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/*
* Copyright 2008, The Android Open Source Project
* Copyright (C) 2012 Research In Motion Limited. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TouchEvent_h
#define TouchEvent_h
#include "core/CoreExport.h"
#include "core/dom/TouchList.h"
#include "core/events/EventDispatchMediator.h"
#include "core/events/TouchEventInit.h"
#include "core/events/UIEventWithKeyState.h"
#include "public/platform/WebPointerProperties.h"
namespace blink {
class CORE_EXPORT TouchEvent final : public UIEventWithKeyState {
DEFINE_WRAPPERTYPEINFO();
public:
~TouchEvent() override;
// We only initialize sourceCapabilities when we create TouchEvent from
// EventHandler, null if it is from JavaScript.
static TouchEvent* create() { return new TouchEvent; }
static TouchEvent* create(TouchList* touches,
TouchList* targetTouches,
TouchList* changedTouches,
const AtomicString& type,
AbstractView* view,
PlatformEvent::Modifiers modifiers,
bool cancelable,
bool causesScrollingIfUncanceled,
bool firstTouchMoveOrStart,
TimeTicks platformTimeStamp,
TouchAction currentTouchAction,
WebPointerProperties::PointerType pointerType) {
return new TouchEvent(touches, targetTouches, changedTouches, type, view,
modifiers, cancelable, causesScrollingIfUncanceled,
firstTouchMoveOrStart, platformTimeStamp,
currentTouchAction, pointerType);
}
static TouchEvent* create(const AtomicString& type,
const TouchEventInit& initializer) {
return new TouchEvent(type, initializer);
}
TouchList* touches() const { return m_touches.get(); }
TouchList* targetTouches() const { return m_targetTouches.get(); }
TouchList* changedTouches() const { return m_changedTouches.get(); }
void setTouches(TouchList* touches) { m_touches = touches; }
void setTargetTouches(TouchList* targetTouches) {
m_targetTouches = targetTouches;
}
void setChangedTouches(TouchList* changedTouches) {
m_changedTouches = changedTouches;
}
bool causesScrollingIfUncanceled() const {
return m_causesScrollingIfUncanceled;
}
bool isTouchEvent() const override;
const AtomicString& interfaceName() const override;
void preventDefault() override;
void doneDispatchingEventAtCurrentTarget() override;
EventDispatchMediator* createMediator() override;
// Transient property to inform PPAPI of touch pointer types. Will be replaced
// when blink transitions to handling end-to-end pointer events.
WebPointerProperties::PointerType pointerType() const {
return m_pointerType;
}
DECLARE_VIRTUAL_TRACE();
private:
TouchEvent();
TouchEvent(TouchList* touches,
TouchList* targetTouches,
TouchList* changedTouches,
const AtomicString& type,
AbstractView*,
PlatformEvent::Modifiers,
bool cancelable,
bool causesScrollingIfUncanceled,
bool firstTouchMoveOrStart,
TimeTicks platformTimeStamp,
TouchAction currentTouchAction,
WebPointerProperties::PointerType);
TouchEvent(const AtomicString&, const TouchEventInit&);
Member<TouchList> m_touches;
Member<TouchList> m_targetTouches;
Member<TouchList> m_changedTouches;
bool m_causesScrollingIfUncanceled;
bool m_firstTouchMoveOrStart;
bool m_defaultPreventedBeforeCurrentTarget;
// The current effective touch action computed before each
// touchstart event is generated. It is used for UMA histograms.
TouchAction m_currentTouchAction;
WebPointerProperties::PointerType m_pointerType;
};
class TouchEventDispatchMediator final : public EventDispatchMediator {
public:
static TouchEventDispatchMediator* create(TouchEvent*);
private:
explicit TouchEventDispatchMediator(TouchEvent*);
TouchEvent& event() const;
DispatchEventResult dispatchEvent(EventDispatcher&) const override;
};
DEFINE_EVENT_TYPE_CASTS(TouchEvent);
} // namespace blink
#endif // TouchEvent_h
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