Address API23 notification issues and update when conversation content changes.

app/src/main/java/org/thoughtcrime/securesms/notifications/v2/MessageNotifierV2.kt

@@ -48,6 +48,7 @@ class MessageNotifierV2(context: Application) : MessageNotifier {
   @Volatile private var lastScheduledReminder: Long = 0
   @Volatile private var previousLockedStatus: Boolean = KeyCachingService.isLocked(context)
   @Volatile private var previousPrivacyPreference: NotificationPrivacyPreference = TextSecurePreferences.getNotificationPrivacy(context)
+  @Volatile private var previousState: NotificationStateV2 = NotificationStateV2.EMPTY
 
   private val threadReminders: MutableMap<Long, Reminder> = ConcurrentHashMap()
   private val stickyThreads: MutableMap<Long, StickyThread> = mutableMapOf()
@@ -167,9 +168,11 @@ class MessageNotifierV2(context: Application) : MessageNotifier {
       defaultBubbleState = defaultBubbleState,
       lastAudibleNotification = lastAudibleNotification,
       notificationConfigurationChanged = notificationConfigurationChanged,
-      alertOverrides = alertOverrides
+      alertOverrides = alertOverrides,
+      previousState = previousState
     )
 
+    previousState = state
     lastAudibleNotification = System.currentTimeMillis()
 
     updateReminderTimestamps(context, alertOverrides, threadsThatAlerted)
@@ -281,7 +284,7 @@ private fun StatusBarNotification.isMessageNotification(): Boolean {
 }
 
 private fun NotificationManager.getDisplayedNotificationIds(): Result<Set<Int>> {
-  if (Build.VERSION.SDK_INT < 23) {
+  if (Build.VERSION.SDK_INT < 24) {
     return Result.failure(UnsupportedOperationException("SDK level too low"))
   }
 
@@ -294,7 +297,7 @@ private fun NotificationManager.getDisplayedNotificationIds(): Result<Set<Int>>
 }
 
 private fun NotificationManager.cancelOrphanedNotifications(context: Context, state: NotificationStateV2, stickyNotifications: Set<Int>) {
-  if (Build.VERSION.SDK_INT < 23) {
+  if (Build.VERSION.SDK_INT < 24) {
     return
   }
 

app/src/main/java/org/thoughtcrime/securesms/notifications/v2/NotificationBuilder.kt

@@ -68,7 +68,7 @@ sealed class NotificationBuilder(protected val context: Context) {
   abstract fun addMarkAsReadActionActual(state: NotificationStateV2)
   abstract fun setPriority(priority: Int)
   abstract fun setAlarms(recipient: Recipient?)
-  abstract fun setTicker(ticker: CharSequence)
+  abstract fun setTicker(ticker: CharSequence?)
   abstract fun addTurnOffJoinedNotificationsAction(pendingIntent: PendingIntent)
   abstract fun setAutoCancel(autoCancel: Boolean)
   abstract fun build(): Notification
@@ -100,8 +100,8 @@ sealed class NotificationBuilder(protected val context: Context) {
     }
   }
 
-  fun setWhen(notificationItem: NotificationItemV2) {
-    if (notificationItem.timestamp != 0L) {
+  fun setWhen(notificationItem: NotificationItemV2?) {
+    if (notificationItem != null && notificationItem.timestamp != 0L) {
       setWhen(notificationItem.timestamp)
     }
   }
@@ -136,12 +136,12 @@ sealed class NotificationBuilder(protected val context: Context) {
     }
   }
 
-  fun setSummaryContentText(recipient: Recipient) {
-    if (privacy.isDisplayContact) {
+  fun setSummaryContentText(recipient: Recipient?) {
+    if (privacy.isDisplayContact && recipient != null) {
       setContentText(context.getString(R.string.MessageNotifier_most_recent_from_s, recipient.getDisplayName(context)))
     }
 
-    recipient.notificationChannel?.let { channel -> setChannelId(channel) }
+    recipient?.notificationChannel?.let { channel -> setChannelId(channel) }
   }
 
   fun setLights() {
@@ -244,8 +244,8 @@ sealed class NotificationBuilder(protected val context: Context) {
 
       val self: PersonCompat = PersonCompat.Builder()
         .setBot(false)
-        .setName(Recipient.self().getDisplayName(context))
-        .setIcon(Recipient.self().getContactDrawable(context).toLargeBitmap(context).toIconCompat())
+        .setName(if (includeShortcut) Recipient.self().getDisplayName(context) else context.getString(R.string.SingleRecipientNotificationBuilder_you))
+        .setIcon(if (includeShortcut) Recipient.self().getContactDrawable(context).toLargeBitmap(context).toIconCompat() else null)
         .build()
 
       val messagingStyle: NotificationCompat.MessagingStyle = NotificationCompat.MessagingStyle(self)
@@ -332,7 +332,7 @@ sealed class NotificationBuilder(protected val context: Context) {
     }
 
     override fun setGroup(group: String) {
-      if (Build.VERSION.SDK_INT < 23) {
+      if (Build.VERSION.SDK_INT < 24) {
         return
       }
 
@@ -340,7 +340,7 @@ sealed class NotificationBuilder(protected val context: Context) {
     }
 
     override fun setGroupAlertBehavior(behavior: Int) {
-      if (Build.VERSION.SDK_INT < 23) {
+      if (Build.VERSION.SDK_INT < 24) {
         return
       }
 
@@ -375,7 +375,7 @@ sealed class NotificationBuilder(protected val context: Context) {
       builder.setContentText(contentText)
     }
 
-    override fun setTicker(ticker: CharSequence) {
+    override fun setTicker(ticker: CharSequence?) {
       builder.setTicker(ticker)
     }
 
@@ -489,8 +489,8 @@ sealed class NotificationBuilder(protected val context: Context) {
     override fun addMessagesActual(conversation: NotificationConversation, includeShortcut: Boolean) {
       val self: Person = Person.Builder()
         .setBot(false)
-        .setName(Recipient.self().getDisplayName(context))
-        .setIcon(Recipient.self().getContactDrawable(context).toLargeBitmap(context).toIcon())
+        .setName(if (includeShortcut) Recipient.self().getDisplayName(context) else context.getString(R.string.SingleRecipientNotificationBuilder_you))
+        .setIcon(if (includeShortcut) Recipient.self().getContactDrawable(context).toLargeBitmap(context).toIcon() else null)
         .build()
 
       val messagingStyle: Notification.MessagingStyle = Notification.MessagingStyle(self)
@@ -598,7 +598,7 @@ sealed class NotificationBuilder(protected val context: Context) {
       builder.setContentText(contentText)
     }
 
-    override fun setTicker(ticker: CharSequence) {
+    override fun setTicker(ticker: CharSequence?) {
       builder.setTicker(ticker)
     }
 

app/src/main/java/org/thoughtcrime/securesms/notifications/v2/NotificationConversation.kt

@@ -88,14 +88,10 @@ data class NotificationConversation(
   }
 
   fun getConversationTitle(context: Context): CharSequence? {
-    if (isGroup) {
-      return if (TextSecurePreferences.getNotificationPrivacy(context).isDisplayContact) {
-        recipient.getDisplayName(context)
-      } else {
-        context.getString(R.string.SingleRecipientNotificationBuilder_signal)
-      }
+    if (TextSecurePreferences.getNotificationPrivacy(context).isDisplayContact) {
+      return if (isGroup) recipient.getDisplayName(context) else null
     }
-    return null
+    return context.getString(R.string.SingleRecipientNotificationBuilder_signal)
   }
 
   fun getWhen(): Long {
@@ -114,6 +110,14 @@ data class NotificationConversation(
     }
   }
 
+  fun hasSameContent(other: NotificationConversation?): Boolean {
+    if (other == null) {
+      return false
+    }
+
+    return messageCount == other.messageCount && notificationItems.zip(other.notificationItems).all { (item, otherItem) -> item.hasSameContent(otherItem) }
+  }
+
   fun getPendingIntent(context: Context): PendingIntent {
     val intent: Intent = ConversationIntents.createBuilder(context, recipient.id, threadId)
       .withStartingPosition(mostRecentNotification.getStartingPosition(context))

app/src/main/java/org/thoughtcrime/securesms/notifications/v2/NotificationExtensions.kt

@@ -1,10 +1,12 @@
 package org.thoughtcrime.securesms.notifications.v2
 
+import android.app.NotificationManager
 import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.drawable.Drawable
 import android.net.Uri
+import android.os.Build
 import com.bumptech.glide.load.MultiTransformation
 import com.bumptech.glide.load.Transformation
 import com.bumptech.glide.load.engine.DiskCacheStrategy
@@ -17,6 +19,7 @@ import org.thoughtcrime.securesms.contacts.avatars.ProfileContactPhoto
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies
 import org.thoughtcrime.securesms.mms.DecryptableStreamUriLoader.DecryptableUri
 import org.thoughtcrime.securesms.mms.GlideApp
+import org.thoughtcrime.securesms.notifications.NotificationIds
 import org.thoughtcrime.securesms.recipients.Recipient
 import org.thoughtcrime.securesms.util.BitmapUtil
 import org.thoughtcrime.securesms.util.BlurTransformation
@@ -84,3 +87,13 @@ fun Intent.makeUniqueToPreventMerging(): Intent {
 fun Recipient.getFallback(context: Context): FallbackContactPhoto {
   return GeneratedContactPhoto(getDisplayName(context), R.drawable.ic_profile_outline_40)
 }
+
+fun NotificationManager.isDisplayingSummaryNotification(): Boolean {
+  if (Build.VERSION.SDK_INT > 23) {
+    try {
+      return activeNotifications.any { notification -> notification.id == NotificationIds.MESSAGE_SUMMARY }
+    } catch (e: Throwable) {
+    }
+  }
+  return false
+}

app/src/main/java/org/thoughtcrime/securesms/notifications/v2/NotificationFactory.kt

@@ -2,7 +2,6 @@ package org.thoughtcrime.securesms.notifications.v2
 
 import android.annotation.TargetApi
 import android.app.Notification
-import android.app.NotificationManager
 import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
@@ -46,15 +45,16 @@ object NotificationFactory {
     defaultBubbleState: BubbleUtil.BubbleState,
     lastAudibleNotification: Long,
     notificationConfigurationChanged: Boolean,
-    alertOverrides: Set<Long>
+    alertOverrides: Set<Long>,
+    previousState: NotificationStateV2
   ): Set<Long> {
     if (state.isEmpty) {
       Log.d(TAG, "State is empty, bailing")
       return emptySet()
     }
 
-    val nonVisibleThreadCount = state.conversations.count { it.threadId != visibleThreadId }
-    return if (Build.VERSION.SDK_INT < 23) {
+    val nonVisibleThreadCount: Int = state.conversations.count { it.threadId != visibleThreadId }
+    return if (Build.VERSION.SDK_INT < 24) {
       notify19(
         context = context,
         state = state,
@@ -66,7 +66,7 @@ object NotificationFactory {
         nonVisibleThreadCount = nonVisibleThreadCount
       )
     } else {
-      notify23(
+      notify24(
         context = context,
         state = state,
         visibleThreadId = visibleThreadId,
@@ -75,7 +75,8 @@ object NotificationFactory {
         lastAudibleNotification = lastAudibleNotification,
         notificationConfigurationChanged = notificationConfigurationChanged,
         alertOverrides = alertOverrides,
-        nonVisibleThreadCount = nonVisibleThreadCount
+        nonVisibleThreadCount = nonVisibleThreadCount,
+        previousState = previousState
       )
     }
   }
@@ -121,8 +122,8 @@ object NotificationFactory {
     return threadsThatNewlyAlerted
   }
 
-  @TargetApi(23)
-  private fun notify23(
+  @TargetApi(24)
+  private fun notify24(
     context: Context,
     state: NotificationStateV2,
     visibleThreadId: Long,
@@ -131,7 +132,8 @@ object NotificationFactory {
     lastAudibleNotification: Long,
     notificationConfigurationChanged: Boolean,
     alertOverrides: Set<Long>,
-    nonVisibleThreadCount: Int
+    nonVisibleThreadCount: Int,
+    previousState: NotificationStateV2
   ): Set<Long> {
     val threadsThatNewlyAlerted: MutableSet<Long> = mutableSetOf()
 
@@ -139,7 +141,7 @@ object NotificationFactory {
       if (conversation.threadId == visibleThreadId && conversation.hasNewNotifications()) {
         Log.internal().i(TAG, "Thread is visible, notifying in thread. notificationId: ${conversation.notificationId}")
         notifyInThread(context, conversation.recipient, lastAudibleNotification)
-      } else if (notificationConfigurationChanged || conversation.hasNewNotifications() || alertOverrides.contains(conversation.threadId)) {
+      } else if (notificationConfigurationChanged || conversation.hasNewNotifications() || alertOverrides.contains(conversation.threadId) || !conversation.hasSameContent(previousState.getConversation(conversation.threadId))) {
         if (conversation.hasNewNotifications()) {
           threadsThatNewlyAlerted += conversation.threadId
         }
@@ -206,7 +208,7 @@ object NotificationFactory {
       builder.addTurnOffJoinedNotificationsAction(conversation.getTurnOffJoinedNotificationsIntent(context))
     }
 
-    val notificationId: Int = if (Build.VERSION.SDK_INT < 23) NotificationIds.MESSAGE_SUMMARY else conversation.notificationId
+    val notificationId: Int = if (Build.VERSION.SDK_INT < 24) NotificationIds.MESSAGE_SUMMARY else conversation.notificationId
 
     NotificationManagerCompat.from(context).safelyNotify(context, conversation.recipient, notificationId, builder.build())
   }
@@ -240,7 +242,7 @@ object NotificationFactory {
       setPriority(TextSecurePreferences.getNotificationPriority(context))
       setLights()
       setAlarms(state.mostRecentSender)
-      setTicker(state.mostRecentNotification.getStyledPrimaryText(context, true))
+      setTicker(state.mostRecentNotification?.getStyledPrimaryText(context, true))
     }
 
     Log.d(TAG, "showing summary notification")
@@ -313,16 +315,6 @@ object NotificationFactory {
     NotificationManagerCompat.from(context).safelyNotify(context, recipient, threadId.toInt(), builder.build())
   }
 
-  private fun NotificationManager.isDisplayingSummaryNotification(): Boolean {
-    if (Build.VERSION.SDK_INT >= 23) {
-      try {
-        return activeNotifications.any { notification -> notification.id == NotificationIds.MESSAGE_SUMMARY }
-      } catch (e: Throwable) {
-      }
-    }
-    return false
-  }
-
   private fun NotificationManagerCompat.safelyNotify(context: Context, threadRecipient: Recipient?, notificationId: Int, notification: Notification) {
     try {
       notify(notificationId, notification)

app/src/main/java/org/thoughtcrime/securesms/notifications/v2/NotificationItemV2.kt

@@ -90,7 +90,7 @@ sealed class NotificationItemV2(val threadRecipient: Recipient, protected val re
     return if (TextSecurePreferences.getNotificationPrivacy(context).isDisplayContact) {
       individualRecipient.getDisplayName(context)
     } else {
-      ""
+      context.getString(R.string.SingleRecipientNotificationBuilder_signal)
     }
   }
 
@@ -133,6 +133,16 @@ sealed class NotificationItemV2(val threadRecipient: Recipient, protected val re
     }
   }
 
+  fun hasSameContent(other: NotificationItemV2): Boolean {
+    return timestamp == other.timestamp &&
+      id == other.id &&
+      isMms == other.isMms &&
+      individualRecipient == other.individualRecipient &&
+      individualRecipient.hasSameContent(other.individualRecipient) &&
+      slideDeck?.thumbnailSlide?.isInProgress == other.slideDeck?.thumbnailSlide?.isInProgress &&
+      record.isRemoteDelete == other.record.isRemoteDelete
+  }
+
   private fun CharSequence?.trimToDisplayLength(): CharSequence {
     val text: CharSequence = this ?: ""
     return if (text.length <= AbstractNotificationBuilder.MAX_DISPLAY_LENGTH) {

app/src/main/java/org/thoughtcrime/securesms/notifications/v2/NotificationStateV2.kt

@@ -33,16 +33,20 @@ data class NotificationStateV2(val conversations: List<NotificationConversation>
       .toSet()
   }
 
-  val mostRecentNotification: NotificationItemV2
-    get() = notificationItems.last()
+  val mostRecentNotification: NotificationItemV2?
+    get() = notificationItems.lastOrNull()
 
-  val mostRecentSender: Recipient
-    get() = mostRecentNotification.individualRecipient
+  val mostRecentSender: Recipient?
+    get() = mostRecentNotification?.individualRecipient
 
   fun getNonVisibleConversation(visibleThreadId: Long): List<NotificationConversation> {
     return conversations.filterNot { it.threadId == visibleThreadId }
   }
 
+  fun getConversation(threadId: Long): NotificationConversation? {
+    return conversations.firstOrNull { it.threadId == threadId }
+  }
+
   fun getDeleteIntent(context: Context): PendingIntent? {
     val ids = LongArray(messageCount)
     val mms = BooleanArray(ids.size)

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

@@ -1751,6 +1751,7 @@
     <string name="SingleRecipientNotificationBuilder_signal">Signal</string>
     <string name="SingleRecipientNotificationBuilder_new_message">New message</string>
     <string name="SingleRecipientNotificationBuilder_message_request">Message request</string>
+    <string name="SingleRecipientNotificationBuilder_you">You</string>
 
     <!-- ThumbnailView -->
     <string name="ThumbnailView_Play_video_description">Play video</string>