chore: do not block UI while redacting events

Signed-off-by: TheOneWithTheBraid <the-one@with-the-braid.cf>

assets/l10n/intl_en.arb

@@ -1467,6 +1467,20 @@
       "count": {}
     }
   },
+  "messagesRemoving": "{count,plural, =1{Message removing...} other{Messages removing...}}",
+  "@messagesRemoving": {
+    "type": "text",
+    "placeholders": {
+      "count": {}
+    }
+  },
+  "couldNotDeleteMessages": "{count,plural, =1{Could not delete the message.} other{Could not delete {count} message.}}",
+  "@couldNotDeleteMessages": {
+    "type": "text",
+    "placeholders": {
+      "count": {}
+    }
+  },
   "muteChat": "Mute chat",
   "@muteChat": {
     "type": "text",

lib/pages/chat/chat.dart

@@ -110,6 +110,8 @@ class ChatController extends State<Chat> {
 
   List<Event> selectedEvents = [];
 
+  bool actionsDisabled = false;
+
   final Set<String> unfolded = {};
 
   Event? replyEvent;
@@ -259,7 +261,7 @@ class ChatController extends State<Chat> {
     if (sendController.text.trim().isEmpty) return;
     var parseCommands = true;
 
-    final commandMatch = RegExp(r'^\/(\w+)').firstMatch(sendController.text);
+    final commandMatch = RegExp(r'^/(\w+)').firstMatch(sendController.text);
     if (commandMatch != null &&
         !room!.client.commands.keys.contains(commandMatch[1]!.toLowerCase())) {
       final l10n = L10n.of(context)!;
@@ -549,31 +551,63 @@ class ChatController extends State<Chat> {
         ) ==
         OkCancelResult.ok;
     if (!confirmed) return;
+
+    setState(() {
+      actionsDisabled = true;
+      showEmojiPicker = false;
+    });
+    ScaffoldFeatureController<MaterialBanner, MaterialBannerClosedReason>?
+        bannerController;
+    final banner = MaterialBanner(
+      content: Text(L10n.of(context)!.messagesRemoving(selectedEvents.length)),
+      actions: [
+        TextButton(
+          onPressed: () => bannerController?.close(),
+          child: Text(L10n.of(context)!.close),
+        ),
+      ],
+    );
+
+    bannerController = ScaffoldMessenger.of(context).showMaterialBanner(banner);
+
+    final Set<String> failedRedacts = {};
+
     for (final event in selectedEvents) {
-      await showFutureLoadingDialog(
-          context: context,
-          future: () async {
-            if (event.status.isSent) {
-              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();
+      try {
+        if (event.status.isSent) {
+          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();
+        }
+      } catch (e) {
+        failedRedacts.add(event.eventId);
+      }
+    }
+    bannerController.close();
+    if (failedRedacts.isEmpty) {
+      selectedEvents.clear();
+    } else {
+      selectedEvents.removeWhere(
+        (element) => !failedRedacts.contains(element.eventId),
+      );
+      showAlertDialog(
+        context: context,
+        message: L10n.of(context)!.couldNotDeleteMessages(failedRedacts.length),
+      );
     }
     setState(() {
-      showEmojiPicker = false;
-      selectedEvents.clear();
+      actionsDisabled = false;
     });
   }
 
@@ -823,6 +857,7 @@ class ChatController extends State<Chat> {
   }
 
   void onSelectMessage(Event event) {
+    if (actionsDisabled) return;
     if (!event.redacted) {
       if (selectedEvents.contains(event)) {
         setState(

lib/pages/chat/chat_view.dart

@@ -40,30 +40,38 @@ class ChatView extends StatelessWidget {
           IconButton(
             icon: const Icon(Icons.edit_outlined),
             tooltip: L10n.of(context)!.edit,
-            onPressed: controller.editSelectedEventAction,
+            onPressed: controller.actionsDisabled
+                ? null
+                : controller.editSelectedEventAction,
           ),
         IconButton(
           icon: const Icon(Icons.copy_outlined),
           tooltip: L10n.of(context)!.copy,
-          onPressed: controller.copyEventsAction,
+          onPressed:
+              controller.actionsDisabled ? null : controller.copyEventsAction,
         ),
         if (controller.canSaveSelectedEvent)
           // Use builder context to correctly position the share dialog on iPad
           Builder(
-              builder: (context) => IconButton(
-                    icon: Icon(Icons.adaptive.share),
-                    tooltip: L10n.of(context)!.share,
-                    onPressed: () => controller.saveSelectedEvent(context),
-                  )),
+            builder: (context) => IconButton(
+              icon: Icon(Icons.adaptive.share),
+              tooltip: L10n.of(context)!.share,
+              onPressed: controller.actionsDisabled
+                  ? null
+                  : () => controller.saveSelectedEvent(context),
+            ),
+          ),
         if (controller.canRedactSelectedEvents)
           IconButton(
             icon: const Icon(Icons.delete_outlined),
             tooltip: L10n.of(context)!.redactMessage,
-            onPressed: controller.redactEventsAction,
+            onPressed: controller.actionsDisabled
+                ? null
+                : controller.redactEventsAction,
           ),
         IconButton(
           icon: const Icon(Icons.push_pin_outlined),
-          onPressed: controller.pinEvent,
+          onPressed: controller.actionsDisabled ? null : controller.pinEvent,
           tooltip: L10n.of(context)!.pinMessage,
         ),
         if (controller.selectedEvents.length == 1)