TF-4064 Support drag & drop email addresses in composer on mobile

lib/features/base/widget/card_with_smart_interaction_overlay_view.dart

@@ -111,7 +111,6 @@ class _CardWithSmartInteractionOverlayViewState
       child: SmartInteractionWidget(
         onRightMouseClickAction: ({RelativeRect? position}) => _togglePopup(),
         onDoubleClickAction: ({RelativeRect? position}) => _togglePopup(),
-        onLongPressAction: _togglePopup,
         onTapAction: _togglePopup,
         child: widget.child,
       ),

lib/features/base/widget/smart_interaction_widget.dart

@@ -7,7 +7,6 @@ import 'package:universal_html/html.dart' as html;
 
 typedef OnRightMouseClickAction = void Function({RelativeRect? position});
 typedef OnDoubleClickAction = void Function({RelativeRect? position});
-typedef OnLongPressAction = void Function();
 typedef OnTapAction = void Function();
 
 class SmartInteractionWidget extends StatefulWidget {
@@ -15,7 +14,6 @@ class SmartInteractionWidget extends StatefulWidget {
   final bool usePosition;
   final OnRightMouseClickAction onRightMouseClickAction;
   final OnDoubleClickAction onDoubleClickAction;
-  final OnLongPressAction onLongPressAction;
   final OnTapAction onTapAction;
 
   const SmartInteractionWidget({
@@ -23,7 +21,6 @@ class SmartInteractionWidget extends StatefulWidget {
     required this.child,
     required this.onRightMouseClickAction,
     required this.onDoubleClickAction,
-    required this.onLongPressAction,
     required this.onTapAction,
     this.usePosition = false,
   });
@@ -133,8 +130,6 @@ class _SmartInteractionWidgetState extends State<SmartInteractionWidget> {
     }
   }
 
-  void _handleLongPress() => widget.onLongPressAction();
-
   void _handleOnTapAction() => widget.onTapAction();
 
   @override
@@ -172,7 +167,6 @@ class _SmartInteractionWidgetState extends State<SmartInteractionWidget> {
       }
     } else {
       return GestureDetector(
-        onLongPress: _handleLongPress,
         onTap: _handleOnTapAction,
         child: widget.child,
       );

lib/features/composer/presentation/widgets/recipient_tag_item_widget.dart

@@ -139,24 +139,37 @@ class RecipientTagItemWidget extends StatelessWidget {
     );
 
     if (PlatformInfo.isWeb || isTestingForWeb) {
-      tagWidget = Draggable<DraggableEmailAddress>(
-        data: DraggableEmailAddress(
-          emailAddress: currentEmailAddress,
-          filterField: prefix.filterField,
-          composerId: composerId,
-        ),
-        feedback: DraggableRecipientTagWidget(
-          imagePaths: imagePaths,
-          emailAddress: currentEmailAddress,
-        ),
-        childWhenDragging: DraggableRecipientTagWidget(
-          imagePaths: imagePaths,
-          emailAddress: currentEmailAddress,
-        ),
+      tagWidget = MouseRegion(
+        cursor: SystemMouseCursors.grab,
         child: tagWidget,
       );
     }
 
+    tagWidget = Draggable<DraggableEmailAddress>(
+      data: DraggableEmailAddress(
+        emailAddress: currentEmailAddress,
+        filterField: prefix.filterField,
+        composerId: composerId,
+      ),
+      feedback: DraggableRecipientTagWidget(
+        imagePaths: imagePaths,
+        emailAddress: currentEmailAddress,
+      ),
+      childWhenDragging: PlatformInfo.isMobile
+        ? Padding(
+            padding: const EdgeInsets.only(top: 10),
+            child: DraggableRecipientTagWidget(
+              imagePaths: imagePaths,
+              emailAddress: currentEmailAddress,
+            ),
+          )
+        : DraggableRecipientTagWidget(
+            imagePaths: imagePaths,
+            emailAddress: currentEmailAddress,
+          ),
+      child: tagWidget,
+    );
+
     if ((PlatformInfo.isWeb || isTestingForWeb) && PlatformInfo.isCanvasKit) {
       tagWidget = Padding(
         padding: const EdgeInsetsDirectional.only(top: 8),