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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_EVENTS_ANDROID_EVENT_HANDLER_ANDROID_H_
#define UI_EVENTS_ANDROID_EVENT_HANDLER_ANDROID_H_
#include <optional>
#include "base/time/time.h"
#include "ui/events/events_export.h"
namespace gfx {
class Rect;
}
namespace ui {
class DragEventAndroid;
class GestureEventAndroid;
class KeyEventAndroid;
class MotionEventAndroid;
// Dispatches events to appropriate targets. The default implementations of
// all of the specific handlers do nothing. Implementations should set
// themselves to the ViewAndroid in the view tree to get the calls routed.
// 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 EVENTS_EXPORT EventHandlerAndroid {
public:
virtual bool OnDragEvent(const DragEventAndroid& event);
virtual bool OnTouchEvent(const MotionEventAndroid& event);
virtual bool OnMouseEvent(const MotionEventAndroid& event);
virtual bool OnMouseWheelEvent(const MotionEventAndroid& event);
virtual bool OnGestureEvent(const GestureEventAndroid& event);
virtual void OnSizeChanged();
virtual void OnPhysicalBackingSizeChanged(
std::optional<base::TimeDelta> deadline_override);
virtual void OnBrowserControlsHeightChanged();
virtual void OnControlsResizeViewChanged();
// OnPointerLockRelease is only called on the view requesting pointer lock,
// not the entire view tree
virtual void OnPointerLockRelease();
virtual bool OnGenericMotionEvent(const MotionEventAndroid& event);
virtual bool OnKeyUp(const KeyEventAndroid& event);
virtual bool DispatchKeyEvent(const KeyEventAndroid& event);
virtual bool ScrollBy(float delta_x, float delta_y);
virtual bool ScrollTo(float x, float y);
virtual void NotifyVirtualKeyboardOverlayRect(const gfx::Rect& keyboard_rect);
virtual void NotifyContextMenuInsetsObservers(const gfx::Rect&);
virtual void ShowInterestInElement(int);
};
} // namespace ui
#endif // UI_EVENTS_ANDROID_EVENT_HANDLER_ANDROID_H_
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