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       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 "mozilla/Attributes.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             : #include "Units.h"
      17             : 
      18             : class nsPresContext;
      19             : 
      20             : namespace mozilla {
      21             : namespace dom {
      22             : 
      23             : class EventTarget;
      24             : 
      25             : class Touch final : public nsISupports
      26             :                   , public nsWrapperCache
      27             :                   , public WidgetPointerHelper
      28             : {
      29             : public:
      30             :   static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
      31             : 
      32             :   static already_AddRefed<Touch> Constructor(const GlobalObject& aGlobal,
      33             :                                              const TouchInit& aParam,
      34             :                                              ErrorResult& aRv);
      35             : 
      36             :   Touch(EventTarget* aTarget,
      37             :         int32_t aIdentifier,
      38             :         int32_t aPageX,
      39             :         int32_t aPageY,
      40             :         int32_t aScreenX,
      41             :         int32_t aScreenY,
      42             :         int32_t aClientX,
      43             :         int32_t aClientY,
      44             :         int32_t aRadiusX,
      45             :         int32_t aRadiusY,
      46             :         float aRotationAngle,
      47             :         float aForce);
      48             :   Touch(int32_t aIdentifier,
      49             :         LayoutDeviceIntPoint aPoint,
      50             :         LayoutDeviceIntPoint aRadius,
      51             :         float aRotationAngle,
      52             :         float aForce);
      53             :   Touch(const Touch& aOther);
      54             : 
      55             :   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
      56           0 :   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(Touch)
      57             : 
      58             :   void InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent);
      59             : 
      60             :   void SetTarget(EventTarget* aTarget);
      61             : 
      62             :   bool Equals(Touch* aTouch);
      63             : 
      64             :   virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
      65             : 
      66             :   nsIGlobalObject* GetParentObject();
      67             : 
      68             :   // WebIDL
      69           0 :   int32_t Identifier() const { return mIdentifier; }
      70             :   EventTarget* GetTarget() const;
      71             :   int32_t ScreenX(CallerType aCallerType) const;
      72             :   int32_t ScreenY(CallerType aCallerType) const;
      73           0 :   int32_t ClientX() const { return mClientPoint.x; }
      74           0 :   int32_t ClientY() const { return mClientPoint.y; }
      75           0 :   int32_t PageX() const { return mPagePoint.x; }
      76           0 :   int32_t PageY() const { return mPagePoint.y; }
      77           0 :   int32_t RadiusX() const { return mRadius.x; }
      78           0 :   int32_t RadiusY() const { return mRadius.y; }
      79           0 :   float RotationAngle() const { return mRotationAngle; }
      80           0 :   float Force() const { return mForce; }
      81             : 
      82             :   nsCOMPtr<EventTarget> mTarget;
      83             :   LayoutDeviceIntPoint mRefPoint;
      84             :   bool mChanged;
      85             :   uint32_t mMessage;
      86             :   int32_t mIdentifier;
      87             :   CSSIntPoint mPagePoint;
      88             :   CSSIntPoint mClientPoint;
      89             :   CSSIntPoint mScreenPoint;
      90             :   LayoutDeviceIntPoint mRadius;
      91             :   float mRotationAngle;
      92             :   float mForce;
      93             : protected:
      94             :   ~Touch();
      95             : 
      96             :   bool mPointsInitialized;
      97             : };
      98             : 
      99             : } // namespace dom
     100             : } // namespace mozilla
     101             : 
     102             : #endif // mozilla_dom_Touch_h_