add copyWith to Messagewidget

packages/stream_chat_flutter/lib/src/message_widget.dart

@@ -397,6 +397,117 @@ class MessageWidget extends StatefulWidget {
   /// Customize onTap on attachment
   final void Function(Message message, Attachment attachment)? onAttachmentTap;
 
+  /// Creates a copy of [MessageWidget] with specified attributes overridden.
+  MessageWidget copyWith({
+    Key? key,
+    void Function(User)? onMentionTap,
+    void Function(Message)? onThreadTap,
+    void Function(Message)? onReplyTap,
+    Widget Function(BuildContext, Message)? editMessageInputBuilder,
+    Widget Function(BuildContext, Message)? textBuilder,
+    Widget Function(BuildContext, Message)? usernameBuilder,
+    void Function(BuildContext, Message)? onMessageActions,
+    Message? message,
+    MessageTheme? messageTheme,
+    bool? reverse,
+    ShapeBorder? shape,
+    ShapeBorder? attachmentShape,
+    BorderSide? borderSide,
+    BorderSide? attachmentBorderSide,
+    BorderRadiusGeometry? borderRadiusGeometry,
+    BorderRadiusGeometry? attachmentBorderRadiusGeometry,
+    EdgeInsetsGeometry? padding,
+    EdgeInsets? textPadding,
+    EdgeInsetsGeometry? attachmentPadding,
+    DisplayWidget? showUserAvatar,
+    bool? showSendingIndicator,
+    bool? showReactions,
+    bool? allRead,
+    bool? showThreadReplyIndicator,
+    bool? showInChannelIndicator,
+    void Function(User)? onUserAvatarTap,
+    void Function(String)? onLinkTap,
+    bool? showReactionPickerIndicator,
+    List<Read>? readList,
+    ShowMessageCallback? onShowMessage,
+    ValueChanged<ReturnActionType>? onReturnAction,
+    bool? showUsername,
+    bool? showTimestamp,
+    bool? showReplyMessage,
+    bool? showThreadReplyMessage,
+    bool? showEditMessage,
+    bool? showCopyMessage,
+    bool? showDeleteMessage,
+    bool? showResendMessage,
+    bool? showFlagButton,
+    bool? showPinButton,
+    bool? showPinHighlight,
+    Map<String, AttachmentBuilder>? customAttachmentBuilders,
+    bool? translateUserAvatar,
+    OnQuotedMessageTap? onQuotedMessageTap,
+    void Function(Message)? onMessageTap,
+    List<MessageAction>? customActions,
+    void Function(Message message, Attachment attachment)? onAttachmentTap,
+  }) =>
+      MessageWidget(
+        key: key ?? this.key,
+        onMentionTap: onMentionTap ?? this.onMentionTap,
+        onThreadTap: onThreadTap ?? this.onThreadTap,
+        onReplyTap: onReplyTap ?? this.onReplyTap,
+        editMessageInputBuilder:
+            editMessageInputBuilder ?? this.editMessageInputBuilder,
+        textBuilder: textBuilder ?? this.textBuilder,
+        usernameBuilder: usernameBuilder ?? this.usernameBuilder,
+        onMessageActions: onMessageActions ?? this.onMessageActions,
+        message: message ?? this.message,
+        messageTheme: messageTheme ?? this.messageTheme,
+        reverse: reverse ?? this.reverse,
+        shape: shape ?? this.shape,
+        attachmentShape: attachmentShape ?? this.attachmentShape,
+        borderSide: borderSide ?? this.borderSide,
+        attachmentBorderSide: attachmentBorderSide ?? this.attachmentBorderSide,
+        borderRadiusGeometry: borderRadiusGeometry ?? this.borderRadiusGeometry,
+        attachmentBorderRadiusGeometry: attachmentBorderRadiusGeometry ??
+            this.attachmentBorderRadiusGeometry,
+        padding: padding ?? this.padding,
+        textPadding: textPadding ?? this.textPadding,
+        attachmentPadding: attachmentPadding ?? this.attachmentPadding,
+        showUserAvatar: showUserAvatar ?? this.showUserAvatar,
+        showSendingIndicator: showSendingIndicator ?? this.showSendingIndicator,
+        showReactions: showReactions ?? this.showReactions,
+        allRead: allRead ?? this.allRead,
+        showThreadReplyIndicator:
+            showThreadReplyIndicator ?? this.showThreadReplyIndicator,
+        showInChannelIndicator:
+            showInChannelIndicator ?? this.showInChannelIndicator,
+        onUserAvatarTap: onUserAvatarTap ?? this.onUserAvatarTap,
+        onLinkTap: onLinkTap ?? this.onLinkTap,
+        showReactionPickerIndicator:
+            showReactionPickerIndicator ?? this.showReactionPickerIndicator,
+        readList: readList ?? this.readList,
+        onShowMessage: onShowMessage ?? this.onShowMessage,
+        onReturnAction: onReturnAction ?? this.onReturnAction,
+        showUsername: showUsername ?? this.showUsername,
+        showTimestamp: showTimestamp ?? this.showTimestamp,
+        showReplyMessage: showReplyMessage ?? this.showReplyMessage,
+        showThreadReplyMessage:
+            showThreadReplyMessage ?? this.showThreadReplyMessage,
+        showEditMessage: showEditMessage ?? this.showEditMessage,
+        showCopyMessage: showCopyMessage ?? this.showCopyMessage,
+        showDeleteMessage: showDeleteMessage ?? this.showDeleteMessage,
+        showResendMessage: showResendMessage ?? this.showResendMessage,
+        showFlagButton: showFlagButton ?? this.showFlagButton,
+        showPinButton: showPinButton ?? this.showPinButton,
+        showPinHighlight: showPinHighlight ?? this.showPinHighlight,
+        customAttachmentBuilders:
+            customAttachmentBuilders ?? this.attachmentBuilders,
+        translateUserAvatar: translateUserAvatar ?? this.translateUserAvatar,
+        onQuotedMessageTap: onQuotedMessageTap ?? this.onQuotedMessageTap,
+        onMessageTap: onMessageTap ?? this.onMessageTap,
+        customActions: customActions ?? this.customActions,
+        onAttachmentTap: onAttachmentTap ?? this.onAttachmentTap,
+      );
+
   @override
   _MessageWidgetState createState() => _MessageWidgetState();
 }