tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

Touch.h (3512B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef mozilla_dom_Touch_h_
      8 #define mozilla_dom_Touch_h_
      9 
     10 #include "Units.h"
     11 #include "mozilla/EventForwards.h"
     12 #include "mozilla/MouseEvents.h"
     13 #include "mozilla/dom/BindingDeclarations.h"
     14 #include "mozilla/dom/TouchBinding.h"
     15 #include "nsWrapperCache.h"
     16 
     17 class nsPresContext;
     18 
     19 namespace mozilla::dom {
     20 
     21 class EventTarget;
     22 
     23 class Touch final : public nsISupports,
     24                    public nsWrapperCache,
     25                    public WidgetPointerHelper {
     26 public:
     27  static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
     28 
     29  static already_AddRefed<Touch> Constructor(const GlobalObject& aGlobal,
     30                                             const TouchInit& aParam);
     31 
     32  Touch(EventTarget* aTarget, int32_t aIdentifier, int32_t aPageX,
     33        int32_t aPageY, int32_t aScreenX, int32_t aScreenY, int32_t aClientX,
     34        int32_t aClientY, int32_t aRadiusX, int32_t aRadiusY,
     35        float aRotationAngle, float aForce);
     36  Touch(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
     37        LayoutDeviceIntPoint aRadius, float aRotationAngle, float aForce);
     38  Touch(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
     39        LayoutDeviceIntPoint aRadius, float aRotationAngle, float aForce,
     40        int32_t aTiltX, int32_t aTiltY, int32_t aTwist);
     41  Touch(const Touch& aOther);
     42 
     43  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
     44  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Touch)
     45 
     46  void InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent);
     47 
     48  // Note, this sets both mOriginalTarget and mTarget.
     49  void SetTouchTarget(EventTarget* aTarget);
     50 
     51  bool Equals(Touch* aTouch) const;
     52 
     53  // Update this touch's touch area to be the same as aTouch
     54  void SetSameAs(const Touch* aTouch);
     55 
     56  virtual JSObject* WrapObject(JSContext* aCx,
     57                               JS::Handle<JSObject*> aGivenProto) override;
     58 
     59  nsIGlobalObject* GetParentObject() const;
     60 
     61  // WebIDL
     62  int32_t Identifier() const { return mIdentifier; }
     63  EventTarget* GetTarget() const;
     64  int32_t ScreenX(CallerType aCallerType) const;
     65  int32_t ScreenY(CallerType aCallerType) const;
     66  int32_t ClientX() const { return mClientPoint.x; }
     67  int32_t ClientY() const { return mClientPoint.y; }
     68  int32_t PageX() const { return mPagePoint.x; }
     69  int32_t PageY() const { return mPagePoint.y; }
     70  int32_t RadiusX(CallerType aCallerType) const;
     71  int32_t RadiusY(CallerType aCallerType) const;
     72  float RotationAngle(CallerType aCallerType) const;
     73  float Force(CallerType aCallerType) const;
     74 
     75  EventTarget* GetOriginalTarget() const;
     76 
     77  nsCOMPtr<EventTarget> mOriginalTarget;
     78  nsCOMPtr<EventTarget> mTarget;
     79  LayoutDeviceIntPoint mRefPoint;
     80  bool mChanged;
     81 
     82  // Is this touch instance being suppressed to dispatch touch event to content.
     83  // We can't remove touch instance from WidgetTouchEvent::mTouches because we
     84  // still need it when dispatching pointer events.
     85  bool mIsTouchEventSuppressed;
     86 
     87  uint32_t mMessage;
     88  int32_t mIdentifier;
     89  CSSIntPoint mPagePoint;
     90  CSSIntPoint mClientPoint;
     91  CSSIntPoint mScreenPoint;
     92  LayoutDeviceIntPoint mRadius;
     93  float mRotationAngle;
     94  float mForce;
     95 
     96 protected:
     97  ~Touch();
     98 
     99  bool mPointsInitialized;
    100 };
    101 
    102 }  // namespace mozilla::dom
    103 
    104 #endif  // mozilla_dom_Touch_h_