gecko/dom/base/nsIDocument.h
Ehsan Akhgari 860a734ba5 Bug 1222464 - Part 1: Save a client ID for top-level navigations on the docshell and assign it as the document ID when we start loading the document; r=jdm
For top-level navigations, we need to compute the client ID when we decide to
intercept the document load, and we need to make sure the document that will
be created later will end up using that same ID.
2015-12-02 20:36:56 -05:00

3192 lines
107 KiB
C++

/* -*- 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 nsIDocument_h___
#define nsIDocument_h___
#include "mozFlushType.h" // for enum
#include "nsAutoPtr.h" // for member
#include "nsCOMArray.h" // for member
#include "nsCRT.h" // for NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
#include "nsCompatibility.h" // for member
#include "nsCOMPtr.h" // for member
#include "nsGkAtoms.h" // for static class members
#include "nsIDocumentObserver.h" // for typedef (nsUpdateType)
#include "nsILoadGroup.h" // for member (in nsCOMPtr)
#include "nsINode.h" // for base class
#include "nsIScriptGlobalObject.h" // for member (in nsCOMPtr)
#include "nsIServiceManager.h"
#include "nsIUUIDGenerator.h"
#include "nsPIDOMWindow.h" // for use in inline functions
#include "nsPropertyTable.h" // for member
#include "nsTHashtable.h" // for member
#include "mozilla/net/ReferrerPolicy.h" // for member
#include "nsWeakReference.h"
#include "mozilla/dom/DocumentBinding.h"
#include "mozilla/UseCounter.h"
#include "mozilla/WeakPtr.h"
#include "Units.h"
#include "nsContentListDeclarations.h"
#include "nsExpirationTracker.h"
#include "nsClassHashtable.h"
#include "prclist.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/CORSMode.h"
#include <bitset> // for member
class gfxUserFontSet;
class imgIRequest;
class nsAString;
class nsBindingManager;
class nsIDocShell;
class nsDocShell;
class nsDOMNavigationTiming;
class nsFrameLoader;
class nsHTMLCSSStyleSheet;
class nsHTMLDocument;
class nsHTMLStyleSheet;
class nsIAtom;
class nsIBFCacheEntry;
class nsIChannel;
class nsIContent;
class nsIContentSink;
class nsIDocShell;
class nsIDocShellTreeItem;
class nsIDocumentEncoder;
class nsIDocumentObserver;
class nsIDOMDocument;
class nsIDOMDocumentType;
class nsIDOMElement;
class nsIDOMNodeFilter;
class nsIDOMNodeList;
class nsIHTMLCollection;
class nsILayoutHistoryState;
class nsILoadContext;
class nsIObjectLoadingContent;
class nsIObserver;
class nsIPresShell;
class nsIPrincipal;
class nsIRequest;
class nsIRunnable;
class nsIStreamListener;
class nsIStructuredCloneContainer;
class nsIURI;
class nsIVariant;
class nsLocation;
class nsViewManager;
class nsPresContext;
class nsRange;
class nsScriptLoader;
class nsSMILAnimationController;
class nsStyleSet;
class nsTextNode;
class nsWindowSizes;
class nsDOMCaretPosition;
class nsViewportInfo;
class nsIGlobalObject;
struct nsCSSSelectorList;
namespace mozilla {
class CSSStyleSheet;
class ErrorResult;
class EventStates;
class PendingAnimationTracker;
class SVGAttrAnimationRuleProcessor;
template<typename> class OwningNonNull;
namespace css {
class Loader;
class ImageLoader;
class Rule;
} // namespace css
namespace gfx {
class VRHMDInfo;
} // namespace gfx
namespace dom {
class AnonymousContent;
class Attr;
class BoxObject;
class CDATASection;
class Comment;
struct CustomElementDefinition;
class DocumentFragment;
class DocumentTimeline;
class DocumentType;
class DOMImplementation;
class DOMStringList;
class Element;
struct ElementRegistrationOptions;
class Event;
class EventTarget;
class FontFaceSet;
class FrameRequestCallback;
struct FullscreenRequest;
class ImportManager;
class HTMLBodyElement;
struct LifecycleCallbackArgs;
class Link;
class MediaQueryList;
class GlobalObject;
class NodeFilter;
class NodeIterator;
enum class OrientationType : uint32_t;
class ProcessingInstruction;
class Promise;
class StyleSheetList;
class SVGDocument;
class Touch;
class TouchList;
class TreeWalker;
class UndoManager;
class XPathEvaluator;
class XPathExpression;
class XPathNSResolver;
class XPathResult;
template<typename> class Sequence;
template<typename, typename> class CallbackObjectHolder;
typedef CallbackObjectHolder<NodeFilter, nsIDOMNodeFilter> NodeFilterHolder;
} // namespace dom
} // namespace mozilla
#define NS_IDOCUMENT_IID \
{ 0x13011a82, 0x46cd, 0x4c33, \
{ 0x9d, 0x4e, 0x31, 0x41, 0xbb, 0x3f, 0x18, 0xe9 } }
// Enum for requesting a particular type of document when creating a doc
enum DocumentFlavor {
DocumentFlavorLegacyGuess, // compat with old code until made HTML5-compliant
DocumentFlavorHTML, // HTMLDocument with HTMLness bit set to true
DocumentFlavorSVG, // SVGDocument
DocumentFlavorPlain, // Just a Document
};
// Document states
// RTL locale: specific to the XUL localedir attribute
#define NS_DOCUMENT_STATE_RTL_LOCALE NS_DEFINE_EVENT_STATE_MACRO(0)
// Window activation status
#define NS_DOCUMENT_STATE_WINDOW_INACTIVE NS_DEFINE_EVENT_STATE_MACRO(1)
// Some function forward-declarations
class nsContentList;
//----------------------------------------------------------------------
// Document interface. This is implemented by all document objects in
// Gecko.
class nsIDocument : public nsINode
{
typedef mozilla::dom::GlobalObject GlobalObject;
public:
typedef mozilla::net::ReferrerPolicy ReferrerPolicyEnum;
typedef mozilla::dom::Element Element;
typedef mozilla::dom::FullscreenRequest FullscreenRequest;
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_IID)
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
#ifdef MOZILLA_INTERNAL_API
nsIDocument();
#endif
/**
* Let the document know that we're starting to load data into it.
* @param aCommand The parser command. Must not be null.
* XXXbz It's odd to have that here.
* @param aChannel The channel the data will come from. The channel must be
* able to report its Content-Type.
* @param aLoadGroup The loadgroup this document should use from now on.
* Note that the document might not be the only thing using
* this loadgroup.
* @param aContainer The container this document is in. This may be null.
* XXXbz maybe we should make it more explicit (eg make the
* container an nsIWebNavigation or nsIDocShell or
* something)?
* @param [out] aDocListener the listener to pump data from the channel into.
* Generally this will be the parser this document
* sets up, or some sort of data-handler for media
* documents.
* @param aReset whether the document should call Reset() on itself. If this
* is false, the document will NOT set its principal to the
* channel's owner, will not clear any event listeners that are
* already set on it, etc.
* @param aSink The content sink to use for the data. If this is null and
* the document needs a content sink, it will create one based
* on whatever it knows about the data it's going to load.
* This MUST be null if the underlying document is an HTML
* document. Even in the XML case, please don't add new calls
* with non-null sink.
*
* Once this has been called, the document will return false for
* MayStartLayout() until SetMayStartLayout(true) is called on it. Making
* sure this happens is the responsibility of the caller of
* StartDocumentLoad().
*/
virtual nsresult StartDocumentLoad(const char* aCommand,
nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener **aDocListener,
bool aReset,
nsIContentSink* aSink = nullptr) = 0;
virtual void StopDocumentLoad() = 0;
/**
* Signal that the document title may have changed
* (see nsDocument::GetTitle).
* @param aBoundTitleElement true if an HTML or SVG <title> element
* has just been bound to the document.
*/
virtual void NotifyPossibleTitleChange(bool aBoundTitleElement) = 0;
/**
* Return the URI for the document. May return null.
*
* The value returned corresponds to the "document's address" in
* HTML5. As such, it may change over the lifetime of the document, for
* instance as a result of the user navigating to a fragment identifier on
* the page, or as a result to a call to pushState() or replaceState().
*
* https://html.spec.whatwg.org/multipage/dom.html#the-document%27s-address
*/
nsIURI* GetDocumentURI() const
{
return mDocumentURI;
}
/**
* Return the original URI of the document. This is the same as the
* document's URI unless that has changed from its original value (for
* example, due to history.pushState() or replaceState() being invoked on the
* document).
*
* This method corresponds to the "creation URL" in HTML5 and, once set,
* doesn't change over the lifetime of the document.
*
* https://html.spec.whatwg.org/multipage/webappapis.html#creation-url
*/
nsIURI* GetOriginalURI() const
{
return mOriginalURI;
}
/**
* Set the URI for the document. This also sets the document's original URI,
* if it's null.
*/
virtual void SetDocumentURI(nsIURI* aURI) = 0;
/**
* Set the URI for the document loaded via XHR, when accessed from
* chrome privileged script.
*/
virtual void SetChromeXHRDocURI(nsIURI* aURI) = 0;
/**
* Set the base URI for the document loaded via XHR, when accessed from
* chrome privileged script.
*/
virtual void SetChromeXHRDocBaseURI(nsIURI* aURI) = 0;
/**
* Set referrer policy and upgrade-insecure-requests flags
*/
virtual void ApplySettingsFromCSP(bool aSpeculative) = 0;
/**
* Return the referrer policy of the document. Return "default" if there's no
* valid meta referrer tag found in the document.
*/
ReferrerPolicyEnum GetReferrerPolicy() const
{
return mReferrerPolicy;
}
/**
* GetReferrerPolicy() for Document.webidl.
*/
uint32_t ReferrerPolicy() const
{
return GetReferrerPolicy();
}
/**
* If true, this flag indicates that all subresource loads for this
* document need to be upgraded from http to https.
* This flag becomes true if the CSP of the document itself, or any
* of the document's ancestors up to the toplevel document makes use
* of the CSP directive 'upgrade-insecure-requests'.
*/
bool GetUpgradeInsecureRequests() const
{
return mUpgradeInsecureRequests;
}
/**
* Same as GetUpgradeInsecureRequests() but *only* for preloads.
*/
bool GetUpgradeInsecurePreloads() const
{
return mUpgradeInsecurePreloads;
}
/**
* Set the principal responsible for this document.
*/
virtual void SetPrincipal(nsIPrincipal *aPrincipal) = 0;
/**
* Return the LoadGroup for the document. May return null.
*/
already_AddRefed<nsILoadGroup> GetDocumentLoadGroup() const
{
nsCOMPtr<nsILoadGroup> group = do_QueryReferent(mDocumentLoadGroup);
return group.forget();
}
/**
* Return the base URI for relative URIs in the document (the document uri
* unless it's overridden by SetBaseURI, HTML <base> tags, etc.). The
* returned URI could be null if there is no document URI. If the document
* is a srcdoc document, return the parent document's base URL.
*/
nsIURI* GetDocBaseURI() const
{
if (mIsSrcdocDocument && mParentDocument) {
return mParentDocument->GetDocBaseURI();
}
return mDocumentBaseURI ? mDocumentBaseURI : mDocumentURI;
}
virtual already_AddRefed<nsIURI> GetBaseURI(bool aTryUseXHRDocBaseURI = false) const override;
virtual nsresult SetBaseURI(nsIURI* aURI) = 0;
/**
* Get/Set the base target of a link in a document.
*/
virtual void GetBaseTarget(nsAString &aBaseTarget) = 0;
void SetBaseTarget(const nsString& aBaseTarget) {
mBaseTarget = aBaseTarget;
}
/**
* Return a standard name for the document's character set.
*/
const nsCString& GetDocumentCharacterSet() const
{
return mCharacterSet;
}
/**
* Set the document's character encoding. |aCharSetID| should be canonical.
* That is, callers are responsible for the charset alias resolution.
*/
virtual void SetDocumentCharacterSet(const nsACString& aCharSetID) = 0;
int32_t GetDocumentCharacterSetSource() const
{
return mCharacterSetSource;
}
// This method MUST be called before SetDocumentCharacterSet if
// you're planning to call both.
void SetDocumentCharacterSetSource(int32_t aCharsetSource)
{
mCharacterSetSource = aCharsetSource;
}
/**
* Add an observer that gets notified whenever the charset changes.
*/
virtual nsresult AddCharSetObserver(nsIObserver* aObserver) = 0;
/**
* Remove a charset observer.
*/
virtual void RemoveCharSetObserver(nsIObserver* aObserver) = 0;
/**
* This gets fired when the element that an id refers to changes.
* This fires at difficult times. It is generally not safe to do anything
* which could modify the DOM in any way. Use
* nsContentUtils::AddScriptRunner.
* @return true to keep the callback in the callback set, false
* to remove it.
*/
typedef bool (* IDTargetObserver)(Element* aOldElement,
Element* aNewelement, void* aData);
/**
* Add an IDTargetObserver for a specific ID. The IDTargetObserver
* will be fired whenever the content associated with the ID changes
* in the future. If aForImage is true, mozSetImageElement can override
* what content is associated with the ID. In that case the IDTargetObserver
* will be notified at those times when the result of LookupImageElement
* changes.
* At most one (aObserver, aData, aForImage) triple can be
* registered for each ID.
* @return the content currently associated with the ID.
*/
virtual Element* AddIDTargetObserver(nsIAtom* aID, IDTargetObserver aObserver,
void* aData, bool aForImage) = 0;
/**
* Remove the (aObserver, aData, aForImage) triple for a specific ID, if
* registered.
*/
virtual void RemoveIDTargetObserver(nsIAtom* aID, IDTargetObserver aObserver,
void* aData, bool aForImage) = 0;
/**
* Get the Content-Type of this document.
* (This will always return NS_OK, but has this signature to be compatible
* with nsIDOMDocument::GetContentType())
*/
NS_IMETHOD GetContentType(nsAString& aContentType) = 0;
/**
* Set the Content-Type of this document.
*/
virtual void SetContentType(const nsAString& aContentType) = 0;
/**
* Return the language of this document.
*/
void GetContentLanguage(nsAString& aContentLanguage) const
{
CopyASCIItoUTF16(mContentLanguage, aContentLanguage);
}
// The states BidiEnabled and MathMLEnabled should persist across multiple views
// (screen, print) of the same document.
/**
* Check if the document contains bidi data.
* If so, we have to apply the Unicode Bidi Algorithm.
*/
bool GetBidiEnabled() const
{
return mBidiEnabled;
}
/**
* Indicate the document contains bidi data.
* Currently, we cannot disable bidi, because once bidi is enabled,
* it affects a frame model irreversibly, and plays even though
* the document no longer contains bidi data.
*/
void SetBidiEnabled()
{
mBidiEnabled = true;
}
/**
* Check if the document contains (or has contained) any MathML elements.
*/
bool GetMathMLEnabled() const
{
return mMathMLEnabled;
}
void SetMathMLEnabled()
{
mMathMLEnabled = true;
}
/**
* Ask this document whether it's the initial document in its window.
*/
bool IsInitialDocument() const
{
return mIsInitialDocumentInWindow;
}
/**
* Tell this document that it's the initial document in its window. See
* comments on mIsInitialDocumentInWindow for when this should be called.
*/
void SetIsInitialDocument(bool aIsInitialDocument)
{
mIsInitialDocumentInWindow = aIsInitialDocument;
}
/**
* Get the bidi options for this document.
* @see nsBidiUtils.h
*/
uint32_t GetBidiOptions() const
{
return mBidiOptions;
}
/**
* Set the bidi options for this document. This just sets the bits;
* callers are expected to take action as needed if they want this
* change to actually change anything immediately.
* @see nsBidiUtils.h
*/
void SetBidiOptions(uint32_t aBidiOptions)
{
mBidiOptions = aBidiOptions;
}
/**
* Get the has mixed active content loaded flag for this document.
*/
bool GetHasMixedActiveContentLoaded()
{
return mHasMixedActiveContentLoaded;
}
/**
* Set the has mixed active content loaded flag for this document.
*/
void SetHasMixedActiveContentLoaded(bool aHasMixedActiveContentLoaded)
{
mHasMixedActiveContentLoaded = aHasMixedActiveContentLoaded;
}
/**
* Get mixed active content blocked flag for this document.
*/
bool GetHasMixedActiveContentBlocked()
{
return mHasMixedActiveContentBlocked;
}
/**
* Set the mixed active content blocked flag for this document.
*/
void SetHasMixedActiveContentBlocked(bool aHasMixedActiveContentBlocked)
{
mHasMixedActiveContentBlocked = aHasMixedActiveContentBlocked;
}
/**
* Get the has mixed display content loaded flag for this document.
*/
bool GetHasMixedDisplayContentLoaded()
{
return mHasMixedDisplayContentLoaded;
}
/**
* Set the has mixed display content loaded flag for this document.
*/
void SetHasMixedDisplayContentLoaded(bool aHasMixedDisplayContentLoaded)
{
mHasMixedDisplayContentLoaded = aHasMixedDisplayContentLoaded;
}
/**
* Get mixed display content blocked flag for this document.
*/
bool GetHasMixedDisplayContentBlocked()
{
return mHasMixedDisplayContentBlocked;
}
/**
* Set the mixed display content blocked flag for this document.
*/
void SetHasMixedDisplayContentBlocked(bool aHasMixedDisplayContentBlocked)
{
mHasMixedDisplayContentBlocked = aHasMixedDisplayContentBlocked;
}
/**
* Get tracking content blocked flag for this document.
*/
bool GetHasTrackingContentBlocked()
{
return mHasTrackingContentBlocked;
}
/**
* Set the tracking content blocked flag for this document.
*/
void SetHasTrackingContentBlocked(bool aHasTrackingContentBlocked)
{
mHasTrackingContentBlocked = aHasTrackingContentBlocked;
}
/**
* Get tracking content loaded flag for this document.
*/
bool GetHasTrackingContentLoaded()
{
return mHasTrackingContentLoaded;
}
/**
* Set the tracking content loaded flag for this document.
*/
void SetHasTrackingContentLoaded(bool aHasTrackingContentLoaded)
{
mHasTrackingContentLoaded = aHasTrackingContentLoaded;
}
/**
* Get the sandbox flags for this document.
* @see nsSandboxFlags.h for the possible flags
*/
uint32_t GetSandboxFlags() const
{
return mSandboxFlags;
}
/**
* Set the sandbox flags for this document.
* @see nsSandboxFlags.h for the possible flags
*/
void SetSandboxFlags(uint32_t sandboxFlags)
{
mSandboxFlags = sandboxFlags;
}
/**
* Access HTTP header data (this may also get set from other
* sources, like HTML META tags).
*/
virtual void GetHeaderData(nsIAtom* aHeaderField, nsAString& aData) const = 0;
virtual void SetHeaderData(nsIAtom* aheaderField, const nsAString& aData) = 0;
/**
* Create a new presentation shell that will use aContext for its
* presentation context (presentation contexts <b>must not</b> be
* shared among multiple presentation shells). The caller of this
* method is responsible for calling BeginObservingDocument() on the
* presshell if the presshell should observe document mutations.
*/
virtual already_AddRefed<nsIPresShell> CreateShell(nsPresContext* aContext,
nsViewManager* aViewManager,
nsStyleSet* aStyleSet) = 0;
virtual void DeleteShell() = 0;
nsIPresShell* GetShell() const
{
return GetBFCacheEntry() ? nullptr : mPresShell;
}
// Instead using this method, what you probably want is
// RemoveFromBFCacheSync() as we do in MessagePort and BroadcastChannel.
void DisallowBFCaching()
{
NS_ASSERTION(!mBFCacheEntry, "We're already in the bfcache!");
mBFCacheDisallowed = true;
}
bool IsBFCachingAllowed() const
{
return !mBFCacheDisallowed;
}
void SetBFCacheEntry(nsIBFCacheEntry* aEntry)
{
NS_ASSERTION(IsBFCachingAllowed() || !aEntry,
"You should have checked!");
mBFCacheEntry = aEntry;
}
nsIBFCacheEntry* GetBFCacheEntry() const
{
return mBFCacheEntry;
}
/**
* Return the parent document of this document. Will return null
* unless this document is within a compound document and has a
* parent. Note that this parent chain may cross chrome boundaries.
*/
nsIDocument *GetParentDocument() const
{
return mParentDocument;
}
/**
* Set the parent document of this document.
*/
void SetParentDocument(nsIDocument* aParent)
{
mParentDocument = aParent;
}
/**
* Are plugins allowed in this document ?
*/
virtual nsresult GetAllowPlugins (bool* aAllowPlugins) = 0;
/**
* Set the sub document for aContent to aSubDoc.
*/
virtual nsresult SetSubDocumentFor(Element* aContent,
nsIDocument* aSubDoc) = 0;
/**
* Get the sub document for aContent
*/
virtual nsIDocument *GetSubDocumentFor(nsIContent *aContent) const = 0;
/**
* Find the content node for which aDocument is a sub document.
*/
virtual Element* FindContentForSubDocument(nsIDocument* aDocument) const = 0;
/**
* Return the doctype for this document.
*/
mozilla::dom::DocumentType* GetDoctype() const;
/**
* Return the root element for this document.
*/
Element* GetRootElement() const;
/**
* Retrieve information about the viewport as a data structure.
* This will return information in the viewport META data section
* of the document. This can be used in lieu of ProcessViewportInfo(),
* which places the viewport information in the document header instead
* of returning it directly.
*
* @param aDisplaySize size of the on-screen display area for this
* document, in device pixels.
*
* NOTE: If the site is optimized for mobile (via the doctype), this
* will return viewport information that specifies default information.
*/
virtual nsViewportInfo GetViewportInfo(const mozilla::ScreenIntSize& aDisplaySize) = 0;
/**
* True iff this doc will ignore manual character encoding overrides.
*/
virtual bool WillIgnoreCharsetOverride() {
return true;
}
/**
* Return whether the document was created by a srcdoc iframe.
*/
bool IsSrcdocDocument() const {
return mIsSrcdocDocument;
}
/**
* Sets whether the document was created by a srcdoc iframe.
*/
void SetIsSrcdocDocument(bool aIsSrcdocDocument) {
mIsSrcdocDocument = aIsSrcdocDocument;
}
/*
* Gets the srcdoc string from within the channel (assuming both exist).
* Returns a void string if this isn't a srcdoc document or if
* the channel has not been set.
*/
nsresult GetSrcdocData(nsAString& aSrcdocData);
bool DidDocumentOpen() {
return mDidDocumentOpen;
}
already_AddRefed<mozilla::dom::AnonymousContent>
InsertAnonymousContent(mozilla::dom::Element& aElement,
mozilla::ErrorResult& aError);
void RemoveAnonymousContent(mozilla::dom::AnonymousContent& aContent,
mozilla::ErrorResult& aError);
nsTArray<RefPtr<mozilla::dom::AnonymousContent>>& GetAnonymousContents() {
return mAnonymousContents;
}
static nsresult GenerateDocumentId(nsAString& aId);
nsresult GetOrCreateId(nsAString& aId);
void SetId(const nsAString& aId);
protected:
virtual Element *GetRootElementInternal() const = 0;
private:
class SelectorCacheKey
{
public:
explicit SelectorCacheKey(const nsAString& aString) : mKey(aString)
{
MOZ_COUNT_CTOR(SelectorCacheKey);
}
nsString mKey;
nsExpirationState mState;
nsExpirationState* GetExpirationState() { return &mState; }
~SelectorCacheKey()
{
MOZ_COUNT_DTOR(SelectorCacheKey);
}
};
class SelectorCacheKeyDeleter;
public:
class SelectorCache final
: public nsExpirationTracker<SelectorCacheKey, 4>
{
public:
SelectorCache();
// CacheList takes ownership of aSelectorList.
void CacheList(const nsAString& aSelector, nsCSSSelectorList* aSelectorList);
virtual void NotifyExpired(SelectorCacheKey* aSelector) override;
// We do not call MarkUsed because it would just slow down lookups and
// because we're OK expiring things after a few seconds even if they're
// being used. Returns whether we actually had an entry for aSelector.
// If we have an entry and *aList is null, that indicates that aSelector
// has already been parsed and is not a syntactically valid selector.
bool GetList(const nsAString& aSelector, nsCSSSelectorList** aList)
{
return mTable.Get(aSelector, aList);
}
~SelectorCache()
{
AgeAllGenerations();
}
private:
nsClassHashtable<nsStringHashKey, nsCSSSelectorList> mTable;
};
SelectorCache& GetSelectorCache()
{
return mSelectorCache;
}
// Get the root <html> element, or return null if there isn't one (e.g.
// if the root isn't <html>)
Element* GetHtmlElement() const;
// Returns the first child of GetHtmlContent which has the given tag,
// or nullptr if that doesn't exist.
Element* GetHtmlChildElement(nsIAtom* aTag);
// Get the canonical <body> element, or return null if there isn't one (e.g.
// if the root isn't <html> or if the <body> isn't there)
mozilla::dom::HTMLBodyElement* GetBodyElement();
// Get the canonical <head> element, or return null if there isn't one (e.g.
// if the root isn't <html> or if the <head> isn't there)
Element* GetHeadElement() {
return GetHtmlChildElement(nsGkAtoms::head);
}
/**
* Accessors to the collection of stylesheets owned by this document.
* Style sheets are ordered, most significant last.
*/
/**
* These exists to allow us to on-demand load user-agent style sheets that
* would otherwise be loaded by nsDocumentViewer::CreateStyleSet. This allows
* us to keep the memory used by a document's rule cascade data (the stuff in
* its nsStyleSet's nsCSSRuleProcessors) - which can be considerable - lower
* than it would be if we loaded all built-in user-agent style sheets up
* front.
*
* By "built-in" user-agent style sheets we mean the user-agent style sheets
* that gecko itself supplies (such as html.css and svg.css) as opposed to
* user-agent level style sheets inserted by add-ons or the like.
*
* This function prepends the given style sheet to the document's style set
* in order to make sure that it does not override user-agent style sheets
* supplied by add-ons or by the app (Firefox OS or Firefox Mobile, for
* example), since their sheets should override built-in sheets.
*
* TODO We can get rid of the whole concept of delayed loading if we fix
* bug 77999.
*/
virtual void EnsureOnDemandBuiltInUASheet(mozilla::CSSStyleSheet* aSheet) = 0;
/**
* Get the number of (document) stylesheets
*
* @return the number of stylesheets
* @throws no exceptions
*/
virtual int32_t GetNumberOfStyleSheets() const = 0;
/**
* Get a particular stylesheet
* @param aIndex the index the stylesheet lives at. This is zero-based
* @return the stylesheet at aIndex. Null if aIndex is out of range.
* @throws no exceptions
*/
virtual mozilla::CSSStyleSheet* GetStyleSheetAt(int32_t aIndex) const = 0;
/**
* Insert a sheet at a particular spot in the stylesheet list (zero-based)
* @param aSheet the sheet to insert
* @param aIndex the index to insert at. This index will be
* adjusted for the "special" sheets.
* @throws no exceptions
*/
virtual void InsertStyleSheetAt(mozilla::CSSStyleSheet* aSheet,
int32_t aIndex) = 0;
/**
* Get the index of a particular stylesheet. This will _always_
* consider the "special" sheets as part of the sheet list.
* @param aSheet the sheet to get the index of
* @return aIndex the index of the sheet in the full list
*/
virtual int32_t GetIndexOfStyleSheet(mozilla::CSSStyleSheet* aSheet) const = 0;
/**
* Replace the stylesheets in aOldSheets with the stylesheets in
* aNewSheets. The two lists must have equal length, and the sheet
* at positon J in the first list will be replaced by the sheet at
* position J in the second list. Some sheets in the second list
* may be null; if so the corresponding sheets in the first list
* will simply be removed.
*/
virtual void UpdateStyleSheets(
nsTArray<RefPtr<mozilla::CSSStyleSheet>>& aOldSheets,
nsTArray<RefPtr<mozilla::CSSStyleSheet>>& aNewSheets) = 0;
/**
* Add a stylesheet to the document
*/
virtual void AddStyleSheet(mozilla::CSSStyleSheet* aSheet) = 0;
/**
* Remove a stylesheet from the document
*/
virtual void RemoveStyleSheet(mozilla::CSSStyleSheet* aSheet) = 0;
/**
* Notify the document that the applicable state of the sheet changed
* and that observers should be notified and style sets updated
*/
virtual void SetStyleSheetApplicableState(mozilla::CSSStyleSheet* aSheet,
bool aApplicable) = 0;
enum additionalSheetType {
eAgentSheet,
eUserSheet,
eAuthorSheet,
AdditionalSheetTypeCount
};
virtual nsresult LoadAdditionalStyleSheet(additionalSheetType aType,
nsIURI* aSheetURI) = 0;
virtual nsresult AddAdditionalStyleSheet(additionalSheetType aType,
mozilla::CSSStyleSheet* aSheet) = 0;
virtual void RemoveAdditionalStyleSheet(additionalSheetType aType,
nsIURI* sheetURI) = 0;
virtual mozilla::CSSStyleSheet* FirstAdditionalAuthorSheet() = 0;
/**
* Get this document's CSSLoader. This is guaranteed to not return null.
*/
mozilla::css::Loader* CSSLoader() const {
return mCSSLoader;
}
/**
* Get this document's StyleImageLoader. This is guaranteed to not return null.
*/
mozilla::css::ImageLoader* StyleImageLoader() const {
return mStyleImageLoader;
}
/**
* Get the channel that was passed to StartDocumentLoad or Reset for this
* document. Note that this may be null in some cases (eg if
* StartDocumentLoad or Reset were never called)
*/
virtual nsIChannel* GetChannel() const = 0;
/**
* Get this document's attribute stylesheet. May return null if
* there isn't one.
*/
nsHTMLStyleSheet* GetAttributeStyleSheet() const {
return mAttrStyleSheet;
}
/**
* Get this document's inline style sheet. May return null if there
* isn't one
*/
nsHTMLCSSStyleSheet* GetInlineStyleSheet() const {
return mStyleAttrStyleSheet;
}
/**
* Get this document's SVG Animation rule processor. May return null
* if there isn't one.
*/
mozilla::SVGAttrAnimationRuleProcessor*
GetSVGAttrAnimationRuleProcessor() const
{
return mSVGAttrAnimationRuleProcessor;
}
virtual void SetScriptGlobalObject(nsIScriptGlobalObject* aGlobalObject) = 0;
/**
* Get/set the object from which the context for the event/script handling can
* be got. Normally GetScriptHandlingObject() returns the same object as
* GetScriptGlobalObject(), but if the document is loaded as data,
* non-null may be returned, even if GetScriptGlobalObject() returns null.
* aHasHadScriptHandlingObject is set true if document has had the object
* for event/script handling. Do not process any events/script if the method
* returns null, but aHasHadScriptHandlingObject is true.
*/
nsIScriptGlobalObject*
GetScriptHandlingObject(bool& aHasHadScriptHandlingObject) const
{
aHasHadScriptHandlingObject = mHasHadScriptHandlingObject;
return mScriptGlobalObject ? mScriptGlobalObject.get() :
GetScriptHandlingObjectInternal();
}
virtual void SetScriptHandlingObject(nsIScriptGlobalObject* aScriptObject) = 0;
/**
* Get the object that is used as the scope for all of the content
* wrappers whose owner document is this document. Unlike the script global
* object, this will only return null when the global object for this
* document is truly gone. Use this object when you're trying to find a
* content wrapper in XPConnect.
*/
virtual nsIGlobalObject* GetScopeObject() const = 0;
virtual void SetScopeObject(nsIGlobalObject* aGlobal) = 0;
/**
* Return the window containing the document (the outer window).
*/
nsPIDOMWindow *GetWindow() const
{
return mWindow ? mWindow->GetOuterWindow() : GetWindowInternal();
}
bool IsInBackgroundWindow() const
{
nsPIDOMWindow* outer = mWindow ? mWindow->GetOuterWindow() : nullptr;
return outer && outer->IsBackground();
}
/**
* Return the inner window used as the script compilation scope for
* this document. If you're not absolutely sure you need this, use
* GetWindow().
*/
nsPIDOMWindow* GetInnerWindow() const
{
return mRemovedFromDocShell ? nullptr : mWindow;
}
/**
* Return the outer window ID.
*/
uint64_t OuterWindowID() const
{
nsPIDOMWindow *window = GetWindow();
return window ? window->WindowID() : 0;
}
/**
* Return the inner window ID.
*/
uint64_t InnerWindowID() const
{
nsPIDOMWindow *window = GetInnerWindow();
return window ? window->WindowID() : 0;
}
/**
* Get the script loader for this document
*/
virtual nsScriptLoader* ScriptLoader() = 0;
/**
* Add/Remove an element to the document's id and name hashes
*/
virtual void AddToIdTable(Element* aElement, nsIAtom* aId) = 0;
virtual void RemoveFromIdTable(Element* aElement, nsIAtom* aId) = 0;
virtual void AddToNameTable(Element* aElement, nsIAtom* aName) = 0;
virtual void RemoveFromNameTable(Element* aElement, nsIAtom* aName) = 0;
/**
* Returns the element which either requested DOM full-screen mode, or
* contains the element which requested DOM full-screen mode if the
* requestee is in a subdocument. Note this element must be *in*
* this document.
*/
virtual Element* GetFullScreenElement() = 0;
/**
* Returns all elements in the fullscreen stack in the insertion order.
*/
virtual nsTArray<Element*> GetFullscreenStack() const = 0;
/**
* Asynchronously requests that the document make aElement the fullscreen
* element, and move into fullscreen mode. The current fullscreen element
* (if any) is pushed onto the fullscreen element stack, and it can be
* returned to fullscreen status by calling RestorePreviousFullScreenState().
*
* Note that requesting fullscreen in a document also makes the element which
* contains this document in this document's parent document fullscreen. i.e.
* the <iframe> or <browser> that contains this document is also mode
* fullscreen. This happens recursively in all ancestor documents.
*/
virtual void AsyncRequestFullScreen(
mozilla::UniquePtr<FullscreenRequest>&& aRequest) = 0;
/**
* Called when a frame in a child process has entered fullscreen or when a
* fullscreen frame in a child process changes to another origin.
* aFrameElement is the frame element which contains the child-process
* fullscreen document.
*/
virtual nsresult
RemoteFrameFullscreenChanged(nsIDOMElement* aFrameElement) = 0;
/**
* Called when a frame in a remote child document has rolled back fullscreen
* so that all its fullscreen element stacks are empty; we must continue the
* rollback in this parent process' doc tree branch which is fullscreen.
* Note that only one branch of the document tree can have its documents in
* fullscreen state at one time. We're in inconsistent state if a
* fullscreen document has a parent and that parent isn't fullscreen. We
* preserve this property across process boundaries.
*/
virtual nsresult RemoteFrameFullscreenReverted() = 0;
/**
* Restores the previous full-screen element to full-screen status. If there
* is no former full-screen element, this exits full-screen, moving the
* top-level browser window out of full-screen mode.
*/
virtual void RestorePreviousFullScreenState() = 0;
/**
* Returns true if this document is in full-screen mode.
*/
virtual bool IsFullScreenDoc() = 0;
/**
* Returns true if this document is a fullscreen leaf document, i.e. it
* is in fullscreen mode and has no fullscreen children.
*/
virtual bool IsFullscreenLeaf() = 0;
/**
* Returns the document which is at the root of this document's branch
* in the in-process document tree. Returns nullptr if the document isn't
* fullscreen.
*/
virtual nsIDocument* GetFullscreenRoot() = 0;
/**
* Sets the fullscreen root to aRoot. This stores a weak reference to aRoot
* in this document.
*/
virtual void SetFullscreenRoot(nsIDocument* aRoot) = 0;
/**
* Synchronously cleans up the fullscreen state on the given document.
*
* Calling this without performing fullscreen transition could lead
* to undesired effect (the transition happens after document state
* flips), hence it should only be called either by nsGlobalWindow
* when we have performed the transition, or when it is necessary to
* clean up the state immediately. Otherwise, AsyncExitFullscreen()
* should be called instead.
*
* aDocument must not be null.
*/
static void ExitFullscreenInDocTree(nsIDocument* aDocument);
/**
* Ask the document to exit fullscreen state asynchronously.
*
* Different from ExitFullscreenInDocTree(), this allows the window
* to perform fullscreen transition first if any.
*
* If aDocument is null, it will exit fullscreen from all documents
* in all windows.
*/
static void AsyncExitFullscreen(nsIDocument* aDocument);
/**
* Handles any pending fullscreen in aDocument or its subdocuments.
*
* Returns whether there is any fullscreen request handled.
*/
static bool HandlePendingFullscreenRequests(nsIDocument* aDocument);
virtual void RequestPointerLock(Element* aElement) = 0;
static void UnlockPointer(nsIDocument* aDoc = nullptr);
// ScreenOrientation related APIs
virtual void SetCurrentOrientation(mozilla::dom::OrientationType aType,
uint16_t aAngle) = 0;
virtual uint16_t CurrentOrientationAngle() const = 0;
virtual mozilla::dom::OrientationType CurrentOrientationType() const = 0;
virtual void SetOrientationPendingPromise(mozilla::dom::Promise* aPromise) = 0;
virtual mozilla::dom::Promise* GetOrientationPendingPromise() const = 0;
//----------------------------------------------------------------------
// Document notification API's
/**
* Add a new observer of document change notifications. Whenever
* content is changed, appended, inserted or removed the observers are
* informed. An observer that is already observing the document must
* not be added without being removed first.
*/
virtual void AddObserver(nsIDocumentObserver* aObserver) = 0;
/**
* Remove an observer of document change notifications. This will
* return false if the observer cannot be found.
*/
virtual bool RemoveObserver(nsIDocumentObserver* aObserver) = 0;
// Observation hooks used to propagate notifications to document observers.
// BeginUpdate must be called before any batch of modifications of the
// content model or of style data, EndUpdate must be called afterward.
// To make this easy and painless, use the mozAutoDocUpdate helper class.
virtual void BeginUpdate(nsUpdateType aUpdateType) = 0;
virtual void EndUpdate(nsUpdateType aUpdateType) = 0;
virtual void BeginLoad() = 0;
virtual void EndLoad() = 0;
enum ReadyState { READYSTATE_UNINITIALIZED = 0, READYSTATE_LOADING = 1, READYSTATE_INTERACTIVE = 3, READYSTATE_COMPLETE = 4};
virtual void SetReadyStateInternal(ReadyState rs) = 0;
ReadyState GetReadyStateEnum()
{
return mReadyState;
}
// notify that a content node changed state. This must happen under
// a scriptblocker but NOT within a begin/end update.
virtual void ContentStateChanged(nsIContent* aContent,
mozilla::EventStates aStateMask) = 0;
// Notify that a document state has changed.
// This should only be called by callers whose state is also reflected in the
// implementation of nsDocument::GetDocumentState.
virtual void DocumentStatesChanged(mozilla::EventStates aStateMask) = 0;
// Observation hooks for style data to propagate notifications
// to document observers
virtual void StyleRuleChanged(mozilla::CSSStyleSheet* aStyleSheet,
mozilla::css::Rule* aStyleRule) = 0;
virtual void StyleRuleAdded(mozilla::CSSStyleSheet* aStyleSheet,
mozilla::css::Rule* aStyleRule) = 0;
virtual void StyleRuleRemoved(mozilla::CSSStyleSheet* aStyleSheet,
mozilla::css::Rule* aStyleRule) = 0;
/**
* Flush notifications for this document and its parent documents
* (since those may affect the layout of this one).
*/
virtual void FlushPendingNotifications(mozFlushType aType) = 0;
/**
* Calls FlushPendingNotifications on any external resources this document
* has. If this document has no external resources or is an external resource
* itself this does nothing. This should only be called with
* aType >= Flush_Style.
*/
virtual void FlushExternalResources(mozFlushType aType) = 0;
nsBindingManager* BindingManager() const
{
return mNodeInfoManager->GetBindingManager();
}
/**
* Only to be used inside Gecko, you can't really do anything with the
* pointer outside Gecko anyway.
*/
nsNodeInfoManager* NodeInfoManager() const
{
return mNodeInfoManager;
}
/**
* Reset the document using the given channel and loadgroup. This works
* like ResetToURI, but also sets the document's channel to aChannel.
* The principal of the document will be set from the channel.
*/
virtual void Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup) = 0;
/**
* Reset this document to aURI, aLoadGroup, and aPrincipal. aURI must not be
* null. If aPrincipal is null, a codebase principal based on aURI will be
* used.
*/
virtual void ResetToURI(nsIURI *aURI, nsILoadGroup* aLoadGroup,
nsIPrincipal* aPrincipal) = 0;
/**
* Set the container (docshell) for this document. Virtual so that
* docshell can call it.
*/
virtual void SetContainer(nsDocShell* aContainer);
/**
* Get the container (docshell) for this document.
*/
virtual nsISupports* GetContainer() const;
/**
* Get the container's load context for this document.
*/
nsILoadContext* GetLoadContext() const;
/**
* Get docshell the for this document.
*/
nsIDocShell* GetDocShell() const;
/**
* Set and get XML declaration. If aVersion is null there is no declaration.
* aStandalone takes values -1, 0 and 1 indicating respectively that there
* was no standalone parameter in the declaration, that it was given as no,
* or that it was given as yes.
*/
virtual void SetXMLDeclaration(const char16_t *aVersion,
const char16_t *aEncoding,
const int32_t aStandalone) = 0;
virtual void GetXMLDeclaration(nsAString& aVersion,
nsAString& aEncoding,
nsAString& Standalone) = 0;
/**
* Returns true if this is what HTML 5 calls an "HTML document" (for example
* regular HTML document with Content-Type "text/html", image documents and
* media documents). Returns false for XHTML and any other documents parsed
* by the XML parser.
*/
bool IsHTMLDocument() const
{
return mType == eHTML;
}
bool IsHTMLOrXHTML() const
{
return mType == eHTML || mType == eXHTML;
}
bool IsXMLDocument() const
{
return !IsHTMLDocument();
}
bool IsSVGDocument() const
{
return mType == eSVG;
}
bool IsXULDocument() const
{
return mType == eXUL;
}
bool IsUnstyledDocument()
{
return IsLoadedAsData() || IsLoadedAsInteractiveData();
}
bool LoadsFullXULStyleSheetUpFront()
{
return IsXULDocument() || AllowXULXBL();
}
virtual bool IsScriptEnabled() = 0;
/**
* Create an element with the specified name, prefix and namespace ID.
* Returns null if element name parsing failed.
*/
virtual already_AddRefed<Element> CreateElem(const nsAString& aName,
nsIAtom* aPrefix,
int32_t aNamespaceID) = 0;
/**
* Get the security info (i.e. SSL state etc) that the document got
* from the channel/document that created the content of the
* document.
*
* @see nsIChannel
*/
nsISupports *GetSecurityInfo()
{
return mSecurityInfo;
}
/**
* Get the channel that failed to load and resulted in an error page, if it
* exists. This is only relevant to error pages.
*/
virtual nsIChannel* GetFailedChannel() const = 0;
/**
* Set the channel that failed to load and resulted in an error page.
* This is only relevant to error pages.
*/
virtual void SetFailedChannel(nsIChannel* aChannel) = 0;
/**
* Returns the default namespace ID used for elements created in this
* document.
*/
int32_t GetDefaultNamespaceID() const
{
return mDefaultElementType;
}
void DeleteAllProperties();
void DeleteAllPropertiesFor(nsINode* aNode);
nsPropertyTable* PropertyTable(uint16_t aCategory) {
if (aCategory == 0)
return &mPropertyTable;
return GetExtraPropertyTable(aCategory);
}
uint32_t GetPropertyTableCount()
{ return mExtraPropertyTables.Length() + 1; }
/**
* Sets the ID used to identify this part of the multipart document
*/
void SetPartID(uint32_t aID) {
mPartID = aID;
}
/**
* Return the ID used to identify this part of the multipart document
*/
uint32_t GetPartID() const {
return mPartID;
}
/**
* Sanitize the document by resetting all input elements and forms that have
* autocomplete=off to their default values.
*/
virtual void Sanitize() = 0;
/**
* Enumerate all subdocuments.
* The enumerator callback should return true to continue enumerating, or
* false to stop. This will never get passed a null aDocument.
*/
typedef bool (*nsSubDocEnumFunc)(nsIDocument *aDocument, void *aData);
virtual void EnumerateSubDocuments(nsSubDocEnumFunc aCallback,
void *aData) = 0;
/**
* Check whether it is safe to cache the presentation of this document
* and all of its subdocuments. This method checks the following conditions
* recursively:
* - Some document types, such as plugin documents, cannot be safely cached.
* - If there are any pending requests, we don't allow the presentation
* to be cached. Ideally these requests would be suspended and resumed,
* but that is difficult in some cases, such as XMLHttpRequest.
* - If there are any beforeunload or unload listeners, we must fire them
* for correctness, but this likely puts the document into a state where
* it would not function correctly if restored.
*
* |aNewRequest| should be the request for a new document which will
* replace this document in the docshell. The new document's request
* will be ignored when checking for active requests. If there is no
* request associated with the new document, this parameter may be null.
*/
virtual bool CanSavePresentation(nsIRequest *aNewRequest) = 0;
/**
* Notify the document that its associated ContentViewer is being destroyed.
* This releases circular references so that the document can go away.
* Destroy() is only called on documents that have a content viewer.
*/
virtual void Destroy() = 0;
/**
* Notify the document that its associated ContentViewer is no longer
* the current viewer for the docshell. The document might still
* be rendered in "zombie state" until the next document is ready.
* The document should save form control state.
*/
virtual void RemovedFromDocShell() = 0;
/**
* Get the layout history state that should be used to save and restore state
* for nodes in this document. This may return null; if that happens state
* saving and restoration is not possible.
*/
virtual already_AddRefed<nsILayoutHistoryState> GetLayoutHistoryState() const = 0;
/**
* Methods that can be used to prevent onload firing while an event that
* should block onload is posted. onload is guaranteed to not fire until
* either all calls to BlockOnload() have been matched by calls to
* UnblockOnload() or the load has been stopped altogether (by the user
* pressing the Stop button, say).
*/
virtual void BlockOnload() = 0;
/**
* @param aFireSync whether to fire onload synchronously. If false,
* onload will fire asynchronously after all onload blocks have been
* removed. It will NOT fire from inside UnblockOnload. If true,
* onload may fire from inside UnblockOnload.
*/
virtual void UnblockOnload(bool aFireSync) = 0;
void BlockDOMContentLoaded()
{
++mBlockDOMContentLoaded;
}
virtual void UnblockDOMContentLoaded() = 0;
/**
* Notification that the page has been shown, for documents which are loaded
* into a DOM window. This corresponds to the completion of document load,
* or to the page's presentation being restored into an existing DOM window.
* This notification fires applicable DOM events to the content window. See
* PageTransitionEvent.webidl for a description of the |aPersisted|
* parameter. If aDispatchStartTarget is null, the pageshow event is
* dispatched on the ScriptGlobalObject for this document, otherwise it's
* dispatched on aDispatchStartTarget.
* Note: if aDispatchStartTarget isn't null, the showing state of the
* document won't be altered.
*/
virtual void OnPageShow(bool aPersisted,
mozilla::dom::EventTarget* aDispatchStartTarget) = 0;
/**
* Notification that the page has been hidden, for documents which are loaded
* into a DOM window. This corresponds to the unloading of the document, or
* to the document's presentation being saved but removed from an existing
* DOM window. This notification fires applicable DOM events to the content
* window. See PageTransitionEvent.webidl for a description of the
* |aPersisted| parameter. If aDispatchStartTarget is null, the pagehide
* event is dispatched on the ScriptGlobalObject for this document,
* otherwise it's dispatched on aDispatchStartTarget.
* Note: if aDispatchStartTarget isn't null, the showing state of the
* document won't be altered.
*/
virtual void OnPageHide(bool aPersisted,
mozilla::dom::EventTarget* aDispatchStartTarget) = 0;
/*
* We record the set of links in the document that are relevant to
* style.
*/
/**
* Notification that an element is a link that is relevant to style.
*/
virtual void AddStyleRelevantLink(mozilla::dom::Link* aLink) = 0;
/**
* Notification that an element is a link and its URI might have been
* changed or the element removed. If the element is still a link relevant
* to style, then someone must ensure that AddStyleRelevantLink is
* (eventually) called on it again.
*/
virtual void ForgetLink(mozilla::dom::Link* aLink) = 0;
/**
* Resets and removes a box object from the document's box object cache
*
* @param aElement canonical nsIContent pointer of the box object's element
*/
virtual void ClearBoxObjectFor(nsIContent *aContent) = 0;
/**
* Get the box object for an element. This is not exposed through a
* scriptable interface except for XUL documents.
*/
virtual already_AddRefed<mozilla::dom::BoxObject>
GetBoxObjectFor(mozilla::dom::Element* aElement,
mozilla::ErrorResult& aRv) = 0;
/**
* Support for window.matchMedia()
*/
already_AddRefed<mozilla::dom::MediaQueryList>
MatchMedia(const nsAString& aMediaQueryList);
const PRCList* MediaQueryLists() const {
return &mDOMMediaQueryLists;
}
/**
* Get the compatibility mode for this document
*/
nsCompatibility GetCompatibilityMode() const {
return mCompatMode;
}
/**
* Check whether we've ever fired a DOMTitleChanged event for this
* document.
*/
bool HaveFiredDOMTitleChange() const {
return mHaveFiredTitleChange;
}
/**
* See GetAnonymousElementByAttribute on nsIDOMDocumentXBL.
*/
virtual Element*
GetAnonymousElementByAttribute(nsIContent* aElement,
nsIAtom* aAttrName,
const nsAString& aAttrValue) const = 0;
/**
* Helper for nsIDOMDocument::elementFromPoint implementation that allows
* ignoring the scroll frame and/or avoiding layout flushes.
*
* @see nsIDOMWindowUtils::elementFromPoint
*/
virtual Element* ElementFromPointHelper(float aX, float aY,
bool aIgnoreRootScrollFrame,
bool aFlushLayout) = 0;
virtual nsresult NodesFromRectHelper(float aX, float aY,
float aTopSize, float aRightSize,
float aBottomSize, float aLeftSize,
bool aIgnoreRootScrollFrame,
bool aFlushLayout,
nsIDOMNodeList** aReturn) = 0;
/**
* See FlushSkinBindings on nsBindingManager
*/
virtual void FlushSkinBindings() = 0;
/**
* To batch DOMSubtreeModified, document needs to be informed when
* a mutation event might be dispatched, even if the event isn't actually
* created because there are no listeners for it.
*
* @param aTarget is the target for the mutation event.
*/
void MayDispatchMutationEvent(nsINode* aTarget)
{
if (mSubtreeModifiedDepth > 0) {
mSubtreeModifiedTargets.AppendObject(aTarget);
}
}
/**
* Marks as not-going-to-be-collected for the given generation of
* cycle collection.
*/
void MarkUncollectableForCCGeneration(uint32_t aGeneration)
{
mMarkedCCGeneration = aGeneration;
}
/**
* Gets the cycle collector generation this document is marked for.
*/
uint32_t GetMarkedCCGeneration()
{
return mMarkedCCGeneration;
}
bool IsLoadedAsData()
{
return mLoadedAsData;
}
bool IsLoadedAsInteractiveData()
{
return mLoadedAsInteractiveData;
}
bool MayStartLayout()
{
return mMayStartLayout;
}
void SetMayStartLayout(bool aMayStartLayout)
{
mMayStartLayout = aMayStartLayout;
}
already_AddRefed<nsIDocumentEncoder> GetCachedEncoder();
void SetCachedEncoder(already_AddRefed<nsIDocumentEncoder> aEncoder);
// In case of failure, the document really can't initialize the frame loader.
virtual nsresult InitializeFrameLoader(nsFrameLoader* aLoader) = 0;
// In case of failure, the caller must handle the error, for example by
// finalizing frame loader asynchronously.
virtual nsresult FinalizeFrameLoader(nsFrameLoader* aLoader, nsIRunnable* aFinalizer) = 0;
// Removes the frame loader of aShell from the initialization list.
virtual void TryCancelFrameLoaderInitialization(nsIDocShell* aShell) = 0;
/**
* Check whether this document is a root document that is not an
* external resource.
*/
bool IsRootDisplayDocument() const
{
return !mParentDocument && !mDisplayDocument;
}
bool IsBeingUsedAsImage() const {
return mIsBeingUsedAsImage;
}
void SetIsBeingUsedAsImage() {
mIsBeingUsedAsImage = true;
}
bool IsResourceDoc() const {
return IsBeingUsedAsImage() || // Are we a helper-doc for an SVG image?
mHasDisplayDocument; // Are we an external resource doc?
}
/**
* Get the document for which this document is an external resource. This
* will be null if this document is not an external resource. Otherwise,
* GetDisplayDocument() will return a non-null document, and
* GetDisplayDocument()->GetDisplayDocument() is guaranteed to be null.
*/
nsIDocument* GetDisplayDocument() const
{
return mDisplayDocument;
}
/**
* Set the display document for this document. aDisplayDocument must not be
* null.
*/
void SetDisplayDocument(nsIDocument* aDisplayDocument)
{
MOZ_ASSERT(!GetShell() &&
!GetContainer() &&
!GetWindow(),
"Shouldn't set mDisplayDocument on documents that already "
"have a presentation or a docshell or a window");
MOZ_ASSERT(aDisplayDocument, "Must not be null");
MOZ_ASSERT(aDisplayDocument != this, "Should be different document");
MOZ_ASSERT(!aDisplayDocument->GetDisplayDocument(),
"Display documents should not nest");
mDisplayDocument = aDisplayDocument;
mHasDisplayDocument = !!aDisplayDocument;
}
/**
* A class that represents an external resource load that has begun but
* doesn't have a document yet. Observers can be registered on this object,
* and will be notified after the document is created. Observers registered
* after the document has been created will NOT be notified. When observers
* are notified, the subject will be the newly-created document, the topic
* will be "external-resource-document-created", and the data will be null.
* If document creation fails for some reason, observers will still be
* notified, with a null document pointer.
*/
class ExternalResourceLoad : public nsISupports
{
public:
virtual ~ExternalResourceLoad() {}
void AddObserver(nsIObserver* aObserver) {
MOZ_ASSERT(aObserver, "Must have observer");
mObservers.AppendElement(aObserver);
}
const nsTArray< nsCOMPtr<nsIObserver> > & Observers() {
return mObservers;
}
protected:
nsAutoTArray< nsCOMPtr<nsIObserver>, 8 > mObservers;
};
/**
* Request an external resource document for aURI. This will return the
* resource document if available. If one is not available yet, it will
* start loading as needed, and the pending load object will be returned in
* aPendingLoad so that the caller can register an observer to wait for the
* load. If this function returns null and doesn't return a pending load,
* that means that there is no resource document for this URI and won't be
* one in the future.
*
* @param aURI the URI to get
* @param aRequestingNode the node making the request
* @param aPendingLoad the pending load for this request, if any
*/
virtual nsIDocument*
RequestExternalResource(nsIURI* aURI,
nsINode* aRequestingNode,
ExternalResourceLoad** aPendingLoad) = 0;
/**
* Enumerate the external resource documents associated with this document.
* The enumerator callback should return true to continue enumerating, or
* false to stop. This callback will never get passed a null aDocument.
*/
virtual void EnumerateExternalResources(nsSubDocEnumFunc aCallback,
void* aData) = 0;
/**
* Return whether the document is currently showing (in the sense of
* OnPageShow() having been called already and OnPageHide() not having been
* called yet.
*/
bool IsShowing() const { return mIsShowing; }
/**
* Return whether the document is currently visible (in the sense of
* OnPageHide having been called and OnPageShow not yet having been called)
*/
bool IsVisible() const { return mVisible; }
/**
* Return whether the document and all its ancestors are visible in the sense of
* pageshow / hide.
*/
bool IsVisibleConsideringAncestors() const;
/**
* Return true when this document is active, i.e., an active document
* in a content viewer. Note that this will return true for bfcached
* documents, so this does NOT match the "active document" concept in
* the WHATWG spec - see IsCurrentActiveDocument.
*/
bool IsActive() const { return mDocumentContainer && !mRemovedFromDocShell; }
/**
* Return true if this is the current active document for its
* docshell. Note that a docshell may have multiple active documents
* due to the bfcache -- this should be used when you need to
* differentiate the *current* active document from any active
* documents.
*/
bool IsCurrentActiveDocument() const
{
nsPIDOMWindow *inner = GetInnerWindow();
return inner && inner->IsCurrentInnerWindow() && inner->GetDoc() == this;
}
/**
* Register/Unregister the ActivityObserver into mActivityObservers to listen
* the document's activity changes such as OnPageHide, visibility, activity.
* The ActivityObserver objects can be nsIObjectLoadingContent or
* nsIDocumentActivity or HTMLMEdiaElement.
*/
void RegisterActivityObserver(nsISupports* aSupports);
bool UnregisterActivityObserver(nsISupports* aSupports);
// Enumerate all the observers in mActivityObservers by the aEnumerator.
typedef void (* ActivityObserverEnumerator)(nsISupports*, void*);
void EnumerateActivityObservers(ActivityObserverEnumerator aEnumerator,
void* aData);
// Indicates whether mAnimationController has been (lazily) initialized.
// If this returns true, we're promising that GetAnimationController()
// will have a non-null return value.
bool HasAnimationController() { return !!mAnimationController; }
// Getter for this document's SMIL Animation Controller. Performs lazy
// initialization, if this document supports animation and if
// mAnimationController isn't yet initialized.
virtual nsSMILAnimationController* GetAnimationController() = 0;
// Gets the tracker for animations that are waiting to start.
// Returns nullptr if there is no pending animation tracker for this document
// which will be the case if there have never been any CSS animations or
// transitions on elements in the document.
virtual mozilla::PendingAnimationTracker* GetPendingAnimationTracker() = 0;
// Gets the tracker for animations that are waiting to start and
// creates it if it doesn't already exist. As a result, the return value
// will never be nullptr.
virtual mozilla::PendingAnimationTracker*
GetOrCreatePendingAnimationTracker() = 0;
// Makes the images on this document capable of having their animation
// active or suspended. An Image will animate as long as at least one of its
// owning Documents needs it to animate; otherwise it can suspend.
virtual void SetImagesNeedAnimating(bool aAnimating) = 0;
enum SuppressionType {
eAnimationsOnly = 0x1,
// Note that suppressing events also suppresses animation frames, so
// there's no need to split out events in its own bitmask.
eEvents = 0x3,
};
/**
* Prevents user initiated events from being dispatched to the document and
* subdocuments.
*/
virtual void SuppressEventHandling(SuppressionType aWhat,
uint32_t aIncrease = 1) = 0;
/**
* Unsuppress event handling.
* @param aFireEvents If true, delayed events (focus/blur) will be fired
* asynchronously.
*/
virtual void UnsuppressEventHandlingAndFireEvents(SuppressionType aWhat,
bool aFireEvents) = 0;
uint32_t EventHandlingSuppressed() const { return mEventsSuppressed; }
uint32_t AnimationsPaused() const { return mAnimationsPaused; }
bool IsEventHandlingEnabled() {
return !EventHandlingSuppressed() && mScriptGlobalObject;
}
/**
* Increment the number of external scripts being evaluated.
*/
void BeginEvaluatingExternalScript() { ++mExternalScriptsBeingEvaluated; }
/**
* Decrement the number of external scripts being evaluated.
*/
void EndEvaluatingExternalScript() { --mExternalScriptsBeingEvaluated; }
bool IsDNSPrefetchAllowed() const { return mAllowDNSPrefetch; }
/**
* Returns true if this document is allowed to contain XUL element and
* use non-builtin XBL bindings.
*/
bool AllowXULXBL() {
return mAllowXULXBL == eTriTrue ? true :
mAllowXULXBL == eTriFalse ? false :
InternalAllowXULXBL();
}
void ForceEnableXULXBL() {
mAllowXULXBL = eTriTrue;
}
/**
* Returns the template content owner document that owns the content of
* HTMLTemplateElement.
*/
virtual nsIDocument* GetTemplateContentsOwner() = 0;
/**
* true when this document is a static clone of a normal document.
* For example print preview and printing use static documents.
*/
bool IsStaticDocument() { return mIsStaticDocument; }
/**
* Clones the document and subdocuments and stylesheet etc.
* @param aCloneContainer The container for the clone document.
*/
virtual already_AddRefed<nsIDocument>
CreateStaticClone(nsIDocShell* aCloneContainer);
/**
* If this document is a static clone, this returns the original
* document.
*/
nsIDocument* GetOriginalDocument()
{
MOZ_ASSERT(!mOriginalDocument || !mOriginalDocument->GetOriginalDocument());
return mOriginalDocument;
}
/**
* If this document is a static clone, let the original document know that
* we're going away and then release our reference to it.
*/
void UnlinkOriginalDocumentIfStatic();
/**
* These are called by the parser as it encounters <picture> tags, the end of
* said tags, and possible picture <source srcset> sources respectively. These
* are used to inform ResolvePreLoadImage() calls. Unset attributes are
* expected to be marked void.
*
* NOTE that the parser does not attempt to track the current picture nesting
* level or whether the given <source> tag is within a picture -- it is only
* guaranteed to order these calls properly with respect to
* ResolvePreLoadImage.
*/
virtual void PreloadPictureOpened() = 0;
virtual void PreloadPictureClosed() = 0;
virtual void PreloadPictureImageSource(const nsAString& aSrcsetAttr,
const nsAString& aSizesAttr,
const nsAString& aTypeAttr,
const nsAString& aMediaAttr) = 0;
/**
* Called by the parser to resolve an image for preloading. The parser will
* call the PreloadPicture* functions to inform us of possible <picture>
* nesting and possible sources, which are used to inform URL selection
* responsive <picture> or <img srcset> images. Unset attributes are expected
* to be marked void.
*/
virtual already_AddRefed<nsIURI>
ResolvePreloadImage(nsIURI *aBaseURI,
const nsAString& aSrcAttr,
const nsAString& aSrcsetAttr,
const nsAString& aSizesAttr) = 0;
/**
* Called by nsParser to preload images. Can be removed and code moved
* to nsPreloadURIs::PreloadURIs() in file nsParser.cpp whenever the
* parser-module is linked with gklayout-module. aCrossOriginAttr should
* be a void string if the attr is not present.
*/
virtual void MaybePreLoadImage(nsIURI* uri,
const nsAString& aCrossOriginAttr,
ReferrerPolicyEnum aReferrerPolicy) = 0;
/**
* Called by images to forget an image preload when they start doing
* the real load.
*/
virtual void ForgetImagePreload(nsIURI* aURI) = 0;
/**
* Called by nsParser to preload style sheets. Can also be merged into the
* parser if and when the parser is merged with libgklayout. aCrossOriginAttr
* should be a void string if the attr is not present.
*/
virtual void PreloadStyle(nsIURI* aURI, const nsAString& aCharset,
const nsAString& aCrossOriginAttr,
ReferrerPolicyEnum aReferrerPolicy,
const nsAString& aIntegrity) = 0;
/**
* Called by the chrome registry to load style sheets. Can be put
* back there if and when when that module is merged with libgklayout.
*
* This always does a synchronous load. If aIsAgentSheet is true,
* it also uses the system principal and enables unsafe rules.
* DO NOT USE FOR UNTRUSTED CONTENT.
*/
virtual nsresult LoadChromeSheetSync(nsIURI* aURI, bool aIsAgentSheet,
mozilla::CSSStyleSheet** aSheet) = 0;
/**
* Returns true if the locale used for the document specifies a direction of
* right to left. For chrome documents, this comes from the chrome registry.
* This is used to determine the current state for the :-moz-locale-dir pseudoclass
* so once can know whether a document is expected to be rendered left-to-right
* or right-to-left.
*/
virtual bool IsDocumentRightToLeft() { return false; }
/**
* Called by Parser for link rel=preconnect
*/
virtual void MaybePreconnect(nsIURI* uri,
mozilla::CORSMode aCORSMode) = 0;
enum DocumentTheme {
Doc_Theme_Uninitialized, // not determined yet
Doc_Theme_None,
Doc_Theme_Neutral,
Doc_Theme_Dark,
Doc_Theme_Bright
};
/**
* Set the document's pending state object (as serialized using structured
* clone).
*/
void SetStateObject(nsIStructuredCloneContainer *scContainer);
/**
* Returns Doc_Theme_None if there is no lightweight theme specified,
* Doc_Theme_Dark for a dark theme, Doc_Theme_Bright for a light theme, and
* Doc_Theme_Neutral for any other theme. This is used to determine the state
* of the pseudoclasses :-moz-lwtheme and :-moz-lwtheme-text.
*/
virtual int GetDocumentLWTheme() { return Doc_Theme_None; }
/**
* Returns the document state.
* Document state bits have the form NS_DOCUMENT_STATE_* and are declared in
* nsIDocument.h.
*/
virtual mozilla::EventStates GetDocumentState() = 0;
virtual nsISupports* GetCurrentContentSink() = 0;
virtual void SetScrollToRef(nsIURI *aDocumentURI) = 0;
virtual void ScrollToRef() = 0;
virtual void ResetScrolledToRefAlready() = 0;
virtual void SetChangeScrollPosWhenScrollingToRef(bool aValue) = 0;
/**
* This method is similar to GetElementById() from nsIDOMDocument but it
* returns a mozilla::dom::Element instead of a nsIDOMElement.
* It prevents converting nsIDOMElement to mozilla::dom::Element which is
* already converted from mozilla::dom::Element.
*/
virtual Element* GetElementById(const nsAString& aElementId) = 0;
/**
* This method returns _all_ the elements in this document which
* have id aElementId, if there are any. Otherwise it returns null.
*/
virtual const nsTArray<Element*>* GetAllElementsForId(const nsAString& aElementId) const = 0;
/**
* Lookup an image element using its associated ID, which is usually provided
* by |-moz-element()|. Similar to GetElementById, with the difference that
* elements set using mozSetImageElement have higher priority.
* @param aId the ID associated the element we want to lookup
* @return the element associated with |aId|
*/
virtual Element* LookupImageElement(const nsAString& aElementId) = 0;
virtual already_AddRefed<mozilla::dom::UndoManager> GetUndoManager() = 0;
virtual mozilla::dom::DocumentTimeline* Timeline() = 0;
nsresult ScheduleFrameRequestCallback(mozilla::dom::FrameRequestCallback& aCallback,
int32_t *aHandle);
void CancelFrameRequestCallback(int32_t aHandle);
typedef nsTArray<RefPtr<mozilla::dom::FrameRequestCallback>> FrameRequestCallbackList;
/**
* Put this document's frame request callbacks into the provided
* list, and forget about them.
*/
void TakeFrameRequestCallbacks(FrameRequestCallbackList& aCallbacks);
/**
* @return true if this document's frame request callbacks should be
* throttled. We throttle requestAnimationFrame for documents which aren't
* visible (e.g. scrolled out of the viewport).
*/
bool ShouldThrottleFrameRequests();
// This returns true when the document tree is being teared down.
bool InUnlinkOrDeletion() { return mInUnlinkOrDeletion; }
/*
* Image Tracking
*
* Style and content images register their imgIRequests with their document
* so that the document can efficiently tell all descendant images when they
* are and are not visible. When an image is on-screen, we want to call
* LockImage() on it so that it doesn't do things like discarding frame data
* to save memory. The PresShell informs the document whether its images
* should be locked or not via SetImageLockingState().
*
* See bug 512260.
*/
// Add/Remove images from the document image tracker
virtual nsresult AddImage(imgIRequest* aImage) = 0;
// If the REQUEST_DISCARD flag is passed then if the lock count is zero we
// will request the image be discarded now (instead of waiting).
enum { REQUEST_DISCARD = 0x1 };
virtual nsresult RemoveImage(imgIRequest* aImage, uint32_t aFlags = 0) = 0;
// Makes the images on this document locked/unlocked. By default, the locking
// state is unlocked/false.
virtual nsresult SetImageLockingState(bool aLocked) = 0;
virtual nsresult AddPlugin(nsIObjectLoadingContent* aPlugin) = 0;
virtual void RemovePlugin(nsIObjectLoadingContent* aPlugin) = 0;
virtual void GetPlugins(nsTArray<nsIObjectLoadingContent*>& aPlugins) = 0;
virtual nsresult AddResponsiveContent(nsIContent* aContent) = 0;
virtual void RemoveResponsiveContent(nsIContent* aContent) = 0;
virtual void NotifyMediaFeatureValuesChanged() = 0;
virtual nsresult GetStateObject(nsIVariant** aResult) = 0;
virtual nsDOMNavigationTiming* GetNavigationTiming() const = 0;
virtual nsresult SetNavigationTiming(nsDOMNavigationTiming* aTiming) = 0;
virtual Element* FindImageMap(const nsAString& aNormalizedMapName) = 0;
// Add aLink to the set of links that need their status resolved.
void RegisterPendingLinkUpdate(mozilla::dom::Link* aLink);
// Remove aLink from the set of links that need their status resolved.
// This function must be called when links are removed from the document.
void UnregisterPendingLinkUpdate(mozilla::dom::Link* aElement);
// Update state on links in mLinksToUpdate. This function must
// be called prior to selector matching.
void FlushPendingLinkUpdates();
#define DEPRECATED_OPERATION(_op) e##_op,
enum DeprecatedOperations {
#include "nsDeprecatedOperationList.h"
eDeprecatedOperationCount
};
#undef DEPRECATED_OPERATION
bool HasWarnedAbout(DeprecatedOperations aOperation) const;
void WarnOnceAbout(DeprecatedOperations aOperation,
bool asError = false) const;
#define DOCUMENT_WARNING(_op) e##_op,
enum DocumentWarnings {
#include "nsDocumentWarningList.h"
eDocumentWarningCount
};
#undef DOCUMENT_WARNING
bool HasWarnedAbout(DocumentWarnings aWarning) const;
void WarnOnceAbout(DocumentWarnings aWarning,
bool asError = false,
const char16_t **aParams = nullptr,
uint32_t aParamsLength = 0) const;
virtual void PostVisibilityUpdateEvent() = 0;
bool IsSyntheticDocument() const { return mIsSyntheticDocument; }
void SetNeedLayoutFlush() {
mNeedLayoutFlush = true;
if (mDisplayDocument) {
mDisplayDocument->SetNeedLayoutFlush();
}
}
void SetNeedStyleFlush() {
mNeedStyleFlush = true;
if (mDisplayDocument) {
mDisplayDocument->SetNeedStyleFlush();
}
}
// Note: nsIDocument is a sub-class of nsINode, which has a
// SizeOfExcludingThis function. However, because nsIDocument objects can
// only appear at the top of the DOM tree, we have a specialized measurement
// function which returns multiple sizes.
virtual void DocAddSizeOfExcludingThis(nsWindowSizes* aWindowSizes) const;
// DocAddSizeOfIncludingThis doesn't need to be overridden by sub-classes
// because nsIDocument inherits from nsINode; see the comment above the
// declaration of nsINode::SizeOfIncludingThis.
virtual void DocAddSizeOfIncludingThis(nsWindowSizes* aWindowSizes) const;
bool MayHaveDOMMutationObservers()
{
return mMayHaveDOMMutationObservers;
}
void SetMayHaveDOMMutationObservers()
{
mMayHaveDOMMutationObservers = true;
}
bool MayHaveAnimationObservers()
{
return mMayHaveAnimationObservers;
}
void SetMayHaveAnimationObservers()
{
mMayHaveAnimationObservers = true;
}
bool IsInSyncOperation()
{
return mInSyncOperationCount != 0;
}
void SetIsInSyncOperation(bool aSync)
{
if (aSync) {
++mInSyncOperationCount;
} else {
--mInSyncOperationCount;
}
}
bool CreatingStaticClone() const
{
return mCreatingStaticClone;
}
/**
* Creates a new element in the HTML namespace with a local name given by
* aTag.
*/
already_AddRefed<Element> CreateHTMLElement(nsIAtom* aTag);
// WebIDL API
nsIGlobalObject* GetParentObject() const
{
return GetScopeObject();
}
static already_AddRefed<nsIDocument>
Constructor(const GlobalObject& aGlobal,
mozilla::ErrorResult& rv);
virtual mozilla::dom::DOMImplementation*
GetImplementation(mozilla::ErrorResult& rv) = 0;
void GetURL(nsString& retval) const;
void GetDocumentURI(nsString& retval) const;
// Return the URI for the document.
// The returned value may differ if the document is loaded via XHR, and
// when accessed from chrome privileged script and
// from content privileged script for compatibility.
void GetDocumentURIFromJS(nsString& aDocumentURI) const;
void GetCompatMode(nsString& retval) const;
void GetCharacterSet(nsAString& retval) const;
// Skip GetContentType, because our NS_IMETHOD version above works fine here.
// GetDoctype defined above
Element* GetDocumentElement() const
{
return GetRootElement();
}
enum ElementCallbackType {
eCreated,
eAttached,
eDetached,
eAttributeChanged
};
nsIDocument* GetTopLevelContentDocument();
/**
* Registers an unresolved custom element that is a candidate for
* upgrade when the definition is registered via registerElement.
* |aTypeName| is the name of the custom element type, if it is not
* provided, then element name is used. |aTypeName| should be provided
* when registering a custom element that extends an existing
* element. e.g. <button is="x-button">.
*/
virtual nsresult RegisterUnresolvedElement(Element* aElement,
nsIAtom* aTypeName = nullptr) = 0;
virtual void EnqueueLifecycleCallback(ElementCallbackType aType,
Element* aCustomElement,
mozilla::dom::LifecycleCallbackArgs* aArgs = nullptr,
mozilla::dom::CustomElementDefinition* aDefinition = nullptr) = 0;
virtual void SetupCustomElement(Element* aElement,
uint32_t aNamespaceID,
const nsAString* aTypeExtension = nullptr) = 0;
virtual void
RegisterElement(JSContext* aCx, const nsAString& aName,
const mozilla::dom::ElementRegistrationOptions& aOptions,
JS::MutableHandle<JSObject*> aRetval,
mozilla::ErrorResult& rv) = 0;
/**
* In some cases, new document instances must be associated with
* an existing web components custom element registry as specified.
*/
virtual void UseRegistryFromDocument(nsIDocument* aDocument) = 0;
already_AddRefed<nsContentList>
GetElementsByTagName(const nsAString& aTagName)
{
return NS_GetContentList(this, kNameSpaceID_Unknown, aTagName);
}
already_AddRefed<nsContentList>
GetElementsByTagNameNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName,
mozilla::ErrorResult& aResult);
already_AddRefed<nsContentList>
GetElementsByClassName(const nsAString& aClasses);
// GetElementById defined above
already_AddRefed<Element> CreateElement(const nsAString& aTagName,
mozilla::ErrorResult& rv);
already_AddRefed<Element> CreateElementNS(const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
mozilla::ErrorResult& rv);
virtual already_AddRefed<Element> CreateElement(const nsAString& aTagName,
const nsAString& aTypeExtension,
mozilla::ErrorResult& rv) = 0;
virtual already_AddRefed<Element> CreateElementNS(const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
const nsAString& aTypeExtension,
mozilla::ErrorResult& rv) = 0;
already_AddRefed<mozilla::dom::DocumentFragment>
CreateDocumentFragment() const;
already_AddRefed<nsTextNode> CreateTextNode(const nsAString& aData) const;
already_AddRefed<mozilla::dom::Comment>
CreateComment(const nsAString& aData) const;
already_AddRefed<mozilla::dom::ProcessingInstruction>
CreateProcessingInstruction(const nsAString& target, const nsAString& data,
mozilla::ErrorResult& rv) const;
already_AddRefed<nsINode>
ImportNode(nsINode& aNode, bool aDeep, mozilla::ErrorResult& rv) const;
nsINode* AdoptNode(nsINode& aNode, mozilla::ErrorResult& rv);
already_AddRefed<mozilla::dom::Event>
CreateEvent(const nsAString& aEventType, mozilla::ErrorResult& rv) const;
already_AddRefed<nsRange> CreateRange(mozilla::ErrorResult& rv);
already_AddRefed<mozilla::dom::NodeIterator>
CreateNodeIterator(nsINode& aRoot, uint32_t aWhatToShow,
mozilla::dom::NodeFilter* aFilter,
mozilla::ErrorResult& rv) const;
already_AddRefed<mozilla::dom::NodeIterator>
CreateNodeIterator(nsINode& aRoot, uint32_t aWhatToShow,
const mozilla::dom::NodeFilterHolder& aFilter,
mozilla::ErrorResult& rv) const;
already_AddRefed<mozilla::dom::TreeWalker>
CreateTreeWalker(nsINode& aRoot, uint32_t aWhatToShow,
mozilla::dom::NodeFilter* aFilter, mozilla::ErrorResult& rv) const;
already_AddRefed<mozilla::dom::TreeWalker>
CreateTreeWalker(nsINode& aRoot, uint32_t aWhatToShow,
const mozilla::dom::NodeFilterHolder& aFilter,
mozilla::ErrorResult& rv) const;
// Deprecated WebIDL bits
already_AddRefed<mozilla::dom::CDATASection>
CreateCDATASection(const nsAString& aData, mozilla::ErrorResult& rv);
already_AddRefed<mozilla::dom::Attr>
CreateAttribute(const nsAString& aName, mozilla::ErrorResult& rv);
already_AddRefed<mozilla::dom::Attr>
CreateAttributeNS(const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
mozilla::ErrorResult& rv);
void GetInputEncoding(nsAString& aInputEncoding) const;
already_AddRefed<nsLocation> GetLocation() const;
void GetReferrer(nsAString& aReferrer) const;
void GetLastModified(nsAString& aLastModified) const;
void GetReadyState(nsAString& aReadyState) const;
// Not const because otherwise the compiler can't figure out whether to call
// this GetTitle or the nsAString version from non-const methods, since
// neither is an exact match.
virtual void GetTitle(nsString& aTitle) = 0;
virtual void SetTitle(const nsAString& aTitle, mozilla::ErrorResult& rv) = 0;
void GetDir(nsAString& aDirection) const;
void SetDir(const nsAString& aDirection);
nsIDOMWindow* GetDefaultView() const
{
return GetWindow();
}
Element* GetActiveElement();
bool HasFocus(mozilla::ErrorResult& rv) const;
// Event handlers are all on nsINode already
bool MozSyntheticDocument() const
{
return IsSyntheticDocument();
}
Element* GetCurrentScript();
void ReleaseCapture() const;
virtual void MozSetImageElement(const nsAString& aImageElementId,
Element* aElement) = 0;
nsIURI* GetDocumentURIObject() const;
// Not const because all the full-screen goop is not const
virtual bool MozFullScreenEnabled() = 0;
virtual Element* GetMozFullScreenElement(mozilla::ErrorResult& rv) = 0;
bool MozFullScreen()
{
return IsFullScreenDoc();
}
void MozCancelFullScreen();
Element* GetMozPointerLockElement();
void MozExitPointerLock()
{
UnlockPointer(this);
}
bool Hidden() const
{
return mVisibilityState != mozilla::dom::VisibilityState::Visible;
}
bool MozHidden() const
{
WarnOnceAbout(ePrefixedVisibilityAPI);
return Hidden();
}
mozilla::dom::VisibilityState VisibilityState() const
{
return mVisibilityState;
}
mozilla::dom::VisibilityState MozVisibilityState() const
{
WarnOnceAbout(ePrefixedVisibilityAPI);
return VisibilityState();
}
virtual mozilla::dom::StyleSheetList* StyleSheets() = 0;
void GetSelectedStyleSheetSet(nsAString& aSheetSet);
virtual void SetSelectedStyleSheetSet(const nsAString& aSheetSet) = 0;
virtual void GetLastStyleSheetSet(nsString& aSheetSet) = 0;
void GetPreferredStyleSheetSet(nsAString& aSheetSet);
virtual mozilla::dom::DOMStringList* StyleSheetSets() = 0;
virtual void EnableStyleSheetsForSet(const nsAString& aSheetSet) = 0;
Element* ElementFromPoint(float aX, float aY);
/**
* Retrieve the location of the caret position (DOM node and character
* offset within that node), given a point.
*
* @param aX Horizontal point at which to determine the caret position, in
* page coordinates.
* @param aY Vertical point at which to determine the caret position, in
* page coordinates.
*/
already_AddRefed<nsDOMCaretPosition>
CaretPositionFromPoint(float aX, float aY);
// QuerySelector and QuerySelectorAll already defined on nsINode
nsINodeList* GetAnonymousNodes(Element& aElement);
Element* GetAnonymousElementByAttribute(Element& aElement,
const nsAString& aAttrName,
const nsAString& aAttrValue);
Element* GetBindingParent(nsINode& aNode);
void LoadBindingDocument(const nsAString& aURI, mozilla::ErrorResult& rv);
mozilla::dom::XPathExpression*
CreateExpression(const nsAString& aExpression,
mozilla::dom::XPathNSResolver* aResolver,
mozilla::ErrorResult& rv);
nsINode* CreateNSResolver(nsINode& aNodeResolver);
already_AddRefed<mozilla::dom::XPathResult>
Evaluate(JSContext* aCx, const nsAString& aExpression, nsINode& aContextNode,
mozilla::dom::XPathNSResolver* aResolver, uint16_t aType,
JS::Handle<JSObject*> aResult, mozilla::ErrorResult& rv);
// Touch event handlers already on nsINode
already_AddRefed<mozilla::dom::Touch>
CreateTouch(nsIDOMWindow* aView, mozilla::dom::EventTarget* aTarget,
int32_t aIdentifier, int32_t aPageX, int32_t aPageY,
int32_t aScreenX, int32_t aScreenY, int32_t aClientX,
int32_t aClientY, int32_t aRadiusX, int32_t aRadiusY,
float aRotationAngle, float aForce);
already_AddRefed<mozilla::dom::TouchList> CreateTouchList();
already_AddRefed<mozilla::dom::TouchList>
CreateTouchList(mozilla::dom::Touch& aTouch,
const mozilla::dom::Sequence<mozilla::OwningNonNull<mozilla::dom::Touch> >& aTouches);
already_AddRefed<mozilla::dom::TouchList>
CreateTouchList(const mozilla::dom::Sequence<mozilla::OwningNonNull<mozilla::dom::Touch> >& aTouches);
void SetStyleSheetChangeEventsEnabled(bool aValue)
{
mStyleSheetChangeEventsEnabled = aValue;
}
bool StyleSheetChangeEventsEnabled() const
{
return mStyleSheetChangeEventsEnabled;
}
void ObsoleteSheet(nsIURI *aSheetURI, mozilla::ErrorResult& rv);
void ObsoleteSheet(const nsAString& aSheetURI, mozilla::ErrorResult& rv);
// ParentNode
nsIHTMLCollection* Children();
uint32_t ChildElementCount();
virtual nsHTMLDocument* AsHTMLDocument() { return nullptr; }
virtual mozilla::dom::SVGDocument* AsSVGDocument() { return nullptr; }
// The root document of the import tree. If this document is not an import
// this will return the document itself.
virtual nsIDocument* MasterDocument() = 0;
virtual void SetMasterDocument(nsIDocument* master) = 0;
virtual bool IsMasterDocument() = 0;
virtual mozilla::dom::ImportManager* ImportManager() = 0;
// We keep track of the order of sub imports were added to the document.
virtual bool HasSubImportLink(nsINode* aLink) = 0;
virtual uint32_t IndexOfSubImportLink(nsINode* aLink) = 0;
virtual void AddSubImportLink(nsINode* aLink) = 0;
virtual nsINode* GetSubImportLink(uint32_t aIdx) = 0;
/*
* Given a node, get a weak reference to it and append that reference to
* mBlockedTrackingNodes. Can be used later on to look up a node in it.
* (e.g., by the UI)
*/
void AddBlockedTrackingNode(nsINode *node)
{
if (!node) {
return;
}
nsWeakPtr weakNode = do_GetWeakReference(node);
if (weakNode) {
mBlockedTrackingNodes.AppendElement(weakNode);
}
}
gfxUserFontSet* GetUserFontSet();
void FlushUserFontSet();
void RebuildUserFontSet(); // asynchronously
mozilla::dom::FontFaceSet* GetFonts() { return mFontFaceSet; }
// FontFaceSource
mozilla::dom::FontFaceSet* Fonts();
bool DidFireDOMContentLoaded() const { return mDidFireDOMContentLoaded; }
void SetDocumentUseCounter(mozilla::UseCounter aUseCounter)
{
if (!mUseCounters[aUseCounter]) {
mUseCounters[aUseCounter] = true;
}
}
void SetPageUseCounter(mozilla::UseCounter aUseCounter);
void SetDocumentAndPageUseCounter(mozilla::UseCounter aUseCounter)
{
SetDocumentUseCounter(aUseCounter);
SetPageUseCounter(aUseCounter);
}
void PropagateUseCounters(nsIDocument* aParentDocument);
void SetUserHasInteracted(bool aUserHasInteracted)
{
mUserHasInteracted = aUserHasInteracted;
}
bool UserHasInteracted()
{
return mUserHasInteracted;
}
protected:
bool GetUseCounter(mozilla::UseCounter aUseCounter)
{
return mUseCounters[aUseCounter];
}
void SetChildDocumentUseCounter(mozilla::UseCounter aUseCounter)
{
if (!mChildDocumentUseCounters[aUseCounter]) {
mChildDocumentUseCounters[aUseCounter] = true;
}
}
bool GetChildDocumentUseCounter(mozilla::UseCounter aUseCounter)
{
return mChildDocumentUseCounters[aUseCounter];
}
private:
mutable std::bitset<eDeprecatedOperationCount> mDeprecationWarnedAbout;
mutable std::bitset<eDocumentWarningCount> mDocWarningWarnedAbout;
SelectorCache mSelectorCache;
protected:
~nsIDocument();
nsPropertyTable* GetExtraPropertyTable(uint16_t aCategory);
// Never ever call this. Only call GetWindow!
virtual nsPIDOMWindow *GetWindowInternal() const = 0;
// Never ever call this. Only call GetScriptHandlingObject!
virtual nsIScriptGlobalObject* GetScriptHandlingObjectInternal() const = 0;
// Never ever call this. Only call AllowXULXBL!
virtual bool InternalAllowXULXBL() = 0;
/**
* These methods should be called before and after dispatching
* a mutation event.
* To make this easy and painless, use the mozAutoSubtreeModified helper class.
*/
virtual void WillDispatchMutationEvent(nsINode* aTarget) = 0;
virtual void MutationEventDispatched(nsINode* aTarget) = 0;
friend class mozAutoSubtreeModified;
virtual Element* GetNameSpaceElement() override
{
return GetRootElement();
}
void SetContentTypeInternal(const nsACString& aType);
nsCString GetContentTypeInternal() const
{
return mContentType;
}
mozilla::dom::XPathEvaluator* XPathEvaluator();
void HandleRebuildUserFontSet() {
mPostedFlushUserFontSet = false;
FlushUserFontSet();
}
nsCString mReferrer;
nsString mLastModified;
nsCOMPtr<nsIURI> mDocumentURI;
nsCOMPtr<nsIURI> mOriginalURI;
nsCOMPtr<nsIURI> mChromeXHRDocURI;
nsCOMPtr<nsIURI> mDocumentBaseURI;
nsCOMPtr<nsIURI> mChromeXHRDocBaseURI;
nsWeakPtr mDocumentLoadGroup;
bool mReferrerPolicySet;
ReferrerPolicyEnum mReferrerPolicy;
bool mUpgradeInsecureRequests;
bool mUpgradeInsecurePreloads;
mozilla::WeakPtr<nsDocShell> mDocumentContainer;
nsCString mCharacterSet;
int32_t mCharacterSetSource;
// This is just a weak pointer; the parent document owns its children.
nsIDocument* mParentDocument;
// A reference to the element last returned from GetRootElement().
mozilla::dom::Element* mCachedRootElement;
// This is a weak reference, but we hold a strong reference to mNodeInfo,
// which in turn holds a strong reference to this mNodeInfoManager.
nsNodeInfoManager* mNodeInfoManager;
RefPtr<mozilla::css::Loader> mCSSLoader;
RefPtr<mozilla::css::ImageLoader> mStyleImageLoader;
RefPtr<nsHTMLStyleSheet> mAttrStyleSheet;
RefPtr<nsHTMLCSSStyleSheet> mStyleAttrStyleSheet;
RefPtr<mozilla::SVGAttrAnimationRuleProcessor> mSVGAttrAnimationRuleProcessor;
// The set of all object, embed, applet, video/audio elements or
// nsIObjectLoadingContent or nsIDocumentActivity for which this is the
// owner document. (They might not be in the document.)
// These are non-owning pointers, the elements are responsible for removing
// themselves when they go away.
nsAutoPtr<nsTHashtable<nsPtrHashKey<nsISupports> > > mActivityObservers;
// The set of all links that need their status resolved. Links must add themselves
// to this set by calling RegisterPendingLinkUpdate when added to a document and must
// remove themselves by calling UnregisterPendingLinkUpdate when removed from a document.
nsTHashtable<nsPtrHashKey<mozilla::dom::Link> > mLinksToUpdate;
// SMIL Animation Controller, lazily-initialized in GetAnimationController
RefPtr<nsSMILAnimationController> mAnimationController;
// Table of element properties for this document.
nsPropertyTable mPropertyTable;
nsTArray<nsAutoPtr<nsPropertyTable> > mExtraPropertyTables;
// Our cached .children collection
nsCOMPtr<nsIHTMLCollection> mChildrenCollection;
// container for per-context fonts (downloadable, SVG, etc.)
RefPtr<mozilla::dom::FontFaceSet> mFontFaceSet;
// Compatibility mode
nsCompatibility mCompatMode;
// Our readyState
ReadyState mReadyState;
// Our visibility state
mozilla::dom::VisibilityState mVisibilityState;
// True if BIDI is enabled.
bool mBidiEnabled : 1;
// True if a MathML element has ever been owned by this document.
bool mMathMLEnabled : 1;
// True if this document is the initial document for a window. This should
// basically be true only for documents that exist in newly-opened windows or
// documents created to satisfy a GetDocument() on a window when there's no
// document in it.
bool mIsInitialDocumentInWindow : 1;
// True if we're loaded as data and therefor has any dangerous stuff, such
// as scripts and plugins, disabled.
bool mLoadedAsData : 1;
// This flag is only set in XMLDocument, for e.g. documents used in XBL. We
// don't want animations to play in such documents, so we need to store the
// flag here so that we can check it in nsDocument::GetAnimationController.
bool mLoadedAsInteractiveData : 1;
// If true, whoever is creating the document has gotten it to the
// point where it's safe to start layout on it.
bool mMayStartLayout : 1;
// True iff we've ever fired a DOMTitleChanged event for this document
bool mHaveFiredTitleChange : 1;
// State for IsShowing(). mIsShowing starts off false. It becomes true when
// OnPageShow happens and becomes false when OnPageHide happens. So it's false
// before the initial load completes and when we're in bfcache or unloaded,
// true otherwise.
bool mIsShowing : 1;
// State for IsVisible(). mVisible starts off true. It becomes false when
// OnPageHide happens, and becomes true again when OnPageShow happens. So
// it's false only when we're in bfcache or unloaded.
bool mVisible : 1;
// True if our content viewer has been removed from the docshell
// (it may still be displayed, but in zombie state). Form control data
// has been saved.
bool mRemovedFromDocShell : 1;
// True iff DNS prefetch is allowed for this document. Note that if the
// document has no window, DNS prefetch won't be performed no matter what.
bool mAllowDNSPrefetch : 1;
// True when this document is a static clone of a normal document
bool mIsStaticDocument : 1;
// True while this document is being cloned to a static document.
bool mCreatingStaticClone : 1;
// True iff the document is being unlinked or deleted.
bool mInUnlinkOrDeletion : 1;
// True if document has ever had script handling object.
bool mHasHadScriptHandlingObject : 1;
// True if we're an SVG document being used as an image.
bool mIsBeingUsedAsImage : 1;
// True is this document is synthetic : stand alone image, video, audio
// file, etc.
bool mIsSyntheticDocument : 1;
// True if this document has links whose state needs updating
bool mHasLinksToUpdate : 1;
// True if a layout flush might not be a no-op
bool mNeedLayoutFlush : 1;
// True if a style flush might not be a no-op
bool mNeedStyleFlush : 1;
// True if a DOMMutationObserver is perhaps attached to a node in the document.
bool mMayHaveDOMMutationObservers : 1;
// True if an nsIAnimationObserver is perhaps attached to a node in the document.
bool mMayHaveAnimationObservers : 1;
// True if a document has loaded Mixed Active Script (see nsMixedContentBlocker.cpp)
bool mHasMixedActiveContentLoaded : 1;
// True if a document has blocked Mixed Active Script (see nsMixedContentBlocker.cpp)
bool mHasMixedActiveContentBlocked : 1;
// True if a document has loaded Mixed Display/Passive Content (see nsMixedContentBlocker.cpp)
bool mHasMixedDisplayContentLoaded : 1;
// True if a document has blocked Mixed Display/Passive Content (see nsMixedContentBlocker.cpp)
bool mHasMixedDisplayContentBlocked : 1;
// True if a document has blocked Tracking Content
bool mHasTrackingContentBlocked : 1;
// True if a document has loaded Tracking Content
bool mHasTrackingContentLoaded : 1;
// True if DisallowBFCaching has been called on this document.
bool mBFCacheDisallowed : 1;
bool mHasHadDefaultView : 1;
// Whether style sheet change events will be dispatched for this document
bool mStyleSheetChangeEventsEnabled : 1;
// Whether the document was created by a srcdoc iframe.
bool mIsSrcdocDocument : 1;
// Records whether we've done a document.open. If this is true, it's possible
// for nodes from this document to have outdated wrappers in their wrapper
// caches.
bool mDidDocumentOpen : 1;
// Whether this document has a display document and thus is considered to
// be a resource document. Normally this is the same as !!mDisplayDocument,
// but mDisplayDocument is cleared during Unlink. mHasDisplayDocument is
// valid in the document's destructor.
bool mHasDisplayDocument : 1;
// Is the current mFontFaceSet valid?
bool mFontFaceSetDirty : 1;
// Has GetUserFontSet() been called?
bool mGetUserFontSetCalled : 1;
// Do we currently have an event posted to call FlushUserFontSet?
bool mPostedFlushUserFontSet : 1;
enum Type {
eUnknown, // should never be used
eHTML,
eXHTML,
eGenericXML,
eSVG,
eXUL
};
Type mType;
uint8_t mDefaultElementType;
enum Tri {
eTriUnset = 0,
eTriFalse,
eTriTrue
};
Tri mAllowXULXBL;
#ifdef DEBUG
/**
* This is true while FlushPendingLinkUpdates executes. Calls to
* [Un]RegisterPendingLinkUpdate will assert when this is true.
*/
bool mIsLinkUpdateRegistrationsForbidden;
#endif
// The document's script global object, the object from which the
// document can get its script context and scope. This is the
// *inner* window object.
nsCOMPtr<nsIScriptGlobalObject> mScriptGlobalObject;
// If mIsStaticDocument is true, mOriginalDocument points to the original
// document.
nsCOMPtr<nsIDocument> mOriginalDocument;
// The bidi options for this document. What this bitfield means is
// defined in nsBidiUtils.h
uint32_t mBidiOptions;
// The sandbox flags on the document. These reflect the value of the sandbox attribute of the
// associated IFRAME or CSP-protectable content, if existent. These are set at load time and
// are immutable - see nsSandboxFlags.h for the possible flags.
uint32_t mSandboxFlags;
nsCString mContentLanguage;
// The channel that got passed to nsDocument::StartDocumentLoad(), if any.
nsCOMPtr<nsIChannel> mChannel;
private:
nsCString mContentType;
nsString mId;
protected:
// The document's security info
nsCOMPtr<nsISupports> mSecurityInfo;
// The channel that failed to load and resulted in an error page.
// This only applies to error pages. Might be null.
nsCOMPtr<nsIChannel> mFailedChannel;
// if this document is part of a multipart document,
// the ID can be used to distinguish it from the other parts.
uint32_t mPartID;
// Cycle collector generation in which we're certain that this document
// won't be collected
uint32_t mMarkedCCGeneration;
nsIPresShell* mPresShell;
nsCOMArray<nsINode> mSubtreeModifiedTargets;
uint32_t mSubtreeModifiedDepth;
// If we're an external resource document, this will be non-null and will
// point to our "display document": the one that all resource lookups should
// go to.
nsCOMPtr<nsIDocument> mDisplayDocument;
uint32_t mEventsSuppressed;
uint32_t mAnimationsPaused;
/**
* The number number of external scripts (ones with the src attribute) that
* have this document as their owner and that are being evaluated right now.
*/
uint32_t mExternalScriptsBeingEvaluated;
/**
* The current frame request callback handle
*/
int32_t mFrameRequestCallbackCounter;
// Count of live static clones of this document.
uint32_t mStaticCloneCount;
// Array of nodes that have been blocked to prevent user tracking.
// They most likely have had their nsIChannel canceled by the URL
// classifier. (Safebrowsing)
//
// Weak nsINode pointers are used to allow nodes to disappear.
nsTArray<nsWeakPtr> mBlockedTrackingNodes;
// Weak reference to mScriptGlobalObject QI:d to nsPIDOMWindow,
// updated on every set of mScriptGlobalObject.
nsPIDOMWindow *mWindow;
nsCOMPtr<nsIDocumentEncoder> mCachedEncoder;
struct FrameRequest;
nsTArray<FrameRequest> mFrameRequestCallbacks;
// This object allows us to evict ourself from the back/forward cache. The
// pointer is non-null iff we're currently in the bfcache.
nsIBFCacheEntry *mBFCacheEntry;
// Our base target.
nsString mBaseTarget;
nsCOMPtr<nsIStructuredCloneContainer> mStateObjectContainer;
nsCOMPtr<nsIVariant> mStateObjectCached;
uint32_t mInSyncOperationCount;
RefPtr<mozilla::dom::XPathEvaluator> mXPathEvaluator;
nsTArray<RefPtr<mozilla::dom::AnonymousContent>> mAnonymousContents;
uint32_t mBlockDOMContentLoaded;
bool mDidFireDOMContentLoaded:1;
// Our live MediaQueryLists
PRCList mDOMMediaQueryLists;
// Flags for use counters used directly by this document.
std::bitset<mozilla::eUseCounter_Count> mUseCounters;
// Flags for use counters used by any child documents of this document.
std::bitset<mozilla::eUseCounter_Count> mChildDocumentUseCounters;
// Flags for whether we've notified our top-level "page" of a use counter
// for this child document.
std::bitset<mozilla::eUseCounter_Count> mNotifiedPageForUseCounter;
// Whether the user has interacted with the document or not:
bool mUserHasInteracted;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIDocument, NS_IDOCUMENT_IID)
/**
* mozAutoSubtreeModified batches DOM mutations so that a DOMSubtreeModified
* event is dispatched, if necessary, when the outermost mozAutoSubtreeModified
* object is deleted.
*/
class MOZ_STACK_CLASS mozAutoSubtreeModified
{
public:
/**
* @param aSubTreeOwner The document in which a subtree will be modified.
* @param aTarget The target of the possible DOMSubtreeModified event.
* Can be nullptr, in which case mozAutoSubtreeModified
* is just used to batch DOM mutations.
*/
mozAutoSubtreeModified(nsIDocument* aSubtreeOwner, nsINode* aTarget)
{
UpdateTarget(aSubtreeOwner, aTarget);
}
~mozAutoSubtreeModified()
{
UpdateTarget(nullptr, nullptr);
}
void UpdateTarget(nsIDocument* aSubtreeOwner, nsINode* aTarget)
{
if (mSubtreeOwner) {
mSubtreeOwner->MutationEventDispatched(mTarget);
}
mTarget = aTarget;
mSubtreeOwner = aSubtreeOwner;
if (mSubtreeOwner) {
mSubtreeOwner->WillDispatchMutationEvent(mTarget);
}
}
private:
nsCOMPtr<nsINode> mTarget;
nsCOMPtr<nsIDocument> mSubtreeOwner;
};
class MOZ_STACK_CLASS nsAutoSyncOperation
{
public:
explicit nsAutoSyncOperation(nsIDocument* aDocument);
~nsAutoSyncOperation();
private:
nsCOMArray<nsIDocument> mDocuments;
uint32_t mMicroTaskLevel;
};
// XXX These belong somewhere else
nsresult
NS_NewHTMLDocument(nsIDocument** aInstancePtrResult, bool aLoadedAsData = false);
nsresult
NS_NewXMLDocument(nsIDocument** aInstancePtrResult, bool aLoadedAsData = false,
bool aIsPlainDocument = false);
nsresult
NS_NewSVGDocument(nsIDocument** aInstancePtrResult);
nsresult
NS_NewImageDocument(nsIDocument** aInstancePtrResult);
nsresult
NS_NewVideoDocument(nsIDocument** aInstancePtrResult);
// Note: it's the caller's responsibility to create or get aPrincipal as needed
// -- this method will not attempt to get a principal based on aDocumentURI.
// Also, both aDocumentURI and aBaseURI must not be null.
nsresult
NS_NewDOMDocument(nsIDOMDocument** aInstancePtrResult,
const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
nsIDOMDocumentType* aDoctype,
nsIURI* aDocumentURI,
nsIURI* aBaseURI,
nsIPrincipal* aPrincipal,
bool aLoadedAsData,
nsIGlobalObject* aEventObject,
DocumentFlavor aFlavor);
// This is used only for xbl documents created from the startup cache.
// Non-cached documents are created in the same manner as xml documents.
nsresult
NS_NewXBLDocument(nsIDOMDocument** aInstancePtrResult,
nsIURI* aDocumentURI,
nsIURI* aBaseURI,
nsIPrincipal* aPrincipal);
nsresult
NS_NewPluginDocument(nsIDocument** aInstancePtrResult);
inline nsIDocument*
nsINode::GetOwnerDocument() const
{
nsIDocument* ownerDoc = OwnerDoc();
return ownerDoc != this ? ownerDoc : nullptr;
}
inline nsINode*
nsINode::OwnerDocAsNode() const
{
return OwnerDoc();
}
inline mozilla::dom::ParentObject
nsINode::GetParentObject() const
{
mozilla::dom::ParentObject p(OwnerDoc());
// Note that mUseXBLScope is a no-op for chrome, and other places where we
// don't use XBL scopes.
p.mUseXBLScope = IsInAnonymousSubtree() && !IsAnonymousContentInSVGUseSubtree();
return p;
}
#endif /* nsIDocument_h___ */