dom/events/TouchEvent.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5 #ifndef mozilla_dom_TouchEvent_h_
michael@0 6 #define mozilla_dom_TouchEvent_h_
michael@0 7
michael@0 8 #include "mozilla/dom/Touch.h"
michael@0 9 #include "mozilla/dom/TouchEventBinding.h"
michael@0 10 #include "mozilla/dom/UIEvent.h"
michael@0 11 #include "mozilla/Attributes.h"
michael@0 12 #include "mozilla/EventForwards.h"
michael@0 13 #include "nsJSEnvironment.h"
michael@0 14 #include "nsTArray.h"
michael@0 15 #include "nsWrapperCache.h"
michael@0 16
michael@0 17 class nsAString;
michael@0 18
michael@0 19 namespace mozilla {
michael@0 20 namespace dom {
michael@0 21
michael@0 22 class TouchList MOZ_FINAL : public nsISupports
michael@0 23 , public nsWrapperCache
michael@0 24 {
michael@0 25 public:
michael@0 26 NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0 27 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TouchList)
michael@0 28
michael@0 29 TouchList(nsISupports* aParent)
michael@0 30 : mParent(aParent)
michael@0 31 {
michael@0 32 SetIsDOMBinding();
michael@0 33 nsJSContext::LikelyShortLivingObjectCreated();
michael@0 34 }
michael@0 35 TouchList(nsISupports* aParent,
michael@0 36 const nsTArray<nsRefPtr<Touch> >& aTouches)
michael@0 37 : mParent(aParent)
michael@0 38 , mPoints(aTouches)
michael@0 39 {
michael@0 40 SetIsDOMBinding();
michael@0 41 nsJSContext::LikelyShortLivingObjectCreated();
michael@0 42 }
michael@0 43
michael@0 44 void Append(Touch* aPoint)
michael@0 45 {
michael@0 46 mPoints.AppendElement(aPoint);
michael@0 47 }
michael@0 48
michael@0 49 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0 50
michael@0 51 nsISupports* GetParentObject() const
michael@0 52 {
michael@0 53 return mParent;
michael@0 54 }
michael@0 55
michael@0 56 static bool PrefEnabled(JSContext* aCx = nullptr,
michael@0 57 JSObject* aGlobal = nullptr);
michael@0 58
michael@0 59 uint32_t Length() const
michael@0 60 {
michael@0 61 return mPoints.Length();
michael@0 62 }
michael@0 63 Touch* Item(uint32_t aIndex) const
michael@0 64 {
michael@0 65 return mPoints.SafeElementAt(aIndex);
michael@0 66 }
michael@0 67 Touch* IndexedGetter(uint32_t aIndex, bool& aFound) const
michael@0 68 {
michael@0 69 aFound = aIndex < mPoints.Length();
michael@0 70 if (!aFound) {
michael@0 71 return nullptr;
michael@0 72 }
michael@0 73 return mPoints[aIndex];
michael@0 74 }
michael@0 75 Touch* IdentifiedTouch(int32_t aIdentifier) const;
michael@0 76
michael@0 77 protected:
michael@0 78 nsCOMPtr<nsISupports> mParent;
michael@0 79 nsTArray<nsRefPtr<Touch> > mPoints;
michael@0 80 };
michael@0 81
michael@0 82 class TouchEvent : public UIEvent
michael@0 83 {
michael@0 84 public:
michael@0 85 TouchEvent(EventTarget* aOwner,
michael@0 86 nsPresContext* aPresContext,
michael@0 87 WidgetTouchEvent* aEvent);
michael@0 88
michael@0 89 NS_DECL_ISUPPORTS_INHERITED
michael@0 90 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TouchEvent, UIEvent)
michael@0 91
michael@0 92 virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE
michael@0 93 {
michael@0 94 return TouchEventBinding::Wrap(aCx, this);
michael@0 95 }
michael@0 96
michael@0 97 TouchList* Touches();
michael@0 98 TouchList* TargetTouches();
michael@0 99 TouchList* ChangedTouches();
michael@0 100
michael@0 101 bool AltKey();
michael@0 102 bool MetaKey();
michael@0 103 bool CtrlKey();
michael@0 104 bool ShiftKey();
michael@0 105
michael@0 106 void InitTouchEvent(const nsAString& aType,
michael@0 107 bool aCanBubble,
michael@0 108 bool aCancelable,
michael@0 109 nsIDOMWindow* aView,
michael@0 110 int32_t aDetail,
michael@0 111 bool aCtrlKey,
michael@0 112 bool aAltKey,
michael@0 113 bool aShiftKey,
michael@0 114 bool aMetaKey,
michael@0 115 TouchList* aTouches,
michael@0 116 TouchList* aTargetTouches,
michael@0 117 TouchList* aChangedTouches,
michael@0 118 ErrorResult& aRv);
michael@0 119
michael@0 120 static bool PrefEnabled(JSContext* aCx = nullptr,
michael@0 121 JSObject* aGlobal = nullptr);
michael@0 122 protected:
michael@0 123 nsRefPtr<TouchList> mTouches;
michael@0 124 nsRefPtr<TouchList> mTargetTouches;
michael@0 125 nsRefPtr<TouchList> mChangedTouches;
michael@0 126 };
michael@0 127
michael@0 128 } // namespace dom
michael@0 129 } // namespace mozilla
michael@0 130
michael@0 131 #endif // mozilla_dom_TouchEvent_h_

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