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fixing notifications not dismissing when the in memory state becomes out of sync 

- lazily loads the initial notification state as we rely on a current session to exist
- extracts all the notification state manipulation to a separate state class
This commit is contained in:
Adam Brown 2021-11-18 12:43:11 +00:00
parent 4b6afb3e63
commit 940fe634c4
4 changed files with 155 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
vector/src/main/java/im/vector/app/VectorApplication.kt
View File

@ -175,8 +175,7 @@ class VectorApplication :
}
override fun onPause(owner: LifecycleOwner) {
Timber.i("App entered background") // call persistInfo
notificationDrawerManager.persistInfo()
Timber.i("App entered background")
FcmHelper.onEnterBackground(appContext, vectorPreferences, activeSessionHolder)
}
})

1
vector/src/main/java/im/vector/app/features/MainActivity.kt
View File

@ -116,7 +116,6 @@ class MainActivity : VectorBaseActivity<ActivityMainBinding>(), UnlockedActivity
private fun clearNotifications() {
// Dismiss all notifications
notificationDrawerManager.clearAllEvents()
notificationDrawerManager.persistInfo()
// Also clear the dynamic shortcuts
shortcutsHandler.clearShortcuts()

130
vector/src/main/java/im/vector/app/features/notifications/NotificationDrawerManager.kt
View File

@ -29,8 +29,6 @@ import org.matrix.android.sdk.api.session.Session
import org.matrix.android.sdk.api.session.content.ContentUrlResolver
import org.matrix.android.sdk.api.util.toMatrixItem
import timber.log.Timber
import java.io.File
import java.io.FileOutputStream
import javax.inject.Inject
import javax.inject.Singleton
@ -50,42 +48,24 @@ class NotificationDrawerManager @Inject constructor(private val context: Context
private val handlerThread: HandlerThread = HandlerThread("NotificationDrawerManager", Thread.MIN_PRIORITY)
private var backgroundHandler: Handler
init {
handlerThread.start()
backgroundHandler = Handler(handlerThread.looper)
}
/**
* The notifiable events to render
* this is our source of truth for notifications, any changes to this list will be rendered as notifications
* when events are removed the previously rendered notifications will be cancelled
* when adding or updating, the notifications will be notified
*
* Events are unique by their properties, we should be careful not to insert multiple events with the same event-id
*/
private val queuedEvents = loadEventInfo()
/**
* The last known rendered notifiable events
* we keep track of them in order to know which events have been removed from the eventList
* allowing us to cancel any notifications previous displayed by now removed events
*/
private var renderedEvents = emptyList<ProcessedEvent<NotifiableEvent>>()
private val avatarSize = context.resources.getDimensionPixelSize(R.dimen.profile_avatar_size)
private var currentRoomId: String? = null
// TODO Multi-session: this will have to be improved
private val currentSession: Session?
get() = activeSessionDataSource.currentValue?.orNull()
/**
* Lazily initializes the NotificationState as we rely on having a current session in order to fetch the persisted queue of events
*/
private val notificationState by lazy { NotificationState.createInitialNotificationState(context, currentSession) }
private val avatarSize = context.resources.getDimensionPixelSize(R.dimen.profile_avatar_size)
private var currentRoomId: String? = null
private val firstThrottler = FirstThrottler(200)
private var useCompleteNotificationFormat = vectorPreferences.useCompleteNotificationFormat()
/**
* An in memory FIFO cache of the seen events.
* Acts as a notification debouncer to stop already dismissed push notifications from
* displaying again when the /sync response is delayed.
*/
private val seenEventIds = CircularCache.create<String>(cacheSize = 25)
init {
handlerThread.start()
backgroundHandler = Handler(handlerThread.looper)
}
/**
Should be called as soon as a new event is ready to be displayed.
@ -106,7 +86,7 @@ class NotificationDrawerManager @Inject constructor(private val context: Context
Timber.d("onNotifiableEventReceived(): is push: ${notifiableEvent.canBeReplaced}")
}
add(notifiableEvent, seenEventIds)
add(notifiableEvent, notificationState.seenEventIds)
}
/**
@ -142,14 +122,12 @@ class NotificationDrawerManager @Inject constructor(private val context: Context
}
fun updateEvents(action: NotificationDrawerManager.(NotificationEventQueue) -> Unit) {
synchronized(queuedEvents) {
action(this, queuedEvents)
notificationState.updateQueuedEvents(this) { queuedEvents, _ ->
action(queuedEvents)
}
refreshNotificationDrawer()
}
private var firstThrottler = FirstThrottler(200)
private fun refreshNotificationDrawer() {
// Implement last throttler
val canHandle = firstThrottler.canHandle()
@ -171,85 +149,43 @@ class NotificationDrawerManager @Inject constructor(private val context: Context
@WorkerThread
private fun refreshNotificationDrawerBg() {
Timber.v("refreshNotificationDrawerBg()")
val eventsToRender = synchronized(queuedEvents) {
val eventsToRender = notificationState.updateQueuedEvents(this) { queuedEvents, renderedEvents ->
notifiableEventProcessor.process(queuedEvents.rawEvents(), currentRoomId, renderedEvents).also {
queuedEvents.clearAndAdd(it.onlyKeptEvents())
}
}
if (renderedEvents == eventsToRender) {
if (notificationState.hasAlreadyRendered(eventsToRender)) {
Timber.d("Skipping notification update due to event list not changing")
} else {
renderedEvents = eventsToRender
notificationState.clearAndAddRenderedEvents(eventsToRender)
val session = currentSession ?: return
val user = session.getUser(session.myUserId)
// myUserDisplayName cannot be empty else NotificationCompat.MessagingStyle() will crash
val myUserDisplayName = user?.toMatrixItem()?.getBestName() ?: session.myUserId
val myUserAvatarUrl = session.contentUrlResolver().resolveThumbnail(
contentUrl = user?.avatarUrl,
width = avatarSize,
height = avatarSize,
method = ContentUrlResolver.ThumbnailMethod.SCALE
)
notificationRenderer.render(session.myUserId, myUserDisplayName, myUserAvatarUrl, useCompleteNotificationFormat, eventsToRender)
renderEvents(session, eventsToRender)
notificationState.persistState(context, session)
}
}
private fun renderEvents(session: Session, eventsToRender: List<ProcessedEvent<NotifiableEvent>>) {
val user = session.getUser(session.myUserId)
// myUserDisplayName cannot be empty else NotificationCompat.MessagingStyle() will crash
val myUserDisplayName = user?.toMatrixItem()?.getBestName() ?: session.myUserId
val myUserAvatarUrl = session.contentUrlResolver().resolveThumbnail(
contentUrl = user?.avatarUrl,
width = avatarSize,
height = avatarSize,
method = ContentUrlResolver.ThumbnailMethod.SCALE
)
notificationRenderer.render(session.myUserId, myUserDisplayName, myUserAvatarUrl, useCompleteNotificationFormat, eventsToRender)
}
fun shouldIgnoreMessageEventInRoom(roomId: String?): Boolean {
return currentRoomId != null && roomId == currentRoomId
}
fun persistInfo() {
synchronized(queuedEvents) {
if (queuedEvents.isEmpty()) {
deleteCachedRoomNotifications()
return
}
try {
val file = File(context.applicationContext.cacheDir, ROOMS_NOTIFICATIONS_FILE_NAME)
if (!file.exists()) file.createNewFile()
FileOutputStream(file).use {
currentSession?.securelyStoreObject(queuedEvents.rawEvents(), KEY_ALIAS_SECRET_STORAGE, it)
}
} catch (e: Throwable) {
Timber.e(e, "## Failed to save cached notification info")
}
}
}
private fun loadEventInfo(): NotificationEventQueue {
try {
val file = File(context.applicationContext.cacheDir, ROOMS_NOTIFICATIONS_FILE_NAME)
if (file.exists()) {
file.inputStream().use {
val events: ArrayList<NotifiableEvent>? = currentSession?.loadSecureSecret(it, KEY_ALIAS_SECRET_STORAGE)
if (events != null) {
return NotificationEventQueue(events.toMutableList())
}
}
}
} catch (e: Throwable) {
Timber.e(e, "## Failed to load cached notification info")
}
return NotificationEventQueue()
}
private fun deleteCachedRoomNotifications() {
val file = File(context.applicationContext.cacheDir, ROOMS_NOTIFICATIONS_FILE_NAME)
if (file.exists()) {
file.delete()
}
}
companion object {
const val SUMMARY_NOTIFICATION_ID = 0
const val ROOM_MESSAGES_NOTIFICATION_ID = 1
const val ROOM_EVENT_NOTIFICATION_ID = 2
const val ROOM_INVITATION_NOTIFICATION_ID = 3
// TODO Mutliaccount
private const val ROOMS_NOTIFICATIONS_FILE_NAME = "im.vector.notifications.cache"
private const val KEY_ALIAS_SECRET_STORAGE = "notificationMgr"
}
}

121
vector/src/main/java/im/vector/app/features/notifications/NotificationState.kt Normal file
View File

@ -0,0 +1,121 @@
/*
* Copyright (c) 2021 New Vector Ltd
*
* 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 im.vector.app.features.notifications
import android.content.Context
import org.matrix.android.sdk.api.session.Session
import timber.log.Timber
import java.io.File
import java.io.FileOutputStream
// TODO Mutliaccount
private const val ROOMS_NOTIFICATIONS_FILE_NAME = "im.vector.notifications.cache"
private const val KEY_ALIAS_SECRET_STORAGE = "notificationMgr"
class NotificationState(
/**
* The notifiable events to render
* this is our source of truth for notifications, any changes to this list will be rendered as notifications
* when events are removed the previously rendered notifications will be cancelled
* when adding or updating, the notifications will be notified
*
* Events are unique by their properties, we should be careful not to insert multiple events with the same event-id
*/
private val queuedEvents: NotificationEventQueue,
/**
* The last known rendered notifiable events
* we keep track of them in order to know which events have been removed from the eventList
* allowing us to cancel any notifications previous displayed by now removed events
*/
private val renderedEvents: MutableList<ProcessedEvent<NotifiableEvent>>,
/**
* An in memory FIFO cache of the seen events.
* Acts as a notification debouncer to stop already dismissed push notifications from
* displaying again when the /sync response is delayed.
*/
val seenEventIds: CircularCache<String>
) {
fun <T> updateQueuedEvents(drawerManager: NotificationDrawerManager, action: NotificationDrawerManager.(NotificationEventQueue, List<ProcessedEvent<NotifiableEvent>>) -> T): T {
return synchronized(queuedEvents) {
action(drawerManager, queuedEvents, renderedEvents)
}
}
fun clearAndAddRenderedEvents(eventsToRender: List<ProcessedEvent<NotifiableEvent>>) {
renderedEvents.clear()
renderedEvents.addAll(eventsToRender)
}
fun hasAlreadyRendered(eventsToRender: List<ProcessedEvent<NotifiableEvent>>) = renderedEvents == eventsToRender
fun persistState(context: Context, currentSession: Session) {
synchronized(queuedEvents) {
if (queuedEvents.isEmpty()) {
deleteCachedRoomNotifications(context)
return
}
try {
val file = File(context.applicationContext.cacheDir, ROOMS_NOTIFICATIONS_FILE_NAME)
if (!file.exists()) file.createNewFile()
FileOutputStream(file).use {
currentSession.securelyStoreObject(queuedEvents.rawEvents(), KEY_ALIAS_SECRET_STORAGE, it)
}
} catch (e: Throwable) {
Timber.e(e, "## Failed to save cached notification info")
}
}
}
private fun deleteCachedRoomNotifications(context: Context) {
val file = File(context.applicationContext.cacheDir, ROOMS_NOTIFICATIONS_FILE_NAME)
if (file.exists()) {
file.delete()
}
}
companion object {
fun createInitialNotificationState(context: Context, currentSession: Session?): NotificationState {
val queuedEvents = loadEventInfo(context, currentSession)
return NotificationState(
queuedEvents = queuedEvents,
renderedEvents = queuedEvents.rawEvents().map { ProcessedEvent(ProcessedEvent.Type.KEEP, it) }.toMutableList(),
seenEventIds = CircularCache.create(cacheSize = 25)
)
}
private fun loadEventInfo(context: Context, currentSession: Session?): NotificationEventQueue {
try {
val file = File(context.applicationContext.cacheDir, ROOMS_NOTIFICATIONS_FILE_NAME)
if (file.exists()) {
file.inputStream().use {
val events: ArrayList<NotifiableEvent>? = currentSession?.loadSecureSecret(it, KEY_ALIAS_SECRET_STORAGE)
if (events != null) {
return NotificationEventQueue(events.toMutableList())
}
}
}
} catch (e: Throwable) {
Timber.e(e, "## Failed to load cached notification info")
}
return NotificationEventQueue()
}
}
}