| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_ANDROID_VIEW_CLIENT_H_ |
| #define UI_ANDROID_VIEW_CLIENT_H_ |
| |
| #include "ui/android/ui_android_export.h" |
| |
| namespace ui { |
| |
| class MotionEventAndroid; |
| |
| // Client interface used to forward events from Java to native views. |
| // Calls are dispatched to its children along the hierarchy of ViewAndroid. |
| // Use bool return type to stop propagating the call i.e. overriden method |
| // should return true to indicate that the event was handled and stop |
| // the processing. |
| class UI_ANDROID_EXPORT ViewClient { |
| public: |
| virtual bool OnTouchEvent(const MotionEventAndroid& event, |
| bool for_touch_handle); |
| virtual bool OnMouseEvent(const MotionEventAndroid& event); |
| virtual bool OnMouseWheelEvent(const MotionEventAndroid& event); |
| virtual void OnPhysicalBackingSizeChanged(); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_ANDROID_VIEW_CLIENT_H_ |