Repo created

legacy/ui/base/build.gradle.kts

@@ -0,0 +1,24 @@
+plugins {
+    id(ThunderbirdPlugins.Library.android)
+}
+
+dependencies {
+    implementation(projects.legacy.core)
+
+    api(projects.core.ui.theme.manager)
+
+    api(libs.androidx.appcompat)
+    api(libs.androidx.activity)
+    api(libs.android.material)
+    api(libs.androidx.navigation.fragment)
+    api(libs.androidx.navigation.ui)
+    api(libs.androidx.lifecycle.livedata.ktx)
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.biometric)
+    implementation(libs.kotlinx.coroutines.core)
+}
+
+android {
+    namespace = "com.fsck.k9.ui.base"
+}

legacy/ui/base/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application>
+
+        <!--
+        This component is disabled by default. It will be enabled programmatically by SystemLocaleManager if necessary.
+        -->
+        <receiver
+            android:name=".locale.LocaleBroadcastReceiver"
+            android:exported="false"
+            android:enabled="false"
+            >
+            <intent-filter>
+                <action android:name="android.intent.action.LOCALE_CHANGED" />
+            </intent-filter>
+        </receiver>
+
+    </application>
+
+</manifest>

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/AppLanguageManager.kt

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+package com.fsck.k9.ui.base
+
+import android.content.res.Resources
+import com.fsck.k9.ui.base.extensions.currentLocale
+import com.fsck.k9.ui.base.locale.SystemLocaleChangeListener
+import com.fsck.k9.ui.base.locale.SystemLocaleManager
+import java.util.Locale
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.launch
+import net.thunderbird.core.preference.display.coreSettings.DisplayCoreSettingsPreferenceManager
+import net.thunderbird.core.preference.update
+
+/**
+ * Manages app language changes.
+ *
+ * - Sets the default locale when the app language is changed.
+ * - Notifies listeners when the app language has changed.
+ */
+class AppLanguageManager(
+    private val systemLocaleManager: SystemLocaleManager,
+    private val coroutineScope: CoroutineScope = MainScope(),
+    private val displayCoreSettingsPreferenceManager: DisplayCoreSettingsPreferenceManager,
+) {
+    private var currentOverrideLocale: Locale? = null
+    private val _overrideLocale = MutableSharedFlow<Locale?>(replay = 1)
+    private val _appLocale = MutableSharedFlow<Locale>(replay = 1)
+    val overrideLocale: Flow<Locale?> = _overrideLocale
+    val appLocale: Flow<Locale> = _appLocale
+
+    private val systemLocaleListener = SystemLocaleChangeListener {
+        coroutineScope.launch {
+            _appLocale.emit(systemLocale)
+        }
+    }
+
+    fun init() {
+        setLocale(getAppLanguage())
+    }
+
+    fun getOverrideLocale(): Locale? = currentOverrideLocale
+
+    fun getAppLanguage(): String {
+        return displayCoreSettingsPreferenceManager.getConfig().appLanguage
+    }
+
+    fun setAppLanguage(appLanguage: String) {
+        if (appLanguage == getAppLanguage()) {
+            return
+        }
+        displayCoreSettingsPreferenceManager.update { displayCoreSettings ->
+            displayCoreSettings.copy(appLanguage = appLanguage)
+        }
+
+        setLocale(appLanguage)
+    }
+
+    fun applyOverrideLocale() {
+        currentOverrideLocale?.let { overrideLocale ->
+            Locale.setDefault(overrideLocale)
+        }
+    }
+
+    private fun setLocale(appLanguage: String) {
+        val overrideLocale = getOverrideLocaleForLanguage(appLanguage)
+        currentOverrideLocale = overrideLocale
+
+        val locale = overrideLocale ?: systemLocale
+        Locale.setDefault(locale)
+
+        if (overrideLocale == null) {
+            systemLocaleManager.addListener(systemLocaleListener)
+        } else {
+            systemLocaleManager.removeListener(systemLocaleListener)
+        }
+
+        coroutineScope.launch {
+            _overrideLocale.emit(overrideLocale)
+            _appLocale.emit(locale)
+        }
+    }
+
+    private fun getOverrideLocaleForLanguage(appLanguage: String): Locale? {
+        return if (appLanguage.isEmpty()) {
+            null
+        } else if (appLanguage.length == 5 && appLanguage[2] == '_') {
+            // language is in the form: en_US
+            val language = appLanguage.substring(0, 2)
+            val country = appLanguage.substring(3)
+            Locale(language, country)
+        } else {
+            Locale(appLanguage)
+        }
+    }
+
+    private val systemLocale get() = Resources.getSystem().configuration.currentLocale
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/K9Activity.kt

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+package com.fsck.k9.ui.base
+
+import android.content.Context
+import android.os.Build
+import android.os.Bundle
+import android.util.AttributeSet
+import android.view.View
+import androidx.activity.enableEdgeToEdge
+import androidx.annotation.LayoutRes
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.Toolbar
+import androidx.core.app.ActivityCompat
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat.Type.displayCutout
+import androidx.core.view.WindowInsetsCompat.Type.navigationBars
+import androidx.core.view.WindowInsetsCompat.Type.systemBars
+import androidx.lifecycle.asLiveData
+import com.fsck.k9.controller.push.PushController
+import java.util.Locale
+import net.thunderbird.core.ui.theme.manager.ThemeManager
+import org.koin.android.ext.android.inject
+
+abstract class K9Activity(private val themeType: ThemeType) : AppCompatActivity() {
+    constructor() : this(ThemeType.DEFAULT)
+
+    private val pushController: PushController by inject()
+    protected val themeManager: ThemeManager by inject()
+    private val appLanguageManager: AppLanguageManager by inject()
+
+    private var overrideLocaleOnLaunch: Locale? = null
+
+    override fun attachBaseContext(baseContext: Context) {
+        overrideLocaleOnLaunch = appLanguageManager.getOverrideLocale()
+
+        val newBaseContext = overrideLocaleOnLaunch?.let { locale ->
+            LocaleContextWrapper(baseContext, locale)
+        } ?: baseContext
+
+        super.attachBaseContext(newBaseContext)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        initializeTheme()
+        initializePushController()
+        enableEdgeToEdge()
+
+        super.onCreate(savedInstanceState)
+
+        setLayoutDirection()
+        listenForAppLanguageChanges()
+    }
+
+    // On Android 12+ the layout direction doesn't seem to be updated when recreating the activity. This is a problem
+    // when switching from an LTR to an RTL language (or the other way around) using the language picker in the app.
+    private fun setLayoutDirection() {
+        if (Build.VERSION.SDK_INT >= 31) {
+            window.decorView.layoutDirection = resources.configuration.layoutDirection
+        }
+    }
+
+    private fun listenForAppLanguageChanges() {
+        appLanguageManager.overrideLocale.asLiveData().observe(this) { overrideLocale ->
+            if (overrideLocale != overrideLocaleOnLaunch) {
+                recreateCompat()
+            }
+        }
+    }
+
+    private fun initializeTheme() {
+        val theme = when (themeType) {
+            ThemeType.DEFAULT -> themeManager.appThemeResourceId
+            ThemeType.DIALOG -> themeManager.translucentDialogThemeResourceId
+        }
+        setTheme(theme)
+    }
+
+    private fun initializePushController() {
+        pushController.init()
+    }
+
+    protected fun setLayout(@LayoutRes layoutResId: Int) {
+        setContentView(layoutResId)
+        val toolbar = findViewById<Toolbar>(R.id.toolbar)
+            ?: error("K9 layouts must provide a toolbar with id='toolbar'.")
+
+        setSupportActionBar(toolbar)
+        ViewCompat.setOnApplyWindowInsetsListener(toolbar) { v, windowsInsets ->
+            val insets = windowsInsets.getInsets(systemBars() or displayCutout())
+            v.setPadding(insets.left, insets.top, insets.right, 0)
+
+            windowsInsets
+        }
+    }
+
+    override fun onCreateView(parent: View?, name: String, context: Context, attrs: AttributeSet): View? {
+        val newView = super.onCreateView(parent, name, context, attrs)
+        if (newView != null) initializeInsets(newView)
+        return newView
+    }
+
+    private fun initializeInsets(view: View) {
+        ViewCompat.setOnApplyWindowInsetsListener(view) { v, windowsInsets ->
+            val insets = windowsInsets.getInsets(displayCutout() or navigationBars())
+            v.setPadding(insets.left, 0, insets.right, insets.bottom)
+
+            windowsInsets
+        }
+    }
+
+    protected fun recreateCompat() {
+        ActivityCompat.recreate(this)
+    }
+}
+
+enum class ThemeType {
+    DEFAULT,
+    DIALOG,
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/KoinModule.kt

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+package com.fsck.k9.ui.base
+
+import com.fsck.k9.ui.base.locale.SystemLocaleManager
+import net.thunderbird.core.ui.theme.manager.ThemeManager
+import org.koin.core.qualifier.named
+import org.koin.dsl.module
+
+val uiBaseModule = module {
+    single {
+        ThemeManager(
+            context = get(),
+            themeProvider = get(),
+            generalSettingsManager = get(),
+            appCoroutineScope = get(named("AppCoroutineScope")),
+        )
+    }
+    single { AppLanguageManager(systemLocaleManager = get(), displayCoreSettingsPreferenceManager = get()) }
+    single { SystemLocaleManager(context = get()) }
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/LocaleContextWrapper.kt

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+package com.fsck.k9.ui.base
+
+import android.content.Context
+import android.content.ContextWrapper
+import android.content.res.Configuration
+import com.fsck.k9.ui.base.extensions.currentLocale
+import java.util.Locale
+
+/**
+ * In combination with `AppCompatActivity` this will override the locale in the configuration.
+ */
+internal class LocaleContextWrapper(baseContext: Context, private val locale: Locale) : ContextWrapper(baseContext) {
+    override fun createConfigurationContext(overrideConfiguration: Configuration): Context {
+        overrideConfiguration.currentLocale = locale
+        return super.createConfigurationContext(overrideConfiguration)
+    }
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/bundle/BundleExtensions.kt

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+package com.fsck.k9.ui.base.bundle
+
+import android.os.Bundle
+
+fun <T : Enum<T>> Bundle.putEnum(key: String, value: T) {
+    putString(key, value.name)
+}
+
+inline fun <reified T : Enum<T>> Bundle.getEnum(key: String, defaultValue: T): T {
+    val value = getString(key) ?: return defaultValue
+    return enumValueOf(value)
+}
+
+inline fun <reified T : Enum<T>> Bundle.getEnum(key: String): T {
+    val value = getString(key) ?: error("Missing enum value for key '$key'")
+    return enumValueOf(value)
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/extensions/ConfigurationExtensions.kt

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+package com.fsck.k9.ui.base.extensions
+
+import android.content.res.Configuration
+import android.os.Build
+import android.os.LocaleList
+import androidx.annotation.RequiresApi
+import java.util.Locale
+
+@Suppress("DEPRECATION")
+var Configuration.currentLocale: Locale
+    get() {
+        return if (Build.VERSION.SDK_INT >= 24) {
+            locales[0]
+        } else {
+            locale
+        }
+    }
+    set(value) {
+        if (Build.VERSION.SDK_INT >= 24) {
+            setLocales(createLocaleList(value, locales))
+        } else {
+            setLocale(value)
+        }
+    }
+
+@RequiresApi(24)
+private fun createLocaleList(topLocale: Locale, otherLocales: LocaleList): LocaleList {
+    if (!otherLocales.isEmpty && otherLocales[0] == topLocale) {
+        return otherLocales
+    }
+
+    val locales = mutableListOf(topLocale)
+    for (index in 0 until otherLocales.size()) {
+        val currentLocale = otherLocales[index]
+        if (currentLocale != topLocale) {
+            locales.add(currentLocale)
+        }
+    }
+
+    return LocaleList(*locales.toTypedArray())
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/extensions/FragmentExtensions.kt

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+package com.fsck.k9.ui.base.extensions
+
+import androidx.core.os.bundleOf
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
+import androidx.fragment.app.FragmentTransaction
+
+inline fun FragmentActivity.fragmentTransaction(crossinline block: FragmentTransaction.() -> Unit) {
+    with(supportFragmentManager.beginTransaction()) {
+        block()
+        commit()
+    }
+}
+
+inline fun FragmentActivity.fragmentTransactionWithBackStack(
+    name: String? = null,
+    crossinline block: FragmentTransaction.() -> Unit,
+) {
+    fragmentTransaction {
+        block()
+        addToBackStack(name)
+    }
+}
+
+fun <T : Fragment> T.withArguments(vararg argumentPairs: Pair<String, Any?>) = apply {
+    arguments = bundleOf(*argumentPairs)
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/extensions/NavigationExtensions.kt

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+package com.fsck.k9.ui.base.extensions
+
+import androidx.annotation.IdRes
+import androidx.fragment.app.FragmentActivity
+import androidx.navigation.NavController
+import androidx.navigation.fragment.NavHostFragment
+
+fun FragmentActivity.findNavController(@IdRes containerIdRes: Int): NavController {
+    val navHostFragment = supportFragmentManager.findFragmentById(containerIdRes) as NavHostFragment
+    return navHostFragment.navController
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/livedata/LiveDataExtensions.kt

@@ -0,0 +1,8 @@
+package com.fsck.k9.ui.base.livedata
+
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.LiveData
+
+fun <T> LiveData<T>.observeNotNull(owner: LifecycleOwner, observer: (T) -> Unit) {
+    this.observe(owner) { observer(it!!) }
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/loader/LiveDataLoader.kt

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+package com.fsck.k9.ui.base.loader
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.liveData
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.cancelAndJoin
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import net.thunderbird.core.logging.legacy.Log
+
+const val LOADING_INDICATOR_DELAY = 500L
+
+/**
+ * Load data in an I/O thread. Updates the returned [LiveData] with the current loading state.
+ *
+ * If loading takes longer than [LOADING_INDICATOR_DELAY] the [LoaderState.Loading] state will be emitted so the UI can
+ * display a loading indicator. We use a delay so fast loads won't flash a loading indicator.
+ * If an exception is thrown during loading the [LoaderState.Error] state is emitted.
+ * If the data was loaded successfully [LoaderState.Data] will be emitted containing the data.
+ */
+fun <T> liveDataLoader(block: CoroutineScope.() -> T): LiveData<LoaderState<T>> = liveData {
+    coroutineScope {
+        val job = launch {
+            delay(LOADING_INDICATOR_DELAY)
+
+            // Emit loading state if loading took longer than configured delay. If the data was loaded faster than that,
+            // this coroutine will have been canceled before the next line is executed.
+            emit(LoaderState.Loading)
+        }
+
+        val finalState = try {
+            val data = withContext(Dispatchers.IO) {
+                block()
+            }
+
+            LoaderState.Data(data)
+        } catch (e: Exception) {
+            Log.e(e, "Error loading data")
+            LoaderState.Error
+        }
+
+        // Cancel job that emits Loading state
+        job.cancelAndJoin()
+
+        emit(finalState)
+    }
+}
+
+sealed class LoaderState<out T> {
+    object Loading : LoaderState<Nothing>()
+    object Error : LoaderState<Nothing>()
+    class Data<T>(val data: T) : LoaderState<T>()
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/loader/LoaderStateObserver.kt

@@ -0,0 +1,50 @@
+package com.fsck.k9.ui.base.loader
+
+import android.view.View
+import androidx.core.view.isVisible
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.Observer
+
+/**
+ * Use to observe the [LiveData] returned by [liveDataLoader].
+ *
+ * Works with separate views for the [LoaderState.Loading], [LoaderState.Error], and [LoaderState.Data] states. The
+ * view associated with the current state is made visible and the others are hidden. For the [LoaderState.Data] state
+ * the [displayData] function is also called.
+ */
+fun <T> LiveData<LoaderState<T>>.observeLoading(
+    owner: LifecycleOwner,
+    loadingView: View,
+    errorView: View,
+    dataView: View,
+    displayData: (T) -> Unit,
+) {
+    observe(owner, LoaderStateObserver(loadingView, errorView, dataView, displayData))
+}
+
+private class LoaderStateObserver<T>(
+    private val loadingView: View,
+    private val errorView: View,
+    private val dataView: View,
+    private val displayData: (T) -> Unit,
+) : Observer<LoaderState<T>> {
+    private val allViews = setOf(loadingView, errorView, dataView)
+
+    override fun onChanged(value: LoaderState<T>) {
+        when (value) {
+            is LoaderState.Loading -> loadingView.show()
+            is LoaderState.Error -> errorView.show()
+            is LoaderState.Data -> {
+                dataView.show()
+                displayData(value.data)
+            }
+        }
+    }
+
+    private fun View.show() {
+        for (view in allViews) {
+            view.isVisible = view === this
+        }
+    }
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/locale/LocaleBroadcastReceiver.kt

@@ -0,0 +1,17 @@
+package com.fsck.k9.ui.base.locale
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import org.koin.core.component.KoinComponent
+import org.koin.core.component.inject
+
+class LocaleBroadcastReceiver : BroadcastReceiver(), KoinComponent {
+    private val systemLocaleManager: SystemLocaleManager by inject()
+
+    override fun onReceive(context: Context, intent: Intent?) {
+        if (intent?.action == Intent.ACTION_LOCALE_CHANGED) {
+            systemLocaleManager.notifyListeners()
+        }
+    }
+}

legacy/ui/base/src/main/java/com/fsck/k9/ui/base/locale/SystemLocaleManager.kt

@@ -0,0 +1,68 @@
+package com.fsck.k9.ui.base.locale
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.pm.PackageManager
+import java.util.concurrent.CopyOnWriteArraySet
+import net.thunderbird.core.logging.legacy.Log
+
+class SystemLocaleManager(context: Context) {
+    private val packageManager = context.packageManager
+    private val componentName = ComponentName(context, LocaleBroadcastReceiver::class.java)
+
+    private val listeners = CopyOnWriteArraySet<SystemLocaleChangeListener>()
+
+    @Synchronized
+    fun addListener(listener: SystemLocaleChangeListener) {
+        if (listeners.isEmpty()) {
+            enableReceiver()
+        }
+
+        listeners.add(listener)
+    }
+
+    @Synchronized
+    fun removeListener(listener: SystemLocaleChangeListener) {
+        listeners.remove(listener)
+
+        if (listeners.isEmpty()) {
+            disableReceiver()
+        }
+    }
+
+    internal fun notifyListeners() {
+        for (listener in listeners) {
+            listener.onSystemLocaleChanged()
+        }
+    }
+
+    private fun enableReceiver() {
+        Log.v("Enable LocaleBroadcastReceiver")
+        try {
+            packageManager.setComponentEnabledSetting(
+                componentName,
+                PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
+                PackageManager.DONT_KILL_APP,
+            )
+        } catch (e: Exception) {
+            Log.e(e, "Error enabling LocaleBroadcastReceiver")
+        }
+    }
+
+    private fun disableReceiver() {
+        Log.v("Disable LocaleBroadcastReceiver")
+        try {
+            packageManager.setComponentEnabledSetting(
+                componentName,
+                PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
+                PackageManager.DONT_KILL_APP,
+            )
+        } catch (e: Exception) {
+            Log.e(e, "Error disabling LocaleBroadcastReceiver")
+        }
+    }
+}
+
+fun interface SystemLocaleChangeListener {
+    fun onSystemLocaleChanged()
+}

legacy/ui/base/src/main/res/layout/toolbar.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Don't use a this layout when using a subtitle. See https://issuetracker.google.com/issues/135865267 -->
+<com.google.android.material.appbar.MaterialToolbar
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/toolbar"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    />

legacy/ui/base/src/main/res/values-am/strings.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>

legacy/ui/base/src/main/res/values-ar/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">حسنًا</string>
+    <string name="cancel_action">إلغ</string>
+    <string name="star_button_description">نجمة</string>
+</resources>

legacy/ui/base/src/main/res/values-ast/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="cancel_action">Encaboxar</string>
+</resources>

legacy/ui/base/src/main/res/values-az/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Oldu</string>
+    <string name="cancel_action">Ləğv et</string>
+    <string name="star_button_description">Ulduz</string>
+</resources>

legacy/ui/base/src/main/res/values-be/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Добра</string>
+    <string name="cancel_action">Скасаваць</string>
+    <string name="star_button_description">Выбранае</string>
+</resources>

legacy/ui/base/src/main/res/values-bg/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">ОК</string>
+    <string name="cancel_action">Отказ</string>
+    <string name="star_button_description">Звезда</string>
+</resources>

legacy/ui/base/src/main/res/values-bn/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="okay_action">আচ্ছা</string>
+    <string name="cancel_action">ঠিকাছে</string>
+    <string name="star_button_description">তারা</string>
+</resources>

legacy/ui/base/src/main/res/values-br/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Nullañ</string>
+</resources>

legacy/ui/base/src/main/res/values-bs/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="okay_action">U redu</string>
+    <string name="cancel_action">Otkaži</string>
+</resources>

legacy/ui/base/src/main/res/values-ca/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">D\'acord</string>
+    <string name="cancel_action">Cancel·la</string>
+    <string name="star_button_description">Destaca</string>
+</resources>

legacy/ui/base/src/main/res/values-co/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="okay_action">Vai</string>
+    <string name="cancel_action">Abbandunà</string>
+    <string name="star_button_description">Aghjunghje una stella</string>
+</resources>

legacy/ui/base/src/main/res/values-cs/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Zrušit</string>
+    <string name="star_button_description">Hvězdička</string>
+</resources>

legacy/ui/base/src/main/res/values-cy/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Iawn</string>
+    <string name="cancel_action">Diddymu</string>
+    <string name="star_button_description">Enw hygyrch ar gyfer y botwm seren</string>
+</resources>

legacy/ui/base/src/main/res/values-da/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">O.k.</string>
+    <string name="cancel_action">Annullér</string>
+</resources>

legacy/ui/base/src/main/res/values-de/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Abbrechen</string>
+    <string name="star_button_description">Wichtigkeit</string>
+</resources>

legacy/ui/base/src/main/res/values-el/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Ακύρωση</string>
+    <string name="star_button_description">Αστέρι</string>
+</resources>

legacy/ui/base/src/main/res/values-en-rGB/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Cancel</string>
+    <string name="star_button_description">Star</string>
+</resources>

legacy/ui/base/src/main/res/values-enm/strings.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>

legacy/ui/base/src/main/res/values-eo/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Bone</string>
+    <string name="cancel_action">Nuligi</string>
+    <string name="star_button_description">Steleto</string>
+</resources>

legacy/ui/base/src/main/res/values-es/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Aceptar</string>
+    <string name="cancel_action">Cancelar</string>
+    <string name="star_button_description">Destacar</string>
+</resources>

legacy/ui/base/src/main/res/values-et/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Ok</string>
+    <string name="cancel_action">Tühista</string>
+    <string name="star_button_description">Märgi tähega</string>
+</resources>

legacy/ui/base/src/main/res/values-eu/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Ados</string>
+    <string name="cancel_action">Utzi</string>
+    <string name="star_button_description">Nabarmendu</string>
+</resources>

legacy/ui/base/src/main/res/values-fa/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">خب</string>
+    <string name="cancel_action">لغو</string>
+    <string name="star_button_description">ستاره</string>
+</resources>

legacy/ui/base/src/main/res/values-fi/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Peruuta</string>
+    <string name="star_button_description">Tähti</string>
+</resources>

legacy/ui/base/src/main/res/values-fr/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">D’accord</string>
+    <string name="cancel_action">Annuler</string>
+    <string name="star_button_description">Ajouter une étoile</string>
+</resources>

legacy/ui/base/src/main/res/values-fy/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Annulearje</string>
+    <string name="star_button_description">Stjer</string>
+</resources>

legacy/ui/base/src/main/res/values-ga/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="star_button_description">Réalta</string>
+    <string name="okay_action">Ceart go leor</string>
+    <string name="cancel_action">Cealaigh</string>
+</resources>

legacy/ui/base/src/main/res/values-gd/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Ceart ma-thà</string>
+    <string name="cancel_action">Sguir dheth</string>
+    <string name="star_button_description">Rionnag</string>
+</resources>

legacy/ui/base/src/main/res/values-gl/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Aceptar</string>
+    <string name="cancel_action">Cancelar</string>
+</resources>

legacy/ui/base/src/main/res/values-gu/strings.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>

legacy/ui/base/src/main/res/values-hi/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="okay_action">ठीक है</string>
+    <string name="cancel_action">कैंसिल करें</string>
+</resources>

legacy/ui/base/src/main/res/values-hr/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">U redu</string>
+    <string name="cancel_action">Otkaži</string>
+    <string name="star_button_description">Označi zvjezdicom</string>
+</resources>

legacy/ui/base/src/main/res/values-hu/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Mégse</string>
+    <string name="star_button_description">Csillag</string>
+</resources>

legacy/ui/base/src/main/res/values-hy/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Լաւ</string>
+    <string name="cancel_action">Չեղարկել</string>
+</resources>

legacy/ui/base/src/main/res/values-in/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Oke</string>
+    <string name="cancel_action">Batalkan</string>
+    <string name="star_button_description">Bintang</string>
+</resources>

legacy/ui/base/src/main/res/values-is/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Í lagi</string>
+    <string name="cancel_action">Hætta við</string>
+    <string name="star_button_description">Stjörnumerkja</string>
+</resources>

legacy/ui/base/src/main/res/values-it/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Annulla</string>
+    <string name="star_button_description">Stella</string>
+</resources>

legacy/ui/base/src/main/res/values-iw/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">אישור</string>
+    <string name="cancel_action">ביטול</string>
+    <string name="star_button_description">כוכב</string>
+</resources>

legacy/ui/base/src/main/res/values-ja/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">キャンセル</string>
+    <string name="star_button_description">スターを付ける</string>
+</resources>

legacy/ui/base/src/main/res/values-ka/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">ᲝᲙ</string>
+    <string name="cancel_action">გაუქმება</string>
+</resources>

legacy/ui/base/src/main/res/values-kab/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="cancel_action">Sefsex</string>
+    <string name="star_button_description">Rnu itri</string>
+</resources>

legacy/ui/base/src/main/res/values-kk/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Бас тарту</string>
+    <string name="star_button_description">Жұлдызша</string>
+</resources>

legacy/ui/base/src/main/res/values-ko/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">확인</string>
+    <string name="cancel_action">취소</string>
+</resources>

legacy/ui/base/src/main/res/values-lt/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Gerai</string>
+    <string name="cancel_action">Atsisakyti</string>
+    <string name="star_button_description">Pažymėti žvaigždute</string>
+</resources>

legacy/ui/base/src/main/res/values-lv/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Piekrist</string>
+    <string name="cancel_action">Atcelt</string>
+</resources>

legacy/ui/base/src/main/res/values-ml/strings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">ശരി</string>
+    <string name="cancel_action">റദ്ദാക്കുക</string>
+</resources>

legacy/ui/base/src/main/res/values-nb/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Avbryt</string>
+    <string name="star_button_description">Stjernemerk</string>
+</resources>

legacy/ui/base/src/main/res/values-nl/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Annuleren</string>
+    <string name="star_button_description">Ster</string>
+</resources>

legacy/ui/base/src/main/res/values-nn/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Greitt</string>
+    <string name="cancel_action">Avbryt</string>
+    <string name="star_button_description">Stjerne</string>
+</resources>

legacy/ui/base/src/main/res/values-pl/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Anuluj</string>
+    <string name="star_button_description">Gwiazdka</string>
+</resources>

legacy/ui/base/src/main/res/values-pt-rBR/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Cancelar</string>
+    <string name="star_button_description">Estrela</string>
+</resources>

legacy/ui/base/src/main/res/values-pt-rPT/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Cancelar</string>
+    <string name="star_button_description">Estrela</string>
+</resources>

legacy/ui/base/src/main/res/values-pt/strings.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>

legacy/ui/base/src/main/res/values-ro/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Renunță</string>
+    <string name="star_button_description">Stea</string>
+</resources>

legacy/ui/base/src/main/res/values-ru/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">ОК</string>
+    <string name="cancel_action">Отмена</string>
+    <string name="star_button_description">Избранное</string>
+</resources>

legacy/ui/base/src/main/res/values-sk/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Zrušiť</string>
+    <string name="star_button_description">Hviezdička</string>
+</resources>

legacy/ui/base/src/main/res/values-sl/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">V redu</string>
+    <string name="cancel_action">Prekliči</string>
+    <string name="star_button_description">Zvezdica</string>
+</resources>

legacy/ui/base/src/main/res/values-sq/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Anuloje</string>
+    <string name="star_button_description">Yll</string>
+</resources>

legacy/ui/base/src/main/res/values-sr/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">У реду</string>
+    <string name="cancel_action">Одустани</string>
+    <string name="star_button_description">Звездица</string>
+</resources>

legacy/ui/base/src/main/res/values-sv/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Avbryt</string>
+    <string name="star_button_description">Stjärna</string>
+</resources>

legacy/ui/base/src/main/res/values-sw/strings.xml

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+</resources>

legacy/ui/base/src/main/res/values-ta-rIN/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">சரி</string>
+    <string name="cancel_action">வேண்டாம்</string>
+    <string name="star_button_description">விண்மீன்</string>
+</resources>

legacy/ui/base/src/main/res/values-th/strings.xml

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+</resources>

legacy/ui/base/src/main/res/values-tr/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Tamam</string>
+    <string name="cancel_action">İptal</string>
+    <string name="star_button_description">Yıldız</string>
+</resources>

legacy/ui/base/src/main/res/values-uk/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">Гаразд</string>
+    <string name="cancel_action">Скасувати</string>
+    <string name="star_button_description">Позначити зірочкою</string>
+</resources>

legacy/ui/base/src/main/res/values-vi/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">OK</string>
+    <string name="cancel_action">Hủy bỏ</string>
+    <string name="star_button_description">Sao</string>
+</resources>

legacy/ui/base/src/main/res/values-zh-rCN/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">确定</string>
+    <string name="cancel_action">取消</string>
+    <string name="star_button_description">星标</string>
+</resources>

legacy/ui/base/src/main/res/values-zh-rTW/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--Used to confirm acceptance of dialog boxes, warnings, errors, etc.-->
+    <string name="okay_action">確定</string>
+    <string name="cancel_action">取消</string>
+    <string name="star_button_description">加上星號</string>
+</resources>

legacy/ui/base/src/main/res/values/dimensions.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <dimen name="toolbarTitleMarginVertical">8dp</dimen>
+</resources>

legacy/ui/base/src/main/res/values/strings.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Used to confirm acceptance of dialog boxes, warnings, errors, etc. -->
+    <string name="okay_action">OK</string>
+    <!-- Text of the cancel button in dialogs -->
+    <string name="cancel_action">Cancel</string>
+    <!-- Accessible name for the star button -->
+    <string name="star_button_description">Star</string>
+</resources>

legacy/ui/folder/build.gradle.kts

@@ -0,0 +1,19 @@
+plugins {
+    id(ThunderbirdPlugins.Library.android)
+}
+
+android {
+    namespace = "app.k9mail.legacy.ui.folder"
+}
+
+dependencies {
+    implementation(projects.core.ui.legacy.designsystem)
+
+    implementation(projects.core.android.account)
+    implementation(projects.legacy.mailstore)
+    implementation(projects.legacy.message)
+    implementation(projects.feature.mail.account.api)
+    implementation(projects.feature.mail.folder.api)
+
+    implementation(libs.androidx.lifecycle.livedata.ktx)
+}

legacy/ui/folder/src/main/java/app/k9mail/legacy/ui/folder/DefaultDisplayFolderRepository.kt

@@ -0,0 +1,114 @@
+package app.k9mail.legacy.ui.folder
+
+import app.k9mail.legacy.mailstore.FolderSettingsChangedListener
+import app.k9mail.legacy.mailstore.FolderTypeMapper
+import app.k9mail.legacy.mailstore.MessageStoreManager
+import app.k9mail.legacy.message.controller.MessagingControllerRegistry
+import app.k9mail.legacy.message.controller.SimpleMessagingListener
+import kotlin.coroutines.CoroutineContext
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.channels.trySendBlocking
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.buffer
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.flowOn
+import net.thunderbird.core.android.account.AccountManager
+import net.thunderbird.core.android.account.LegacyAccount
+import net.thunderbird.feature.mail.folder.api.Folder
+import net.thunderbird.feature.mail.folder.api.FolderType
+import net.thunderbird.feature.mail.folder.api.OutboxFolderManager
+import com.fsck.k9.mail.FolderType as LegacyFolderType
+
+class DefaultDisplayFolderRepository(
+    private val accountManager: AccountManager,
+    private val messagingController: MessagingControllerRegistry,
+    private val messageStoreManager: MessageStoreManager,
+    private val outboxFolderManager: OutboxFolderManager,
+    private val coroutineContext: CoroutineContext = Dispatchers.IO,
+) : DisplayFolderRepository {
+    private val sortForDisplay =
+        compareByDescending<DisplayFolder> { it.folder.type == FolderType.INBOX }
+            .thenByDescending { it.folder.type == FolderType.OUTBOX }
+            .thenByDescending { it.folder.type != FolderType.REGULAR }
+            .thenByDescending { it.isInTopGroup }
+            .thenBy(String.CASE_INSENSITIVE_ORDER) { it.folder.name }
+
+    private fun getDisplayFolders(
+        account: LegacyAccount,
+        outboxFolderId: Long,
+        includeHiddenFolders: Boolean,
+    ): List<DisplayFolder> {
+        val messageStore = messageStoreManager.getMessageStore(account.uuid)
+        return messageStore.getDisplayFolders(
+            includeHiddenFolders = includeHiddenFolders,
+            outboxFolderId = outboxFolderId,
+        ) { folder ->
+            DisplayFolder(
+                folder = Folder(
+                    id = folder.id,
+                    name = folder.name,
+                    type = folder.takeIf { it.id == outboxFolderId }?.type?.toFolderType()
+                        ?: FolderTypeMapper.folderTypeOf(account, folder.id),
+                    isLocalOnly = folder.isLocalOnly,
+                ),
+                isInTopGroup = folder.isInTopGroup,
+                unreadMessageCount = folder.unreadMessageCount,
+                starredMessageCount = folder.starredMessageCount,
+                pathDelimiter = account.folderPathDelimiter,
+            )
+        }.sortedWith(sortForDisplay)
+    }
+
+    override fun getDisplayFoldersFlow(
+        account: LegacyAccount,
+        includeHiddenFolders: Boolean,
+    ): Flow<List<DisplayFolder>> {
+        val messageStore = messageStoreManager.getMessageStore(account.uuid)
+
+        return callbackFlow {
+            val outboxFolderId = outboxFolderManager.getOutboxFolderId(account.id)
+            send(getDisplayFolders(account, outboxFolderId, includeHiddenFolders))
+
+            val folderStatusChangedListener = object : SimpleMessagingListener() {
+                override fun folderStatusChanged(statusChangedAccount: LegacyAccount, folderId: Long) {
+                    if (statusChangedAccount.uuid == account.uuid) {
+                        trySendBlocking(getDisplayFolders(account, outboxFolderId, includeHiddenFolders))
+                    }
+                }
+            }
+            messagingController.addListener(folderStatusChangedListener)
+
+            val folderSettingsChangedListener = FolderSettingsChangedListener {
+                trySendBlocking(getDisplayFolders(account, outboxFolderId, includeHiddenFolders))
+            }
+            messageStore.addFolderSettingsChangedListener(folderSettingsChangedListener)
+
+            awaitClose {
+                messagingController.removeListener(folderStatusChangedListener)
+                messageStore.removeFolderSettingsChangedListener(folderSettingsChangedListener)
+            }
+        }.buffer(capacity = Channel.CONFLATED)
+            .distinctUntilChanged()
+            .flowOn(coroutineContext)
+    }
+
+    override fun getDisplayFoldersFlow(accountUuid: String): Flow<List<DisplayFolder>> {
+        val account = accountManager.getAccount(accountUuid) ?: error("Account not found: $accountUuid")
+        return getDisplayFoldersFlow(account, includeHiddenFolders = false)
+    }
+
+    private fun LegacyFolderType.toFolderType(): FolderType =
+        when (this) {
+            LegacyFolderType.REGULAR -> FolderType.REGULAR
+            LegacyFolderType.INBOX -> FolderType.INBOX
+            LegacyFolderType.OUTBOX -> FolderType.OUTBOX
+            LegacyFolderType.DRAFTS -> FolderType.DRAFTS
+            LegacyFolderType.SENT -> FolderType.SENT
+            LegacyFolderType.TRASH -> FolderType.TRASH
+            LegacyFolderType.SPAM -> FolderType.SPAM
+            LegacyFolderType.ARCHIVE -> FolderType.ARCHIVE
+        }
+}

legacy/ui/folder/src/main/java/app/k9mail/legacy/ui/folder/DisplayFolder.kt

@@ -0,0 +1,12 @@
+package app.k9mail.legacy.ui.folder
+
+import net.thunderbird.feature.mail.folder.api.Folder
+import net.thunderbird.feature.mail.folder.api.FolderPathDelimiter
+
+data class DisplayFolder(
+    val folder: Folder,
+    val isInTopGroup: Boolean,
+    val unreadMessageCount: Int,
+    val starredMessageCount: Int,
+    val pathDelimiter: FolderPathDelimiter,
+)

legacy/ui/folder/src/main/java/app/k9mail/legacy/ui/folder/DisplayFolderRepository.kt

@@ -0,0 +1,11 @@
+package app.k9mail.legacy.ui.folder
+
+import kotlinx.coroutines.flow.Flow
+import net.thunderbird.core.android.account.LegacyAccount
+
+interface DisplayFolderRepository {
+
+    fun getDisplayFoldersFlow(account: LegacyAccount, includeHiddenFolders: Boolean): Flow<List<DisplayFolder>>
+
+    fun getDisplayFoldersFlow(accountUuid: String): Flow<List<DisplayFolder>>
+}

legacy/ui/folder/src/main/java/app/k9mail/legacy/ui/folder/FolderIconProvider.kt

@@ -0,0 +1,17 @@
+package app.k9mail.legacy.ui.folder
+
+import app.k9mail.core.ui.legacy.designsystem.atom.icon.Icons
+import net.thunderbird.feature.mail.folder.api.FolderType
+
+class FolderIconProvider {
+    fun getFolderIcon(type: FolderType): Int = when (type) {
+        FolderType.INBOX -> Icons.Outlined.Inbox
+        FolderType.OUTBOX -> Icons.Outlined.Outbox
+        FolderType.SENT -> Icons.Outlined.Send
+        FolderType.TRASH -> Icons.Outlined.Delete
+        FolderType.DRAFTS -> Icons.Outlined.Draft
+        FolderType.ARCHIVE -> Icons.Outlined.Archive
+        FolderType.SPAM -> Icons.Outlined.Report
+        FolderType.REGULAR -> Icons.Outlined.Folder
+    }
+}

legacy/ui/folder/src/main/java/app/k9mail/legacy/ui/folder/FolderNameFormatter.kt

@@ -0,0 +1,34 @@
+package app.k9mail.legacy.ui.folder
+
+import android.content.res.Resources
+import net.thunderbird.feature.mail.folder.api.Folder
+import net.thunderbird.feature.mail.folder.api.FolderType
+import net.thunderbird.feature.mail.folder.api.RemoteFolder
+
+class FolderNameFormatter(private val resources: Resources) {
+    fun displayName(folder: Folder): String {
+        return if (folder.isLocalOnly) {
+            localFolderDisplayName(folder)
+        } else {
+            remoteFolderDisplayName(folder)
+        }
+    }
+
+    private fun localFolderDisplayName(folder: Folder) = when (folder.type) {
+        FolderType.OUTBOX -> resources.getString(R.string.special_mailbox_name_outbox)
+        FolderType.DRAFTS -> resources.getString(R.string.special_mailbox_name_drafts)
+        FolderType.SENT -> resources.getString(R.string.special_mailbox_name_sent)
+        FolderType.TRASH -> resources.getString(R.string.special_mailbox_name_trash)
+        else -> folder.name
+    }
+
+    private fun remoteFolderDisplayName(folder: Folder) = when (folder.type) {
+        FolderType.INBOX -> resources.getString(R.string.special_mailbox_name_inbox)
+        else -> folder.name
+    }
+
+    fun displayName(folder: RemoteFolder) = when (folder.type) {
+        FolderType.INBOX -> resources.getString(R.string.special_mailbox_name_inbox)
+        else -> folder.name
+    }
+}

legacy/ui/folder/src/main/java/app/k9mail/legacy/ui/folder/KoinModule.kt

@@ -0,0 +1,14 @@
+package app.k9mail.legacy.ui.folder
+
+import org.koin.dsl.module
+
+val uiFolderModule = module {
+    single<DisplayFolderRepository> {
+        DefaultDisplayFolderRepository(
+            accountManager = get(),
+            messagingController = get(),
+            messageStoreManager = get(),
+            outboxFolderManager = get(),
+        )
+    }
+}

legacy/ui/folder/src/main/res/values-am/strings.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>

legacy/ui/folder/src/main/res/values-ar/strings.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="special_mailbox_name_outbox">الصادر</string>
+    <string name="special_mailbox_name_drafts">المسودات</string>
+    <string name="special_mailbox_name_sent">المُرسَل</string>
+    <string name="special_mailbox_name_trash">المهملات</string>
+    <string name="special_mailbox_name_inbox">الوارد</string>
+</resources>

legacy/ui/folder/src/main/res/values-ast/strings.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>

legacy/ui/folder/src/main/res/values-az/strings.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources></resources>

legacy/ui/folder/src/main/res/values-be/strings.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="special_mailbox_name_outbox">Адпраўленыя</string>
+    <string name="special_mailbox_name_drafts">Чарнавікі</string>
+    <string name="special_mailbox_name_sent">Адпраўлена</string>
+    <string name="special_mailbox_name_trash">Сметніца</string>
+    <string name="special_mailbox_name_inbox">Атрыманыя</string>
+</resources>

legacy/ui/folder/src/main/res/values-bg/strings.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="special_mailbox_name_outbox">Изходящи</string>
+    <string name="special_mailbox_name_drafts">Чернови</string>
+    <string name="special_mailbox_name_sent">Изпратени</string>
+    <string name="special_mailbox_name_trash">Кошче</string>
+    <string name="special_mailbox_name_inbox">Входящи</string>
+</resources>

legacy/ui/folder/src/main/res/values-bn/strings.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="special_mailbox_name_sent">পাঠানো হয়েছে</string>
+    <string name="special_mailbox_name_inbox">ইনবক্স</string>
+    <string name="special_mailbox_name_trash">ঝুড়ি</string>
+    <string name="special_mailbox_name_outbox">আউটবক্স</string>
+    <string name="special_mailbox_name_drafts">খসড়া</string>
+</resources>