/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_Touch_h_
#define mozilla_dom_Touch_h_
#include "mozilla/Attributes.h"
#include "mozilla/EventForwards.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/TouchBinding.h"
#include "nsWrapperCache.h"
#include "Units.h"
class nsPresContext;
namespace mozilla::dom {
class EventTarget;
class Touch final :
public nsISupports,
public nsWrapperCache,
public WidgetPointerHelper {
public:
static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
static already_AddRefed<Touch> Constructor(
const GlobalObject& aGlobal,
const TouchInit& aParam);
Touch(EventTarget* aTarget, int32_t aIdentifier, int32_t aPageX,
int32_t aPageY, int32_t aScreenX, int32_t aScreenY, int32_t aClientX,
int32_t aClientY, int32_t aRadiusX, int32_t aRadiusY,
float aRotationAngle,
float aForce);
Touch(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
LayoutDeviceIntPoint aRadius,
float aRotationAngle,
float aForce);
Touch(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
LayoutDeviceIntPoint aRadius,
float aRotationAngle,
float aForce,
int32_t aTiltX, int32_t aTiltY, int32_t aTwist);
Touch(
const Touch& aOther);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Touch)
void InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent);
// Note, this sets both mOriginalTarget and mTarget.
void SetTouchTarget(EventTarget* aTarget);
bool Equals(Touch* aTouch)
const;
// Update this touch's touch area to be the same as aTouch
void SetSameAs(
const Touch* aTouch);
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
nsIGlobalObject* GetParentObject()
const;
// WebIDL
int32_t Identifier()
const {
return mIdentifier; }
EventTarget* GetTarget()
const;
int32_t ScreenX(CallerType aCallerType)
const;
int32_t ScreenY(CallerType aCallerType)
const;
int32_t ClientX()
const {
return mClientPoint.x; }
int32_t ClientY()
const {
return mClientPoint.y; }
int32_t PageX()
const {
return mPagePoint.x; }
int32_t PageY()
const {
return mPagePoint.y; }
int32_t RadiusX(CallerType aCallerType)
const;
int32_t RadiusY(CallerType aCallerType)
const;
float RotationAngle(CallerType aCallerType)
const;
float Force(CallerType aCallerType)
const;
EventTarget* GetOriginalTarget()
const;
nsCOMPtr<EventTarget> mOriginalTarget;
nsCOMPtr<EventTarget> mTarget;
LayoutDeviceIntPoint mRefPoint;
bool mChanged;
// Is this touch instance being suppressed to dispatch touch event to content.
// We can't remove touch instance from WidgetTouchEvent::mTouches because we
// still need it when dispatching pointer events.
bool mIsTouchEventSuppressed;
uint32_t mMessage;
int32_t mIdentifier;
CSSIntPoint mPagePoint;
CSSIntPoint mClientPoint;
CSSIntPoint mScreenPoint;
LayoutDeviceIntPoint mRadius;
float mRotationAngle;
float mForce;
protected:
~Touch();
bool mPointsInitialized;
};
}
// namespace mozilla::dom
#endif // mozilla_dom_Touch_h_
