdvancedUnlockViewModel.deviceCredentialAuthSucceeded = null
         }
     }
 
     /**
      * Check unlock availability and change the current mode depending of device's state
      */
-    fun checkUnlockAvailability() {
+    private fun checkUnlockAvailability() {
         context?.let { context ->
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                 allowOpenBiometricPrompt = true
@@ -317,7 +341,8 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
                 if (cryptoPrompt.isDeviceCredentialOperation)
                     keepConnection = true
                 try {
-                    advancedUnlockManager?.openAdvancedUnlockPrompt(cryptoPrompt)
+                    advancedUnlockManager?.openAdvancedUnlockPrompt(cryptoPrompt,
+                        mDeviceCredentialResultLauncher)
                 } catch (e: Exception) {
                     Log.e(TAG, "Unable to open advanced unlock prompt", e)
                     setAdvancedUnlockedTitleView(R.string.advanced_unlock_prompt_not_initialized)
@@ -369,8 +394,7 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         } ?: throw Exception("AdvancedUnlockManager not initialized")
     }
 
-    @Synchronized
-    fun initAdvancedUnlockMode() {
+    private fun initAdvancedUnlockMode() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             mAllowAdvancedUnlockMenu = false
             try {
@@ -444,6 +468,7 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
 
     @RequiresApi(Build.VERSION_CODES.M)
     fun deleteEncryptedDatabaseKey() {
+        mAllowAdvancedUnlockMenu = false
         advancedUnlockManager?.closeBiometricPrompt()
         databaseFileUri?.let { databaseUri ->
             cipherDatabaseAction.deleteByDatabaseUri(databaseUri) {
@@ -516,6 +541,11 @@ class AdvancedUnlockFragment: StylishFragment(), AdvancedUnlockManager.AdvancedU
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.M)
+    override fun onUnrecoverableKeyException(e: Exception) {
+        setAdvancedUnlockedMessageView(R.string.advanced_unlock_invalid_key)
+    }
+
     @RequiresApi(Build.VERSION_CODES.M)
     override fun onInvalidKeyException(e: Exception) {
         setAdvancedUnlockedMessageView(R.string.advanced_unlock_invalid_key)

app/src/main/java/com/kunzisoft/keepass/biometric/AdvancedUnlockManager.kt

@@ -19,15 +19,18 @@
  */
 package com.kunzisoft.keepass.biometric
 
-import android.app.Activity
 import android.app.KeyguardManager
 import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
 import android.os.Build
 import android.security.keystore.KeyGenParameterSpec
 import android.security.keystore.KeyPermanentlyInvalidatedException
 import android.security.keystore.KeyProperties
 import android.util.Base64
 import android.util.Log
+import android.widget.Toast
+import androidx.activity.result.ActivityResultLauncher
 import androidx.annotation.RequiresApi
 import androidx.biometric.BiometricManager
 import androidx.biometric.BiometricManager.Authenticators.*
@@ -35,6 +38,7 @@ import androidx.biometric.BiometricPrompt
 import androidx.core.content.ContextCompat
 import androidx.fragment.app.FragmentActivity
 import com.kunzisoft.keepass.R
+import com.kunzisoft.keepass.app.database.CipherDatabaseAction
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import java.security.KeyStore
 import java.security.UnrecoverableKeyException
@@ -136,18 +140,24 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
                         // and the constrains (purposes) in the constructor of the Builder
                         keyGenerator?.init(
                                 KeyGenParameterSpec.Builder(
-                                        ADVANCED_UNLOCK_KEYSTORE_KEY,
-                                        KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
-                                        .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
-                                        .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
+                                    ADVANCED_UNLOCK_KEYSTORE_KEY,
+                                    KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
+                                    .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
+                                    .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
+                                    .apply {
                                         // Require the user to authenticate with a fingerprint to authorize every use
                                         // of the key, don't use it for device credential because it's the user authentication
-                                        .apply {
-                                            if (biometricUnlockEnable) {
-                                                setUserAuthenticationRequired(true)
-                                            }
+                                        if (biometricUnlockEnable) {
+                                            setUserAuthenticationRequired(true)
                                         }
-                                        .build())
+                                        // To store in the security chip
+                                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P
+                                            && retrieveContext().packageManager.hasSystemFeature(
+                                                PackageManager.FEATURE_STRONGBOX_KEYSTORE)) {
+                                            setIsStrongBoxBacked(true)
+                                        }
+                                    }
+                                    .build())
                         keyGenerator?.generateKey()
                     }
                 } catch (e: Exception) {
@@ -164,8 +174,12 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         return null
     }
 
-    fun initEncryptData(actionIfCypherInit
-                        : (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit) {
+    fun initEncryptData(actionIfCypherInit: (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit,) {
+        initEncryptData(actionIfCypherInit, true)
+    }
+
+    private fun initEncryptData(actionIfCypherInit: (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit,
+                                firstLaunch: Boolean) {
         if (!isKeyManagerInitialized) {
             return
         }
@@ -185,10 +199,15 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
             }
         } catch (unrecoverableKeyException: UnrecoverableKeyException) {
             Log.e(TAG, "Unable to initialize encrypt data", unrecoverableKeyException)
-            advancedUnlockCallback?.onInvalidKeyException(unrecoverableKeyException)
+            advancedUnlockCallback?.onUnrecoverableKeyException(unrecoverableKeyException)
         } catch (invalidKeyException: KeyPermanentlyInvalidatedException) {
             Log.e(TAG, "Unable to initialize encrypt data", invalidKeyException)
-            advancedUnlockCallback?.onInvalidKeyException(invalidKeyException)
+            if (firstLaunch) {
+                deleteAllEntryKeysInKeystoreForBiometric(retrieveContext())
+                initEncryptData(actionIfCypherInit, false)
+            } else {
+                advancedUnlockCallback?.onInvalidKeyException(invalidKeyException)
+            }
         } catch (e: Exception) {
             Log.e(TAG, "Unable to initialize encrypt data", e)
             advancedUnlockCallback?.onGenericException(e)
@@ -214,8 +233,14 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         }
     }
 
-    fun initDecryptData(ivSpecValue: String, actionIfCypherInit
-                        : (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit) {
+    fun initDecryptData(ivSpecValue: String,
+                        actionIfCypherInit: (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit) {
+        initDecryptData(ivSpecValue, actionIfCypherInit, true)
+    }
+
+    private fun initDecryptData(ivSpecValue: String,
+                        actionIfCypherInit: (cryptoPrompt: AdvancedUnlockCryptoPrompt) -> Unit,
+                        firstLaunch: Boolean = true) {
         if (!isKeyManagerInitialized) {
             return
         }
@@ -239,10 +264,20 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
             }
         } catch (unrecoverableKeyException: UnrecoverableKeyException) {
             Log.e(TAG, "Unable to initialize decrypt data", unrecoverableKeyException)
-            deleteKeystoreKey()
+            if (firstLaunch) {
+                deleteKeystoreKey()
+                initDecryptData(ivSpecValue, actionIfCypherInit, firstLaunch)
+            } else {
+                advancedUnlockCallback?.onUnrecoverableKeyException(unrecoverableKeyException)
+            }
         } catch (invalidKeyException: KeyPermanentlyInvalidatedException) {
             Log.e(TAG, "Unable to initialize decrypt data", invalidKeyException)
-            advancedUnlockCallback?.onInvalidKeyException(invalidKeyException)
+            if (firstLaunch) {
+                deleteAllEntryKeysInKeystoreForBiometric(retrieveContext())
+                initDecryptData(ivSpecValue, actionIfCypherInit, firstLaunch)
+            } else {
+                advancedUnlockCallback?.onInvalidKeyException(invalidKeyException)
+            }
         } catch (e: Exception) {
             Log.e(TAG, "Unable to initialize decrypt data", e)
             advancedUnlockCallback?.onGenericException(e)
@@ -278,9 +313,9 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         }
     }
 
-    @Suppress("DEPRECATION")
-    @Synchronized
-    fun openAdvancedUnlockPrompt(cryptoPrompt: AdvancedUnlockCryptoPrompt) {
+    fun openAdvancedUnlockPrompt(cryptoPrompt: AdvancedUnlockCryptoPrompt,
+                                 deviceCredentialResultLauncher: ActivityResultLauncher<Intent>
+    ) {
         // Init advanced unlock prompt
         if (biometricPrompt == null) {
             biometricPrompt = BiometricPrompt(retrieveContext(),
@@ -311,20 +346,10 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         }
         else if (cryptoPrompt.isDeviceCredentialOperation) {
             val keyGuardManager = ContextCompat.getSystemService(retrieveContext(), KeyguardManager::class.java)
-            retrieveContext().startActivityForResult(
-                    keyGuardManager?.createConfirmDeviceCredentialIntent(promptTitle, promptDescription),
-                    REQUEST_DEVICE_CREDENTIAL)
-        }
-    }
-
-    @Synchronized
-    fun onActivityResult(requestCode: Int, resultCode: Int) {
-        if (requestCode == REQUEST_DEVICE_CREDENTIAL) {
-            if (resultCode == Activity.RESULT_OK) {
-                advancedUnlockCallback?.onAuthenticationSucceeded()
-            } else {
-                advancedUnlockCallback?.onAuthenticationFailed()
-            }
+            @Suppress("DEPRECATION")
+            deviceCredentialResultLauncher.launch(
+                keyGuardManager?.createConfirmDeviceCredentialIntent(promptTitle, promptDescription)
+            )
         }
     }
 
@@ -333,6 +358,7 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
     }
 
     interface AdvancedUnlockErrorCallback {
+        fun onUnrecoverableKeyException(e: Exception)
         fun onInvalidKeyException(e: Exception)
         fun onGenericException(e: Exception)
     }
@@ -355,8 +381,6 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
         private const val ADVANCED_UNLOCK_BLOCKS_MODES = KeyProperties.BLOCK_MODE_CBC
         private const val ADVANCED_UNLOCK_ENCRYPTION_PADDING = KeyProperties.ENCRYPTION_PADDING_PKCS7
 
-        private const val REQUEST_DEVICE_CREDENTIAL = 556
-
         @RequiresApi(api = Build.VERSION_CODES.M)
         fun canAuthenticate(context: Context): Int {
             return try {
@@ -449,6 +473,10 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
 
                     override fun handleDecryptedResult(decryptedValue: String) {}
 
+                    override fun onUnrecoverableKeyException(e: Exception) {
+                        advancedCallback.onUnrecoverableKeyException(e)
+                    }
+
                     override fun onInvalidKeyException(e: Exception) {
                         advancedCallback.onInvalidKeyException(e)
                     }
@@ -460,6 +488,33 @@ class AdvancedUnlockManager(private var retrieveContext: () -> FragmentActivity)
                 deleteKeystoreKey()
             }
         }
+
+        fun deleteAllEntryKeysInKeystoreForBiometric(activity: FragmentActivity) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                deleteEntryKeyInKeystoreForBiometric(
+                    activity,
+                    object : AdvancedUnlockErrorCallback {
+                        fun showException(e: Exception) {
+                            Toast.makeText(activity,
+                                activity.getString(R.string.advanced_unlock_scanning_error, e.localizedMessage),
+                                Toast.LENGTH_SHORT).show()
+                        }
+
+                        override fun onUnrecoverableKeyException(e: Exception) {
+                            showException(e)
+                        }
+
+                        override fun onInvalidKeyException(e: Exception) {
+                            showException(e)
+                        }
+
+                        override fun onGenericException(e: Exception) {
+                            showException(e)
+                        }
+                    })
+            }
+            CipherDatabaseAction.getInstance(activity.applicationContext).deleteAll()
+        }
     }
 
 }

app/src/main/java/com/kunzisoft/keepass/database/action/AssignPasswordInDatabaseRunnable.kt

@@ -43,7 +43,7 @@ open class AssignPasswordInDatabaseRunnable (
             System.arraycopy(database.masterKey, 0, mBackupKey!!, 0, mBackupKey!!.size)
 
             val uriInputStream = UriUtil.getUriInputStream(context.contentResolver, mMainCredential.keyFileUri)
-            database.retrieveMasterKey(mMainCredential.masterPassword, uriInputStream)
+            database.assignMasterKey(mMainCredential.masterPassword, uriInputStream)
         } catch (e: Exception) {
             erase(mBackupKey)
             setError(e)

app/src/main/java/com/kunzisoft/keepass/database/action/DatabaseTaskProvider.kt

@@ -27,6 +27,7 @@ import android.os.Bundle
 import android.os.IBinder
 import android.util.Log
 import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
 import androidx.fragment.app.FragmentActivity
 import androidx.lifecycle.lifecycleScope
 import com.kunzisoft.keepass.R
@@ -53,6 +54,7 @@ import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_DELETE_ENTRY_HISTORY
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_DELETE_NODES_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_LOAD_TASK
+import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_MERGE_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_MOVE_NODES_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_RELOAD_TASK
 import com.kunzisoft.keepass.services.DatabaseTaskNotificationService.Companion.ACTION_DATABASE_REMOVE_UNLINKED_DATA_TASK
@@ -354,6 +356,13 @@ class DatabaseTaskProvider {
                 , ACTION_DATABASE_LOAD_TASK)
     }
 
+    fun startDatabaseMerge(fixDuplicateUuid: Boolean) {
+        start(Bundle().apply {
+            putBoolean(DatabaseTaskNotificationService.FIX_DUPLICATE_UUID_KEY, fixDuplicateUuid)
+        }
+            , ACTION_DATABASE_MERGE_TASK)
+    }
+
     fun startDatabaseReload(fixDuplicateUuid: Boolean) {
         start(Bundle().apply {
             putBoolean(DatabaseTaskNotificationService.FIX_DUPLICATE_UUID_KEY, fixDuplicateUuid)
@@ -361,6 +370,19 @@ class DatabaseTaskProvider {
                 , ACTION_DATABASE_RELOAD_TASK)
     }
 
+    fun askToStartDatabaseReload(conditionToAsk: Boolean, approved: () -> Unit) {
+        if (conditionToAsk) {
+            AlertDialog.Builder(context)
+                .setMessage(R.string.warning_database_info_reloaded)
+                .setNegativeButton(android.R.string.cancel, null)
+                .setPositiveButton(android.R.string.ok) { _, _ ->
+                    approved.invoke()
+                }.create().show()
+        } else {
+            approved.invoke()
+        }
+    }
+
     fun startDatabaseAssignPassword(databaseUri: Uri,
                                     mainCredential: MainCredential) {
 

app/src/main/java/com/kunzisoft/keepass/database/action/LoadDatabaseRunnable.kt

@@ -60,7 +60,6 @@ class LoadDatabaseRunnable(private val context: Context,
                     { memoryWanted ->
                         BinaryData.canMemoryBeAllocatedInRAM(context, memoryWanted)
                     },
-                    LoadedKey.generateNewCipherKey(),
                     mFixDuplicateUUID,
                     progressTaskUpdater)
         }

app/src/main/java/com/kunzisoft/keepass/database/action/MergeDatabaseRunnable.kt

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.database.action
+
+import android.content.Context
+import com.kunzisoft.keepass.database.element.Database
+import com.kunzisoft.keepass.database.element.binary.BinaryData
+import com.kunzisoft.keepass.database.element.binary.LoadedKey
+import com.kunzisoft.keepass.database.exception.LoadDatabaseException
+import com.kunzisoft.keepass.settings.PreferencesUtil
+import com.kunzisoft.keepass.tasks.ActionRunnable
+import com.kunzisoft.keepass.tasks.ProgressTaskUpdater
+import com.kunzisoft.keepass.utils.UriUtil
+
+class MergeDatabaseRunnable(private val context: Context,
+                            private val mDatabase: Database,
+                            private val progressTaskUpdater: ProgressTaskUpdater?,
+                            private val mLoadDatabaseResult: ((Result) -> Unit)?)
+    : ActionRunnable() {
+
+    override fun onStartRun() {
+        mDatabase.wasReloaded = true
+    }
+
+    override fun onActionRun() {
+        try {
+            mDatabase.mergeData(context.contentResolver,
+                    { memoryWanted ->
+                        BinaryData.canMemoryBeAllocatedInRAM(context, memoryWanted)
+                    },
+                    progressTaskUpdater)
+        } catch (e: LoadDatabaseException) {
+            setError(e)
+        }
+
+        if (result.isSuccess) {
+            // Register the current time to init the lock timer
+            PreferencesUtil.saveCurrentTime(context)
+        }
+    }
+
+    override fun onFinishRun() {
+        mLoadDatabaseResult?.invoke(result)
+    }
+}

app/src/main/java/com/kunzisoft/keepass/database/action/ReloadDatabaseRunnable.kt

@@ -22,7 +22,6 @@ package com.kunzisoft.keepass.database.action
 import android.content.Context
 import com.kunzisoft.keepass.database.element.Database
 import com.kunzisoft.keepass.database.element.binary.BinaryData
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.exception.LoadDatabaseException
 import com.kunzisoft.keepass.settings.PreferencesUtil
 import com.kunzisoft.keepass.tasks.ActionRunnable
@@ -35,23 +34,18 @@ class ReloadDatabaseRunnable(private val context: Context,
                              private val mLoadDatabaseResult: ((Result) -> Unit)?)
     : ActionRunnable() {
 
-    private var tempCipherKey: LoadedKey? = null
-
     override fun onStartRun() {
-        tempCipherKey = mDatabase.binaryCache.loadedCipherKey
         // Clear before we load
-        mDatabase.clear(UriUtil.getBinaryDir(context))
+        mDatabase.clearIndexesAndBinaries(UriUtil.getBinaryDir(context))
         mDatabase.wasReloaded = true
     }
 
     override fun onActionRun() {
         try {
             mDatabase.reloadData(context.contentResolver,
-                    UriUtil.getBinaryDir(context),
                     { memoryWanted ->
                         BinaryData.canMemoryBeAllocatedInRAM(context, memoryWanted)
                     },
-                    tempCipherKey ?: LoadedKey.generateNewCipherKey(),
                     progressTaskUpdater)
         } catch (e: LoadDatabaseException) {
             setError(e)
@@ -61,7 +55,6 @@ class ReloadDatabaseRunnable(private val context: Context,
             // Register the current time to init the lock timer
             PreferencesUtil.saveCurrentTime(context)
         } else {
-            tempCipherKey = null
             mDatabase.clearAndClose(context)
         }
     }

app/src/main/java/com/kunzisoft/keepass/database/action/SaveDatabaseRunnable.kt

@@ -34,6 +34,7 @@ open class SaveDatabaseRunnable(protected var context: Context,
     override fun onStartRun() {}
 
     override fun onActionRun() {
+        database.checkVersion()
         if (saveDatabase && result.isSuccess) {
             try {
                 database.saveData(context.contentResolver)

app/src/main/java/com/kunzisoft/keepass/database/action/node/ActionNodeDatabaseRunnable.kt

@@ -36,7 +36,11 @@ abstract class ActionNodeDatabaseRunnable(
     abstract fun nodeAction()
 
     override fun onStartRun() {
-        nodeAction()
+        try {
+            nodeAction()
+        } catch (e: Exception) {
+            setError(e)
+        }
         super.onStartRun()
     }
 

app/src/main/java/com/kunzisoft/keepass/database/action/node/DeleteNodesRunnable.kt

@@ -40,7 +40,7 @@ class DeleteNodesRunnable(context: Context,
 
         foreachNode@ for(nodeToDelete in mNodesToDelete) {
             mOldParent = nodeToDelete.parent
-            mOldParent?.touch(modified = false, touchParents = true)
+            nodeToDelete.touch(modified = true, touchParents = true)
 
             when (nodeToDelete.type) {
                 Type.GROUP -> {
@@ -50,9 +50,9 @@ class DeleteNodesRunnable(context: Context,
                     // Remove Node from parent
                     mCanRecycle = database.canRecycle(groupToDelete)
                     if (mCanRecycle) {
-                        groupToDelete.touch(modified = false, touchParents = true)
                         database.recycle(groupToDelete, context.resources)
                         groupToDelete.setPreviousParentGroup(mOldParent)
+                        groupToDelete.touch(modified = true, touchParents = true)
                     } else {
                         database.deleteGroup(groupToDelete)
                     }
@@ -64,9 +64,9 @@ class DeleteNodesRunnable(context: Context,
                     // Remove Node from parent
                     mCanRecycle = database.canRecycle(entryToDelete)
                     if (mCanRecycle) {
-                        entryToDelete.touch(modified = false, touchParents = true)
                         database.recycle(entryToDelete, context.resources)
                         entryToDelete.setPreviousParentGroup(mOldParent)
+                        entryToDelete.touch(modified = true, touchParents = true)
                     } else {
                         database.deleteEntry(entryToDelete)
                     }

app/src/main/java/com/kunzisoft/keepass/database/action/node/MoveNodesRunnable.kt

@@ -43,6 +43,7 @@ class MoveNodesRunnable constructor(
         foreachNode@ for(nodeToMove in mNodesToMove) {
             // Move node in new parent
             mOldParent = nodeToMove.parent
+            nodeToMove.touch(modified = true, touchParents = true)
 
             when (nodeToMove.type) {
                 Type.GROUP -> {
@@ -52,9 +53,9 @@ class MoveNodesRunnable constructor(
                             // and if not in the current group
                             && groupToMove != mNewParent
                             && !mNewParent.isContainedIn(groupToMove)) {
-                        groupToMove.touch(modified = true, touchParents = true)
                         database.moveGroupTo(groupToMove, mNewParent)
                         groupToMove.setPreviousParentGroup(mOldParent)
+                        groupToMove.touch(modified = true, touchParents = true)
                     } else {
                         // Only finish thread
                         setError(MoveGroupDatabaseException())
@@ -67,9 +68,9 @@ class MoveNodesRunnable constructor(
                     if (mOldParent != mNewParent
                             // and root can contains entry
                             && (mNewParent != database.rootGroup || database.rootCanContainsEntry())) {
-                        entryToMove.touch(modified = true, touchParents = true)
                         database.moveEntryTo(entryToMove, mNewParent)
                         entryToMove.setPreviousParentGroup(mOldParent)
+                        entryToMove.touch(modified = true, touchParents = true)
                     } else {
                         // Only finish thread
                         setError(MoveEntryDatabaseException())

app/src/main/java/com/kunzisoft/keepass/database/action/node/UpdateGroupRunnable.kt

@@ -42,6 +42,9 @@ class UpdateGroupRunnable constructor(
             // Update group with new values
             mNewGroup.touch(modified = true, touchParents = true)
 
+            if (database.rootGroup == mOldGroup) {
+                database.rootGroup = mNewGroup
+            }
             // Only change data in index
             database.updateGroup(mNewGroup)
         }
@@ -50,6 +53,9 @@ class UpdateGroupRunnable constructor(
     override fun nodeFinish(): ActionNodesValues {
         if (!result.isSuccess) {
             // If we fail to save, back out changes to global structure
+            if (database.rootGroup == mNewGroup) {
+                database.rootGroup = mOldGroup
+            }
             database.updateGroup(mOldGroup)
         }
 

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursor.kt

@@ -1,89 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import android.database.MatrixCursor
-import android.provider.BaseColumns
-import com.kunzisoft.keepass.database.element.DateInstant
-import com.kunzisoft.keepass.database.element.entry.EntryVersioned
-import com.kunzisoft.keepass.database.element.icon.IconImage
-import com.kunzisoft.keepass.database.element.icon.IconImageCustom
-import com.kunzisoft.keepass.database.element.icon.IconImageStandard
-import com.kunzisoft.keepass.database.element.node.NodeId
-import java.util.*
-
-abstract class EntryCursor<EntryId, PwEntryV : EntryVersioned<*, EntryId, *, *>> : MatrixCursor(arrayOf(
-        _ID,
-        COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_TITLE,
-        COLUMN_INDEX_ICON_STANDARD,
-        COLUMN_INDEX_ICON_CUSTOM_UUID_MOST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_ICON_CUSTOM_UUID_LEAST_SIGNIFICANT_BITS,
-        COLUMN_INDEX_USERNAME,
-        COLUMN_INDEX_PASSWORD,
-        COLUMN_INDEX_URL,
-        COLUMN_INDEX_NOTES,
-        COLUMN_INDEX_EXPIRY_TIME,
-        COLUMN_INDEX_EXPIRES
-    )) {
-
-    protected var entryId: Long = 0
-
-    abstract fun addEntry(entry: PwEntryV)
-
-    abstract fun getPwNodeId(): NodeId<EntryId>
-
-    open fun populateEntry(pwEntry: PwEntryV,
-                           retrieveStandardIcon: (Int) -> IconImageStandard,
-                           retrieveCustomIcon: (UUID) -> IconImageCustom) {
-        pwEntry.nodeId = getPwNodeId()
-        pwEntry.title = getString(getColumnIndex(COLUMN_INDEX_TITLE))
-
-        val iconStandard = retrieveStandardIcon.invoke(getInt(getColumnIndex(COLUMN_INDEX_ICON_STANDARD)))
-        val iconCustom = retrieveCustomIcon.invoke(UUID(getLong(getColumnIndex(COLUMN_INDEX_ICON_CUSTOM_UUID_MOST_SIGNIFICANT_BITS)),
-                getLong(getColumnIndex(COLUMN_INDEX_ICON_CUSTOM_UUID_LEAST_SIGNIFICANT_BITS))))
-        pwEntry.icon = IconImage(iconStandard, iconCustom)
-
-        pwEntry.username = getString(getColumnIndex(COLUMN_INDEX_USERNAME))
-        pwEntry.password = getString(getColumnIndex(COLUMN_INDEX_PASSWORD))
-        pwEntry.url = getString(getColumnIndex(COLUMN_INDEX_URL))
-        pwEntry.notes = getString(getColumnIndex(COLUMN_INDEX_NOTES))
-        pwEntry.expiryTime = DateInstant(getString(getColumnIndex(COLUMN_INDEX_EXPIRY_TIME)))
-        pwEntry.expires = getString(getColumnIndex(COLUMN_INDEX_EXPIRES))
-                                        .toLowerCase(Locale.ENGLISH) != "false"
-    }
-
-    companion object {
-        const val _ID = BaseColumns._ID
-        const val COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS = "UUID_most_significant_bits"
-        const val COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS = "UUID_least_significant_bits"
-        const val COLUMN_INDEX_TITLE = "title"
-        const val COLUMN_INDEX_ICON_STANDARD = "icon_standard"
-        const val COLUMN_INDEX_ICON_CUSTOM_UUID_MOST_SIGNIFICANT_BITS = "icon_custom_UUID_most_significant_bits"
-        const val COLUMN_INDEX_ICON_CUSTOM_UUID_LEAST_SIGNIFICANT_BITS = "icon_custom_UUID_least_significant_bits"
-        const val COLUMN_INDEX_USERNAME = "username"
-        const val COLUMN_INDEX_PASSWORD = "password"
-        const val COLUMN_INDEX_URL = "URL"
-        const val COLUMN_INDEX_NOTES = "notes"
-        const val COLUMN_INDEX_EXPIRY_TIME = "expiry_time"
-        const val COLUMN_INDEX_EXPIRES = "expires"
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursorKDB.kt

@@ -1,45 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import com.kunzisoft.keepass.database.element.entry.EntryKDB
-
-class EntryCursorKDB : EntryCursorUUID<EntryKDB>() {
-
-    override fun addEntry(entry: EntryKDB) {
-        addRow(arrayOf(
-                entryId,
-                entry.id.mostSignificantBits,
-                entry.id.leastSignificantBits,
-                entry.title,
-                entry.icon.standard.id,
-                entry.icon.custom.uuid.mostSignificantBits,
-                entry.icon.custom.uuid.leastSignificantBits,
-                entry.username,
-                entry.password,
-                entry.url,
-                entry.notes,
-                entry.expiryTime,
-                entry.expires
-        ))
-        entryId++
-    }
-
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursorKDBX.kt

@@ -1,73 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import com.kunzisoft.keepass.database.element.entry.EntryKDBX
-import com.kunzisoft.keepass.database.element.icon.IconImageCustom
-import com.kunzisoft.keepass.database.element.icon.IconImageStandard
-import java.util.*
-
-class EntryCursorKDBX : EntryCursorUUID<EntryKDBX>() {
-
-    private val extraFieldCursor: ExtraFieldCursor = ExtraFieldCursor()
-
-    override fun addEntry(entry: EntryKDBX) {
-        addRow(arrayOf(
-                entryId,
-                entry.id.mostSignificantBits,
-                entry.id.leastSignificantBits,
-                entry.title,
-                entry.icon.standard.id,
-                entry.icon.custom.uuid.mostSignificantBits,
-                entry.icon.custom.uuid.leastSignificantBits,
-                entry.username,
-                entry.password,
-                entry.url,
-                entry.notes,
-                entry.expiryTime,
-                entry.expires
-        ))
-
-        entry.doForEachDecodedCustomField { field ->
-            extraFieldCursor.addExtraField(entryId, field)
-        }
-
-        entryId++
-    }
-
-    override fun populateEntry(pwEntry: EntryKDBX,
-                               retrieveStandardIcon: (Int) -> IconImageStandard,
-                               retrieveCustomIcon: (UUID) -> IconImageCustom) {
-        super.populateEntry(pwEntry, retrieveStandardIcon, retrieveCustomIcon)
-
-        // Retrieve extra fields
-        if (extraFieldCursor.moveToFirst()) {
-            while (!extraFieldCursor.isAfterLast) {
-                // Add a new extra field only if entryId is the one we want
-                if (extraFieldCursor.getLong(extraFieldCursor
-                                .getColumnIndex(ExtraFieldCursor.FOREIGN_KEY_ENTRY_ID))
-                        == getLong(getColumnIndex(_ID))) {
-                    extraFieldCursor.populateExtraFieldInEntry(pwEntry)
-                }
-                extraFieldCursor.moveToNext()
-            }
-        }
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/EntryCursorUUID.kt

@@ -1,34 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import com.kunzisoft.keepass.database.element.entry.EntryVersioned
-import com.kunzisoft.keepass.database.element.node.NodeId
-import com.kunzisoft.keepass.database.element.node.NodeIdUUID
-import java.util.*
-
-abstract class EntryCursorUUID<EntryV: EntryVersioned<*, UUID, *, *>>: EntryCursor<UUID, EntryV>() {
-
-    override fun getPwNodeId(): NodeId<UUID> {
-        return NodeIdUUID(
-                UUID(getLong(getColumnIndex(COLUMN_INDEX_UUID_MOST_SIGNIFICANT_BITS)),
-                        getLong(getColumnIndex(COLUMN_INDEX_UUID_LEAST_SIGNIFICANT_BITS))))
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/cursor/ExtraFieldCursor.kt

@@ -1,62 +0,0 @@
-/*
- * Copyright 2019 Jeremy Jamet / Kunzisoft.
- *
- * This file is part of KeePassDX.
- *
- *  KeePassDX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  KeePassDX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.kunzisoft.keepass.database.cursor
-
-import android.database.MatrixCursor
-import android.provider.BaseColumns
-import com.kunzisoft.keepass.database.element.Field
-
-import com.kunzisoft.keepass.database.element.entry.EntryKDBX
-import com.kunzisoft.keepass.database.element.security.ProtectedString
-
-class ExtraFieldCursor : MatrixCursor(arrayOf(
-        _ID,
-        FOREIGN_KEY_ENTRY_ID,
-        COLUMN_LABEL,
-        COLUMN_PROTECTION,
-        COLUMN_VALUE
-    )) {
-
-    private var fieldId: Long = 0
-
-    @Synchronized
-    fun addExtraField(entryId: Long, field: Field) {
-        addRow(arrayOf(fieldId,
-                entryId,
-                field.name,
-                if (field.protectedValue.isProtected) 1 else 0,
-                field.protectedValue.toString()))
-        fieldId++
-    }
-
-    fun populateExtraFieldInEntry(pwEntry: EntryKDBX) {
-        pwEntry.putField(getString(getColumnIndex(COLUMN_LABEL)),
-                ProtectedString(getInt(getColumnIndex(COLUMN_PROTECTION)) > 0,
-                        getString(getColumnIndex(COLUMN_VALUE))))
-    }
-
-    companion object {
-        const val _ID = BaseColumns._ID
-        const val FOREIGN_KEY_ENTRY_ID = "entry_id"
-        const val COLUMN_LABEL = "label"
-        const val COLUMN_PROTECTION = "protection"
-        const val COLUMN_VALUE = "value"
-    }
-}

app/src/main/java/com/kunzisoft/keepass/database/element/Database.kt

@@ -22,17 +22,16 @@ package com.kunzisoft.keepass.database.element
 import android.content.ContentResolver
 import android.content.Context
 import android.content.res.Resources
+import android.graphics.Color
 import android.net.Uri
-import android.os.Build
 import android.util.Log
-import com.kunzisoft.keepass.app.database.FileDatabaseHistoryAction
+import com.kunzisoft.androidclearchroma.ChromaUtil
 import com.kunzisoft.keepass.database.action.node.NodeHandler
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.kdf.KdfEngine
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.binary.BinaryCache
 import com.kunzisoft.keepass.database.element.binary.BinaryData
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDB
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
@@ -52,6 +51,7 @@ import com.kunzisoft.keepass.database.file.input.DatabaseInputKDB
 import com.kunzisoft.keepass.database.file.input.DatabaseInputKDBX
 import com.kunzisoft.keepass.database.file.output.DatabaseOutputKDB
 import com.kunzisoft.keepass.database.file.output.DatabaseOutputKDBX
+import com.kunzisoft.keepass.database.merge.DatabaseKDBXMerger
 import com.kunzisoft.keepass.database.search.SearchHelper
 import com.kunzisoft.keepass.database.search.SearchParameters
 import com.kunzisoft.keepass.icons.IconDrawableFactory
@@ -94,6 +94,8 @@ class Database {
      */
     var wasReloaded = false
 
+    var dataModifiedSinceLastLoading = false
+
     var loadTimestamp: Long? = null
         private set
 
@@ -112,7 +114,7 @@ class Database {
 
     private val iconsManager: IconsManager
         get() {
-            return mDatabaseKDB?.iconsManager ?: mDatabaseKDBX?.iconsManager ?: IconsManager(binaryCache)
+            return mDatabaseKDB?.iconsManager ?: mDatabaseKDBX?.iconsManager ?: IconsManager()
         }
 
     fun doForEachStandardIcons(action: (IconImageStandard) -> Unit) {
@@ -130,7 +132,7 @@ class Database {
         return iconsManager.doForEachCustomIcon(action)
     }
 
-    fun getCustomIcon(iconId: UUID): IconImageCustom {
+    fun getCustomIcon(iconId: UUID): IconImageCustom? {
         return iconsManager.getIcon(iconId)
     }
 
@@ -144,11 +146,12 @@ class Database {
 
     fun removeCustomIcon(customIcon: IconImageCustom) {
         iconDrawableFactory.clearFromCache(customIcon)
-        iconsManager.removeCustomIcon(binaryCache, customIcon.uuid)
+        iconsManager.removeCustomIcon(customIcon.uuid, binaryCache)
+        mDatabaseKDBX?.addDeletedObject(customIcon.uuid)
     }
 
     fun updateCustomIcon(customIcon: IconImageCustom) {
-        iconsManager.getIcon(customIcon.uuid).updateWith(customIcon)
+        iconsManager.getIcon(customIcon.uuid)?.updateWith(customIcon)
     }
 
     fun getTemplates(templateCreation: Boolean): List<Template> {
@@ -212,6 +215,7 @@ class Database {
         set(name) {
             mDatabaseKDBX?.name = name
             mDatabaseKDBX?.nameChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     val allowDescription: Boolean
@@ -224,33 +228,39 @@ class Database {
         set(description) {
             mDatabaseKDBX?.description = description
             mDatabaseKDBX?.descriptionChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
-    val allowDefaultUsername: Boolean
-        get() = mDatabaseKDBX != null
-        // TODO get() = mDatabaseKDB != null || mDatabaseKDBX != null
-
     var defaultUsername: String
         get() {
-            return mDatabaseKDBX?.defaultUserName ?: "" // TODO mDatabaseKDB default username
+            return mDatabaseKDB?.defaultUserName ?: mDatabaseKDBX?.defaultUserName ?: ""
         }
         set(username) {
+            mDatabaseKDB?.defaultUserName = username
             mDatabaseKDBX?.defaultUserName = username
             mDatabaseKDBX?.defaultUserNameChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
-    val allowCustomColor: Boolean
-        get() = mDatabaseKDBX != null
-        // TODO get() = mDatabaseKDB != null || mDatabaseKDBX != null
-
-    // with format "#000000"
-    var customColor: String
+    var customColor: Int?
         get() {
-            return mDatabaseKDBX?.color ?: "" // TODO mDatabaseKDB color
+            var colorInt: Int? = null
+            mDatabaseKDBX?.color?.let {
+                try {
+                    colorInt = Color.parseColor(it)
+                } catch (e: Exception) {}
+            }
+            return mDatabaseKDB?.color ?: colorInt
         }
         set(value) {
-            // TODO Check color string
-            mDatabaseKDBX?.color = value
+            mDatabaseKDB?.color = value
+            mDatabaseKDBX?.color = if (value == null) {
+                ""
+            } else {
+                ChromaUtil.getFormattedColorString(value, false)
+            }
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     val allowOTP: Boolean
@@ -259,6 +269,12 @@ class Database {
     val version: String
         get() = mDatabaseKDB?.version ?: mDatabaseKDBX?.version ?: "-"
 
+    fun checkVersion() {
+        mDatabaseKDBX?.getMinKdbxVersion()?.let {
+            mDatabaseKDBX?.kdbxVersion = it
+        }
+    }
+
     val type: Class<*>?
         get() = mDatabaseKDB?.javaClass ?: mDatabaseKDBX?.javaClass
 
@@ -274,6 +290,8 @@ class Database {
             value?.let {
                 mDatabaseKDBX?.compressionAlgorithm = it
             }
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     fun compressionForNewEntry(): Boolean {
@@ -290,6 +308,7 @@ class Database {
     fun updateDataBinaryCompression(oldCompression: CompressionAlgorithm,
                                     newCompression: CompressionAlgorithm) {
         mDatabaseKDBX?.changeBinaryCompression(oldCompression, newCompression)
+        dataModifiedSinceLastLoading = true
     }
 
     val allowNoMasterKey: Boolean
@@ -309,8 +328,6 @@ class Database {
         set(algorithm) {
             algorithm?.let {
                 mDatabaseKDBX?.encryptionAlgorithm = algorithm
-                mDatabaseKDBX?.setDataEngine(algorithm.cipherEngine)
-                mDatabaseKDBX?.cipherUuid = algorithm.uuid
             }
         }
 
@@ -323,13 +340,10 @@ class Database {
     var kdfEngine: KdfEngine?
         get() = mDatabaseKDB?.kdfEngine ?: mDatabaseKDBX?.kdfEngine
         set(kdfEngine) {
-            kdfEngine?.let {
-                if (mDatabaseKDBX?.kdfParameters?.uuid != kdfEngine.defaultParameters.uuid)
-                    mDatabaseKDBX?.kdfParameters = kdfEngine.defaultParameters
-                numberKeyEncryptionRounds = kdfEngine.defaultKeyRounds
-                memoryUsage = kdfEngine.defaultMemoryUsage
-                parallelism = kdfEngine.defaultParallelism
-            }
+            mDatabaseKDB?.kdfEngine = kdfEngine
+            mDatabaseKDBX?.kdfEngine = kdfEngine
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     fun getKeyDerivationName(): String {
@@ -341,6 +355,8 @@ class Database {
         set(numberRounds) {
             mDatabaseKDB?.numberKeyEncryptionRounds = numberRounds
             mDatabaseKDBX?.numberKeyEncryptionRounds = numberRounds
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var memoryUsage: Long
@@ -349,12 +365,16 @@ class Database {
         }
         set(memory) {
             mDatabaseKDBX?.memoryUsage = memory
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var parallelism: Long
         get() = mDatabaseKDBX?.parallelism ?: KdfEngine.UNKNOWN_VALUE
         set(parallelism) {
             mDatabaseKDBX?.parallelism = parallelism
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var masterKey: ByteArray
@@ -362,9 +382,11 @@ class Database {
         set(masterKey) {
             mDatabaseKDB?.masterKey = masterKey
             mDatabaseKDBX?.masterKey = masterKey
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
-    val rootGroup: Group?
+    var rootGroup: Group?
         get() {
             mDatabaseKDB?.rootGroup?.let {
                 return Group(it)
@@ -374,6 +396,25 @@ class Database {
             }
             return null
         }
+        set(value) {
+            value?.groupKDB?.let { rootKDB ->
+                mDatabaseKDB?.rootGroup = rootKDB
+            }
+            value?.groupKDBX?.let { rootKDBX ->
+                mDatabaseKDBX?.rootGroup = rootKDBX
+            }
+        }
+
+    val rootGroupIsVirtual: Boolean
+        get() {
+            mDatabaseKDB?.let {
+                return true
+            }
+            mDatabaseKDBX?.let {
+                return false
+            }
+            return true
+        }
 
     /**
      * Do not modify groups here, used for read only
@@ -393,6 +434,8 @@ class Database {
         }
         set(value) {
             mDatabaseKDBX?.historyMaxItems = value
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     var historyMaxSize: Long
@@ -401,6 +444,8 @@ class Database {
         }
         set(value) {
             mDatabaseKDBX?.historyMaxSize = value
+            mDatabaseKDBX?.settingsChanged = DateInstant()
+            dataModifiedSinceLastLoading = true
         }
 
     /**
@@ -421,15 +466,17 @@ class Database {
         } else {
             mDatabaseKDBX?.removeRecycleBin()
         }
+        mDatabaseKDBX?.recycleBinChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     val recycleBin: Group?
         get() {
             mDatabaseKDB?.backupGroup?.let {
-                return Group(it)
+                return getGroupById(it.nodeId) ?: Group(it)
             }
             mDatabaseKDBX?.recycleBin?.let {
-                return Group(it)
+                return getGroupById(it.nodeId) ?: Group(it)
             }
             return null
         }
@@ -439,8 +486,10 @@ class Database {
         if (group != null) {
             mDatabaseKDBX?.recycleBinUUID = group.nodeIdKDBX.id
         } else {
-            mDatabaseKDBX?.removeTemplatesGroup()
+            mDatabaseKDBX?.removeRecycleBin()
         }
+        mDatabaseKDBX?.recycleBinChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     /**
@@ -456,6 +505,8 @@ class Database {
 
     fun enableTemplates(enable: Boolean, templatesGroupName: String) {
         mDatabaseKDBX?.enableTemplatesGroup(enable, templatesGroupName)
+        mDatabaseKDBX?.entryTemplatesGroupChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     val templatesGroup: Group?
@@ -471,8 +522,10 @@ class Database {
         if (group != null) {
             mDatabaseKDBX?.entryTemplatesGroup = group.nodeIdKDBX.id
         } else {
-            mDatabaseKDBX?.entryTemplatesGroup
+            mDatabaseKDBX?.removeTemplatesGroup()
         }
+        mDatabaseKDBX?.entryTemplatesGroupChanged = DateInstant()
+        dataModifiedSinceLastLoading = true
     }
 
     val groupNamesNotAllowed: List<String>
@@ -499,6 +552,7 @@ class Database {
         this.fileUri = databaseUri
         // Set Database state
         this.loaded = true
+        this.dataModifiedSinceLastLoading = false
     }
 
     @Throws(LoadDatabaseException::class)
@@ -555,7 +609,6 @@ class Database {
                  contentResolver: ContentResolver,
                  cacheDirectory: File,
                  isRAMSufficient: (memoryWanted: Long) -> Boolean,
-                 tempCipherKey: LoadedKey,
                  fixDuplicateUUID: Boolean,
                  progressTaskUpdater: ProgressTaskUpdater?) {
 
@@ -576,73 +629,156 @@ class Database {
             // Read database stream for the first time
             readDatabaseStream(contentResolver, uri,
                     { databaseInputStream ->
-                        DatabaseInputKDB(cacheDirectory, isRAMSufficient)
-                                .openDatabase(databaseInputStream,
-                                        mainCredential.masterPassword,
-                                        keyFileInputStream,
-                                        tempCipherKey,
-                                        progressTaskUpdater,
-                                        fixDuplicateUUID)
+                        val databaseKDB = DatabaseKDB().apply {
+                            binaryCache.cacheDirectory = cacheDirectory
+                            changeDuplicateId = fixDuplicateUUID
+                        }
+                        DatabaseInputKDB(databaseKDB)
+                            .openDatabase(databaseInputStream,
+                                mainCredential.masterPassword,
+                                keyFileInputStream,
+                                progressTaskUpdater)
+                        databaseKDB
                     },
                     { databaseInputStream ->
-                        DatabaseInputKDBX(cacheDirectory, isRAMSufficient)
-                                .openDatabase(databaseInputStream,
-                                        mainCredential.masterPassword,
-                                        keyFileInputStream,
-                                        tempCipherKey,
-                                        progressTaskUpdater,
-                                        fixDuplicateUUID)
+                        val databaseKDBX = DatabaseKDBX().apply {
+                            binaryCache.cacheDirectory = cacheDirectory
+                            changeDuplicateId = fixDuplicateUUID
+                        }
+                        DatabaseInputKDBX(databaseKDBX).apply {
+                            setMethodToCheckIfRAMIsSufficient(isRAMSufficient)
+                            openDatabase(databaseInputStream,
+                                mainCredential.masterPassword,
+                                keyFileInputStream,
+                                progressTaskUpdater)
+                        }
+                        databaseKDBX
                     }
             )
         } catch (e: FileNotFoundException) {
-            Log.e(TAG, "Unable to load keyfile", e)
-            throw FileNotFoundDatabaseException()
+            throw FileNotFoundDatabaseException("Unable to load the keyfile")
         } catch (e: LoadDatabaseException) {
             throw e
         } catch (e: Exception) {
             throw LoadDatabaseException(e)
         } finally {
             keyFileInputStream?.close()
+            dataModifiedSinceLastLoading = false
+        }
+    }
+
+    fun isMergeDataAllowed(): Boolean {
+        return mDatabaseKDBX != null
+    }
+
+    @Throws(LoadDatabaseException::class)
+    fun mergeData(contentResolver: ContentResolver,
+                  isRAMSufficient: (memoryWanted: Long) -> Boolean,
+                  progressTaskUpdater: ProgressTaskUpdater?) {
+
+        mDatabaseKDB?.let {
+            throw IODatabaseException("Unable to merge from a database V1")
+        }
+
+        // New database instance to get new changes
+        val databaseToMerge = Database()
+        databaseToMerge.fileUri = this.fileUri
+
+        try {
+            databaseToMerge.fileUri?.let { databaseUri ->
+
+                val databaseKDB = DatabaseKDB()
+                val databaseKDBX = DatabaseKDBX()
+
+                databaseToMerge.readDatabaseStream(contentResolver, databaseUri,
+                    { databaseInputStream ->
+                        DatabaseInputKDB(databaseKDB)
+                            .openDatabase(databaseInputStream,
+                                masterKey,
+                                progressTaskUpdater)
+                        databaseKDB
+                    },
+                    { databaseInputStream ->
+                        DatabaseInputKDBX(databaseKDBX).apply {
+                            setMethodToCheckIfRAMIsSufficient(isRAMSufficient)
+                            openDatabase(databaseInputStream,
+                                masterKey,
+                                progressTaskUpdater)
+                        }
+                        databaseKDBX
+                    }
+                )
+
+                mDatabaseKDBX?.let { currentDatabaseKDBX ->
+                    val databaseMerger = DatabaseKDBXMerger(currentDatabaseKDBX).apply {
+                        this.isRAMSufficient = isRAMSufficient
+                    }
+                    databaseToMerge.mDatabaseKDB?.let { databaseKDBToMerge ->
+                        databaseMerger.merge(databaseKDBToMerge)
+                    }
+                    databaseToMerge.mDatabaseKDBX?.let { databaseKDBXToMerge ->
+                        databaseMerger.merge(databaseKDBXToMerge)
+                    }
+                }
+            } ?: run {
+                throw IODatabaseException("Database URI is null, database cannot be reloaded")
+            }
+        } catch (e: FileNotFoundException) {
+            throw FileNotFoundDatabaseException("Unable to load the keyfile")
+        } catch (e: LoadDatabaseException) {
+            throw e
+        } catch (e: Exception) {
+            throw LoadDatabaseException(e)
+        } finally {
+            databaseToMerge.clearAndClose()
         }
     }
 
     @Throws(LoadDatabaseException::class)
     fun reloadData(contentResolver: ContentResolver,
-                   cacheDirectory: File,
                    isRAMSufficient: (memoryWanted: Long) -> Boolean,
-                   tempCipherKey: LoadedKey,
                    progressTaskUpdater: ProgressTaskUpdater?) {
 
         // Retrieve the stream from the old database URI
         try {
             fileUri?.let { oldDatabaseUri ->
                 readDatabaseStream(contentResolver, oldDatabaseUri,
-                        { databaseInputStream ->
-                            DatabaseInputKDB(cacheDirectory, isRAMSufficient)
-                                    .openDatabase(databaseInputStream,
-                                            masterKey,
-                                            tempCipherKey,
-                                            progressTaskUpdater)
-                        },
-                        { databaseInputStream ->
-                            DatabaseInputKDBX(cacheDirectory, isRAMSufficient)
-                                    .openDatabase(databaseInputStream,
-                                            masterKey,
-                                            tempCipherKey,
-                                            progressTaskUpdater)
+                    { databaseInputStream ->
+                        val databaseKDB = DatabaseKDB()
+                        mDatabaseKDB?.let {
+                            databaseKDB.binaryCache = it.binaryCache
                         }
+                        DatabaseInputKDB(databaseKDB)
+                            .openDatabase(databaseInputStream,
+                                masterKey,
+                                progressTaskUpdater)
+                        databaseKDB
+                    },
+                    { databaseInputStream ->
+                        val databaseKDBX = DatabaseKDBX()
+                        mDatabaseKDBX?.let {
+                            databaseKDBX.binaryCache = it.binaryCache
+                        }
+                        DatabaseInputKDBX(databaseKDBX).apply {
+                            setMethodToCheckIfRAMIsSufficient(isRAMSufficient)
+                            openDatabase(databaseInputStream,
+                                masterKey,
+                                progressTaskUpdater)
+                        }
+                        databaseKDBX
+                    }
                 )
             } ?: run {
-                Log.e(TAG, "Database URI is null, database cannot be reloaded")
-                throw IODatabaseException()
+                throw IODatabaseException("Database URI is null, database cannot be reloaded")
             }
         } catch (e: FileNotFoundException) {
-            Log.e(TAG, "Unable to load keyfile", e)
-            throw FileNotFoundDatabaseException()
+            throw FileNotFoundDatabaseException("Unable to load the keyfile")
         } catch (e: LoadDatabaseException) {
             throw e
         } catch (e: Exception) {
             throw LoadDatabaseException(e)
+        } finally {
+            dataModifiedSinceLastLoading = false
         }
     }
 
@@ -682,7 +818,7 @@ class Database {
 
     val attachmentPool: AttachmentPool
         get() {
-            return mDatabaseKDB?.attachmentPool ?: mDatabaseKDBX?.attachmentPool ?: AttachmentPool(binaryCache)
+            return mDatabaseKDB?.attachmentPool ?: mDatabaseKDBX?.attachmentPool ?: AttachmentPool()
         }
 
     val allowMultipleAttachments: Boolean
@@ -695,8 +831,8 @@ class Database {
         }
 
     fun buildNewBinaryAttachment(): BinaryData? {
-        return mDatabaseKDB?.buildNewAttachment()
-                ?: mDatabaseKDBX?.buildNewAttachment( false,
+        return mDatabaseKDB?.buildNewBinaryAttachment()
+                ?: mDatabaseKDBX?.buildNewBinaryAttachment( false,
                         compressionForNewEntry(),
                         false)
     }
@@ -710,6 +846,7 @@ class Database {
     fun removeUnlinkedAttachments() {
         // No check in database KDB because unique attachment by entry
         mDatabaseKDBX?.removeUnlinkedAttachments(true)
+        dataModifiedSinceLastLoading = true
     }
 
     @Throws(DatabaseOutputException::class)
@@ -770,16 +907,25 @@ class Database {
             }
         }
         this.fileUri = uri
+        this.dataModifiedSinceLastLoading = false
     }
 
-    fun clear(filesDirectory: File? = null) {
-        binaryCache.clear()
-        iconsManager.clearCache()
+    fun clearIndexesAndBinaries(filesDirectory: File? = null) {
+        this.mDatabaseKDB?.clearIndexes()
+        this.mDatabaseKDBX?.clearIndexes()
+
+        this.mDatabaseKDB?.clearIconsCache()
+        this.mDatabaseKDBX?.clearIconsCache()
+
+        this.mDatabaseKDB?.clearAttachmentsCache()
+        this.mDatabaseKDBX?.clearAttachmentsCache()
+
+        this.mDatabaseKDB?.clearBinaries()
+        this.mDatabaseKDBX?.clearBinaries()
+
         iconDrawableFactory.clearCache()
-        // Delete the cache of the database if present
-        mDatabaseKDB?.clearCache()
-        mDatabaseKDBX?.clearCache()
-        // In all cases, delete all the files in the temp dir
+
+        // delete all the files in the temp dir if allowed
         try {
             filesDirectory?.let { directory ->
                 cleanDirectory(directory)
@@ -790,7 +936,7 @@ class Database {
     }
 
     fun clearAndClose(context: Context? = null) {
-        clear(context?.let { UriUtil.getBinaryDir(context) })
+        clearIndexesAndBinaries(context?.let { UriUtil.getBinaryDir(context) })
         this.mDatabaseKDB = null
         this.mDatabaseKDBX = null
         this.fileUri = null
@@ -817,9 +963,10 @@ class Database {
     }
 
     @Throws(IOException::class)
-    fun retrieveMasterKey(key: String?, keyInputStream: InputStream?) {
+    fun assignMasterKey(key: String?, keyInputStream: InputStream?) {
         mDatabaseKDB?.retrieveMasterKey(key, keyInputStream)
         mDatabaseKDBX?.retrieveMasterKey(key, keyInputStream)
+        mDatabaseKDBX?.keyLastChanged = DateInstant()
     }
 
     fun rootCanContainsEntry(): Boolean {
@@ -827,6 +974,7 @@ class Database {
     }
 
     fun createEntry(): Entry? {
+        dataModifiedSinceLastLoading = true
         mDatabaseKDB?.let { database ->
             return Entry(database.createEntry()).apply {
                 nodeId = database.newEntryId()
@@ -842,6 +990,7 @@ class Database {
     }
 
     fun createGroup(): Group? {
+        dataModifiedSinceLastLoading = true
         mDatabaseKDB?.let { database ->
             return Group(database.createGroup()).apply {
                 setNodeId(database.newGroupId())
@@ -879,6 +1028,7 @@ class Database {
     }
 
     fun addEntryTo(entry: Entry, parent: Group) {
+        dataModifiedSinceLastLoading = true
         entry.entryKDB?.let { entryKDB ->
             mDatabaseKDB?.addEntryTo(entryKDB, parent.groupKDB)
         }
@@ -889,6 +1039,7 @@ class Database {
     }
 
     fun updateEntry(entry: Entry) {
+        dataModifiedSinceLastLoading = true
         entry.entryKDB?.let { entryKDB ->
             mDatabaseKDB?.updateEntry(entryKDB)
         }
@@ -898,6 +1049,7 @@ class Database {
     }
 
     fun removeEntryFrom(entry: Entry, parent: Group) {
+        dataModifiedSinceLastLoading = true
         entry.entryKDB?.let { entryKDB ->
             mDatabaseKDB?.removeEntryFrom(entryKDB, parent.groupKDB)
         }
@@ -908,6 +1060,7 @@ class Database {
     }
 
     fun addGroupTo(group: Group, parent: Group) {
+        dataModifiedSinceLastLoading = true
         group.groupKDB?.let { groupKDB ->
             mDatabaseKDB?.addGroupTo(groupKDB, parent.groupKDB)
         }
@@ -918,6 +1071,7 @@ class Database {
     }
 
     fun updateGroup(group: Group) {
+        dataModifiedSinceLastLoading = true
         group.groupKDB?.let { entryKDB ->
             mDatabaseKDB?.updateGroup(entryKDB)
         }
@@ -927,6 +1081,7 @@ class Database {
     }
 
     fun removeGroupFrom(group: Group, parent: Group) {
+        dataModifiedSinceLastLoading = true
         group.groupKDB?.let { groupKDB ->
             mDatabaseKDB?.removeGroupFrom(groupKDB, parent.groupKDB)
         }
@@ -965,12 +1120,17 @@ class Database {
     }
 
     fun deleteEntry(entry: Entry) {
+        dataModifiedSinceLastLoading = true
+        entry.entryKDBX?.id?.let { entryId ->
+            mDatabaseKDBX?.addDeletedObject(entryId)
+        }
         entry.parent?.let {
             removeEntryFrom(entry, it)
         }
     }
 
     fun deleteGroup(group: Group) {
+        dataModifiedSinceLastLoading = true
         group.doForEachChildAndForIt(
                 object : NodeHandler<Entry>() {
                     override fun operate(node: Entry): Boolean {
@@ -980,6 +1140,9 @@ class Database {
                 },
                 object : NodeHandler<Group>() {
                     override fun operate(node: Group): Boolean {
+                        node.groupKDBX?.id?.let { groupId ->
+                            mDatabaseKDBX?.addDeletedObject(groupId)
+                        }
                         node.parent?.let {
                             removeGroupFrom(node, it)
                         }
@@ -988,24 +1151,6 @@ class Database {
                 })
     }
 
-    fun undoDeleteEntry(entry: Entry, parent: Group) {
-        entry.entryKDB?.let {
-            mDatabaseKDB?.undoDeleteEntryFrom(it, parent.groupKDB)
-        }
-        entry.entryKDBX?.let {
-            mDatabaseKDBX?.undoDeleteEntryFrom(it, parent.groupKDBX)
-        }
-    }
-
-    fun undoDeleteGroup(group: Group, parent: Group) {
-        group.groupKDB?.let {
-            mDatabaseKDB?.undoDeleteGroupFrom(it, parent.groupKDB)
-        }
-        group.groupKDBX?.let {
-            mDatabaseKDBX?.undoDeleteGroupFrom(it, parent.groupKDBX)
-        }
-    }
-
     fun ensureRecycleBinExists(resources: Resources) {
         mDatabaseKDB?.ensureBackupExists()
         mDatabaseKDBX?.ensureRecycleBinExists(resources)
@@ -1034,47 +1179,41 @@ class Database {
     }
 
     fun recycle(entry: Entry, resources: Resources) {
-        entry.entryKDB?.let {
-            mDatabaseKDB?.recycle(it)
+        ensureRecycleBinExists(resources)
+        entry.parent?.let { parent ->
+            removeEntryFrom(entry, parent)
         }
-        entry.entryKDBX?.let {
-            mDatabaseKDBX?.recycle(it, resources)
+        recycleBin?.let {
+            addEntryTo(entry, it)
         }
+        entry.afterAssignNewParent()
     }
 
     fun recycle(group: Group, resources: Resources) {
-        group.groupKDB?.let {
-            mDatabaseKDB?.recycle(it)
+        ensureRecycleBinExists(resources)
+        group.parent?.let { parent ->
+            removeGroupFrom(group, parent)
         }
-        group.groupKDBX?.let {
-            mDatabaseKDBX?.recycle(it, resources)
+        recycleBin?.let {
+            addGroupTo(group, it)
         }
+        group.afterAssignNewParent()
     }
 
     fun undoRecycle(entry: Entry, parent: Group) {
-        entry.entryKDB?.let { entryKDB ->
-            parent.groupKDB?.let { parentKDB ->
-                mDatabaseKDB?.undoRecycle(entryKDB, parentKDB)
-            }
-        }
-        entry.entryKDBX?.let { entryKDBX ->
-            parent.groupKDBX?.let { parentKDBX ->
-                mDatabaseKDBX?.undoRecycle(entryKDBX, parentKDBX)
-            }
+        recycleBin?.let { it ->
+            removeEntryFrom(entry, it)
         }
+        addEntryTo(entry, parent)
+        entry.afterAssignNewParent()
     }
 
     fun undoRecycle(group: Group, parent: Group) {
-        group.groupKDB?.let { groupKDB ->
-            parent.groupKDB?.let { parentKDB ->
-                mDatabaseKDB?.undoRecycle(groupKDB, parentKDB)
-            }
-        }
-        group.groupKDBX?.let { entryKDBX ->
-            parent.groupKDBX?.let { parentKDBX ->
-                mDatabaseKDBX?.undoRecycle(entryKDBX, parentKDBX)
-            }
+        recycleBin?.let {
+            removeGroupFrom(group, it)
         }
+        addGroupTo(group, parent)
+        group.afterAssignNewParent()
     }
 
     fun startManageEntry(entry: Entry?) {

app/src/main/java/com/kunzisoft/keepass/database/element/DeletedObject.kt

@@ -28,29 +28,18 @@ import java.util.*
 class DeletedObject : Parcelable {
 
     var uuid: UUID = DatabaseVersioned.UUID_ZERO
-    private var mDeletionTime: DateInstant? = null
+    var deletionTime: DateInstant = DateInstant()
 
     constructor()
 
     constructor(uuid: UUID, deletionTime: DateInstant = DateInstant()) {
         this.uuid = uuid
-        this.mDeletionTime = deletionTime
+        this.deletionTime = deletionTime
     }
 
     constructor(parcel: Parcel) {
         uuid = parcel.readParcelable<ParcelUuid>(ParcelUuid::class.java.classLoader)?.uuid ?: DatabaseVersioned.UUID_ZERO
-        mDeletionTime = parcel.readParcelable(DateInstant::class.java.classLoader)
-    }
-
-    fun getDeletionTime(): DateInstant {
-        if (mDeletionTime == null) {
-            mDeletionTime = DateInstant(System.currentTimeMillis())
-        }
-        return mDeletionTime!!
-    }
-
-    fun setDeletionTime(deletionTime: DateInstant) {
-        this.mDeletionTime = deletionTime
+        deletionTime = parcel.readParcelable(DateInstant::class.java.classLoader) ?: deletionTime
     }
 
     override fun equals(other: Any?): Boolean {
@@ -69,7 +58,7 @@ class DeletedObject : Parcelable {
 
     override fun writeToParcel(parcel: Parcel, flags: Int) {
         parcel.writeParcelable(ParcelUuid(uuid), flags)
-        parcel.writeParcelable(mDeletionTime, flags)
+        parcel.writeParcelable(deletionTime, flags)
     }
 
     override fun describeContents(): Int {

app/src/main/java/com/kunzisoft/keepass/database/element/Entry.kt

@@ -19,8 +19,10 @@
  */
 package com.kunzisoft.keepass.database.element
 
+import android.graphics.Color
 import android.os.Parcel
 import android.os.Parcelable
+import com.kunzisoft.androidclearchroma.ChromaUtil
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
@@ -238,6 +240,42 @@ class Entry : Node, EntryVersionedInterface<Group> {
             entryKDBX?.notes = value
         }
 
+    var backgroundColor: Int?
+        get() {
+            var colorInt: Int? = null
+            entryKDBX?.backgroundColor?.let {
+                try {
+                    colorInt = Color.parseColor(it)
+                } catch (e: Exception) {}
+            }
+            return colorInt
+        }
+        set(value) {
+            entryKDBX?.backgroundColor = if (value == null) {
+                ""
+            } else {
+                ChromaUtil.getFormattedColorString(value, false)
+            }
+        }
+
+    var foregroundColor: Int?
+        get() {
+            var colorInt: Int? = null
+            entryKDBX?.foregroundColor?.let {
+                try {
+                    colorInt = Color.parseColor(it)
+                } catch (e: Exception) {}
+            }
+            return colorInt
+        }
+        set(value) {
+            entryKDBX?.foregroundColor = if (value == null) {
+                ""
+            } else {
+                ChromaUtil.getFormattedColorString(value, false)
+            }
+        }
+
     private fun isTan(): Boolean {
         return title == PMS_TAN_ENTRY && username.isNotEmpty()
     }
@@ -420,6 +458,8 @@ class Entry : Node, EntryVersionedInterface<Group> {
             entryInfo.url = url
             entryInfo.notes = notes
             entryInfo.tags = tags
+            entryInfo.backgroundColor = backgroundColor
+            entryInfo.foregroundColor = foregroundColor
             entryInfo.customFields = getExtraFields().toMutableList()
             // Add otpElement to generate token
             entryInfo.otpModel = getOtpElement()?.otpModel
@@ -455,6 +495,8 @@ class Entry : Node, EntryVersionedInterface<Group> {
         url = newEntryInfo.url
         notes = newEntryInfo.notes
         tags = newEntryInfo.tags
+        backgroundColor = newEntryInfo.backgroundColor
+        foregroundColor = newEntryInfo.foregroundColor
         addExtraFields(newEntryInfo.customFields)
         database?.attachmentPool?.let { binaryPool ->
             newEntryInfo.attachments.forEach { attachment ->

app/src/main/java/com/kunzisoft/keepass/database/element/Group.kt

@@ -31,6 +31,7 @@ import com.kunzisoft.keepass.database.element.node.*
 import com.kunzisoft.keepass.model.EntryInfo
 import com.kunzisoft.keepass.model.GroupInfo
 import com.kunzisoft.keepass.settings.PreferencesUtil
+import com.kunzisoft.keepass.utils.UuidUtil
 import java.util.*
 import kotlin.collections.ArrayList
 
@@ -308,8 +309,9 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
         val withoutMetaStream = filters.contains(ChildFilter.META_STREAM)
         val showExpiredEntries = !filters.contains(ChildFilter.EXPIRED)
 
+        // TODO Change KDB parser to remove meta entries
         return groupKDB?.getChildEntries()?.filter {
-            (!withoutMetaStream || (withoutMetaStream && !it.isMetaStream))
+            (!withoutMetaStream || (withoutMetaStream && !it.isMetaStream()))
                     && (!it.isCurrentlyExpires or showExpiredEntries)
         }?.map {
             Entry(it)
@@ -453,6 +455,7 @@ class Group : Node, GroupVersionedInterface<Group, Entry> {
 
     fun getGroupInfo(): GroupInfo {
         val groupInfo = GroupInfo()
+        groupInfo.id = groupKDBX?.nodeId?.id
         groupInfo.title = title
         groupInfo.icon = icon
         groupInfo.creationTime = creationTime

app/src/main/java/com/kunzisoft/keepass/database/element/binary/AttachmentPool.kt

@@ -19,7 +19,7 @@
  */
 package com.kunzisoft.keepass.database.element.binary
 
-class AttachmentPool(binaryCache: BinaryCache) : BinaryPool<Int>(binaryCache) {
+class AttachmentPool : BinaryPool<Int>() {
 
     /**
      * Utility method to find an unused key in the pool

app/src/main/java/com/kunzisoft/keepass/database/element/binary/BinaryPool.kt

@@ -23,7 +23,7 @@ import android.util.Log
 import java.io.IOException
 import kotlin.math.abs
 
-abstract class BinaryPool<T>(private val mBinaryCache: BinaryCache) {
+abstract class BinaryPool<T> {
 
     protected val pool = LinkedHashMap<T, BinaryData>()
 
@@ -225,9 +225,6 @@ abstract class BinaryPool<T>(private val mBinaryCache: BinaryCache) {
 
     @Throws(IOException::class)
     fun clear() {
-        doForEachBinary { _, binary ->
-            binary.clear(mBinaryCache)
-        }
         pool.clear()
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/binary/CustomIconPool.kt

@@ -4,19 +4,16 @@ import com.kunzisoft.keepass.database.element.DateInstant
 import com.kunzisoft.keepass.database.element.icon.IconImageCustom
 import java.util.*
 
-class CustomIconPool(private val binaryCache: BinaryCache) : BinaryPool<UUID>(binaryCache) {
+class CustomIconPool : BinaryPool<UUID>() {
 
     private val customIcons = HashMap<UUID, IconImageCustom>()
 
     fun put(key: UUID? = null,
             name: String,
             lastModificationTime: DateInstant?,
-            smallSize: Boolean,
+            builder: (uniqueBinaryId: String) -> BinaryData,
             result: (IconImageCustom, BinaryData?) -> Unit) {
-        val keyBinary = super.put(key) { uniqueBinaryId ->
-            // Create a byte array for better performance with small data
-            binaryCache.getBinaryData(uniqueBinaryId, smallSize)
-        }
+        val keyBinary = super.put(key, builder)
         val uuid = keyBinary.keys.first()
         val customIcon = IconImageCustom(uuid, name, lastModificationTime)
         customIcons[uuid] = customIcon

app/src/main/java/com/kunzisoft/keepass/database/element/database/DatabaseKDB.kt

@@ -34,23 +34,41 @@ import com.kunzisoft.keepass.database.element.node.NodeVersioned
 import java.io.IOException
 import java.io.InputStream
 import java.util.*
-import kotlin.collections.ArrayList
 
 class DatabaseKDB : DatabaseVersioned<Int, UUID, GroupKDB, EntryKDB>() {
 
-    private var kdfListV3: MutableList<KdfEngine> = ArrayList()
+    override var encryptionAlgorithm: EncryptionAlgorithm = EncryptionAlgorithm.AESRijndael
+
+    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm> = listOf(
+        EncryptionAlgorithm.AESRijndael,
+        EncryptionAlgorithm.Twofish
+    )
+
+    override var kdfEngine: KdfEngine?
+        get() = kdfAvailableList[0]
+        set(value) {
+            value?.let {
+                numberKeyEncryptionRounds = value.defaultKeyRounds
+            }
+        }
+
+    override val kdfAvailableList: List<KdfEngine> = listOf(
+        KdfFactory.aesKdf
+    )
+
+    override val passwordEncoding: String
+        get() = "ISO-8859-1"
+
+    override var numberKeyEncryptionRounds = 300L
 
     override val version: String
-        get() = "KeePass 1"
+        get() = "V1"
 
     init {
-        kdfListV3.add(KdfFactory.aesKdf)
-    }
-
-    private fun getGroupById(groupId: Int): GroupKDB? {
-        if (groupId == -1)
-            return null
-        return getGroupById(NodeIdInt(groupId))
+        // New manual root because KDB contains multiple root groups (here available with getRootGroups())
+        rootGroup = createGroup().apply {
+            icon.standard = getStandardIcon(IconImageStandard.DATABASE_ID)
+        }
     }
 
     val backupGroup: GroupKDB?
@@ -63,33 +81,9 @@ class DatabaseKDB : DatabaseVersioned<Int, UUID, GroupKDB, EntryKDB>() {
             return listOf(BACKUP_FOLDER_TITLE)
         }
 
-    override val kdfEngine: KdfEngine
-        get() = kdfListV3[0]
+    var defaultUserName: String = ""
 
-    override val kdfAvailableList: List<KdfEngine>
-        get() = kdfListV3
-
-    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
-        get() {
-            val list = ArrayList<EncryptionAlgorithm>()
-            list.add(EncryptionAlgorithm.AESRijndael)
-            list.add(EncryptionAlgorithm.Twofish)
-            return list
-        }
-
-    val rootGroups: List<GroupKDB>
-        get() {
-            return rootGroup?.getChildGroups() ?: ArrayList()
-        }
-
-    override val passwordEncoding: String
-        get() = "ISO-8859-1"
-
-    override var numberKeyEncryptionRounds = 300L
-
-    init {
-        algorithm = EncryptionAlgorithm.AESRijndael
-    }
+    var color: Int? = null
 
     /**
      * Generates an unused random tree id
@@ -215,29 +209,7 @@ class DatabaseKDB : DatabaseVersioned<Int, UUID, GroupKDB, EntryKDB>() {
         return true
     }
 
-    fun recycle(group: GroupKDB) {
-        removeGroupFrom(group, group.parent)
-        addGroupTo(group, backupGroup)
-        group.afterAssignNewParent()
-    }
-
-    fun recycle(entry: EntryKDB) {
-        removeEntryFrom(entry, entry.parent)
-        addEntryTo(entry, backupGroup)
-        entry.afterAssignNewParent()
-    }
-
-    fun undoRecycle(group: GroupKDB, origParent: GroupKDB) {
-        removeGroupFrom(group, backupGroup)
-        addGroupTo(group, origParent)
-    }
-
-    fun undoRecycle(entry: EntryKDB, origParent: GroupKDB) {
-        removeEntryFrom(entry, backupGroup)
-        addEntryTo(entry, origParent)
-    }
-
-    fun buildNewAttachment(): BinaryData {
+    fun buildNewBinaryAttachment(): BinaryData {
         // Generate an unique new file
         return attachmentPool.put { uniqueBinaryId ->
             binaryCache.getBinaryData(uniqueBinaryId, false)

app/src/main/java/com/kunzisoft/keepass/database/element/database/DatabaseKDBX.kt

@@ -25,10 +25,9 @@ import android.util.Log
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.database.action.node.NodeHandler
-import com.kunzisoft.keepass.database.crypto.AesEngine
-import com.kunzisoft.keepass.database.crypto.CipherEngine
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.VariantDictionary
+import com.kunzisoft.keepass.database.crypto.kdf.AesKdf
 import com.kunzisoft.keepass.database.crypto.kdf.KdfEngine
 import com.kunzisoft.keepass.database.crypto.kdf.KdfFactory
 import com.kunzisoft.keepass.database.crypto.kdf.KdfParameters
@@ -42,7 +41,9 @@ import com.kunzisoft.keepass.database.element.entry.FieldReferencesEngine
 import com.kunzisoft.keepass.database.element.group.GroupKDBX
 import com.kunzisoft.keepass.database.element.icon.IconImageCustom
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard
+import com.kunzisoft.keepass.database.element.node.NodeId
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
+import com.kunzisoft.keepass.database.element.node.NodeKDBXInterface
 import com.kunzisoft.keepass.database.element.node.NodeVersioned
 import com.kunzisoft.keepass.database.element.security.MemoryProtectionConfig
 import com.kunzisoft.keepass.database.element.template.Template
@@ -66,6 +67,7 @@ import javax.crypto.Mac
 import javax.xml.XMLConstants
 import javax.xml.parsers.DocumentBuilderFactory
 import javax.xml.parsers.ParserConfigurationException
+import kotlin.collections.HashSet
 import kotlin.math.min
 
 
@@ -73,27 +75,71 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
 
     var hmacKey: ByteArray? = null
         private set
-    var cipherUuid = EncryptionAlgorithm.AESRijndael.uuid
-    private var dataEngine: CipherEngine = AesEngine()
-    var compressionAlgorithm = CompressionAlgorithm.GZip
+
+    override var encryptionAlgorithm: EncryptionAlgorithm = EncryptionAlgorithm.AESRijndael
+
+    fun setEncryptionAlgorithmFromUUID(uuid: UUID) {
+        encryptionAlgorithm = EncryptionAlgorithm.getFrom(uuid)
+    }
+
+    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm> = listOf(
+        EncryptionAlgorithm.AESRijndael,
+        EncryptionAlgorithm.Twofish,
+        EncryptionAlgorithm.ChaCha20
+    )
+
     var kdfParameters: KdfParameters? = null
-    private var kdfList: MutableList<KdfEngine> = ArrayList()
-    private var numKeyEncRounds: Long = 0
-    var publicCustomData = VariantDictionary()
+
+    override var kdfEngine: KdfEngine?
+        get() = try {
+            getEngineKDBX4(kdfParameters)
+        } catch (unknownKDF: UnknownKDF) {
+            Log.i(TAG, "Unable to retrieve KDF engine", unknownKDF)
+            null
+        }
+        set(value) {
+            value?.let {
+                if (kdfParameters?.uuid != value.defaultParameters.uuid)
+                    kdfParameters = value.defaultParameters
+                numberKeyEncryptionRounds = value.defaultKeyRounds
+                memoryUsage = value.defaultMemoryUsage
+                parallelism = value.defaultParallelism
+            }
+        }
+
+    @Throws(UnknownKDF::class)
+    fun getEngineKDBX4(kdfParameters: KdfParameters?): KdfEngine {
+        val unknownKDFException = UnknownKDF()
+        if (kdfParameters == null) {
+            throw unknownKDFException
+        }
+        for (engine in kdfAvailableList) {
+            if (engine.uuid == kdfParameters.uuid) {
+                return engine
+            }
+        }
+        throw unknownKDFException
+    }
+
+    override val kdfAvailableList: List<KdfEngine> = listOf(
+        KdfFactory.aesKdf,
+        KdfFactory.argon2dKdf,
+        KdfFactory.argon2idKdf
+    )
+
+    var compressionAlgorithm = CompressionAlgorithm.GZip
+
     private val mFieldReferenceEngine = FieldReferencesEngine(this)
     private val mTemplateEngine = TemplateEngineCompatible(this)
 
     var kdbxVersion = UnsignedInt(0)
     var name = ""
     var nameChanged = DateInstant()
-    // TODO change setting date
-    var settingsChanged = DateInstant()
     var description = ""
     var descriptionChanged = DateInstant()
     var defaultUserName = ""
     var defaultUserNameChanged = DateInstant()
-
-    // TODO last change date
+    var settingsChanged = DateInstant()
     var keyLastChanged = DateInstant()
     var keyChangeRecDays: Long = -1
     var keyChangeForceDays: Long = 1
@@ -115,17 +161,12 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     var lastSelectedGroupUUID = UUID_ZERO
     var lastTopVisibleGroupUUID = UUID_ZERO
     var memoryProtection = MemoryProtectionConfig()
-    val deletedObjects = ArrayList<DeletedObject>()
+    val deletedObjects = HashSet<DeletedObject>()
+    var publicCustomData = VariantDictionary()
     val customData = CustomData()
 
     var localizedAppName = "KeePassDX"
 
-    init {
-        kdfList.add(KdfFactory.aesKdf)
-        kdfList.add(KdfFactory.argon2dKdf)
-        kdfList.add(KdfFactory.argon2idKdf)
-    }
-
     constructor()
 
     /**
@@ -156,41 +197,74 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
                 FILE_VERSION_41 -> "4.1"
                 else -> "UNKNOWN"
             }
-            return "KeePass 2 - KDBX$kdbxStringVersion"
+            return "V2 - KDBX$kdbxStringVersion"
         }
 
-    override val kdfEngine: KdfEngine?
-        get() = try {
-            getEngineKDBX4(kdfParameters)
-        } catch (unknownKDF: UnknownKDF) {
-            Log.i(TAG, "Unable to retrieve KDF engine", unknownKDF)
-            null
-        }
-
-    override val kdfAvailableList: List<KdfEngine>
-        get() = kdfList
-
-    @Throws(UnknownKDF::class)
-    fun getEngineKDBX4(kdfParameters: KdfParameters?): KdfEngine {
-        val unknownKDFException = UnknownKDF()
-        if (kdfParameters == null) {
-            throw unknownKDFException
-        }
-        for (engine in kdfList) {
-            if (engine.uuid == kdfParameters.uuid) {
-                return engine
+    private open class NodeOperationHandler<T: NodeKDBXInterface> : NodeHandler<T>() {
+        var containsCustomData = false
+        override fun operate(node: T): Boolean {
+            if (node.customData.isNotEmpty()) {
+                containsCustomData = true
             }
+            return true
         }
-        throw unknownKDFException
     }
 
-    val availableCompressionAlgorithms: List<CompressionAlgorithm>
-        get() {
-            val list = ArrayList<CompressionAlgorithm>()
-            list.add(CompressionAlgorithm.None)
-            list.add(CompressionAlgorithm.GZip)
-            return list
+    private inner class EntryOperationHandler: NodeOperationHandler<EntryKDBX>() {
+        var passwordQualityEstimationDisabled = false
+        override fun operate(node: EntryKDBX): Boolean {
+            if (!node.qualityCheck) {
+                passwordQualityEstimationDisabled = true
+            }
+            return super.operate(node)
         }
+    }
+
+    private inner class GroupOperationHandler: NodeOperationHandler<GroupKDBX>() {
+        var containsTags = false
+        override fun operate(node: GroupKDBX): Boolean {
+            if (!node.tags.isEmpty())
+                containsTags = true
+            return super.operate(node)
+        }
+    }
+
+    fun getMinKdbxVersion(): UnsignedInt {
+        val entryHandler = EntryOperationHandler()
+        val groupHandler = GroupOperationHandler()
+        rootGroup?.doForEachChildAndForIt(entryHandler, groupHandler)
+
+        // https://keepass.info/help/kb/kdbx_4.1.html
+        val containsGroupWithTag = groupHandler.containsTags
+        val containsEntryWithPasswordQualityEstimationDisabled = entryHandler.passwordQualityEstimationDisabled
+        val containsCustomIconWithNameOrLastModificationTime = iconsManager.containsCustomIconWithNameOrLastModificationTime()
+        val containsHeaderCustomDataWithLastModificationTime = customData.containsItemWithLastModificationTime()
+
+        // https://keepass.info/help/kb/kdbx_4.html
+        // If AES is not use, it's at least 4.0
+        val kdfIsNotAes = kdfParameters?.uuid != AesKdf.CIPHER_UUID
+        val containsHeaderCustomData = customData.isNotEmpty()
+        val containsNodeCustomData = entryHandler.containsCustomData || groupHandler.containsCustomData
+
+        // Check each condition to determine version
+        return if (containsGroupWithTag
+            || containsEntryWithPasswordQualityEstimationDisabled
+            || containsCustomIconWithNameOrLastModificationTime
+            || containsHeaderCustomDataWithLastModificationTime) {
+            FILE_VERSION_41
+        } else if (kdfIsNotAes
+            || containsHeaderCustomData
+            || containsNodeCustomData) {
+            FILE_VERSION_40
+        } else {
+            FILE_VERSION_31
+        }
+    }
+
+    val availableCompressionAlgorithms: List<CompressionAlgorithm> = listOf(
+        CompressionAlgorithm.None,
+        CompressionAlgorithm.GZip
+    )
 
     fun changeBinaryCompression(oldCompression: CompressionAlgorithm,
                                 newCompression: CompressionAlgorithm) {
@@ -245,18 +319,10 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
         }
     }
 
-    override val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
-        get() {
-            val list = ArrayList<EncryptionAlgorithm>()
-            list.add(EncryptionAlgorithm.AESRijndael)
-            list.add(EncryptionAlgorithm.Twofish)
-            list.add(EncryptionAlgorithm.ChaCha20)
-            return list
-        }
-
     override var numberKeyEncryptionRounds: Long
         get() {
             val kdfEngine = kdfEngine
+            var numKeyEncRounds: Long = 0
             if (kdfEngine != null && kdfParameters != null)
                 numKeyEncRounds = kdfEngine.getKeyRounds(kdfParameters!!)
             return numKeyEncRounds
@@ -265,7 +331,6 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
             val kdfEngine = kdfEngine
             if (kdfEngine != null && kdfParameters != null)
                 kdfEngine.setKeyRounds(kdfParameters!!, rounds)
-            numKeyEncRounds = rounds
         }
 
     var memoryUsage: Long
@@ -305,7 +370,7 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
 
     // Retrieve recycle bin in index
     val recycleBin: GroupKDBX?
-        get() = if (recycleBinUUID == UUID_ZERO) null else getGroupByUUID(recycleBinUUID)
+        get() = getGroupByUUID(recycleBinUUID)
 
     val lastSelectedGroup: GroupKDBX?
         get() = getGroupByUUID(lastSelectedGroupUUID)
@@ -313,17 +378,14 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     val lastTopVisibleGroup: GroupKDBX?
         get() = getGroupByUUID(lastTopVisibleGroupUUID)
 
-    fun setDataEngine(dataEngine: CipherEngine) {
-        this.dataEngine = dataEngine
-    }
-
     override fun getStandardIcon(iconId: Int): IconImageStandard {
         return this.iconsManager.getIcon(iconId)
     }
 
     fun buildNewCustomIcon(customIconId: UUID? = null,
                            result: (IconImageCustom, BinaryData?) -> Unit) {
-        iconsManager.buildNewCustomIcon(customIconId, result)
+        // Create a binary file for a brand new custom icon
+        addCustomIcon(customIconId, "", null, false, result)
     }
 
     fun addCustomIcon(customIconId: UUID? = null,
@@ -331,14 +393,21 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
                       lastModificationTime: DateInstant?,
                       smallSize: Boolean,
                       result: (IconImageCustom, BinaryData?) -> Unit) {
-        iconsManager.addCustomIcon(customIconId, name, lastModificationTime, smallSize, result)
+        iconsManager.addCustomIcon(customIconId, name, lastModificationTime, { uniqueBinaryId ->
+            // Create a byte array for better performance with small data
+            binaryCache.getBinaryData(uniqueBinaryId, smallSize)
+        }, result)
+    }
+
+    fun removeCustomIcon(iconUuid: UUID) {
+        iconsManager.removeCustomIcon(iconUuid, binaryCache)
     }
 
     fun isCustomIconBinaryDuplicate(binary: BinaryData): Boolean {
         return iconsManager.isCustomIconBinaryDuplicate(binary)
     }
 
-    fun getCustomIcon(iconUuid: UUID): IconImageCustom {
+    fun getCustomIcon(iconUuid: UUID): IconImageCustom? {
         return this.iconsManager.getIcon(iconUuid)
     }
 
@@ -355,7 +424,6 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
             val templatesGroup = firstGroupWithValidName
                 ?: mTemplateEngine.createNewTemplatesGroup(templatesGroupName)
             entryTemplatesGroup = templatesGroup.id
-            entryTemplatesGroupChanged = templatesGroup.lastModificationTime
         } else {
             removeTemplatesGroup()
         }
@@ -363,7 +431,6 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
 
     fun removeTemplatesGroup() {
         entryTemplatesGroup = UUID_ZERO
-        entryTemplatesGroupChanged = DateInstant()
         mTemplateEngine.clearCache()
     }
 
@@ -414,37 +481,37 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     }
 
     fun getEntryByTitle(title: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeTitleKey(recursionLevel).equals(title, true)
         }
     }
 
     fun getEntryByUsername(username: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeUsernameKey(recursionLevel).equals(username, true)
         }
     }
 
     fun getEntryByURL(url: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeUrlKey(recursionLevel).equals(url, true)
         }
     }
 
     fun getEntryByPassword(password: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodePasswordKey(recursionLevel).equals(password, true)
         }
     }
 
     fun getEntryByNotes(notes: String, recursionLevel: Int): EntryKDBX? {
-        return this.entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.decodeNotesKey(recursionLevel).equals(notes, true)
         }
     }
 
     fun getEntryByCustomData(customDataValue: String): EntryKDBX? {
-        return entryIndexes.values.find { entry ->
+        return findEntry { entry ->
             entry.customData.containsItemWithValue(customDataValue)
         }
     }
@@ -486,7 +553,7 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
             val cmpKey = ByteArray(65)
             System.arraycopy(masterSeed, 0, cmpKey, 0, 32)
             System.arraycopy(transformedMasterKey, 0, cmpKey, 32, 32)
-            finalKey = resizeKey(cmpKey, dataEngine.keyLength())
+            finalKey = resizeKey(cmpKey, encryptionAlgorithm.cipherEngine.keyLength())
 
             val messageDigest: MessageDigest
             try {
@@ -724,14 +791,13 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
                 firstGroupWithValidName
             }
             recycleBinUUID = recycleBinGroup.id
-            recycleBinChanged = recycleBinGroup.lastModificationTime
+            recycleBinChanged = DateInstant()
         }
     }
 
     fun removeRecycleBin() {
         if (recycleBin != null) {
             recycleBinUUID = UUID_ZERO
-            recycleBinChanged = DateInstant()
         }
     }
 
@@ -753,38 +819,18 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
         return false
     }
 
-    fun recycle(group: GroupKDBX, resources: Resources) {
-        ensureRecycleBinExists(resources)
-        removeGroupFrom(group, group.parent)
-        addGroupTo(group, recycleBin)
-        group.afterAssignNewParent()
-    }
-
-    fun recycle(entry: EntryKDBX, resources: Resources) {
-        ensureRecycleBinExists(resources)
-        removeEntryFrom(entry, entry.parent)
-        addEntryTo(entry, recycleBin)
-        entry.afterAssignNewParent()
-    }
-
-    fun undoRecycle(group: GroupKDBX, origParent: GroupKDBX) {
-        removeGroupFrom(group, recycleBin)
-        addGroupTo(group, origParent)
-    }
-
-    fun undoRecycle(entry: EntryKDBX, origParent: GroupKDBX) {
-        removeEntryFrom(entry, recycleBin)
-        addEntryTo(entry, origParent)
-    }
-
-    fun getDeletedObjects(): List<DeletedObject> {
-        return deletedObjects
+    fun getDeletedObject(nodeId: NodeId<UUID>): DeletedObject? {
+        return deletedObjects.find { it.uuid == nodeId.id }
     }
 
     fun addDeletedObject(deletedObject: DeletedObject) {
         this.deletedObjects.add(deletedObject)
     }
 
+    fun addDeletedObject(objectId: UUID) {
+        addDeletedObject(DeletedObject(objectId))
+    }
+
     override fun addEntryTo(newEntry: EntryKDBX, parent: GroupKDBX?) {
         super.addEntryTo(newEntry, parent)
         mFieldReferenceEngine.clear()
@@ -797,23 +843,17 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
 
     override fun removeEntryFrom(entryToRemove: EntryKDBX, parent: GroupKDBX?) {
         super.removeEntryFrom(entryToRemove, parent)
-        deletedObjects.add(DeletedObject(entryToRemove.id))
         mFieldReferenceEngine.clear()
     }
 
-    override fun undoDeleteEntryFrom(entry: EntryKDBX, origParent: GroupKDBX?) {
-        super.undoDeleteEntryFrom(entry, origParent)
-        deletedObjects.remove(DeletedObject(entry.id))
-    }
-
     fun containsPublicCustomData(): Boolean {
         return publicCustomData.size() > 0
     }
 
-    fun buildNewAttachment(smallSize: Boolean,
-                           compression: Boolean,
-                           protection: Boolean,
-                           binaryPoolId: Int? = null): BinaryData {
+    fun buildNewBinaryAttachment(smallSize: Boolean,
+                                 compression: Boolean,
+                                 protection: Boolean,
+                                 binaryPoolId: Int? = null): BinaryData {
         return attachmentPool.put(binaryPoolId) { uniqueBinaryId ->
             binaryCache.getBinaryData(uniqueBinaryId, smallSize, compression, protection)
         }.binary
@@ -830,6 +870,7 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
     }
 
     private fun removeUnlinkedAttachments(binaries: List<BinaryData>, clear: Boolean) {
+        // TODO check in icon pool
         // Build binaries to remove with all binaries known
         val binariesToRemove = ArrayList<BinaryData>()
         if (binaries.isEmpty()) {
@@ -866,11 +907,10 @@ class DatabaseKDBX : DatabaseVersioned<UUID, UUID, GroupKDBX, EntryKDBX> {
         return super.validatePasswordEncoding(password, containsKeyFile)
     }
 
-    override fun clearCache() {
+    override fun clearIndexes() {
         try {
-            super.clearCache()
+            super.clearIndexes()
             mFieldReferenceEngine.clear()
-            attachmentPool.clear()
         } catch (e: Exception) {
             Log.e(TAG, "Unable to clear cache", e)
         }

app/src/main/java/com/kunzisoft/keepass/database/element/database/DatabaseVersioned.kt

@@ -19,8 +19,10 @@
  */
 package com.kunzisoft.keepass.database.element.database
 
+import android.util.Log
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
+import com.kunzisoft.keepass.database.crypto.kdf.KdfEngine
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.binary.BinaryCache
 import com.kunzisoft.keepass.database.element.entry.EntryVersioned
@@ -44,51 +46,42 @@ abstract class DatabaseVersioned<
         Entry : EntryVersioned<GroupId, EntryId, Group, Entry>
         > {
 
+
     // Algorithm used to encrypt the database
-    protected var algorithm: EncryptionAlgorithm? = null
+    abstract var encryptionAlgorithm: EncryptionAlgorithm
+    abstract val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
 
-    abstract val kdfEngine: com.kunzisoft.keepass.database.crypto.kdf.KdfEngine?
+    abstract var kdfEngine: KdfEngine?
+    abstract val kdfAvailableList: List<KdfEngine>
+    abstract var numberKeyEncryptionRounds: Long
 
-    abstract val kdfAvailableList: List<com.kunzisoft.keepass.database.crypto.kdf.KdfEngine>
+    protected abstract val passwordEncoding: String
 
     var masterKey = ByteArray(32)
     var finalKey: ByteArray? = null
         protected set
 
+    abstract val version: String
+
     /**
      * To manage binaries in faster way
      * Cipher key generated when the database is loaded, and destroyed when the database is closed
      * Can be used to temporarily store database elements
      */
     var binaryCache = BinaryCache()
-    val iconsManager = IconsManager(binaryCache)
-    var attachmentPool = AttachmentPool(binaryCache)
+    var iconsManager = IconsManager()
+    var attachmentPool = AttachmentPool()
 
     var changeDuplicateId = false
 
     private var groupIndexes = LinkedHashMap<NodeId<GroupId>, Group>()
-    protected var entryIndexes = LinkedHashMap<NodeId<EntryId>, Entry>()
-
-    abstract val version: String
-
-    protected abstract val passwordEncoding: String
-
-    abstract var numberKeyEncryptionRounds: Long
-
-    var encryptionAlgorithm: EncryptionAlgorithm
-        get() {
-            return algorithm ?: EncryptionAlgorithm.AESRijndael
-        }
-        set(algorithm) {
-            this.algorithm = algorithm
-        }
-
-    abstract val availableEncryptionAlgorithms: List<EncryptionAlgorithm>
+    private var entryIndexes = LinkedHashMap<NodeId<EntryId>, Entry>()
 
     var rootGroup: Group? = null
         set(value) {
             field = value
             value?.let {
+                removeGroupIndex(it)
                 addGroupIndex(it)
             }
         }
@@ -124,25 +117,29 @@ abstract class DatabaseVersioned<
 
     @Throws(IOException::class)
     protected fun getFileKey(keyInputStream: InputStream): ByteArray {
-        val keyData = keyInputStream.readBytes()
+        try {
+            val keyData = keyInputStream.readBytes()
 
-        // Check XML key file
-        val xmlKeyByteArray = loadXmlKeyFile(ByteArrayInputStream(keyData))
-        if (xmlKeyByteArray != null) {
-            return xmlKeyByteArray
-        }
-
-        // Check 32 bytes key file
-        when (keyData.size) {
-            32 -> return keyData
-            64 -> try {
-                return Hex.decodeHex(String(keyData).toCharArray())
-            } catch (ignoredException: Exception) {
-                // Key is not base 64, treat it as binary data
+            // Check XML key file
+            val xmlKeyByteArray = loadXmlKeyFile(ByteArrayInputStream(keyData))
+            if (xmlKeyByteArray != null) {
+                return xmlKeyByteArray
             }
+
+            // Check 32 bytes key file
+            when (keyData.size) {
+                32 -> return keyData
+                64 -> try {
+                    return Hex.decodeHex(String(keyData).toCharArray())
+                } catch (ignoredException: Exception) {
+                    // Key is not base 64, treat it as binary data
+                }
+            }
+            // Hash file as binary data
+            return HashManager.hashSha256(keyData)
+        } catch (outOfMemoryError: OutOfMemoryError) {
+            throw IOException("Keyfile data is too large", outOfMemoryError)
         }
-        // Hash file as binary data
-        return HashManager.hashSha256(keyData)
     }
 
     protected open fun loadXmlKeyFile(keyInputStream: InputStream): ByteArray? {
@@ -194,12 +191,6 @@ abstract class DatabaseVersioned<
      * -------------------------------------
      */
 
-    fun doForEachGroupInIndex(action: (Group) -> Unit) {
-        for (group in groupIndexes) {
-            action.invoke(group.value)
-        }
-    }
-
     /**
      * Determine if an id number is already in use
      *
@@ -215,14 +206,7 @@ abstract class DatabaseVersioned<
         return groupIndexes.values
     }
 
-    fun setGroupIndexes(groupList: List<Group>) {
-        this.groupIndexes.clear()
-        for (currentGroup in groupList) {
-            this.groupIndexes[currentGroup.nodeId] = currentGroup
-        }
-    }
-
-    fun getGroupById(id: NodeId<GroupId>): Group? {
+    open fun getGroupById(id: NodeId<GroupId>): Group? {
         return this.groupIndexes[id]
     }
 
@@ -246,16 +230,6 @@ abstract class DatabaseVersioned<
         this.groupIndexes.remove(group.nodeId)
     }
 
-    fun numberOfGroups(): Int {
-        return groupIndexes.size
-    }
-
-    fun doForEachEntryInIndex(action: (Entry) -> Unit) {
-        for (entry in entryIndexes) {
-            action.invoke(entry.value)
-        }
-    }
-
     fun isEntryIdUsed(id: NodeId<EntryId>): Boolean {
         return entryIndexes.containsKey(id)
     }
@@ -268,6 +242,10 @@ abstract class DatabaseVersioned<
         return this.entryIndexes[id]
     }
 
+    fun findEntry(predicate: (Entry) -> Boolean): Entry? {
+        return this.entryIndexes.values.find(predicate)
+    }
+
     fun addEntryIndex(entry: Entry) {
         val entryId = entry.nodeId
         if (entryIndexes.containsKey(entryId)) {
@@ -288,11 +266,7 @@ abstract class DatabaseVersioned<
         this.entryIndexes.remove(entry.nodeId)
     }
 
-    fun numberOfEntries(): Int {
-        return entryIndexes.size
-    }
-
-    open fun clearCache() {
+    open fun clearIndexes() {
         this.groupIndexes.clear()
         this.entryIndexes.clear()
     }
@@ -322,7 +296,7 @@ abstract class DatabaseVersioned<
         }
     }
 
-    fun removeGroupFrom(groupToRemove: Group, parent: Group?) {
+    open fun removeGroupFrom(groupToRemove: Group, parent: Group?) {
         // Remove tree from parent tree
         parent?.removeChildGroup(groupToRemove)
         removeGroupIndex(groupToRemove)
@@ -349,15 +323,6 @@ abstract class DatabaseVersioned<
         removeEntryIndex(entryToRemove)
     }
 
-    // TODO Delete group
-    fun undoDeleteGroupFrom(group: Group, origParent: Group?) {
-        addGroupTo(group, origParent)
-    }
-
-    open fun undoDeleteEntryFrom(entry: Entry, origParent: Group?) {
-        addEntryTo(entry, origParent)
-    }
-
     abstract fun isInRecycleBin(group: Group): Boolean
 
     fun isGroupSearchable(group: Group?, omitBackup: Boolean): Boolean {
@@ -368,6 +333,39 @@ abstract class DatabaseVersioned<
         return true
     }
 
+    fun clearIconsCache() {
+        iconsManager.doForEachCustomIcon { _, binary ->
+            try {
+                binary.clear(binaryCache)
+            } catch (e: Exception) {
+                Log.e(TAG, "Unable to clear icon binary cache", e)
+            }
+        }
+        iconsManager.clear()
+    }
+
+    fun clearAttachmentsCache() {
+        attachmentPool.doForEachBinary { _, binary ->
+            try {
+                binary.clear(binaryCache)
+            } catch (e: Exception) {
+                Log.e(TAG, "Unable to clear attachment binary cache", e)
+            }
+        }
+        attachmentPool.clear()
+    }
+
+    fun clearBinaries() {
+        binaryCache.clear()
+    }
+
+    fun clearAll() {
+        clearIndexes()
+        clearIconsCache()
+        clearAttachmentsCache()
+        clearBinaries()
+    }
+
     companion object {
 
         private const val TAG = "DatabaseVersioned"

app/src/main/java/com/kunzisoft/keepass/database/element/entry/EntryKDB.kt

@@ -25,6 +25,7 @@ import com.kunzisoft.keepass.database.element.Attachment
 import com.kunzisoft.keepass.database.element.binary.AttachmentPool
 import com.kunzisoft.keepass.database.element.binary.BinaryData
 import com.kunzisoft.keepass.database.element.group.GroupKDB
+import com.kunzisoft.keepass.database.element.icon.IconImageStandard
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard.Companion.KEY_ID
 import com.kunzisoft.keepass.database.element.node.NodeId
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
@@ -60,18 +61,43 @@ class EntryKDB : EntryVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
     private var binaryDataId: Int? = null
 
     // Determine if this is a MetaStream entry
-    val isMetaStream: Boolean
-        get() {
-            if (notes.isEmpty()) return false
-            if (binaryDescription != PMS_ID_BINDESC) return false
-            if (title.isEmpty()) return false
-            if (title != PMS_ID_TITLE) return false
-            if (username.isEmpty()) return false
-            if (username != PMS_ID_USER) return false
-            if (url.isEmpty()) return false
-            if (url != PMS_ID_URL) return false
-            return icon.standard.id == KEY_ID
-        }
+    fun isMetaStream(): Boolean {
+        if (notes.isEmpty()) return false
+        if (binaryDescription != PMS_ID_BINDESC) return false
+        if (title.isEmpty()) return false
+        if (title != PMS_ID_TITLE) return false
+        if (username.isEmpty()) return false
+        if (username != PMS_ID_USER) return false
+        if (url.isEmpty()) return false
+        if (url != PMS_ID_URL) return false
+        return icon.standard.id == KEY_ID
+    }
+
+    fun isMetaStreamDefaultUsername(): Boolean {
+        return isMetaStream() && notes == PMS_STREAM_DEFAULTUSER
+    }
+
+    private fun setMetaStream() {
+        binaryDescription = PMS_ID_BINDESC
+        title = PMS_ID_TITLE
+        username = PMS_ID_USER
+        url = PMS_ID_URL
+        icon.standard = IconImageStandard(KEY_ID)
+    }
+
+    fun setMetaStreamDefaultUsername() {
+        notes = PMS_STREAM_DEFAULTUSER
+        setMetaStream()
+    }
+
+    fun isMetaStreamDatabaseColor(): Boolean {
+        return isMetaStream() && notes == PMS_STREAM_DBCOLOR
+    }
+
+    fun setMetaStreamDatabaseColor() {
+        notes = PMS_STREAM_DBCOLOR
+        setMetaStream()
+    }
 
     override fun initNodeId(): NodeId<UUID> {
         return NodeIdUUID()
@@ -113,8 +139,9 @@ class EntryKDB : EntryVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
         dest.writeInt(binaryDataId ?: -1)
     }
 
-    fun updateWith(source: EntryKDB) {
-        super.updateWith(source)
+    fun updateWith(source: EntryKDB,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         title = source.title
         username = source.username
         password = source.password
@@ -184,6 +211,13 @@ class EntryKDB : EntryVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
         private const val PMS_ID_USER = "SYSTEM"
         private const val PMS_ID_URL = "$"
 
+         const val PMS_STREAM_SIMPLESTATE = "Simple UI State"
+         const val PMS_STREAM_DEFAULTUSER = "Default User Name"
+         const val PMS_STREAM_SEARCHHISTORYITEM = "Search History Item"
+         const val PMS_STREAM_CUSTOMKVP = "Custom KVP"
+         const val PMS_STREAM_DBCOLOR = "Database Color"
+         const val PMS_STREAM_KPXICON2 = "KPX_CUSTOM_ICONS_2"
+
         @JvmField
         val CREATOR: Parcelable.Creator<EntryKDB> = object : Parcelable.Creator<EntryKDB> {
             override fun createFromParcel(parcel: Parcel): EntryKDB {

app/src/main/java/com/kunzisoft/keepass/database/element/entry/EntryKDBX.kt

@@ -110,8 +110,10 @@ class EntryKDBX : EntryVersioned<UUID, UUID, GroupKDBX, EntryKDBX>, NodeKDBXInte
      * Update with deep copy of each entry element
      * @param source
      */
-    fun updateWith(source: EntryKDBX, copyHistory: Boolean = true) {
-        super.updateWith(source)
+    fun updateWith(source: EntryKDBX,
+                   copyHistory: Boolean = true,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         usageCount = source.usageCount
         locationChanged = DateInstant(source.locationChanged)
         customData = CustomData(source.customData)

app/src/main/java/com/kunzisoft/keepass/database/element/group/GroupKDB.kt

@@ -53,8 +53,9 @@ class GroupKDB : GroupVersioned<Int, UUID, GroupKDB, EntryKDB>, NodeKDBInterface
         dest.writeInt(groupFlags)
     }
 
-    fun updateWith(source: GroupKDB) {
-        super.updateWith(source)
+    fun updateWith(source: GroupKDB,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         groupFlags = source.groupFlags
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/group/GroupKDBX.kt

@@ -102,8 +102,9 @@ class GroupKDBX : GroupVersioned<UUID, UUID, GroupKDBX, EntryKDBX>, NodeKDBXInte
         dest.writeParcelable(ParcelUuid(previousParentGroup), flags)
     }
 
-    fun updateWith(source: GroupKDBX) {
-        super.updateWith(source)
+    fun updateWith(source: GroupKDBX,
+                   updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         usageCount = source.usageCount
         locationChanged = DateInstant(source.locationChanged)
         // Add all custom elements in map

app/src/main/java/com/kunzisoft/keepass/database/element/group/GroupVersioned.kt

@@ -51,12 +51,15 @@ abstract class GroupVersioned
         dest.writeString(titleGroup)
     }
 
-    protected fun updateWith(source: GroupVersioned<GroupId, EntryId, Group, Entry>) {
-        super.updateWith(source)
+    protected fun updateWith(source: GroupVersioned<GroupId, EntryId, Group, Entry>,
+                             updateParents: Boolean = true) {
+        super.updateWith(source, updateParents)
         titleGroup = source.titleGroup
-        removeChildren()
-        childGroups.addAll(source.childGroups)
-        childEntries.addAll(source.childEntries)
+        if (updateParents) {
+            removeChildren()
+            childGroups.addAll(source.childGroups)
+            childEntries.addAll(source.childEntries)
+        }
     }
 
     override var title: String

app/src/main/java/com/kunzisoft/keepass/database/element/icon/IconImageStandard.kt

@@ -81,6 +81,7 @@ class IconImageStandard : IconImageDraw {
         const val CREDIT_CARD_ID = 37
         const val TRASH_ID = 43
         const val FOLDER_ID = 48
+        const val DATABASE_ID = 50
         const val LIST_ID = 57
         const val BUILD_ID = 59
         const val STAR_ID = 61

app/src/main/java/com/kunzisoft/keepass/database/element/icon/IconsManager.kt

@@ -28,12 +28,12 @@ import com.kunzisoft.keepass.database.element.icon.IconImageStandard.Companion.K
 import com.kunzisoft.keepass.icons.IconPack.Companion.NB_ICONS
 import java.util.*
 
-class IconsManager(binaryCache: BinaryCache) {
+class IconsManager {
 
     private val standardCache = List(NB_ICONS) {
         IconImageStandard(it)
     }
-    private val customCache = CustomIconPool(binaryCache)
+    private val customCache = CustomIconPool()
 
     fun getIcon(iconId: Int): IconImageStandard {
         val searchIconId = if (IconImageStandard.isCorrectIconId(iconId)) iconId else KEY_ID
@@ -50,29 +50,23 @@ class IconsManager(binaryCache: BinaryCache) {
      *  Custom
      */
 
-    fun buildNewCustomIcon(key: UUID? = null,
-                           result: (IconImageCustom, BinaryData?) -> Unit) {
-        // Create a binary file for a brand new custom icon
-        addCustomIcon(key, "", null, false, result)
-    }
-
     fun addCustomIcon(key: UUID? = null,
                       name: String,
                       lastModificationTime: DateInstant?,
-                      smallSize: Boolean,
+                      builder: (uniqueBinaryId: String) -> BinaryData,
                       result: (IconImageCustom, BinaryData?) -> Unit) {
-        customCache.put(key, name, lastModificationTime, smallSize, result)
+        customCache.put(key, name, lastModificationTime, builder, result)
     }
 
-    fun getIcon(iconUuid: UUID): IconImageCustom {
-        return customCache.getCustomIcon(iconUuid) ?: IconImageCustom(iconUuid)
+    fun getIcon(iconUuid: UUID): IconImageCustom? {
+        return customCache.getCustomIcon(iconUuid)
     }
 
     fun isCustomIconBinaryDuplicate(binaryData: BinaryData): Boolean {
         return customCache.isBinaryDuplicate(binaryData)
     }
 
-    fun removeCustomIcon(binaryCache: BinaryCache, iconUuid: UUID) {
+    fun removeCustomIcon(iconUuid: UUID, binaryCache: BinaryCache) {
         val binary = customCache[iconUuid]
         customCache.remove(iconUuid)
         try {
@@ -99,12 +93,8 @@ class IconsManager(binaryCache: BinaryCache) {
     /**
      * Clear the cache of icons
      */
-    fun clearCache() {
-        try {
-            customCache.clear()
-        } catch(e: Exception) {
-            Log.e(TAG, "Unable to clear cache", e)
-        }
+    fun clear() {
+        customCache.clear()
     }
 
     companion object {

app/src/main/java/com/kunzisoft/keepass/database/element/node/Node.kt

@@ -32,6 +32,19 @@ interface Node: NodeVersionedInterface<Group> {
     fun removeParent() {
         parent = null
     }
+
+    fun getPathString(): String {
+        val pathNodes = mutableListOf<Node>()
+        var currentNode = this
+        pathNodes.add(0, currentNode)
+        while (currentNode.containsParent()) {
+            currentNode.parent?.let { parent ->
+                currentNode = parent
+                pathNodes.add(0, currentNode)
+            }
+        }
+        return pathNodes.joinToString("/") { it.title }
+    }
 }
 
 /**

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeId.kt

@@ -44,4 +44,6 @@ abstract class NodeId<Id> : Parcelable {
     override fun hashCode(): Int {
         return id?.hashCode() ?: 0
     }
+
+    abstract fun toVisualString(): String?
 }

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeIdInt.kt

@@ -63,6 +63,10 @@ class NodeIdInt : NodeId<Int> {
         return id.toString()
     }
 
+    override fun toVisualString(): String? {
+        return null
+    }
+
     companion object {
         @JvmField
         val CREATOR: Parcelable.Creator<NodeIdInt> = object : Parcelable.Creator<NodeIdInt> {

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeIdUUID.kt

@@ -64,6 +64,10 @@ class NodeIdUUID : NodeId<UUID> {
         return UuidUtil.toHexString(id) ?: id.toString()
     }
 
+    override fun toVisualString(): String {
+        return toString()
+    }
+
     companion object {
         @JvmField
         val CREATOR: Parcelable.Creator<NodeIdUUID> = object : Parcelable.Creator<NodeIdUUID> {

app/src/main/java/com/kunzisoft/keepass/database/element/node/NodeVersioned.kt

@@ -68,9 +68,12 @@ abstract class NodeVersioned<IdType, Parent : GroupVersionedInterface<Parent, En
         return 0
     }
 
-    protected fun updateWith(source: NodeVersioned<IdType, Parent, Entry>) {
+    protected fun updateWith(source: NodeVersioned<IdType, Parent, Entry>,
+                             updateParents: Boolean = true) {
         this.nodeId = copyNodeId(source.nodeId)
-        this.parent = source.parent
+        if (updateParents) {
+            this.parent = source.parent
+        }
         this.icon = source.icon
         this.creationTime = DateInstant(source.creationTime)
         this.lastModificationTime = DateInstant(source.lastModificationTime)

app/src/main/java/com/kunzisoft/keepass/database/element/template/Template.kt

@@ -23,10 +23,8 @@ import android.os.ParcelUuid
 import android.os.Parcelable
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
 import com.kunzisoft.keepass.database.element.icon.IconImage
-import com.kunzisoft.keepass.database.element.icon.IconImageStandard
 import java.util.*
 import kotlin.collections.ArrayList
-import kotlin.collections.LinkedHashMap
 
 class Template : Parcelable {
 
@@ -34,6 +32,8 @@ class Template : Parcelable {
     var uuid: UUID = DatabaseVersioned.UUID_ZERO
     var title = ""
     var icon = IconImage()
+    var backgroundColor: Int? = null
+    var foregroundColor: Int? = null
     var sections: MutableList<TemplateSection> = ArrayList()
         private set
 
@@ -41,7 +41,8 @@ class Template : Parcelable {
                 title: String,
                 icon: IconImage,
                 section: TemplateSection,
-                version: Int = 1): this(uuid, title, icon, ArrayList<TemplateSection>().apply {
+                version: Int = 1)
+            : this(uuid, title, icon, ArrayList<TemplateSection>().apply {
         add(section)
     }, version)
 
@@ -49,11 +50,22 @@ class Template : Parcelable {
                 title: String,
                 icon: IconImage,
                 sections: List<TemplateSection>,
+                version: Int = 1)
+            : this(uuid, title, icon, null, null, sections, version)
+
+    constructor(uuid: UUID,
+                title: String,
+                icon: IconImage,
+                backgroundColor: Int?,
+                foregroundColor: Int?,
+                sections: List<TemplateSection>,
                 version: Int = 1) {
         this.version = version
         this.uuid = uuid
         this.title = title
         this.icon = icon
+        this.backgroundColor = backgroundColor
+        this.foregroundColor = foregroundColor
         this.sections.clear()
         this.sections.addAll(sections)
     }
@@ -63,6 +75,8 @@ class Template : Parcelable {
         this.uuid = template.uuid
         this.title = template.title
         this.icon = template.icon
+        this.backgroundColor = template.backgroundColor
+        this.foregroundColor = template.foregroundColor
         this.sections.clear()
         this.sections.addAll(template.sections)
     }
@@ -72,6 +86,8 @@ class Template : Parcelable {
         uuid = parcel.readParcelable<ParcelUuid>(ParcelUuid::class.java.classLoader)?.uuid ?: uuid
         title = parcel.readString() ?: title
         icon = parcel.readParcelable(IconImage::class.java.classLoader) ?: icon
+        backgroundColor = parcel.readInt()
+        foregroundColor = parcel.readInt()
         parcel.readList(sections, TemplateSection::class.java.classLoader)
     }
 
@@ -80,6 +96,8 @@ class Template : Parcelable {
         parcel.writeParcelable(ParcelUuid(uuid), flags)
         parcel.writeString(title)
         parcel.writeParcelable(icon, flags)
+        parcel.writeInt(backgroundColor ?: -1)
+        parcel.writeInt(foregroundColor ?: -1)
         parcel.writeList(sections)
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateAttributeAction.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 enum class TemplateAttributeAction {

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateAttributeOption.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.os.Parcel

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateBuilder.kt

@@ -1,9 +1,26 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import com.kunzisoft.keepass.database.element.icon.IconImage
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard
 import java.util.*
-import kotlin.collections.LinkedHashMap
 
 class TemplateBuilder {
 

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateEngine.kt

@@ -1,6 +1,24 @@
 package com.kunzisoft.keepass.database.element.template
-
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 import android.content.res.Resources
+import android.graphics.Color
 import android.util.Log
 import com.kunzisoft.keepass.R
 import com.kunzisoft.keepass.database.element.Field
@@ -26,7 +44,7 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
             if (templateGroup != null) {
                 templates.add(Template.STANDARD)
                 templateGroup.getChildEntries().forEach { templateEntry ->
-                    getTemplateFromTemplateEntry(templateEntry)?.let {
+                    getTemplateFromTemplateEntry(templateEntry).let {
                         mCacheTemplates[templateEntry.id] = it
                         templates.add(it)
                     }
@@ -70,7 +88,7 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
                 return mCacheTemplates[uuid]
             else {
                 mDatabase.getEntryById(uuid)?.let { templateEntry ->
-                    getTemplateFromTemplateEntry(templateEntry)?.let { newTemplate ->
+                    getTemplateFromTemplateEntry(templateEntry).let { newTemplate ->
                         mCacheTemplates[uuid] = newTemplate
                         return newTemplate
                     }
@@ -134,7 +152,7 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
         return TemplateSection(sectionAttributes)
     }
 
-    private fun getTemplateFromTemplateEntry(templateEntry: EntryKDBX): Template? {
+    private fun getTemplateFromTemplateEntry(templateEntry: EntryKDBX): Template {
 
         val templateEntryDecoded = decodeTemplateEntry(templateEntry)
         val templateSections = mutableListOf<TemplateSection>()
@@ -149,7 +167,28 @@ abstract class TemplateEngine(private val mDatabase: DatabaseKDBX) {
         }
         templateSections.add(buildTemplateSectionFromFields(sectionFields))
 
-        return Template(templateEntry.id, templateEntry.title, templateEntry.icon, templateSections, getVersion())
+        var backgroundColor: Int? = null
+        templateEntry.backgroundColor.let {
+            try {
+                backgroundColor = Color.parseColor(it)
+            } catch (e: Exception) {}
+        }
+        var foregroundColor: Int? = null
+        templateEntry.foregroundColor.let {
+            try {
+                foregroundColor = Color.parseColor(it)
+            } catch (e: Exception) {}
+        }
+
+        return Template(
+            templateEntry.id,
+            templateEntry.title,
+            templateEntry.icon,
+            backgroundColor,
+            foregroundColor,
+            templateSections,
+            getVersion()
+        )
     }
 
     companion object {

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateEngineCompatible.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.util.Log
@@ -208,16 +226,8 @@ class TemplateEngineCompatible(database: DatabaseKDBX): TemplateEngine(database)
                 when (attribute.type) {
                     TemplateAttributeType.TEXT -> {
                         try {
-                            when (attribute.options.getNumberLines()) {
-                                1 -> {
-                                    // If one line, default attribute option is number of chars
-                                    attribute.options.setNumberChars(defaultOption.toInt())
-                                }
-                                else -> {
-                                    // else it's number of lines
-                                    attribute.options.setNumberLines(defaultOption.toInt())
-                                }
-                            }
+                            // It's always a number of lines...
+                            attribute.options.setNumberLines(defaultOption.toInt())
                         } catch (e: Exception) {
                             Log.e(TAG, "Unable to transform default text option", e)
                         }
@@ -265,6 +275,9 @@ class TemplateEngineCompatible(database: DatabaseKDBX): TemplateEngine(database)
                 entryCopy.putField(field)
             }
         }
+        // Add colors
+        entryCopy.foregroundColor = templateEntry.foregroundColor
+        entryCopy.backgroundColor = templateEntry.backgroundColor
 
         return entryCopy
     }
@@ -367,6 +380,9 @@ class TemplateEngineCompatible(database: DatabaseKDBX): TemplateEngine(database)
                 }
             }
         }
+        // Add colors
+        entryCopy.foregroundColor = templateEntry.foregroundColor
+        entryCopy.backgroundColor = templateEntry.backgroundColor
         return entryCopy
     }
 

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateField.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.content.Context
@@ -27,7 +45,7 @@ object TemplateField {
     const val LABEL_DATE_OF_ISSUE = "Date of issue"
     const val LABEL_EMAIL = "Email"
     const val LABEL_EMAIL_ADDRESS = "Email address"
-    const val LABEL_WIRELESS = "Wifi"
+    const val LABEL_WIRELESS = "Wi-Fi"
     const val LABEL_SSID = "SSID"
     const val LABEL_TYPE = "Type"
     const val LABEL_CRYPTOCURRENCY = "Cryptocurrency wallet"

app/src/main/java/com/kunzisoft/keepass/database/element/template/TemplateSection.kt

@@ -1,3 +1,21 @@
+/*
+ * Copyright 2021 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.kunzisoft.keepass.database.element.template
 
 import android.os.Parcel

app/src/main/java/com/kunzisoft/keepass/database/exception/DatabaseException.kt

@@ -46,6 +46,7 @@ open class LoadDatabaseException : DatabaseException {
     @StringRes
     override var errorId: Int = R.string.error_load_database
     constructor() : super()
+    constructor(string: String) : super(string)
     constructor(throwable: Throwable) : super(throwable)
 }
 
@@ -53,6 +54,7 @@ class FileNotFoundDatabaseException : LoadDatabaseException {
     @StringRes
     override var errorId: Int = R.string.file_not_found_content
     constructor() : super()
+    constructor(string: String) : super(string)
     constructor(exception: Throwable) : super(exception)
 }
 
@@ -76,6 +78,7 @@ class IODatabaseException : LoadDatabaseException {
     @StringRes
     override var errorId: Int = R.string.error_load_database
     constructor() : super()
+    constructor(string: String) : super(string)
     constructor(exception: Throwable) : super(exception)
 }
 

app/src/main/java/com/kunzisoft/keepass/database/file/DatabaseHeader.kt

@@ -19,8 +19,6 @@
  */
 package com.kunzisoft.keepass.database.file
 
-import com.kunzisoft.keepass.utils.UnsignedInt
-
 abstract class DatabaseHeader {
 
     /**
@@ -33,8 +31,4 @@ abstract class DatabaseHeader {
      */
     var encryptionIV = ByteArray(16)
 
-    companion object {
-        val PWM_DBSIG_1 = UnsignedInt(-0x655d26fd)
-    }
-
 }

app/src/main/java/com/kunzisoft/keepass/database/file/DatabaseHeaderKDB.kt

@@ -34,7 +34,7 @@ class DatabaseHeaderKDB : DatabaseHeader() {
      */
     var transformSeed = ByteArray(32)
 
-    var signature1 = UnsignedInt(0)                  // = PWM_DBSIG_1
+    var signature1 = UnsignedInt(0)                  // = DBSIG_1
     var signature2 = UnsignedInt(0)                  // = DBSIG_2
     var flags= UnsignedInt(0)
     var version= UnsignedInt(0)
@@ -84,9 +84,9 @@ class DatabaseHeaderKDB : DatabaseHeader() {
     companion object {
 
         // DB sig from KeePass 1.03
-        val DBSIG_2 = UnsignedInt(-0x4ab4049b)
-        // DB sig from KeePass 1.03
-        val DBVER_DW = UnsignedInt(0x00030003)
+        val DBSIG_1 = UnsignedInt(-0x655d26fd) // 0x9AA2D903
+        val DBSIG_2 = UnsignedInt(-0x4ab4049b) // 0xB54BFB65
+        val DBVER_DW = UnsignedInt(0x00030004)
 
         val FLAG_SHA2 = UnsignedInt(1)
         val FLAG_RIJNDAEL = UnsignedInt(2)
@@ -97,7 +97,7 @@ class DatabaseHeaderKDB : DatabaseHeader() {
         const val BUF_SIZE = 124
 
         fun matchesHeader(sig1: UnsignedInt, sig2: UnsignedInt): Boolean {
-            return sig1.toKotlinInt() == PWM_DBSIG_1.toKotlinInt() && sig2.toKotlinInt() == DBSIG_2.toKotlinInt()
+            return sig1.toKotlinInt() == DBSIG_1.toKotlinInt() && sig2.toKotlinInt() == DBSIG_2.toKotlinInt()
         }
 
         fun compatibleHeaders(one: UnsignedInt, two: UnsignedInt): Boolean {

app/src/main/java/com/kunzisoft/keepass/database/file/DatabaseHeaderKDBX.kt

@@ -20,7 +20,6 @@
 package com.kunzisoft.keepass.database.file
 
 import com.kunzisoft.encrypt.HashManager
-import com.kunzisoft.keepass.database.action.node.NodeHandler
 import com.kunzisoft.keepass.database.crypto.CrsAlgorithm
 import com.kunzisoft.keepass.database.crypto.VariantDictionary
 import com.kunzisoft.keepass.database.crypto.kdf.AesKdf
@@ -28,9 +27,6 @@ import com.kunzisoft.keepass.database.crypto.kdf.KdfFactory
 import com.kunzisoft.keepass.database.crypto.kdf.KdfParameters
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
-import com.kunzisoft.keepass.database.element.entry.EntryKDBX
-import com.kunzisoft.keepass.database.element.group.GroupKDBX
-import com.kunzisoft.keepass.database.element.node.NodeKDBXInterface
 import com.kunzisoft.keepass.database.exception.VersionDatabaseException
 import com.kunzisoft.keepass.stream.CopyInputStream
 import com.kunzisoft.keepass.utils.*
@@ -87,71 +83,10 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
     inner class HeaderAndHash(var header: ByteArray, var hash: ByteArray)
 
     init {
-        this.version = getMinKdbxVersion(databaseV4) // Only for writing
+        this.version = databaseV4.getMinKdbxVersion()
         this.masterSeed = ByteArray(32)
     }
 
-    private open class NodeOperationHandler<T: NodeKDBXInterface> : NodeHandler<T>() {
-        var containsCustomData = false
-        override fun operate(node: T): Boolean {
-            if (node.customData.isNotEmpty()) {
-                containsCustomData = true
-            }
-            return true
-        }
-    }
-
-    private inner class EntryOperationHandler: NodeOperationHandler<EntryKDBX>() {
-        var passwordQualityEstimationDisabled = false
-        override fun operate(node: EntryKDBX): Boolean {
-            if (!node.qualityCheck) {
-                passwordQualityEstimationDisabled = true
-            }
-            return super.operate(node)
-        }
-    }
-
-    private inner class GroupOperationHandler: NodeOperationHandler<GroupKDBX>() {
-        var containsTags = false
-        override fun operate(node: GroupKDBX): Boolean {
-            if (!node.tags.isEmpty())
-                containsTags = true
-            return super.operate(node)
-        }
-    }
-
-    private fun getMinKdbxVersion(databaseKDBX: DatabaseKDBX): UnsignedInt {
-        val entryHandler = EntryOperationHandler()
-        val groupHandler = GroupOperationHandler()
-        databaseKDBX.rootGroup?.doForEachChildAndForIt(entryHandler, groupHandler)
-
-        // https://keepass.info/help/kb/kdbx_4.1.html
-        val containsGroupWithTag = groupHandler.containsTags
-        val containsEntryWithPasswordQualityEstimationDisabled = entryHandler.passwordQualityEstimationDisabled
-        val containsCustomIconWithNameOrLastModificationTime = databaseKDBX.iconsManager.containsCustomIconWithNameOrLastModificationTime()
-        val containsHeaderCustomDataWithLastModificationTime = databaseKDBX.customData.containsItemWithLastModificationTime()
-
-        // https://keepass.info/help/kb/kdbx_4.html
-        // If AES is not use, it's at least 4.0
-        val kdfIsNotAes = databaseKDBX.kdfParameters?.uuid != AesKdf.CIPHER_UUID
-        val containsHeaderCustomData = databaseKDBX.customData.isNotEmpty()
-        val containsNodeCustomData = entryHandler.containsCustomData || groupHandler.containsCustomData
-
-        // Check each condition to determine version
-        return if (containsGroupWithTag
-                || containsEntryWithPasswordQualityEstimationDisabled
-                || containsCustomIconWithNameOrLastModificationTime
-                || containsHeaderCustomDataWithLastModificationTime) {
-            FILE_VERSION_41
-        } else if (kdfIsNotAes
-                || containsHeaderCustomData
-                || containsNodeCustomData) {
-            FILE_VERSION_40
-        } else {
-            FILE_VERSION_31
-        }
-    }
-
     /** Assumes the input stream is at the beginning of the .kdbx file
      * @param inputStream
      * @throws IOException
@@ -256,8 +191,7 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
         if (pbId == null || pbId.size != 16) {
             throw IOException("Invalid cipher ID.")
         }
-
-        databaseV4.cipherUuid = bytes16ToUuid(pbId)
+        databaseV4.setEncryptionAlgorithmFromUUID(bytes16ToUuid(pbId))
     }
 
     private fun setTransformRound(roundsByte: ByteArray) {
@@ -311,8 +245,9 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
 
     companion object {
 
-        val DBSIG_PRE2 = UnsignedInt(-0x4ab4049a)
-        val DBSIG_2 = UnsignedInt(-0x4ab40499)
+        val DBSIG_1 = UnsignedInt(-0x655d26fd) // 0x9AA2D903
+        val DBSIG_PRE2 = UnsignedInt(-0x4ab4049a) // 0xB54BFB66
+        val DBSIG_2 = UnsignedInt(-0x4ab40499) // 0xB54BFB67
 
         private val FILE_VERSION_CRITICAL_MASK = UnsignedInt(-0x10000)
         val FILE_VERSION_31 = UnsignedInt(0x00030001)
@@ -335,7 +270,7 @@ class DatabaseHeaderKDBX(private val databaseV4: DatabaseKDBX) : DatabaseHeader(
         }
 
         fun matchesHeader(sig1: UnsignedInt, sig2: UnsignedInt): Boolean {
-            return sig1 == PWM_DBSIG_1 && (sig2 == DBSIG_PRE2 || sig2 == DBSIG_2)
+            return sig1 == DBSIG_1 && (sig2 == DBSIG_PRE2 || sig2 == DBSIG_2)
         }
     }
 }

app/src/main/java/com/kunzisoft/keepass/database/file/input/DatabaseInput.kt

@@ -21,16 +21,12 @@ package com.kunzisoft.keepass.database.file.input
 
 import android.util.Log
 import com.kunzisoft.keepass.R
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
 import com.kunzisoft.keepass.database.exception.LoadDatabaseException
 import com.kunzisoft.keepass.tasks.ProgressTaskUpdater
-import java.io.File
 import java.io.InputStream
 
-abstract class DatabaseInput<D : DatabaseVersioned<*, *, *, *>>
-    (protected val cacheDirectory: File,
-     protected val isRAMSufficient: (memoryWanted: Long) -> Boolean) {
+abstract class DatabaseInput<D : DatabaseVersioned<*, *, *, *>> (protected var mDatabase: D) {
 
     private var startTimeKey = System.currentTimeMillis()
     private var startTimeContent = System.currentTimeMillis()
@@ -49,17 +45,13 @@ abstract class DatabaseInput<D : DatabaseVersioned<*, *, *, *>>
     abstract fun openDatabase(databaseInputStream: InputStream,
                               password: String?,
                               keyfileInputStream: InputStream?,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean = false): D
+                              progressTaskUpdater: ProgressTaskUpdater?): D
 
 
     @Throws(LoadDatabaseException::class)
     abstract fun openDatabase(databaseInputStream: InputStream,
                               masterKey: ByteArray,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean = false): D
+                              progressTaskUpdater: ProgressTaskUpdater?): D
 
     protected fun startKeyTimer(progressTaskUpdater: ProgressTaskUpdater?) {
         progressTaskUpdater?.updateMessage(R.string.retrieving_db_key)

app/src/main/java/com/kunzisoft/keepass/database/file/input/DatabaseInputKDB.kt

@@ -20,17 +20,16 @@
 
 package com.kunzisoft.keepass.database.file.input
 
+import android.graphics.Color
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.element.DateInstant
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.DatabaseKDB
 import com.kunzisoft.keepass.database.element.entry.EntryKDB
 import com.kunzisoft.keepass.database.element.group.GroupKDB
 import com.kunzisoft.keepass.database.element.node.NodeIdInt
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
 import com.kunzisoft.keepass.database.exception.*
-import com.kunzisoft.keepass.database.file.DatabaseHeader
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDB
 import com.kunzisoft.keepass.tasks.ProgressTaskUpdater
 import com.kunzisoft.keepass.utils.*
@@ -46,21 +45,15 @@ import kotlin.collections.HashMap
 /**
  * Load a KDB database file.
  */
-class DatabaseInputKDB(cacheDirectory: File,
-                       isRAMSufficient: (memoryWanted: Long) -> Boolean)
-    : DatabaseInput<DatabaseKDB>(cacheDirectory, isRAMSufficient) {
-
-    private lateinit var mDatabase: DatabaseKDB
+class DatabaseInputKDB(database: DatabaseKDB)
+    : DatabaseInput<DatabaseKDB>(database) {
 
     @Throws(LoadDatabaseException::class)
     override fun openDatabase(databaseInputStream: InputStream,
                               password: String?,
                               keyfileInputStream: InputStream?,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDB {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
+                              progressTaskUpdater: ProgressTaskUpdater?): DatabaseKDB {
+        return openDatabase(databaseInputStream, progressTaskUpdater) {
             mDatabase.retrieveMasterKey(password, keyfileInputStream)
         }
     }
@@ -68,11 +61,8 @@ class DatabaseInputKDB(cacheDirectory: File,
     @Throws(LoadDatabaseException::class)
     override fun openDatabase(databaseInputStream: InputStream,
                               masterKey: ByteArray,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDB {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
+                              progressTaskUpdater: ProgressTaskUpdater?): DatabaseKDB {
+        return openDatabase(databaseInputStream, progressTaskUpdater) {
             mDatabase.masterKey = masterKey
         }
     }
@@ -80,7 +70,6 @@ class DatabaseInputKDB(cacheDirectory: File,
     @Throws(LoadDatabaseException::class)
     private fun openDatabase(databaseInputStream: InputStream,
                              progressTaskUpdater: ProgressTaskUpdater?,
-                             fixDuplicateUUID: Boolean,
                              assignMasterKey: (() -> Unit)? = null): DatabaseKDB {
 
         try {
@@ -98,7 +87,7 @@ class DatabaseInputKDB(cacheDirectory: File,
             if (fileSize != (contentSize + DatabaseHeaderKDB.BUF_SIZE))
                 throw IOException("Header corrupted")
 
-            if (header.signature1 != DatabaseHeader.PWM_DBSIG_1
+            if (header.signature1 != DatabaseHeaderKDB.DBSIG_1
                     || header.signature2 != DatabaseHeaderKDB.DBSIG_2) {
                 throw SignatureDatabaseException()
             }
@@ -107,10 +96,6 @@ class DatabaseInputKDB(cacheDirectory: File,
                 throw VersionDatabaseException()
             }
 
-            mDatabase = DatabaseKDB()
-            mDatabase.binaryCache.cacheDirectory = cacheDirectory
-
-            mDatabase.changeDuplicateId = fixDuplicateUUID
             assignMasterKey?.invoke()
 
             // Select algorithm
@@ -153,10 +138,6 @@ class DatabaseInputKDB(cacheDirectory: File,
                     )
             )
 
-            // New manual root because KDB contains multiple root groups (here available with getRootGroups())
-            val newRoot = mDatabase.createGroup()
-            mDatabase.rootGroup = newRoot
-
             // Import all nodes
             val groupLevelList = HashMap<GroupKDB, Int>()
             var newGroup: GroupKDB? = null
@@ -285,7 +266,7 @@ class DatabaseInputKDB(cacheDirectory: File,
                     0x000E -> {
                         newEntry?.let { entry ->
                             if (fieldSize > 0) {
-                                val binaryData = mDatabase.buildNewAttachment()
+                                val binaryData = mDatabase.buildNewBinaryAttachment()
                                 entry.putBinary(binaryData, mDatabase.attachmentPool)
                                 BufferedOutputStream(binaryData.getOutputDataStream(mDatabase.binaryCache)).use { outputStream ->
                                     cipherInputStream.readBytes(fieldSize) { buffer ->
@@ -303,7 +284,34 @@ class DatabaseInputKDB(cacheDirectory: File,
                             newGroup = null
                         }
                         newEntry?.let { entry ->
-                            mDatabase.addEntryIndex(entry)
+                            // Parse meta info
+                            when {
+                                entry.isMetaStreamDefaultUsername() -> {
+                                    var defaultUser = ""
+                                    entry.getBinary(mDatabase.attachmentPool)
+                                        ?.getInputDataStream(mDatabase.binaryCache)?.use {
+                                            defaultUser = String(it.readBytes())
+                                        }
+                                    mDatabase.defaultUserName = defaultUser
+                                }
+                                entry.isMetaStreamDatabaseColor() -> {
+                                    var color: Int? = null
+                                    entry.getBinary(mDatabase.attachmentPool)
+                                        ?.getInputDataStream(mDatabase.binaryCache)?.use {
+                                            val reverseColor = UnsignedInt(it.readBytes4ToUInt()).toKotlinInt()
+                                            color = Color.rgb(
+                                                Color.blue(reverseColor),
+                                                Color.green(reverseColor),
+                                                Color.red(reverseColor)
+                                            )
+                                        }
+                                    mDatabase.color = color
+                                }
+                                // TODO manager other meta stream
+                                else -> {
+                                    mDatabase.addEntryIndex(entry)
+                                }
+                            }
                             currentEntryNumber++
                             newEntry = null
                         }
@@ -323,16 +331,16 @@ class DatabaseInputKDB(cacheDirectory: File,
             stopContentTimer()
 
         } catch (e: LoadDatabaseException) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw e
         } catch (e: IOException) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw IODatabaseException(e)
         } catch (e: OutOfMemoryError) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw NoMemoryDatabaseException(e)
         } catch (e: Exception) {
-            mDatabase.clearCache()
+            mDatabase.clearAll()
             throw LoadDatabaseException(e)
         }
 

app/src/main/java/com/kunzisoft/keepass/database/file/input/DatabaseInputKDBX.kt

@@ -28,13 +28,13 @@ import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.HmacBlock
 import com.kunzisoft.keepass.database.element.*
 import com.kunzisoft.keepass.database.element.binary.BinaryData
-import com.kunzisoft.keepass.database.element.binary.LoadedKey
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX.Companion.BASE_64_FLAG
 import com.kunzisoft.keepass.database.element.database.DatabaseVersioned
 import com.kunzisoft.keepass.database.element.entry.EntryKDBX
 import com.kunzisoft.keepass.database.element.group.GroupKDBX
+import com.kunzisoft.keepass.database.element.icon.IconImageCustom
 import com.kunzisoft.keepass.database.element.node.NodeIdUUID
 import com.kunzisoft.keepass.database.element.node.NodeKDBXInterface
 import com.kunzisoft.keepass.database.element.security.ProtectedString
@@ -50,7 +50,6 @@ import com.kunzisoft.keepass.utils.*
 import org.xmlpull.v1.XmlPullParser
 import org.xmlpull.v1.XmlPullParserException
 import org.xmlpull.v1.XmlPullParserFactory
-import java.io.File
 import java.io.IOException
 import java.io.InputStream
 import java.io.UnsupportedEncodingException
@@ -63,12 +62,10 @@ import javax.crypto.CipherInputStream
 import javax.crypto.Mac
 import kotlin.math.min
 
-class DatabaseInputKDBX(cacheDirectory: File,
-                        isRAMSufficient: (memoryWanted: Long) -> Boolean)
-    : DatabaseInput<DatabaseKDBX>(cacheDirectory, isRAMSufficient) {
+class DatabaseInputKDBX(database: DatabaseKDBX)
+    : DatabaseInput<DatabaseKDBX>(database) {
 
     private var randomStream: StreamCipher? = null
-    private lateinit var mDatabase: DatabaseKDBX
 
     private var hashOfHeader: ByteArray? = null
 
@@ -97,15 +94,18 @@ class DatabaseInputKDBX(cacheDirectory: File,
     private var entryCustomDataKey: String? = null
     private var entryCustomDataValue: String? = null
 
+    private var isRAMSufficient: (memoryWanted: Long) -> Boolean = {true}
+
+    fun setMethodToCheckIfRAMIsSufficient(method: (memoryWanted: Long) -> Boolean) {
+        this.isRAMSufficient = method
+    }
+
     @Throws(LoadDatabaseException::class)
     override fun openDatabase(databaseInputStream: InputStream,
                               password: String?,
                               keyfileInputStream: InputStream?,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDBX {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
+                              progressTaskUpdater: ProgressTaskUpdater?): DatabaseKDBX {
+        return openDatabase(databaseInputStream, progressTaskUpdater) {
             mDatabase.retrieveMasterKey(password, keyfileInputStream)
         }
     }
@@ -113,11 +113,8 @@ class DatabaseInputKDBX(cacheDirectory: File,
     @Throws(LoadDatabaseException::class)
     override fun openDatabase(databaseInputStream: InputStream,
                               masterKey: ByteArray,
-                              loadedCipherKey: LoadedKey,
-                              progressTaskUpdater: ProgressTaskUpdater?,
-                              fixDuplicateUUID: Boolean): DatabaseKDBX {
-        return openDatabase(databaseInputStream, progressTaskUpdater, fixDuplicateUUID) {
-            mDatabase.binaryCache.loadedCipherKey = loadedCipherKey
+                              progressTaskUpdater: ProgressTaskUpdater?): DatabaseKDBX {
+        return openDatabase(databaseInputStream, progressTaskUpdater) {
             mDatabase.masterKey = masterKey
         }
     }
@@ -125,14 +122,9 @@ class DatabaseInputKDBX(cacheDirectory: File,
     @Throws(LoadDatabaseException::class)
     private fun openDatabase(databaseInputStream: InputStream,
                              progressTaskUpdater: ProgressTaskUpdater?,
-                             fixDuplicateUUID: Boolean,
                              assignMasterKey: (() -> Unit)? = null): DatabaseKDBX {
         try {
             startKeyTimer(progressTaskUpdater)
-            mDatabase = DatabaseKDBX()
-            mDatabase.binaryCache.cacheDirectory = cacheDirectory
-
-            mDatabase.changeDuplicateId = fixDuplicateUUID
 
             val header = DatabaseHeaderKDBX(mDatabase)
 
@@ -148,13 +140,10 @@ class DatabaseInputKDBX(cacheDirectory: File,
             stopKeyTimer()
             startContentTimer(progressTaskUpdater)
 
-            val engine: CipherEngine
             val cipher: Cipher
             try {
-                engine = EncryptionAlgorithm.getFrom(mDatabase.cipherUuid).cipherEngine
+                val engine: CipherEngine = mDatabase.encryptionAlgorithm.cipherEngine
                 engine.forcePaddingCompatibility = true
-                mDatabase.setDataEngine(engine)
-                mDatabase.encryptionAlgorithm = engine.getEncryptionAlgorithm()
                 cipher = engine.getCipher(Cipher.DECRYPT_MODE, mDatabase.finalKey!!, header.encryptionIV)
                 engine.forcePaddingCompatibility = false
             } catch (e: Exception) {
@@ -288,7 +277,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
                     val protectedFlag = dataInputStream.read().toByte() == DatabaseHeaderKDBX.KdbxBinaryFlags.Protected
                     val byteLength = size - 1
                     // No compression at this level
-                    val protectedBinary = mDatabase.buildNewAttachment(
+                    val protectedBinary = mDatabase.buildNewBinaryAttachment(
                             isRAMSufficient.invoke(byteLength.toLong()), false, protectedFlag)
                     protectedBinary.getOutputDataStream(mDatabase.binaryCache).use { outputStream ->
                         dataInputStream.readBytes(byteLength) { buffer ->
@@ -524,7 +513,8 @@ class DatabaseInputKDBX(cacheDirectory: File,
             } else if (name.equals(DatabaseKDBXXML.ElemIcon, ignoreCase = true)) {
                 ctxGroup?.icon?.standard = mDatabase.getStandardIcon(readUInt(xpp, UnsignedInt(0)).toKotlinInt())
             } else if (name.equals(DatabaseKDBXXML.ElemCustomIconID, ignoreCase = true)) {
-                ctxGroup?.icon?.custom = mDatabase.getCustomIcon(readUuid(xpp))
+                val iconUUID = readUuid(xpp)
+                ctxGroup?.icon?.custom = mDatabase.getCustomIcon(iconUUID) ?: IconImageCustom(iconUUID)
             } else if (name.equals(DatabaseKDBXXML.ElemTags, ignoreCase = true)) {
                 ctxGroup?.tags = readTags(xpp)
             } else if (name.equals(DatabaseKDBXXML.ElemPreviousParentGroup, ignoreCase = true)) {
@@ -583,7 +573,8 @@ class DatabaseInputKDBX(cacheDirectory: File,
             } else if (name.equals(DatabaseKDBXXML.ElemIcon, ignoreCase = true)) {
                 ctxEntry?.icon?.standard = mDatabase.getStandardIcon(readUInt(xpp, UnsignedInt(0)).toKotlinInt())
             } else if (name.equals(DatabaseKDBXXML.ElemCustomIconID, ignoreCase = true)) {
-                ctxEntry?.icon?.custom = mDatabase.getCustomIcon(readUuid(xpp))
+                val iconUUID = readUuid(xpp)
+                ctxEntry?.icon?.custom = mDatabase.getCustomIcon(iconUUID) ?: IconImageCustom(iconUUID)
             } else if (name.equals(DatabaseKDBXXML.ElemFgColor, ignoreCase = true)) {
                 ctxEntry?.foregroundColor = readString(xpp)
             } else if (name.equals(DatabaseKDBXXML.ElemBgColor, ignoreCase = true)) {
@@ -704,7 +695,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
             KdbContext.DeletedObject -> if (name.equals(DatabaseKDBXXML.ElemUuid, ignoreCase = true)) {
                 ctxDeletedObject?.uuid = readUuid(xpp)
             } else if (name.equals(DatabaseKDBXXML.ElemDeletionTime, ignoreCase = true)) {
-                ctxDeletedObject?.setDeletionTime(readDateInstant(xpp))
+                ctxDeletedObject?.deletionTime = readDateInstant(xpp)
             } else {
                 readUnknown(xpp)
             }
@@ -1009,7 +1000,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
                 var binaryRetrieve = mDatabase.attachmentPool[id]
                 // Create empty binary if not retrieved in pool
                 if (binaryRetrieve == null) {
-                    binaryRetrieve = mDatabase.buildNewAttachment(
+                    binaryRetrieve = mDatabase.buildNewBinaryAttachment(
                             smallSize = false,
                             compression = false,
                             protection = false,
@@ -1049,7 +1040,7 @@ class DatabaseInputKDBX(cacheDirectory: File,
             return null
 
         // Build the new binary and compress
-        val binaryAttachment = mDatabase.buildNewAttachment(
+        val binaryAttachment = mDatabase.buildNewBinaryAttachment(
                 isRAMSufficient.invoke(base64.length.toLong()), compressed, protected, binaryId)
         try {
             binaryAttachment.getOutputDataStream(mDatabase.binaryCache).use { outputStream ->

app/src/main/java/com/kunzisoft/keepass/database/file/output/DatabaseHeaderOutputKDBX.kt

@@ -25,7 +25,6 @@ import com.kunzisoft.keepass.database.crypto.VariantDictionary
 import com.kunzisoft.keepass.database.crypto.kdf.KdfParameters
 import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
 import com.kunzisoft.keepass.database.exception.DatabaseOutputException
-import com.kunzisoft.keepass.database.file.DatabaseHeader
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX
 import com.kunzisoft.keepass.database.file.DatabaseHeaderKDBX.Companion.FILE_VERSION_40
 import com.kunzisoft.keepass.stream.MacOutputStream
@@ -68,11 +67,11 @@ constructor(private val databaseKDBX: DatabaseKDBX,
     @Throws(IOException::class)
     fun output() {
 
-        mos.write4BytesUInt(DatabaseHeader.PWM_DBSIG_1)
+        mos.write4BytesUInt(DatabaseHeaderKDBX.DBSIG_1)
         mos.write4BytesUInt(DatabaseHeaderKDBX.DBSIG_2)
         mos.write4BytesUInt(header.version)
 
-        writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.CipherID, uuidTo16Bytes(databaseKDBX.cipherUuid))
+        writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.CipherID, uuidTo16Bytes(databaseKDBX.encryptionAlgorithm.uuid))
         writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.CompressionFlags, uIntTo4Bytes(DatabaseHeaderKDBX.getFlagFromCompression(databaseKDBX.compressionAlgorithm)))
         writeHeaderField(DatabaseHeaderKDBX.PwDbHeaderV4Fields.MasterSeed, header.masterSeed)
 
@@ -130,6 +129,6 @@ constructor(private val databaseKDBX: DatabaseKDBX,
     }
 
     companion object {
-        private val EndHeaderValue = byteArrayOf('\r'.toByte(), '\n'.toByte(), '\r'.toByte(), '\n'.toByte())
+        private val EndHeaderValue = byteArrayOf('\r'.code.toByte(), '\n'.code.toByte(), '\r'.code.toByte(), '\n'.code.toByte())
     }
 }

app/src/main/java/com/kunzisoft/keepass/database/file/output/DatabaseOutputKDB.kt

@@ -19,9 +19,11 @@
  */
 package com.kunzisoft.keepass.database.file.output
 
+import android.graphics.Color
 import com.kunzisoft.encrypt.HashManager
 import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.element.database.DatabaseKDB
+import com.kunzisoft.keepass.database.element.entry.EntryKDB
 import com.kunzisoft.keepass.database.element.group.GroupKDB
 import com.kunzisoft.keepass.database.exception.DatabaseOutputException
 import com.kunzisoft.keepass.database.file.DatabaseHeader
@@ -34,7 +36,6 @@ import java.io.ByteArrayOutputStream
 import java.io.IOException
 import java.io.OutputStream
 import java.security.*
-import java.util.*
 import javax.crypto.Cipher
 import javax.crypto.CipherOutputStream
 
@@ -44,6 +45,9 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
 
     private var headerHashBlock: ByteArray? = null
 
+    private var mGroupList = mutableListOf<GroupKDB>()
+    private var mEntryList = mutableListOf<EntryKDB>()
+
     @Throws(DatabaseOutputException::class)
     fun getFinalKey(header: DatabaseHeader): ByteArray? {
         try {
@@ -61,7 +65,7 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         // and remove any orphaned nodes that are no longer part of the tree hierarchy
         // also remove the virtual root not present in kdb
         val rootGroup = mDatabaseKDB.rootGroup
-        sortGroupsForOutput()
+        sortNodesForOutput()
 
         val header = outputHeader(mOutputStream)
 
@@ -91,6 +95,7 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         } finally {
             // Add again the virtual root group for better management
             mDatabaseKDB.rootGroup = rootGroup
+            clearParser()
         }
     }
 
@@ -105,7 +110,7 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
     override fun outputHeader(outputStream: OutputStream): DatabaseHeaderKDB {
         // Build header
         val header = DatabaseHeaderKDB()
-        header.signature1 = DatabaseHeader.PWM_DBSIG_1
+        header.signature1 = DatabaseHeaderKDB.DBSIG_1
         header.signature2 = DatabaseHeaderKDB.DBSIG_2
         header.flags = DatabaseHeaderKDB.FLAG_SHA2
 
@@ -120,8 +125,9 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         }
 
         header.version = DatabaseHeaderKDB.DBVER_DW
-        header.numGroups = UnsignedInt(mDatabaseKDB.numberOfGroups())
-        header.numEntries = UnsignedInt(mDatabaseKDB.numberOfEntries())
+        // To remove root
+        header.numGroups = UnsignedInt(mGroupList.size)
+        header.numEntries = UnsignedInt(mEntryList.size)
         header.numKeyEncRounds = UnsignedInt.fromKotlinLong(mDatabaseKDB.numberKeyEncryptionRounds)
 
         setIVs(header)
@@ -194,31 +200,89 @@ class DatabaseOutputKDB(private val mDatabaseKDB: DatabaseKDB,
         }
 
         // Groups
-        mDatabaseKDB.doForEachGroupInIndex { group ->
-            GroupOutputKDB(group, outputStream).output()
+        mGroupList.forEach { group ->
+            if (group != mDatabaseKDB.rootGroup) {
+                GroupOutputKDB(group, outputStream).output()
+            }
         }
         // Entries
-        mDatabaseKDB.doForEachEntryInIndex { entry ->
+        mEntryList.forEach { entry ->
             EntryOutputKDB(mDatabaseKDB, entry, outputStream).output()
         }
     }
 
-    private fun sortGroupsForOutput() {
-        val groupList = ArrayList<GroupKDB>()
-        // Rebuild list according to sorting order removing any orphaned groups
-        for (rootGroup in mDatabaseKDB.rootGroups) {
-            sortGroup(rootGroup, groupList)
-        }
-        mDatabaseKDB.setGroupIndexes(groupList)
+    private fun clearParser() {
+        mGroupList.clear()
+        mEntryList.clear()
     }
 
-    private fun sortGroup(group: GroupKDB, groupList: MutableList<GroupKDB>) {
+    private fun sortNodesForOutput() {
+        clearParser()
+        // Rebuild list according to sorting order removing any orphaned groups
+        // Do not keep root
+        mDatabaseKDB.rootGroup?.getChildGroups()?.let { rootSubGroups ->
+            for (rootGroup in rootSubGroups) {
+                sortGroup(rootGroup)
+            }
+        }
+    }
+
+    private fun sortGroup(group: GroupKDB) {
         // Add current tree
-        groupList.add(group)
+        mGroupList.add(group)
+
+        for (childEntry in group.getChildEntries()) {
+            if (!childEntry.isMetaStreamDefaultUsername()
+                && !childEntry.isMetaStreamDatabaseColor()) {
+                mEntryList.add(childEntry)
+            }
+        }
+
+        // Add MetaStream
+        if (mDatabaseKDB.defaultUserName.isNotEmpty()) {
+            val metaEntry = EntryKDB().apply {
+                setMetaStreamDefaultUsername()
+                setDefaultUsername(this)
+            }
+            mDatabaseKDB.addEntryTo(metaEntry, group)
+            mEntryList.add(metaEntry)
+        }
+        if (mDatabaseKDB.color != null) {
+            val metaEntry = EntryKDB().apply {
+                setMetaStreamDatabaseColor()
+                setDatabaseColor(this)
+            }
+            mDatabaseKDB.addEntryTo(metaEntry, group)
+            mEntryList.add(metaEntry)
+        }
 
         // Recurse over children
         for (childGroup in group.getChildGroups()) {
-            sortGroup(childGroup, groupList)
+            sortGroup(childGroup)
+        }
+    }
+
+    private fun setDefaultUsername(entryKDB: EntryKDB) {
+        val binaryData = mDatabaseKDB.buildNewBinaryAttachment()
+        entryKDB.putBinary(binaryData, mDatabaseKDB.attachmentPool)
+        BufferedOutputStream(binaryData.getOutputDataStream(mDatabaseKDB.binaryCache)).use { outputStream ->
+            outputStream.write(mDatabaseKDB.defaultUserName.toByteArray())
+        }
+    }
+
+    private fun setDatabaseColor(entryKDB: EntryKDB) {
+        val binaryData = mDatabaseKDB.buildNewBinaryAttachment()
+        entryKDB.putBinary(binaryData, mDatabaseKDB.attachmentPool)
+        BufferedOutputStream(binaryData.getOutputDataStream(mDatabaseKDB.binaryCache)).use { outputStream ->
+            var reversColor = Color.BLACK
+            mDatabaseKDB.color?.let {
+                reversColor = Color.rgb(
+                    Color.blue(it),
+                    Color.green(it),
+                    Color.red(it)
+                )
+            }
+            outputStream.write4BytesUInt(UnsignedInt(reversColor))
         }
     }
 

app/src/main/java/com/kunzisoft/keepass/database/file/output/DatabaseOutputKDBX.kt

@@ -24,9 +24,7 @@ import android.util.Log
 import android.util.Xml
 import com.kunzisoft.encrypt.StreamCipher
 import com.kunzisoft.keepass.database.action.node.NodeHandler
-import com.kunzisoft.keepass.database.crypto.CipherEngine
 import com.kunzisoft.keepass.database.crypto.CrsAlgorithm
-import com.kunzisoft.keepass.database.crypto.EncryptionAlgorithm
 import com.kunzisoft.keepass.database.crypto.kdf.KdfFactory
 import com.kunzisoft.keepass.database.element.*
 import com.kunzisoft.keepass.database.element.database.CompressionAlgorithm
@@ -48,11 +46,9 @@ import com.kunzisoft.keepass.database.file.DateKDBXUtil
 import com.kunzisoft.keepass.stream.HashedBlockOutputStream
 import com.kunzisoft.keepass.stream.HmacBlockOutputStream
 import com.kunzisoft.keepass.utils.*
-import org.joda.time.DateTime
 import org.xmlpull.v1.XmlSerializer
 import java.io.IOException
 import java.io.OutputStream
-import java.security.NoSuchAlgorithmException
 import java.security.SecureRandom
 import java.util.*
 import java.util.zip.GZIPOutputStream
@@ -70,18 +66,11 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
     private var header: DatabaseHeaderKDBX? = null
     private var hashOfHeader: ByteArray? = null
     private var headerHmac: ByteArray? = null
-    private var engine: CipherEngine? = null
 
     @Throws(DatabaseOutputException::class)
     override fun output() {
 
         try {
-            try {
-                engine = EncryptionAlgorithm.getFrom(mDatabaseKDBX.cipherUuid).cipherEngine
-            } catch (e: NoSuchAlgorithmException) {
-                throw DatabaseOutputException("No such cipher", e)
-            }
-
             header = outputHeader(mOutputStream)
 
             val osPlain: OutputStream = if (header!!.version.isBefore(FILE_VERSION_40)) {
@@ -241,6 +230,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
             writeString(DatabaseKDBXXML.ElemHeaderHash, String(Base64.encode(hashOfHeader!!, BASE_64_FLAG)))
         }
 
+        writeDateInstant(DatabaseKDBXXML.ElemSettingsChanged, mDatabaseKDBX.settingsChanged)
         writeString(DatabaseKDBXXML.ElemDbName, mDatabaseKDBX.name, true)
         writeDateInstant(DatabaseKDBXXML.ElemDbNameChanged, mDatabaseKDBX.nameChanged)
         writeString(DatabaseKDBXXML.ElemDbDesc, mDatabaseKDBX.description, true)
@@ -280,7 +270,10 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
     private fun attachStreamEncryptor(header: DatabaseHeaderKDBX, os: OutputStream): CipherOutputStream {
         val cipher: Cipher
         try {
-            cipher = engine!!.getCipher(Cipher.ENCRYPT_MODE, mDatabaseKDBX.finalKey!!, header.encryptionIV)
+            cipher = mDatabaseKDBX
+                .encryptionAlgorithm
+                .cipherEngine
+                .getCipher(Cipher.ENCRYPT_MODE, mDatabaseKDBX.finalKey!!, header.encryptionIV)
         } catch (e: Exception) {
             throw DatabaseOutputException("Invalid algorithm.", e)
         }
@@ -293,7 +286,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
         val random = super.setIVs(header)
         random.nextBytes(header.masterSeed)
 
-        val ivLength = engine!!.ivLength()
+        val ivLength = mDatabaseKDBX.encryptionAlgorithm.cipherEngine.ivLength()
         if (ivLength != header.encryptionIV.size) {
             header.encryptionIV = ByteArray(ivLength)
         }
@@ -592,7 +585,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
         xml.startTag(null, DatabaseKDBXXML.ElemDeletedObject)
 
         writeUuid(DatabaseKDBXXML.ElemUuid, value.uuid)
-        writeDateInstant(DatabaseKDBXXML.ElemDeletionTime, value.getDeletionTime())
+        writeDateInstant(DatabaseKDBXXML.ElemDeletionTime, value.deletionTime)
 
         xml.endTag(null, DatabaseKDBXXML.ElemDeletedObject)
     }
@@ -618,7 +611,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
     }
 
     @Throws(IllegalArgumentException::class, IllegalStateException::class, IOException::class)
-    private fun writeDeletedObjects(value: List<DeletedObject>) {
+    private fun writeDeletedObjects(value: Collection<DeletedObject>) {
         xml.startTag(null, DatabaseKDBXXML.ElemDeletedObjects)
 
         for (pdo in value) {
@@ -765,7 +758,7 @@ class DatabaseOutputKDBX(private val mDatabaseKDBX: DatabaseKDBX,
         var character: Char
         for (element in text) {
             character = element
-            val hexChar = character.toInt()
+            val hexChar = character.code
             if (
                     hexChar in 0x20..0xD7FF ||
                     hexChar == 0x9 ||

app/src/main/java/com/kunzisoft/keepass/database/merge/DatabaseKDBXMerger.kt

@@ -0,0 +1,473 @@
+/*
+ * Copyright 2022 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePassDX.
+ *
+ *  KeePassDX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.kunzisoft.keepass.database.merge
+
+import com.kunzisoft.keepass.database.action.node.NodeHandler
+import com.kunzisoft.keepass.database.element.Attachment
+import com.kunzisoft.keepass.database.element.CustomData
+import com.kunzisoft.keepass.database.element.DateInstant
+import com.kunzisoft.keepass.database.element.database.DatabaseKDB
+import com.kunzisoft.keepass.database.element.database.DatabaseKDBX
+import com.kunzisoft.keepass.database.element.entry.EntryKDB
+import com.kunzisoft.keepass.database.element.entry.EntryKDBX
+import com.kunzisoft.keepass.database.element.group.GroupKDB
+import com.kunzisoft.keepass.database.element.group.GroupKDBX
+import com.kunzisoft.keepass.database.element.node.NodeId
+import com.kunzisoft.keepass.database.element.node.NodeIdUUID
+import com.kunzisoft.keepass.utils.readAllBytes
+import java.io.IOException
+import java.util.*
+
+class DatabaseKDBXMerger(private var database: DatabaseKDBX) {
+
+    var isRAMSufficient: (memoryWanted: Long) -> Boolean = {true}
+
+    /**
+     * Merge a KDB database in a KDBX database, by default all data are copied from the KDB
+     */
+    fun merge(databaseToMerge: DatabaseKDB) {
+        // TODO Test KDB merge
+        val rootGroup = database.rootGroup
+        val rootGroupId = rootGroup?.nodeId
+        val rootGroupToMerge = databaseToMerge.rootGroup
+        val rootGroupIdToMerge = rootGroupToMerge?.nodeId
+
+        if (rootGroupId == null || rootGroupIdToMerge == null) {
+            throw IOException("Database is not open")
+        }
+
+        // Merge children
+        rootGroupToMerge.doForEachChild(
+            object : NodeHandler<EntryKDB>() {
+                override fun operate(node: EntryKDB): Boolean {
+                    mergeEntry(rootGroup.nodeId, node, databaseToMerge)
+                    return true
+                }
+            },
+            object : NodeHandler<GroupKDB>() {
+                override fun operate(node: GroupKDB): Boolean {
+                    mergeGroup(rootGroup.nodeId, node, databaseToMerge)
+                    return true
+                }
+            }
+        )
+    }
+
+    /**
+     * Utility method to transform KDB id nodes in KDBX id nodes
+     */
+    private fun getNodeIdUUIDFrom(seed: NodeId<UUID>, intId: NodeId<Int>): NodeId<UUID> {
+        val seedUUID = seed.id
+        val idInt = intId.id
+        return NodeIdUUID(UUID(seedUUID.mostSignificantBits, seedUUID.leastSignificantBits + idInt))
+    }
+
+    /**
+     * Utility method to merge a KDB entry
+     */
+    private fun mergeEntry(seed: NodeId<UUID>, nodeToMerge: EntryKDB, databaseToMerge: DatabaseKDB) {
+        val entryId: NodeId<UUID> = nodeToMerge.nodeId
+        val entry = database.getEntryById(entryId)
+
+        databaseToMerge.getEntryById(entryId)?.let { srcEntryToMerge ->
+            // Retrieve parent in current database
+            var parentEntryToMerge: GroupKDBX? = null
+            srcEntryToMerge.parent?.nodeId?.let {
+                val parentGroupIdToMerge = getNodeIdUUIDFrom(seed, it)
+                parentEntryToMerge = database.getGroupById(parentGroupIdToMerge)
+            }
+            val entryToMerge = EntryKDBX().apply {
+                this.nodeId = srcEntryToMerge.nodeId
+                this.icon = srcEntryToMerge.icon
+                this.creationTime = DateInstant(srcEntryToMerge.creationTime)
+                this.lastModificationTime = DateInstant(srcEntryToMerge.lastModificationTime)
+                this.lastAccessTime = DateInstant(srcEntryToMerge.lastAccessTime)
+                this.expiryTime = DateInstant(srcEntryToMerge.expiryTime)
+                this.expires = srcEntryToMerge.expires
+                this.title = srcEntryToMerge.title
+                this.username = srcEntryToMerge.username
+                this.password = srcEntryToMerge.password
+                this.url = srcEntryToMerge.url
+                this.notes = srcEntryToMerge.notes
+                // TODO attachment
+            }
+            if (entry != null) {
+                entry.updateWith(entryToMerge, false)
+            } else if (parentEntryToMerge != null) {
+                database.addEntryTo(entryToMerge, parentEntryToMerge)
+            }
+        }
+    }
+
+    /**
+     * Utility method to merge a KDB group
+     */
+    private fun mergeGroup(seed: NodeId<UUID>, nodeToMerge: GroupKDB, databaseToMerge: DatabaseKDB) {
+        val groupId: NodeId<Int> = nodeToMerge.nodeId
+        val group = database.getGroupById(getNodeIdUUIDFrom(seed, groupId))
+
+        databaseToMerge.getGroupById(groupId)?.let { srcGroupToMerge ->
+            // Retrieve parent in current database
+            var parentGroupToMerge: GroupKDBX? = null
+            srcGroupToMerge.parent?.nodeId?.let {
+                val parentGroupIdToMerge = getNodeIdUUIDFrom(seed, it)
+                parentGroupToMerge = database.getGroupById(parentGroupIdToMerge)
+            }
+            val groupToMerge = GroupKDBX().apply {
+                this.nodeId = getNodeIdUUIDFrom(seed, srcGroupToMerge.nodeId)
+                this.icon = srcGroupToMerge.icon
+                this.creationTime = DateInstant(srcGroupToMerge.creationTime)
+                this.lastModificationTime = DateInstant(srcGroupToMerge.lastModificationTime)
+                this.lastAccessTime = DateInstant(srcGroupToMerge.lastAccessTime)
+                this.expiryTime = DateInstant(srcGroupToMerge.expiryTime)
+                this.expires = srcGroupToMerge.expires
+                this.title = srcGroupToMerge.title
+            }
+            if (group != null) {
+                group.updateWith(groupToMerge, false)
+            } else if (parentGroupToMerge != null) {
+                database.addGroupTo(groupToMerge, parentGroupToMerge)
+            }
+        }
+    }
+
+    /**
+     * Merge a KDB> database in a KDBX database,
+     * Try to take into account the modification date of each element
+     * To make a merge as accurate as possible
+     */
+    fun merge(databaseToMerge: DatabaseKDBX) {
+
+        // Merge settings
+        if (database.nameChanged.date.before(databaseToMerge.nameChanged.date)) {
+            database.name = databaseToMerge.name
+            database.nameChanged = databaseToMerge.nameChanged
+        }
+        if (database.descriptionChanged.date.before(databaseToMerge.descriptionChanged.date)) {
+            database.description = databaseToMerge.description
+            database.descriptionChanged = databaseToMerge.descriptionChanged
+        }
+        if (database.defaultUserNameChanged.date.before(databaseToMerge.defaultUserNameChanged.date)) {
+            database.defaultUserName = databaseToMerge.defaultUserName
+            database.defaultUserNameChanged = databaseToMerge.defaultUserNameChanged
+        }
+        if (database.keyLastChanged.date.before(databaseToMerge.keyLastChanged.date)) {
+            database.keyChangeRecDays = databaseToMerge.keyChangeRecDays
+            database.keyChangeForceDays = databaseToMerge.keyChangeForceDays
+            database.isKeyChangeForceOnce = databaseToMerge.isKeyChangeForceOnce
+            database.keyLastChanged = databaseToMerge.keyLastChanged
+        }
+        if (database.recycleBinChanged.date.before(databaseToMerge.recycleBinChanged.date)) {
+            database.isRecycleBinEnabled = databaseToMerge.isRecycleBinEnabled
+            database.recycleBinUUID = databaseToMerge.recycleBinUUID
+            database.recycleBinChanged = databaseToMerge.recycleBinChanged
+        }
+        if (database.entryTemplatesGroupChanged.date.before(databaseToMerge.entryTemplatesGroupChanged.date)) {
+            database.entryTemplatesGroup = databaseToMerge.entryTemplatesGroup
+            database.entryTemplatesGroupChanged = databaseToMerge.entryTemplatesGroupChanged
+        }
+        if (database.settingsChanged.date.before(databaseToMerge.settingsChanged.date)) {
+            database.color = databaseToMerge.color
+            database.compressionAlgorithm = databaseToMerge.compressionAlgorithm
+            database.historyMaxItems = databaseToMerge.historyMaxItems
+            database.historyMaxSize = databaseToMerge.historyMaxSize
+            database.encryptionAlgorithm = databaseToMerge.encryptionAlgorithm
+            database.kdfEngine = databaseToMerge.kdfEngine
+            database.numberKeyEncryptionRounds = databaseToMerge.numberKeyEncryptionRounds
+            database.memoryUsage = databaseToMerge.memoryUsage
+            database.parallelism = databaseToMerge.parallelism
+            database.settingsChanged = databaseToMerge.settingsChanged
+        }
+
+        val rootGroup = database.rootGroup
+        val rootGroupId = rootGroup?.nodeId
+        val rootGroupToMerge = databaseToMerge.rootGroup
+        val rootGroupIdToMerge = rootGroupToMerge?.nodeId
+
+        if (rootGroupId == null || rootGroupIdToMerge == null) {
+            throw IOException("Database is not open")
+        }
+
+        // UUID of the root group to merge is unknown
+        if (database.getGroupById(rootGroupIdToMerge) == null) {
+            // Change it to copy children database root
+            databaseToMerge.removeGroupIndex(rootGroupToMerge)
+            rootGroupToMerge.nodeId = rootGroupId
+            databaseToMerge.addGroupIndex(rootGroupToMerge)
+        }
+
+        // Merge root group
+        if (rootGroup.lastModificationTime.date
+                .before(rootGroupToMerge.lastModificationTime.date)) {
+            rootGroup.updateWith(rootGroupToMerge, updateParents = false)
+        }
+        // Merge children
+        rootGroupToMerge.doForEachChild(
+            object : NodeHandler<EntryKDBX>() {
+                override fun operate(node: EntryKDBX): Boolean {
+                    mergeEntry(node, databaseToMerge)
+                    return true
+                }
+            },
+            object : NodeHandler<GroupKDBX>() {
+                override fun operate(node: GroupKDBX): Boolean {
+                    mergeGroup(node, databaseToMerge)
+                    return true
+                }
+            }
+        )
+
+        // Merge custom data in database header
+        mergeCustomData(database.customData, databaseToMerge.customData)
+
+        // Merge icons
+        databaseToMerge.iconsManager.doForEachCustomIcon { iconImageCustom, binaryData ->
+            val customIconUuid = iconImageCustom.uuid
+            // If custom icon not present, add it
+            val customIcon = database.iconsManager.getIcon(customIconUuid)
+            if (customIcon == null) {
+                database.addCustomIcon(
+                    customIconUuid,
+                    iconImageCustom.name,
+                    iconImageCustom.lastModificationTime,
+                    false
+                ) { _, newBinaryData ->
+                    binaryData.getInputDataStream(databaseToMerge.binaryCache).use { inputStream ->
+                        newBinaryData?.getOutputDataStream(database.binaryCache).use { outputStream ->
+                            inputStream.readAllBytes { buffer ->
+                                outputStream?.write(buffer)
+                            }
+                        }
+                    }
+                }
+            } else {
+                val customIconModification = customIcon.lastModificationTime
+                val customIconToMerge = databaseToMerge.iconsManager.getIcon(customIconUuid)
+                val customIconModificationToMerge = customIconToMerge?.lastModificationTime
+                if (customIconModification != null && customIconModificationToMerge != null) {
+                    if (customIconModification.date.before(customIconModificationToMerge.date)) {
+                        customIcon.updateWith(customIconToMerge)
+                    }
+                } else if (customIconModificationToMerge != null) {
+                    customIcon.updateWith(customIconToMerge)
+                }
+            }
+        }
+
+        // Manage deleted objects
+        databaseToMerge.deletedObjects.forEach { deletedObject ->
+            val deletedObjectId = deletedObject.uuid
+            val databaseEntry = database.getEntryById(deletedObjectId)
+            val databaseGroup = database.getGroupById(deletedObjectId)
+            val databaseIcon = database.iconsManager.getIcon(deletedObjectId)
+            val databaseIconModificationTime = databaseIcon?.lastModificationTime
+            if (databaseEntry != null
+                && deletedObject.deletionTime.date
+                    .after(databaseEntry.lastModificationTime.date)) {
+                database.removeEntryFrom(databaseEntry, databaseEntry.parent)
+            }
+            if (databaseGroup != null
+                && deletedObject.deletionTime.date
+                    .after(databaseGroup.lastModificationTime.date)) {
+                database.removeGroupFrom(databaseGroup, databaseGroup.parent)
+            }
+            if (databaseIcon != null
+                && (
+                    databaseIconModificationTime == null
+                    || (deletedObject.deletionTime.date.after(databaseIconModificationTime.date))
+                    )
+            ) {
+                database.removeCustomIcon(deletedObjectId)
+            }
+            // Attachments are removed and optimized during the database save
+        }
+    }
+
+    /**
+     * Merge [customDataToMerge] in [customData]
+     */
+    private fun mergeCustomData(customData: CustomData, customDataToMerge: CustomData) {
+        customDataToMerge.doForEachItems { customDataItemToMerge ->
+            val customDataItem = customData.get(customDataItemToMerge.key)
+            if (customDataItem == null) {
+                customData.put(customDataItemToMerge)
+            } else {
+                val customDataItemModification = customDataItem.lastModificationTime
+                val customDataItemToMergeModification = customDataItemToMerge.lastModificationTime
+                if (customDataItemModification != null && customDataItemToMergeModification != null) {
+                    if (customDataItemModification.date
+                            .before(customDataItemToMergeModification.date)) {
+                        customData.put(customDataItemToMerge)
+                    }
+                } else {
+                    customData.put(customDataItemToMerge)
+                }
+            }
+        }
+    }
+
+    /**
+     * Utility method to merge a KDBX entry
+     */
+    private fun mergeEntry(nodeToMerge: EntryKDBX, databaseToMerge: DatabaseKDBX) {
+        val entryId = nodeToMerge.nodeId
+        val entry = database.getEntryById(entryId)
+        val deletedObject = database.getDeletedObject(entryId)
+
+        databaseToMerge.getEntryById(entryId)?.let { srcEntryToMerge ->
+            // Retrieve parent in current database
+            var parentEntryToMerge: GroupKDBX? = null
+            srcEntryToMerge.parent?.nodeId?.let {
+                parentEntryToMerge = database.getGroupById(it)
+            }
+            val entryToMerge = EntryKDBX().apply {
+                updateWith(srcEntryToMerge, copyHistory = true, updateParents = false)
+            }
+
+            // Copy attachments in main pool
+            val newAttachments = mutableListOf<Attachment>()
+            entryToMerge.getAttachments(databaseToMerge.attachmentPool).forEach { attachment ->
+                val binarySize = attachment.binaryData.getSize()
+                val binaryData = database.buildNewBinaryAttachment(
+                    isRAMSufficient.invoke(binarySize),
+                    attachment.binaryData.isCompressed,
+                    attachment.binaryData.isProtected
+                )
+                attachment.binaryData.getInputDataStream(databaseToMerge.binaryCache).use { inputStream ->
+                    binaryData.getOutputDataStream(database.binaryCache).use { outputStream ->
+                        inputStream.readAllBytes { buffer ->
+                            outputStream.write(buffer)
+                        }
+                    }
+                }
+                newAttachments.add(Attachment(attachment.name, binaryData))
+            }
+            entryToMerge.removeAttachments()
+            newAttachments.forEach { newAttachment ->
+                entryToMerge.putAttachment(newAttachment, database.attachmentPool)
+            }
+
+            if (entry == null) {
+                // If it's a deleted object, but another instance was updated
+                // If entry parent to add exists and in current database
+                if ((deletedObject == null
+                    || deletedObject.deletionTime.date
+                        .before(entryToMerge.lastModificationTime.date))
+                    && parentEntryToMerge != null) {
+                    database.addEntryTo(entryToMerge, parentEntryToMerge)
+                }
+            } else {
+                // Merge independently custom data
+                mergeCustomData(entry.customData, entryToMerge.customData)
+                // Merge by modification time
+                if (entry.lastModificationTime.date
+                        .before(entryToMerge.lastModificationTime.date)
+                ) {
+                    addHistory(entry, entryToMerge)
+                    if (parentEntryToMerge == entry.parent) {
+                        entry.updateWith(entryToMerge, copyHistory = true, updateParents = false)
+                    } else {
+                        // Update entry with databaseEntryToMerge and merge history
+                        database.removeEntryFrom(entry, entry.parent)
+                        if (parentEntryToMerge != null) {
+                            database.addEntryTo(entryToMerge, parentEntryToMerge)
+                        }
+                    }
+                } else if (entry.lastModificationTime.date
+                        .after(entryToMerge.lastModificationTime.date)
+                ) {
+                    addHistory(entryToMerge, entry)
+                }
+            }
+        }
+    }
+
+    /**
+     * Utility method to merge an history from an [entryA] to an [entryB],
+     * [entryB] is modified
+     */
+    private fun addHistory(entryA: EntryKDBX, entryB: EntryKDBX) {
+        // Keep entry as history if already not present
+        entryA.history.forEach { history ->
+            // If history not present
+            if (!entryB.history.any {
+                    it.lastModificationTime == history.lastModificationTime
+                }) {
+                entryB.addEntryToHistory(history)
+            }
+        }
+        // Last entry not present
+        if (entryB.history.find {
+                it.lastModificationTime == entryA.lastModificationTime
+            } == null) {
+            val history = EntryKDBX().apply {
+                updateWith(entryA, copyHistory = false, updateParents = false)
+                parent = null
+            }
+            entryB.addEntryToHistory(history)
+        }
+    }
+
+    /**
+     * Utility method to merge a KDBX group
+     */
+    private fun mergeGroup(nodeToMerge: GroupKDBX, databaseToMerge: DatabaseKDBX) {
+        val groupId = nodeToMerge.nodeId
+        val group = database.getGroupById(groupId)
+        val deletedObject = database.getDeletedObject(groupId)
+
+        databaseToMerge.getGroupById(groupId)?.let { srcGroupToMerge ->
+            // Retrieve parent in current database
+            var parentGroupToMerge: GroupKDBX? = null
+            srcGroupToMerge.parent?.nodeId?.let {
+                parentGroupToMerge = database.getGroupById(it)
+            }
+            val groupToMerge = GroupKDBX().apply {
+                updateWith(srcGroupToMerge, updateParents = false)
+            }
+
+            if (group == null) {
+                // If group parent to add exists and in current database
+                if ((deletedObject == null
+                    || deletedObject.deletionTime.date
+                        .before(groupToMerge.lastModificationTime.date))
+                    && parentGroupToMerge != null) {
+                    database.addGroupTo(groupToMerge, parentGroupToMerge)
+                }
+            } else {
+                // Merge independently custom data
+                mergeCustomData(group.customData, groupToMerge.customData)
+                // Merge by modification time
+                if (group.lastModificationTime.date
+                        .before(groupToMerge.lastModificationTime.date)
+                ) {
+                    if (parentGroupToMerge == group.parent) {
+                        group.updateWith(groupToMerge, false)
+                    } else {
+                        database.removeGroupFrom(group, group.parent)
+                        if (parentGroupToMerge != null) {
+                            database.addGroupTo(groupToMerge, parentGroupToMerge)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/kunzisoft/keepass/education/GroupActivityEducation.kt

@@ -119,7 +119,7 @@ class GroupActivityEducation(activity: Activity)
                         .outerCircleColorInt(getCircleColor())
                         .outerCircleAlpha(getCircleAlpha())
                         .textColorInt(getTextColor())
-                        .tintTarget(true)
+                        .tintTarget(false)
                         .cancelable(true),
                 object : TapTargetView.Listener() {
                     override fun onTargetClick(view: TapTargetView) {

app/src/main/java/com/kunzisoft/keepass/education/PasswordActivityEducation.kt

@@ -38,9 +38,9 @@ class PasswordActivityEducation(activity: Activity)
                         activity.getString(R.string.education_unlock_summary))
                         .outerCircleColorInt(getCircleColor())
                         .outerCircleAlpha(getCircleAlpha())
-                        .icon(ContextCompat.getDrawable(activity, R.mipmap.ic_launcher_round))
+                        .icon(ContextCompat.getDrawable(activity, R.drawable.ic_lock_open_white_24dp))
                         .textColorInt(getTextColor())
-                        .tintTarget(false)
+                        .tintTarget(true)
                         .cancelable(true),
                 object : TapTargetView.Listener() {
                     override fun onTargetClick(view: TapTargetView) {

app/src/main/java/com/kunzisoft/keepass/magikeyboard/Keyboard.java

@@ -0,0 +1,902 @@
+/*
+ * Copyright (C) 2008-2009 Google Inc. 2022 J-Jamet
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.kunzisoft.keepass.magikeyboard;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.content.res.TypedArray;
+import android.content.res.XmlResourceParser;
+import android.graphics.drawable.Drawable;
+import android.text.TextUtils;
+import android.util.DisplayMetrics;
+import android.util.Log;
+import android.util.TypedValue;
+import android.util.Xml;
+
+import com.kunzisoft.keepass.R;
+
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.StringTokenizer;
+
+
+/**
+ * Loads an XML description of a keyboard and stores the attributes of the keys. A keyboard
+ * consists of rows of keys.
+ * <p>The layout file for a keyboard contains XML that looks like the following snippet:</p>
+ * <pre>
+ * &lt;Keyboard
+ *         android:keyWidth="%10p"
+ *         android:keyHeight="50px"
+ *         android:horizontalGap="2px"
+ *         android:verticalGap="2px" &gt;
+ *     &lt;Row android:keyWidth="32px" &gt;
+ *         &lt;Key android:keyLabel="A" /&gt;
+ *         ...
+ *     &lt;/Row&gt;
+ *     ...
+ * &lt;/Keyboard&gt;
+ * </pre>
+ *
+ * ref android.R.styleable#Keyboard_keyWidth
+ * ref android.R.styleable#Keyboard_keyHeight
+ * ref android.R.styleable#Keyboard_horizontalGap
+ * ref android.R.styleable#Keyboard_verticalGap
+ */
+public class Keyboard {
+
+    static final String TAG = "Keyboard";
+
+    // Keyboard XML Tags
+    private static final String TAG_KEYBOARD = "Keyboard";
+    private static final String TAG_ROW = "Row";
+    private static final String TAG_KEY = "Key";
+
+    public static final int EDGE_LEFT = 0x01;
+    public static final int EDGE_RIGHT = 0x02;
+    public static final int EDGE_TOP = 0x04;
+    public static final int EDGE_BOTTOM = 0x08;
+
+    public static final int KEYCODE_SHIFT = -1;
+    public static final int KEYCODE_MODE_CHANGE = -2;
+    public static final int KEYCODE_CANCEL = -3;
+    public static final int KEYCODE_DONE = -4;
+    public static final int KEYCODE_DELETE = -5;
+    public static final int KEYCODE_ALT = -6;
+
+    /**
+     * Horizontal gap default for all rows
+     */
+    private int mDefaultHorizontalGap;
+
+    /**
+     * Default key width
+     */
+    private int mDefaultWidth;
+
+    /**
+     * Default key height
+     */
+    private int mDefaultHeight;
+
+    /**
+     * Default gap between rows
+     */
+    private int mDefaultVerticalGap;
+
+    /**
+     * Is the keyboard in the shifted state
+     */
+    private boolean mShifted;
+
+    /**
+     * Key instance for the shift key, if present
+     */
+    private Key[] mShiftKeys = {null, null};
+
+    /**
+     * Key index for the shift key, if present
+     */
+    private int[] mShiftKeyIndices = {-1, -1};
+
+    /**
+     * Total height of the keyboard, including the padding and keys
+     */
+    private int mTotalHeight;
+
+    /**
+     * Total width of the keyboard, including left side gaps and keys, but not any gaps on the
+     * right side.
+     */
+    private int mTotalWidth;
+
+    /**
+     * List of keys in this keyboard
+     */
+    private List<Key> mKeys;
+
+    /**
+     * List of modifier keys such as Shift & Alt, if any
+     */
+    private List<Key> mModifierKeys;
+
+    /**
+     * Width of the screen available to fit the keyboard
+     */
+    private int mDisplayWidth;
+
+    /**
+     * Height of the screen
+     */
+    private int mDisplayHeight;
+
+    /**
+     * Keyboard mode, or zero, if none.
+     */
+    private int mKeyboardMode;
+
+    // Variables for pre-computing nearest keys.
+
+    private static final int GRID_WIDTH = 10;
+    private static final int GRID_HEIGHT = 5;
+    private static final int GRID_SIZE = GRID_WIDTH * GRID_HEIGHT;
+    private int mCellWidth;
+    private int mCellHeight;
+    private int[][] mGridNeighbors;
+    private int mProximityThreshold;
+    /**
+     * Number of key widths from current touch point to search for nearest keys.
+     */
+    private static float SEARCH_DISTANCE = 1.8f;
+
+    private ArrayList<Row> rows = new ArrayList<>();
+
+    /**
+     * Container for keys in the keyboard. All keys in a row are at the same Y-coordinate.
+     * Some of the key size defaults can be overridden per row from what the {@link Keyboard}
+     * defines.
+     *
+     * ref R.styleable#Keyboard_keyWidth
+     * ref R.styleable#Keyboard_keyHeight
+     * ref R.styleable#Keyboard_horizontalGap
+     * ref R.styleable#Keyboard_verticalGap
+     * ref R.styleable#Keyboard_Row_rowEdgeFlags
+     * ref R.styleable#Keyboard_Row_keyboardMode
+     */
+    public static class Row {
+        /**
+         * Default width of a key in this row.
+         */
+        public int defaultWidth;
+        /**
+         * Default height of a key in this row.
+         */
+        public int defaultHeight;
+        /**
+         * Default horizontal gap between keys in this row.
+         */
+        public int defaultHorizontalGap;
+        /**
+         * Vertical gap following this row.
+         */
+        public int verticalGap;
+
+        ArrayList<Key> mKeys = new ArrayList<>();
+
+        /**
+         * Edge flags for this row of keys. Possible values that can be assigned are
+         * {@link Keyboard#EDGE_TOP EDGE_TOP} and {@link Keyboard#EDGE_BOTTOM EDGE_BOTTOM}
+         */
+        public int rowEdgeFlags;
+
+        /**
+         * The keyboard mode for this row
+         */
+        public int mode;
+
+        private Keyboard parent;
+
+        public Row(Keyboard parent) {
+            this.parent = parent;
+        }
+
+        public Row(Resources res, Keyboard parent, XmlResourceParser parser) {
+            this.parent = parent;
+            TypedArray a = res.obtainAttributes(Xml.asAttributeSet(parser),
+                    R.styleable.Keyboard);
+            defaultWidth = getDimensionOrFraction(a, R.styleable.Keyboard_keyWidth,
+                    parent.mDisplayWidth, parent.mDefaultWidth);
+            defaultHeight = getDimensionOrFraction(a, R.styleable.Keyboard_keyHeight,
+                    parent.mDisplayHeight, parent.mDefaultHeight);
+            defaultHorizontalGap = getDimensionOrFraction(a, R.styleable.Keyboard_horizontalGap,
+                    parent.mDisplayWidth, parent.mDefaultHorizontalGap);
+            verticalGap = getDimensionOrFraction(a, R.styleable.Keyboard_verticalGap,
+                    parent.mDisplayHeight, parent.mDefaultVerticalGap);
+            a = res.obtainAttributes(Xml.asAttributeSet(parser), R.styleable.Keyboard_Row);
+            rowEdgeFlags = a.getInt(R.styleable.Keyboard_Row_rowEdgeFlags, 0);
+            mode = a.getResourceId(R.styleable.Keyboard_Row_keyboardMode, 0);
+            a.recycle();
+        }
+    }
+
+    /**
+     * Class for describing the position and characteristics of a single key in the keyboard.
+     *
+     * ref R.styleable#Keyboard_keyWidth
+     * ref R.styleable#Keyboard_keyHeight
+     * ref R.styleable#Keyboard_horizontalGap
+     * ref R.styleable#Keyboard_Key_codes
+     * ref R.styleable#Keyboard_Key_keyIcon
+     * ref R.styleable#Keyboard_Key_keyLabel
+     * ref R.styleable#Keyboard_Key_iconPreview
+     * ref R.styleable#Keyboard_Key_isSticky
+     * ref R.styleable#Keyboard_Key_isRepeatable
+     * ref R.styleable#Keyboard_Key_isModifier
+     * ref R.styleable#Keyboard_Key_popupKeyboard
+     * ref R.styleable#Keyboard_Key_popupCharacters
+     * ref R.styleable#Keyboard_Key_keyOutputText
+     * ref R.styleable#Keyboard_Key_keyEdgeFlags
+     */
+    public static class Key {
+        /**
+         * All the key codes (unicode or custom code) that this key could generate, zero'th
+         * being the most important.
+         */
+        public int[] codes;
+
+        /**
+         * Label to display
+         */
+        public CharSequence label;
+
+        /**
+         * Icon to display instead of a label. Icon takes precedence over a label
+         */
+        public Drawable icon;
+        /**
+         * Preview version of the icon, for the preview popup
+         */
+        public Drawable iconPreview;
+        /**
+         * Width of the key, not including the gap
+         */
+        public int width;
+        /**
+         * Height of the key, not including the gap
+         */
+        public int height;
+        /**
+         * The horizontal gap before this key
+         */
+        public int gap;
+        /**
+         * Whether this key is sticky, i.e., a toggle key
+         */
+        public boolean sticky;
+        /**
+         * X coordinate of the key in the keyboard layout
+         */
+        public int x;
+        /**
+         * Y coordinate of the key in the keyboard layout
+         */
+        public int y;
+        /**
+         * The current pressed state of this key
+         */
+        public boolean pressed;
+        /**
+         * If this is a sticky key, is it on?
+         */
+        public boolean on;
+        /**
+         * Text to output when pressed. This can be multiple characters, like ".com"
+         */
+        public CharSequence text;
+        /**
+         * Popup characters
+         */
+        public CharSequence popupCharacters;
+
+        /**
+         * Flags that specify the anchoring to edges of the keyboard for detecting touch events
+         * that are just out of the boundary of the key. This is a bit mask of
+         * {@link Keyboard#EDGE_LEFT}, {@link Keyboard#EDGE_RIGHT}, {@link Keyboard#EDGE_TOP} and
+         * {@link Keyboard#EDGE_BOTTOM}.
+         */
+        public int edgeFlags;
+        /**
+         * Whether this is a modifier key, such as Shift or Alt
+         */
+        public boolean modifier;
+        /**
+         * The keyboard that this key belongs to
+         */
+        private Keyboard keyboard;
+        /**
+         * If this key pops up a mini keyboard, this is the resource id for the XML layout for that
+         * keyboard.
+         */
+        public int popupResId;
+        /**
+         * Whether this key repeats itself when held down
+         */
+        public boolean repeatable;
+
+
+        private final static int[] KEY_STATE_NORMAL_ON = {
+                android.R.attr.state_checkable,
+                android.R.attr.state_checked
+        };
+
+        private final static int[] KEY_STATE_PRESSED_ON = {
+                android.R.attr.state_pressed,
+                android.R.attr.state_checkable,
+                android.R.attr.state_checked
+        };
+
+        private final static int[] KEY_STATE_NORMAL_OFF = {
+                android.R.attr.state_checkable
+        };
+
+        private final static int[] KEY_STATE_PRESSED_OFF = {
+                android.R.attr.state_pressed,
+                android.R.attr.state_checkable
+        };
+
+        private final static int[] KEY_STATE_NORMAL = {
+        };
+
+        private final static int[] KEY_STATE_PRESSED = {
+                android.R.attr.state_pressed
+        };
+
+        /**
+         * Create an empty key with no attributes.
+         */
+        public Key(Row parent) {
+            keyboard = parent.parent;
+            height = parent.defaultHeight;
+            width = parent.defaultWidth;
+            gap = parent.defaultHorizontalGap;
+            edgeFlags = parent.rowEdgeFlags;
+        }
+
+        /**
+         * Create a key with the given top-left coordinate and extract its attributes from
+         * the XML parser.
+         *
+         * @param res    resources associated with the caller's context
+         * @param parent the row that this key belongs to. The row must already be attached to
+         *               a {@link Keyboard}.
+         * @param x      the x coordinate of the top-left
+         * @param y      the y coordinate of the top-left
+         * @param parser the XML parser containing the attributes for this key
+         */
+        public Key(Resources res, Row parent, int x, int y, XmlResourceParser parser) {
+            this(parent);
+
+            this.x = x;
+            this.y = y;
+
+            TypedArray a = res.obtainAttributes(Xml.asAttributeSet(parser), R.styleable.Keyboard);
+
+            width = getDimensionOrFraction(a, R.styleable.Keyboard_keyWidth,
+                    keyboard.mDisplayWidth, parent.defaultWidth);
+            height = getDimensionOrFraction(a, R.styleable.Keyboard_keyHeight,
+                    keyboard.mDisplayHeight, parent.defaultHeight);
+            gap = getDimensionOrFraction(a, R.styleable.Keyboard_horizontalGap,
+                    keyboard.mDisplayWidth, parent.defaultHorizontalGap);
+            a.recycle();
+            a = res.obtainAttributes(Xml.asAttributeSet(parser), R.styleable.Keyboard_Key);
+            this.x += gap;
+            TypedValue codesValue = new TypedValue();
+            a.getValue(R.styleable.Keyboard_Key_codes, codesValue);
+            if (codesValue.type == TypedValue.TYPE_INT_DEC
+                    || codesValue.type == TypedValue.TYPE_INT_HEX) {
+                codes = new int[]{codesValue.data};
+            } else if (codesValue.type == TypedValue.TYPE_STRING) {
+                codes = parseCSV(codesValue.string.toString());
+            }
+
+            iconPreview = a.getDrawable(R.styleable.Keyboard_Key_iconPreview);
+            if (iconPreview != null) {
+                iconPreview.setBounds(0, 0, iconPreview.getIntrinsicWidth(),
+                        iconPreview.getIntrinsicHeight());
+            }
+            popupCharacters = a.getText(R.styleable.Keyboard_Key_popupCharacters);
+            popupResId = a.getResourceId(R.styleable.Keyboard_Key_popupKeyboard, 0);
+            repeatable = a.getBoolean(R.styleable.Keyboard_Key_isRepeatable, false);
+            modifier = a.getBoolean(R.styleable.Keyboard_Key_isModifier, false);
+            sticky = a.getBoolean(R.styleable.Keyboard_Key_isSticky, false);
+            edgeFlags = a.getInt(R.styleable.Keyboard_Key_keyEdgeFlags, 0);
+            edgeFlags |= parent.rowEdgeFlags;
+
+            icon = a.getDrawable(R.styleable.Keyboard_Key_keyIcon);
+            if (icon != null) {
+                icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
+            }
+            label = a.getText(R.styleable.Keyboard_Key_keyLabel);
+            text = a.getText(R.styleable.Keyboard_Key_keyOutputText);
+
+            if (codes == null && !TextUtils.isEmpty(label)) {
+                codes = new int[]{label.charAt(0)};
+            }
+            a.recycle();
+        }
+
+        /**
+         * Informs the key that it has been pressed, in case it needs to change its appearance or
+         * state.
+         *
+         * @see #onReleased(boolean)
+         */
+        public void onPressed() {
+            pressed = !pressed;
+        }
+
+        /**
+         * Changes the pressed state of the key.
+         *
+         * <p>Toggled state of the key will be flipped when all the following conditions are
+         * fulfilled:</p>
+         *
+         * <ul>
+         *     <li>This is a sticky key, that is, {@link #sticky} is {@code true}.
+         *     <li>The parameter {@code inside} is {@code true}.
+         *     <li>{@link android.os.Build.VERSION#SDK_INT} is greater than
+         *         {@link android.os.Build.VERSION_CODES#LOLLIPOP_MR1}.
+         * </ul>
+         *
+         * @param inside whether the finger was released inside the key. Works only on Android M and
+         *               later. See the method document for details.
+         * @see #onPressed()
+         */
+        public void onReleased(boolean inside) {
+            pressed = !pressed;
+            if (sticky && inside) {
+                on = !on;
+            }
+        }
+
+        int[] parseCSV(String value) {
+            int count = 0;
+            int lastIndex = 0;
+            if (value.length() > 0) {
+                count++;
+                while ((lastIndex = value.indexOf(",", lastIndex + 1)) > 0) {
+                    count++;
+                }
+            }
+            int[] values = new int[count];
+            count = 0;
+            StringTokenizer st = new StringTokenizer(value, ",");
+            while (st.hasMoreTokens()) {
+                try {
+                    values[count++] = Integer.parseInt(st.nextToken());
+                } catch (NumberFormatException nfe) {
+                    Log.e(TAG, "Error parsing keycodes " + value);
+                }
+            }
+            return values;
+        }
+
+        /**
+         * Detects if a point falls inside this key.
+         *
+         * @param x the x-coordinate of the point
+         * @param y the y-coordinate of the point
+         * @return whether or not the point falls inside the key. If the key is attached to an edge,
+         * it will assume that all points between the key and the edge are considered to be inside
+         * the key.
+         */
+        public boolean isInside(int x, int y) {
+            boolean leftEdge = (edgeFlags & EDGE_LEFT) > 0;
+            boolean rightEdge = (edgeFlags & EDGE_RIGHT) > 0;
+            boolean topEdge = (edgeFlags & EDGE_TOP) > 0;
+            boolean bottomEdge = (edgeFlags & EDGE_BOTTOM) > 0;
+            return (x >= this.x || (leftEdge && x <= this.x + this.width))
+                    && (x < this.x + this.width || (rightEdge && x >= this.x))
+                    && (y >= this.y || (topEdge && y <= this.y + this.height))
+                    && (y < this.y + this.height || (bottomEdge && y >= this.y));
+        }
+
+        /**
+         * Returns the square of the distance between the center of the key and the given point.
+         *
+         * @param x the x-coordinate of the point
+         * @param y the y-coordinate of the point
+         * @return the square of the distance of the point from the center of the key
+         */
+        public int squaredDistanceFrom(int x, int y) {
+            int xDist = this.x + width / 2 - x;
+            int yDist = this.y + height / 2 - y;
+            return xDist * xDist + yDist * yDist;
+        }
+
+        /**
+         * Returns the drawable state for the key, based on the current state and type of the key.
+         *
+         * @return the drawable state of the key.
+         * @see android.graphics.drawable.StateListDrawable#setState(int[])
+         */
+        public int[] getCurrentDrawableState() {
+            int[] states = KEY_STATE_NORMAL;
+
+            if (on) {
+                if (pressed) {
+                    states = KEY_STATE_PRESSED_ON;
+                } else {
+                    states = KEY_STATE_NORMAL_ON;
+                }
+            } else {
+                if (sticky) {
+                    if (pressed) {
+                        states = KEY_STATE_PRESSED_OFF;
+                    } else {
+                        states = KEY_STATE_NORMAL_OFF;
+                    }
+                } else {
+                    if (pressed) {
+                        states = KEY_STATE_PRESSED;
+                    }
+                }
+            }
+            return states;
+        }
+    }
+
+    /**
+     * Creates a keyboard from the given xml key layout file.
+     *
+     * @param context        the application or service context
+     * @param xmlLayoutResId the resource file that contains the keyboard layout and keys.
+     */
+    public Keyboard(Context context, int xmlLayoutResId) {
+        this(context, xmlLayoutResId, 0);
+    }
+
+    /**
+     * Creates a keyboard from the given xml key layout file. Weeds out rows
+     * that have a keyboard mode defined but don't match the specified mode.
+     *
+     * @param context        the application or service context
+     * @param xmlLayoutResId the resource file that contains the keyboard layout and keys.
+     * @param modeId         keyboard mode identifier
+     * @param width          sets width of keyboard
+     * @param height         sets height of keyboard
+     */
+    public Keyboard(Context context, int xmlLayoutResId, int modeId, int width, int height) {
+        mDisplayWidth = width;
+        mDisplayHeight = height;
+
+        mDefaultHorizontalGap = 0;
+        mDefaultWidth = mDisplayWidth / 10;
+        mDefaultVerticalGap = 0;
+        mDefaultHeight = mDefaultWidth;
+        mKeys = new ArrayList<>();
+        mModifierKeys = new ArrayList<>();
+        mKeyboardMode = modeId;
+        loadKeyboard(context, context.getResources().getXml(xmlLayoutResId));
+    }
+
+    /**
+     * Creates a keyboard from the given xml key layout file. Weeds out rows
+     * that have a keyboard mode defined but don't match the specified mode.
+     *
+     * @param context        the application or service context
+     * @param xmlLayoutResId the resource file that contains the keyboard layout and keys.
+     * @param modeId         keyboard mode identifier
+     */
+    public Keyboard(Context context, int xmlLayoutResId, int modeId) {
+        DisplayMetrics dm = context.getResources().getDisplayMetrics();
+        mDisplayWidth = dm.widthPixels;
+        mDisplayHeight = dm.heightPixels;
+        //Log.v(TAG, "keyboard's display metrics:" + dm);
+
+        mDefaultHorizontalGap = 0;
+        mDefaultWidth = mDisplayWidth / 10;
+        mDefaultVerticalGap = 0;
+        mDefaultHeight = mDefaultWidth;
+        mKeys = new ArrayList<>();
+        mModifierKeys = new ArrayList<>();
+        mKeyboardMode = modeId;
+        loadKeyboard(context, context.getResources().getXml(xmlLayoutResId));
+    }
+
+    /**
+     * <p>Creates a blank keyboard from the given resource file and populates it with the specified
+     * characters in left-to-right, top-to-bottom fashion, using the specified number of columns.
+     * </p>
+     * <p>If the specified number of columns is -1, then the keyboard will fit as many keys as
+     * possible in each row.</p>
+     *
+     * @param context             the application or service context
+     * @param layoutTemplateResId the layout template file, containing no keys.
+     * @param characters          the list of characters to display on the keyboard. One key will be created
+     *                            for each character.
+     * @param columns             the number of columns of keys to display. If this number is greater than the
+     *                            number of keys that can fit in a row, it will be ignored. If this number is -1, the
+     *                            keyboard will fit as many keys as possible in each row.
+     */
+    public Keyboard(Context context, int layoutTemplateResId,
+                    CharSequence characters, int columns, int horizontalPadding) {
+        this(context, layoutTemplateResId);
+        int x = 0;
+        int y = 0;
+        int column = 0;
+        mTotalWidth = 0;
+
+        Row row = new Row(this);
+        row.defaultHeight = mDefaultHeight;
+        row.defaultWidth = mDefaultWidth;
+        row.defaultHorizontalGap = mDefaultHorizontalGap;
+        row.verticalGap = mDefaultVerticalGap;
+        row.rowEdgeFlags = EDGE_TOP | EDGE_BOTTOM;
+        final int maxColumns = columns == -1 ? Integer.MAX_VALUE : columns;
+        for (int i = 0; i < characters.length(); i++) {
+            char c = characters.charAt(i);
+            if (column >= maxColumns
+                    || x + mDefaultWidth + horizontalPadding > mDisplayWidth) {
+                x = 0;
+                y += mDefaultVerticalGap + mDefaultHeight;
+                column = 0;
+            }
+            final Key key = new Key(row);
+            key.x = x;
+            key.y = y;
+            key.label = String.valueOf(c);
+            key.codes = new int[]{c};
+            column++;
+            x += key.width + key.gap;
+            mKeys.add(key);
+            row.mKeys.add(key);
+            if (x > mTotalWidth) {
+                mTotalWidth = x;
+            }
+        }
+        mTotalHeight = y + mDefaultHeight;
+        rows.add(row);
+    }
+
+    final void resize(int newWidth, int newHeight) {
+        int numRows = rows.size();
+        for (int rowIndex = 0; rowIndex < numRows; ++rowIndex) {
+            Row row = rows.get(rowIndex);
+            int numKeys = row.mKeys.size();
+            int totalGap = 0;
+            int totalWidth = 0;
+            for (int keyIndex = 0; keyIndex < numKeys; ++keyIndex) {
+                Key key = row.mKeys.get(keyIndex);
+                if (keyIndex > 0) {
+                    totalGap += key.gap;
+                }
+                totalWidth += key.width;
+            }
+            if (totalGap + totalWidth > newWidth) {
+                int x = 0;
+                float scaleFactor = (float) (newWidth - totalGap) / totalWidth;
+                for (int keyIndex = 0; keyIndex < numKeys; ++keyIndex) {
+                    Key key = row.mKeys.get(keyIndex);
+                    key.width *= scaleFactor;
+                    key.x = x;
+                    x += key.width + key.gap;
+                }
+            }
+        }
+        mTotalWidth = newWidth;
+    }
+
+    public List<Key> getKeys() {
+        return mKeys;
+    }
+
+    /**
+     * Returns the total height of the keyboard
+     *
+     * @return the total height of the keyboard
+     */
+    public int getHeight() {
+        return mTotalHeight;
+    }
+
+    public int getMinWidth() {
+        return mTotalWidth;
+    }
+
+    public boolean setShifted(boolean shiftState) {
+        for (Key shiftKey : mShiftKeys) {
+            if (shiftKey != null) {
+                shiftKey.on = shiftState;
+            }
+        }
+        if (mShifted != shiftState) {
+            mShifted = shiftState;
+            return true;
+        }
+        return false;
+    }
+
+    public boolean isShifted() {
+        return mShifted;
+    }
+
+    private void computeNearestNeighbors() {
+        // Round-up so we don't have any pixels outside the grid
+        mCellWidth = (getMinWidth() + GRID_WIDTH - 1) / GRID_WIDTH;
+        mCellHeight = (getHeight() + GRID_HEIGHT - 1) / GRID_HEIGHT;
+        mGridNeighbors = new int[GRID_SIZE][];
+        int[] indices = new int[mKeys.size()];
+        final int gridWidth = GRID_WIDTH * mCellWidth;
+        final int gridHeight = GRID_HEIGHT * mCellHeight;
+        for (int x = 0; x < gridWidth; x += mCellWidth) {
+            for (int y = 0; y < gridHeight; y += mCellHeight) {
+                int count = 0;
+                for (int i = 0; i < mKeys.size(); i++) {
+                    final Key key = mKeys.get(i);
+                    if (key.squaredDistanceFrom(x, y) < mProximityThreshold ||
+                            key.squaredDistanceFrom(x + mCellWidth - 1, y) < mProximityThreshold ||
+                            key.squaredDistanceFrom(x + mCellWidth - 1, y + mCellHeight - 1)
+                                    < mProximityThreshold ||
+                            key.squaredDistanceFrom(x, y + mCellHeight - 1) < mProximityThreshold) {
+                        indices[count++] = i;
+                    }
+                }
+                int[] cell = new int[count];
+                System.arraycopy(indices, 0, cell, 0, count);
+                mGridNeighbors[(y / mCellHeight) * GRID_WIDTH + (x / mCellWidth)] = cell;
+            }
+        }
+    }
+
+    /**
+     * Returns the indices of the keys that are closest to the given point.
+     *
+     * @param x the x-coordinate of the point
+     * @param y the y-coordinate of the point
+     * @return the array of integer indices for the nearest keys to the given point. If the given
+     * point is out of range, then an array of size zero is returned.
+     */
+    public int[] getNearestKeys(int x, int y) {
+        if (mGridNeighbors == null) computeNearestNeighbors();
+        if (x >= 0 && x < getMinWidth() && y >= 0 && y < getHeight()) {
+            int index = (y / mCellHeight) * GRID_WIDTH + (x / mCellWidth);
+            if (index < GRID_SIZE) {
+                return mGridNeighbors[index];
+            }
+        }
+        return new int[0];
+    }
+
+    protected Row createRowFromXml(Resources res, XmlResourceParser parser) {
+        return new Row(res, this, parser);
+    }
+
+    protected Key createKeyFromXml(Resources res, Row parent, int x, int y,
+                                            XmlResourceParser parser) {
+        return new Key(res, parent, x, y, parser);
+    }
+
+    private void loadKeyboard(Context context, XmlResourceParser parser) {
+        boolean inKey = false;
+        boolean inRow = false;
+        int x = 0;
+        int y = 0;
+        Key key = null;
+        Row currentRow = null;
+        Resources res = context.getResources();
+        boolean skipRow;
+
+        try {
+            int event;
+            while ((event = parser.next()) != XmlResourceParser.END_DOCUMENT) {
+                if (event == XmlResourceParser.START_TAG) {
+                    String tag = parser.getName();
+                    if (TAG_ROW.equals(tag)) {
+                        inRow = true;
+                        x = 0;
+                        currentRow = createRowFromXml(res, parser);
+                        rows.add(currentRow);
+                        skipRow = currentRow.mode != 0 && currentRow.mode != mKeyboardMode;
+                        if (skipRow) {
+                            skipToEndOfRow(parser);
+                            inRow = false;
+                        }
+                    } else if (TAG_KEY.equals(tag)) {
+                        inKey = true;
+                        key = createKeyFromXml(res, currentRow, x, y, parser);
+                        mKeys.add(key);
+                        if (key.codes[0] == KEYCODE_SHIFT) {
+                            // Find available shift key slot and put this shift key in it
+                            for (int i = 0; i < mShiftKeys.length; i++) {
+                                if (mShiftKeys[i] == null) {
+                                    mShiftKeys[i] = key;
+                                    mShiftKeyIndices[i] = mKeys.size() - 1;
+                                    break;
+                                }
+                            }
+                            mModifierKeys.add(key);
+                        } else if (key.codes[0] == KEYCODE_ALT) {
+                            mModifierKeys.add(key);
+                        }
+                        currentRow.mKeys.add(key);
+                    } else if (TAG_KEYBOARD.equals(tag)) {
+                        parseKeyboardAttributes(res, parser);
+                    }
+                } else if (event == XmlResourceParser.END_TAG) {
+                    if (inKey) {
+                        inKey = false;
+                        x += key.gap + key.width;
+                        if (x > mTotalWidth) {
+                            mTotalWidth = x;
+                        }
+                    } else if (inRow) {
+                        inRow = false;
+                        y += currentRow.verticalGap;
+                        y += currentRow.defaultHeight;
+                    }
+                }
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "Parse error:" + e);
+            e.printStackTrace();
+        }
+        mTotalHeight = y - mDefaultVerticalGap;
+    }
+
+    private void skipToEndOfRow(XmlResourceParser parser)
+            throws XmlPullParserException, IOException {
+        int event;
+        while ((event = parser.next()) != XmlResourceParser.END_DOCUMENT) {
+            if (event == XmlResourceParser.END_TAG
+                    && parser.getName().equals(TAG_ROW)) {
+                break;
+            }
+        }
+    }
+
+    private void parseKeyboardAttributes(Resources res, XmlResourceParser parser) {
+        TypedArray a = res.obtainAttributes(Xml.asAttributeSet(parser), R.styleable.Keyboard);
+
+        mDefaultWidth = getDimensionOrFraction(a, R.styleable.Keyboard_keyWidth,
+                mDisplayWidth, mDisplayWidth / 10);
+        mDefaultHeight = getDimensionOrFraction(a, R.styleable.Keyboard_keyHeight,
+                mDisplayHeight, 50);
+        mDefaultHorizontalGap = getDimensionOrFraction(a, R.styleable.Keyboard_horizontalGap,
+                mDisplayWidth, 0);
+        mDefaultVerticalGap = getDimensionOrFraction(a, R.styleable.Keyboard_verticalGap,
+                mDisplayHeight, 0);
+        mProximityThreshold = (int) (mDefaultWidth * SEARCH_DISTANCE);
+        mProximityThreshold = mProximityThreshold * mProximityThreshold; // Square it for comparison
+        a.recycle();
+    }
+
+    static int getDimensionOrFraction(TypedArray a, int index, int base, int defValue) {
+        TypedValue value = a.peekValue(index);
+        if (value == null) return defValue;
+        if (value.type == TypedValue.TYPE_DIMENSION) {
+            return a.getDimensionPixelOffset(index, defValue);
+        } else if (value.type == TypedValue.TYPE_FRACTION) {
+            // Round it to avoid values like 47.9999 from getting truncated
+            return Math.round(a.getFraction(index, base, base, defValue));
+        }
+        return defValue;
+    }
+}

app/src/main/java/com/kunzisoft/keepass/magikeyboard/MagikeyboardService.kt

@@ -17,15 +17,12 @@
  *  along with KeePassDX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-@file:Suppress("DEPRECATION")
 
 package com.kunzisoft.keepass.magikeyboard
 
 import android.content.Context
 import android.content.Intent
 import android.inputmethodservice.InputMethodService
-import android.inputmethodservice.Keyboard
-import android.inputmethodservice.KeyboardView
 import android.media.AudioManager
 import android.os.Build
 import android.util.Log
@@ -99,7 +96,6 @@ class MagikeyboardService : InputMethodService(), KeyboardView.OnKeyboardActionL
             popupCustomKeys = PopupWindow(context).apply {
                 width = WindowManager.LayoutParams.WRAP_CONTENT
                 height = WindowManager.LayoutParams.WRAP_CONTENT
-                softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
                 inputMethodMode = PopupWindow.INPUT_METHOD_NEEDED
                 contentView = popupFieldsView
             }
@@ -130,8 +126,7 @@ class MagikeyboardService : InputMethodService(), KeyboardView.OnKeyboardActionL
                 removeEntryInfo()
             }
             assignKeyboardView()
-            keyboardView?.setOnKeyboardActionListener(this)
-            keyboardView?.isPreviewEnabled = false
+            keyboardView?.onKeyboardActionListener = this
 
             return rootKeyboardView
         }
@@ -206,6 +201,7 @@ class MagikeyboardService : InputMethodService(), KeyboardView.OnKeyboardActionL
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
                 switchToPreviousInputMethod()
             } else {
+                @Suppress("DEPRECATION")
                 window.window?.let { window ->
                     imeManager?.switchToLastInputMethod(window.attributes.token)
                 }

app/src/main/java/com/kunzisoft/keepass/model/EntryInfo.kt

@@ -38,6 +38,8 @@ class EntryInfo : NodeInfo {
     var url: String = ""
     var notes: String = ""
     var tags: Tags = Tags()
+    var backgroundColor: Int? = null
+    var foregroundColor: Int? = null
     var customFields: MutableList<Field> = mutableListOf()
     var attachments: MutableList<Attachment> = mutableListOf()
     var otpModel: OtpModel? = null
@@ -52,6 +54,10 @@ class EntryInfo : NodeInfo {
         url = parcel.readString() ?: url
         notes = parcel.readString() ?: notes
         tags = parcel.readParcelable(Tags::class.java.classLoader) ?: tags
+        val readBgColor = parcel.readInt()
+        backgroundColor = if (readBgColor == -1) null else readBgColor
+        val readFgColor = parcel.readInt()
+        foregroundColor = if (readFgColor == -1) null else readFgColor
         parcel.readList(customFields, Field::class.java.classLoader)
         parcel.readList(attachments, Attachment::class.java.classLoader)
         otpModel = parcel.readParcelable(OtpModel::class.java.classLoader) ?: otpModel
@@ -70,6 +76,8 @@ class EntryInfo : NodeInfo {
         parcel.writeString(url)
         parcel.writeString(notes)
         parcel.writeParcelable(tags, flags)
+        parcel.writeInt(backgroundColor ?: -1)
+        parcel.writeInt(foregroundColor ?: -1)
         parcel.writeList(customFields)
         parcel.writeList(attachments)
         parcel.writeParcelable(otpModel, flags)
@@ -197,6 +205,8 @@ class EntryInfo : NodeInfo {
         if (url != other.url) return false
         if (notes != other.notes) return false
         if (tags != other.tags) return false
+        if (backgroundColor != other.backgroundColor) return false
+        if (foregroundColor != other.foregroundColor) return false
         if (customFields != other.customFields) return false
         if (attachments != other.attachments) return false
         if (otpModel != other.otpModel) return false
@@ -213,6 +223,8 @@ class EntryInfo : NodeInfo {
         result = 31 * result + url.hashCode()
         result = 31 * result + notes.hashCode()
         result = 31 * result + tags.hashCode()
+        result = 31 * result + backgroundColor.hashCode()
+        result = 31 * result + foregroundColor.hashCode()
         result = 31 * result + customFields.hashCode()
         result = 31 * result + attachments.hashCode()
         result = 31 * result + (otpModel?.hashCode() ?: 0)

app/src/main/java/com/kunzisoft/keepass/model/GroupInfo.kt

@@ -1,12 +1,15 @@
 package com.kunzisoft.keepass.model
 
 import android.os.Parcel
+import android.os.ParcelUuid
 import android.os.Parcelable
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard
 import com.kunzisoft.keepass.database.element.icon.IconImageStandard.Companion.FOLDER_ID
+import java.util.*
 
 class GroupInfo : NodeInfo {
 
+    var id: UUID? = null
     var notes: String? = null
 
     init {
@@ -16,11 +19,14 @@ class GroupInfo : NodeInfo {
     constructor(): super()
 
     constructor(parcel: Parcel): super(parcel) {
+        id = parcel.readParcelable<ParcelUuid>(ParcelUuid::class.java.classLoader)?.uuid ?: id
         notes = parcel.readString()
     }
 
     override fun writeToParcel(parcel: Parcel, flags: Int) {
         super.writeToParcel(parcel, flags)
+        val uuid = if (id != null) ParcelUuid(id) else null
+        parcel.writeParcelable(uuid, flags)
         parcel.writeString(notes)
     }
 
@@ -29,6 +35,7 @@ class GroupInfo : NodeInfo {
         if (other !is GroupInfo) return false
         if (!super.equals(other)) return false
 
+        if (id != other.id) return false
         if (notes != other.notes) return false
 
         return true
@@ -36,6 +43,7 @@ class GroupInfo : NodeInfo {
 
     override fun hashCode(): Int {
         var result = super.hashCode()
+        result = 31 * result + (id?.hashCode() ?: 0)
         result = 31 * result + (notes?.hashCode() ?: 0)
         return result
     }