allow editing and redacting of other messages in the same bundle

lib/pages/chat.dart

@@ -458,19 +458,51 @@ class ChatController extends State<Chat> {
     for (final event in selectedEvents) {
       await showFutureLoadingDialog(
           context: context,
-          future: () =>
+          future: () async {
-              event.status > 0 ? event.redactEvent() : event.remove());
+            if (event.status > 0) {
+              if (event.canRedact) {
+                await event.redactEvent();
+              } else {
+                final client = currentRoomBundle.firstWhere(
+                    (cl) => selectedEvents.first.senderId == cl.userID,
+                    orElse: () => null);
+                if (client == null) {
+                  return;
+                }
+                final room = client.getRoomById(roomId);
+                await Event.fromJson(event.toJson(), room).redactEvent();
+              }
+            } else {
+              await event.remove();
+            }
+          });
     }
     setState(() => selectedEvents.clear());
   }
 
+  List<Client> get currentRoomBundle {
+    final clients = matrix.currentBundle;
+    clients.removeWhere((c) => c.getRoomById(roomId) == null);
+    return clients;
+  }
+
   bool get canRedactSelectedEvents {
+    final clients = matrix.currentBundle;
     for (final event in selectedEvents) {
-      if (event.canRedact == false) return false;
+      if (event.canRedact == false &&
+          !(clients.any((cl) => event.senderId == cl.userID))) return false;
     }
     return true;
   }
 
+  bool get canEditSelectedEvents {
+    if (selectedEvents.length != 1 || selectedEvents.first.status < 1) {
+      return false;
+    }
+    return currentRoomBundle
+        .any((cl) => selectedEvents.first.senderId == cl.userID);
+  }
+
   void forwardEventsAction() async {
     if (selectedEvents.length == 1) {
       Matrix.of(context).shareContent = selectedEvents.first.content;
@@ -595,6 +627,13 @@ class ChatController extends State<Chat> {
       });
 
   void editSelectedEventAction() {
+    final client = currentRoomBundle.firstWhere(
+        (cl) => selectedEvents.first.senderId == cl.userID,
+        orElse: () => null);
+    if (client == null) {
+      return;
+    }
+    setSendingClient(client);
     setState(() {
       pendingText = sendController.text;
       editEvent = selectedEvents.first;
@@ -700,8 +739,7 @@ class ChatController extends State<Chat> {
   }
 
   void onInputBarChanged(String text) {
-    final clients = matrix.currentBundle;
+    final clients = currentRoomBundle;
-    clients.removeWhere((c) => c.getRoomById(roomId) == null);
     for (final client in clients) {
       final prefix = client.sendPrefix;
       if ((prefix?.isNotEmpty ?? false) &&

lib/pages/views/chat_view.dart

@@ -148,10 +148,7 @@ class ChatView extends StatelessWidget {
                 : Text(controller.selectedEvents.length.toString()),
             actions: controller.selectMode
                 ? <Widget>[
-                    if (controller.selectedEvents.length == 1 &&
+                    if (controller.canEditSelectedEvents)
-                        controller.selectedEvents.first.status > 0 &&
-                        controller.selectedEvents.first.senderId ==
-                            client.userID)
                       IconButton(
                         icon: Icon(Icons.edit_outlined),
                         tooltip: L10n.of(context).edit,
@@ -820,8 +817,7 @@ class _ChatAccountPicker extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     controller.matrix ??= Matrix.of(context);
-    final clients = controller.matrix.currentBundle;
+    final clients = controller.currentRoomBundle;
-    clients.removeWhere((c) => c.getRoomById(controller.roomId) == null);
     return Padding(
       padding: const EdgeInsets.all(8.0),
       child: FutureBuilder<Profile>(