1 #ifndef DALI_INTERNAL_WINDOW_VISIBILITY_OBSERVER_H
2 #define DALI_INTERNAL_WINDOW_VISIBILITY_OBSERVER_H
5 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
28 * An interface used to observe when the application's window is shown/hidden.
30 class WindowVisibilityObserver
34 * Called when the window becomes fully or partially visible.
36 virtual void OnWindowShown() = 0;
39 * Called when the window is fully hidden.
41 virtual void OnWindowHidden() = 0;
45 * Protected Constructor.
47 WindowVisibilityObserver()
52 * Protected virtual destructor.
54 virtual ~WindowVisibilityObserver()
59 } // namespace Adaptor
61 } // namespace Internal
65 #endif // DALI_INTERNAL_WINDOW_VISIBILITY_OBSERVER_H