fix replying to wrong message

when new message arrives during the gesture

lib/views/chat.dart

@@ -28,6 +28,7 @@ import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:image_picker/image_picker.dart';
 import 'package:pedantic/pedantic.dart';
 import 'package:scroll_to_index/scroll_to_index.dart';
+import 'package:swipe_to_action/swipe_to_action.dart';
 
 import '../components/dialogs/send_file_dialog.dart';
 import '../components/input_bar.dart';
@@ -343,9 +344,9 @@ class _ChatState extends State<_Chat> {
     setState(() => selectedEvents.clear());
   }
 
-  void replyAction() {
+  void replyAction({Event replyTo}) {
     setState(() {
-      replyEvent = selectedEvents.first;
+      replyEvent = replyTo ?? selectedEvents.first;
       selectedEvents.clear();
     });
     inputFocus.requestFocus();
@@ -668,6 +669,29 @@ class _ChatState extends State<_Chat> {
                                       key: ValueKey(i - 1),
                                       index: i - 1,
                                       controller: _scrollController,
+                                      child: Swipeable(
+                                        key: ValueKey(
+                                            filteredEvents[i - 1].eventId),
+                                        background: Container(
+                                          color: Theme.of(context)
+                                              .primaryColor
+                                              .withAlpha(100),
+                                          padding: EdgeInsets.symmetric(
+                                              horizontal: 12.0),
+                                          alignment: Alignment.centerLeft,
+                                          child: Row(
+                                            children: [
+                                              Icon(Icons.reply),
+                                              SizedBox(width: 2.0),
+                                              Text(L10n.of(context).reply)
+                                            ],
+                                          ),
+                                        ),
+                                        direction: SwipeDirection.startToEnd,
+                                        onSwipe: (direction) {
+                                          replyAction(
+                                              replyTo: filteredEvents[i - 1]);
+                                        },
                                         child: Message(filteredEvents[i - 1],
                                             onAvatarTab: (Event event) {
                                               sendController.text +=
@@ -683,8 +707,8 @@ class _ChatState extends State<_Chat> {
                                                   );
                                                 } else {
                                                   setState(
-                                                  () =>
+                                                    () => selectedEvents
-                                                      selectedEvents.add(event),
+                                                        .add(event),
                                                   );
                                                 }
                                                 selectedEvents.sort(
@@ -699,12 +723,13 @@ class _ChatState extends State<_Chat> {
                                                     context: context),
                                             longPressSelect:
                                                 selectedEvents.isEmpty,
-                                          selected: selectedEvents
+                                            selected: selectedEvents.contains(
-                                              .contains(filteredEvents[i - 1]),
+                                                filteredEvents[i - 1]),
                                             timeline: timeline,
                                             nextEvent: i >= 2
                                                 ? filteredEvents[i - 2]
                                                 : null),
+                                      ),
                                     );
                         });
                   },

pubspec.lock

@@ -877,6 +877,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0-nullsafety.1"
+  swipe_to_action:
+    dependency: "direct main"
+    description:
+      name: swipe_to_action
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.0"
   synchronized:
     dependency: transitive
     description:

pubspec.yaml

@@ -69,6 +69,7 @@ dependencies:
   flutter_blurhash: ^0.5.0
   sentry: ">=3.0.0 <4.0.0"
   scroll_to_index: ^1.0.6
+  swipe_to_action: ^0.1.0
 
 dev_dependencies:
   flutter_test: