зеркало из https://github.com/mozilla/gecko-dev.git
126 строки
4.0 KiB
C++
126 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_UIEvent_h_
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#define mozilla_dom_UIEvent_h_
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/Nullable.h"
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#include "mozilla/dom/UIEventBinding.h"
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#include "mozilla/dom/WindowProxyHolder.h"
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#include "nsDeviceContext.h"
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#include "nsDocShell.h"
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#include "nsIContent.h"
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#include "nsPresContext.h"
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class nsINode;
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namespace mozilla {
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namespace dom {
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class UIEvent : public Event {
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public:
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UIEvent(EventTarget* aOwner, nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(UIEvent, Event)
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void DuplicatePrivateData() override;
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void Serialize(IPC::Message* aMsg, bool aSerializeInterfaceType) override;
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bool Deserialize(const IPC::Message* aMsg, PickleIterator* aIter) override;
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static already_AddRefed<UIEvent> Constructor(const GlobalObject& aGlobal,
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const nsAString& aType,
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const UIEventInit& aParam);
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virtual JSObject* WrapObjectInternal(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override {
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return UIEvent_Binding::Wrap(aCx, this, aGivenProto);
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}
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UIEvent* AsUIEvent() override { return this; }
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void InitUIEvent(const nsAString& typeArg, bool canBubbleArg,
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bool cancelableArg, nsGlobalWindowInner* viewArg,
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int32_t detailArg);
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Nullable<WindowProxyHolder> GetView() const {
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if (!mView) {
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return nullptr;
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}
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return WindowProxyHolder(mView->GetBrowsingContext());
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}
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int32_t Detail() const { return mDetail; }
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int32_t LayerX() const { return GetLayerPoint().x; }
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int32_t LayerY() const { return GetLayerPoint().y; }
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virtual uint32_t Which(CallerType aCallerType = CallerType::System) {
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MOZ_ASSERT(mEvent->mClass != eKeyboardEventClass,
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"Key events should override Which()");
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MOZ_ASSERT(mEvent->mClass != eMouseEventClass,
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"Mouse events should override Which()");
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return 0;
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}
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/**
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* GetRangeParent() should be used only by JS. C++ callers should use
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* GetRangeParentContent() or GetRangeParentContentAndOffset() instead.
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*/
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MOZ_CAN_RUN_SCRIPT already_AddRefed<nsINode> GetRangeParent() {
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return GetRangeParentContent();
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}
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MOZ_CAN_RUN_SCRIPT already_AddRefed<nsIContent> GetRangeParentContent() {
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return GetRangeParentContentAndOffset(nullptr);
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}
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/**
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* aOffset is optional (i.e., can be nullptr), but when you call this with
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* nullptr, you should use GetRangeParentContent() instead.
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*/
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MOZ_CAN_RUN_SCRIPT already_AddRefed<nsIContent>
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GetRangeParentContentAndOffset(int32_t* aOffset) const;
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/**
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* If you also need to compute range parent in C++ code, you should use
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* GetRangeParentContentAndOffset() instead.
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*/
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MOZ_CAN_RUN_SCRIPT int32_t RangeOffset() const;
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protected:
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~UIEvent() = default;
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// Internal helper functions
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nsIntPoint GetMovementPoint();
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nsIntPoint GetLayerPoint() const;
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nsCOMPtr<nsPIDOMWindowOuter> mView;
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int32_t mDetail;
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CSSIntPoint mClientPoint;
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// Screenpoint is mEvent->mRefPoint.
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nsIntPoint mLayerPoint;
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CSSIntPoint mPagePoint;
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nsIntPoint mMovementPoint;
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bool mIsPointerLocked;
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CSSIntPoint mLastClientPoint;
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static Modifiers ComputeModifierState(const nsAString& aModifiersList);
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bool GetModifierStateInternal(const nsAString& aKey);
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void InitModifiers(const EventModifierInit& aParam);
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};
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} // namespace dom
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} // namespace mozilla
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already_AddRefed<mozilla::dom::UIEvent> NS_NewDOMUIEvent(
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mozilla::dom::EventTarget* aOwner, nsPresContext* aPresContext,
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mozilla::WidgetGUIEvent* aEvent);
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#endif // mozilla_dom_UIEvent_h_
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