Option to disable dynamic shortcuts

app/src/main/java/org/koitharu/kotatsu/core/os/ShortcutsUpdater.kt

@@ -2,10 +2,12 @@ package org.koitharu.kotatsu.core.os
 
 import android.app.ActivityManager
 import android.content.Context
+import android.content.SharedPreferences
 import android.content.pm.ShortcutManager
 import android.media.ThumbnailUtils
 import android.os.Build
 import android.util.Size
+import androidx.annotation.RequiresApi
 import androidx.annotation.VisibleForTesting
 import androidx.core.content.pm.ShortcutInfoCompat
 import androidx.core.content.pm.ShortcutManagerCompat
@@ -22,6 +24,7 @@ import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.domain.MangaDataRepository
 import org.koitharu.kotatsu.core.db.TABLE_HISTORY
+import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.history.domain.HistoryRepository
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.reader.ui.ReaderActivity
@@ -35,13 +38,18 @@ class ShortcutsUpdater @Inject constructor(
 	private val coil: ImageLoader,
 	private val historyRepository: HistoryRepository,
 	private val mangaRepository: MangaDataRepository,
-) : InvalidationTracker.Observer(TABLE_HISTORY) {
+	private val settings: AppSettings,
+) : InvalidationTracker.Observer(TABLE_HISTORY), SharedPreferences.OnSharedPreferenceChangeListener {
 
 	private val iconSize by lazy { getIconSize(context) }
 	private var shortcutsUpdateJob: Job? = null
 
-	override fun onInvalidated(tables: MutableSet<String>) {
+	init {
-		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
+		settings.subscribe(this)
+	}
+
+	override fun onInvalidated(tables: Set<String>) {
+		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1 || !settings.isDynamicShortcutsEnabled) {
 			return
 		}
 		val prevJob = shortcutsUpdateJob
@@ -51,6 +59,16 @@ class ShortcutsUpdater @Inject constructor(
 		}
 	}
 
+	override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1 && key == AppSettings.KEY_SHORTCUTS) {
+			if (settings.isDynamicShortcutsEnabled) {
+				onInvalidated(emptySet())
+			} else {
+				clearShortcuts()
+			}
+		}
+	}
+
 	suspend fun requestPinShortcut(manga: Manga): Boolean {
 		return ShortcutManagerCompat.requestPinShortcut(
 			context,
@@ -64,6 +82,15 @@ class ShortcutsUpdater @Inject constructor(
 		return shortcutsUpdateJob?.join() != null
 	}
 
+	fun isDynamicShortcutsAvailable(): Boolean {
+		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N_MR1) {
+			return false
+		}
+		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
+		return manager.maxShortcutCountPerActivity > 0
+	}
+
+	@RequiresApi(Build.VERSION_CODES.N_MR1)
 	private suspend fun updateShortcutsImpl() = runCatching {
 		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
 		val shortcuts = historyRepository.getList(0, manager.maxShortcutCountPerActivity)
@@ -74,6 +101,15 @@ class ShortcutsUpdater @Inject constructor(
 		it.printStackTraceDebug()
 	}
 
+	@RequiresApi(Build.VERSION_CODES.N_MR1)
+	private fun clearShortcuts() {
+		val manager = context.getSystemService(Context.SHORTCUT_SERVICE) as ShortcutManager
+		try {
+			manager.removeAllDynamicShortcuts()
+		} catch (_: IllegalStateException) {
+		}
+	}
+
 	private suspend fun buildShortcutInfo(manga: Manga): ShortcutInfoCompat.Builder {
 		val icon = runCatching {
 			val bmp = coil.execute(

app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt

@@ -134,6 +134,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val isExitConfirmationEnabled: Boolean
 		get() = prefs.getBoolean(KEY_EXIT_CONFIRM, false)
 
+	val isDynamicShortcutsEnabled: Boolean
+		get() = prefs.getBoolean(KEY_SHORTCUTS, true)
+
 	var sourcesOrder: List<String>
 		get() = prefs.getString(KEY_SOURCES_ORDER, null)
 			?.split('|')
@@ -317,6 +320,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_INCOGNITO_MODE = "incognito"
 		const val KEY_SYNC = "sync"
 		const val KEY_READER_BAR = "reader_bar"
+		const val KEY_SHORTCUTS = "dynamic_shortcuts"
 
 		// About
 		const val KEY_APP_UPDATE = "app_update"

app/src/main/java/org/koitharu/kotatsu/settings/HistorySettingsFragment.kt

@@ -13,6 +13,7 @@ import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.base.ui.BasePreferenceFragment
 import org.koitharu.kotatsu.core.network.AndroidCookieJar
+import org.koitharu.kotatsu.core.os.ShortcutsUpdater
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.local.data.CacheDir
 import org.koitharu.kotatsu.local.data.LocalStorageManager
@@ -41,8 +42,13 @@ class HistorySettingsFragment : BasePreferenceFragment(R.string.history_and_cach
 	@Inject
 	lateinit var cookieJar: AndroidCookieJar
 
+	@Inject
+	lateinit var shortcutsUpdater: ShortcutsUpdater
+
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
 		addPreferencesFromResource(R.xml.pref_history)
+		findPreference<Preference>(AppSettings.KEY_SHORTCUTS)?.isVisible =
+			shortcutsUpdater.isDynamicShortcutsAvailable()
 	}
 
 	override fun onViewCreated(view: View, savedInstanceState: Bundle?) {

app/src/main/res/values/strings.xml

@@ -377,4 +377,6 @@
 	<string name="import_will_start_soon">Import will start soon</string>
 	<string name="feed">Feed</string>
 	<string name="manga_error_description_pattern">Error details:&lt;br>&lt;tt>%1$s&lt;/tt>&lt;br>&lt;br>1. Try to &lt;a href="%2$s">open manga in a web browser&lt;/a> to ensure it is available on its source&lt;br>2. If it is available, send an error report to the developers.</string>
+	<string name="history_shortcuts">Show recent manga shortcuts</string>
+	<string name="history_shortcuts_summary">Make recent manga available by long pressing on application icon</string>
 </resources>

app/src/main/res/xml/pref_history.xml

@@ -13,6 +13,12 @@
 		android:summary="@string/exclude_nsfw_from_history_summary"
 		android:title="@string/exclude_nsfw_from_history" />
 
+	<SwitchPreferenceCompat
+		android:defaultValue="true"
+		android:key="dynamic_shortcuts"
+		android:summary="@string/history_shortcuts_summary"
+		android:title="@string/history_shortcuts" />
+
 	<PreferenceCategory android:title="@string/tracking">
 
 		<PreferenceScreen
@@ -56,4 +62,4 @@
 
 	</PreferenceCategory>
 
-</PreferenceScreen>
+</PreferenceScreen>