Add call notice on conversations list

lib/ui/tiles/conversation_tile.dart

@@ -1,6 +1,7 @@
 import 'package:comunic/helpers/conversations_helper.dart';
 import 'package:comunic/lists/users_list.dart';
 import 'package:comunic/models/conversation.dart';
+import 'package:comunic/ui/routes/main_route/main_route.dart';
 import 'package:comunic/ui/widgets/conversation_image_widget.dart';
 import 'package:comunic/ui/widgets/custom_list_tile.dart';
 import 'package:comunic/utils/date_utils.dart';
@@ -52,8 +53,11 @@ class ConversationTile extends StatelessWidget {
   }
 
   @override
-  Widget build(BuildContext context) {
-    return CustomListTile(
+  Widget build(BuildContext context) => Column(
+        children: [_buildMainTile(context), _buildCallTile(context)],
+      );
+
+  Widget _buildMainTile(BuildContext context) => CustomListTile(
         onTap: () => onOpen(conversation),
         // Conversation name
         title: Text(
@@ -72,8 +76,8 @@ class ConversationTile extends StatelessWidget {
             : (conversation.color ?? Colors.blue).withOpacity(0.2),
 
         // Leading icon
-      leading:
-          ConversationImageWidget(conversation: conversation, users: usersList),
+        leading: ConversationImageWidget(
+            conversation: conversation, users: usersList),
 
         // Conversation information
         isThreeLine: true,
@@ -112,6 +116,21 @@ class ConversationTile extends StatelessWidget {
               ]).then(_conversationMenuCallback);
         },
       );
+
+  /// Build call tile, in case of ongoing call
+  Widget _buildCallTile(BuildContext context) {
+    if (!conversation.isHavingCall) return Container();
+
+    return Padding(
+      padding: EdgeInsets.only(bottom: 20),
+      child: ListTile(
+        onTap: () => MainController.of(context).startCall(conversation.id),
+        dense: true,
+        title: Text(tr("Ongoing call")),
+        leading: Icon(Icons.call),
+        tileColor: Colors.yellow.withOpacity(0.2),
+      ),
+    );
   }
 
   /// Method called each time an option of the menu is selected