Reorganize and group modules

data/notifications/src/main/AndroidManifest.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application>
+        <service
+            android:name=".NotificationService"
+            android:exported="true"
+            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
+            <intent-filter>
+                <action android:name="android.service.notification.NotificationListenerService" />
+            </intent-filter>
+        </service>
+    </application>
+</manifest>

data/notifications/src/main/java/de/mm20/launcher2/notifications/Module.kt

@@ -0,0 +1,7 @@
+package de.mm20.launcher2.notifications
+
+import org.koin.dsl.module
+
+val notificationsModule = module {
+    single<NotificationRepository> { NotificationRepositoryImpl() }
+}

data/notifications/src/main/java/de/mm20/launcher2/notifications/NotificationRepository.kt

@@ -0,0 +1,63 @@
+package de.mm20.launcher2.notifications
+
+import android.service.notification.StatusBarNotification
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+
+interface NotificationRepository {
+    val notifications: Flow<List<StatusBarNotification>>
+
+    /**
+     * Internal use only. Used by NotificationService.
+     */
+    fun setNotifications(notifications: List<StatusBarNotification>)
+
+    /**
+     * Internal use only. Used by NotificationService.
+     */
+    fun postNotification(notification: StatusBarNotification)
+
+    /**
+     * Internal use only. Used by NotificationService.
+     */
+    fun removeNotification(notification: StatusBarNotification)
+
+    /**
+     * Cancel a notification
+     */
+    fun cancelNotification(notification: StatusBarNotification)
+}
+
+internal class NotificationRepositoryImpl : NotificationRepository {
+    private val scope = CoroutineScope(Job() + Dispatchers.Default)
+    override val notifications: MutableStateFlow<List<StatusBarNotification>> = MutableStateFlow(
+        emptyList()
+    )
+
+    override fun setNotifications(notifications: List<StatusBarNotification>) {
+        this.notifications.value = notifications
+    }
+
+    override fun postNotification(notification: StatusBarNotification) {
+        notifications.value = notifications.value.filter { !isEqual(it, notification) } + notification
+    }
+
+    override fun removeNotification(notification: StatusBarNotification) {
+        notifications.value = notifications.value.filter { !isEqual(it, notification) }
+    }
+
+    private fun isEqual(
+        notification1: StatusBarNotification,
+        notification2: StatusBarNotification
+    ): Boolean {
+        return notification1.key == notification2.key
+    }
+
+    override fun cancelNotification(notification: StatusBarNotification) {
+        NotificationService.getInstance()?.cancelNotification(notification.key)
+    }
+
+}

data/notifications/src/main/java/de/mm20/launcher2/notifications/NotificationService.kt

@@ -0,0 +1,62 @@
+package de.mm20.launcher2.notifications
+
+import android.app.Service
+import android.content.Intent
+import android.service.notification.NotificationListenerService
+import android.service.notification.StatusBarNotification
+import android.util.Log
+import de.mm20.launcher2.permissions.PermissionsManager
+import org.koin.android.ext.android.inject
+import java.lang.ref.WeakReference
+
+class NotificationService : NotificationListenerService() {
+
+    private val notificationRepository: NotificationRepository by inject()
+
+    private val permissionsManager: PermissionsManager by inject()
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        return Service.START_STICKY
+    }
+
+    override fun onListenerConnected() {
+        super.onListenerConnected()
+        Log.d("MM20", "Notification listener connected")
+        permissionsManager.reportNotificationListenerState(true)
+        instance = WeakReference(this)
+        val notifications = getNotifications().sortedBy { it.postTime }
+        notificationRepository.setNotifications(notifications)
+    }
+
+    private fun getNotifications(): Array<StatusBarNotification> {
+        return try {
+            activeNotifications
+        } catch (e: SecurityException) {
+            emptyArray()
+        }
+    }
+
+    override fun onNotificationPosted(sbn: StatusBarNotification) {
+        notificationRepository.postNotification(sbn)
+    }
+
+    override fun onNotificationRemoved(sbn: StatusBarNotification) {
+        super.onNotificationRemoved(sbn)
+
+        notificationRepository.removeNotification(sbn)
+    }
+
+    override fun onListenerDisconnected() {
+        super.onListenerDisconnected()
+        permissionsManager.reportNotificationListenerState(false)
+        notificationRepository.setNotifications(emptyList())
+        Log.d("MM20", "Notification listener disconnected")
+    }
+
+    companion object {
+        private var instance: WeakReference<NotificationService>? = null
+        internal fun getInstance(): NotificationService? {
+            return instance?.get()
+        }
+    }
+}