зеркало из https://github.com/mozilla/gecko-dev.git
321 строка
11 KiB
C++
321 строка
11 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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/*
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* Base class for all our document implementations.
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*/
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#ifndef nsDocument_h___
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#define nsDocument_h___
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#include "nsIDocument.h"
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#include "jsfriendapi.h"
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#include "nsCOMPtr.h"
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#include "nsAutoPtr.h"
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#include "nsCRT.h"
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#include "nsWeakReference.h"
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#include "nsWeakPtr.h"
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#include "nsTArray.h"
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#include "nsIdentifierMapEntry.h"
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#include "nsStubDocumentObserver.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIContent.h"
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#include "nsIPrincipal.h"
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#include "nsIParser.h"
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#include "nsBindingManager.h"
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#include "nsRefPtrHashtable.h"
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#include "nsJSThingHashtable.h"
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#include "nsIScriptObjectPrincipal.h"
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#include "nsIRadioGroupContainer.h"
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#include "nsILayoutHistoryState.h"
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#include "nsIRequest.h"
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#include "nsILoadGroup.h"
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#include "nsTObserverArray.h"
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#include "nsStubMutationObserver.h"
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#include "nsIChannel.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsContentList.h"
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#include "nsGkAtoms.h"
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#include "PLDHashTable.h"
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#include "nsDOMAttributeMap.h"
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#include "imgIRequest.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/PendingAnimationTracker.h"
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#include "mozilla/dom/BoxObject.h"
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#include "mozilla/dom/DOMImplementation.h"
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#include "mozilla/dom/ScriptLoader.h"
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#include "mozilla/dom/StyleSheetList.h"
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#include "nsDataHashtable.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/Attributes.h"
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#include "CustomElementRegistry.h"
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#include "mozilla/dom/Performance.h"
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#include "mozilla/Maybe.h"
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#include "nsIURIClassifier.h"
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#define XML_DECLARATION_BITS_DECLARATION_EXISTS (1 << 0)
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#define XML_DECLARATION_BITS_ENCODING_EXISTS (1 << 1)
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#define XML_DECLARATION_BITS_STANDALONE_EXISTS (1 << 2)
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#define XML_DECLARATION_BITS_STANDALONE_YES (1 << 3)
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class nsDOMStyleSheetSetList;
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class nsDocument;
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class nsIFormControl;
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class nsOnloadBlocker;
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class nsDOMNavigationTiming;
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class nsWindowSizes;
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class nsHtml5TreeOpExecutor;
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class nsDocumentOnStack;
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class nsISecurityConsoleMessage;
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namespace mozilla {
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class EventChainPreVisitor;
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namespace dom {
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class ImageTracker;
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struct LifecycleCallbacks;
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class CallbackFunction;
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class DOMIntersectionObserver;
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class Performance;
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} // namespace dom
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} // namespace mozilla
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class nsOnloadBlocker final : public nsIRequest
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{
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public:
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nsOnloadBlocker() {}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIREQUEST
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private:
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~nsOnloadBlocker() {}
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};
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// Base class for our document implementations.
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class nsDocument : public nsIDocument,
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public nsSupportsWeakReference,
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public nsIScriptObjectPrincipal,
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public nsIRadioGroupContainer,
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public nsIApplicationCacheContainer,
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public nsStubMutationObserver
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{
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friend class nsIDocument;
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public:
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typedef mozilla::dom::Element Element;
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typedef mozilla::net::ReferrerPolicy ReferrerPolicy;
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_ADDSIZEOFEXCLUDINGTHIS
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// StartDocumentLoad is pure virtual so that subclasses must override it.
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// The nsDocument StartDocumentLoad does some setup, but does NOT set
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// *aDocListener; this is the job of subclasses.
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virtual nsresult StartDocumentLoad(const char* aCommand,
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nsIChannel* aChannel,
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nsILoadGroup* aLoadGroup,
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nsISupports* aContainer,
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nsIStreamListener **aDocListener,
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bool aReset = true,
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nsIContentSink* aContentSink = nullptr) override = 0;
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virtual void StopDocumentLoad() override;
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static bool DocumentSupportsL10n(JSContext* aCx, JSObject* aObject);
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static bool IsWebAnimationsEnabled(JSContext* aCx, JSObject* aObject);
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static bool IsWebAnimationsEnabled(mozilla::dom::CallerType aCallerType);
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static bool IsWebAnimationsGetAnimationsEnabled(JSContext* aCx,
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JSObject* aObject);
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static bool AreWebAnimationsImplicitKeyframesEnabled(JSContext* aCx,
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JSObject* aObject);
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static bool AreWebAnimationsTimelinesEnabled(JSContext* aCx,
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JSObject* aObject);
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virtual void EndUpdate() override;
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virtual void BeginLoad() override;
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virtual void EndLoad() override;
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// nsIRadioGroupContainer
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NS_IMETHOD WalkRadioGroup(const nsAString& aName,
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nsIRadioVisitor* aVisitor,
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bool aFlushContent) override
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{
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return DocumentOrShadowRoot::WalkRadioGroup(aName, aVisitor, aFlushContent);
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}
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virtual void
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SetCurrentRadioButton(const nsAString& aName,
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mozilla::dom::HTMLInputElement* aRadio) override
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{
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DocumentOrShadowRoot::SetCurrentRadioButton(aName, aRadio);
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}
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virtual mozilla::dom::HTMLInputElement*
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GetCurrentRadioButton(const nsAString& aName) override
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{
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return DocumentOrShadowRoot::GetCurrentRadioButton(aName);
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}
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NS_IMETHOD
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GetNextRadioButton(const nsAString& aName,
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const bool aPrevious,
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mozilla::dom::HTMLInputElement* aFocusedRadio,
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mozilla::dom::HTMLInputElement** aRadioOut) override
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{
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return DocumentOrShadowRoot::GetNextRadioButton(aName, aPrevious,
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aFocusedRadio, aRadioOut);
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}
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virtual void AddToRadioGroup(const nsAString& aName,
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mozilla::dom::HTMLInputElement* aRadio) override
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{
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DocumentOrShadowRoot::AddToRadioGroup(aName, aRadio);
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}
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virtual void RemoveFromRadioGroup(const nsAString& aName,
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mozilla::dom::HTMLInputElement* aRadio) override
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{
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DocumentOrShadowRoot::RemoveFromRadioGroup(aName, aRadio);
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}
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virtual uint32_t GetRequiredRadioCount(const nsAString& aName) const override
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{
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return DocumentOrShadowRoot::GetRequiredRadioCount(aName);
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}
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virtual void RadioRequiredWillChange(const nsAString& aName,
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bool aRequiredAdded) override
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{
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DocumentOrShadowRoot::RadioRequiredWillChange(aName, aRequiredAdded);
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}
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virtual bool GetValueMissingState(const nsAString& aName) const override
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{
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return DocumentOrShadowRoot::GetValueMissingState(aName);
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}
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virtual void SetValueMissingState(const nsAString& aName, bool aValue) override
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{
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return DocumentOrShadowRoot::SetValueMissingState(aName, aValue);
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}
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// Check whether shadow DOM is enabled for aGlobal.
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static bool IsShadowDOMEnabled(JSContext* aCx, JSObject* aGlobal);
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// Check whether shadow DOM is enabled for the document this node belongs to.
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// Same as above, but also checks that the caller is either chrome or some addon.
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static bool IsShadowDOMEnabledAndCallerIsChromeOrAddon(JSContext* aCx, JSObject* aObject);
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static bool IsShadowDOMEnabled(const nsINode* aNode);
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public:
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using mozilla::dom::DocumentOrShadowRoot::GetElementById;
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using mozilla::dom::DocumentOrShadowRoot::GetElementsByTagName;
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using mozilla::dom::DocumentOrShadowRoot::GetElementsByTagNameNS;
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using mozilla::dom::DocumentOrShadowRoot::GetElementsByClassName;
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// EventTarget
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void GetEventTargetParent(mozilla::EventChainPreVisitor& aVisitor) override;
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virtual mozilla::EventListenerManager*
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GetOrCreateListenerManager() override;
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virtual mozilla::EventListenerManager*
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GetExistingListenerManager() const override;
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// nsIScriptObjectPrincipal
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virtual nsIPrincipal* GetPrincipal() override;
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// nsIApplicationCacheContainer
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NS_DECL_NSIAPPLICATIONCACHECONTAINER
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virtual nsresult Init();
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virtual void Destroy() override;
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virtual void RemovedFromDocShell() override;
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virtual void BlockOnload() override;
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virtual void UnblockOnload(bool aFireSync) override;
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NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsDocument,
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nsIDocument)
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void SetLoadedAsData(bool aLoadedAsData) { mLoadedAsData = aLoadedAsData; }
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void SetLoadedAsInteractiveData(bool aLoadedAsInteractiveData)
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{
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mLoadedAsInteractiveData = aLoadedAsInteractiveData;
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}
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nsresult CloneDocHelper(nsDocument* clone) const;
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// Only BlockOnload should call this!
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void AsyncBlockOnload();
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virtual void DocAddSizeOfExcludingThis(nsWindowSizes& aWindowSizes) const override;
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// DocAddSizeOfIncludingThis is inherited from nsIDocument.
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protected:
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friend class nsNodeUtils;
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void RetrieveRelevantHeaders(nsIChannel *aChannel);
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void TryChannelCharset(nsIChannel *aChannel,
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int32_t& aCharsetSource,
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NotNull<const Encoding*>& aEncoding,
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nsHtml5TreeOpExecutor* aExecutor);
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nsIContent* GetFirstBaseNodeWithHref();
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nsresult SetFirstBaseNodeWithHref(nsIContent *node);
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#define NS_DOCUMENT_NOTIFY_OBSERVERS(func_, params_) do { \
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NS_OBSERVER_ARRAY_NOTIFY_XPCOM_OBSERVERS(mObservers, nsIDocumentObserver, \
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func_, params_); \
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/* FIXME(emilio): Apparently we can keep observing from the BFCache? That \
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looks bogus. */ \
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if (nsIPresShell* shell = GetObservingShell()) { \
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shell->func_ params_; \
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} \
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} while(0)
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#ifdef DEBUG
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void VerifyRootContentState();
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#endif
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explicit nsDocument(const char* aContentType);
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virtual ~nsDocument();
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public:
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// FIXME(emilio): This needs to be here instead of in nsIDocument because Rust
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// can't represent alignas(8) values on 32-bit architectures, which would
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// cause nsIDocument's layout to be wrong in the Rust side.
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//
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// This can be fixed after updating to rust 1.25 and updating bindgen to
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// include https://github.com/rust-lang-nursery/rust-bindgen/pull/1271.
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js::ExpandoAndGeneration mExpandoAndGeneration;
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friend class nsCallRequestFullscreen;
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// The application cache that this document is associated with, if
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// any. This can change during the lifetime of the document.
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nsCOMPtr<nsIApplicationCache> mApplicationCache;
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nsCOMPtr<nsIContent> mFirstBaseNodeWithHref;
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private:
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friend class nsUnblockOnloadEvent;
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// These are not implemented and not supported.
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nsDocument(const nsDocument& aOther);
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nsDocument& operator=(const nsDocument& aOther);
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};
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class nsDocumentOnStack
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{
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public:
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explicit nsDocumentOnStack(nsIDocument* aDoc) : mDoc(aDoc)
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{
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mDoc->IncreaseStackRefCnt();
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}
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~nsDocumentOnStack()
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{
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mDoc->DecreaseStackRefCnt();
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}
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private:
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nsIDocument* mDoc;
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};
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#endif /* nsDocument_h___ */
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