The Tor Browser: dom/events/TouchEvent.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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 #ifndef mozilla_dom_TouchEvent_h_

     6 #define mozilla_dom_TouchEvent_h_

     8 #include "mozilla/dom/Touch.h"

     9 #include "mozilla/dom/TouchEventBinding.h"

    10 #include "mozilla/dom/UIEvent.h"

    11 #include "mozilla/Attributes.h"

    12 #include "mozilla/EventForwards.h"

    13 #include "nsJSEnvironment.h"

    14 #include "nsTArray.h"

    15 #include "nsWrapperCache.h"

    17 class nsAString;

    19 namespace mozilla {

    20 namespace dom {

    22 class TouchList MOZ_FINAL : public nsISupports

    23                           , public nsWrapperCache

    24 {

    25 public:

    26   NS_DECL_CYCLE_COLLECTING_ISUPPORTS

    27   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TouchList)

    29   TouchList(nsISupports* aParent)

    30     : mParent(aParent)

    31   {

    32     SetIsDOMBinding();

    33     nsJSContext::LikelyShortLivingObjectCreated();

    34   }

    35   TouchList(nsISupports* aParent,

    36             const nsTArray<nsRefPtr<Touch> >& aTouches)

    37     : mParent(aParent)

    38     , mPoints(aTouches)

    39   {

    40     SetIsDOMBinding();

    41     nsJSContext::LikelyShortLivingObjectCreated();

    42   }

    44   void Append(Touch* aPoint)

    45   {

    46     mPoints.AppendElement(aPoint);

    47   }

    49   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;

    51   nsISupports* GetParentObject() const

    52   {

    53     return mParent;

    54   }

    56   static bool PrefEnabled(JSContext* aCx = nullptr,

    57                           JSObject* aGlobal = nullptr);

    59   uint32_t Length() const

    60   {

    61     return mPoints.Length();

    62   }

    63   Touch* Item(uint32_t aIndex) const

    64   {

    65     return mPoints.SafeElementAt(aIndex);

    66   }

    67   Touch* IndexedGetter(uint32_t aIndex, bool& aFound) const

    68   {

    69     aFound = aIndex < mPoints.Length();

    70     if (!aFound) {

    71       return nullptr;

    72     }

    73     return mPoints[aIndex];

    74   }

    75   Touch* IdentifiedTouch(int32_t aIdentifier) const;

    77 protected:

    78   nsCOMPtr<nsISupports> mParent;

    79   nsTArray<nsRefPtr<Touch> > mPoints;

    80 };

    82 class TouchEvent : public UIEvent

    83 {

    84 public:

    85   TouchEvent(EventTarget* aOwner,

    86              nsPresContext* aPresContext,

    87              WidgetTouchEvent* aEvent);

    89   NS_DECL_ISUPPORTS_INHERITED

    90   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TouchEvent, UIEvent)

    92   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE

    93   {

    94     return TouchEventBinding::Wrap(aCx, this);

    95   }

    97   TouchList* Touches();

    98   TouchList* TargetTouches();

    99   TouchList* ChangedTouches();

   101   bool AltKey();

   102   bool MetaKey();

   103   bool CtrlKey();

   104   bool ShiftKey();

   106   void InitTouchEvent(const nsAString& aType,

   107                       bool aCanBubble,

   108                       bool aCancelable,

   109                       nsIDOMWindow* aView,

   110                       int32_t aDetail,

   111                       bool aCtrlKey,

   112                       bool aAltKey,

   113                       bool aShiftKey,

   114                       bool aMetaKey,

   115                       TouchList* aTouches,

   116                       TouchList* aTargetTouches,

   117                       TouchList* aChangedTouches,

   118                       ErrorResult& aRv);

   120   static bool PrefEnabled(JSContext* aCx = nullptr,

   121                           JSObject* aGlobal = nullptr);

   122 protected:

   123   nsRefPtr<TouchList> mTouches;

   124   nsRefPtr<TouchList> mTargetTouches;

   125   nsRefPtr<TouchList> mChangedTouches;

   126 };

   128 } // namespace dom

   129 } // namespace mozilla

   131 #endif // mozilla_dom_TouchEvent_h_

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