feat: Added message reply

packages/flutter_widgets/lib/src/giphy_attachment.dart

@@ -13,6 +13,7 @@ class GiphyAttachment extends StatelessWidget {
   final Message message;
   final Size size;
   final ShowMessageCallback onShowMessage;
+  final ValueChanged<ReturnActionType> onReturnAction;
 
   const GiphyAttachment({
     Key key,
@@ -21,6 +22,7 @@ class GiphyAttachment extends StatelessWidget {
     this.message,
     this.size,
     this.onShowMessage,
+    this.onReturnAction,
   }) : super(key: key);
 
   @override
@@ -65,8 +67,9 @@ class GiphyAttachment extends StatelessWidget {
                   Padding(
                     padding: const EdgeInsets.all(8.0),
                     child: GestureDetector(
-                      onTap: () {
-                        Navigator.push(context, MaterialPageRoute(builder: (_) {
+                      onTap: () async {
+                        var res = await Navigator.push(context,
+                            MaterialPageRoute(builder: (_) {
                           final channel = StreamChannel.of(context).channel;
 
                           return StreamChannel(
@@ -82,6 +85,10 @@ class GiphyAttachment extends StatelessWidget {
                             ),
                           );
                         }));
+
+                        if (res != null) {
+                          onReturnAction(res);
+                        }
                       },
                       child: ClipRRect(
                         borderRadius: BorderRadius.only(
@@ -320,8 +327,9 @@ class GiphyAttachment extends StatelessWidget {
   Widget _buildSentAttachment(context) {
     return Container(
       child: GestureDetector(
-        onTap: () {
-          Navigator.push(context, MaterialPageRoute(builder: (_) {
+        onTap: () async {
+          var res =
+              await Navigator.push(context, MaterialPageRoute(builder: (_) {
             var channel = StreamChannel.of(context).channel;
 
             return StreamChannel(
@@ -337,6 +345,10 @@ class GiphyAttachment extends StatelessWidget {
               ),
             );
           }));
+
+          if (res != null) {
+            onReturnAction(res);
+          }
         },
         child: Stack(
           children: [