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RetroZilla/content/base/public/nsIDocument.h
Ryan Nematz 2f2ae146c0 first commit
2015-10-20 23:03:22 -04:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIDocument_h___
#define nsIDocument_h___
#include "nsISupports.h"
#include "nsEvent.h"
#include "nsString.h"
#include "nsCOMArray.h"
#include "nsIDocumentObserver.h"
#include "nsCOMPtr.h"
#include "nsIURI.h"
#include "nsIBindingManager.h"
#include "nsWeakPtr.h"
#include "nsIWeakReferenceUtils.h"
#include "nsILoadGroup.h"
#include "nsReadableUtils.h"
#include "nsCRT.h"
#include "mozFlushType.h"
#include "nsPropertyTable.h"
#include "nsHashSets.h"
#include "nsAutoPtr.h"
class nsIAtom;
class nsIContent;
class nsPresContext;
class nsIPresShell;
class nsIStreamListener;
class nsIStreamObserver;
class nsStyleSet;
class nsIStyleSheet;
class nsIStyleRule;
class nsIViewManager;
class nsIScriptGlobalObject;
class nsPIDOMWindow;
class nsIDOMEvent;
class nsIDeviceContext;
class nsIParser;
class nsIDOMNode;
class nsIDOMDocumentFragment;
class nsILineBreaker;
class nsIWordBreaker;
class nsISelection;
class nsIChannel;
class nsIPrincipal;
class nsIDOMDocument;
class nsIDOMDocumentType;
class nsIObserver;
class nsISupportsArray;
class nsIScriptLoader;
class nsIContentSink;
class nsIScriptEventManager;
class nsNodeInfoManager;
class nsICSSLoader;
class nsHTMLStyleSheet;
class nsIHTMLCSSStyleSheet;
class nsILayoutHistoryState;
// IID for the nsIDocument interface
#define NS_IDOCUMENT_IID \
{ 0xd7c47f55, 0x480b, 0x4a60, \
{ 0x9a, 0xdf, 0xca, 0x49, 0x87, 0x3c, 0x71, 0xe2 } }
// The base value for the content ID counter.
// This counter is used by the document to
// assign a monotonically increasing ID to each content
// object it creates
#define NS_CONTENT_ID_COUNTER_BASE 10000
// Flag for AddStyleSheet().
#define NS_STYLESHEET_FROM_CATALOG (1 << 0)
//----------------------------------------------------------------------
// Document interface
class nsIDocument : public nsISupports
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_IID)
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
nsIDocument()
: mCharacterSet(NS_LITERAL_CSTRING("ISO-8859-1")),
mNextContentID(NS_CONTENT_ID_COUNTER_BASE),
mNodeInfoManager(nsnull),
mPartID(0)
{
}
virtual nsresult StartDocumentLoad(const char* aCommand,
nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener **aDocListener,
PRBool aReset,
nsIContentSink* aSink = nsnull) = 0;
virtual void StopDocumentLoad() = 0;
/**
* Return the title of the document. May return null.
*/
const nsAFlatString& GetDocumentTitle() const
{
return mDocumentTitle;
}
/**
* Return the URI for the document. May return null.
*/
nsIURI* GetDocumentURI() const
{
return mDocumentURI;
}
void SetDocumentURI(nsIURI* aURI)
{
mDocumentURI = aURI;
}
/**
* Return the principal responsible for this document.
*/
virtual nsIPrincipal* GetPrincipal() = 0;
/**
* 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
{
nsILoadGroup *group = nsnull;
if (mDocumentLoadGroup)
CallQueryReferent(mDocumentLoadGroup.get(), &group);
return group;
}
/**
* 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.
*/
nsIURI* GetBaseURI() const
{
return mDocumentBaseURI ? mDocumentBaseURI : mDocumentURI;
}
virtual nsresult SetBaseURI(nsIURI* aURI) = 0;
/**
* Get/Set the base target of a link in a document.
*/
virtual void GetBaseTarget(nsAString &aBaseTarget) const = 0;
virtual void SetBaseTarget(const nsAString &aBaseTarget) = 0;
/**
* Return a standard name for the document's character set. This
* will trigger a startDocumentLoad if necessary to answer the
* question.
*/
const nsAFlatCString& 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;
PRInt32 GetDocumentCharacterSetSource() const
{
return mCharacterSetSource;
}
void SetDocumentCharacterSetSource(PRInt32 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;
/**
* Get the Content-Type of this document.
* (This will always return NS_OK, but has this signature to be compatible
* with nsIDOMNSDocument::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
{
CopyASCIItoUCS2(mContentLanguage, aContentLanguage);
}
// The state BidiEnabled 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.
*/
PRBool 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(PRBool aBidiEnabled)
{
mBidiEnabled = aBidiEnabled;
}
/**
* Return the Line Breaker for the document
*/
virtual nsILineBreaker* GetLineBreaker() = 0;
virtual void SetLineBreaker(nsILineBreaker* aLineBreaker) = 0;
virtual nsIWordBreaker* GetWordBreaker() = 0;
virtual void SetWordBreaker(nsIWordBreaker* aWordBreaker) = 0;
/**
* 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).
*/
virtual nsresult CreateShell(nsPresContext* aContext,
nsIViewManager* aViewManager,
nsStyleSet* aStyleSet,
nsIPresShell** aInstancePtrResult) = 0;
virtual PRBool DeleteShell(nsIPresShell* aShell) = 0;
virtual PRUint32 GetNumberOfShells() const = 0;
virtual nsIPresShell *GetShellAt(PRUint32 aIndex) const = 0;
/**
* 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;
}
/**
* Set the sub document for aContent to aSubDoc.
*/
virtual nsresult SetSubDocumentFor(nsIContent *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 nsIContent *FindContentForSubDocument(nsIDocument *aDocument) const = 0;
/**
* Return the root content object for this document.
*/
nsIContent *GetRootContent() const
{
return mRootContent;
}
/**
* Set aRoot as the root content object for this document. If aRoot is
* non-null, this should not be called on documents that currently have a
* root content without first clearing out the document's children. Passing
* in null to unbind the existing root content is allowed. This method will
* bind aRoot to the document; the caller need not call BindToTree on aRoot.
*
* Note that this method never sends out nsIDocumentObserver notifications;
* doing that is the caller's responsibility.
*/
virtual nsresult SetRootContent(nsIContent* aRoot) = 0;
/**
* Get the direct children of the document - content in
* the prolog, the root content and content in the epilog.
*/
virtual nsIContent *GetChildAt(PRUint32 aIndex) const = 0;
virtual PRInt32 IndexOf(nsIContent* aPossibleChild) const = 0;
virtual PRUint32 GetChildCount() const = 0;
/**
* Accessors to the collection of stylesheets owned by this document.
* Style sheets are ordered, most significant last.
*/
/**
* Get the number of stylesheets
*
* @return the number of stylesheets
* @throws no exceptions
*/
virtual PRInt32 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 nsIStyleSheet* GetStyleSheetAt(PRInt32 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(nsIStyleSheet* aSheet, PRInt32 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 PRInt32 GetIndexOfStyleSheet(nsIStyleSheet* 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(nsCOMArray<nsIStyleSheet>& aOldSheets,
nsCOMArray<nsIStyleSheet>& aNewSheets) = 0;
/**
* Add a stylesheet to the document
*/
virtual void AddStyleSheet(nsIStyleSheet* aSheet) = 0;
/**
* Remove a stylesheet from the document
*/
virtual void RemoveStyleSheet(nsIStyleSheet* 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(nsIStyleSheet* aSheet,
PRBool aApplicable) = 0;
/**
* Just like the style sheet API, but for "catalog" sheets,
* extra sheets inserted at the UA level.
*/
virtual PRInt32 GetNumberOfCatalogStyleSheets() const = 0;
virtual nsIStyleSheet* GetCatalogStyleSheetAt(PRInt32 aIndex) const = 0;
virtual void AddCatalogStyleSheet(nsIStyleSheet* aSheet) = 0;
virtual void EnsureCatalogStyleSheet(const char *aStyleSheetURI) = 0;
/**
* Get this document's CSSLoader. This is guaranteed to not return null.
*/
nsICSSLoader* CSSLoader() const {
return mCSSLoader;
}
/**
* 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.
*/
virtual nsHTMLStyleSheet* GetAttributeStyleSheet() const = 0;
/**
* Get this document's inline style sheet. May return null if there
* isn't one
*/
virtual nsIHTMLCSSStyleSheet* GetInlineStyleSheet() const = 0;
/**
* Get/set the object from which a document can get a script context
* and scope. This is the context within which all scripts (during
* document creation and during event handling) will run. Note that
* this is the *inner* window object.
*/
virtual nsIScriptGlobalObject* GetScriptGlobalObject() const = 0;
virtual void SetScriptGlobalObject(nsIScriptGlobalObject* aGlobalObject) = 0;
/**
* Return the window containing the document (the outer window).
*/
virtual nsPIDOMWindow *GetWindow() = 0;
/**
* Get the script loader for this document
*/
virtual nsIScriptLoader* GetScriptLoader() = 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.
*/
virtual void AddObserver(nsIDocumentObserver* aObserver) = 0;
/**
* Remove an observer of document change notifications. This will
* return false if the observer cannot be found.
*/
virtual PRBool 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;
virtual void CharacterDataChanged(nsIContent* aContent, PRBool aAppend) = 0;
// notify that one or two content nodes changed state
// either may be nsnull, but not both
virtual void ContentStatesChanged(nsIContent* aContent1,
nsIContent* aContent2,
PRInt32 aStateMask) = 0;
virtual void AttributeWillChange(nsIContent* aChild,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute) = 0;
virtual void AttributeChanged(nsIContent* aChild,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType) = 0;
virtual void ContentAppended(nsIContent* aContainer,
PRInt32 aNewIndexInContainer) = 0;
virtual void ContentInserted(nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer) = 0;
virtual void ContentRemoved(nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer) = 0;
// Observation hooks for style data to propagate notifications
// to document observers
virtual void StyleRuleChanged(nsIStyleSheet* aStyleSheet,
nsIStyleRule* aOldStyleRule,
nsIStyleRule* aNewStyleRule) = 0;
virtual void StyleRuleAdded(nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule) = 0;
virtual void StyleRuleRemoved(nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule) = 0;
virtual nsresult HandleDOMEvent(nsPresContext* aPresContext,
nsEvent* aEvent, nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus* aEventStatus) = 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;
PRInt32 GetAndIncrementContentID()
{
return mNextContentID++;
}
nsIBindingManager* BindingManager() const
{
return mBindingManager;
}
/**
* 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.
*/
virtual void Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup) = 0;
/**
* Reset this document to aURI and aLoadGroup. aURI must not be null.
*/
virtual void ResetToURI(nsIURI *aURI, nsILoadGroup* aLoadGroup) = 0;
/**
* Set the container (docshell) for this document.
*/
void SetContainer(nsISupports *aContainer)
{
mDocumentContainer = do_GetWeakReference(aContainer);
}
/**
* Get the container (docshell) for this document.
*/
already_AddRefed<nsISupports> GetContainer() const
{
nsISupports* container = nsnull;
if (mDocumentContainer)
CallQueryReferent(mDocumentContainer.get(), &container);
return container;
}
virtual nsIScriptEventManager* GetScriptEventManager() = 0;
/**
* 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 PRUnichar *aVersion,
const PRUnichar *aEncoding,
const PRInt32 aStandalone) = 0;
virtual void GetXMLDeclaration(nsAString& aVersion,
nsAString& aEncoding,
nsAString& Standalone) = 0;
virtual PRBool IsCaseSensitive()
{
return PR_TRUE;
}
virtual PRBool IsScriptEnabled() = 0;
virtual nsresult AddXMLEventsContent(nsIContent * aXMLEventsElement) = 0;
virtual PRBool IsLoadedAsData()
{
return PR_FALSE;
}
/**
* Create an element with the specified name, prefix and namespace ID.
* If aDocumentDefaultType is true we create an element of the default type
* for that document (currently XHTML in HTML documents and XUL in XUL
* documents), otherwise we use the type specified by the namespace ID.
*/
virtual nsresult CreateElem(nsIAtom *aName, nsIAtom *aPrefix,
PRInt32 aNamespaceID,
PRBool aDocumentDefaultType,
nsIContent** aResult) = 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;
}
/**
* Returns the default namespace ID used for elements created in this
* document.
*/
virtual PRInt32 GetDefaultNamespaceID() const = 0;
virtual void* GetProperty(nsIAtom *aPropertyName,
nsresult *aStatus = nsnull) const = 0;
virtual nsresult SetProperty(nsIAtom *aPropertyName,
void *aValue,
NSPropertyDtorFunc aDtor = nsnull) = 0;
virtual nsresult DeleteProperty(nsIAtom *aPropertyName) = 0;
virtual void* UnsetProperty(nsIAtom *aPropertyName,
nsresult *aStatus = nsnull) = 0;
nsPropertyTable* PropertyTable() { return &mPropertyTable; }
/**
* Sets the ID used to identify this part of the multipart document
*/
void SetPartID(PRUint32 aID) {
mPartID = aID;
}
/**
* Return the ID used to identify this part of the multipart document
*/
PRUint32 GetPartID() const {
return mPartID;
}
/**
* Sanitize the document by resetting all input elements and forms that have
* autocomplete=off to their default values.
*/
virtual nsresult Sanitize() = 0;
/**
* Enumerate all subdocuments.
* The enumerator callback should return PR_TRUE to continue enumerating, or
* PR_FALSE to stop.
*/
typedef PRBool (*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 PRBool 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;
/**
* 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). onload may fire synchronously from inside
* the UnblockOnload() call.
*/
virtual void BlockOnload() = 0;
virtual void UnblockOnload() = 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
* nsIDOMPageTransitionEvent.idl for a description of the |aPersisted|
* parameter.
*/
virtual void OnPageShow(PRBool aPersisted) = 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 nsIDOMPageTransitionEvent.idl for a description of the
* |aPersisted| parameter.
*/
virtual void OnPageHide(PRBool aPersisted) = 0;
/*
* We record the set of links in the document that are relevant to
* style.
*/
/**
* Notification that an element is a link with a given URI that is
* relevant to style.
*/
virtual void AddStyleRelevantLink(nsIContent* aContent, nsIURI* aURI) = 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(nsIContent* aContent) = 0;
/**
* Notification that the visitedness state of a URI has been changed
* and style related to elements linking to that URI should be updated.
*/
virtual void NotifyURIVisitednessChanged(nsIURI* aURI) = 0;
protected:
~nsIDocument()
{
// XXX The cleanup of mNodeInfoManager (calling DropDocumentReference and
// releasing it) happens in the nsDocument destructor. We'd prefer to
// do it here but nsNodeInfoManager is a concrete class that we don't
// want to expose to users of the nsIDocument API outside of Gecko.
}
nsString mDocumentTitle;
nsCOMPtr<nsIURI> mDocumentURI;
nsCOMPtr<nsIURI> mDocumentBaseURI;
nsWeakPtr mDocumentLoadGroup;
nsWeakPtr mDocumentContainer;
nsCString mCharacterSet;
PRInt32 mCharacterSetSource;
// This is just a weak pointer; the parent document owns its children.
nsIDocument* mParentDocument;
// A weak reference to the only child element, or null if no
// such element exists.
nsIContent* mRootContent;
// A content ID counter used to give a monotonically increasing ID
// to the content objects in the document's content model
PRInt32 mNextContentID;
nsCOMPtr<nsIBindingManager> mBindingManager;
nsNodeInfoManager* mNodeInfoManager; // [STRONG]
nsICSSLoader* mCSSLoader; // [STRONG; not a COMPtr to avoid
// including nsICSSLoader.h; the ownership
// is managed by nsDocument]
// Table of element properties for this document.
nsPropertyTable mPropertyTable;
// True if BIDI is enabled.
PRBool mBidiEnabled;
nsXPIDLCString mContentLanguage;
nsCString mContentType;
// The document's security info
nsCOMPtr<nsISupports> mSecurityInfo;
// if this document is part of a multipart document,
// the ID can be used to distinguish it from the other parts.
PRUint32 mPartID;
};
// IID for the nsIDocument_MOZILLA_1_8_0_BRANCH interface
#define NS_IDOCUMENT_MOZILLA_1_8_0_BRANCH_IID \
{ 0x7d001ad2, 0x01ac, 0x4bf2, \
{ 0xb8, 0x3a, 0x50, 0xaa, 0xed, 0xc6, 0x1d, 0xfa } }
class nsIDocument_MOZILLA_1_8_0_BRANCH : public nsISupports
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_MOZILLA_1_8_0_BRANCH_IID)
/**
* 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 nsIScriptGlobalObject* GetScopeObject() = 0;
/**
* Remove a child from this document.
*
* @param aIndex the index of the child to remove
* @param aNotify whether to notify the document that the remove has
* occurred
*/
virtual nsresult RemoveChildAt(PRUint32 aIndex, PRBool aNotify) = 0;
};
// IID for the nsIDocument_MOZILLA_1_8_BRANCH2 interface
#define NS_IDOCUMENT_MOZILLA_1_8_BRANCH2_IID \
{ 0x095024b5, 0x57d1, 0x4117, \
{ 0xb6, 0x02, 0x5c, 0x6d, 0xf2, 0x81, 0xe0, 0xba } }
class nsIDocument_MOZILLA_1_8_BRANCH2 : public nsISupports
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_MOZILLA_1_8_BRANCH2_IID)
nsIDocument_MOZILLA_1_8_BRANCH2() :
mIsInitialDocumentInWindow(PR_FALSE)
{
}
/**
* Ask this document whether it's the initial document in its window.
*/
PRBool 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(PRBool aIsInitialDocument)
{
mIsInitialDocumentInWindow = aIsInitialDocument;
}
protected:
// 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.
PRBool mIsInitialDocumentInWindow;
};
#define NS_IDOCUMENT_MOZILLA_1_8_BRANCH3_IID \
{ 0x23da8ffb, 0x095d, 0x4215, \
{ 0x9a, 0x93, 0x3e, 0x0f, 0xe4, 0x10, 0x89, 0x0b } }
class nsIDocument_MOZILLA_1_8_BRANCH3 : public nsISupports
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IDOCUMENT_MOZILLA_1_8_BRANCH3_IID)
/**
* 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 PR_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.
*/
virtual nsIScriptGlobalObject*
GetScriptHandlingObject(PRBool& aHasHadScriptHandlingObject) const = 0;
virtual void SetScriptHandlingObject(nsIScriptGlobalObject* aScriptObject) = 0;
protected:
};
/**
* Helper class to automatically handle batching of document updates. This
* class will call BeginUpdate on construction and EndUpdate on destruction on
* the given document with the given update type. The document could be null,
* in which case no updates will be called. The constructor also takes a
* boolean that can be set to false to prevent notifications.
*/
class mozAutoDocUpdate
{
public:
mozAutoDocUpdate(nsIDocument* aDocument, nsUpdateType aUpdateType,
PRBool aNotify) :
mDocument(aNotify ? aDocument : nsnull),
mUpdateType(aUpdateType)
{
if (mDocument) {
mDocument->BeginUpdate(mUpdateType);
}
}
~mozAutoDocUpdate()
{
if (mDocument) {
mDocument->EndUpdate(mUpdateType);
}
}
private:
nsCOMPtr<nsIDocument> mDocument;
nsUpdateType mUpdateType;
};
// XXX These belong somewhere else
nsresult
NS_NewHTMLDocument(nsIDocument** aInstancePtrResult);
nsresult
NS_NewXMLDocument(nsIDocument** aInstancePtrResult);
#ifdef MOZ_SVG
nsresult
NS_NewSVGDocument(nsIDocument** aInstancePtrResult);
#endif
nsresult
NS_NewImageDocument(nsIDocument** aInstancePtrResult);
nsresult
NS_NewDocumentFragment(nsIDOMDocumentFragment** aInstancePtrResult,
nsNodeInfoManager *aNodeInfoManager);
nsresult
NS_NewDOMDocument_MOZILLA_1_8_BRANCH(nsIDOMDocument** aInstancePtrResult,
const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
nsIDOMDocumentType* aDoctype,
nsIURI* aBaseURI,
nsIScriptGlobalObject* aScriptHandler,
PRBool aLoadedAsData);
nsresult
NS_NewDOMDocument(nsIDOMDocument** aInstancePtrResult,
const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
nsIDOMDocumentType* aDoctype,
nsIURI* aBaseURI);
nsresult
NS_NewPluginDocument(nsIDocument** aInstancePtrResult);
#endif /* nsIDocument_h___ */
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