Allow to undo last chat message swipe removal

app/src/main/java/org/linphone/activities/SnackBarActivity.kt

@@ -21,5 +21,6 @@ package org.linphone.activities
 
 interface SnackBarActivity {
     fun showSnackBar(resourceId: Int)
+    fun showSnackBar(resourceId: Int, action: Int, listener: () -> Unit)
     fun showSnackBar(message: String)
 }

app/src/main/java/org/linphone/activities/assistant/AssistantActivity.kt

@@ -49,6 +49,15 @@ class AssistantActivity : GenericActivity(), SnackBarActivity {
         Snackbar.make(coordinator, resourceId, Snackbar.LENGTH_LONG).show()
     }
 
+    override fun showSnackBar(resourceId: Int, action: Int, listener: () -> Unit) {
+        Snackbar
+            .make(findViewById(R.id.coordinator), resourceId, Snackbar.LENGTH_LONG)
+            .setAction(action) {
+                listener()
+            }
+            .show()
+    }
+
     override fun showSnackBar(message: String) {
         Snackbar.make(coordinator, message, Snackbar.LENGTH_LONG).show()
     }

app/src/main/java/org/linphone/activities/main/MainActivity.kt

@@ -181,6 +181,16 @@ class MainActivity : GenericActivity(), SnackBarActivity, NavController.OnDestin
         Snackbar.make(findViewById(R.id.coordinator), resourceId, Snackbar.LENGTH_LONG).show()
     }
 
+    override fun showSnackBar(resourceId: Int, action: Int, listener: () -> Unit) {
+        Snackbar
+            .make(findViewById(R.id.coordinator), resourceId, Snackbar.LENGTH_LONG)
+            .setAction(action) {
+                Log.i("[Snack Bar] Action listener triggered")
+                listener()
+            }
+            .show()
+    }
+
     override fun showSnackBar(message: String) {
         Snackbar.make(findViewById(R.id.coordinator), message, Snackbar.LENGTH_LONG).show()
     }

app/src/main/java/org/linphone/activities/main/chat/fragments/DetailChatRoomFragment.kt

@@ -42,9 +42,7 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import java.io.File
 import java.lang.IllegalArgumentException
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
+import kotlinx.coroutines.*
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.LinphoneApplication.Companion.corePreferences
 import org.linphone.R
@@ -256,15 +254,10 @@ class DetailChatRoomFragment : MasterFragment<ChatRoomDetailFragmentBinding, Cha
 
             override fun onRightToLeftSwipe(viewHolder: RecyclerView.ViewHolder) {
                 val position = viewHolder.bindingAdapterPosition
+                // adapter.notifyItemRemoved(viewHolder.bindingAdapterPosition)
+
                 val eventLog = adapter.currentList[position]
-                val chatMessage = eventLog.eventLog.chatMessage
-                if (chatMessage != null) {
-                    Log.i("[Chat Room] Deleting message $chatMessage at position $position")
-                    listViewModel.deleteMessage(chatMessage)
-                } else {
-                    Log.i("[Chat Room] Deleting event $eventLog at position $position")
-                    listViewModel.deleteEventLogs(arrayListOf(eventLog))
-                }
+                addDeleteMessageTaskToQueue(eventLog, position)
             }
         }
         RecyclerViewSwipeUtils(ItemTouchHelper.RIGHT or ItemTouchHelper.LEFT, swipeConfiguration, swipeListener)
@@ -842,6 +835,34 @@ class DetailChatRoomFragment : MasterFragment<ChatRoomDetailFragmentBinding, Cha
         popupWindow.showAsDropDown(binding.menu, 0, 0, Gravity.BOTTOM)
     }
 
+    private fun addDeleteMessageTaskToQueue(eventLog: EventLogData, position: Int) {
+        val task = lifecycleScope.launch {
+            delay(2800) // Duration of Snackbar.LENGTH_LONG
+            withContext(Dispatchers.Main) {
+                if (isActive) {
+                    Log.i("[Chat Room] Message/event deletion task is still active, proceed")
+                    val chatMessage = eventLog.eventLog.chatMessage
+                    if (chatMessage != null) {
+                        Log.i("[Chat Room] Deleting message $chatMessage at position $position")
+                        listViewModel.deleteMessage(chatMessage)
+                    } else {
+                        Log.i("[Chat Room] Deleting event $eventLog at position $position")
+                        listViewModel.deleteEventLogs(arrayListOf(eventLog))
+                    }
+                }
+            }
+        }
+
+        (requireActivity() as MainActivity).showSnackBar(
+            R.string.chat_message_removal_info,
+            R.string.chat_message_abort_removal
+        ) {
+            Log.i("[Chat Room] Canceled message/event deletion task: $task for message/event at position $position")
+            adapter.notifyItemRangeChanged(position, adapter.itemCount - position)
+            task.cancel()
+        }
+    }
+
     private fun scrollToFirstUnreadMessageOrBottom(smooth: Boolean) {
         if (_adapter != null && adapter.itemCount > 0) {
             // Scroll to first unread message if any

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

@@ -630,4 +630,6 @@
     <string name="audio_settings_prefer_bluetooth_devices_title">Acheminer l\'audio vers l\'appareil bluetooth, s\'il existe</string>
     <string name="audio_settings_prefer_bluetooth_devices_summary">Il aura la priorité sur le périphérique de sortie par défaut</string>
     <string name="call_settings_ringtones_title">Sonnerie</string>
+    <string name="chat_message_removal_info">Le message va être supprimé</string>
+    <string name="chat_message_abort_removal">Annuler</string>
 </resources>

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

@@ -227,6 +227,8 @@
         <item quantity="one">@string/chat_room_unread_message</item>
         <item quantity="other">@string/chat_room_unread_messages</item>
     </plurals>
+    <string name="chat_message_removal_info">Message will be deleted</string>
+    <string name="chat_message_abort_removal">Abort</string>
 
     <!-- Recordings -->
     <string name="recordings_empty_list">No recordings</string>