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 "nsContentList.h"
#include "mozilla/dom/Document.h"
#include "nsIHTMLDocument.h"
#include "nsIHTMLCollection.h"
#include "nsIScriptElement.h"
#include "nsTArray.h"
#include "PLDHashTable.h"
#include "nsIHttpChannel.h"
#include "nsThreadUtils.h"
#include "mozilla/dom/HTMLSharedElement.h"
#include "mozilla/dom/BindingDeclarations.h"
class nsCommandManager;
class nsIURI;
class nsIDocShell;
class nsICachingChannel;
class nsILoadGroup;
namespace mozilla {
namespace dom {
class HTMLAllCollection;
template <typename T>
struct Nullable;
class WindowProxyHolder;
} // namespace dom
} // namespace mozilla
class nsHTMLDocument : public mozilla::dom::Document, public nsIHTMLDocument {
protected:
typedef mozilla::net::ReferrerPolicy ReferrerPolicy;
typedef mozilla::dom::Document Document;
typedef mozilla::Encoding Encoding;
template <typename T>
using NotNull = mozilla::NotNull<T>;
public:
using Document::GetPlugins;
using Document::SetDocumentURI;
nsHTMLDocument();
virtual nsresult Init() override;
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsHTMLDocument, Document)
// Document
virtual void Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup) override;
virtual void ResetToURI(nsIURI* aURI, nsILoadGroup* aLoadGroup,
nsIPrincipal* aPrincipal,
nsIPrincipal* aStoragePrincipal) override;
virtual nsresult StartDocumentLoad(const char* aCommand, nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener** aDocListener,
bool aReset = true,
nsIContentSink* aSink = nullptr) override;
virtual void BeginLoad() override;
virtual void EndLoad() override;
protected:
virtual bool UseWidthDeviceWidthFallbackViewport() const override;
public:
// nsIHTMLDocument
virtual void SetCompatibilityMode(nsCompatibility aMode) override;
virtual bool IsWriting() override { return mWriteLevel != uint32_t(0); }
virtual Element* GetUnfocusedKeyEventTarget() override;
nsContentList* GetExistingForms() const { return mForms; }
mozilla::dom::HTMLAllCollection* All();
// Returns whether an object was found for aName.
bool ResolveName(JSContext* aCx, const nsAString& aName,
JS::MutableHandle<JS::Value> aRetval,
mozilla::ErrorResult& aError);
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; }
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() override;
virtual void SetMayStartLayout(bool aMayStartLayout) override;
virtual nsresult SetEditingState(EditingState aState) override;
virtual nsresult Clone(mozilla::dom::NodeInfo*,
nsINode** aResult) const override;
virtual void RemovedFromDocShell() override;
using mozilla::dom::DocumentOrShadowRoot::GetElementById;
virtual void DocAddSizeOfExcludingThis(
nsWindowSizes& aWindowSizes) const override;
// DocAddSizeOfIncludingThis is inherited from Document.
virtual bool WillIgnoreCharsetOverride() override;
// WebIDL API
virtual JSObject* WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
void GetDomain(nsAString& aDomain);
void SetDomain(const nsAString& aDomain, mozilla::ErrorResult& rv);
bool IsRegistrableDomainSuffixOfOrEqualTo(const nsAString& aHostSuffixString,
const nsACString& aOrigHost);
void NamedGetter(JSContext* cx, const nsAString& aName, bool& aFound,
JS::MutableHandle<JSObject*> aRetval,
mozilla::ErrorResult& rv) {
JS::Rooted<JS::Value> v(cx);
if ((aFound = ResolveName(cx, aName, &v, rv))) {
aRetval.set(v.toObjectOrNull());
}
}
void GetSupportedNames(nsTArray<nsString>& aNames);
Document* Open(const mozilla::dom::Optional<nsAString>& /* unused */,
const nsAString& /* unused */, mozilla::ErrorResult& aError);
mozilla::dom::Nullable<mozilla::dom::WindowProxyHolder> Open(
const nsAString& aURL, const nsAString& aName, const nsAString& aFeatures,
bool aReplace, mozilla::ErrorResult& rv);
void Close(mozilla::ErrorResult& rv);
void Write(const mozilla::dom::Sequence<nsString>& aText,
mozilla::ErrorResult& rv);
void Writeln(const mozilla::dom::Sequence<nsString>& aText,
mozilla::ErrorResult& rv);
void GetDesignMode(nsAString& aDesignMode);
void SetDesignMode(const nsAString& aDesignMode,
nsIPrincipal& aSubjectPrincipal, mozilla::ErrorResult& rv);
void SetDesignMode(const nsAString& aDesignMode,
const mozilla::Maybe<nsIPrincipal*>& aSubjectPrincipal,
mozilla::ErrorResult& rv);
MOZ_CAN_RUN_SCRIPT
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);
MOZ_CAN_RUN_SCRIPT
void QueryCommandValue(const nsAString& aCommandID, nsAString& aValue,
mozilla::ErrorResult& rv);
void GetFgColor(nsAString& aFgColor);
void SetFgColor(const nsAString& aFgColor);
void GetLinkColor(nsAString& aLinkColor);
void SetLinkColor(const nsAString& aLinkColor);
void GetVlinkColor(nsAString& aAvlinkColor);
void SetVlinkColor(const nsAString& aVlinkColor);
void GetAlinkColor(nsAString& aAlinkColor);
void SetAlinkColor(const nsAString& aAlinkColor);
void GetBgColor(nsAString& aBgColor);
void SetBgColor(const nsAString& aBgColor);
void Clear() const {
// Deprecated
}
void CaptureEvents();
void ReleaseEvents();
// We're picking up GetLocation from Document
already_AddRefed<mozilla::dom::Location> GetLocation() const {
return Document::GetLocation();
}
static bool MatchFormControls(Element* aElement, int32_t aNamespaceID,
nsAtom* aAtom, void* aData);
void GetFormsAndFormControls(nsContentList** aFormList,
nsContentList** aFormControlList);
void UserInteractionForTesting();
void SetKeyPressEventModel(uint16_t aKeyPressEventModel);
protected:
~nsHTMLDocument();
nsresult GetBodySize(int32_t* aWidth, int32_t* aHeight);
nsIContent* MatchId(nsIContent* aContent, const nsAString& aId);
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);
void WriteCommon(const nsAString& aText, bool aNewlineTerminate,
mozilla::ErrorResult& aRv);
// A version of WriteCommon used by WebIDL bindings
void WriteCommon(const mozilla::dom::Sequence<nsString>& aText,
bool aNewlineTerminate, mozilla::ErrorResult& rv);
/**
* 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<mozilla::dom::HTMLAllCollection> mAll;
/** # of forms in the document, synchronously set */
int32_t mNumForms;
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);
/**
* MaybeDispatchCheckKeyPressEventModelEvent() dispatches
* "CheckKeyPressEventModel" event to check whether we should dispatch
* keypress events in confluent model or split model. This should be
* called only when mEditingState is changed to eDesignMode or
* eConentEditable at first time.
*/
void MaybeDispatchCheckKeyPressEventModelEvent();
// 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;
/* Midas implementation */
nsCommandManager* GetMidasCommandManager();
RefPtr<nsCommandManager> mMidasCommandManager;
nsresult TurnEditingOff();
// MOZ_CAN_RUN_SCRIPT_BOUNDARY because this is called from all sorts
// of places, and I'm pretty sure the exact ExecCommand call it
// makes cannot actually run script.
MOZ_CAN_RUN_SCRIPT_BOUNDARY nsresult EditingStateChanged();
void MaybeEditingStateChanged();
uint32_t mContentEditableCount;
EditingState mEditingState;
/**
* Temporary flag that is set in EndUpdate() to ignore
* MaybeEditingStateChanged() script runners from a nested scope.
*/
bool mPendingMaybeEditingStateChanged;
// mHasBeenEditable is set to true when mEditingState is firstly set to
// eDesignMode or eContentEditable.
bool mHasBeenEditable;
/**
* Set to true once we know that we are loading plain text content.
*/
bool mIsPlainText;
};
namespace mozilla {
namespace dom {
inline nsHTMLDocument* Document::AsHTMLDocument() {
MOZ_ASSERT(IsHTMLOrXHTML());
return static_cast<nsHTMLDocument*>(this);
}
} // namespace dom
} // namespace mozilla
#define NS_HTML_DOCUMENT_INTERFACE_TABLE_BEGIN(_class) \
NS_DOCUMENT_INTERFACE_TABLE_BEGIN(_class) \
NS_INTERFACE_TABLE_ENTRY(_class, nsIHTMLDocument)
#endif /* nsHTMLDocument_h___ */