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// Copyright 2016 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 GestureManager_h
#define GestureManager_h
#include "core/CoreExport.h"
#include "core/frame/LocalFrame.h"
#include "core/layout/HitTestRequest.h"
#include "core/page/EventWithHitTestResults.h"
#include "platform/PlatformEvent.h"
#include "public/platform/WebInputEventResult.h"
namespace blink {
class ScrollManager;
class SelectionController;
class PointerEventManager;
class MouseEventManager;
// This class takes care of gestures and delegating the action based on the
// gesture to the responsible class.
class CORE_EXPORT GestureManager
: public GarbageCollectedFinalized<GestureManager> {
WTF_MAKE_NONCOPYABLE(GestureManager);
public:
GestureManager(LocalFrame&,
ScrollManager&,
MouseEventManager&,
PointerEventManager&,
SelectionController&);
DECLARE_TRACE();
void clear();
HitTestRequest::HitTestRequestType getHitTypeForGestureType(
WebInputEvent::Type);
WebInputEventResult handleGestureEventInFrame(
const GestureEventWithHitTestResults&);
// TODO(nzolghadr): This can probably be hidden and the related logic
// be moved to this class (see crrev.com/112023010). Since that might cause
// regression it's better to move that logic in another change.
TimeTicks getLastShowPressTimestamp() const;
private:
WebInputEventResult handleGestureShowPress();
WebInputEventResult handleGestureTapDown(
const GestureEventWithHitTestResults&);
WebInputEventResult handleGestureTap(const GestureEventWithHitTestResults&);
WebInputEventResult handleGestureLongPress(
const GestureEventWithHitTestResults&);
WebInputEventResult handleGestureLongTap(
const GestureEventWithHitTestResults&);
WebInputEventResult handleGestureTwoFingerTap(
const GestureEventWithHitTestResults&);
WebInputEventResult sendContextMenuEventForGesture(
const GestureEventWithHitTestResults&);
FrameHost* frameHost() const;
// NOTE: If adding a new field to this class please ensure that it is
// cleared if needed in |GestureManager::clear()|.
const Member<LocalFrame> m_frame;
Member<ScrollManager> m_scrollManager;
Member<MouseEventManager> m_mouseEventManager;
Member<PointerEventManager> m_pointerEventManager;
// Set on GestureTapDown if the |pointerdown| event corresponding to the
// triggering |touchstart| event was canceled. This suppresses mouse event
// firing for the current gesture sequence (i.e. until next GestureTapDown).
bool m_suppressMouseEventsFromGestures;
bool m_longTapShouldInvokeContextMenu;
const Member<SelectionController> m_selectionController;
TimeTicks m_lastShowPressTimestamp;
};
} // namespace blink
#endif // GestureManager_h
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