gecko-dev/dom/events/UIEvent.h

127 строки
3.3 KiB
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/* -*- 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_UIEvent_h_
#define mozilla_dom_UIEvent_h_
#include "mozilla/Attributes.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/UIEventBinding.h"
#include "nsDeviceContext.h"
#include "nsLayoutUtils.h"
#include "nsPresContext.h"
class nsINode;
namespace mozilla {
namespace dom {
class UIEvent : public Event
{
public:
UIEvent(EventTarget* aOwner,
nsPresContext* aPresContext,
WidgetGUIEvent* aEvent);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(UIEvent, Event)
NS_IMETHOD DuplicatePrivateData() override;
NS_IMETHOD_(void) Serialize(IPC::Message* aMsg, bool aSerializeInterfaceType) override;
NS_IMETHOD_(bool) Deserialize(const IPC::Message* aMsg, PickleIterator* aIter) override;
static already_AddRefed<UIEvent> Constructor(const GlobalObject& aGlobal,
const nsAString& aType,
const UIEventInit& aParam,
ErrorResult& aRv);
virtual JSObject*
WrapObjectInternal(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override
{
return UIEventBinding::Wrap(aCx, this, aGivenProto);
}
UIEvent* AsUIEvent() override
{
return this;
}
void InitUIEvent(const nsAString& typeArg,
bool canBubbleArg,
bool cancelableArg,
nsGlobalWindowInner* viewArg,
int32_t detailArg);
nsPIDOMWindowOuter* GetView() const
{
return mView;
}
int32_t Detail() const
{
return mDetail;
}
int32_t LayerX() const
{
return GetLayerPoint().x;
}
int32_t LayerY() const
{
return GetLayerPoint().y;
}
int32_t PageX() const;
int32_t PageY() const;
virtual uint32_t Which(CallerType aCallerType = CallerType::System)
{
MOZ_ASSERT(mEvent->mClass != eKeyboardEventClass,
"Key events should override Which()");
MOZ_ASSERT(mEvent->mClass != eMouseEventClass,
"Mouse events should override Which()");
return 0;
}
already_AddRefed<nsINode> GetRangeParent();
int32_t RangeOffset() const;
protected:
~UIEvent() {}
// Internal helper functions
nsIntPoint GetMovementPoint();
nsIntPoint GetLayerPoint() const;
nsCOMPtr<nsPIDOMWindowOuter> mView;
int32_t mDetail;
CSSIntPoint mClientPoint;
// Screenpoint is mEvent->mRefPoint.
nsIntPoint mLayerPoint;
CSSIntPoint mPagePoint;
nsIntPoint mMovementPoint;
bool mIsPointerLocked;
CSSIntPoint mLastClientPoint;
static Modifiers ComputeModifierState(const nsAString& aModifiersList);
bool GetModifierStateInternal(const nsAString& aKey);
void InitModifiers(const EventModifierInit& aParam);
};
} // namespace dom
} // namespace mozilla
already_AddRefed<mozilla::dom::UIEvent>
NS_NewDOMUIEvent(mozilla::dom::EventTarget* aOwner,
nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent);
#endif // mozilla_dom_UIEvent_h_