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gecko-dev
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gecko-dev/dom/html/nsHTMLDocument.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsHTMLDocument_h___
#define nsHTMLDocument_h___
#include "mozilla/Attributes.h"
#include "nsDocument.h"
#include "nsIHTMLDocument.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIHTMLCollection.h"
#include "nsIScriptElement.h"
#include "nsTArray.h"
#include "PLDHashTable.h"
#include "nsIHttpChannel.h"
#include "nsHTMLStyleSheet.h"
#include "nsThreadUtils.h"
#include "nsICommandManager.h"
#include "mozilla/dom/HTMLSharedElement.h"
#include "mozilla/dom/BindingDeclarations.h"
class nsIURI;
class nsIDocShell;
class nsICachingChannel;
class nsIWyciwygChannel;
class nsILoadGroup;
namespace mozilla {
namespace dom {
class HTMLAllCollection;
} // namespace dom
} // namespace mozilla
class nsHTMLDocument : public nsDocument,
public nsIHTMLDocument,
public nsIDOMHTMLDocument
{
public:
using nsDocument::SetDocumentURI;
using nsDocument::GetPlugins;
nsHTMLDocument();
virtual nsresult Init() override;
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsHTMLDocument, nsDocument)
// nsIDocument
virtual void Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup) override;
virtual void ResetToURI(nsIURI* aURI, nsILoadGroup* aLoadGroup,
nsIPrincipal* aPrincipal) override;
virtual nsresult StartDocumentLoad(const char* aCommand,
nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener **aDocListener,
bool aReset = true,
nsIContentSink* aSink = nullptr) override;
virtual void StopDocumentLoad() override;
virtual void BeginLoad() override;
virtual void EndLoad() override;
// nsIHTMLDocument
virtual void SetCompatibilityMode(nsCompatibility aMode) override;
virtual bool IsWriting() override
{
return mWriteLevel != uint32_t(0);
}
virtual nsIContent* GetUnfocusedKeyEventTarget() override;
nsContentList* GetForms();
nsContentList* GetExistingForms() const
{
return mForms;
}
// nsIDOMDocument interface
using nsDocument::CreateElement;
using nsDocument::CreateElementNS;
NS_FORWARD_NSIDOMDOCUMENT(nsDocument::)
// And explicitly import the things from nsDocument that we just shadowed
using nsDocument::GetImplementation;
using nsDocument::GetTitle;
using nsDocument::SetTitle;
using nsDocument::GetLastStyleSheetSet;
using nsDocument::MozSetImageElement;
// nsIDOMNode interface
NS_FORWARD_NSIDOMNODE_TO_NSINODE
// nsIDOMHTMLDocument interface
NS_DECL_NSIDOMHTMLDOCUMENT
mozilla::dom::HTMLAllCollection* All();
nsISupports* ResolveName(const nsAString& aName, nsWrapperCache **aCache);
virtual void AddedForm() override;
virtual void RemovedForm() override;
virtual int32_t GetNumFormsSynchronous() override;
virtual void TearingDownEditor() override;
virtual void SetIsXHTML(bool aXHTML) override
{
mType = (aXHTML ? eXHTML : eHTML);
}
virtual void SetDocWriteDisabled(bool aDisabled) override
{
mDisableDocWrite = aDisabled;
}
nsresult ChangeContentEditableCount(nsIContent *aElement, int32_t aChange) override;
void DeferredContentEditableCountChange(nsIContent *aElement);
virtual EditingState GetEditingState() override
{
return mEditingState;
}
virtual void DisableCookieAccess() override
{
mDisableCookieAccess = true;
}
class nsAutoEditingState {
public:
nsAutoEditingState(nsHTMLDocument* aDoc, EditingState aState)
: mDoc(aDoc), mSavedState(aDoc->mEditingState)
{
aDoc->mEditingState = aState;
}
~nsAutoEditingState() {
mDoc->mEditingState = mSavedState;
}
private:
nsHTMLDocument* mDoc;
EditingState mSavedState;
};
friend class nsAutoEditingState;
void EndUpdate(nsUpdateType aUpdateType) override;
virtual void SetMayStartLayout(bool aMayStartLayout) override;
virtual nsresult SetEditingState(EditingState aState) override;
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
bool aPreallocateChildren) const override;
virtual void RemovedFromDocShell() override;
virtual mozilla::dom::Element *GetElementById(const nsAString& aElementId) override
{
return nsDocument::GetElementById(aElementId);
}
virtual void DocAddSizeOfExcludingThis(nsWindowSizes& aWindowSizes) const override;
// DocAddSizeOfIncludingThis is inherited from nsIDocument.
virtual bool WillIgnoreCharsetOverride() override;
// WebIDL API
virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
override;
void SetDomain(const nsAString& aDomain, mozilla::ErrorResult& rv);
bool IsRegistrableDomainSuffixOfOrEqualTo(const nsAString& aHostSuffixString,
const nsACString& aOrigHost);
void GetCookie(nsAString& aCookie, mozilla::ErrorResult& rv);
void SetCookie(const nsAString& aCookie, mozilla::ErrorResult& rv);
void NamedGetter(JSContext* cx, const nsAString& aName, bool& aFound,
JS::MutableHandle<JSObject*> aRetval,
mozilla::ErrorResult& rv);
void GetSupportedNames(nsTArray<nsString>& aNames);
nsGenericHTMLElement *GetBody();
void SetBody(nsGenericHTMLElement* aBody, mozilla::ErrorResult& rv);
mozilla::dom::HTMLSharedElement *GetHead() {
return static_cast<mozilla::dom::HTMLSharedElement*>(GetHeadElement());
}
nsIHTMLCollection* Images();
nsIHTMLCollection* Embeds();
nsIHTMLCollection* Plugins();
nsIHTMLCollection* Links();
nsIHTMLCollection* Forms()
{
return nsHTMLDocument::GetForms();
}
nsIHTMLCollection* Scripts();
already_AddRefed<nsIDocument> Open(JSContext* cx,
const nsAString& aType,
const nsAString& aReplace,
mozilla::ErrorResult& aError);
already_AddRefed<nsPIDOMWindowOuter>
Open(JSContext* cx,
const nsAString& aURL,
const nsAString& aName,
const nsAString& aFeatures,
bool aReplace,
mozilla::ErrorResult& rv);
void Close(mozilla::ErrorResult& rv);
void Write(JSContext* cx, const mozilla::dom::Sequence<nsString>& aText,
mozilla::ErrorResult& rv);
void Writeln(JSContext* cx, const mozilla::dom::Sequence<nsString>& aText,
mozilla::ErrorResult& rv);
void GetDesignMode(nsAString& aDesignMode,
nsIPrincipal& aSubjectPrincipal)
{
GetDesignMode(aDesignMode);
}
void SetDesignMode(const nsAString& aDesignMode,
nsIPrincipal& aSubjectPrincipal,
mozilla::ErrorResult& rv);
void SetDesignMode(const nsAString& aDesignMode,
const mozilla::Maybe<nsIPrincipal*>& aSubjectPrincipal,
mozilla::ErrorResult& rv);
bool ExecCommand(const nsAString& aCommandID, bool aDoShowUI,
const nsAString& aValue,
nsIPrincipal& aSubjectPrincipal,
mozilla::ErrorResult& rv);
bool QueryCommandEnabled(const nsAString& aCommandID,
nsIPrincipal& aSubjectPrincipal,
mozilla::ErrorResult& rv);
bool QueryCommandIndeterm(const nsAString& aCommandID,
mozilla::ErrorResult& rv);
bool QueryCommandState(const nsAString& aCommandID, mozilla::ErrorResult& rv);
bool QueryCommandSupported(const nsAString& aCommandID,
mozilla::dom::CallerType aCallerType);
void QueryCommandValue(const nsAString& aCommandID, nsAString& aValue,
mozilla::ErrorResult& rv);
// The XPCOM Get/SetFgColor work OK for us, since they never throw.
// The XPCOM Get/SetLinkColor work OK for us, since they never throw.
// The XPCOM Get/SetVLinkColor work OK for us, since they never throw.
// The XPCOM Get/SetALinkColor work OK for us, since they never throw.
// The XPCOM Get/SetBgColor work OK for us, since they never throw.
nsIHTMLCollection* Anchors();
nsIHTMLCollection* Applets();
void Clear() const
{
// Deprecated
}
// The XPCOM CaptureEvents works fine for us.
// The XPCOM ReleaseEvents works fine for us.
// We're picking up GetLocation from Document
already_AddRefed<mozilla::dom::Location> GetLocation() const
{
return nsIDocument::GetLocation();
}
virtual nsHTMLDocument* AsHTMLDocument() override { return this; }
static bool MatchFormControls(Element* aElement, int32_t aNamespaceID,
nsAtom* aAtom, void* aData);
void GetFormsAndFormControls(nsContentList** aFormList,
nsContentList** aFormControlList);
protected:
~nsHTMLDocument();
nsresult GetBodySize(int32_t* aWidth,
int32_t* aHeight);
nsIContent *MatchId(nsIContent *aContent, const nsAString& aId);
static bool MatchLinks(mozilla::dom::Element* aElement, int32_t aNamespaceID,
nsAtom* aAtom, void* aData);
static bool MatchAnchors(mozilla::dom::Element* aElement, int32_t aNamespaceID,
nsAtom* aAtom, void* aData);
static void DocumentWriteTerminationFunc(nsISupports *aRef);
already_AddRefed<nsIURI> GetDomainURI();
already_AddRefed<nsIURI> CreateInheritingURIForHost(const nsACString& aHostString);
already_AddRefed<nsIURI> RegistrableDomainSuffixOfInternal(const nsAString& aHostSuffixString,
nsIURI* aOrigHost);
nsresult WriteCommon(JSContext *cx, const nsAString& aText,
bool aNewlineTerminate);
// A version of WriteCommon used by WebIDL bindings
void WriteCommon(JSContext *cx,
const mozilla::dom::Sequence<nsString>& aText,
bool aNewlineTerminate,
mozilla::ErrorResult& rv);
nsresult CreateAndAddWyciwygChannel(void);
nsresult RemoveWyciwygChannel(void);
// This should *ONLY* be used in GetCookie/SetCookie.
already_AddRefed<nsIChannel> CreateDummyChannelForCookies(nsIURI* aCodebaseURI);
/**
* Like IsEditingOn(), but will flush as needed first.
*/
bool IsEditingOnAfterFlush();
void *GenerateParserKey(void);
// A helper class to keep nsContentList objects alive for a short period of
// time. Note, when the final Release is called on an nsContentList object, it
// removes itself from MutationObserver list.
class ContentListHolder : public mozilla::Runnable
{
public:
ContentListHolder(nsHTMLDocument* aDocument,
nsContentList* aFormList,
nsContentList* aFormControlList)
: mozilla::Runnable("ContentListHolder")
, mDocument(aDocument)
, mFormList(aFormList)
, mFormControlList(aFormControlList)
{
}
~ContentListHolder()
{
MOZ_ASSERT(!mDocument->mContentListHolder ||
mDocument->mContentListHolder == this);
mDocument->mContentListHolder = nullptr;
}
RefPtr<nsHTMLDocument> mDocument;
RefPtr<nsContentList> mFormList;
RefPtr<nsContentList> mFormControlList;
};
friend class ContentListHolder;
ContentListHolder* mContentListHolder;
RefPtr<nsContentList> mImages;
RefPtr<nsEmptyContentList> mApplets;
RefPtr<nsContentList> mEmbeds;
RefPtr<nsContentList> mLinks;
RefPtr<nsContentList> mAnchors;
RefPtr<nsContentList> mScripts;
RefPtr<nsContentList> mForms;
RefPtr<mozilla::dom::HTMLAllCollection> mAll;
/** # of forms in the document, synchronously set */
int32_t mNumForms;
static uint32_t gWyciwygSessionCnt;
static void TryHintCharset(nsIContentViewer* aContentViewer,
int32_t& aCharsetSource,
NotNull<const Encoding*>& aEncoding);
void TryUserForcedCharset(nsIContentViewer* aCv,
nsIDocShell* aDocShell,
int32_t& aCharsetSource,
NotNull<const Encoding*>& aEncoding);
static void TryCacheCharset(nsICachingChannel* aCachingChannel,
int32_t& aCharsetSource,
NotNull<const Encoding*>& aEncoding);
void TryParentCharset(nsIDocShell* aDocShell,
int32_t& charsetSource,
NotNull<const Encoding*>& aEncoding);
void TryTLD(int32_t& aCharsetSource, NotNull<const Encoding*>& aCharset);
static void TryFallback(int32_t& aCharsetSource,
NotNull<const Encoding*>& aEncoding);
// Override so we can munge the charset on our wyciwyg channel as needed.
virtual void
SetDocumentCharacterSet(NotNull<const Encoding*> aEncoding) override;
// Tracks if we are currently processing any document.write calls (either
// implicit or explicit). Note that if a write call writes out something which
// would block the parser, then mWriteLevel will be incorrect until the parser
// finishes processing that script.
uint32_t mWriteLevel;
// Load flags of the document's channel
uint32_t mLoadFlags;
bool mTooDeepWriteRecursion;
bool mDisableDocWrite;
bool mWarnedWidthHeight;
nsCOMPtr<nsIWyciwygChannel> mWyciwygChannel;
/* Midas implementation */
nsresult GetMidasCommandManager(nsICommandManager** aCommandManager);
nsCOMPtr<nsICommandManager> mMidasCommandManager;
nsresult TurnEditingOff();
nsresult EditingStateChanged();
void MaybeEditingStateChanged();
uint32_t mContentEditableCount;
EditingState mEditingState;
// When false, the .cookies property is completely disabled
bool mDisableCookieAccess;
/**
* Temporary flag that is set in EndUpdate() to ignore
* MaybeEditingStateChanged() script runners from a nested scope.
*/
bool mPendingMaybeEditingStateChanged;
};
#define NS_HTML_DOCUMENT_INTERFACE_TABLE_BEGIN(_class) \
NS_DOCUMENT_INTERFACE_TABLE_BEGIN(_class) \
NS_INTERFACE_TABLE_ENTRY(_class, nsIHTMLDocument) \
NS_INTERFACE_TABLE_ENTRY(_class, nsIDOMHTMLDocument)
#endif /* nsHTMLDocument_h___ */
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