Switching composer between text mode & action mode

Riot/Modules/Room/Views/InputToolbar/RoomActionItem.swift

@@ -0,0 +1,30 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import UIKit
+
+@objcMembers
+@objc class RoomActionItem: NSObject {
+    var image: UIImage!
+    var action: (() -> Void)!
+
+    init(image: UIImage, andAction action: @escaping () -> Void) {
+        super.init()
+        
+        self.image = image
+        self.action = action
+    }
+}