gecko-dev/dom/events/TouchEvent.h
2015-03-27 18:52:19 +00:00

135 lines
3.4 KiB
C++

/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
/* 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 = nullptr,
JSObject* aGlobal = nullptr);
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];
}
Touch* IdentifiedTouch(int32_t aIdentifier) const;
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);
}
TouchList* Touches();
TouchList* TargetTouches();
TouchList* ChangedTouches();
bool AltKey();
bool MetaKey();
bool CtrlKey();
bool ShiftKey();
void InitTouchEvent(const nsAString& aType,
bool aCanBubble,
bool aCancelable,
nsIDOMWindow* aView,
int32_t aDetail,
bool aCtrlKey,
bool aAltKey,
bool aShiftKey,
bool aMetaKey,
TouchList* aTouches,
TouchList* aTargetTouches,
TouchList* aChangedTouches,
ErrorResult& aRv);
static bool PrefEnabled(JSContext* aCx = nullptr,
JSObject* aGlobal = nullptr);
protected:
~TouchEvent() {}
nsRefPtr<TouchList> mTouches;
nsRefPtr<TouchList> mTargetTouches;
nsRefPtr<TouchList> mChangedTouches;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_TouchEvent_h_