fix(ui): fix gallery actions (reply + show in chat)

packages/stream_chat_flutter/lib/src/message_list_view/message_list_view.dart

@@ -113,6 +113,8 @@ class StreamMessageListView extends StatefulWidget {
     this.onViewInChannelTap,
     this.onEditMessageTap,
     this.onReplyTap,
+    this.onShowMessage,
+    this.attachmentActionsModalBuilder,
     this.swipeToReply = false,
     this.onUserAvatarTap,
     this.onReactionsTap,
@@ -240,6 +242,18 @@ class StreamMessageListView extends StatefulWidget {
   /// Forwarded to each [StreamMessageWidget] in the list.
   final void Function(Message)? onReplyTap;
 
+  /// Called when the "show in chat" action is tapped in the full-screen
+  /// media gallery.
+  ///
+  /// Forwarded to each [StreamMessageWidget] in the list.
+  final ShowMessageCallback? onShowMessage;
+
+  /// Widget builder for the attachment actions modal shown in the full-screen
+  /// media gallery.
+  ///
+  /// Forwarded to each [StreamMessageWidget] in the list.
+  final AttachmentActionsBuilder? attachmentActionsModalBuilder;
+
   /// Whether swiping a message triggers a quoted-reply action.
   ///
   /// Forwarded to each [StreamMessageWidget] in the list via
@@ -1152,6 +1166,8 @@ class _StreamMessageListViewState extends State<StreamMessageListView> {
       onMessageLongPress: widget.onMessageLongPress,
       onEditMessageTap: widget.onEditMessageTap,
       onReplyTap: widget.onReplyTap,
+      onShowMessage: widget.onShowMessage,
+      attachmentActionsModalBuilder: widget.attachmentActionsModalBuilder,
       onUserAvatarTap: widget.onUserAvatarTap,
       onReactionsTap: widget.onReactionsTap,
       onQuotedMessageTap: widget.onQuotedMessageTap,
@@ -1302,6 +1318,14 @@ class _StreamMessageListViewState extends State<StreamMessageListView> {
       onMessageLongPress: widget.onMessageLongPress,
       onEditMessageTap: widget.onEditMessageTap,
       onReplyTap: widget.onReplyTap,
+      onShowMessage: switch (widget.onShowMessage) {
+        final onTap? => onTap,
+        _ => (message, _) => _moveToAndHighlight(
+          messageId: message.id,
+          messages: messages,
+        ),
+      },
+      attachmentActionsModalBuilder: widget.attachmentActionsModalBuilder,
       onUserAvatarTap: widget.onUserAvatarTap,
       onReactionsTap: widget.onReactionsTap,
       onMessageLinkTap: widget.onMessageLinkTap,

packages/stream_chat_flutter/lib/src/message_widget/components/stream_message_content.dart

@@ -6,6 +6,7 @@ import 'package:stream_chat_flutter/src/message_widget/components/stream_message
 import 'package:stream_chat_flutter/src/message_widget/components/stream_message_reactions.dart';
 import 'package:stream_chat_flutter/src/message_widget/components/stream_message_text.dart';
 import 'package:stream_chat_flutter/src/message_widget/parse_attachments.dart';
+import 'package:stream_chat_flutter/src/utils/typedefs.dart';
 import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
 import 'package:stream_core_flutter/stream_core_flutter.dart' as core;
 
@@ -41,6 +42,9 @@ class StreamMessageContent extends StatefulWidget {
     this.onReactionsTap,
     this.onQuotedMessageTap,
     this.reactionSorting,
+    this.onShowMessage,
+    this.onReplyTap,
+    this.attachmentActionsModalBuilder,
   });
 
   /// The message to display.
@@ -95,6 +99,17 @@ class StreamMessageContent extends StatefulWidget {
   /// Passed through to [StreamMessageReactions.sorting].
   final Comparator<ReactionGroup>? reactionSorting;
 
+  /// Called when the "show in chat" action is tapped in the full-screen
+  /// media gallery.
+  final ShowMessageCallback? onShowMessage;
+
+  /// Called when the reply action is tapped in the full-screen media gallery.
+  final void Function(Message)? onReplyTap;
+
+  /// Widget builder for the attachment actions modal in the full-screen
+  /// media gallery.
+  final AttachmentActionsBuilder? attachmentActionsModalBuilder;
+
   @override
   State<StreamMessageContent> createState() => _StreamMessageContentState();
 }
@@ -179,6 +194,9 @@ class _StreamMessageContentState extends State<StreamMessageContent> {
                         key: attachmentsKey,
                         message: widget.message,
                         attachmentBuilders: widget.attachmentBuilders,
+                        onShowMessage: widget.onShowMessage,
+                        onReplyTap: widget.onReplyTap,
+                        attachmentActionsModalBuilder: widget.attachmentActionsModalBuilder,
                       ),
                       if (widget.message.text case final text? when text.isNotEmpty)
                         StreamMessageText(

packages/stream_chat_flutter/lib/src/message_widget/message_widget.dart

@@ -93,6 +93,8 @@ class StreamMessageWidget extends StatelessWidget {
     void Function(BuildContext, Message)? onBouncedErrorMessageActions,
     void Function(Message)? onEditMessageTap,
     List<StreamAttachmentWidgetBuilder>? attachmentBuilders,
+    ShowMessageCallback? onShowMessage,
+    AttachmentActionsBuilder? attachmentActionsModalBuilder,
   }) : props = .new(
          message: message,
          padding: padding,
@@ -116,6 +118,8 @@ class StreamMessageWidget extends StatelessWidget {
          onBouncedErrorMessageActions: onBouncedErrorMessageActions,
          onEditMessageTap: onEditMessageTap,
          attachmentBuilders: attachmentBuilders,
+         onShowMessage: onShowMessage,
+         attachmentActionsModalBuilder: attachmentActionsModalBuilder,
        );
 
   /// Creates a chat message widget from pre-built [props].
@@ -171,6 +175,8 @@ class StreamMessageWidgetProps {
     this.onBouncedErrorMessageActions,
     this.onEditMessageTap,
     this.attachmentBuilders,
+    this.onShowMessage,
+    this.attachmentActionsModalBuilder,
   });
 
   /// The message to display.
@@ -334,6 +340,20 @@ class StreamMessageWidgetProps {
   /// priority for attachment types they can handle.
   final List<StreamAttachmentWidgetBuilder>? attachmentBuilders;
 
+  /// Called when the "show in chat" action is tapped in the full-screen
+  /// media gallery.
+  ///
+  /// Receives the [Message] and its [Channel] so the caller can scroll to
+  /// the message in the channel view.
+  final ShowMessageCallback? onShowMessage;
+
+  /// Widget builder for the attachment actions modal shown in the full-screen
+  /// media gallery.
+  ///
+  /// When non-null, allows customizing the [AttachmentActionsModal] displayed
+  /// when the user taps the actions button in the gallery header.
+  final AttachmentActionsBuilder? attachmentActionsModalBuilder;
+
   /// Returns a copy of this [StreamMessageWidgetProps] with the given fields
   /// replaced with new values.
   StreamMessageWidgetProps copyWith({
@@ -359,6 +379,8 @@ class StreamMessageWidgetProps {
     void Function(BuildContext, Message)? onBouncedErrorMessageActions,
     void Function(Message)? onEditMessageTap,
     List<StreamAttachmentWidgetBuilder>? attachmentBuilders,
+    ShowMessageCallback? onShowMessage,
+    AttachmentActionsBuilder? attachmentActionsModalBuilder,
   }) {
     return StreamMessageWidgetProps(
       message: message ?? this.message,
@@ -383,6 +405,8 @@ class StreamMessageWidgetProps {
       onBouncedErrorMessageActions: onBouncedErrorMessageActions ?? this.onBouncedErrorMessageActions,
       onEditMessageTap: onEditMessageTap ?? this.onEditMessageTap,
       attachmentBuilders: attachmentBuilders ?? this.attachmentBuilders,
+      onShowMessage: onShowMessage ?? this.onShowMessage,
+      attachmentActionsModalBuilder: attachmentActionsModalBuilder ?? this.attachmentActionsModalBuilder,
     );
   }
 }
@@ -484,6 +508,9 @@ class DefaultStreamMessage extends StatelessWidget {
       attachmentBuilders: props.attachmentBuilders,
       reactionSorting: props.reactionSorting,
       onQuotedMessageTap: props.onQuotedMessageTap,
+      onShowMessage: props.onShowMessage,
+      onReplyTap: props.onReplyTap,
+      attachmentActionsModalBuilder: props.attachmentActionsModalBuilder,
       onLinkTap: (_, href, __) {
         if (href == null) return;
         if (props.onMessageLinkTap case final onTap?) return onTap(message, href);