dom/events/Touch.h

   1 /* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_dom_Touch_h_
   7 #define mozilla_dom_Touch_h_
   8
   9 #include "mozilla/Attributes.h"
  10 #include "mozilla/EventForwards.h"
  11 #include "mozilla/MouseEvents.h"
  12 #include "nsWrapperCache.h"
  13 #include "nsAutoPtr.h"
  14 #include "Units.h"
  15
  16 class nsPresContext;
  17
  18 namespace mozilla {
  19 namespace dom {
  20
  21 class EventTarget;
  22
  23 class Touch MOZ_FINAL : public nsISupports
  24                       , public nsWrapperCache
  25                       , public WidgetPointerHelper
  26 {
  27 public:
  28   static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
  29
  30   Touch(EventTarget* aTarget,
  31         int32_t aIdentifier,
  32         int32_t aPageX,
  33         int32_t aPageY,
  34         int32_t aScreenX,
  35         int32_t aScreenY,
  36         int32_t aClientX,
  37         int32_t aClientY,
  38         int32_t aRadiusX,
  39         int32_t aRadiusY,
  40         float aRotationAngle,
  41         float aForce);
  42   Touch(int32_t aIdentifier,
  43         nsIntPoint aPoint,
  44         nsIntPoint aRadius,
  45         float aRotationAngle,
  46         float aForce);
  47
  48   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  49   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(Touch)
  50
  51   void InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent);
  52
  53   void SetTarget(EventTarget* aTarget);
  54
  55   bool Equals(Touch* aTouch);
  56
  57   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
  58
  59   EventTarget* GetParentObject();
  60
  61   // WebIDL
  62   int32_t Identifier() const { return mIdentifier; }
  63   EventTarget* GetTarget() const;
  64   int32_t ScreenX() const { return mScreenPoint.x; }
  65   int32_t ScreenY() const { return mScreenPoint.y; }
  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() const { return mRadius.x; }
  71   int32_t RadiusY() const { return mRadius.y; }
  72   float RotationAngle() const { return mRotationAngle; }
  73   float Force() const { return mForce; }
  74
  75   nsCOMPtr<EventTarget> mTarget;
  76   nsIntPoint mRefPoint;
  77   bool mChanged;
  78   uint32_t mMessage;
  79   int32_t mIdentifier;
  80   CSSIntPoint mPagePoint;
  81   CSSIntPoint mClientPoint;
  82   nsIntPoint mScreenPoint;
  83   nsIntPoint mRadius;
  84   float mRotationAngle;
  85   float mForce;
  86 protected:
  87   ~Touch();
  88
  89   bool mPointsInitialized;
  90 };
  91
  92 } // namespace dom
  93 } // namespace mozilla
  94
  95 #endif // mozilla_dom_Touch_h_