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Diffstat (limited to 'dom/events/TouchEvent.h')
-rw-r--r-- | dom/events/TouchEvent.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/dom/events/TouchEvent.h b/dom/events/TouchEvent.h new file mode 100644 index 000000000..c92e9a490 --- /dev/null +++ b/dom/events/TouchEvent.h @@ -0,0 +1,145 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +#ifndef mozilla_dom_TouchEvent_h_ +#define mozilla_dom_TouchEvent_h_ + +#include "mozilla/dom/Touch.h" +#include "mozilla/dom/TouchEventBinding.h" +#include "mozilla/dom/UIEvent.h" +#include "mozilla/Attributes.h" +#include "mozilla/EventForwards.h" +#include "mozilla/TouchEvents.h" +#include "nsJSEnvironment.h" +#include "nsWrapperCache.h" + +class nsAString; + +namespace mozilla { +namespace dom { + +class TouchList final : public nsISupports + , public nsWrapperCache +{ +public: + NS_DECL_CYCLE_COLLECTING_ISUPPORTS + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TouchList) + + explicit TouchList(nsISupports* aParent) + : mParent(aParent) + { + nsJSContext::LikelyShortLivingObjectCreated(); + } + TouchList(nsISupports* aParent, + const WidgetTouchEvent::TouchArray& aTouches) + : mParent(aParent) + , mPoints(aTouches) + { + nsJSContext::LikelyShortLivingObjectCreated(); + } + + void Append(Touch* aPoint) + { + mPoints.AppendElement(aPoint); + } + + virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; + + nsISupports* GetParentObject() const + { + return mParent; + } + + static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal); + + uint32_t Length() const + { + return mPoints.Length(); + } + Touch* Item(uint32_t aIndex) const + { + return mPoints.SafeElementAt(aIndex); + } + Touch* IndexedGetter(uint32_t aIndex, bool& aFound) const + { + aFound = aIndex < mPoints.Length(); + if (!aFound) { + return nullptr; + } + return mPoints[aIndex]; + } + +protected: + ~TouchList() {} + + nsCOMPtr<nsISupports> mParent; + WidgetTouchEvent::TouchArray mPoints; +}; + +class TouchEvent : public UIEvent +{ +public: + TouchEvent(EventTarget* aOwner, + nsPresContext* aPresContext, + WidgetTouchEvent* aEvent); + + NS_DECL_ISUPPORTS_INHERITED + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TouchEvent, UIEvent) + + virtual JSObject* WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override + { + return TouchEventBinding::Wrap(aCx, this, aGivenProto); + } + + already_AddRefed<TouchList> + CopyTouches(const Sequence<OwningNonNull<Touch>>& aTouches); + + TouchList* Touches(); + TouchList* TargetTouches(); + TouchList* ChangedTouches(); + + bool AltKey(); + bool MetaKey(); + bool CtrlKey(); + bool ShiftKey(); + + void InitTouchEvent(const nsAString& aType, + bool aCanBubble, + bool aCancelable, + nsGlobalWindow* aView, + int32_t aDetail, + bool aCtrlKey, + bool aAltKey, + bool aShiftKey, + bool aMetaKey, + TouchList* aTouches, + TouchList* aTargetTouches, + TouchList* aChangedTouches); + + static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal); + static bool PrefEnabled(nsIDocShell* aDocShell); + + static already_AddRefed<Event> Constructor(const GlobalObject& aGlobal, + const nsAString& aType, + const TouchEventInit& aParam, + ErrorResult& aRv); + +protected: + ~TouchEvent() {} + + RefPtr<TouchList> mTouches; + RefPtr<TouchList> mTargetTouches; + RefPtr<TouchList> mChangedTouches; +}; + +} // namespace dom +} // namespace mozilla + +already_AddRefed<mozilla::dom::TouchEvent> +NS_NewDOMTouchEvent(mozilla::dom::EventTarget* aOwner, + nsPresContext* aPresContext, + mozilla::WidgetTouchEvent* aEvent); + +#endif // mozilla_dom_TouchEvent_h_ |