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Mozilla/mozilla/content/base/src/nsDocument.cpp
dbaron%fas.harvard.edu 7270634490 Fix leak of stylesheets. r=waterson 
git-svn-id: svn://10.0.0.236/trunk@76776 18797224-902f-48f8-a5cc-f745e15eee43
2000-08-21 13:05:53 +00:00

3884 lines
107 KiB
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Pierre Phaneuf <pp@ludusdesign.com>
*/
#include "plstr.h"
#include "nsCOMPtr.h"
#include "nsIInterfaceRequestor.h"
#include "nsDocument.h"
#include "nsIArena.h"
#include "nsIURL.h"
#include "nsILoadGroup.h"
#include "nsIChannel.h"
#include "nsString.h"
#include "nsIContent.h"
#include "nsIDocumentObserver.h"
#include "nsIStyleSet.h"
#include "nsIStyleSheet.h"
#include "nsIPresShell.h"
#include "nsIDocumentObserver.h"
#include "nsEventListenerManager.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptEventListener.h"
#include "nsDOMEvent.h"
#include "nsDOMEventsIIDs.h"
#include "nsIPrivateDOMEvent.h"
#include "nsIEventStateManager.h"
#include "nsContentList.h"
#include "nsIObserver.h"
#include "nsIDOMEventListener.h"
#include "nsIDOMFormListener.h"
#include "nsIDOMPaintListener.h"
#include "nsIDOMMouseListener.h"
#include "nsIDOMMouseMotionListener.h"
#include "nsIDOMKeyListener.h"
#include "nsIDOMFocusListener.h"
#include "nsIDOMLoadListener.h"
#include "nsIDOMStyleSheet.h"
#include "nsIDOMStyleSheetList.h"
#include "nsDOMAttribute.h"
#include "nsDOMCID.h"
#include "nsIDOMScriptObjectFactory.h"
#include "nsIDOMDOMImplementation.h"
#include "nsIDOMDocumentView.h"
#include "nsIDOMAbstractView.h"
#include "nsIDOMDocumentXBL.h"
#include "nsIDOMNavigator.h"
#include "nsGenericElement.h"
#include "nsICSSStyleSheet.h"
#include "nsITextContent.h"
#include "nsIDocumentEncoder.h"
//#include "nsIXIFConverter.h"
#include "nsIHTMLContentSink.h"
//#include "nsHTMLContentSinkStream.h"
//#include "nsHTMLToTXTSinkStream.h"
//#include "nsXIFDTD.h"
#include "nsIParser.h"
#include "nsParserCIID.h"
#include "nsFileSpec.h"
#include "nsFileStream.h"
#include "nsRange.h"
#include "nsIDOMText.h"
#include "nsIDOMComment.h"
#include "nsDOMDocumentType.h"
#include "nsINameSpaceManager.h"
#include "nsIServiceManager.h"
#include "nsLayoutAtoms.h"
#include "nsLayoutCID.h"
#include "nsIDOMSelection.h"
#include "nsIDOMRange.h"
#include "nsIEnumerator.h"
#include "nsDOMError.h"
#include "nsIScrollableView.h"
#include "nsIFrame.h"
#include "nsLayoutUtils.h"
#include "nsNodeInfoManager.h"
#include "nsIXBLService.h"
#include "nsNetUtil.h" // for NS_MakeAbsoluteURI
#include "nsIScriptSecurityManager.h"
#include "nsIAggregatePrincipal.h"
#include "nsIPrivateDOMImplementation.h"
#include "nsIInterfaceRequestor.h"
#include "nsIDOMWindow.h"
#include "nsIDOMElement.h"
#include "nsIAnonymousContentCreator.h"
static NS_DEFINE_CID(kXIFConverterCID, NS_XIFCONVERTER_CID);
static NS_DEFINE_CID(kCRangeCID, NS_RANGE_CID);
static NS_DEFINE_CID(kDOMScriptObjectFactoryCID, NS_DOM_SCRIPT_OBJECT_FACTORY_CID);
#include "nsILineBreakerFactory.h"
#include "nsIWordBreakerFactory.h"
#include "nsLWBrkCIID.h"
static NS_DEFINE_CID(kLWBrkCID, NS_LWBRK_CID);
#include "nsIHTMLDocument.h"
class nsDOMStyleSheetList : public nsIDOMStyleSheetList,
public nsIScriptObjectOwner,
public nsIDocumentObserver
{
public:
nsDOMStyleSheetList(nsIDocument *aDocument);
virtual ~nsDOMStyleSheetList();
NS_DECL_ISUPPORTS
NS_DECL_IDOMSTYLESHEETLIST
NS_IMETHOD BeginUpdate(nsIDocument *aDocument) { return NS_OK; }
NS_IMETHOD EndUpdate(nsIDocument *aDocument) { return NS_OK; }
NS_IMETHOD BeginLoad(nsIDocument *aDocument) { return NS_OK; }
NS_IMETHOD EndLoad(nsIDocument *aDocument) { return NS_OK; }
NS_IMETHOD BeginReflow(nsIDocument *aDocument,
nsIPresShell* aShell) { return NS_OK; }
NS_IMETHOD EndReflow(nsIDocument *aDocument,
nsIPresShell* aShell) { return NS_OK; }
NS_IMETHOD ContentChanged(nsIDocument *aDocument,
nsIContent* aContent,
nsISupports* aSubContent) { return NS_OK; }
NS_IMETHOD ContentStatesChanged(nsIDocument* aDocument,
nsIContent* aContent1,
nsIContent* aContent2) { return NS_OK; }
NS_IMETHOD AttributeChanged(nsIDocument *aDocument,
nsIContent* aContent,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aHint) { return NS_OK; }
NS_IMETHOD ContentAppended(nsIDocument *aDocument,
nsIContent* aContainer,
PRInt32 aNewIndexInContainer)
{ return NS_OK; }
NS_IMETHOD ContentInserted(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer) { return NS_OK; }
NS_IMETHOD ContentReplaced(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aOldChild,
nsIContent* aNewChild,
PRInt32 aIndexInContainer) { return NS_OK; }
NS_IMETHOD ContentRemoved(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer) { return NS_OK; }
NS_IMETHOD StyleSheetAdded(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet);
NS_IMETHOD StyleSheetRemoved(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet);
NS_IMETHOD StyleSheetDisabledStateChanged(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet,
PRBool aDisabled) { return NS_OK; }
NS_IMETHOD StyleRuleChanged(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule,
PRInt32 aHint) { return NS_OK; }
NS_IMETHOD StyleRuleAdded(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule) { return NS_OK; }
NS_IMETHOD StyleRuleRemoved(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule) { return NS_OK; }
NS_IMETHOD DocumentWillBeDestroyed(nsIDocument *aDocument);
// nsIScriptObjectOwner interface
NS_IMETHOD GetScriptObject(nsIScriptContext *aContext, void** aScriptObject);
NS_IMETHOD SetScriptObject(void* aScriptObject);
protected:
PRInt32 mLength;
nsIDocument* mDocument;
void* mScriptObject;
};
nsDOMStyleSheetList::nsDOMStyleSheetList(nsIDocument *aDocument)
{
NS_INIT_REFCNT();
mLength = -1;
// Not reference counted to avoid circular references.
// The document will tell us when its going away.
mDocument = aDocument;
mDocument->AddObserver(this);
mScriptObject = nsnull;
}
nsDOMStyleSheetList::~nsDOMStyleSheetList()
{
if (nsnull != mDocument) {
mDocument->RemoveObserver(this);
}
mDocument = nsnull;
}
NS_IMPL_ADDREF(nsDOMStyleSheetList)
NS_IMPL_RELEASE(nsDOMStyleSheetList)
NS_INTERFACE_MAP_BEGIN(nsDOMStyleSheetList)
NS_INTERFACE_MAP_ENTRY(nsIDOMStyleSheetList)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectOwner)
NS_INTERFACE_MAP_ENTRY(nsIDocumentObserver)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMStyleSheetList)
NS_INTERFACE_MAP_END
NS_IMETHODIMP
nsDOMStyleSheetList::GetLength(PRUint32* aLength)
{
if (nsnull != mDocument) {
// XXX Find the number and then cache it. We'll use the
// observer notification to figure out if new ones have
// been added or removed.
if (-1 == mLength) {
PRUint32 count = 0;
PRInt32 i, imax = mDocument->GetNumberOfStyleSheets();
for (i = 0; i < imax; i++) {
nsCOMPtr<nsIStyleSheet> sheet(dont_AddRef(mDocument->GetStyleSheetAt(i)));
if (!sheet)
continue;
nsCOMPtr<nsIDOMStyleSheet> domss(do_QueryInterface(sheet));
if (domss) {
count++;
}
}
mLength = count;
}
*aLength = mLength;
}
else {
*aLength = 0;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetList::Item(PRUint32 aIndex, nsIDOMStyleSheet** aReturn)
{
*aReturn = nsnull;
if (nsnull != mDocument) {
PRUint32 count = 0;
PRInt32 i, imax = mDocument->GetNumberOfStyleSheets();
// XXX Not particularly efficient, but does anyone care?
for (i = 0; (i < imax) && (nsnull == *aReturn); i++) {
nsCOMPtr<nsIStyleSheet> sheet(do_QueryInterface(mDocument->GetStyleSheetAt(i)));
if (!sheet)
continue;
nsCOMPtr<nsIDOMStyleSheet> domss(do_QueryInterface(sheet));
if (domss) {
if (count++ == aIndex) {
*aReturn = domss;
NS_IF_ADDREF(*aReturn = domss);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetList::GetScriptObject(nsIScriptContext *aContext, void** aScriptObject)
{
nsresult res = NS_OK;
if (nsnull == mScriptObject) {
nsISupports *supports = (nsISupports *)(nsIDOMStyleSheetList *)this;
nsISupports *parent = (nsISupports *)mDocument;
// XXX Should be done through factory
res = NS_NewScriptStyleSheetList(aContext,
supports,
parent,
(void**)&mScriptObject);
}
*aScriptObject = mScriptObject;
return res;
}
NS_IMETHODIMP
nsDOMStyleSheetList::SetScriptObject(void* aScriptObject)
{
mScriptObject = aScriptObject;
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetList::StyleSheetAdded(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet)
{
if (-1 != mLength) {
nsCOMPtr<nsIDOMStyleSheet> domss(do_QueryInterface(aStyleSheet));
if (domss) {
mLength++;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetList::StyleSheetRemoved(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet)
{
if (-1 != mLength) {
nsCOMPtr<nsIDOMStyleSheet> domss(do_QueryInterface(aStyleSheet));
if (domss) {
mLength--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetList::DocumentWillBeDestroyed(nsIDocument *aDocument)
{
if (nsnull != mDocument) {
aDocument->RemoveObserver(this);
mDocument = nsnull;
}
return NS_OK;
}
// ==================================================================
// =
// ==================================================================
class nsDOMImplementation : public nsIDOMDOMImplementation,
public nsIScriptObjectOwner,
public nsIPrivateDOMImplementation
{
public:
nsDOMImplementation(nsIURI* aBaseURI = nsnull);
virtual ~nsDOMImplementation();
NS_DECL_ISUPPORTS
// nsIDOMDOMImplementation
NS_IMETHOD HasFeature(const nsString& aFeature,
const nsString& aVersion,
PRBool* aReturn);
NS_IMETHOD CreateDocumentType(const nsString& aQualifiedName,
const nsString& aPublicId,
const nsString& aSystemId,
nsIDOMDocumentType** aReturn);
NS_IMETHOD CreateDocument(const nsString& aNamespaceURI,
const nsString& aQualifiedName,
nsIDOMDocumentType* aDoctype,
nsIDOMDocument** aReturn);
// nsIScriptObjectOwner
NS_IMETHOD GetScriptObject(nsIScriptContext *aContext, void** aScriptObject);
NS_IMETHOD SetScriptObject(void *aScriptObject);
//nsIPrivateDOMImplementation
NS_IMETHOD Init(nsIURI* aBaseURI);
protected:
void *mScriptObject;
nsCOMPtr<nsIURI> mBaseURI;
};
NS_LAYOUT nsresult
NS_NewDOMImplementation(nsIDOMDOMImplementation** aInstancePtrResult)
{
nsDOMImplementation* domImpl = new nsDOMImplementation();
if (domImpl == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
return domImpl->QueryInterface(NS_GET_IID(nsIDOMDOMImplementation), (void**) aInstancePtrResult);
}
nsDOMImplementation::nsDOMImplementation(nsIURI* aBaseURI)
{
NS_INIT_REFCNT();
mScriptObject = nsnull;
mBaseURI = aBaseURI;
}
nsDOMImplementation::~nsDOMImplementation()
{
}
NS_IMPL_ISUPPORTS4(nsDOMImplementation, nsIDOMDOMImplementation, nsIPrivateDOMImplementation, nsIScriptObjectOwner, nsIDOMDOMImplementation)
NS_IMETHODIMP
nsDOMImplementation::HasFeature(const nsString& aFeature,
const nsString& aVersion,
PRBool* aReturn)
{
return nsGenericElement::InternalSupports(aFeature, aVersion, aReturn);
}
NS_IMETHODIMP
nsDOMImplementation::CreateDocumentType(const nsString& aQualifiedName,
const nsString& aPublicId,
const nsString& aSystemId,
nsIDOMDocumentType** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
return NS_NewDOMDocumentType(aReturn, aQualifiedName, nsnull, nsnull,
aPublicId, aSystemId, nsAutoString());
}
NS_IMETHODIMP
nsDOMImplementation::CreateDocument(const nsString& aNamespaceURI,
const nsString& aQualifiedName,
nsIDOMDocumentType* aDoctype,
nsIDOMDocument** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
nsresult rv = NS_OK;
*aReturn = nsnull;
NS_NewDOMDocument(aReturn, aNamespaceURI, aQualifiedName, aDoctype, mBaseURI);
return rv;
}
NS_IMETHODIMP
nsDOMImplementation::GetScriptObject(nsIScriptContext *aContext,
void** aScriptObject)
{
nsresult result = NS_OK;
if (nsnull == mScriptObject) {
NS_WITH_SERVICE(nsIDOMScriptObjectFactory, factory,
kDOMScriptObjectFactoryCID, &result);
if (NS_OK == result) {
nsIScriptGlobalObject *global = aContext->GetGlobalObject();
result = factory->NewScriptDOMImplementation(aContext, (nsISupports*)(nsIDOMDOMImplementation*)this,
global, &mScriptObject);
NS_RELEASE(global);
}
}
*aScriptObject = mScriptObject;
return result;
}
NS_IMETHODIMP
nsDOMImplementation::SetScriptObject(void *aScriptObject)
{
mScriptObject = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDOMImplementation::Init(nsIURI* aBaseURI)
{
mBaseURI = aBaseURI;
return NS_OK;
}
// ==================================================================
// =
// ==================================================================
MOZ_DECL_CTOR_COUNTER(nsDocumentChildNodes);
nsDocumentChildNodes::nsDocumentChildNodes(nsIDocument* aDocument)
{
MOZ_COUNT_CTOR(nsDocumentChildNodes);
// We don't reference count our document reference (to avoid circular
// references). We'll be told when the document goes away.
mDocument = aDocument;
}
nsDocumentChildNodes::~nsDocumentChildNodes()
{
MOZ_COUNT_DTOR(nsDocumentChildNodes);
}
NS_IMETHODIMP
nsDocumentChildNodes::GetLength(PRUint32* aLength)
{
if (nsnull != mDocument) {
PRInt32 count;
mDocument->GetChildCount(count);
*aLength = (PRUint32)count;
}
else {
*aLength = 0;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocumentChildNodes::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
{
nsresult result = NS_OK;
nsIContent* content = nsnull;
*aReturn = nsnull;
if (nsnull != mDocument) {
result = mDocument->ChildAt(aIndex, content);
if ((NS_OK == result) && (nsnull != content)) {
result = content->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)aReturn);
}
}
return result;
}
void
nsDocumentChildNodes::DropReference()
{
mDocument = nsnull;
}
// ==================================================================
// =
// ==================================================================
MOZ_DECL_CTOR_COUNTER(nsAnonymousContentList);
nsAnonymousContentList::nsAnonymousContentList(nsISupportsArray* aElements)
{
MOZ_COUNT_CTOR(nsAnonymousContentList);
// We don't reference count our Anonymous reference (to avoid circular
// references). We'll be told when the Anonymous goes away.
mElements = aElements;
NS_IF_ADDREF(mElements);
}
nsAnonymousContentList::~nsAnonymousContentList()
{
MOZ_COUNT_DTOR(nsAnonymousContentList);
NS_IF_RELEASE(mElements);
}
NS_IMETHODIMP
nsAnonymousContentList::GetLength(PRUint32* aLength)
{
NS_ASSERTION(aLength != nsnull, "null ptr");
if (! aLength)
return NS_ERROR_NULL_POINTER;
PRUint32 cnt;
nsresult rv = mElements->Count(&cnt);
if (NS_FAILED(rv)) return rv;
*aLength = cnt;
return NS_OK;
}
NS_IMETHODIMP
nsAnonymousContentList::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
{
PRUint32 cnt;
nsresult rv = mElements->Count(&cnt);
if (NS_FAILED(rv)) return rv;
if (aIndex >= (PRUint32) cnt)
return NS_ERROR_INVALID_ARG;
// Cast is okay because we're in a closed system.
*aReturn = (nsIDOMNode*) mElements->ElementAt(aIndex);
return NS_OK;
}
// ==================================================================
// =
// ==================================================================
nsDocument::nsDocument()
{
NS_INIT_REFCNT();
mArena = nsnull;
mDocumentTitle = nsnull;
mDocumentURL = nsnull;
mCharacterSet.AssignWithConversion("ISO-8859-1");
mParentDocument = nsnull;
mRootContent = nsnull;
mScriptObject = nsnull;
mListenerManager = nsnull;
mDisplaySelection = PR_FALSE;
mInDestructor = PR_FALSE;
mDOMStyleSheets = nsnull;
mNameSpaceManager = nsnull;
mHeaderData = nsnull;
mLineBreaker = nsnull;
mProlog = nsnull;
mEpilog = nsnull;
mChildNodes = nsnull;
mWordBreaker = nsnull;
mModCount = 0;
mFileSpec = nsnull;
mPrincipal = nsnull;
mNextContentID = NS_CONTENT_ID_COUNTER_BASE;
Init();/* XXX */
}
nsDocument::~nsDocument()
{
// XXX Inform any remaining observers that we are going away.
// Note that this currently contradicts the rule that all
// observers must hold on to live references to the document.
// This notification will occur only after the reference has
// been dropped.
mInDestructor = PR_TRUE;
PRInt32 index, count;
for (index = 0; index < mObservers.Count(); index++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers.ElementAt(index);
observer->DocumentWillBeDestroyed(this);
if (observer != (nsIDocumentObserver*)mObservers.ElementAt(index)) {
index--;
}
}
if (nsnull != mDocumentTitle) {
delete mDocumentTitle;
mDocumentTitle = nsnull;
}
NS_IF_RELEASE(mDocumentURL);
NS_IF_RELEASE(mPrincipal);
mDocumentLoadGroup = null_nsCOMPtr();
mParentDocument = nsnull;
// Delete references to sub-documents
index = mSubDocuments.Count();
while (--index >= 0) {
nsIDocument* subdoc = (nsIDocument*) mSubDocuments.ElementAt(index);
NS_RELEASE(subdoc);
}
NS_IF_RELEASE(mRootContent);
// Delete references to style sheets
index = mStyleSheets.Count();
while (--index >= 0) {
nsIStyleSheet* sheet = (nsIStyleSheet*) mStyleSheets.ElementAt(index);
sheet->SetOwningDocument(nsnull);
NS_RELEASE(sheet);
}
nsIContent* content;
if (nsnull != mProlog) {
count = mProlog->Count();
for (index = 0; index < count; index++) {
content = (nsIContent*)mProlog->ElementAt(index);
NS_RELEASE(content);
}
delete mProlog;
}
if (nsnull != mEpilog) {
count = mEpilog->Count();
for (index = 0; index < count; index++) {
content = (nsIContent*)mEpilog->ElementAt(index);
NS_RELEASE(content);
}
delete mEpilog;
}
if (nsnull != mChildNodes) {
mChildNodes->DropReference();
NS_RELEASE(mChildNodes);
}
NS_IF_RELEASE(mArena);
NS_IF_RELEASE(mListenerManager);
NS_IF_RELEASE(mDOMStyleSheets);
NS_IF_RELEASE(mNameSpaceManager);
if (nsnull != mHeaderData) {
delete mHeaderData;
mHeaderData = nsnull;
}
NS_IF_RELEASE(mLineBreaker);
NS_IF_RELEASE(mWordBreaker);
delete mFileSpec;
}
nsresult nsDocument::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(NS_GET_IID(nsIDocument))) {
nsIDocument* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMDocument))) {
nsIDOMDocument* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMNSDocument))) {
nsIDOMNSDocument* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMDocumentEvent))) {
nsIDOMDocumentEvent* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMDocumentStyle))) {
nsIDOMDocumentStyle* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMDocumentView))) {
nsIDOMDocumentView* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMDocumentXBL))) {
nsIDOMDocumentView* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIScriptObjectOwner))) {
nsIScriptObjectOwner* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIJSScriptObject))) {
nsIJSScriptObject* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIScriptObjectPrincipal))) {
nsIScriptObjectPrincipal* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMEventReceiver))) {
nsIDOMEventReceiver* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMEventTarget))) {
nsIDOMEventTarget* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDOMNode))) {
nsIDOMNode* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsIDiskDocument))) {
nsIDiskDocument* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsISupportsWeakReference))) {
nsISupportsWeakReference* tmp = this;
*aInstancePtr = (void*) tmp;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(NS_GET_IID(nsISupports))) {
nsIDocument* tmp = this;
nsISupports* tmp2 = tmp;
*aInstancePtr = (void*) tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMPL_ADDREF(nsDocument)
NS_IMPL_RELEASE(nsDocument)
nsresult nsDocument::Init()
{
if (mNameSpaceManager) {
return NS_ERROR_ALREADY_INITIALIZED;
}
nsresult rv = NS_NewHeapArena(&mArena, nsnull);
rv = NS_NewNameSpaceManager(&mNameSpaceManager);
NS_ENSURE_SUCCESS(rv, rv);
mNodeInfoManager = new nsNodeInfoManager();
NS_ENSURE_TRUE(mNodeInfoManager, NS_ERROR_OUT_OF_MEMORY);
mNodeInfoManager->Init(mNameSpaceManager);
return rv;
}
nsIArena* nsDocument::GetArena()
{
if (nsnull != mArena) {
NS_ADDREF(mArena);
}
return mArena;
}
nsresult
nsDocument::Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup)
{
nsresult rv = NS_OK;
if (nsnull != mDocumentTitle) {
delete mDocumentTitle;
mDocumentTitle = nsnull;
}
NS_IF_RELEASE(mDocumentURL);
NS_IF_RELEASE(mPrincipal);
mDocumentLoadGroup = null_nsCOMPtr();
// Delete references to sub-documents
PRInt32 index = mSubDocuments.Count();
while (--index >= 0) {
nsIDocument* subdoc = (nsIDocument*) mSubDocuments.ElementAt(index);
NS_RELEASE(subdoc);
}
nsIContent* content;
PRInt32 count;
if (nsnull != mProlog) {
count = mProlog->Count();
for (index = 0; index < count; index++) {
content = (nsIContent*)mProlog->ElementAt(index);
content->SetDocument(nsnull, PR_TRUE, PR_TRUE);
ContentRemoved(nsnull, content, index);
NS_RELEASE(content);
}
delete mProlog;
mProlog = nsnull;
}
if (nsnull != mRootContent) {
// Ensure that document is nsnull to allow validity checks on content
mRootContent->SetDocument(nsnull, PR_TRUE, PR_TRUE);
ContentRemoved(nsnull, mRootContent, 0);
NS_IF_RELEASE(mRootContent);
}
if (nsnull != mEpilog) {
count = mEpilog->Count();
for (index = 0; index < count; index++) {
content = (nsIContent*)mEpilog->ElementAt(index);
content->SetDocument(nsnull, PR_TRUE, PR_TRUE);
ContentRemoved(nsnull, content, index);
NS_RELEASE(content);
}
delete mEpilog;
mEpilog = nsnull;
}
// Delete references to style sheets
index = mStyleSheets.Count();
while (--index >= 0) {
nsIStyleSheet* sheet = (nsIStyleSheet*) mStyleSheets.ElementAt(index);
sheet->SetOwningDocument(nsnull);
PRInt32 pscount = mPresShells.Count();
PRInt32 psindex;
for (psindex = 0; psindex < pscount; psindex++) {
nsIPresShell* shell = (nsIPresShell*)mPresShells.ElementAt(psindex);
nsCOMPtr<nsIStyleSet> set;
if (NS_SUCCEEDED(shell->GetStyleSet(getter_AddRefs(set)))) {
if (set) {
set->RemoveDocStyleSheet(sheet);
}
}
}
// XXX Tell observers?
NS_RELEASE(sheet);
}
mStyleSheets.Clear();
NS_IF_RELEASE(mListenerManager);
NS_IF_RELEASE(mDOMStyleSheets);
NS_IF_RELEASE(mNameSpaceManager);
if (aChannel) {
(void)aChannel->GetOriginalURI(&mDocumentURL);
nsCOMPtr<nsISupports> owner;
aChannel->GetOwner(getter_AddRefs(owner));
if (owner)
owner->QueryInterface(NS_GET_IID(nsIPrincipal), (void**)&mPrincipal);
}
if (aLoadGroup) {
mDocumentLoadGroup = getter_AddRefs(NS_GetWeakReference(aLoadGroup));
// there was an assertion here that aLoadGroup was not null. This is no longer valid
// nsWebShell::SetDocument does not create a load group, and it works just fine.
}
if (NS_OK == rv) {
rv = NS_NewNameSpaceManager(&mNameSpaceManager);
}
return rv;
}
nsresult
nsDocument::SetDocumentURL(nsIURI* aURI)
{
NS_IF_RELEASE(mDocumentURL);
mDocumentURL = aURI;
NS_IF_ADDREF(mDocumentURL);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::StartDocumentLoad(const char* aCommand,
nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener **aDocListener,
PRBool aReset)
{
nsresult rv = NS_OK;
if (aReset)
rv = Reset(aChannel, aLoadGroup);
return rv;
}
NS_IMETHODIMP
nsDocument::StopDocumentLoad()
{
return NS_OK;
}
const nsString* nsDocument::GetDocumentTitle() const
{
return mDocumentTitle;
}
nsIURI* nsDocument::GetDocumentURL() const
{
nsIURI* url = mDocumentURL;
NS_IF_ADDREF(url);
return url;
}
NS_IMETHODIMP
nsDocument::GetPrincipal(nsIPrincipal **aPrincipal)
{
if (!mPrincipal) {
nsresult rv;
NS_WITH_SERVICE(nsIScriptSecurityManager, securityManager,
NS_SCRIPTSECURITYMANAGER_PROGID, &rv);
if (NS_FAILED(rv))
return rv;
if (NS_FAILED(rv = securityManager->GetCodebasePrincipal(mDocumentURL,
&mPrincipal)))
return rv;
}
if(aPrincipal)
{
*aPrincipal = mPrincipal;
NS_ADDREF(*aPrincipal);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::AddPrincipal(nsIPrincipal *aNewPrincipal)
{
nsresult rv;
if (!mPrincipal)
GetPrincipal(nsnull);
nsCOMPtr<nsIAggregatePrincipal> agg =
do_QueryInterface(mPrincipal, &rv);
if (NS_SUCCEEDED(rv))
{
rv = agg->Intersect(aNewPrincipal);
if (NS_FAILED(rv)) return rv;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetContentType(nsString& aContentType) const
{
// Must be implemented by derived class.
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetDocumentLoadGroup(nsILoadGroup **aGroup) const
{
nsCOMPtr<nsILoadGroup> group = do_QueryReferent(mDocumentLoadGroup);
*aGroup = group;
NS_IF_ADDREF(*aGroup);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetBaseURL(nsIURI*& aURL) const
{
aURL = mDocumentURL;
NS_IF_ADDREF(aURL);
return NS_OK;
}
NS_IMETHODIMP nsDocument::GetDocumentCharacterSet(nsString& oCharSetID)
{
oCharSetID = mCharacterSet;
return NS_OK;
}
NS_IMETHODIMP nsDocument::SetDocumentCharacterSet(const nsString& aCharSetID)
{
if (mCharacterSet != aCharSetID) {
mCharacterSet = aCharSetID;
nsAutoString charSetTopic;
charSetTopic.AssignWithConversion("charset");
PRInt32 n = mCharSetObservers.Count();
for (PRInt32 i = 0; i < n; i++) {
nsIObserver* observer = (nsIObserver*) mCharSetObservers.ElementAt(i);
observer->Observe((nsIDocument*) this, charSetTopic.GetUnicode(),
aCharSetID.GetUnicode());
}
}
return NS_OK;
}
NS_IMETHODIMP nsDocument::AddCharSetObserver(nsIObserver* aObserver)
{
NS_ENSURE_ARG_POINTER(aObserver);
NS_ENSURE_TRUE(mCharSetObservers.AppendElement(aObserver), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocument::RemoveCharSetObserver(nsIObserver* aObserver)
{
NS_ENSURE_ARG_POINTER(aObserver);
NS_ENSURE_TRUE(mCharSetObservers.RemoveElement(aObserver), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP nsDocument::GetLineBreaker(nsILineBreaker** aResult)
{
if(nsnull == mLineBreaker ) {
// no line breaker, find a default one
nsILineBreakerFactory *lf;
nsresult result;
result = nsServiceManager::GetService(kLWBrkCID,
NS_GET_IID(nsILineBreakerFactory),
(nsISupports **)&lf);
if (NS_SUCCEEDED(result)) {
nsILineBreaker *lb = nsnull ;
nsAutoString lbarg;
result = lf->GetBreaker(lbarg, &lb);
if(NS_SUCCEEDED(result)) {
mLineBreaker = lb;
}
result = nsServiceManager::ReleaseService(kLWBrkCID, lf);
}
}
*aResult = mLineBreaker;
NS_IF_ADDREF(mLineBreaker);
return NS_OK; // XXX we should do error handling here
}
NS_IMETHODIMP nsDocument::SetLineBreaker(nsILineBreaker* aLineBreaker)
{
NS_IF_RELEASE(mLineBreaker);
mLineBreaker = aLineBreaker;
NS_IF_ADDREF(mLineBreaker);
return NS_OK;
}
NS_IMETHODIMP nsDocument::GetWordBreaker(nsIWordBreaker** aResult)
{
if(nsnull == mWordBreaker ) {
// no line breaker, find a default one
nsIWordBreakerFactory *lf;
nsresult result;
result = nsServiceManager::GetService(kLWBrkCID,
NS_GET_IID(nsIWordBreakerFactory),
(nsISupports **)&lf);
if (NS_SUCCEEDED(result)) {
nsIWordBreaker *lb = nsnull ;
nsAutoString lbarg;
result = lf->GetBreaker(lbarg, &lb);
if(NS_SUCCEEDED(result)) {
mWordBreaker = lb;
}
result = nsServiceManager::ReleaseService(kLWBrkCID, lf);
}
}
*aResult = mWordBreaker;
NS_IF_ADDREF(mWordBreaker);
return NS_OK; // XXX we should do error handling here
}
NS_IMETHODIMP nsDocument::SetWordBreaker(nsIWordBreaker* aWordBreaker)
{
NS_IF_RELEASE(mWordBreaker);
mWordBreaker = aWordBreaker;
NS_IF_ADDREF(mWordBreaker);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetHeaderData(nsIAtom* aHeaderField, nsString& aData) const
{
aData.Truncate();
const nsDocHeaderData* data = mHeaderData;
while (nsnull != data) {
if (data->mField == aHeaderField) {
aData = data->mData;
break;
}
data = data->mNext;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetHeaderData(nsIAtom* aHeaderField, const nsString& aData)
{
if (nsnull != aHeaderField) {
if (nsnull == mHeaderData) {
if (0 < aData.Length()) { // don't bother storing empty string
mHeaderData = new nsDocHeaderData(aHeaderField, aData);
}
}
else {
nsDocHeaderData* data = mHeaderData;
nsDocHeaderData** lastPtr = &mHeaderData;
do { // look for existing and replace
if (data->mField == aHeaderField) {
if (0 < aData.Length()) {
data->mData.Assign(aData);
}
else { // don't store empty string
(*lastPtr)->mNext = data->mNext;
data->mNext = nsnull;
delete data;
}
return NS_OK;
}
lastPtr = &(data->mNext);
data = data->mNext;
} while (nsnull != data);
// didn't find, append
if (0 < aData.Length()) {
*lastPtr = new nsDocHeaderData(aHeaderField, aData);
}
}
return NS_OK;
}
return NS_ERROR_NULL_POINTER;
}
#if 0
// XXX Temp hack: moved to nsMarkupDocument
NS_IMETHODIMP
nsDocument::CreateShell(nsIPresContext* aContext,
nsIViewManager* aViewManager,
nsIStyleSet* aStyleSet,
nsIPresShell** aInstancePtrResult)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIPresShell* shell;
nsresult rv = NS_NewPresShell(&shell);
if (NS_OK != rv) {
return rv;
}
if (NS_OK != shell->Init(this, aContext, aViewManager, aStyleSet)) {
NS_RELEASE(shell);
return rv;
}
// Note: we don't hold a ref to the shell (it holds a ref to us)
mPresShells.AppendElement(shell);
*aInstancePtrResult = shell;
return NS_OK;
}
#endif
PRBool nsDocument::DeleteShell(nsIPresShell* aShell)
{
return mPresShells.RemoveElement(aShell);
}
PRInt32 nsDocument::GetNumberOfShells()
{
return mPresShells.Count();
}
nsIPresShell* nsDocument::GetShellAt(PRInt32 aIndex)
{
nsIPresShell* shell = (nsIPresShell*) mPresShells.ElementAt(aIndex);
if (nsnull != shell) {
NS_ADDREF(shell);
}
return shell;
}
nsIDocument* nsDocument::GetParentDocument()
{
if (nsnull != mParentDocument) {
NS_ADDREF(mParentDocument);
}
return mParentDocument;
}
/**
* Note that we do *not* AddRef our parent because that would
* create a circular reference.
*/
void nsDocument::SetParentDocument(nsIDocument* aParent)
{
mParentDocument = aParent;
}
void nsDocument::AddSubDocument(nsIDocument* aSubDoc)
{
NS_ADDREF(aSubDoc);
mSubDocuments.AppendElement(aSubDoc);
}
PRInt32 nsDocument::GetNumberOfSubDocuments()
{
return mSubDocuments.Count();
}
nsIDocument* nsDocument::GetSubDocumentAt(PRInt32 aIndex)
{
nsIDocument* doc = (nsIDocument*) mSubDocuments.ElementAt(aIndex);
if (nsnull != doc) {
NS_ADDREF(doc);
}
return doc;
}
nsIContent* nsDocument::GetRootContent()
{
if (nsnull != mRootContent) {
NS_ADDREF(mRootContent);
}
return mRootContent;
}
void nsDocument::SetRootContent(nsIContent* aRoot)
{
NS_IF_RELEASE(mRootContent);
if (nsnull != aRoot) {
mRootContent = aRoot;
NS_ADDREF(aRoot);
}
}
NS_IMETHODIMP
nsDocument::AppendToProlog(nsIContent* aContent)
{
if (nsnull == mProlog) {
mProlog = new nsVoidArray();
}
mProlog->AppendElement((void *)aContent);
NS_ADDREF(aContent);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::AppendToEpilog(nsIContent* aContent)
{
if (nsnull == mEpilog) {
mEpilog = new nsVoidArray();
}
mEpilog->AppendElement((void *)aContent);
NS_ADDREF(aContent);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ChildAt(PRInt32 aIndex, nsIContent*& aResult) const
{
nsIContent* content = nsnull;
PRInt32 prolog = 0;
if (nsnull != mProlog) {
prolog = mProlog->Count();
if (aIndex < prolog) {
// It's in the prolog
content = (nsIContent*)mProlog->ElementAt(aIndex);
}
}
if ((aIndex == prolog) && mRootContent) {
// It's the document element
content = mRootContent;
}
else {
prolog += mRootContent?1:0;
if ((aIndex >= prolog) && (nsnull != mEpilog)) {
// It's in the epilog
content = (nsIContent*)mEpilog->ElementAt(aIndex-prolog);
}
}
NS_IF_ADDREF(content);
aResult = content;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::IndexOf(nsIContent* aPossibleChild, PRInt32& aIndex) const
{
PRInt32 index = -1;
PRInt32 prolog = 0;
if (nsnull != mProlog) {
index = mProlog->IndexOf(aPossibleChild);
prolog = mProlog->Count();
}
if (-1 == index) {
if (aPossibleChild == mRootContent) {
index = prolog;
}
else if (nsnull != mEpilog) {
index = mEpilog->IndexOf(aPossibleChild);
if (-1 != index) {
index += (prolog+1);
}
}
}
aIndex = index;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetChildCount(PRInt32& aCount)
{
aCount = 0;
if (nsnull != mRootContent) {
aCount++;
}
if (nsnull != mProlog) {
aCount += mProlog->Count();
}
if (nsnull != mEpilog) {
aCount += mEpilog->Count();
}
return NS_OK;
}
PRInt32 nsDocument::GetNumberOfStyleSheets()
{
return mStyleSheets.Count();
}
nsIStyleSheet* nsDocument::GetStyleSheetAt(PRInt32 aIndex)
{
nsIStyleSheet* sheet = (nsIStyleSheet*)mStyleSheets.ElementAt(aIndex);
NS_IF_ADDREF(sheet);
return sheet;
}
PRInt32 nsDocument::GetIndexOfStyleSheet(nsIStyleSheet* aSheet)
{
return mStyleSheets.IndexOf(aSheet);
}
void nsDocument::InternalAddStyleSheet(nsIStyleSheet* aSheet) // subclass hook for sheet ordering
{
mStyleSheets.AppendElement(aSheet);
}
void nsDocument::AddStyleSheetToStyleSets(nsIStyleSheet* aSheet)
{
PRInt32 count = mPresShells.Count();
PRInt32 index;
for (index = 0; index < count; index++) {
nsIPresShell* shell = (nsIPresShell*)mPresShells.ElementAt(index);
nsCOMPtr<nsIStyleSet> set;
if (NS_SUCCEEDED(shell->GetStyleSet(getter_AddRefs(set)))) {
if (set) {
set->AddDocStyleSheet(aSheet, this);
}
}
}
}
void nsDocument::AddStyleSheet(nsIStyleSheet* aSheet)
{
NS_PRECONDITION(nsnull != aSheet, "null arg");
InternalAddStyleSheet(aSheet);
NS_ADDREF(aSheet);
aSheet->SetOwningDocument(this);
PRBool enabled = PR_TRUE;
aSheet->GetEnabled(enabled);
if (enabled) {
AddStyleSheetToStyleSets(aSheet);
// XXX should observers be notified for disabled sheets??? I think not, but I could be wrong
for (PRInt32 index = 0; index < mObservers.Count(); index++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers.ElementAt(index);
observer->StyleSheetAdded(this, aSheet);
if (observer != (nsIDocumentObserver*)mObservers.ElementAt(index)) {
index--;
}
}
}
}
void nsDocument::RemoveStyleSheetFromStyleSets(nsIStyleSheet* aSheet)
{
PRInt32 count = mPresShells.Count();
PRInt32 index;
for (index = 0; index < count; index++) {
nsIPresShell* shell = (nsIPresShell*)mPresShells.ElementAt(index);
nsCOMPtr<nsIStyleSet> set;
if (NS_SUCCEEDED(shell->GetStyleSet(getter_AddRefs(set)))) {
if (set) {
set->RemoveDocStyleSheet(aSheet);
}
}
}
}
void nsDocument::RemoveStyleSheet(nsIStyleSheet* aSheet)
{
NS_PRECONDITION(nsnull != aSheet, "null arg");
mStyleSheets.RemoveElement(aSheet);
PRBool enabled = PR_TRUE;
aSheet->GetEnabled(enabled);
if (enabled) {
RemoveStyleSheetFromStyleSets(aSheet);
// XXX should observers be notified for disabled sheets??? I think not, but I could be wrong
for (PRInt32 index = 0; index < mObservers.Count(); index++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers.ElementAt(index);
observer->StyleSheetRemoved(this, aSheet);
if (observer != (nsIDocumentObserver*)mObservers.ElementAt(index)) {
index--;
}
}
}
aSheet->SetOwningDocument(nsnull);
NS_RELEASE(aSheet);
}
NS_IMETHODIMP
nsDocument::UpdateStyleSheets(nsISupportsArray* aOldSheets, nsISupportsArray* aNewSheets)
{
PRUint32 oldCount;
aOldSheets->Count(&oldCount);
nsCOMPtr<nsIStyleSheet> sheet;
PRUint32 i;
for (i = 0; i < oldCount; i++) {
nsCOMPtr<nsISupports> supp;
aOldSheets->GetElementAt(i, getter_AddRefs(supp));
sheet = do_QueryInterface(supp);
if (sheet) {
mStyleSheets.RemoveElement(sheet);
PRBool enabled = PR_TRUE;
sheet->GetEnabled(enabled);
if (enabled) {
RemoveStyleSheetFromStyleSets(sheet);
}
sheet->SetOwningDocument(nsnull);
nsIStyleSheet* sheetPtr = sheet.get();
NS_RELEASE(sheetPtr);
}
}
PRUint32 newCount;
aNewSheets->Count(&newCount);
for (i = 0; i < newCount; i++) {
nsCOMPtr<nsISupports> supp;
aNewSheets->GetElementAt(i, getter_AddRefs(supp));
sheet = do_QueryInterface(supp);
if (sheet) {
InternalAddStyleSheet(sheet);
nsIStyleSheet* sheetPtr = sheet;
NS_ADDREF(sheetPtr);
sheet->SetOwningDocument(this);
PRBool enabled = PR_TRUE;
sheet->GetEnabled(enabled);
if (enabled) {
AddStyleSheetToStyleSets(sheet);
sheet->SetOwningDocument(nsnull);
}
}
}
for (PRInt32 index = 0; index < mObservers.Count(); index++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers.ElementAt(index);
observer->StyleSheetRemoved(this, sheet);
if (observer != (nsIDocumentObserver*)mObservers.ElementAt(index)) {
index--;
}
}
return NS_OK;
}
void
nsDocument::InternalInsertStyleSheetAt(nsIStyleSheet* aSheet, PRInt32 aIndex)
{ // subclass hook for sheet ordering
mStyleSheets.InsertElementAt(aSheet, aIndex);
}
NS_IMETHODIMP
nsDocument::InsertStyleSheetAt(nsIStyleSheet* aSheet, PRInt32 aIndex, PRBool aNotify)
{
NS_PRECONDITION(nsnull != aSheet, "null ptr");
InternalInsertStyleSheetAt(aSheet, aIndex);
NS_ADDREF(aSheet);
aSheet->SetOwningDocument(this);
PRBool enabled = PR_TRUE;
aSheet->GetEnabled(enabled);
PRInt32 count;
PRInt32 index;
if (enabled) {
count = mPresShells.Count();
for (index = 0; index < count; index++) {
nsIPresShell* shell = (nsIPresShell*)mPresShells.ElementAt(index);
nsCOMPtr<nsIStyleSet> set;
shell->GetStyleSet(getter_AddRefs(set));
if (set) {
set->AddDocStyleSheet(aSheet, this);
}
}
}
if (aNotify) { // notify here even if disabled, there may have been others that weren't notified
for (index = 0; index < mObservers.Count(); index++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers.ElementAt(index);
observer->StyleSheetAdded(this, aSheet);
if (observer != (nsIDocumentObserver*)mObservers.ElementAt(index)) {
index--;
}
}
}
return NS_OK;
}
void nsDocument::SetStyleSheetDisabledState(nsIStyleSheet* aSheet,
PRBool aDisabled)
{
NS_PRECONDITION(nsnull != aSheet, "null arg");
PRInt32 index = mStyleSheets.IndexOf((void *)aSheet);
PRInt32 count;
// If we're actually in the document style sheet list
if (-1 != index) {
count = mPresShells.Count();
for (index = 0; index < count; index++) {
nsIPresShell* shell = (nsIPresShell*)mPresShells.ElementAt(index);
nsCOMPtr<nsIStyleSet> set;
if (NS_SUCCEEDED(shell->GetStyleSet(getter_AddRefs(set)))) {
if (set) {
if (aDisabled) {
set->RemoveDocStyleSheet(aSheet);
}
else {
set->AddDocStyleSheet(aSheet, this);
}
}
}
}
}
for (index = 0; index < mObservers.Count(); index++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers.ElementAt(index);
observer->StyleSheetDisabledStateChanged(this, aSheet, aDisabled);
if (observer != (nsIDocumentObserver*)mObservers.ElementAt(index)) {
index--;
}
}
}
NS_IMETHODIMP
nsDocument::GetScriptGlobalObject(nsIScriptGlobalObject** aScriptGlobalObject)
{
NS_ENSURE_ARG_POINTER(aScriptGlobalObject);
*aScriptGlobalObject = mScriptGlobalObject;
NS_IF_ADDREF(*aScriptGlobalObject);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetScriptGlobalObject(nsIScriptGlobalObject *aScriptGlobalObject)
{
// XXX HACK ALERT! If the script context owner is null, the document
// will soon be going away. So tell our content that to lose its
// reference to the document. This has to be done before we
// actually set the script context owner to null so that the
// content elements can remove references to their script objects.
if (!aScriptGlobalObject) {
PRInt32 count, index;
nsIContent *content;
if (mProlog) {
count = mProlog->Count();
for (index = 0; index < count; index++) {
content = (nsIContent*)mProlog->ElementAt(index);
content->SetDocument(nsnull, PR_TRUE, PR_TRUE);
}
}
if (mRootContent) {
mRootContent->SetDocument(nsnull, PR_TRUE, PR_TRUE);
}
if (mEpilog) {
count = mEpilog->Count();
for (index = 0; index < count; index++) {
content = (nsIContent*)mEpilog->ElementAt(index);
content->SetDocument(nsnull, PR_TRUE, PR_TRUE);
}
}
// XXX You thought that was a hack? Let's unroot the scrollbars
// around the root element. The frame that created the anonymous
// content for them isn't the primary frame for any element, so
// we do it here. This tries not to have too much knowledge of
// how scrollbars are implemented today by actually checking all
// the frames up to the top.
nsCOMPtr<nsIPresShell> shell( dont_AddRef(GetShellAt(0)) );
if (shell) {
nsIFrame *kidFrame = nsnull;
shell->GetPrimaryFrameFor(mRootContent, &kidFrame);
while (kidFrame) {
// XXX Don't release a frame!
nsCOMPtr<nsIAnonymousContentCreator> acc( do_QueryInterface(kidFrame) );
if (acc) {
acc->SetDocumentForAnonymousContent(nsnull, PR_TRUE, PR_TRUE);
}
nsIFrame *parentFrame;
kidFrame->GetParent(&parentFrame);
kidFrame = parentFrame;
}
}
}
mScriptGlobalObject = aScriptGlobalObject;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetNameSpaceManager(nsINameSpaceManager*& aManager)
{
aManager = mNameSpaceManager;
NS_IF_ADDREF(aManager);
return NS_OK;
}
// Note: We don't hold a reference to the document observer; we assume
// that it has a live reference to the document.
void nsDocument::AddObserver(nsIDocumentObserver* aObserver)
{
// XXX Make sure the observer isn't already in the list
if (mObservers.IndexOf(aObserver) == -1) {
mObservers.AppendElement(aObserver);
}
}
PRBool nsDocument::RemoveObserver(nsIDocumentObserver* aObserver)
{
// If we're in the process of destroying the document (and we're
// informing the observers of the destruction), don't remove the
// observers from the list. This is not a big deal, since we
// don't hold a live reference to the observers.
if (!mInDestructor)
return mObservers.RemoveElement(aObserver);
else
return (mObservers.IndexOf(aObserver) != -1);
}
NS_IMETHODIMP
nsDocument::BeginUpdate()
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*) mObservers[i];
observer->BeginUpdate(this);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::EndUpdate()
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*) mObservers[i];
observer->EndUpdate(this);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::BeginLoad()
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*) mObservers[i];
observer->BeginLoad(this);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::EndLoad()
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*) mObservers[i];
observer->EndLoad(this);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ContentChanged(nsIContent* aContent,
nsISupports* aSubContent)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->ContentChanged(this, aContent, aSubContent);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ContentStatesChanged(nsIContent* aContent1,
nsIContent* aContent2)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->ContentStatesChanged(this, aContent1, aContent2);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ContentAppended(nsIContent* aContainer,
PRInt32 aNewIndexInContainer)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->ContentAppended(this, aContainer, aNewIndexInContainer);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ContentInserted(nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->ContentInserted(this, aContainer, aChild, aIndexInContainer);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ContentReplaced(nsIContent* aContainer,
nsIContent* aOldChild,
nsIContent* aNewChild,
PRInt32 aIndexInContainer)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->ContentReplaced(this, aContainer, aOldChild, aNewChild,
aIndexInContainer);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ContentRemoved(nsIContent* aContainer,
nsIContent* aChild,
PRInt32 aIndexInContainer)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->ContentRemoved(this, aContainer,
aChild, aIndexInContainer);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::AttributeChanged(nsIContent* aChild,
PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aHint)
{
PRInt32 i;
nsresult result = NS_OK;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
nsresult rv = observer->AttributeChanged(this, aChild, aNameSpaceID, aAttribute, aHint);
if (NS_FAILED(rv) && NS_SUCCEEDED(result))
result = rv;
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
}
return result;
}
NS_IMETHODIMP
nsDocument::StyleRuleChanged(nsIStyleSheet* aStyleSheet, nsIStyleRule* aStyleRule,
PRInt32 aHint)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->BeginUpdate(this);
observer->StyleRuleChanged(this, aStyleSheet, aStyleRule, aHint);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
else {
observer->EndUpdate(this);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::StyleRuleAdded(nsIStyleSheet* aStyleSheet, nsIStyleRule* aStyleRule)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->BeginUpdate(this);
observer->StyleRuleAdded(this, aStyleSheet, aStyleRule);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
else {
observer->EndUpdate(this);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::StyleRuleRemoved(nsIStyleSheet* aStyleSheet, nsIStyleRule* aStyleRule)
{
PRInt32 i;
// Get new value of count for every iteration in case
// observers remove themselves during the loop.
for (i = 0; i < mObservers.Count(); i++) {
nsIDocumentObserver* observer = (nsIDocumentObserver*)mObservers[i];
observer->BeginUpdate(this);
observer->StyleRuleRemoved(this, aStyleSheet, aStyleRule);
// Make sure that the observer didn't remove itself during the
// notification. If it did, update our index and count.
if (observer != (nsIDocumentObserver*)mObservers[i]) {
i--;
}
else {
observer->EndUpdate(this);
}
}
return NS_OK;
}
nsresult nsDocument::GetScriptObject(nsIScriptContext *aContext, void** aScriptObject)
{
nsresult res = NS_OK;
nsCOMPtr<nsIScriptGlobalObject> global;
if (nsnull == mScriptObject) {
// XXX We make the (possibly erroneous) assumption that the first
// presentation shell represents the "primary view" of the document
// and that the JS parent chain should incorporate just that view.
// This is done for lack of a better model when we have multiple
// views.
nsIPresShell* shell = (nsIPresShell*) mPresShells.ElementAt(0);
if (shell) {
nsCOMPtr<nsIPresContext> cx;
shell->GetPresContext(getter_AddRefs(cx));
nsCOMPtr<nsISupports> container;
res = cx->GetContainer(getter_AddRefs(container));
if (NS_SUCCEEDED(res) && container) {
global = do_GetInterface(container);
}
}
// XXX If we can't find a view, parent to the calling context's
// global object. This may not be right either, but we need
// something.
else {
global = getter_AddRefs(aContext->GetGlobalObject());
}
if (NS_SUCCEEDED(res)) {
res = NS_NewScriptDocument(aContext,
(nsISupports *)(nsIDOMDocument *)this,
(nsISupports *)global,
(void**)&mScriptObject);
}
}
*aScriptObject = mScriptObject;
return res;
}
nsresult nsDocument::SetScriptObject(void *aScriptObject)
{
mScriptObject = aScriptObject;
return NS_OK;
}
//
// nsIDOMDocument interface
//
NS_IMETHODIMP
nsDocument::GetDoctype(nsIDOMDocumentType** aDoctype)
{
NS_ENSURE_ARG_POINTER(aDoctype);
*aDoctype = nsnull;
if (mProlog) {
PRInt32 i, count = mProlog->Count();
for (i = 0; i < count; i++) {
nsIContent* content = (nsIContent *)mProlog->ElementAt(i);
if (!content)
continue;
nsCOMPtr<nsIDOMNode> node(do_QueryInterface(content));
if (node) {
PRUint16 nodeType;
node->GetNodeType(&nodeType);
if (nodeType == nsIDOMNode::DOCUMENT_TYPE_NODE) {
return node->QueryInterface(NS_GET_IID(nsIDOMDocumentType),
(void **)aDoctype);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetImplementation(nsIDOMDOMImplementation** aImplementation)
{
// For now, create a new implementation every time. This shouldn't
// be a high bandwidth operation
nsDOMImplementation* impl = new nsDOMImplementation(mDocumentURL);
if (nsnull == impl) {
return NS_ERROR_OUT_OF_MEMORY;
}
return impl->QueryInterface(NS_GET_IID(nsIDOMDOMImplementation), (void**)aImplementation);
}
NS_IMETHODIMP
nsDocument::GetDocumentElement(nsIDOMElement** aDocumentElement)
{
if (nsnull == aDocumentElement) {
return NS_ERROR_NULL_POINTER;
}
nsresult res = NS_OK;
if (nsnull != mRootContent) {
res = mRootContent->QueryInterface(NS_GET_IID(nsIDOMElement), (void**)aDocumentElement);
NS_ASSERTION(NS_OK == res, "Must be a DOM Element");
} else {
*aDocumentElement = nsnull;
}
return res;
}
NS_IMETHODIMP
nsDocument::CreateElement(const nsString& aTagName,
nsIDOMElement** aReturn)
{
// Should be implemented by subclass
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::CreateTextNode(const nsString& aData, nsIDOMText** aReturn)
{
nsIContent* text = nsnull;
nsresult rv = NS_NewTextNode(&text);
if (NS_OK == rv) {
rv = text->QueryInterface(NS_GET_IID(nsIDOMText), (void**)aReturn);
(*aReturn)->AppendData(aData);
NS_RELEASE(text);
}
return rv;
}
NS_IMETHODIMP
nsDocument::CreateDocumentFragment(nsIDOMDocumentFragment** aReturn)
{
return NS_NewDocumentFragment(aReturn, this);
}
NS_IMETHODIMP
nsDocument::CreateComment(const nsString& aData, nsIDOMComment** aReturn)
{
nsIContent* comment = nsnull;
nsresult rv = NS_NewCommentNode(&comment);
if (NS_OK == rv) {
rv = comment->QueryInterface(NS_GET_IID(nsIDOMComment), (void**)aReturn);
(*aReturn)->AppendData(aData);
NS_RELEASE(comment);
}
return rv;
}
NS_IMETHODIMP
nsDocument::CreateCDATASection(const nsString& aData, nsIDOMCDATASection** aReturn)
{
// Should be implemented by subclass
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::CreateProcessingInstruction(const nsString& aTarget,
const nsString& aData,
nsIDOMProcessingInstruction** aReturn)
{
// Should be implemented by subclass
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::CreateAttribute(const nsString& aName,
nsIDOMAttr** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
NS_ENSURE_TRUE(mNodeInfoManager, NS_ERROR_NOT_INITIALIZED);
nsAutoString value;
nsDOMAttribute* attribute;
nsCOMPtr<nsINodeInfo> nodeInfo;
nsresult rv = mNodeInfoManager->GetNodeInfo(aName, nsnull, kNameSpaceID_None,
*getter_AddRefs(nodeInfo));
NS_ENSURE_SUCCESS(rv, rv);
attribute = new nsDOMAttribute(nsnull, nodeInfo, value);
NS_ENSURE_TRUE(attribute, NS_ERROR_OUT_OF_MEMORY);
return attribute->QueryInterface(NS_GET_IID(nsIDOMAttr), (void**)aReturn);
}
NS_IMETHODIMP
nsDocument::CreateEntityReference(const nsString& aName,
nsIDOMEntityReference** aReturn)
{
// Should be implemented by subclass
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetElementsByTagName(const nsString& aTagname,
nsIDOMNodeList** aReturn)
{
nsCOMPtr<nsIAtom> nameAtom = dont_AddRef(NS_NewAtom(aTagname));
nsContentList* list = new nsContentList(this, nameAtom, kNameSpaceID_Unknown);
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
return list->QueryInterface(NS_GET_IID(nsIDOMNodeList), (void **)aReturn);
}
NS_IMETHODIMP
nsDocument::GetElementsByTagNameNS(const nsString& aNamespaceURI,
const nsString& aLocalName,
nsIDOMNodeList** aReturn)
{
nsCOMPtr<nsIAtom> nameAtom;
PRInt32 nameSpaceId = kNameSpaceID_Unknown;
nameAtom = dont_AddRef(NS_NewAtom(aLocalName));
nsContentList* list = nsnull;
if (!aNamespaceURI.EqualsWithConversion("*")) {
mNameSpaceManager->GetNameSpaceID(aNamespaceURI, nameSpaceId);
if (nameSpaceId == kNameSpaceID_Unknown) {
// Unkonwn namespace means no matches, we create an empty list...
list = new nsContentList(this, nsnull, kNameSpaceID_None);
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
}
}
if (!list) {
list = new nsContentList(this, nameAtom, nameSpaceId);
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
}
return list->QueryInterface(NS_GET_IID(nsIDOMNodeList), (void **)aReturn);
}
NS_IMETHODIMP
nsDocument::GetStyleSheets(nsIDOMStyleSheetList** aStyleSheets)
{
if (nsnull == mDOMStyleSheets) {
mDOMStyleSheets = new nsDOMStyleSheetList(this);
if (nsnull == mDOMStyleSheets) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(mDOMStyleSheets);
}
*aStyleSheets = mDOMStyleSheets;
NS_ADDREF(mDOMStyleSheets);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetCharacterSet(nsString& aCharacterSet)
{
return GetDocumentCharacterSet(aCharacterSet);
}
NS_IMETHODIMP
nsDocument::CreateElementWithNameSpace(const nsString& aTagName,
const nsString& aNameSpace,
nsIDOMElement** aReturn)
{
*aReturn = nsnull;
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::ImportNode(nsIDOMNode* aImportedNode,
PRBool aDeep,
nsIDOMNode** aReturn)
{
NS_ENSURE_ARG(aImportedNode);
NS_ENSURE_ARG_POINTER(aReturn);
return aImportedNode->CloneNode(aDeep, aReturn);
}
NS_IMETHODIMP
nsDocument::AddBinding(nsIDOMElement* aContent, const nsString& aURL)
{
nsCOMPtr<nsIBindingManager> bm;
GetBindingManager(getter_AddRefs(bm));
nsCOMPtr<nsIContent> content(do_QueryInterface(aContent));
return bm->AddLayeredBinding(content, aURL);
}
NS_IMETHODIMP
nsDocument::RemoveBinding(nsIDOMElement* aContent, const nsString& aURL)
{
if (mBindingManager) {
nsCOMPtr<nsIContent> content(do_QueryInterface(aContent));
return mBindingManager->RemoveLayeredBinding(content, aURL);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDocument::LoadBindingDocument(const nsString& aURL)
{
if (mBindingManager)
return mBindingManager->LoadBindingDocument(aURL);
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDocument::GetAnonymousNodes(nsIDOMElement* aElement, nsIDOMNodeList** aResult)
{
nsresult rv;
*aResult = nsnull;
// Use the XBL service to get a content list.
NS_WITH_SERVICE(nsIXBLService, xblService, "component://netscape/xbl", &rv);
if (!xblService)
return rv;
// Retrieve the anonymous content that we should build.
nsCOMPtr<nsISupportsArray> anonymousItems;
nsCOMPtr<nsIContent> dummyElt;
nsCOMPtr<nsIContent> element(do_QueryInterface(aElement));
if (!element)
return rv;
PRBool dummy;
xblService->GetContentList(element, getter_AddRefs(anonymousItems),
getter_AddRefs(dummyElt), &dummy);
if (!anonymousItems)
return NS_OK;
nsCOMPtr<nsISupportsArray> elements;
NS_NewISupportsArray(getter_AddRefs(elements));
PRUint32 count = 0;
anonymousItems->Count(&count);
for (PRUint32 i=0; i < count; i++)
{
// get our child's content and set its parent to our content
nsCOMPtr<nsISupports> node;
anonymousItems->GetElementAt(i,getter_AddRefs(node));
nsCOMPtr<nsIDOMNode> content(do_QueryInterface(node));
if (content)
elements->AppendElement(content);
}
nsAnonymousContentList* elts = new nsAnonymousContentList(elements);
NS_IF_ADDREF(elts);
*aResult = elts;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::CreateRange(nsIDOMRange** aReturn)
{
return NS_NewRange(aReturn);
}
NS_IMETHODIMP
nsDocument::GetDefaultView(nsIDOMAbstractView** aDefaultView)
{
NS_ENSURE_ARG_POINTER(aDefaultView);
*aDefaultView = nsnull;
nsIPresShell *shell = NS_STATIC_CAST(nsIPresShell *,
mPresShells.ElementAt(0));
NS_ENSURE_TRUE(shell, NS_OK);
nsCOMPtr<nsIPresContext> ctx;
nsresult rv = shell->GetPresContext(getter_AddRefs(ctx));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && ctx, rv);
nsCOMPtr<nsISupports> container;
rv = ctx->GetContainer(getter_AddRefs(container));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && container, rv);
nsCOMPtr<nsIInterfaceRequestor> ifrq(do_QueryInterface(container));
NS_ENSURE_TRUE(ifrq, NS_OK);
nsCOMPtr<nsIDOMWindow> window;
ifrq->GetInterface(NS_GET_IID(nsIDOMWindow), getter_AddRefs(window));
NS_ENSURE_TRUE(window, NS_OK);
window->QueryInterface(NS_GET_IID(nsIDOMAbstractView),
(void **)aDefaultView);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::Load (const nsString& aUrl)
{
// Should be implemented by subclass
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetPlugins(nsIDOMPluginArray** aPlugins)
{
NS_ENSURE_ARG_POINTER(aPlugins);
*aPlugins = nsnull;
// XXX Could also get this through mScriptGlobalObject
nsIPresShell *shell = NS_STATIC_CAST(nsIPresShell *,
mPresShells.ElementAt(0));
NS_ENSURE_TRUE(shell, NS_OK);
nsCOMPtr<nsIPresContext> ctx;
nsresult rv = shell->GetPresContext(getter_AddRefs(ctx));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && ctx, rv);
nsCOMPtr<nsISupports> container;
rv = ctx->GetContainer(getter_AddRefs(container));
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && container, rv);
nsCOMPtr<nsIInterfaceRequestor> ifrq(do_QueryInterface(container));
NS_ENSURE_TRUE(ifrq, NS_OK);
nsCOMPtr<nsIDOMWindow> window;
ifrq->GetInterface(NS_GET_IID(nsIDOMWindow), getter_AddRefs(window));
NS_ENSURE_TRUE(window, NS_OK);
nsCOMPtr<nsIDOMNavigator> navigator;
window->GetNavigator(getter_AddRefs(navigator));
NS_ENSURE_TRUE(navigator, NS_OK);
return navigator->GetPlugins(aPlugins);
}
//
// nsIDOMNode methods
//
NS_IMETHODIMP
nsDocument::GetNodeName(nsString& aNodeName)
{
aNodeName.AssignWithConversion("#document");
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetNodeValue(nsString& aNodeValue)
{
aNodeValue.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetNodeValue(const nsString& aNodeValue)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsDocument::GetNodeType(PRUint16* aNodeType)
{
*aNodeType = nsIDOMNode::DOCUMENT_NODE;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetParentNode(nsIDOMNode** aParentNode)
{
*aParentNode = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetChildNodes(nsIDOMNodeList** aChildNodes)
{
if (nsnull == mChildNodes) {
mChildNodes = new nsDocumentChildNodes(this);
if (nsnull == mChildNodes) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(mChildNodes);
}
return mChildNodes->QueryInterface(NS_GET_IID(nsIDOMNodeList), (void**)aChildNodes);
}
NS_IMETHODIMP
nsDocument::HasChildNodes(PRBool* aHasChildNodes)
{
NS_ENSURE_ARG(aHasChildNodes);
*aHasChildNodes = (((nsnull != mProlog) && (0 != mProlog->Count())) ||
(nsnull != mRootContent) ||
((nsnull != mEpilog) && (0 != mEpilog->Count())));
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetFirstChild(nsIDOMNode** aFirstChild)
{
nsresult result = NS_OK;
*aFirstChild = nsnull;
if ((nsnull != mProlog) && (0 != mProlog->Count())) {
nsIContent* content;
content = (nsIContent *)mProlog->ElementAt(0);
if (nsnull != content) {
result = content->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)aFirstChild);
}
}
else {
nsIDOMElement* element;
result = GetDocumentElement(&element);
if ((NS_OK == result) && element) {
result = element->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)aFirstChild);
NS_RELEASE(element);
}
}
return result;
}
NS_IMETHODIMP
nsDocument::GetLastChild(nsIDOMNode** aLastChild)
{
nsresult result = NS_OK;
if ((nsnull != mEpilog) && (0 != mEpilog->Count())) {
nsIContent* content;
content = (nsIContent *)mEpilog->ElementAt(mEpilog->Count()-1);
if (nsnull != content) {
result = content->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)aLastChild);
}
}
else {
nsIDOMElement* element;
result = GetDocumentElement(&element);
if ((NS_OK == result) && element) {
result = element->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)aLastChild);
NS_RELEASE(element);
}
}
return result;
}
NS_IMETHODIMP
nsDocument::GetPreviousSibling(nsIDOMNode** aPreviousSibling)
{
*aPreviousSibling = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetNextSibling(nsIDOMNode** aNextSibling)
{
*aNextSibling = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetAttributes(nsIDOMNamedNodeMap** aAttributes)
{
*aAttributes = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetNamespaceURI(nsString& aNamespaceURI)
{
aNamespaceURI.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetPrefix(nsString& aPrefix)
{
aPrefix.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetPrefix(const nsString& aPrefix)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsDocument::GetLocalName(nsString& aLocalName)
{
aLocalName.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsDocument::InsertBefore(nsIDOMNode* aNewChild, nsIDOMNode* aRefChild, nsIDOMNode** aReturn)
{
NS_ASSERTION(nsnull != aNewChild, "null ptr");
nsresult result = NS_OK;
PRInt32 index;
PRUint16 nodeType;
nsIContent *content, *refContent = nsnull;
if (nsnull == aNewChild) {
return NS_ERROR_NULL_POINTER;
}
aNewChild->GetNodeType(&nodeType);
if ((COMMENT_NODE != nodeType) &&
(TEXT_NODE != nodeType) &&
(PROCESSING_INSTRUCTION_NODE != nodeType) &&
(DOCUMENT_TYPE_NODE != nodeType) &&
(ELEMENT_NODE != nodeType)) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
result = aNewChild->QueryInterface(NS_GET_IID(nsIContent), (void**)&content);
if (NS_OK != result) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
if (ELEMENT_NODE == nodeType) {
if (mRootContent) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
else {
SetRootContent(content);
ContentInserted(nsnull, content, 0);
}
}
else if (nsnull == aRefChild) {
if ((!mProlog || (mProlog && mProlog->Count())) && mRootContent) {
AppendToEpilog(content);
} else if (nodeType != ELEMENT_NODE) {
AppendToProlog(content);
} else {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
}
else {
result = aRefChild->QueryInterface(NS_GET_IID(nsIContent), (void**)&refContent);
if (NS_OK != result) {
NS_RELEASE(content);
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
if ((nsnull != mProlog) && (0 != mProlog->Count())) {
index = mProlog->IndexOf(refContent);
if (-1 != index) {
mProlog->InsertElementAt(content, index);
NS_ADDREF(content);
}
}
if (refContent == mRootContent) {
AppendToProlog(content);
}
else if ((nsnull != mEpilog) && (0 != mEpilog->Count())) {
index = mEpilog->IndexOf(refContent);
if (-1 != index) {
mEpilog->InsertElementAt(content, index);
NS_ADDREF(content);
}
}
NS_RELEASE(refContent);
}
if (NS_OK == result) {
content->SetDocument(this, PR_TRUE, PR_TRUE);
*aReturn = aNewChild;
NS_ADDREF(aNewChild);
}
else {
*aReturn = nsnull;
}
NS_RELEASE(content);
return result;
}
NS_IMETHODIMP
nsDocument::ReplaceChild(nsIDOMNode* aNewChild, nsIDOMNode* aOldChild, nsIDOMNode** aReturn)
{
NS_ASSERTION(((nsnull != aNewChild) && (nsnull != aOldChild)), "null ptr");
nsresult result = NS_OK;
PRInt32 index;
PRUint16 nodeType;
nsIContent *content, *refContent;
PRBool found = PR_FALSE;
if ((nsnull == aNewChild) || (nsnull == aOldChild)) {
return NS_ERROR_NULL_POINTER;
}
aNewChild->GetNodeType(&nodeType);
if ((COMMENT_NODE != nodeType) &&
(TEXT_NODE != nodeType) &&
(PROCESSING_INSTRUCTION_NODE != nodeType) &&
(DOCUMENT_TYPE_NODE != nodeType) &&
(ELEMENT_NODE != nodeType)) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
result = aNewChild->QueryInterface(NS_GET_IID(nsIContent), (void**)&content);
if (NS_OK != result) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
result = aOldChild->QueryInterface(NS_GET_IID(nsIContent), (void**)&refContent);
if (NS_OK != result) {
NS_RELEASE(content);
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
if ((nsnull != mProlog) && (0 != mProlog->Count())) {
index = mProlog->IndexOf(refContent);
if (-1 != index) {
nsIContent* oldContent;
oldContent = (nsIContent*)mProlog->ElementAt(index);
oldContent->SetDocument(nsnull, PR_TRUE, PR_TRUE);
ContentRemoved(nsnull, oldContent, index);
NS_RELEASE(oldContent);
mProlog->ReplaceElementAt(content, index);
ContentInserted(nsnull, content, index);
NS_ADDREF(content);
found = PR_TRUE;
}
}
if (!found && (refContent == mRootContent)) {
if (ELEMENT_NODE == nodeType) {
// Out with the old
ContentRemoved(nsnull, mRootContent, mProlog->Count());
// In with the new
SetRootContent(content);
ContentInserted(nsnull, content, mProlog->Count());
found = PR_TRUE;
}
else {
NS_RELEASE(refContent);
NS_RELEASE(content);
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
}
else if (!found && (nsnull != mEpilog) && (0 != mEpilog->Count())) {
index = mEpilog->IndexOf(refContent);
if (-1 != index) {
nsIContent* oldContent;
oldContent = (nsIContent*)mEpilog->ElementAt(index);
ContentRemoved(nsnull, oldContent, mProlog->Count()+(mRootContent?1:0)+index);
NS_RELEASE(oldContent);
mEpilog->ReplaceElementAt(content, index);
ContentInserted(nsnull, content, mProlog->Count()+(mRootContent?1:0)+index);
NS_ADDREF(content);
found = PR_TRUE;
}
}
if (found) {
content->SetDocument(this, PR_TRUE, PR_TRUE);
refContent->SetDocument(nsnull, PR_TRUE, PR_TRUE);
*aReturn = aOldChild;
NS_ADDREF(aOldChild);
}
else {
*aReturn = nsnull;
result = NS_ERROR_DOM_NOT_FOUND_ERR;
}
NS_RELEASE(content);
NS_RELEASE(refContent);
return result;
}
NS_IMETHODIMP
nsDocument::RemoveChild(nsIDOMNode* aOldChild, nsIDOMNode** aReturn)
{
NS_ASSERTION(nsnull != aOldChild, "null ptr");
nsresult result = NS_OK;
PRInt32 index;
nsIContent *content;
PRBool found = PR_FALSE;
if (nsnull == aOldChild) {
return NS_ERROR_NULL_POINTER;
}
result = aOldChild->QueryInterface(NS_GET_IID(nsIContent), (void**)&content);
if (NS_OK != result) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
if ((nsnull != mProlog) && (0 != mProlog->Count())) {
index = mProlog->IndexOf(content);
if (-1 != index) {
// Don't drop reference count since we're going
// to return this element anyway.
ContentRemoved(nsnull, content, index);
mProlog->RemoveElementAt(index);
found = PR_TRUE;
}
}
if (!found && (content == mRootContent)) {
// Out with the old
ContentRemoved(nsnull, mRootContent, mProlog->Count());
NS_ADDREF(mRootContent); // for return, since next line releases
SetRootContent(nsnull);
found = PR_TRUE;
}
else if (!found && (nsnull != mEpilog) && (0 != mEpilog->Count())) {
index = mEpilog->IndexOf(content);
if (-1 != index) {
// Don't drop reference count since we're going
// to return this element anyway.
ContentRemoved(nsnull, content, mProlog->Count()+(mRootContent?1:0)+index);
mEpilog->RemoveElementAt(index);
found = PR_TRUE;
}
}
if (found) {
content->SetDocument(nsnull, PR_TRUE, PR_TRUE);
// The refcount return was AddRef'd / not released above.
*aReturn = aOldChild;
result = NS_OK;
}
else {
*aReturn = nsnull;
result = NS_ERROR_DOM_NOT_FOUND_ERR;
}
NS_RELEASE(content);
return result;
}
NS_IMETHODIMP
nsDocument::AppendChild(nsIDOMNode* aNewChild, nsIDOMNode** aReturn)
{
return InsertBefore(aNewChild, nsnull, aReturn);
}
NS_IMETHODIMP
nsDocument::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
{
// XXX should be implemented by subclass
*aReturn = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::Normalize()
{
// XXX Not completely correct, since you can still have unnormalized
// text nodes as immediate children of the document.
if (mRootContent) {
nsCOMPtr<nsIDOMNode> node = do_QueryInterface(mRootContent);
if (node) {
return node->Normalize();
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::Supports(const nsString& aFeature, const nsString& aVersion,
PRBool* aReturn)
{
return nsGenericElement::InternalSupports(aFeature, aVersion, aReturn);
}
NS_IMETHODIMP
nsDocument::GetOwnerDocument(nsIDOMDocument** aOwnerDocument)
{
*aOwnerDocument = nsnull;
return NS_OK;
}
nsresult nsDocument::GetListenerManager(nsIEventListenerManager **aInstancePtrResult)
{
if (nsnull != mListenerManager) {
return mListenerManager->QueryInterface(NS_GET_IID(nsIEventListenerManager), (void**) aInstancePtrResult);
}
if (NS_OK == GetNewListenerManager(aInstancePtrResult)) {
mListenerManager = *aInstancePtrResult;
NS_ADDREF(mListenerManager);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
nsresult nsDocument::GetNewListenerManager(nsIEventListenerManager **aInstancePtrResult)
{
return NS_NewEventListenerManager(aInstancePtrResult);
}
nsresult nsDocument::HandleEvent(nsIDOMEvent *aEvent)
{
return DispatchEvent(aEvent);
}
nsresult nsDocument::HandleDOMEvent(nsIPresContext* aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus* aEventStatus)
{
nsresult mRet = NS_OK;
nsIDOMEvent* domEvent = nsnull;
if (NS_EVENT_FLAG_INIT & aFlags) {
if (!aDOMEvent) {
aDOMEvent = &domEvent;
}
aEvent->flags = aFlags;
aFlags &= ~(NS_EVENT_FLAG_CANT_BUBBLE | NS_EVENT_FLAG_CANT_CANCEL);
}
//Capturing stage
if (NS_EVENT_FLAG_BUBBLE != aFlags && nsnull != mScriptGlobalObject) {
mScriptGlobalObject->HandleDOMEvent(aPresContext, aEvent, aDOMEvent, NS_EVENT_FLAG_CAPTURE, aEventStatus);
}
//Local handling stage
if (mListenerManager && !(aEvent->flags & NS_EVENT_FLAG_STOP_DISPATCH) &&
!(NS_EVENT_FLAG_BUBBLE & aFlags && NS_EVENT_FLAG_CANT_BUBBLE & aEvent->flags)) {
aEvent->flags |= aFlags;
mListenerManager->HandleEvent(aPresContext, aEvent, aDOMEvent, this, aFlags, aEventStatus);
aEvent->flags &= ~aFlags;
}
//Bubbling stage
if (NS_EVENT_FLAG_CAPTURE != aFlags && nsnull != mScriptGlobalObject) {
mScriptGlobalObject->HandleDOMEvent(aPresContext, aEvent, aDOMEvent, NS_EVENT_FLAG_BUBBLE, aEventStatus);
}
if (NS_EVENT_FLAG_INIT & aFlags) {
// We're leaving the DOM event loop so if we created a DOM event, release here.
if (nsnull != *aDOMEvent) {
nsrefcnt rc;
NS_RELEASE2(*aDOMEvent, rc);
if (0 != rc) {
//Okay, so someone in the DOM loop (a listener, JS object) still has a ref to the DOM Event but
//the internal data hasn't been malloc'd. Force a copy of the data here so the DOM Event is still valid.
nsIPrivateDOMEvent *mPrivateEvent;
if (NS_OK == (*aDOMEvent)->QueryInterface(NS_GET_IID(nsIPrivateDOMEvent), (void**)&mPrivateEvent)) {
mPrivateEvent->DuplicatePrivateData();
NS_RELEASE(mPrivateEvent);
}
}
}
aDOMEvent = nsnull;
}
return mRet;
}
nsresult nsDocument::AddEventListenerByIID(nsIDOMEventListener *aListener, const nsIID& aIID)
{
nsIEventListenerManager *manager;
if (NS_OK == GetListenerManager(&manager)) {
manager->AddEventListenerByIID(aListener, aIID, NS_EVENT_FLAG_BUBBLE);
NS_RELEASE(manager);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
nsresult nsDocument::RemoveEventListenerByIID(nsIDOMEventListener *aListener, const nsIID& aIID)
{
if (nsnull != mListenerManager) {
mListenerManager->RemoveEventListenerByIID(aListener, aIID, NS_EVENT_FLAG_BUBBLE);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
nsresult nsDocument::AddEventListener(const nsString& aType, nsIDOMEventListener* aListener,
PRBool aUseCapture)
{
nsIEventListenerManager *manager;
if (NS_OK == GetListenerManager(&manager)) {
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
manager->AddEventListenerByType(aListener, aType, flags);
NS_RELEASE(manager);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
nsresult nsDocument::RemoveEventListener(const nsString& aType, nsIDOMEventListener* aListener,
PRBool aUseCapture)
{
if (nsnull != mListenerManager) {
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
mListenerManager->RemoveEventListenerByType(aListener, aType, flags);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDocument::DispatchEvent(nsIDOMEvent* aEvent)
{
// Obtain a presentation context
PRInt32 count = GetNumberOfShells();
if (count == 0)
return NS_OK;
nsCOMPtr<nsIPresShell> shell = getter_AddRefs(GetShellAt(0));
// Retrieve the context
nsCOMPtr<nsIPresContext> presContext;
shell->GetPresContext(getter_AddRefs(presContext));
nsCOMPtr<nsIEventStateManager> esm;
if (NS_SUCCEEDED(presContext->GetEventStateManager(getter_AddRefs(esm)))) {
return esm->DispatchNewEvent((nsISupports *)(nsIDOMDocument *)this, aEvent);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsDocument::CreateEvent(const nsString& aEventType, nsIDOMEvent** aReturn)
{
// Obtain a presentation context
PRInt32 count = GetNumberOfShells();
if (count == 0)
return NS_OK;
nsCOMPtr<nsIPresShell> shell = getter_AddRefs(GetShellAt(0));
// Retrieve the context
nsCOMPtr<nsIPresContext> presContext;
shell->GetPresContext(getter_AddRefs(presContext));
if (presContext) {
nsCOMPtr<nsIEventListenerManager> lm;
if (NS_SUCCEEDED(GetListenerManager(getter_AddRefs(lm)))) {
return lm->CreateEvent(presContext, nsnull, aEventType, aReturn);
}
}
return NS_ERROR_FAILURE;
}
PRBool nsDocument::AddProperty(JSContext *aContext, JSObject *aObj, jsval aID, jsval *aVp)
{
return PR_TRUE;
}
PRBool nsDocument::DeleteProperty(JSContext *aContext, JSObject *aObj, jsval aID, jsval *aVp)
{
return PR_TRUE;
}
PRBool nsDocument::GetProperty(JSContext *aContext, JSObject *aObj, jsval aID, jsval *aVp)
{
PRBool result = PR_TRUE;
if (JSVAL_IS_STRING(aID) &&
PL_strcmp("location", JS_GetStringBytes(JS_ValueToString(aContext, aID))) == 0) {
if (mScriptGlobalObject) {
nsCOMPtr<nsIJSScriptObject> window(do_QueryInterface(mScriptGlobalObject));
if(window) {
result = window->GetProperty(aContext, aObj, aID, aVp);
}
else {
result = PR_FALSE;
}
}
}
return result;
}
PRBool nsDocument::SetProperty(JSContext *aContext, JSObject *aObj, jsval aID, jsval *aVp)
{
PRBool result = PR_TRUE;
if (JS_TypeOfValue(aContext, *aVp) == JSTYPE_FUNCTION && JSVAL_IS_STRING(aID)) {
nsAutoString mPropName, mPrefix;
mPropName.Assign(NS_REINTERPRET_CAST(const PRUnichar*, JS_GetStringChars(JS_ValueToString(aContext, aID))));
if (mPropName.Length() > 2)
mPrefix.Assign(mPropName.GetUnicode(), 2);
if (mPrefix.EqualsWithConversion("on")) {
nsCOMPtr<nsIAtom> atom = getter_AddRefs(NS_NewAtom(mPropName));
nsIEventListenerManager *mManager = nsnull;
if (atom.get() == nsLayoutAtoms::onmousedown || atom.get() == nsLayoutAtoms::onmouseup || atom.get() == nsLayoutAtoms::onclick ||
atom.get() == nsLayoutAtoms::onmouseover || atom.get() == nsLayoutAtoms::onmouseout) {
if (NS_OK == GetListenerManager(&mManager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if(NS_FAILED(nsLayoutUtils::GetStaticScriptContext(aContext, (JSObject*)mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != mManager->RegisterScriptEventListener(mScriptCX, this, atom, NS_GET_IID(nsIDOMMouseListener))) {
NS_RELEASE(mManager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onkeydown || atom.get() == nsLayoutAtoms::onkeyup || atom.get() == nsLayoutAtoms::onkeypress) {
if (NS_OK == GetListenerManager(&mManager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if(NS_FAILED(nsLayoutUtils::GetStaticScriptContext(aContext, (JSObject*)mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != mManager->RegisterScriptEventListener(mScriptCX, this, atom, NS_GET_IID(nsIDOMKeyListener))) {
NS_RELEASE(mManager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onmousemove) {
if (NS_OK == GetListenerManager(&mManager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if(NS_FAILED(nsLayoutUtils::GetStaticScriptContext(aContext, (JSObject*)mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != mManager->RegisterScriptEventListener(mScriptCX, this, atom, NS_GET_IID(nsIDOMMouseMotionListener))) {
NS_RELEASE(mManager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onfocus || atom.get() == nsLayoutAtoms::onblur) {
if (NS_OK == GetListenerManager(&mManager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if(NS_FAILED(nsLayoutUtils::GetStaticScriptContext(aContext, (JSObject*)mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != mManager->RegisterScriptEventListener(mScriptCX, this, atom, NS_GET_IID(nsIDOMFocusListener))) {
NS_RELEASE(mManager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onsubmit || atom.get() == nsLayoutAtoms::onreset || atom.get() == nsLayoutAtoms::onchange ||
atom.get() == nsLayoutAtoms::onselect) {
if (NS_OK == GetListenerManager(&mManager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if(NS_FAILED(nsLayoutUtils::GetStaticScriptContext(aContext, (JSObject*)mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != mManager->RegisterScriptEventListener(mScriptCX, this, atom, NS_GET_IID(nsIDOMFormListener))) {
NS_RELEASE(mManager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onload || atom.get() == nsLayoutAtoms::onunload || atom.get() == nsLayoutAtoms::onabort ||
atom.get() == nsLayoutAtoms::onerror) {
if (NS_OK == GetListenerManager(&mManager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if(NS_FAILED(nsLayoutUtils::GetStaticScriptContext(aContext, (JSObject*)mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != mManager->RegisterScriptEventListener(mScriptCX, this, atom, NS_GET_IID(nsIDOMLoadListener))) {
NS_RELEASE(mManager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onpaint) {
if (NS_OK == GetListenerManager(&mManager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if(NS_FAILED(nsLayoutUtils::GetStaticScriptContext(aContext, (JSObject*)mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != mManager->RegisterScriptEventListener(mScriptCX, this,
atom, NS_GET_IID(nsIDOMPaintListener))) {
NS_RELEASE(mManager);
return PR_FALSE;
}
}
}
NS_IF_RELEASE(mManager);
}
}
else if (JSVAL_IS_STRING(aID) &&
PL_strcmp("location", JS_GetStringBytes(JS_ValueToString(aContext, aID))) == 0) {
if (mScriptGlobalObject) {
nsCOMPtr<nsIJSScriptObject> window(do_QueryInterface(mScriptGlobalObject));
if(window) {
result = window->SetProperty(aContext, aObj, aID, aVp);
}
else {
result = PR_FALSE;
}
}
}
return result;
}
PRBool nsDocument::EnumerateProperty(JSContext *aContext, JSObject *aObj)
{
return PR_TRUE;
}
PRBool nsDocument::Resolve(JSContext *aContext, JSObject *aObj, jsval aID)
{
return PR_TRUE;
}
PRBool nsDocument::Convert(JSContext *aContext, JSObject *aObj, jsval aID)
{
return PR_TRUE;
}
void nsDocument::Finalize(JSContext *aContext, JSObject *aObj)
{
}
/**
* Finds text in content
*/
NS_IMETHODIMP nsDocument::FindNext(const nsString &aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound)
{
aIsFound = PR_FALSE;
return NS_ERROR_FAILURE;
}
void nsDocument::BeginConvertToXIF(nsIXIFConverter *aConverter, nsIDOMNode* aNode)
{
nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
PRBool isSynthetic = PR_TRUE;
// Begin Conversion
if (content)
{
content->IsSynthetic(isSynthetic);
if (PR_FALSE == isSynthetic)
{
content->BeginConvertToXIF(aConverter);
content->ConvertContentToXIF(aConverter);
}
}
}
void nsDocument::ConvertChildrenToXIF(nsIXIFConverter * aConverter, nsIDOMNode* aNode)
{
// Iterate through the children, convertion child nodes
nsresult result = NS_OK;
nsCOMPtr<nsIDOMNode> child;
result = aNode->GetFirstChild(getter_AddRefs(child));
while ((result == NS_OK) && (child != nsnull))
{
nsCOMPtr<nsIDOMNode> temp(child);
result=ToXIF(aConverter,child);
result = temp->GetNextSibling(getter_AddRefs(child));
}
}
void nsDocument::FinishConvertToXIF(nsIXIFConverter* aConverter, nsIDOMNode* aNode)
{
nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
PRBool isSynthetic = PR_TRUE;
if (content)
{
content->IsSynthetic(isSynthetic);
if (PR_FALSE == isSynthetic)
content->FinishConvertToXIF(aConverter);
}
}
NS_IMETHODIMP
nsDocument::ToXIF(nsIXIFConverter* aConverter, nsIDOMNode* aNode)
{
nsresult result=NS_OK;
nsCOMPtr<nsIDOMSelection> sel;
aConverter->GetSelection(getter_AddRefs(sel));
if (sel)
{
nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
if (NS_SUCCEEDED(result) && content)
{
PRBool isInSelection = IsInSelection(sel,content);
if (isInSelection == PR_TRUE)
{
BeginConvertToXIF(aConverter,aNode);
ConvertChildrenToXIF(aConverter,aNode);
FinishConvertToXIF(aConverter,aNode);
}
else
{
ConvertChildrenToXIF(aConverter,aNode);
}
}
}
else
{
BeginConvertToXIF(aConverter,aNode);
ConvertChildrenToXIF(aConverter,aNode);
FinishConvertToXIF(aConverter,aNode);
}
return result;
}
NS_IMETHODIMP
nsDocument::CreateXIF(nsString & aBuffer, nsIDOMSelection* aSelection)
{
nsresult result=NS_OK;
nsCOMPtr<nsIXIFConverter> converter;
nsComponentManager::CreateInstance(kXIFConverterCID,
nsnull,
NS_GET_IID(nsIXIFConverter),
getter_AddRefs(converter));
NS_ENSURE_TRUE(converter,NS_ERROR_FAILURE);
converter->Init(aBuffer);
if (aSelection)
converter->SetSelection(aSelection);
converter->AddStartTag( NS_ConvertToString("section") , PR_TRUE);
converter->AddStartTag( NS_ConvertToString("section_head") , PR_TRUE);
converter->BeginStartTag( NS_ConvertToString("document_info") );
converter->AddAttribute(NS_ConvertToString("charset"),mCharacterSet);
nsCOMPtr<nsIURI> uri (getter_AddRefs(GetDocumentURL()));
if (uri)
{
char* spec = 0;
if (NS_SUCCEEDED(uri->GetSpec(&spec)) && spec)
{
converter->AddAttribute(NS_ConvertToString("uri"), NS_ConvertToString(spec));
Recycle(spec);
}
}
converter->FinishStartTag(NS_ConvertToString("document_info"),PR_TRUE,PR_TRUE);
converter->AddEndTag(NS_ConvertToString("section_head"), PR_TRUE, PR_TRUE);
converter->AddStartTag(NS_ConvertToString("section_body"), PR_TRUE);
nsCOMPtr<nsIDOMDocumentType> doctype;
GetDoctype(getter_AddRefs(doctype));
if(doctype) {
nsAutoString tmpStr, docTypeStr;
doctype->GetName(tmpStr);
if (tmpStr.Length()) {
docTypeStr.AppendWithConversion("DOCTYPE ");
docTypeStr.Append(tmpStr);
doctype->GetPublicId(tmpStr);
if (tmpStr.Length()) {
docTypeStr.AppendWithConversion(" PUBLIC \"");
docTypeStr.Append(tmpStr);
docTypeStr.AppendWithConversion('"');
}
doctype->GetSystemId(tmpStr);
if (tmpStr.Length()) {
docTypeStr.AppendWithConversion(" SYSTEM \"");
docTypeStr.Append(tmpStr);
docTypeStr.AppendWithConversion('"');
}
doctype->GetInternalSubset(tmpStr);
if (tmpStr.Length()) {
docTypeStr.AppendWithConversion(" [\n");
docTypeStr.Append(tmpStr);
docTypeStr.AppendWithConversion("\n]");
}
}
if (docTypeStr.Length())
converter->AddMarkupDeclaration(docTypeStr);
}
nsCOMPtr<nsIDOMElement> rootElement;
if (aSelection)
{
PRInt32 rangeCount;
if (NS_SUCCEEDED(aSelection->GetRangeCount(&rangeCount)) && rangeCount == 1) //getter_AddRefs(node));
{
nsCOMPtr<nsIDOMNode> anchor;
nsCOMPtr<nsIDOMNode> focus;
if (NS_SUCCEEDED(aSelection->GetAnchorNode(getter_AddRefs(anchor))))
{
if (NS_SUCCEEDED(aSelection->GetFocusNode(getter_AddRefs(focus))))
{
//check to see if these are text nodes if so there is still a chance at optimization
//from checking their respective parents
if (focus.get() != anchor.get())
{
nsCOMPtr<nsIDOMText> domText(do_QueryInterface(focus));
if (domText)
{
nsCOMPtr<nsIDOMNode> parent;
result = focus->GetParentNode(getter_AddRefs(parent));
if (NS_SUCCEEDED(result) && parent)
focus = parent;
}
domText = do_QueryInterface(anchor);
if (domText)
{
nsCOMPtr<nsIDOMNode> parent;
result = anchor->GetParentNode(getter_AddRefs(parent));
if (NS_SUCCEEDED(result) && parent)
anchor = parent;
}
}//end parent checking
if (focus.get() == anchor.get())
{
rootElement = do_QueryInterface(focus);//set root to top of selection
if (!rootElement)//maybe its a text node since both are the same. both parents are the same. pick one
{
nsCOMPtr<nsIDOMNode> parent;
anchor->GetParentNode(getter_AddRefs(parent));
rootElement = do_QueryInterface(parent);//set root to top of selection
}
}
}
}
}
}
if (!rootElement)
result=GetDocumentElement(getter_AddRefs(rootElement));
if (NS_SUCCEEDED(result) && rootElement)
{
#if 1
result=ToXIF(converter,rootElement);
#else
if(NS_SUCCEEDED(rv)) {
// Make a content iterator over the selection:
nsCOMPtr<nsIContentIterator> iter;
result = nsComponentManager::CreateInstance(kCContentIteratorCID, nsnull,
NS_GET_IID(nsIContentIterator),
getter_AddRefs(iter));
if ((NS_SUCCEEDED(result)) && iter)
{
nsCOMPtr<nsIContent> rootContent (do_QueryInterface(root));
if (rootContent)
{
iter->Init(rootContent);
// loop through the content iterator for each content node
while (NS_COMFALSE == iter->IsDone())
{
nsCOMPtr<nsIContent> content;
res = iter->CurrentNode(getter_AddRefs(content));
if (NS_FAILED(res))
break;
//content->BeginConvertToXIF(converter);
content->ConvertContentToXIF(converter);
//content->FinishConvertToXIF(converter);
#if 0
nsCOMPtr<nsIDOMNode> node (do_QueryInterface(content));
if (node)
ToXIF(converter, node);
#endif
iter->Next();
}
}
}
}
#endif
}
converter->AddEndTag(NS_ConvertToString("section_body"), PR_TRUE, PR_TRUE);
converter->AddEndTag(NS_ConvertToString("section"), PR_TRUE, PR_TRUE);
return result;
}
static NS_DEFINE_IID(kCParserIID, NS_IPARSER_IID);
static NS_DEFINE_IID(kCParserCID, NS_PARSER_IID);
#if 0
nsresult
nsDocument::OutputDocumentAs(nsIOutputStream* aStream,
nsIDOMSelection* selection,
EOutputFormat aOutputFormat,
const nsString& aCharset,
PRUint32 aFlags)
{
nsresult rv = NS_OK;
nsAutoString charsetStr; charsetStr.Assign(aCharset);
if (charsetStr.Length() == 0)
{
rv = GetDocumentCharacterSet(charsetStr);
if(NS_FAILED(rv)) {
charsetStr.AssignWithConversion("ISO-8859-1");
}
}
nsCOMPtr<nsIParser> parser;
rv = nsComponentManager::CreateInstance(kCParserCID,
nsnull,
kCParserIID,
getter_AddRefs(parser));
if (NS_SUCCEEDED(rv))
{
nsString buffer;
rv=CreateXIF(buffer, selection); // if selection is null, ignores the selection
if(NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIHTMLContentSink> sink;
switch (aOutputFormat)
{
case eOutputText:
rv = NS_New_HTMLToTXT_SinkStream(getter_AddRefs(sink), aStream, &charsetStr, 0);
break;
case eOutputHTML:
rv = NS_New_HTML_ContentSinkStream(getter_AddRefs(sink), aStream, &charsetStr, 0);
break;
default:
rv = NS_ERROR_INVALID_ARG;
}
if (NS_SUCCEEDED(rv) && sink)
{
parser->SetContentSink(sink);
parser->SetDocumentCharset(charsetStr, kCharsetFromPreviousLoading);
nsCOMPtr<nsIDTD> dtd;
rv = NS_NewXIFDTD(getter_AddRefs(dtd));
if (NS_SUCCEEDED(rv) && dtd)
{
parser->RegisterDTD(dtd);
parser->Parse(buffer, 0, NS_ConvertToString("text/xif"), PR_FALSE, PR_TRUE);
}
}
}
}
return rv;
}
#endif
NS_IMETHODIMP
nsDocument::InitDiskDocument(nsFileSpec* aFileSpec)
{
mFileSpec = nsnull;
if (aFileSpec)
{
mFileSpec = new nsFileSpec(*aFileSpec);
if (!mFileSpec)
return NS_ERROR_OUT_OF_MEMORY;
}
mModCount = 0;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SaveFile(nsFileSpec* aFileSpec,
PRBool aReplaceExisting,
PRBool aSaveCopy,
const nsString& aFormatType,
const nsString& aSaveCharset,
PRUint32 aFlags)
{
if (!aFileSpec)
return NS_ERROR_NULL_POINTER;
nsresult rv = NS_OK;
// if we're not replacing an existing file but the file
// exists, somethine is wrong
if (!aReplaceExisting && aFileSpec->Exists())
return NS_ERROR_FAILURE; // where are the file I/O errors?
nsOutputFileStream stream(*aFileSpec);
// if the stream didn't open, something went wrong
if (!stream.is_open())
return NS_BASE_STREAM_CLOSED;
// Get a document encoder instance:
nsCOMPtr<nsIDocumentEncoder> encoder;
char* progid = (char *)nsMemory::Alloc(strlen(NS_DOC_ENCODER_PROGID_BASE)
+ aFormatType.Length() + 1);
if (! progid)
return NS_ERROR_OUT_OF_MEMORY;
strcpy(progid, NS_DOC_ENCODER_PROGID_BASE);
char* type = aFormatType.ToNewCString();
strcat(progid, type);
nsCRT::free(type);
rv = nsComponentManager::CreateInstance(progid,
nsnull,
NS_GET_IID(nsIDocumentEncoder),
getter_AddRefs(encoder));
nsCRT::free(progid);
if (NS_FAILED(rv))
return rv;
rv = encoder->Init(this, aFormatType, aFlags);
if (NS_FAILED(rv))
return rv;
nsAutoString charsetStr(aSaveCharset);
if (charsetStr.Length() == 0)
{
rv = GetDocumentCharacterSet(charsetStr);
if(NS_FAILED(rv)) {
charsetStr.AssignWithConversion("ISO-8859-1");
}
}
encoder->SetCharset(charsetStr);
rv = encoder->EncodeToStream(stream.GetIStream());
if (NS_SUCCEEDED(rv))
{
// if everything went OK and we're not just saving off a copy,
// store the new fileSpec in the doc
if (!aSaveCopy)
{
delete mFileSpec;
mFileSpec = new nsFileSpec(*aFileSpec);
if (!mFileSpec)
return NS_ERROR_OUT_OF_MEMORY;
// and mark the document as clean
ResetModCount();
}
}
return rv;
}
NS_IMETHODIMP
nsDocument::GetFileSpec(nsFileSpec& aFileSpec)
{
if (mFileSpec)
{
aFileSpec = *mFileSpec;
return NS_OK;
}
return NS_ERROR_NOT_INITIALIZED;
}
NS_IMETHODIMP
nsDocument::FlushPendingNotifications()
{
PRInt32 i, count = mPresShells.Count();
for (i = 0; i < count; i++) {
nsIPresShell* shell = NS_STATIC_CAST(nsIPresShell*, mPresShells[i]);
if (shell) {
shell->FlushPendingNotifications();
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetAndIncrementContentID(PRInt32* aID)
{
*aID = mNextContentID++;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetBindingManager(nsIBindingManager** aResult)
{
nsresult rv;
if (!mBindingManager) {
mBindingManager = do_CreateInstance("component://netscape/xbl/binding-manager", &rv);
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
}
*aResult = mBindingManager;
NS_IF_ADDREF(*aResult);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetModCount(PRInt32 *outModCount)
{
if (!outModCount)
return NS_ERROR_NULL_POINTER;
*outModCount = mModCount;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ResetModCount()
{
mModCount = 0;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::IncrementModCount(PRInt32 aNumMods)
{
mModCount += aNumMods;
//NS_ASSERTION(mModCount >= 0, "Modification count went negative");
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetNodeInfoManager(nsINodeInfoManager*& aNodeInfoManager)
{
NS_ENSURE_TRUE(mNodeInfoManager, NS_ERROR_NOT_INITIALIZED);
aNodeInfoManager = mNodeInfoManager;
NS_ADDREF(aNodeInfoManager);
return NS_OK;
}
//
// FindContent does a depth-first search from aStartNode
// and returns the first of aTest1 or aTest2 which it finds.
// I think.
//
nsIContent* nsDocument::FindContent(const nsIContent* aStartNode,
const nsIContent* aTest1,
const nsIContent* aTest2) const
{
PRInt32 count;
aStartNode->ChildCount(count);
PRInt32 index;
for(index = 0; index < count;index++)
{
nsIContent* child;
aStartNode->ChildAt(index, child);
nsIContent* content = FindContent(child,aTest1,aTest2);
if (content != nsnull) {
NS_IF_RELEASE(child);
return content;
}
if (child == aTest1 || child == aTest2) {
NS_IF_RELEASE(content);
return child;
}
NS_IF_RELEASE(child);
NS_IF_RELEASE(content);
}
return nsnull;
}
/**
* Determines if the content is found within the selection
*
* @update gpk 1/8/99
* @param param -- description
* @param param -- description
* @return PR_TRUE if the content is found within the selection
*/
PRBool
nsDocument::IsInSelection(nsIDOMSelection* aSelection, const nsIContent* aContent) const
{
PRBool aYes = PR_FALSE;
nsCOMPtr<nsIDOMNode> node (do_QueryInterface((nsIContent *) aContent));
aSelection->ContainsNode(node, PR_FALSE, &aYes);
return aYes;
}
nsIContent* nsDocument::GetPrevContent(const nsIContent *aContent) const
{
nsIContent* result = nsnull;
// Look at previous sibling
if (nsnull != aContent)
{
nsIContent* parent;
aContent->GetParent(parent);
if (parent != nsnull && parent != mRootContent)
{
PRInt32 index;
parent->IndexOf((nsIContent*)aContent, index);
if (index > 0)
parent->ChildAt(index-1, result);
else
result = GetPrevContent(parent);
}
NS_IF_RELEASE(parent);
}
return result;
}
nsIContent* nsDocument::GetNextContent(const nsIContent *aContent) const
{
nsIContent* result = nsnull;
if (nsnull != aContent)
{
// Look at next sibling
nsIContent* parent;
aContent->GetParent(parent);
if (parent != nsnull && parent != mRootContent)
{
PRInt32 index;
parent->IndexOf((nsIContent*)aContent, index);
PRInt32 count;
parent->ChildCount(count);
if (index+1 < count) {
parent->ChildAt(index+1, result);
// Get first child down the tree
for (;;) {
PRInt32 n;
result->ChildCount(n);
if (n <= 0) {
break;
}
nsIContent * old = result;
old->ChildAt(0, result);
NS_RELEASE(old);
result->ChildCount(n);
}
} else {
result = GetNextContent(parent);
}
}
NS_IF_RELEASE(parent);
}
return result;
}
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