fix: Fix images disappearing after replying

packages/moxplatform_android/android/src/main/java/me/polynom/moxplatform_android/Constants.kt

@@ -13,13 +13,19 @@ const val REPLY_TEXT_KEY = "key_reply_text"
 const val MARK_AS_READ_ID_KEY = "notification_id"
 
 // Values for actions performed through the notification
-const val REPLY_ACTION = "reply";
+const val REPLY_ACTION = "reply"
 const val MARK_AS_READ_ACTION = "mark_as_read"
-const val TAP_ACTION = "tap";
+const val TAP_ACTION = "tap"
 
 // Extra data keys for the intents that reach the NotificationReceiver
-const val NOTIFICATION_EXTRA_JID_KEY = "jid";
+const val NOTIFICATION_EXTRA_JID_KEY = "jid"
-const val NOTIFICATION_EXTRA_ID_KEY = "notification_id";
+const val NOTIFICATION_EXTRA_ID_KEY = "notification_id"
+
+// Extra data keys for messages embedded inside the notification style
+const val NOTIFICATION_MESSAGE_EXTRA_MIME = "mime"
+const val NOTIFICATION_MESSAGE_EXTRA_PATH = "path"
+
+const val MOXPLATFORM_FILEPROVIDER_ID = "me.polynom.moxplatform_android.fileprovider"
 
 // TODO: Maybe try again to rewrite the entire plugin in Kotlin
 //const val METHOD_CHANNEL_KEY = "me.polynom.moxplatform_android"

packages/moxplatform_android/android/src/main/java/me/polynom/moxplatform_android/NotificationReceiver.kt

@@ -12,7 +12,9 @@ import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.app.Person
 import androidx.core.app.RemoteInput
+import androidx.core.content.FileProvider
 import me.polynom.moxplatform_android.Api.NotificationEvent
+import java.io.File
 import java.time.Instant
 
 class NotificationReceiver : BroadcastReceiver() {
@@ -83,11 +85,37 @@ class NotificationReceiver : BroadcastReceiver() {
             conversationTitle = recoveredStyle.conversationTitle
             // TODO: Use person
             recoveredStyle.messages.forEach {
-                addMessage(Notification.MessagingStyle.Message(it.text, it.timestamp, it.sender))
+                // Check if we have to request (or refresh) the content URI to be able to still
+                // see the embedded image.
+                val mime = it.extras.getString(NOTIFICATION_MESSAGE_EXTRA_MIME)
+                val path = it.extras.getString(NOTIFICATION_MESSAGE_EXTRA_PATH)
+                val message = Notification.MessagingStyle.Message(it.text, it.timestamp, it.sender)
+                if (mime != null && path != null) {
+                    // Request a new URI from the file provider to ensure we can still see the image
+                    // in the notification
+                    val fileUri = FileProvider.getUriForFile(
+                        context,
+                        MOXPLATFORM_FILEPROVIDER_ID,
+                        File(path),
+                    )
+                    message.setData(
+                        mime,
+                        fileUri,
+                    )
+
+                    // As we're creating a new message, also recreate the additional metadata
+                    message.extras.apply {
+                        putString(NOTIFICATION_MESSAGE_EXTRA_MIME, mime)
+                        putString(NOTIFICATION_MESSAGE_EXTRA_PATH, path)
                     }
                 }
 
-        // TODO: Images get lost here? Do we have to request a new content URI?
+                // Append the old message
+                addMessage(message)
+            }
+        }
+
+        // Append our new message
         newStyle.addMessage(
             Notification.MessagingStyle.Message(
                 replyPayload!!,
@@ -96,6 +124,7 @@ class NotificationReceiver : BroadcastReceiver() {
             )
         )
 
+        // Post the new notification
         val recoveredBuilder = Notification.Builder.recoverBuilder(context, notification).apply {
             style = newStyle
             setOnlyAlertOnce(true)

packages/moxplatform_android/android/src/main/java/me/polynom/moxplatform_android/Notifications.kt

@@ -110,10 +110,17 @@ fun showMessagingNotification(context: Context, notification: Api.MessagingNotif
         if (message.content.mime != null && message.content.path != null) {
             val fileUri = FileProvider.getUriForFile(
                 context,
-                "me.polynom.moxplatform_android.fileprovider",
+                MOXPLATFORM_FILEPROVIDER_ID,
                 File(message.content.path),
             )
-            msg.setData(message.content.mime, fileUri)
+            msg.apply {
+                setData(message.content.mime, fileUri)
+
+                extras.apply {
+                    putString(NOTIFICATION_MESSAGE_EXTRA_MIME, message.content.mime)
+                    putString(NOTIFICATION_MESSAGE_EXTRA_PATH, message.content.path)
+                }
+            }
         }
 
         // Append the message