gecko/content/base/src/nsDocument.cpp

5842 lines
156 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sw=2 et tw=78: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Johnny Stenback <jst@netscape.com>
* L. David Baron <dbaron@dbaron.org>
* Pierre Phaneuf <pp@ludusdesign.com>
* Pete Collins <petejc@collab.net>
* James Ross <silver@warwickcompsoc.co.uk>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* Base class for all our document implementations.
*/
#include "plstr.h"
#include "prprf.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsDocument.h"
#include "nsUnicharUtils.h"
#include "nsIPrivateDOMEvent.h"
#include "nsIEventStateManager.h"
#include "nsIFocusController.h"
#include "nsContentList.h"
#include "nsIObserver.h"
#include "nsIBaseWindow.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIScriptRuntime.h"
#include "nsCOMArray.h"
#include "nsGUIEvent.h"
#include "nsIDOMStyleSheet.h"
#include "nsDOMAttribute.h"
#include "nsIDOMDOMStringList.h"
#include "nsIDOMDOMImplementation.h"
#include "nsIDOMDocumentView.h"
#include "nsIDOMAbstractView.h"
#include "nsIDOMDocumentXBL.h"
#include "nsGenericElement.h"
#include "nsIDOMEventGroup.h"
#include "nsIDOMCDATASection.h"
#include "nsIDOMProcessingInstruction.h"
#include "nsDOMString.h"
#include "nsNodeUtils.h"
#include "nsLayoutUtils.h" // for GetFrameForPoint
#include "nsIFrame.h"
#include "nsRange.h"
#include "nsIDOMText.h"
#include "nsIDOMComment.h"
#include "nsDOMDocumentType.h"
#include "nsTreeWalker.h"
#include "nsIServiceManager.h"
#include "nsContentCID.h"
#include "nsDOMError.h"
#include "nsIPresShell.h"
#include "nsPresContext.h"
#include "nsContentUtils.h"
#include "nsThreadUtils.h"
#include "nsNodeInfoManager.h"
#include "nsIXBLService.h"
#include "nsIXPointer.h"
#include "nsIFileChannel.h"
#include "nsIMultiPartChannel.h"
#include "nsIRefreshURI.h"
#include "nsIWebNavigation.h"
#include "nsIScriptError.h"
#include "nsNetUtil.h" // for NS_MakeAbsoluteURI
#include "nsIScriptSecurityManager.h"
#include "nsIPrincipal.h"
#include "nsIPrivateDOMImplementation.h"
#include "nsIDOMWindowInternal.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMElement.h"
#include "nsGkAtoms.h"
// for radio group stuff
#include "nsIDOMHTMLInputElement.h"
#include "nsIRadioVisitor.h"
#include "nsIFormControl.h"
#include "nsXMLEventsManager.h"
#include "nsBidiUtils.h"
static NS_DEFINE_CID(kDOMEventGroupCID, NS_DOMEVENTGROUP_CID);
#include "nsIDOMUserDataHandler.h"
#include "nsScriptEventManager.h"
#include "nsIDOMXPathEvaluator.h"
#include "nsIXPathEvaluatorInternal.h"
#include "nsIParserService.h"
#include "nsContentCreatorFunctions.h"
#include "nsIScriptContext.h"
#include "nsBindingManager.h"
#include "nsIDOMHTMLDocument.h"
#include "nsIDOMHTMLFormElement.h"
#include "nsIRequest.h"
#include "nsILink.h"
#include "nsICharsetAlias.h"
#include "nsIParser.h"
#include "nsIContentSink.h"
#include "nsDateTimeFormatCID.h"
#include "nsIDateTimeFormat.h"
#include "nsEventDispatcher.h"
#include "nsMutationEvent.h"
#include "nsIDOMXPathEvaluator.h"
#include "nsDOMCID.h"
#include "nsIJSContextStack.h"
#include "nsIXPConnect.h"
#include "nsCycleCollector.h"
#include "nsCCUncollectableMarker.h"
#include "nsIContentPolicy.h"
#ifdef MOZ_LOGGING
// so we can get logging even in release builds
#define FORCE_PR_LOG 1
#endif
#include "prlog.h"
#ifdef PR_LOGGING
static PRLogModuleInfo* gDocumentLeakPRLog;
#endif
void
nsUint32ToContentHashEntry::Destroy()
{
HashSet* set = GetHashSet();
if (set) {
delete set;
} else {
nsIContent* content = GetContent();
NS_IF_RELEASE(content);
}
}
nsresult
nsUint32ToContentHashEntry::PutContent(nsIContent* aVal)
{
// Add the value to the hash if it is there
HashSet* set = GetHashSet();
if (set) {
nsISupportsHashKey* entry = set->PutEntry(aVal);
return entry ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
// If an element is already there, create a hashtable and both of these to it
nsIContent* oldVal = GetContent();
if (oldVal) {
nsresult rv = InitHashSet(&set);
NS_ENSURE_SUCCESS(rv, rv);
nsISupportsHashKey* entry = set->PutEntry(oldVal);
if (!entry) {
// OOM - we can't insert aVal, but we can at least put oldVal back (even
// if we didn't, we'd still have to release oldVal so that we don't leak)
delete set;
SetContent(oldVal);
// SetContent adds another reference, so release the one we had
NS_RELEASE(oldVal);
return NS_ERROR_OUT_OF_MEMORY;
}
// The hashset adds its own reference, so release the one we had
NS_RELEASE(oldVal);
entry = set->PutEntry(aVal);
return entry ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
// Nothing exists in the hash right now, so just set the single pointer
return SetContent(aVal);
}
void
nsUint32ToContentHashEntry::RemoveContent(nsIContent* aVal)
{
// Remove from the hash if the hash is there
HashSet* set = GetHashSet();
if (set) {
set->RemoveEntry(aVal);
if (set->Count() == 0) {
delete set;
mValOrHash = nsnull;
}
return;
}
// Remove the ptr if there is just a ptr
nsIContent* v = GetContent();
if (v == aVal) {
NS_IF_RELEASE(v);
mValOrHash = nsnull;
}
}
nsresult
nsUint32ToContentHashEntry::InitHashSet(HashSet** aSet)
{
HashSet* newSet = new HashSet();
if (!newSet) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsresult rv = newSet->Init();
NS_ENSURE_SUCCESS(rv, rv);
mValOrHash = newSet;
*aSet = newSet;
return NS_OK;
}
static PLDHashOperator PR_CALLBACK
nsUint32ToContentHashEntryVisitorCallback(nsISupportsHashKey* aEntry,
void* aClosure)
{
nsUint32ToContentHashEntry::Visitor* visitor =
static_cast<nsUint32ToContentHashEntry::Visitor*>(aClosure);
visitor->Visit(static_cast<nsIContent*>(aEntry->GetKey()));
return PL_DHASH_NEXT;
}
void
nsUint32ToContentHashEntry::VisitContent(Visitor* aVisitor)
{
HashSet* set = GetHashSet();
if (set) {
set->EnumerateEntries(nsUint32ToContentHashEntryVisitorCallback, aVisitor);
if (set->Count() == 0) {
delete set;
mValOrHash = nsnull;
}
return;
}
nsIContent* v = GetContent();
if (v) {
aVisitor->Visit(v);
}
}
// Helper structs for the content->subdoc map
class SubDocMapEntry : public PLDHashEntryHdr
{
public:
// Both of these are strong references
nsIContent *mKey; // must be first, to look like PLDHashEntryStub
nsIDocument *mSubDocument;
};
struct FindContentData
{
FindContentData(nsIDocument *aSubDoc)
: mSubDocument(aSubDoc), mResult(nsnull)
{
}
nsISupports *mSubDocument;
nsIContent *mResult;
};
/**
* A struct that holds all the information about a radio group.
*/
struct nsRadioGroupStruct
{
/**
* A strong pointer to the currently selected radio button.
*/
nsCOMPtr<nsIDOMHTMLInputElement> mSelectedRadioButton;
nsCOMArray<nsIFormControl> mRadioButtons;
};
nsDOMStyleSheetList::nsDOMStyleSheetList(nsIDocument *aDocument)
{
mLength = -1;
// Not reference counted to avoid circular references.
// The document will tell us when its going away.
mDocument = aDocument;
mDocument->AddObserver(this);
}
nsDOMStyleSheetList::~nsDOMStyleSheetList()
{
if (mDocument) {
mDocument->RemoveObserver(this);
}
}
// XXX couldn't we use the GetIIDs method from CSSStyleSheetList here?
// QueryInterface implementation for nsDOMStyleSheetList
NS_INTERFACE_TABLE_HEAD(nsDOMStyleSheetList)
NS_INTERFACE_TABLE3(nsDOMStyleSheetList,
nsIDOMStyleSheetList,
nsIDocumentObserver,
nsIMutationObserver)
NS_INTERFACE_TABLE_TO_MAP_SEGUE
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(DocumentStyleSheetList)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsDOMStyleSheetList)
NS_IMPL_RELEASE(nsDOMStyleSheetList)
NS_IMETHODIMP
nsDOMStyleSheetList::GetLength(PRUint32* aLength)
{
if (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) {
mLength = mDocument->GetNumberOfStyleSheets();
#ifdef DEBUG
PRInt32 i;
for (i = 0; i < mLength; i++) {
nsIStyleSheet *sheet = mDocument->GetStyleSheetAt(i);
nsCOMPtr<nsIDOMStyleSheet> domss(do_QueryInterface(sheet));
NS_ASSERTION(domss, "All \"normal\" sheets implement nsIDOMStyleSheet");
}
#endif
}
*aLength = mLength;
}
else {
*aLength = 0;
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetList::Item(PRUint32 aIndex, nsIDOMStyleSheet** aReturn)
{
*aReturn = nsnull;
if (mDocument) {
PRInt32 count = mDocument->GetNumberOfStyleSheets();
if (aIndex < (PRUint32)count) {
nsIStyleSheet *sheet = mDocument->GetStyleSheetAt(aIndex);
NS_ASSERTION(sheet, "Must have a sheet");
return CallQueryInterface(sheet, aReturn);
}
}
return NS_OK;
}
void
nsDOMStyleSheetList::NodeWillBeDestroyed(const nsINode *aNode)
{
mDocument = nsnull;
}
void
nsDOMStyleSheetList::StyleSheetAdded(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet,
PRBool aDocumentSheet)
{
if (aDocumentSheet && -1 != mLength) {
nsCOMPtr<nsIDOMStyleSheet> domss(do_QueryInterface(aStyleSheet));
if (domss) {
mLength++;
}
}
}
void
nsDOMStyleSheetList::StyleSheetRemoved(nsIDocument *aDocument,
nsIStyleSheet* aStyleSheet,
PRBool aDocumentSheet)
{
if (aDocumentSheet && -1 != mLength) {
nsCOMPtr<nsIDOMStyleSheet> domss(do_QueryInterface(aStyleSheet));
if (domss) {
mLength--;
}
}
}
// nsOnloadBlocker implementation
NS_IMPL_ISUPPORTS1(nsOnloadBlocker, nsIRequest)
NS_IMETHODIMP
nsOnloadBlocker::GetName(nsACString &aResult)
{
aResult.AssignLiteral("about:document-onload-blocker");
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::IsPending(PRBool *_retval)
{
*_retval = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::GetStatus(nsresult *status)
{
*status = NS_OK;
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::Cancel(nsresult status)
{
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::Suspend(void)
{
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::Resume(void)
{
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::GetLoadGroup(nsILoadGroup * *aLoadGroup)
{
*aLoadGroup = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::SetLoadGroup(nsILoadGroup * aLoadGroup)
{
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::GetLoadFlags(nsLoadFlags *aLoadFlags)
{
*aLoadFlags = nsIRequest::LOAD_NORMAL;
return NS_OK;
}
NS_IMETHODIMP
nsOnloadBlocker::SetLoadFlags(nsLoadFlags aLoadFlags)
{
return NS_OK;
}
// ==================================================================
// =
// ==================================================================
// If we ever have an nsIDocumentObserver notification for stylesheet title
// changes, we could make this inherit from nsDOMStringList instead of
// reimplementing nsIDOMDOMStringList.
class nsDOMStyleSheetSetList : public nsIDOMDOMStringList
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMDOMSTRINGLIST
nsDOMStyleSheetSetList(nsIDocument* aDocument);
void Disconnect()
{
mDocument = nsnull;
}
protected:
// Rebuild our list of style sets
nsresult GetSets(nsStringArray& aStyleSets);
nsIDocument* mDocument; // Our document; weak ref. It'll let us know if it
// dies.
};
NS_IMPL_ADDREF(nsDOMStyleSheetSetList)
NS_IMPL_RELEASE(nsDOMStyleSheetSetList)
NS_INTERFACE_MAP_BEGIN(nsDOMStyleSheetSetList)
NS_INTERFACE_MAP_ENTRY(nsIDOMDOMStringList)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(DOMStringList)
NS_INTERFACE_MAP_END
nsDOMStyleSheetSetList::nsDOMStyleSheetSetList(nsIDocument* aDocument)
: mDocument(aDocument)
{
NS_ASSERTION(mDocument, "Must have document!");
}
NS_IMETHODIMP
nsDOMStyleSheetSetList::Item(PRUint32 aIndex, nsAString& aResult)
{
nsStringArray styleSets;
nsresult rv = GetSets(styleSets);
NS_ENSURE_SUCCESS(rv, rv);
if (aIndex >= (PRUint32)styleSets.Count()) {
SetDOMStringToNull(aResult);
} else {
styleSets.StringAt(aIndex, aResult);
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetSetList::GetLength(PRUint32 *aLength)
{
nsStringArray styleSets;
nsresult rv = GetSets(styleSets);
NS_ENSURE_SUCCESS(rv, rv);
*aLength = (PRUint32)styleSets.Count();
return NS_OK;
}
NS_IMETHODIMP
nsDOMStyleSheetSetList::Contains(const nsAString& aString, PRBool *aResult)
{
nsStringArray styleSets;
nsresult rv = GetSets(styleSets);
NS_ENSURE_SUCCESS(rv, rv);
*aResult = styleSets.IndexOf(aString) != -1;
return NS_OK;
}
nsresult
nsDOMStyleSheetSetList::GetSets(nsStringArray& aStyleSets)
{
if (!mDocument) {
return NS_OK; // Spec says "no exceptions", and we have no style sets if we
// have no document, for sure
}
PRInt32 count = mDocument->GetNumberOfStyleSheets();
nsAutoString title;
nsAutoString temp;
for (PRInt32 index = 0; index < count; index++) {
nsIStyleSheet* sheet = mDocument->GetStyleSheetAt(index);
NS_ASSERTION(sheet, "Null sheet in sheet list!");
sheet->GetTitle(title);
if (!title.IsEmpty() && aStyleSets.IndexOf(title) == -1 &&
!aStyleSets.AppendString(title)) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
return NS_OK;
}
// ==================================================================
// =
// ==================================================================
class nsDOMImplementation : public nsIDOMDOMImplementation,
public nsIPrivateDOMImplementation
{
public:
nsDOMImplementation(nsIScriptGlobalObject* aScriptObject,
nsIURI* aDocumentURI,
nsIURI* aBaseURI,
nsIPrincipal* aPrincipal);
virtual ~nsDOMImplementation();
NS_DECL_ISUPPORTS
// nsIDOMDOMImplementation
NS_DECL_NSIDOMDOMIMPLEMENTATION
// nsIPrivateDOMImplementation
NS_IMETHOD Init(nsIURI* aDocumentURI, nsIURI* aBaseURI,
nsIPrincipal* aPrincipal);
protected:
nsWeakPtr mScriptObject;
nsCOMPtr<nsIURI> mDocumentURI;
nsCOMPtr<nsIURI> mBaseURI;
nsCOMPtr<nsIPrincipal> mPrincipal;
};
nsresult
NS_NewDOMImplementation(nsIDOMDOMImplementation** aInstancePtrResult)
{
*aInstancePtrResult = new nsDOMImplementation(nsnull, nsnull, nsnull, nsnull);
if (!*aInstancePtrResult) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aInstancePtrResult);
return NS_OK;
}
nsDOMImplementation::nsDOMImplementation(nsIScriptGlobalObject* aScriptObject,
nsIURI* aDocumentURI,
nsIURI* aBaseURI,
nsIPrincipal* aPrincipal)
: mScriptObject(do_GetWeakReference(aScriptObject)),
mDocumentURI(aDocumentURI),
mBaseURI(aBaseURI),
mPrincipal(aPrincipal)
{
}
nsDOMImplementation::~nsDOMImplementation()
{
}
// QueryInterface implementation for nsDOMImplementation
NS_INTERFACE_MAP_BEGIN(nsDOMImplementation)
NS_INTERFACE_MAP_ENTRY(nsIDOMDOMImplementation)
NS_INTERFACE_MAP_ENTRY(nsIPrivateDOMImplementation)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMDOMImplementation)
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(DOMImplementation)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(nsDOMImplementation)
NS_IMPL_RELEASE(nsDOMImplementation)
NS_IMETHODIMP
nsDOMImplementation::HasFeature(const nsAString& aFeature,
const nsAString& aVersion,
PRBool* aReturn)
{
return nsGenericElement::InternalIsSupported(
static_cast<nsIDOMDOMImplementation*>(this),
aFeature, aVersion, aReturn);
}
NS_IMETHODIMP
nsDOMImplementation::CreateDocumentType(const nsAString& aQualifiedName,
const nsAString& aPublicId,
const nsAString& aSystemId,
nsIDOMDocumentType** aReturn)
{
*aReturn = nsnull;
nsresult rv = nsContentUtils::CheckQName(aQualifiedName);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIAtom> name = do_GetAtom(aQualifiedName);
NS_ENSURE_TRUE(name, NS_ERROR_OUT_OF_MEMORY);
return NS_NewDOMDocumentType(aReturn, nsnull, mPrincipal, name, nsnull,
nsnull, aPublicId, aSystemId, EmptyString());
}
NS_IMETHODIMP
nsDOMImplementation::CreateDocument(const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
nsIDOMDocumentType* aDoctype,
nsIDOMDocument** aReturn)
{
*aReturn = nsnull;
nsresult rv;
if (!aQualifiedName.IsEmpty()) {
nsIParserService *parserService = nsContentUtils::GetParserService();
NS_ENSURE_TRUE(parserService, NS_ERROR_FAILURE);
const nsAFlatString& qName = PromiseFlatString(aQualifiedName);
const PRUnichar *colon;
rv = parserService->CheckQName(qName, PR_TRUE, &colon);
NS_ENSURE_SUCCESS(rv, rv);
if (colon &&
(DOMStringIsNull(aNamespaceURI) ||
(Substring(qName.get(), colon).EqualsLiteral("xml") &&
!aNamespaceURI.EqualsLiteral("http://www.w3.org/XML/1998/namespace")))) {
return NS_ERROR_DOM_NAMESPACE_ERR;
}
}
else if (DOMStringIsNull(aQualifiedName) &&
!DOMStringIsNull(aNamespaceURI)) {
return NS_ERROR_DOM_NAMESPACE_ERR;
}
if (aDoctype) {
nsCOMPtr<nsIDOMDocument> owner;
aDoctype->GetOwnerDocument(getter_AddRefs(owner));
if (owner) {
return NS_ERROR_DOM_WRONG_DOCUMENT_ERR;
}
}
nsCOMPtr<nsIScriptGlobalObject> scriptHandlingObject =
do_QueryReferent(mScriptObject);
return nsContentUtils::CreateDocument(aNamespaceURI, aQualifiedName, aDoctype,
mDocumentURI, mBaseURI, mPrincipal,
scriptHandlingObject, aReturn);
}
NS_IMETHODIMP
nsDOMImplementation::Init(nsIURI* aDocumentURI, nsIURI* aBaseURI,
nsIPrincipal* aPrincipal)
{
// Note: can't require that the args be non-null, since at least one
// caller (XMLHttpRequest) doesn't have decent args to pass in.
mDocumentURI = aDocumentURI;
mBaseURI = aBaseURI;
mPrincipal = aPrincipal;
return NS_OK;
}
// ==================================================================
// =
// ==================================================================
// NOTE! nsDocument::operator new() zeroes out all members, so don't
// bother initializing members to 0.
nsDocument::nsDocument(const char* aContentType)
: nsIDocument(),
mVisible(PR_TRUE)
{
mContentType = aContentType;
#ifdef PR_LOGGING
if (!gDocumentLeakPRLog)
gDocumentLeakPRLog = PR_NewLogModule("DocumentLeak");
if (gDocumentLeakPRLog)
PR_LOG(gDocumentLeakPRLog, PR_LOG_DEBUG,
("DOCUMENT %p created", this));
#endif
// Start out mLastStyleSheetSet as null, per spec
SetDOMStringToNull(mLastStyleSheetSet);
}
nsDocument::~nsDocument()
{
#ifdef PR_LOGGING
if (gDocumentLeakPRLog)
PR_LOG(gDocumentLeakPRLog, PR_LOG_DEBUG,
("DOCUMENT %p destroyed", this));
#endif
#ifdef DEBUG
nsCycleCollector_DEBUG_wasFreed(static_cast<nsIDocument*>(this));
#endif
mInDestructor = PR_TRUE;
// Clear mObservers to keep it in sync with the mutationobserver list
mObservers.Clear();
if (mStyleSheetSetList) {
mStyleSheetSetList->Disconnect();
}
mParentDocument = nsnull;
// Kill the subdocument map, doing this will release its strong
// references, if any.
if (mSubDocuments) {
PL_DHashTableDestroy(mSubDocuments);
mSubDocuments = nsnull;
}
// Destroy link map now so we don't waste time removing
// links one by one
DestroyLinkMap();
PRInt32 indx; // must be signed
PRUint32 count = mChildren.ChildCount();
for (indx = PRInt32(count) - 1; indx >= 0; --indx) {
mChildren.ChildAt(indx)->UnbindFromTree();
mChildren.RemoveChildAt(indx);
}
mCachedRootContent = nsnull;
// Let the stylesheets know we're going away
indx = mStyleSheets.Count();
while (--indx >= 0) {
mStyleSheets[indx]->SetOwningDocument(nsnull);
}
indx = mCatalogSheets.Count();
while (--indx >= 0) {
mCatalogSheets[indx]->SetOwningDocument(nsnull);
}
if (mAttrStyleSheet)
mAttrStyleSheet->SetOwningDocument(nsnull);
if (mStyleAttrStyleSheet)
mStyleAttrStyleSheet->SetOwningDocument(nsnull);
if (mListenerManager) {
mListenerManager->Disconnect();
}
if (mScriptLoader) {
mScriptLoader->DropDocumentReference();
}
if (mCSSLoader) {
// Could be null here if Init() failed
mCSSLoader->DropDocumentReference();
NS_RELEASE(mCSSLoader);
}
// XXX Ideally we'd do this cleanup in the nsIDocument destructor.
if (mNodeInfoManager) {
mNodeInfoManager->DropDocumentReference();
NS_RELEASE(mNodeInfoManager);
}
if (mAttrStyleSheet) {
mAttrStyleSheet->SetOwningDocument(nsnull);
}
if (mStyleAttrStyleSheet) {
mStyleAttrStyleSheet->SetOwningDocument(nsnull);
}
if (mBindingManager) {
mBindingManager->DropDocumentReference();
NS_RELEASE(mBindingManager);
}
delete mHeaderData;
delete mBoxObjectTable;
delete mContentWrapperHash;
}
NS_IMPL_CYCLE_COLLECTION_CLASS(nsDocument)
NS_IMPL_CYCLE_COLLECTING_ADDREF_AMBIGUOUS(nsDocument, nsIDocument)
NS_IMPL_CYCLE_COLLECTING_RELEASE_AMBIGUOUS_WITH_DESTROY(nsDocument,
nsIDocument,
nsNodeUtils::LastRelease(this))
PR_STATIC_CALLBACK(PLDHashOperator)
SubDocTraverser(PLDHashTable *table, PLDHashEntryHdr *hdr, PRUint32 number,
void *arg)
{
SubDocMapEntry *entry = static_cast<SubDocMapEntry*>(hdr);
nsCycleCollectionTraversalCallback *cb =
static_cast<nsCycleCollectionTraversalCallback*>(arg);
cb->NoteXPCOMChild(entry->mKey);
cb->NoteXPCOMChild(entry->mSubDocument);
return PL_DHASH_NEXT;
}
PR_STATIC_CALLBACK(PLDHashOperator)
RadioGroupsTraverser(const nsAString& aKey, nsAutoPtr<nsRadioGroupStruct>& aData, void* aClosure)
{
nsCycleCollectionTraversalCallback *cb =
static_cast<nsCycleCollectionTraversalCallback*>(aClosure);
cb->NoteXPCOMChild(aData->mSelectedRadioButton);
PRUint32 i, count = aData->mRadioButtons.Count();
for (i = 0; i < count; ++i) {
cb->NoteXPCOMChild(aData->mRadioButtons[i]);
}
return PL_DHASH_NEXT;
}
PR_STATIC_CALLBACK(PLDHashOperator)
BoxObjectTraverser(nsISupports* key, nsPIBoxObject* boxObject, void* userArg)
{
nsCycleCollectionTraversalCallback *cb =
static_cast<nsCycleCollectionTraversalCallback*>(userArg);
cb->NoteXPCOMChild(key);
cb->NoteXPCOMChild(boxObject);
return PL_DHASH_NEXT;
}
class LinkMapTraversalVisitor : public nsUint32ToContentHashEntry::Visitor
{
public:
nsCycleCollectionTraversalCallback *mCb;
virtual void Visit(nsIContent* aContent)
{
mCb->NoteXPCOMChild(aContent);
}
};
PLDHashOperator PR_CALLBACK
LinkMapTraverser(nsUint32ToContentHashEntry* aEntry, void* userArg)
{
LinkMapTraversalVisitor visitor;
visitor.mCb = static_cast<nsCycleCollectionTraversalCallback*>(userArg);
aEntry->VisitContent(&visitor);
return PL_DHASH_NEXT;
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsDocument)
if (nsCCUncollectableMarker::InGeneration(tmp->GetMarkedCCGeneration())) {
return NS_OK;
}
// Traverse the mChildren nsAttrAndChildArray.
for (PRInt32 indx = PRInt32(tmp->mChildren.ChildCount()); indx > 0; --indx) {
cb.NoteXPCOMChild(tmp->mChildren.ChildAt(indx - 1));
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_USERDATA
// Traverse all nsIDocument pointer members.
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mCachedRootContent)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(mBindingManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mSecurityInfo)
// Traverse all nsDocument nsCOMPtrs.
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mParser)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mScriptGlobalObject)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mListenerManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mDOMStyleSheets)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mScriptLoader)
tmp->mRadioGroups.Enumerate(RadioGroupsTraverser, &cb);
// The boxobject for an element will only exist as long as it's in the
// document, so we'll traverse the table here instead of from the element.
if (tmp->mBoxObjectTable) {
tmp->mBoxObjectTable->EnumerateRead(BoxObjectTraverser, &cb);
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mChannel)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mStyleAttrStyleSheet)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mScriptEventManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mXPathEvaluatorTearoff)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mLayoutHistoryState)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mOnloadBlocker)
// An element will only be in the linkmap as long as it's in the
// document, so we'll traverse the table here instead of from the element.
if (tmp->mLinkMap.IsInitialized()) {
tmp->mLinkMap.EnumerateEntries(LinkMapTraverser, &cb);
}
// Traverse all our nsCOMArrays.
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(mStyleSheets)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(mCatalogSheets)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMARRAY(mVisitednessChangedURIs)
// Traverse any associated preserved wrapper.
cb.NoteXPCOMChild(tmp->GetReference(tmp));
if (tmp->mSubDocuments && tmp->mSubDocuments->ops) {
PL_DHashTableEnumerate(tmp->mSubDocuments, SubDocTraverser, &cb);
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsDocument)
// Tear down linkmap. This is a performance optimization so that we
// don't waste time removing links one by one as they are removed
// from the doc.
tmp->DestroyLinkMap();
// Unlink the mChildren nsAttrAndChildArray.
for (PRInt32 indx = PRInt32(tmp->mChildren.ChildCount()) - 1;
indx >= 0; --indx) {
tmp->mChildren.ChildAt(indx)->UnbindFromTree();
tmp->mChildren.RemoveChildAt(indx);
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mCachedRootContent)
NS_IMPL_CYCLE_COLLECTION_UNLINK_USERDATA
// Unlink any associated preserved wrapper.
tmp->RemoveReference(tmp);
tmp->mParentDocument = nsnull;
// nsDocument has a pretty complex destructor, so we're going to
// assume that *most* cycles you actually want to break somewhere
// else, and not unlink an awful lot here.
//
// In rare cases where you think an unlink will help here, add one
// manually.
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
nsresult
nsDocument::Init()
{
if (mBindingManager || mCSSLoader || mNodeInfoManager || mScriptLoader) {
return NS_ERROR_ALREADY_INITIALIZED;
}
mLinkMap.Init();
mRadioGroups.Init();
// Force initialization.
nsBindingManager *bindingManager = new nsBindingManager(this);
NS_ENSURE_TRUE(bindingManager, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(mBindingManager = bindingManager);
nsINode::nsSlots* slots = GetSlots();
NS_ENSURE_TRUE(slots,NS_ERROR_OUT_OF_MEMORY);
// Prepend self as mutation-observer whether we need it or not (some
// subclasses currently do, other don't). This is because the code in
// nsNodeUtils always notifies the first observer first, expecting the
// first observer to be the document.
NS_ENSURE_TRUE(slots->mMutationObservers.PrependElementUnlessExists(static_cast<nsIMutationObserver*>(this)),
NS_ERROR_OUT_OF_MEMORY);
mOnloadBlocker = new nsOnloadBlocker();
NS_ENSURE_TRUE(mOnloadBlocker, NS_ERROR_OUT_OF_MEMORY);
NS_NewCSSLoader(this, &mCSSLoader);
NS_ENSURE_TRUE(mCSSLoader, NS_ERROR_OUT_OF_MEMORY);
// Assume we're not HTML and not quirky, until we know otherwise
mCSSLoader->SetCaseSensitive(PR_TRUE);
mCSSLoader->SetCompatibilityMode(eCompatibility_FullStandards);
mNodeInfoManager = new nsNodeInfoManager();
NS_ENSURE_TRUE(mNodeInfoManager, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(mNodeInfoManager);
nsresult rv = mNodeInfoManager->Init(this);
NS_ENSURE_SUCCESS(rv, rv);
mNodeInfo = mNodeInfoManager->GetDocumentNodeInfo();
NS_ENSURE_TRUE(mNodeInfo, NS_ERROR_OUT_OF_MEMORY);
NS_ASSERTION(GetOwnerDoc() == this, "Our nodeinfo is busted!");
mScriptLoader = new nsScriptLoader(this);
NS_ENSURE_TRUE(mScriptLoader, NS_ERROR_OUT_OF_MEMORY);
return NS_OK;
}
nsresult
nsDocument::AddXMLEventsContent(nsIContent *aXMLEventsElement)
{
if (!mXMLEventsManager) {
mXMLEventsManager = new nsXMLEventsManager();
NS_ENSURE_TRUE(mXMLEventsManager, NS_ERROR_OUT_OF_MEMORY);
AddObserver(mXMLEventsManager);
}
mXMLEventsManager->AddXMLEventsContent(aXMLEventsElement);
return NS_OK;
}
void
nsDocument::Reset(nsIChannel* aChannel, nsILoadGroup* aLoadGroup)
{
nsCOMPtr<nsIURI> uri;
nsCOMPtr<nsIPrincipal> principal;
if (aChannel) {
// Note: this code is duplicated in nsXULDocument::StartDocumentLoad and
// nsScriptSecurityManager::GetChannelPrincipal.
// Note: this should match nsDocShell::OnLoadingSite
NS_GetFinalChannelURI(aChannel, getter_AddRefs(uri));
nsIScriptSecurityManager *securityManager =
nsContentUtils::GetSecurityManager();
if (securityManager) {
securityManager->GetChannelPrincipal(aChannel,
getter_AddRefs(principal));
}
}
ResetToURI(uri, aLoadGroup, principal);
mChannel = aChannel;
}
void
nsDocument::ResetToURI(nsIURI *aURI, nsILoadGroup *aLoadGroup,
nsIPrincipal* aPrincipal)
{
NS_PRECONDITION(aURI, "Null URI passed to ResetToURI");
#ifdef PR_LOGGING
if (gDocumentLeakPRLog && PR_LOG_TEST(gDocumentLeakPRLog, PR_LOG_DEBUG)) {
nsCAutoString spec;
aURI->GetSpec(spec);
PR_LogPrint("DOCUMENT %p ResetToURI %s", this, spec.get());
}
#endif
mDocumentTitle.SetIsVoid(PR_TRUE);
SetPrincipal(nsnull);
mSecurityInfo = nsnull;
mDocumentLoadGroup = nsnull;
// Delete references to sub-documents and kill the subdocument map,
// if any. It holds strong references
if (mSubDocuments) {
PL_DHashTableDestroy(mSubDocuments);
mSubDocuments = nsnull;
}
// Destroy link map now so we don't waste time removing
// links one by one
DestroyLinkMap();
PRUint32 count = mChildren.ChildCount();
for (PRInt32 i = PRInt32(count) - 1; i >= 0; i--) {
nsCOMPtr<nsIContent> content = mChildren.ChildAt(i);
nsNodeUtils::ContentRemoved(this, content, i);
content->UnbindFromTree();
mChildren.RemoveChildAt(i);
}
mCachedRootContent = nsnull;
// Reset our stylesheets
ResetStylesheetsToURI(aURI);
// Release the listener manager
if (mListenerManager) {
mListenerManager->Disconnect();
mListenerManager = nsnull;
}
// Release the stylesheets list.
mDOMStyleSheets = nsnull;
SetDocumentURI(aURI);
mDocumentBaseURI = mDocumentURI;
if (aLoadGroup) {
mDocumentLoadGroup = do_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.
}
mLastModified.Truncate();
// XXXbz I guess we're assuming that the caller will either pass in
// a channel with a useful type or call SetContentType?
mContentType.Truncate();
mContentLanguage.Truncate();
mBaseTarget.Truncate();
mReferrer.Truncate();
mXMLDeclarationBits = 0;
// Now get our new principal
if (aPrincipal) {
SetPrincipal(aPrincipal);
} else {
nsIScriptSecurityManager *securityManager =
nsContentUtils::GetSecurityManager();
if (securityManager) {
nsCOMPtr<nsIPrincipal> principal;
nsresult rv =
securityManager->GetCodebasePrincipal(mDocumentURI,
getter_AddRefs(principal));
if (NS_SUCCEEDED(rv)) {
SetPrincipal(principal);
}
}
}
}
nsresult
nsDocument::ResetStylesheetsToURI(nsIURI* aURI)
{
NS_PRECONDITION(aURI, "Null URI passed to ResetStylesheetsToURI");
mozAutoDocUpdate upd(this, UPDATE_STYLE, PR_TRUE);
// The stylesheets should forget us
PRInt32 indx = mStyleSheets.Count();
while (--indx >= 0) {
nsIStyleSheet* sheet = mStyleSheets[indx];
sheet->SetOwningDocument(nsnull);
PRBool applicable;
sheet->GetApplicable(applicable);
if (applicable) {
RemoveStyleSheetFromStyleSets(sheet);
}
// XXX Tell observers?
}
indx = mCatalogSheets.Count();
while (--indx >= 0) {
nsIStyleSheet* sheet = mCatalogSheets[indx];
sheet->SetOwningDocument(nsnull);
PRBool applicable;
sheet->GetApplicable(applicable);
if (applicable) {
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
shell->StyleSet()->RemoveStyleSheet(nsStyleSet::eAgentSheet, sheet);
}
}
// XXX Tell observers?
}
// Release all the sheets
mStyleSheets.Clear();
// NOTE: We don't release the catalog sheets. It doesn't really matter
// now, but it could in the future -- in which case not releasing them
// is probably the right thing to do.
// Now reset our inline style and attribute sheets.
nsresult rv;
nsStyleSet::sheetType attrSheetType = GetAttrSheetType();
if (mAttrStyleSheet) {
// Remove this sheet from all style sets
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
shell->StyleSet()->RemoveStyleSheet(attrSheetType, mAttrStyleSheet);
}
rv = mAttrStyleSheet->Reset(aURI);
} else {
rv = NS_NewHTMLStyleSheet(getter_AddRefs(mAttrStyleSheet), aURI, this);
}
NS_ENSURE_SUCCESS(rv, rv);
// Don't use AddStyleSheet, since it'll put the sheet into style
// sets in the document level, which is not desirable here.
mAttrStyleSheet->SetOwningDocument(this);
if (mStyleAttrStyleSheet) {
// Remove this sheet from all style sets
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
shell->StyleSet()->
RemoveStyleSheet(nsStyleSet::eStyleAttrSheet, mStyleAttrStyleSheet);
}
rv = mStyleAttrStyleSheet->Reset(aURI);
} else {
rv = NS_NewHTMLCSSStyleSheet(getter_AddRefs(mStyleAttrStyleSheet), aURI,
this);
}
NS_ENSURE_SUCCESS(rv, rv);
// The loop over style sets below will handle putting this sheet
// into style sets as needed.
mStyleAttrStyleSheet->SetOwningDocument(this);
// Now set up our style sets
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
FillStyleSet(shell->StyleSet());
}
return rv;
}
nsStyleSet::sheetType
nsDocument::GetAttrSheetType()
{
return nsStyleSet::ePresHintSheet;
}
void
nsDocument::FillStyleSet(nsStyleSet* aStyleSet)
{
NS_PRECONDITION(aStyleSet, "Must have a style set");
NS_PRECONDITION(aStyleSet->SheetCount(nsStyleSet::ePresHintSheet) == 0,
"Style set already has a preshint sheet?");
NS_PRECONDITION(aStyleSet->SheetCount(nsStyleSet::eHTMLPresHintSheet) == 0,
"Style set already has a HTML preshint sheet?");
NS_PRECONDITION(aStyleSet->SheetCount(nsStyleSet::eDocSheet) == 0,
"Style set already has document sheets?");
NS_PRECONDITION(aStyleSet->SheetCount(nsStyleSet::eStyleAttrSheet) == 0,
"Style set already has style attr sheets?");
NS_PRECONDITION(mStyleAttrStyleSheet, "No style attr stylesheet?");
NS_PRECONDITION(mAttrStyleSheet, "No attr stylesheet?");
aStyleSet->AppendStyleSheet(GetAttrSheetType(), mAttrStyleSheet);
aStyleSet->AppendStyleSheet(nsStyleSet::eStyleAttrSheet,
mStyleAttrStyleSheet);
PRInt32 i;
for (i = mStyleSheets.Count() - 1; i >= 0; --i) {
nsIStyleSheet* sheet = mStyleSheets[i];
PRBool sheetApplicable;
sheet->GetApplicable(sheetApplicable);
if (sheetApplicable) {
aStyleSet->AddDocStyleSheet(sheet, this);
}
}
for (i = mCatalogSheets.Count() - 1; i >= 0; --i) {
nsIStyleSheet* sheet = mCatalogSheets[i];
PRBool sheetApplicable;
sheet->GetApplicable(sheetApplicable);
if (sheetApplicable) {
aStyleSet->AppendStyleSheet(nsStyleSet::eAgentSheet, sheet);
}
}
}
nsresult
nsDocument::StartDocumentLoad(const char* aCommand, nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener **aDocListener,
PRBool aReset, nsIContentSink* aSink)
{
#ifdef PR_LOGGING
if (gDocumentLeakPRLog && PR_LOG_TEST(gDocumentLeakPRLog, PR_LOG_DEBUG)) {
nsCOMPtr<nsIURI> uri;
aChannel->GetURI(getter_AddRefs(uri));
nsCAutoString spec;
if (uri)
uri->GetSpec(spec);
PR_LogPrint("DOCUMENT %p StartDocumentLoad %s", this, spec.get());
}
#endif
if (nsCRT::strcmp(kLoadAsData, aCommand) == 0) {
mLoadedAsData = PR_TRUE;
// We need to disable script & style loading in this case.
// We leave them disabled even in EndLoad(), and let anyone
// who puts the document on display to worry about enabling.
// Do not load/process scripts when loading as data
ScriptLoader()->SetEnabled(PR_FALSE);
// styles
CSSLoader()->SetEnabled(PR_FALSE); // Do not load/process styles when loading as data
}
mMayStartLayout = PR_FALSE;
if (aReset) {
Reset(aChannel, aLoadGroup);
}
nsCAutoString contentType;
if (NS_SUCCEEDED(aChannel->GetContentType(contentType))) {
// XXX this is only necessary for viewsource:
nsACString::const_iterator start, end, semicolon;
contentType.BeginReading(start);
contentType.EndReading(end);
semicolon = start;
FindCharInReadable(';', semicolon, end);
mContentType = Substring(start, semicolon);
}
RetrieveRelevantHeaders(aChannel);
mChannel = aChannel;
return NS_OK;
}
void
nsDocument::StopDocumentLoad()
{
if (mParser) {
mParser->Terminate();
}
}
void
nsDocument::SetDocumentURI(nsIURI* aURI)
{
mDocumentURI = NS_TryToMakeImmutable(aURI);
}
NS_IMETHODIMP
nsDocument::GetLastModified(nsAString& aLastModified)
{
if (!mLastModified.IsEmpty()) {
aLastModified.Assign(mLastModified);
} else {
// If we for whatever reason failed to find the last modified time
// (or even the current time), fall back to what NS4.x returned.
aLastModified.Assign(NS_LITERAL_STRING("01/01/1970 00:00:00"));
}
return NS_OK;
}
nsIPrincipal*
nsDocument::GetPrincipal()
{
return NodePrincipal();
}
void
nsDocument::SetPrincipal(nsIPrincipal *aNewPrincipal)
{
mNodeInfoManager->SetDocumentPrincipal(aNewPrincipal);
}
NS_IMETHODIMP
nsDocument::GetContentType(nsAString& aContentType)
{
CopyUTF8toUTF16(mContentType, aContentType);
return NS_OK;
}
void
nsDocument::SetContentType(const nsAString& aContentType)
{
NS_ASSERTION(mContentType.IsEmpty() ||
mContentType.Equals(NS_ConvertUTF16toUTF8(aContentType)),
"Do you really want to change the content-type?");
CopyUTF16toUTF8(aContentType, mContentType);
}
/* Return true if the document is in the focused top-level window, and is an
* ancestor of the focused DOMWindow. */
NS_IMETHODIMP
nsDocument::HasFocus(PRBool* aResult)
{
*aResult = PR_FALSE;
nsPIDOMWindow* window = GetWindow();
nsIFocusController* focusController = window ?
window->GetRootFocusController() : nsnull;
if (!focusController) {
return NS_OK;
}
// Does the top-level window have focus?
PRBool active;
nsresult rv = focusController->GetActive(&active);
NS_ENSURE_SUCCESS(rv, rv);
if (!active){
return NS_OK;
}
// Is there a focused DOMWindow?
nsCOMPtr<nsIDOMWindowInternal> focusedWindow;
rv = focusController->GetFocusedWindow(getter_AddRefs(focusedWindow));
NS_ENSURE_SUCCESS(rv, rv);
if (!focusedWindow) {
return NS_ERROR_FAILURE;
}
// Are we an ancestor of the focused DOMWindow?
nsCOMPtr<nsIDOMDocument> domDocument;
focusedWindow->GetDocument(getter_AddRefs(domDocument));
nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
for (nsIDocument* currentDoc = document; currentDoc;
currentDoc = currentDoc->GetParentDocument()) {
if (currentDoc == this) {
// Yes, we are an ancestor
*aResult = PR_TRUE;
return NS_OK;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetReferrer(nsAString& aReferrer)
{
CopyUTF8toUTF16(mReferrer, aReferrer);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetActiveElement(nsIDOMElement **aElement)
{
*aElement = nsnull;
// Get the focused element.
nsPIDOMWindow* window = GetWindow();
if (!window) {
return NS_ERROR_NOT_AVAILABLE;
}
nsIFocusController* focusController = window->GetRootFocusController();
if (!focusController) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDOMElement> focusedElement;
focusController->GetFocusedElement(getter_AddRefs(focusedElement));
nsCOMPtr<nsIContent> content = do_QueryInterface(focusedElement);
if (content) {
// Found a focused element. See if it's in this document.
nsIDocument* currentDoc = content->GetCurrentDoc();
if (currentDoc == this) {
focusedElement.swap(*aElement);
return NS_OK;
}
// Not in this document. If it's in a child document, return the iframe in
// this document that's an ancestor of the child.
if (currentDoc) {
*aElement = CheckAncestryAndGetFrame(currentDoc).get();
if (*aElement) {
return NS_OK;
}
}
}
// Couldn't find a focused element. Check if something like an IFRAME is
// focused, which will give us a focused window rather than a focused
// element.
nsCOMPtr<nsIDOMWindowInternal> focusedWindow;
focusController->GetFocusedWindow(getter_AddRefs(focusedWindow));
if (focusedWindow) {
// Found a focused window. See if it's in a child of this document. (If
// the window's document is this, then we should just fall through to
// returning the BODY below).
nsCOMPtr<nsIDOMDocument> domDocument;
focusedWindow->GetDocument(getter_AddRefs(domDocument));
nsCOMPtr<nsIDocument> document = do_QueryInterface(domDocument);
if (document && (document != this)) {
*aElement = CheckAncestryAndGetFrame(document).get();
if (*aElement) {
return NS_OK;
}
}
}
// No focused element anywhere in this document. Try to get the BODY.
nsCOMPtr<nsIDOMHTMLDocument> htmlDoc =
do_QueryInterface(static_cast<nsIDocument*>(this));
if (htmlDoc) {
nsCOMPtr<nsIDOMHTMLElement> bodyElement;
htmlDoc->GetBody(getter_AddRefs(bodyElement));
if (bodyElement) {
*aElement = bodyElement;
NS_ADDREF(*aElement);
}
// Because of IE compatibility, return null when html document doesn't have
// a body.
return NS_OK;
}
// If we couldn't get a BODY, return the root element.
return GetDocumentElement(aElement);
}
NS_IMETHODIMP
nsDocument::ElementFromPoint(PRInt32 aX, PRInt32 aY, nsIDOMElement** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
// As per the the spec, we return null if either coord is negative
if (aX < 0 || aY < 0)
return NS_OK;
nscoord x = nsPresContext::CSSPixelsToAppUnits(aX);
nscoord y = nsPresContext::CSSPixelsToAppUnits(aY);
nsPoint pt(x, y);
// Make sure the layout information we get is up-to-date, and
// ensure we get a root frame (for everything but XUL)
FlushPendingNotifications(Flush_Layout);
nsIPresShell *ps = GetPrimaryShell();
NS_ENSURE_STATE(ps);
nsIFrame *rootFrame = ps->GetRootFrame();
// XUL docs, unlike HTML, have no frame tree until everything's done loading
if (!rootFrame)
return NS_OK; // return null to premature XUL callers as a reminder to wait
nsIFrame *ptFrame = nsLayoutUtils::GetFrameForPoint(rootFrame, pt, PR_TRUE);
if (!ptFrame)
return NS_OK;
nsIContent* ptContent = ptFrame->GetContent();
NS_ENSURE_STATE(ptContent);
// If the content is in a subdocument, try to get the element from |this| doc
nsIDocument *currentDoc = ptContent->GetCurrentDoc();
if (currentDoc && (currentDoc != this)) {
*aReturn = CheckAncestryAndGetFrame(currentDoc).get();
return NS_OK;
}
// If we have an anonymous element (such as an internal div from a textbox),
// or a node that isn't an element (such as a text frame node),
// replace it with the first non-anonymous parent node of type element.
while (ptContent &&
!ptContent->IsNodeOfType(nsINode::eELEMENT) ||
ptContent->GetBindingParent() ||
ptContent->IsNativeAnonymous()) {
ptContent = ptContent->GetParent();
}
if (ptContent)
CallQueryInterface(ptContent, aReturn);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetElementsByClassName(const nsAString& aClasses,
nsIDOMNodeList** aReturn)
{
return GetElementsByClassNameHelper(this, aClasses, aReturn);
}
// static GetElementsByClassName helpers
nsresult
nsDocument::GetElementsByClassNameHelper(nsINode* aRootNode,
const nsAString& aClasses,
nsIDOMNodeList** aReturn)
{
NS_PRECONDITION(aRootNode, "Must have root node");
nsAttrValue attrValue;
attrValue.ParseAtomArray(aClasses);
// nsAttrValue::Equals is sensitive to order, so we'll send an array
nsCOMArray<nsIAtom>* classes = new nsCOMArray<nsIAtom>;
NS_ENSURE_TRUE(classes, NS_ERROR_OUT_OF_MEMORY);
if (attrValue.Type() == nsAttrValue::eAtomArray) {
classes->AppendObjects(*(attrValue.GetAtomArrayValue()));
} else if (!attrValue.IsEmptyString()) {
classes->AppendObject(attrValue.GetAtomValue());
}
nsBaseContentList* elements;
if (classes->Count() > 0) {
elements = new nsContentList(aRootNode, MatchClassNames,
DestroyClassNameArray, classes);
} else {
delete classes;
classes = nsnull;
elements = new nsBaseContentList();
}
if (!elements) {
delete classes;
return NS_ERROR_OUT_OF_MEMORY;
}
*aReturn = elements;
NS_ADDREF(*aReturn);
return NS_OK;
}
// static
PRBool
nsDocument::MatchClassNames(nsIContent* aContent,
PRInt32 aNamespaceID,
nsIAtom* aAtom, void* aData)
{
// We can't match if there are no class names
const nsAttrValue* classAttr = aContent->GetClasses();
if (!classAttr) {
return PR_FALSE;
}
// need to match *all* of the classes
nsCOMArray<nsIAtom>* classes = static_cast<nsCOMArray<nsIAtom>*>(aData);
PRInt32 length = classes->Count();
PRInt32 i;
for (i = 0; i < length; ++i) {
if (!classAttr->Contains(classes->ObjectAt(i), eCaseMatters)) {
return PR_FALSE;
}
}
return PR_TRUE;
}
// static
void
nsDocument::DestroyClassNameArray(void* aData)
{
nsCOMArray<nsIAtom>* classes = static_cast<nsCOMArray<nsIAtom>*>(aData);
delete classes;
}
nsresult
nsDocument::SetBaseURI(nsIURI* aURI)
{
nsresult rv = NS_OK;
if (aURI) {
rv = nsContentUtils::GetSecurityManager()->
CheckLoadURIWithPrincipal(NodePrincipal(), aURI,
nsIScriptSecurityManager::STANDARD);
if (NS_SUCCEEDED(rv)) {
mDocumentBaseURI = NS_TryToMakeImmutable(aURI);
}
} else {
mDocumentBaseURI = nsnull;
}
return rv;
}
void
nsDocument::GetBaseTarget(nsAString &aBaseTarget) const
{
aBaseTarget.Assign(mBaseTarget);
}
void
nsDocument::SetBaseTarget(const nsAString &aBaseTarget)
{
mBaseTarget.Assign(aBaseTarget);
}
void
nsDocument::SetDocumentCharacterSet(const nsACString& aCharSetID)
{
if (!mCharacterSet.Equals(aCharSetID)) {
mCharacterSet = aCharSetID;
#ifdef DEBUG
nsCOMPtr<nsICharsetAlias> calias(do_GetService(NS_CHARSETALIAS_CONTRACTID));
if (calias) {
nsCAutoString canonicalName;
calias->GetPreferred(aCharSetID, canonicalName);
NS_ASSERTION(canonicalName.Equals(aCharSetID),
"charset name must be canonical");
}
#endif
PRInt32 n = mCharSetObservers.Count();
for (PRInt32 i = 0; i < n; i++) {
nsIObserver* observer =
static_cast<nsIObserver *>(mCharSetObservers.ElementAt(i));
observer->Observe(static_cast<nsIDocument *>(this), "charset",
NS_ConvertASCIItoUTF16(aCharSetID).get());
}
}
}
nsresult
nsDocument::AddCharSetObserver(nsIObserver* aObserver)
{
NS_ENSURE_ARG_POINTER(aObserver);
NS_ENSURE_TRUE(mCharSetObservers.AppendElement(aObserver), NS_ERROR_FAILURE);
return NS_OK;
}
void
nsDocument::RemoveCharSetObserver(nsIObserver* aObserver)
{
mCharSetObservers.RemoveElement(aObserver);
}
void
nsDocument::GetHeaderData(nsIAtom* aHeaderField, nsAString& aData) const
{
aData.Truncate();
const nsDocHeaderData* data = mHeaderData;
while (data) {
if (data->mField == aHeaderField) {
aData = data->mData;
break;
}
data = data->mNext;
}
}
void
nsDocument::SetHeaderData(nsIAtom* aHeaderField, const nsAString& aData)
{
if (!aHeaderField) {
NS_ERROR("null headerField");
return;
}
if (!mHeaderData) {
if (!aData.IsEmpty()) { // don't bother storing empty string
mHeaderData = new nsDocHeaderData(aHeaderField, aData);
}
}
else {
nsDocHeaderData* data = mHeaderData;
nsDocHeaderData** lastPtr = &mHeaderData;
PRBool found = PR_FALSE;
do { // look for existing and replace
if (data->mField == aHeaderField) {
if (!aData.IsEmpty()) {
data->mData.Assign(aData);
}
else { // don't store empty string
*lastPtr = data->mNext;
data->mNext = nsnull;
delete data;
}
found = PR_TRUE;
break;
}
lastPtr = &(data->mNext);
data = *lastPtr;
} while (data);
if (!aData.IsEmpty() && !found) {
// didn't find, append
*lastPtr = new nsDocHeaderData(aHeaderField, aData);
}
}
if (aHeaderField == nsGkAtoms::headerContentLanguage) {
CopyUTF16toUTF8(aData, mContentLanguage);
}
// Set the default script-type on the root element.
if (aHeaderField == nsGkAtoms::headerContentScriptType) {
nsIContent *root = GetRootContent();
if (root) {
// Get the script-type ID for this value.
nsresult rv;
nsCOMPtr<nsIScriptRuntime> runtime;
rv = NS_GetScriptRuntime(aData, getter_AddRefs(runtime));
if (NS_FAILED(rv) || runtime == nsnull) {
NS_WARNING("The script-type is unknown");
} else {
root->SetScriptTypeID(runtime->GetScriptTypeID());
}
}
}
if (aHeaderField == nsGkAtoms::headerDefaultStyle) {
// Only mess with our stylesheets if we don't have a lastStyleSheetSet, per
// spec.
if (DOMStringIsNull(mLastStyleSheetSet)) {
// Calling EnableStyleSheetsForSetInternal, not SetSelectedStyleSheetSet,
// per spec. The idea here is that we're changing our preferred set and
// that shouldn't change the value of lastStyleSheetSet. Also, we're
// using the Internal version so we can update the CSSLoader and not have
// to worry about null strings.
EnableStyleSheetsForSetInternal(aData, PR_TRUE);
}
}
if (aHeaderField == nsGkAtoms::refresh) {
// We get into this code before we have a script global yet, so get to
// our container via mDocumentContainer.
nsCOMPtr<nsIRefreshURI> refresher = do_QueryReferent(mDocumentContainer);
if (refresher) {
// Note: using mDocumentURI instead of mBaseURI here, for consistency
// (used to just use the current URI of our webnavigation, but that
// should really be the same thing). Note that this code can run
// before the current URI of the webnavigation has been updated, so we
// can't assert equality here.
refresher->SetupRefreshURIFromHeader(mDocumentURI,
NS_ConvertUTF16toUTF8(aData));
}
}
}
PRBool
nsDocument::TryChannelCharset(nsIChannel *aChannel,
PRInt32& aCharsetSource,
nsACString& aCharset)
{
if(kCharsetFromChannel <= aCharsetSource) {
return PR_TRUE;
}
if (aChannel) {
nsCAutoString charsetVal;
nsresult rv = aChannel->GetContentCharset(charsetVal);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsICharsetAlias> calias(do_GetService(NS_CHARSETALIAS_CONTRACTID));
if (calias) {
nsCAutoString preferred;
rv = calias->GetPreferred(charsetVal,
preferred);
if(NS_SUCCEEDED(rv)) {
aCharset = preferred;
aCharsetSource = kCharsetFromChannel;
return PR_TRUE;
}
}
}
}
return PR_FALSE;
}
nsresult
nsDocument::CreateShell(nsPresContext* aContext, nsIViewManager* aViewManager,
nsStyleSet* aStyleSet,
nsIPresShell** aInstancePtrResult)
{
// Don't add anything here. Add it to |doCreateShell| instead.
// This exists so that subclasses can pass other values for the 4th
// parameter some of the time.
return doCreateShell(aContext, aViewManager, aStyleSet,
eCompatibility_FullStandards, aInstancePtrResult);
}
nsresult
nsDocument::doCreateShell(nsPresContext* aContext,
nsIViewManager* aViewManager, nsStyleSet* aStyleSet,
nsCompatibility aCompatMode,
nsIPresShell** aInstancePtrResult)
{
*aInstancePtrResult = nsnull;
NS_ENSURE_FALSE(mShellsAreHidden, NS_ERROR_FAILURE);
FillStyleSet(aStyleSet);
nsCOMPtr<nsIPresShell> shell;
nsresult rv = NS_NewPresShell(getter_AddRefs(shell));
if (NS_FAILED(rv)) {
return rv;
}
rv = shell->Init(this, aContext, aViewManager, aStyleSet, aCompatMode);
NS_ENSURE_SUCCESS(rv, rv);
// Note: we don't hold a ref to the shell (it holds a ref to us)
NS_ENSURE_TRUE(mPresShells.AppendElementUnlessExists(shell),
NS_ERROR_OUT_OF_MEMORY);
shell.swap(*aInstancePtrResult);
return NS_OK;
}
PRBool
nsDocument::DeleteShell(nsIPresShell* aShell)
{
return mPresShells.RemoveElement(aShell);
}
nsIPresShell *
nsDocument::GetPrimaryShell() const
{
return mShellsAreHidden ? nsnull : mPresShells.SafeElementAt(0, nsnull);
}
PR_STATIC_CALLBACK(void)
SubDocClearEntry(PLDHashTable *table, PLDHashEntryHdr *entry)
{
SubDocMapEntry *e = static_cast<SubDocMapEntry *>(entry);
NS_RELEASE(e->mKey);
if (e->mSubDocument) {
e->mSubDocument->SetParentDocument(nsnull);
NS_RELEASE(e->mSubDocument);
}
}
PR_STATIC_CALLBACK(PRBool)
SubDocInitEntry(PLDHashTable *table, PLDHashEntryHdr *entry, const void *key)
{
SubDocMapEntry *e =
const_cast<SubDocMapEntry *>
(static_cast<const SubDocMapEntry *>(entry));
e->mKey = const_cast<nsIContent *>
(static_cast<const nsIContent *>(key));
NS_ADDREF(e->mKey);
e->mSubDocument = nsnull;
return PR_TRUE;
}
nsresult
nsDocument::SetSubDocumentFor(nsIContent *aContent, nsIDocument* aSubDoc)
{
NS_ENSURE_TRUE(aContent, NS_ERROR_UNEXPECTED);
if (!aSubDoc) {
// aSubDoc is nsnull, remove the mapping
if (mSubDocuments) {
SubDocMapEntry *entry =
static_cast<SubDocMapEntry*>
(PL_DHashTableOperate(mSubDocuments, aContent,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_BUSY(entry)) {
PL_DHashTableRawRemove(mSubDocuments, entry);
}
}
} else {
if (!mSubDocuments) {
// Create a new hashtable
static PLDHashTableOps hash_table_ops =
{
PL_DHashAllocTable,
PL_DHashFreeTable,
PL_DHashVoidPtrKeyStub,
PL_DHashMatchEntryStub,
PL_DHashMoveEntryStub,
SubDocClearEntry,
PL_DHashFinalizeStub,
SubDocInitEntry
};
mSubDocuments = PL_NewDHashTable(&hash_table_ops, nsnull,
sizeof(SubDocMapEntry), 16);
if (!mSubDocuments) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
// Add a mapping to the hash table
SubDocMapEntry *entry =
static_cast<SubDocMapEntry*>
(PL_DHashTableOperate(mSubDocuments, aContent,
PL_DHASH_ADD));
if (!entry) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (entry->mSubDocument) {
entry->mSubDocument->SetParentDocument(nsnull);
// Release the old sub document
NS_RELEASE(entry->mSubDocument);
}
entry->mSubDocument = aSubDoc;
NS_ADDREF(entry->mSubDocument);
aSubDoc->SetParentDocument(this);
}
return NS_OK;
}
nsIDocument*
nsDocument::GetSubDocumentFor(nsIContent *aContent) const
{
if (mSubDocuments) {
SubDocMapEntry *entry =
static_cast<SubDocMapEntry*>
(PL_DHashTableOperate(mSubDocuments, aContent,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_BUSY(entry)) {
return entry->mSubDocument;
}
}
return nsnull;
}
PR_STATIC_CALLBACK(PLDHashOperator)
FindContentEnumerator(PLDHashTable *table, PLDHashEntryHdr *hdr,
PRUint32 number, void *arg)
{
SubDocMapEntry *entry = static_cast<SubDocMapEntry*>(hdr);
FindContentData *data = static_cast<FindContentData*>(arg);
if (entry->mSubDocument == data->mSubDocument) {
data->mResult = entry->mKey;
return PL_DHASH_STOP;
}
return PL_DHASH_NEXT;
}
nsIContent*
nsDocument::FindContentForSubDocument(nsIDocument *aDocument) const
{
NS_ENSURE_TRUE(aDocument, nsnull);
if (!mSubDocuments) {
return nsnull;
}
FindContentData data(aDocument);
PL_DHashTableEnumerate(mSubDocuments, FindContentEnumerator, &data);
return data.mResult;
}
PRBool
nsDocument::IsNodeOfType(PRUint32 aFlags) const
{
return !(aFlags & ~eDOCUMENT);
}
nsIContent*
nsDocument::GetRootContentInternal() const
{
// Loop backwards because any non-elements, such as doctypes and PIs
// are likely to appear before the root element.
PRUint32 i;
for (i = mChildren.ChildCount(); i > 0; --i) {
nsIContent* child = mChildren.ChildAt(i - 1);
if (child->IsNodeOfType(nsINode::eELEMENT)) {
const_cast<nsDocument*>(this)->mCachedRootContent = child;
return child;
}
}
const_cast<nsDocument*>(this)->mCachedRootContent = nsnull;
return nsnull;
}
nsIContent *
nsDocument::GetChildAt(PRUint32 aIndex) const
{
return mChildren.GetSafeChildAt(aIndex);
}
PRInt32
nsDocument::IndexOf(nsINode* aPossibleChild) const
{
return mChildren.IndexOfChild(aPossibleChild);
}
PRUint32
nsDocument::GetChildCount() const
{
return mChildren.ChildCount();
}
nsresult
nsDocument::InsertChildAt(nsIContent* aKid, PRUint32 aIndex,
PRBool aNotify)
{
if (aKid->IsNodeOfType(nsINode::eELEMENT) &&
GetRootContent()) {
NS_ERROR("Inserting element child when we already have one");
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
return nsGenericElement::doInsertChildAt(aKid, aIndex, aNotify,
nsnull, this, mChildren);
}
nsresult
nsDocument::AppendChildTo(nsIContent* aKid, PRBool aNotify)
{
// Make sure to _not_ call the subclass InsertChildAt here. If
// subclasses wanted to hook into this stuff, they would have
// overridden AppendChildTo.
// XXXbz maybe this should just be a non-virtual method on nsINode?
// Feels that way to me...
return nsDocument::InsertChildAt(aKid, GetChildCount(), aNotify);
}
nsresult
nsDocument::RemoveChildAt(PRUint32 aIndex, PRBool aNotify)
{
nsCOMPtr<nsIContent> oldKid = GetChildAt(aIndex);
if (!oldKid) {
return NS_OK;
}
if (oldKid->IsNodeOfType(nsINode::eELEMENT)) {
// Destroy the link map up front before we mess with the child list.
DestroyLinkMap();
}
nsresult rv = nsGenericElement::doRemoveChildAt(aIndex, aNotify, oldKid,
nsnull, this, mChildren);
mCachedRootContent = nsnull;
return rv;
}
PRInt32
nsDocument::GetNumberOfStyleSheets() const
{
return mStyleSheets.Count();
}
nsIStyleSheet*
nsDocument::GetStyleSheetAt(PRInt32 aIndex) const
{
NS_ENSURE_TRUE(0 <= aIndex && aIndex < mStyleSheets.Count(), nsnull);
return mStyleSheets[aIndex];
}
PRInt32
nsDocument::GetIndexOfStyleSheet(nsIStyleSheet* aSheet) const
{
return mStyleSheets.IndexOf(aSheet);
}
void
nsDocument::AddStyleSheetToStyleSets(nsIStyleSheet* aSheet)
{
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
shell->StyleSet()->AddDocStyleSheet(aSheet, this);
}
}
void
nsDocument::AddStyleSheet(nsIStyleSheet* aSheet)
{
NS_PRECONDITION(aSheet, "null arg");
mStyleSheets.AppendObject(aSheet);
aSheet->SetOwningDocument(this);
PRBool applicable;
aSheet->GetApplicable(applicable);
if (applicable) {
AddStyleSheetToStyleSets(aSheet);
}
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleSheetAdded, (this, aSheet, PR_TRUE));
}
void
nsDocument::RemoveStyleSheetFromStyleSets(nsIStyleSheet* aSheet)
{
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
shell->StyleSet()->RemoveStyleSheet(nsStyleSet::eDocSheet, aSheet);
}
}
void
nsDocument::RemoveStyleSheet(nsIStyleSheet* aSheet)
{
NS_PRECONDITION(aSheet, "null arg");
nsCOMPtr<nsIStyleSheet> sheet = aSheet; // hold ref so it won't die too soon
if (!mStyleSheets.RemoveObject(aSheet)) {
NS_NOTREACHED("stylesheet not found");
return;
}
if (!mIsGoingAway) {
PRBool applicable = PR_TRUE;
aSheet->GetApplicable(applicable);
if (applicable) {
RemoveStyleSheetFromStyleSets(aSheet);
}
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleSheetRemoved, (this, aSheet, PR_TRUE));
}
aSheet->SetOwningDocument(nsnull);
}
void
nsDocument::UpdateStyleSheets(nsCOMArray<nsIStyleSheet>& aOldSheets,
nsCOMArray<nsIStyleSheet>& aNewSheets)
{
BeginUpdate(UPDATE_STYLE);
// XXX Need to set the sheet on the ownernode, if any
NS_PRECONDITION(aOldSheets.Count() == aNewSheets.Count(),
"The lists must be the same length!");
PRInt32 count = aOldSheets.Count();
nsCOMPtr<nsIStyleSheet> oldSheet;
PRInt32 i;
for (i = 0; i < count; ++i) {
oldSheet = aOldSheets[i];
// First remove the old sheet.
NS_ASSERTION(oldSheet, "None of the old sheets should be null");
PRInt32 oldIndex = mStyleSheets.IndexOf(oldSheet);
RemoveStyleSheet(oldSheet); // This does the right notifications
// Now put the new one in its place. If it's null, just ignore it.
nsIStyleSheet* newSheet = aNewSheets[i];
if (newSheet) {
mStyleSheets.InsertObjectAt(newSheet, oldIndex);
newSheet->SetOwningDocument(this);
PRBool applicable = PR_TRUE;
newSheet->GetApplicable(applicable);
if (applicable) {
AddStyleSheetToStyleSets(newSheet);
}
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleSheetAdded, (this, newSheet, PR_TRUE));
}
}
EndUpdate(UPDATE_STYLE);
}
void
nsDocument::InsertStyleSheetAt(nsIStyleSheet* aSheet, PRInt32 aIndex)
{
NS_PRECONDITION(aSheet, "null ptr");
mStyleSheets.InsertObjectAt(aSheet, aIndex);
aSheet->SetOwningDocument(this);
PRBool applicable;
aSheet->GetApplicable(applicable);
if (applicable) {
AddStyleSheetToStyleSets(aSheet);
}
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleSheetAdded, (this, aSheet, PR_TRUE));
}
void
nsDocument::SetStyleSheetApplicableState(nsIStyleSheet* aSheet,
PRBool aApplicable)
{
NS_PRECONDITION(aSheet, "null arg");
// If we're actually in the document style sheet list
if (-1 != mStyleSheets.IndexOf(aSheet)) {
if (aApplicable) {
AddStyleSheetToStyleSets(aSheet);
} else {
RemoveStyleSheetFromStyleSets(aSheet);
}
}
// We have to always notify, since this will be called for sheets
// that are children of sheets in our style set, as well as some
// sheets for nsHTMLEditor.
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleSheetApplicableStateChanged,
(this, aSheet, aApplicable));
}
// These three functions are a lot like the implementation of the
// corresponding API for regular stylesheets.
PRInt32
nsDocument::GetNumberOfCatalogStyleSheets() const
{
return mCatalogSheets.Count();
}
nsIStyleSheet*
nsDocument::GetCatalogStyleSheetAt(PRInt32 aIndex) const
{
NS_ENSURE_TRUE(0 <= aIndex && aIndex < mCatalogSheets.Count(), nsnull);
return mCatalogSheets[aIndex];
}
void
nsDocument::AddCatalogStyleSheet(nsIStyleSheet* aSheet)
{
mCatalogSheets.AppendObject(aSheet);
aSheet->SetOwningDocument(this);
PRBool applicable;
aSheet->GetApplicable(applicable);
if (applicable) {
// This is like |AddStyleSheetToStyleSets|, but for an agent sheet.
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
shell->StyleSet()->AppendStyleSheet(nsStyleSet::eAgentSheet, aSheet);
}
}
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleSheetAdded, (this, aSheet, PR_FALSE));
}
void
nsDocument::EnsureCatalogStyleSheet(const char *aStyleSheetURI)
{
nsICSSLoader* cssLoader = CSSLoader();
PRBool enabled;
if (NS_SUCCEEDED(cssLoader->GetEnabled(&enabled)) && enabled) {
PRInt32 sheetCount = GetNumberOfCatalogStyleSheets();
for (PRInt32 i = 0; i < sheetCount; i++) {
nsIStyleSheet* sheet = GetCatalogStyleSheetAt(i);
NS_ASSERTION(sheet, "unexpected null stylesheet in the document");
if (sheet) {
nsCOMPtr<nsIURI> uri;
sheet->GetSheetURI(getter_AddRefs(uri));
nsCAutoString uriStr;
uri->GetSpec(uriStr);
if (uriStr.Equals(aStyleSheetURI))
return;
}
}
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), aStyleSheetURI);
if (uri) {
nsCOMPtr<nsICSSStyleSheet> sheet;
cssLoader->LoadSheetSync(uri, PR_TRUE, getter_AddRefs(sheet));
if (sheet) {
BeginUpdate(UPDATE_STYLE);
AddCatalogStyleSheet(sheet);
EndUpdate(UPDATE_STYLE);
}
}
}
}
nsIScriptGlobalObject*
nsDocument::GetScriptGlobalObject() const
{
// If we're going away, we've already released the reference to our
// ScriptGlobalObject. We can, however, try to obtain it for the
// caller through our docshell.
if (mIsGoingAway) {
nsCOMPtr<nsIInterfaceRequestor> requestor =
do_QueryReferent(mDocumentContainer);
if (requestor) {
nsCOMPtr<nsIScriptGlobalObject> globalObject = do_GetInterface(requestor);
return globalObject;
}
}
return mScriptGlobalObject;
}
nsIScriptGlobalObject*
nsDocument::GetScopeObject()
{
nsCOMPtr<nsIScriptGlobalObject> scope(do_QueryReferent(mScopeObject));
return scope;
}
void
nsDocument::SetScriptGlobalObject(nsIScriptGlobalObject *aScriptGlobalObject)
{
#ifdef DEBUG
{
nsCOMPtr<nsPIDOMWindow> win(do_QueryInterface(aScriptGlobalObject));
NS_ASSERTION(!win || win->IsInnerWindow(),
"Script global object must be an inner window!");
}
#endif
if (mScriptGlobalObject && !aScriptGlobalObject) {
// We're detaching from the window. We need to grab a pointer to
// our layout history state now.
mLayoutHistoryState = GetLayoutHistoryState();
// Also make sure to remove our onload blocker now if we haven't done it yet
if (mOnloadBlockCount != 0) {
nsCOMPtr<nsILoadGroup> loadGroup = GetDocumentLoadGroup();
if (loadGroup) {
loadGroup->RemoveRequest(mOnloadBlocker, nsnull, NS_OK);
}
}
}
mScriptGlobalObject = aScriptGlobalObject;
if (aScriptGlobalObject) {
mHasHadScriptHandlingObject = PR_TRUE;
// Go back to using the docshell for the layout history state
mLayoutHistoryState = nsnull;
mScopeObject = do_GetWeakReference(aScriptGlobalObject);
}
// Remember the pointer to our window (or lack there of), to avoid
// having to QI every time it's asked for.
nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(mScriptGlobalObject);
mWindow = window;
}
nsIScriptGlobalObject*
nsDocument::GetScriptHandlingObject(PRBool& aHasHadScriptHandlingObject) const
{
aHasHadScriptHandlingObject = mHasHadScriptHandlingObject;
if (mScriptGlobalObject) {
return mScriptGlobalObject;
}
nsCOMPtr<nsIScriptGlobalObject> scriptHandlingObject =
do_QueryReferent(mScriptObject);
nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(scriptHandlingObject);
if (win) {
NS_ASSERTION(win->IsInnerWindow(), "Should have inner window here!");
nsPIDOMWindow* outer = win->GetOuterWindow();
if (!outer || outer->GetCurrentInnerWindow() != win) {
NS_WARNING("Wrong inner/outer window combination!");
return nsnull;
}
}
return scriptHandlingObject;
}
void
nsDocument::SetScriptHandlingObject(nsIScriptGlobalObject* aScriptObject)
{
NS_ASSERTION(!mScriptGlobalObject ||
mScriptGlobalObject == aScriptObject,
"Wrong script object!");
nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(aScriptObject);
NS_ASSERTION(!win || win->IsInnerWindow(), "Should have inner window here!");
mScriptObject = do_GetWeakReference(aScriptObject);
if (aScriptObject) {
mHasHadScriptHandlingObject = PR_TRUE;
}
}
nsPIDOMWindow *
nsDocument::GetWindow()
{
if (mWindow) {
return mWindow->GetOuterWindow();
}
nsCOMPtr<nsPIDOMWindow> win(do_QueryInterface(GetScriptGlobalObject()));
if (!win) {
return nsnull;
}
return win->GetOuterWindow();
}
nsPIDOMWindow *
nsDocument::GetInnerWindow()
{
nsCOMPtr<nsPIDOMWindow> win(do_QueryInterface(GetScriptGlobalObject()));
return win;
}
nsScriptLoader*
nsDocument::ScriptLoader()
{
return mScriptLoader;
}
// 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)
{
// The array makes sure the observer isn't already in the list
mObservers.AppendElementUnlessExists(aObserver);
AddMutationObserver(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) {
RemoveMutationObserver(aObserver);
return mObservers.RemoveElement(aObserver);
}
return mObservers.Contains(aObserver);
}
void
nsDocument::BeginUpdate(nsUpdateType aUpdateType)
{
if (mUpdateNestLevel == 0) {
mBindingManager->BeginOutermostUpdate();
}
++mUpdateNestLevel;
if (mScriptLoader) {
mScriptLoader->AddExecuteBlocker();
}
NS_DOCUMENT_NOTIFY_OBSERVERS(BeginUpdate, (this, aUpdateType));
}
void
nsDocument::EndUpdate(nsUpdateType aUpdateType)
{
NS_DOCUMENT_NOTIFY_OBSERVERS(EndUpdate, (this, aUpdateType));
--mUpdateNestLevel;
if (mUpdateNestLevel == 0) {
// This set of updates may have created XBL bindings. Let the
// binding manager know we're done.
mBindingManager->EndOutermostUpdate();
}
if (mScriptLoader) {
mScriptLoader->RemoveExecuteBlocker();
}
}
void
nsDocument::BeginLoad()
{
// Block onload here to prevent having to deal with blocking and
// unblocking it while we know the document is loading.
BlockOnload();
NS_DOCUMENT_NOTIFY_OBSERVERS(BeginLoad, (this));
}
PRBool
nsDocument::CheckGetElementByIdArg(const nsAString& aId)
{
if (aId.IsEmpty()) {
nsContentUtils::ReportToConsole(
nsContentUtils::eDOM_PROPERTIES,
"EmptyGetElementByIdParam",
nsnull, 0,
nsnull,
EmptyString(), 0, 0,
nsIScriptError::warningFlag,
"DOM");
return PR_FALSE;
}
return PR_TRUE;
}
void
nsDocument::DispatchContentLoadedEvents()
{
// If you add early returns from this method, make sure you're
// calling UnblockOnload properly.
// Fire a DOM event notifying listeners that this document has been
// loaded (excluding images and other loads initiated by this
// document).
nsContentUtils::DispatchTrustedEvent(this, static_cast<nsIDocument*>(this),
NS_LITERAL_STRING("DOMContentLoaded"),
PR_TRUE, PR_TRUE);
// If this document is a [i]frame, fire a DOMFrameContentLoaded
// event on all parent documents notifying that the HTML (excluding
// other external files such as images and stylesheets) in a frame
// has finished loading.
// target_frame is the [i]frame element that will be used as the
// target for the event. It's the [i]frame whose content is done
// loading.
nsCOMPtr<nsIDOMEventTarget> target_frame;
if (mParentDocument) {
target_frame =
do_QueryInterface(mParentDocument->FindContentForSubDocument(this));
}
if (target_frame) {
nsCOMPtr<nsIDocument> parent = mParentDocument;
while (parent) {
parent = parent->GetParentDocument();
if (!parent) {
break;
}
nsCOMPtr<nsIDOMDocumentEvent> document_event =
do_QueryInterface(parent);
nsCOMPtr<nsIDOMEvent> event;
nsCOMPtr<nsIPrivateDOMEvent> privateEvent;
if (document_event) {
document_event->CreateEvent(NS_LITERAL_STRING("Events"),
getter_AddRefs(event));
privateEvent = do_QueryInterface(event);
}
if (event && privateEvent) {
event->InitEvent(NS_LITERAL_STRING("DOMFrameContentLoaded"), PR_TRUE,
PR_TRUE);
privateEvent->SetTarget(target_frame);
privateEvent->SetTrusted(PR_TRUE);
// To dispatch this event we must manually call
// nsEventDispatcher::Dispatch() on the ancestor document since the
// target is not in the same document, so the event would never reach
// the ancestor document if we used the normal event
// dispatching code.
nsEvent* innerEvent;
privateEvent->GetInternalNSEvent(&innerEvent);
if (innerEvent) {
nsEventStatus status = nsEventStatus_eIgnore;
nsIPresShell *shell = parent->GetPrimaryShell();
if (shell) {
nsCOMPtr<nsPresContext> context = shell->GetPresContext();
if (context) {
nsEventDispatcher::Dispatch(parent, context, innerEvent, event,
&status);
}
}
}
}
}
}
UnblockOnload(PR_TRUE);
}
void
nsDocument::EndLoad()
{
// Drop the ref to our parser, if any, but keep hold of the sink so that we
// can flush it from FlushPendingNotifications as needed. We might have to
// do that to get a StartLayout() to happen.
if (mParser) {
mWeakSink = do_GetWeakReference(mParser->GetContentSink());
mParser = nsnull;
}
NS_DOCUMENT_NOTIFY_OBSERVERS(EndLoad, (this));
nsRefPtr<nsIRunnable> ev =
new nsRunnableMethod<nsDocument>(this,
&nsDocument::DispatchContentLoadedEvents);
NS_DispatchToCurrentThread(ev);
}
void
nsDocument::ContentStatesChanged(nsIContent* aContent1, nsIContent* aContent2,
PRInt32 aStateMask)
{
NS_DOCUMENT_NOTIFY_OBSERVERS(ContentStatesChanged,
(this, aContent1, aContent2, aStateMask));
}
void
nsDocument::AttributeWillChange(nsIContent* aChild, PRInt32 aNameSpaceID,
nsIAtom* aAttribute)
{
NS_ASSERTION(aChild, "Null child!");
}
void
nsDocument::StyleRuleChanged(nsIStyleSheet* aStyleSheet,
nsIStyleRule* aOldStyleRule,
nsIStyleRule* aNewStyleRule)
{
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleRuleChanged,
(this, aStyleSheet,
aOldStyleRule, aNewStyleRule));
}
void
nsDocument::StyleRuleAdded(nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule)
{
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleRuleAdded,
(this, aStyleSheet, aStyleRule));
}
void
nsDocument::StyleRuleRemoved(nsIStyleSheet* aStyleSheet,
nsIStyleRule* aStyleRule)
{
NS_DOCUMENT_NOTIFY_OBSERVERS(StyleRuleRemoved,
(this, aStyleSheet, aStyleRule));
}
//
// nsIDOMDocument interface
//
NS_IMETHODIMP
nsDocument::GetDoctype(nsIDOMDocumentType** aDoctype)
{
NS_ENSURE_ARG_POINTER(aDoctype);
*aDoctype = nsnull;
PRInt32 i, count;
count = mChildren.ChildCount();
for (i = 0; i < count; i++) {
CallQueryInterface(mChildren.ChildAt(i), aDoctype);
if (*aDoctype) {
return NS_OK;
}
}
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
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), "about:blank");
NS_ENSURE_TRUE(uri, NS_ERROR_OUT_OF_MEMORY);
PRBool hasHadScriptObject = PR_TRUE;
nsIScriptGlobalObject* scriptObject =
GetScriptHandlingObject(hasHadScriptObject);
NS_ENSURE_STATE(scriptObject || !hasHadScriptObject);
*aImplementation = new nsDOMImplementation(scriptObject, uri, uri,
NodePrincipal());
if (!*aImplementation) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aImplementation);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetDocumentElement(nsIDOMElement** aDocumentElement)
{
NS_ENSURE_ARG_POINTER(aDocumentElement);
nsIContent* root = GetRootContent();
if (root) {
return CallQueryInterface(root, aDocumentElement);
}
*aDocumentElement = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::CreateElement(const nsAString& aTagName,
nsIDOMElement** aReturn)
{
*aReturn = nsnull;
nsresult rv = nsContentUtils::CheckQName(aTagName, PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
NS_ASSERTION(IsCaseSensitive(),
"nsDocument::CreateElement() called on document that is not "
"case sensitive. Fix caller, or fix "
"nsDocument::CreateElement()!");
nsCOMPtr<nsIAtom> name = do_GetAtom(aTagName);
nsCOMPtr<nsIContent> content;
rv = CreateElem(name, nsnull, GetDefaultNamespaceID(), PR_TRUE,
getter_AddRefs(content));
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(content, aReturn);
}
NS_IMETHODIMP
nsDocument::CreateElementNS(const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
nsIDOMElement** aReturn)
{
*aReturn = nsnull;
nsCOMPtr<nsINodeInfo> nodeInfo;
nsresult rv = nsContentUtils::GetNodeInfoFromQName(aNamespaceURI,
aQualifiedName,
mNodeInfoManager,
getter_AddRefs(nodeInfo));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIContent> content;
NS_NewElement(getter_AddRefs(content), nodeInfo->NamespaceID(), nodeInfo);
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(content, aReturn);
}
NS_IMETHODIMP
nsDocument::CreateTextNode(const nsAString& aData, nsIDOMText** aReturn)
{
*aReturn = nsnull;
nsCOMPtr<nsIContent> text;
nsresult rv = NS_NewTextNode(getter_AddRefs(text), mNodeInfoManager);
if (NS_SUCCEEDED(rv)) {
// Don't notify; this node is still being created.
text->SetText(aData, PR_FALSE);
rv = CallQueryInterface(text, aReturn);
}
return rv;
}
NS_IMETHODIMP
nsDocument::CreateDocumentFragment(nsIDOMDocumentFragment** aReturn)
{
return NS_NewDocumentFragment(aReturn, mNodeInfoManager);
}
NS_IMETHODIMP
nsDocument::CreateComment(const nsAString& aData, nsIDOMComment** aReturn)
{
*aReturn = nsnull;
// Make sure the substring "--" is not present in aData. Otherwise
// we'll create a document that can't be serialized.
if (FindInReadable(NS_LITERAL_STRING("--"), aData)) {
return NS_ERROR_DOM_INVALID_CHARACTER_ERR;
}
nsCOMPtr<nsIContent> comment;
nsresult rv = NS_NewCommentNode(getter_AddRefs(comment), mNodeInfoManager);
if (NS_SUCCEEDED(rv)) {
// Don't notify; this node is still being created.
comment->SetText(aData, PR_FALSE);
rv = CallQueryInterface(comment, aReturn);
}
return rv;
}
NS_IMETHODIMP
nsDocument::CreateCDATASection(const nsAString& aData,
nsIDOMCDATASection** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
if (FindInReadable(NS_LITERAL_STRING("]]>"), aData))
return NS_ERROR_DOM_INVALID_CHARACTER_ERR;
nsCOMPtr<nsIContent> content;
nsresult rv = NS_NewXMLCDATASection(getter_AddRefs(content),
mNodeInfoManager);
if (NS_SUCCEEDED(rv)) {
// Don't notify; this node is still being created.
content->SetText(aData, PR_FALSE);
rv = CallQueryInterface(content, aReturn);
}
return rv;
}
NS_IMETHODIMP
nsDocument::CreateProcessingInstruction(const nsAString& aTarget,
const nsAString& aData,
nsIDOMProcessingInstruction** aReturn)
{
*aReturn = nsnull;
nsresult rv = nsContentUtils::CheckQName(aTarget, PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
if (FindInReadable(NS_LITERAL_STRING("?>"), aData)) {
return NS_ERROR_DOM_INVALID_CHARACTER_ERR;
}
nsCOMPtr<nsIContent> content;
rv = NS_NewXMLProcessingInstruction(getter_AddRefs(content),
mNodeInfoManager, aTarget, aData);
if (NS_FAILED(rv)) {
return rv;
}
return CallQueryInterface(content, aReturn);
}
NS_IMETHODIMP
nsDocument::CreateAttribute(const nsAString& aName,
nsIDOMAttr** aReturn)
{
*aReturn = nsnull;
NS_ENSURE_TRUE(mNodeInfoManager, NS_ERROR_NOT_INITIALIZED);
nsresult rv = nsContentUtils::CheckQName(aName, PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString value;
nsDOMAttribute* attribute;
nsCOMPtr<nsINodeInfo> nodeInfo;
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 CallQueryInterface(attribute, aReturn);
}
NS_IMETHODIMP
nsDocument::CreateAttributeNS(const nsAString & aNamespaceURI,
const nsAString & aQualifiedName,
nsIDOMAttr **aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = nsnull;
nsCOMPtr<nsINodeInfo> nodeInfo;
nsresult rv = nsContentUtils::GetNodeInfoFromQName(aNamespaceURI,
aQualifiedName,
mNodeInfoManager,
getter_AddRefs(nodeInfo));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString value;
nsDOMAttribute* attribute = new nsDOMAttribute(nsnull, nodeInfo, value);
NS_ENSURE_TRUE(attribute, NS_ERROR_OUT_OF_MEMORY);
return CallQueryInterface(attribute, aResult);
}
NS_IMETHODIMP
nsDocument::CreateEntityReference(const nsAString& aName,
nsIDOMEntityReference** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetElementsByTagName(const nsAString& aTagname,
nsIDOMNodeList** aReturn)
{
nsCOMPtr<nsIAtom> nameAtom = do_GetAtom(aTagname);
NS_ENSURE_TRUE(nameAtom, NS_ERROR_OUT_OF_MEMORY);
nsContentList *list = NS_GetContentList(this, nameAtom, kNameSpaceID_Unknown).get();
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
// transfer ref to aReturn
*aReturn = list;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetElementsByTagNameNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName,
nsIDOMNodeList** aReturn)
{
PRInt32 nameSpaceId = kNameSpaceID_Wildcard;
if (!aNamespaceURI.EqualsLiteral("*")) {
nsresult rv =
nsContentUtils::NameSpaceManager()->RegisterNameSpace(aNamespaceURI,
nameSpaceId);
NS_ENSURE_SUCCESS(rv, rv);
}
nsCOMPtr<nsIAtom> nameAtom = do_GetAtom(aLocalName);
NS_ENSURE_TRUE(nameAtom, NS_ERROR_OUT_OF_MEMORY);
nsContentList *list = NS_GetContentList(this, nameAtom, nameSpaceId).get();
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
// transfer ref to aReturn
*aReturn = list;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetElementById(const nsAString & elementId,
nsIDOMElement **_retval)
{
// Should be implemented by subclass
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetAsync(PRBool *aAsync)
{
NS_ERROR("nsDocument::GetAsync() should be overriden by subclass!");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::SetAsync(PRBool aAsync)
{
NS_ERROR("nsDocument::SetAsync() should be overriden by subclass!");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::Load(const nsAString& aUrl, PRBool *aReturn)
{
NS_ERROR("nsDocument::Load() should be overriden by subclass!");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::EvaluateFIXptr(const nsAString& aExpression, nsIDOMRange **aRange)
{
NS_ERROR("nsDocument::EvaluateFIXptr() should be overriden by subclass!");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::EvaluateXPointer(const nsAString& aExpression,
nsIXPointerResult **aResult)
{
NS_ERROR("nsDocument::EvaluateXPointer() should be overriden by subclass!");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetStyleSheets(nsIDOMStyleSheetList** aStyleSheets)
{
if (!mDOMStyleSheets) {
mDOMStyleSheets = new nsDOMStyleSheetList(this);
if (!mDOMStyleSheets) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
*aStyleSheets = mDOMStyleSheets;
NS_ADDREF(*aStyleSheets);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetSelectedStyleSheetSet(nsAString& aSheetSet)
{
aSheetSet.Truncate();
// Look through our sheets, find the selected set title
PRInt32 count = GetNumberOfStyleSheets();
nsAutoString title;
for (PRInt32 index = 0; index < count; index++) {
nsIStyleSheet* sheet = GetStyleSheetAt(index);
NS_ASSERTION(sheet, "Null sheet in sheet list!");
nsCOMPtr<nsIDOMStyleSheet> domSheet = do_QueryInterface(sheet);
NS_ASSERTION(domSheet, "Sheet must QI to nsIDOMStyleSheet");
PRBool disabled;
domSheet->GetDisabled(&disabled);
if (disabled) {
// Disabled sheets don't affect the currently selected set
continue;
}
sheet->GetTitle(title);
if (aSheetSet.IsEmpty()) {
aSheetSet = title;
} else if (!title.IsEmpty() && !aSheetSet.Equals(title)) {
// Sheets from multiple sets enabled; return null string, per spec.
SetDOMStringToNull(aSheetSet);
break;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetSelectedStyleSheetSet(const nsAString& aSheetSet)
{
if (DOMStringIsNull(aSheetSet)) {
return NS_OK;
}
// Must update mLastStyleSheetSet before doing anything else with stylesheets
// or CSSLoaders.
mLastStyleSheetSet = aSheetSet;
EnableStyleSheetsForSetInternal(aSheetSet, PR_TRUE);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetLastStyleSheetSet(nsAString& aSheetSet)
{
aSheetSet = mLastStyleSheetSet;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetPreferredStyleSheetSet(nsAString& aSheetSet)
{
GetHeaderData(nsGkAtoms::headerDefaultStyle, aSheetSet);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetStyleSheetSets(nsIDOMDOMStringList** aList)
{
if (!mStyleSheetSetList) {
mStyleSheetSetList = new nsDOMStyleSheetSetList(this);
if (!mStyleSheetSetList) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
NS_ADDREF(*aList = mStyleSheetSetList);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::EnableStyleSheetsForSet(const nsAString& aSheetSet)
{
// Per spec, passing in null is a no-op.
if (!DOMStringIsNull(aSheetSet)) {
// Note: must make sure to not change the CSSLoader's preferred sheet --
// that value should be equal to either our lastStyleSheetSet (if that's
// non-null) or to our preferredStyleSheetSet. And this method doesn't
// change either of those.
EnableStyleSheetsForSetInternal(aSheetSet, PR_FALSE);
}
return NS_OK;
}
void
nsDocument::EnableStyleSheetsForSetInternal(const nsAString& aSheetSet,
PRBool aUpdateCSSLoader)
{
BeginUpdate(UPDATE_STYLE);
PRInt32 count = GetNumberOfStyleSheets();
nsAutoString title;
for (PRInt32 index = 0; index < count; index++) {
nsIStyleSheet* sheet = GetStyleSheetAt(index);
NS_ASSERTION(sheet, "Null sheet in sheet list!");
sheet->GetTitle(title);
if (!title.IsEmpty()) {
sheet->SetEnabled(title.Equals(aSheetSet));
}
}
if (aUpdateCSSLoader) {
CSSLoader()->SetPreferredSheet(aSheetSet);
}
EndUpdate(UPDATE_STYLE);
}
NS_IMETHODIMP
nsDocument::GetCharacterSet(nsAString& aCharacterSet)
{
CopyASCIItoUTF16(GetDocumentCharacterSet(), aCharacterSet);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::ImportNode(nsIDOMNode* aImportedNode,
PRBool aDeep,
nsIDOMNode** aResult)
{
NS_ENSURE_ARG(aImportedNode);
*aResult = nsnull;
nsresult rv = nsContentUtils::CheckSameOrigin(this, aImportedNode);
if (NS_FAILED(rv)) {
return rv;
}
PRUint16 nodeType;
aImportedNode->GetNodeType(&nodeType);
switch (nodeType) {
case nsIDOMNode::ATTRIBUTE_NODE:
case nsIDOMNode::DOCUMENT_FRAGMENT_NODE:
case nsIDOMNode::ELEMENT_NODE:
case nsIDOMNode::PROCESSING_INSTRUCTION_NODE:
case nsIDOMNode::TEXT_NODE:
case nsIDOMNode::CDATA_SECTION_NODE:
case nsIDOMNode::COMMENT_NODE:
{
nsCOMPtr<nsINode> imported = do_QueryInterface(aImportedNode);
NS_ENSURE_TRUE(imported, NS_ERROR_FAILURE);
nsCOMPtr<nsIDOMNode> newNode;
nsCOMArray<nsINode> nodesWithProperties;
rv = nsNodeUtils::Clone(imported, aDeep, mNodeInfoManager,
nodesWithProperties, getter_AddRefs(newNode));
NS_ENSURE_SUCCESS(rv, rv);
nsIDocument *ownerDoc = imported->GetOwnerDoc();
if (ownerDoc) {
rv = nsNodeUtils::CallUserDataHandlers(nodesWithProperties, ownerDoc,
nsIDOMUserDataHandler::NODE_IMPORTED,
PR_TRUE);
NS_ENSURE_SUCCESS(rv, rv);
}
newNode.swap(*aResult);
return NS_OK;
}
case nsIDOMNode::ENTITY_NODE:
case nsIDOMNode::ENTITY_REFERENCE_NODE:
case nsIDOMNode::NOTATION_NODE:
{
return NS_ERROR_NOT_IMPLEMENTED;
}
default:
{
NS_WARNING("Don't know how to clone this nodetype for importNode.");
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
}
}
NS_IMETHODIMP
nsDocument::AddBinding(nsIDOMElement* aContent, const nsAString& aURI)
{
NS_ENSURE_ARG(aContent);
nsresult rv = nsContentUtils::CheckSameOrigin(this, aContent);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIContent> content(do_QueryInterface(aContent));
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), aURI);
if (NS_FAILED(rv)) {
return rv;
}
// Figure out the right principal to use
nsCOMPtr<nsIPrincipal> subject;
nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
if (secMan) {
rv = secMan->GetSubjectPrincipal(getter_AddRefs(subject));
NS_ENSURE_SUCCESS(rv, rv);
}
if (!subject) {
// Fall back to our principal. Or should we fall back to the null
// principal? The latter would just mean no binding loads....
subject = NodePrincipal();
}
return mBindingManager->AddLayeredBinding(content, uri, subject);
}
NS_IMETHODIMP
nsDocument::RemoveBinding(nsIDOMElement* aContent, const nsAString& aURI)
{
NS_ENSURE_ARG(aContent);
nsresult rv = nsContentUtils::CheckSameOrigin(this, aContent);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), aURI);
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIContent> content(do_QueryInterface(aContent));
return mBindingManager->RemoveLayeredBinding(content, uri);
}
NS_IMETHODIMP
nsDocument::LoadBindingDocument(const nsAString& aURI)
{
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), aURI,
mCharacterSet.get(),
static_cast<nsIDocument *>(this)->GetBaseURI());
NS_ENSURE_SUCCESS(rv, rv);
// Figure out the right principal to use
nsCOMPtr<nsIPrincipal> subject;
nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
if (secMan) {
rv = secMan->GetSubjectPrincipal(getter_AddRefs(subject));
NS_ENSURE_SUCCESS(rv, rv);
}
if (!subject) {
// Fall back to our principal. Or should we fall back to the null
// principal? The latter would just mean no binding loads....
subject = NodePrincipal();
}
mBindingManager->LoadBindingDocument(this, uri, subject);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetBindingParent(nsIDOMNode* aNode, nsIDOMElement** aResult)
{
*aResult = nsnull;
nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
if (!content)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMElement> elt(do_QueryInterface(content->GetBindingParent()));
NS_IF_ADDREF(*aResult = elt);
return NS_OK;
}
static nsresult
GetElementByAttribute(nsIContent* aContent, nsIAtom* aAttrName,
const nsAString& aAttrValue, PRBool aUniversalMatch,
nsIDOMElement** aResult)
{
if (aUniversalMatch ? aContent->HasAttr(kNameSpaceID_None, aAttrName) :
aContent->AttrValueIs(kNameSpaceID_None, aAttrName,
aAttrValue, eCaseMatters)) {
return CallQueryInterface(aContent, aResult);
}
PRUint32 childCount = aContent->GetChildCount();
for (PRUint32 i = 0; i < childCount; ++i) {
nsIContent *current = aContent->GetChildAt(i);
GetElementByAttribute(current, aAttrName, aAttrValue, aUniversalMatch,
aResult);
if (*aResult)
return NS_OK;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetAnonymousElementByAttribute(nsIDOMElement* aElement,
const nsAString& aAttrName,
const nsAString& aAttrValue,
nsIDOMElement** aResult)
{
*aResult = nsnull;
nsCOMPtr<nsIDOMNodeList> nodeList;
GetAnonymousNodes(aElement, getter_AddRefs(nodeList));
if (!nodeList)
return NS_OK;
nsCOMPtr<nsIAtom> attribute = do_GetAtom(aAttrName);
PRUint32 length;
nodeList->GetLength(&length);
PRBool universalMatch = aAttrValue.EqualsLiteral("*");
for (PRUint32 i = 0; i < length; ++i) {
nsCOMPtr<nsIDOMNode> current;
nodeList->Item(i, getter_AddRefs(current));
nsCOMPtr<nsIContent> content(do_QueryInterface(current));
GetElementByAttribute(content, attribute, aAttrValue, universalMatch,
aResult);
if (*aResult)
return NS_OK;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetAnonymousNodes(nsIDOMElement* aElement,
nsIDOMNodeList** aResult)
{
*aResult = nsnull;
nsCOMPtr<nsIContent> content(do_QueryInterface(aElement));
return mBindingManager->GetAnonymousNodesFor(content, aResult);
}
NS_IMETHODIMP
nsDocument::CreateRange(nsIDOMRange** aReturn)
{
nsresult rv = NS_NewRange(aReturn);
if (NS_SUCCEEDED(rv)) {
(*aReturn)->SetStart(this, 0);
(*aReturn)->SetEnd(this, 0);
}
return rv;
}
NS_IMETHODIMP
nsDocument::CreateNodeIterator(nsIDOMNode *aRoot,
PRUint32 aWhatToShow,
nsIDOMNodeFilter *aFilter,
PRBool aEntityReferenceExpansion,
nsIDOMNodeIterator **_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::CreateTreeWalker(nsIDOMNode *aRoot,
PRUint32 aWhatToShow,
nsIDOMNodeFilter *aFilter,
PRBool aEntityReferenceExpansion,
nsIDOMTreeWalker **_retval)
{
*_retval = nsnull;
if (!aRoot) {
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
nsresult rv = nsContentUtils::CheckSameOrigin(this, aRoot);
if (NS_FAILED(rv)) {
return rv;
}
return NS_NewTreeWalker(aRoot, aWhatToShow, aFilter,
aEntityReferenceExpansion, _retval);
}
NS_IMETHODIMP
nsDocument::GetDefaultView(nsIDOMAbstractView** aDefaultView)
{
nsPIDOMWindow* win = GetWindow();
if (win) {
return CallQueryInterface(win, aDefaultView);
}
*aDefaultView = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetLocation(nsIDOMLocation **_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
*_retval = nsnull;
nsCOMPtr<nsIDOMWindowInternal> w(do_QueryInterface(mScriptGlobalObject));
if (!w) {
return NS_OK;
}
return w->GetLocation(_retval);
}
NS_IMETHODIMP
nsDocument::GetTitle(nsAString& aTitle)
{
aTitle.Assign(mDocumentTitle);
// Make sure not to return null from this method even if
// mDocumentTitle is void.
aTitle.SetIsVoid(PR_FALSE);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetTitle(const nsAString& aTitle)
{
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
nsCOMPtr<nsISupports> container = shell->GetPresContext()->GetContainer();
if (!container)
continue;
nsCOMPtr<nsIBaseWindow> docShellWin = do_QueryInterface(container);
if (!docShellWin)
continue;
nsresult rv = docShellWin->SetTitle(PromiseFlatString(aTitle).get());
NS_ENSURE_SUCCESS(rv, rv);
}
mDocumentTitle.Assign(aTitle);
// Fire a DOM event for the title change.
nsContentUtils::DispatchTrustedEvent(this, static_cast<nsIDocument*>(this),
NS_LITERAL_STRING("DOMTitleChanged"),
PR_TRUE, PR_TRUE);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetBoxObjectFor(nsIDOMElement* aElement, nsIBoxObject** aResult)
{
nsCOMPtr<nsIContent> content(do_QueryInterface(aElement));
NS_ENSURE_TRUE(content, NS_ERROR_UNEXPECTED);
nsIDocument* doc = content->HasFlag(NODE_FORCE_XBL_BINDINGS) ?
content->GetOwnerDoc() : content->GetCurrentDoc();
NS_ENSURE_TRUE(doc == this, NS_ERROR_DOM_WRONG_DOCUMENT_ERR);
*aResult = nsnull;
if (!mBoxObjectTable) {
mBoxObjectTable = new nsInterfaceHashtable<nsISupportsHashKey, nsPIBoxObject>;
if (mBoxObjectTable && !mBoxObjectTable->Init(12)) {
mBoxObjectTable = nsnull;
}
} else {
// Want to use Get(content, aResult); but it's the wrong type
*aResult = mBoxObjectTable->GetWeak(content);
if (*aResult) {
NS_ADDREF(*aResult);
return NS_OK;
}
}
PRInt32 namespaceID;
nsCOMPtr<nsIAtom> tag = mBindingManager->ResolveTag(content, &namespaceID);
nsCAutoString contractID("@mozilla.org/layout/xul-boxobject");
if (namespaceID == kNameSpaceID_XUL) {
if (tag == nsGkAtoms::browser ||
tag == nsGkAtoms::editor ||
tag == nsGkAtoms::iframe)
contractID += "-container";
else if (tag == nsGkAtoms::menu)
contractID += "-menu";
else if (tag == nsGkAtoms::popup ||
tag == nsGkAtoms::menupopup ||
tag == nsGkAtoms::panel ||
tag == nsGkAtoms::tooltip)
contractID += "-popup";
else if (tag == nsGkAtoms::tree)
contractID += "-tree";
else if (tag == nsGkAtoms::listbox)
contractID += "-listbox";
else if (tag == nsGkAtoms::scrollbox)
contractID += "-scrollbox";
}
contractID += ";1";
nsCOMPtr<nsPIBoxObject> boxObject(do_CreateInstance(contractID.get()));
if (!boxObject)
return NS_ERROR_FAILURE;
boxObject->Init(content);
if (mBoxObjectTable) {
mBoxObjectTable->Put(content, boxObject.get());
}
*aResult = boxObject;
NS_ADDREF(*aResult);
return NS_OK;
}
void
nsDocument::ClearBoxObjectFor(nsIContent* aContent)
{
if (mBoxObjectTable) {
nsPIBoxObject *boxObject = mBoxObjectTable->GetWeak(aContent);
if (boxObject) {
boxObject->Clear();
mBoxObjectTable->Remove(aContent);
}
}
}
nsresult
nsDocument::GetXBLChildNodesFor(nsIContent* aContent, nsIDOMNodeList** aResult)
{
return mBindingManager->GetXBLChildNodesFor(aContent, aResult);
}
nsresult
nsDocument::GetContentListFor(nsIContent* aContent, nsIDOMNodeList** aResult)
{
return mBindingManager->GetContentListFor(aContent, aResult);
}
void
nsDocument::FlushSkinBindings()
{
mBindingManager->FlushSkinBindings();
}
struct DirTable {
const char* mName;
PRUint8 mValue;
};
static const DirTable dirAttributes[] = {
{"ltr", IBMBIDI_TEXTDIRECTION_LTR},
{"rtl", IBMBIDI_TEXTDIRECTION_RTL},
{0}
};
/**
* Retrieve the "direction" property of the document.
*
* @lina 01/09/2001
*/
NS_IMETHODIMP
nsDocument::GetDir(nsAString& aDirection)
{
PRUint32 options = GetBidiOptions();
for (const DirTable* elt = dirAttributes; elt->mName; elt++) {
if (GET_BIDI_OPTION_DIRECTION(options) == elt->mValue) {
CopyASCIItoUTF16(elt->mName, aDirection);
break;
}
}
return NS_OK;
}
/**
* Set the "direction" property of the document.
*
* @lina 01/09/2001
*/
NS_IMETHODIMP
nsDocument::SetDir(const nsAString& aDirection)
{
PRUint32 options = GetBidiOptions();
for (const DirTable* elt = dirAttributes; elt->mName; elt++) {
if (aDirection == NS_ConvertASCIItoUTF16(elt->mName)) {
if (GET_BIDI_OPTION_DIRECTION(options) != elt->mValue) {
SET_BIDI_OPTION_DIRECTION(options, elt->mValue);
nsIPresShell *shell = GetPrimaryShell();
if (shell) {
nsPresContext *context = shell->GetPresContext();
NS_ENSURE_TRUE(context, NS_ERROR_UNEXPECTED);
context->SetBidi(options, PR_TRUE);
} else {
// No presentation; just set it on ourselves
SetBidiOptions(options);
}
}
break;
}
}
return NS_OK;
}
//
// nsIDOMNode methods
//
NS_IMETHODIMP
nsDocument::GetNodeName(nsAString& aNodeName)
{
aNodeName.AssignLiteral("#document");
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetNodeValue(nsAString& aNodeValue)
{
SetDOMStringToNull(aNodeValue);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetNodeValue(const nsAString& aNodeValue)
{
// The DOM spec says that when nodeValue is defined to be null "setting it
// has no effect", so we don't throw an exception.
return NS_OK;
}
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)
{
nsSlots *slots = GetSlots();
NS_ENSURE_TRUE(slots, NS_ERROR_OUT_OF_MEMORY);
if (!slots->mChildNodes) {
slots->mChildNodes = new nsChildContentList(this);
NS_ENSURE_TRUE(slots->mChildNodes, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(slots->mChildNodes);
}
NS_ADDREF(*aChildNodes = slots->mChildNodes);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::HasChildNodes(PRBool* aHasChildNodes)
{
NS_ENSURE_ARG(aHasChildNodes);
*aHasChildNodes = (mChildren.ChildCount() != 0);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::HasAttributes(PRBool* aHasAttributes)
{
NS_ENSURE_ARG(aHasAttributes);
*aHasAttributes = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetFirstChild(nsIDOMNode** aFirstChild)
{
if (mChildren.ChildCount()) {
return CallQueryInterface(mChildren.ChildAt(0), aFirstChild);
}
*aFirstChild = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetLastChild(nsIDOMNode** aLastChild)
{
PRInt32 count = mChildren.ChildCount();
if (count) {
return CallQueryInterface(mChildren.ChildAt(count-1), aLastChild);
}
*aLastChild = nsnull;
return NS_OK;
}
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(nsAString& aNamespaceURI)
{
SetDOMStringToNull(aNamespaceURI);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetPrefix(nsAString& aPrefix)
{
SetDOMStringToNull(aPrefix);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetPrefix(const nsAString& aPrefix)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsDocument::GetLocalName(nsAString& aLocalName)
{
SetDOMStringToNull(aLocalName);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::InsertBefore(nsIDOMNode* aNewChild, nsIDOMNode* aRefChild,
nsIDOMNode** aReturn)
{
return nsGenericElement::doReplaceOrInsertBefore(PR_FALSE, aNewChild, aRefChild, nsnull, this,
aReturn);
}
NS_IMETHODIMP
nsDocument::ReplaceChild(nsIDOMNode* aNewChild, nsIDOMNode* aOldChild,
nsIDOMNode** aReturn)
{
return nsGenericElement::doReplaceOrInsertBefore(PR_TRUE, aNewChild, aOldChild, nsnull, this,
aReturn);
}
NS_IMETHODIMP
nsDocument::RemoveChild(nsIDOMNode* aOldChild, nsIDOMNode** aReturn)
{
return nsGenericElement::doRemoveChild(aOldChild, nsnull, this, aReturn);
}
NS_IMETHODIMP
nsDocument::AppendChild(nsIDOMNode* aNewChild, nsIDOMNode** aReturn)
{
return nsDocument::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()
{
PRInt32 count = mChildren.ChildCount();
for (PRInt32 i = 0; i < count; ++i) {
nsCOMPtr<nsIDOMNode> node(do_QueryInterface(mChildren.ChildAt(i)));
if (node) {
node->Normalize();
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::IsSupported(const nsAString& aFeature, const nsAString& aVersion,
PRBool* aReturn)
{
return nsGenericElement::InternalIsSupported(static_cast<nsIDOMDocument*>(this),
aFeature, aVersion, aReturn);
}
NS_IMETHODIMP
nsDocument::GetBaseURI(nsAString &aURI)
{
nsCAutoString spec;
if (mDocumentBaseURI) {
mDocumentBaseURI->GetSpec(spec);
}
CopyUTF8toUTF16(spec, aURI);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetTextContent(nsAString &aTextContent)
{
SetDOMStringToNull(aTextContent);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetTextContent(const nsAString& aTextContent)
{
return NS_OK;
}
NS_IMETHODIMP
nsDocument::CompareDocumentPosition(nsIDOMNode* aOther, PRUint16* aReturn)
{
NS_ENSURE_ARG_POINTER(aOther);
// We could optimize this by getting the other nodes current document
// and comparing with ourself. But then we'd have to deal with the
// current document being null and such so it's easier this way.
// It's hardly a case to optimize anyway.
nsCOMPtr<nsINode> other = do_QueryInterface(aOther);
NS_ENSURE_TRUE(other, NS_ERROR_DOM_NOT_SUPPORTED_ERR);
*aReturn = nsContentUtils::ComparePosition(other, this);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::IsSameNode(nsIDOMNode* aOther, PRBool* aReturn)
{
PRBool sameNode = PR_FALSE;
if (this == aOther) {
sameNode = PR_TRUE;
}
*aReturn = sameNode;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::IsEqualNode(nsIDOMNode* aOther, PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aOther);
*aReturn = PR_FALSE;
// Node type check by QI. We also reuse this later.
nsCOMPtr<nsIDocument> aOtherDoc = do_QueryInterface(aOther);
if (!aOtherDoc) {
return NS_OK;
}
// Child nodes check.
PRUint32 childCount = GetChildCount();
if (childCount != aOtherDoc->GetChildCount()) {
return NS_OK;
}
for (PRUint32 i = 0; i < childCount; i++) {
nsIContent* aChild1 = GetChildAt(i);
nsIContent* aChild2 = aOtherDoc->GetChildAt(i);
if (!nsNode3Tearoff::AreNodesEqual(aChild1, aChild2)) {
return NS_OK;
}
}
/* Checks not needed: Prefix, namespace URI, local name, node name,
node value, attributes.
*/
*aReturn = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::IsDefaultNamespace(const nsAString& aNamespaceURI,
PRBool* aReturn)
{
nsAutoString defaultNamespace;
LookupNamespaceURI(EmptyString(), defaultNamespace);
*aReturn = aNamespaceURI.Equals(defaultNamespace);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetFeature(const nsAString& aFeature,
const nsAString& aVersion,
nsISupports** aReturn)
{
return nsGenericElement::InternalGetFeature(static_cast<nsIDOMDocument*>(this),
aFeature, aVersion, aReturn);
}
NS_IMETHODIMP
nsDocument::SetUserData(const nsAString &aKey,
nsIVariant *aData,
nsIDOMUserDataHandler *aHandler,
nsIVariant **aResult)
{
return nsNodeUtils::SetUserData(this, aKey, aData, aHandler, aResult);
}
NS_IMETHODIMP
nsDocument::GetUserData(const nsAString &aKey,
nsIVariant **aResult)
{
return nsNodeUtils::GetUserData(this, aKey, aResult);
}
NS_IMETHODIMP
nsDocument::LookupPrefix(const nsAString& aNamespaceURI,
nsAString& aPrefix)
{
nsCOMPtr<nsIDOM3Node> root(do_QueryInterface(GetRootContent()));
if (root) {
return root->LookupPrefix(aNamespaceURI, aPrefix);
}
SetDOMStringToNull(aPrefix);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::LookupNamespaceURI(const nsAString& aNamespacePrefix,
nsAString& aNamespaceURI)
{
if (NS_FAILED(nsContentUtils::LookupNamespaceURI(GetRootContent(),
aNamespacePrefix,
aNamespaceURI))) {
SetDOMStringToNull(aNamespaceURI);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetInputEncoding(nsAString& aInputEncoding)
{
return GetCharacterSet(aInputEncoding);
}
NS_IMETHODIMP
nsDocument::GetXmlEncoding(nsAString& aXmlEncoding)
{
if (mXMLDeclarationBits & XML_DECLARATION_BITS_DECLARATION_EXISTS &&
mXMLDeclarationBits & XML_DECLARATION_BITS_ENCODING_EXISTS) {
// XXX We don't store the encoding given in the xml declaration.
// For now, just output the inputEncoding which we do store.
GetInputEncoding(aXmlEncoding);
} else {
SetDOMStringToNull(aXmlEncoding);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetXmlStandalone(PRBool *aXmlStandalone)
{
*aXmlStandalone =
mXMLDeclarationBits & XML_DECLARATION_BITS_DECLARATION_EXISTS &&
mXMLDeclarationBits & XML_DECLARATION_BITS_STANDALONE_EXISTS &&
mXMLDeclarationBits & XML_DECLARATION_BITS_STANDALONE_YES;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetXmlStandalone(PRBool aXmlStandalone)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetXmlVersion(nsAString& aXmlVersion)
{
// If there is no declaration, the value is "1.0".
// XXX We only support "1.0", so always output "1.0" until that changes.
aXmlVersion.AssignLiteral("1.0");
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetXmlVersion(const nsAString& aXmlVersion)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetStrictErrorChecking(PRBool *aStrictErrorChecking)
{
// This attribute is true by default, and we don't really support it being false.
*aStrictErrorChecking = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetStrictErrorChecking(PRBool aStrictErrorChecking)
{
// We don't really support non-strict error checking, so just no-op for now.
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetDocumentURI(nsAString& aDocumentURI)
{
if (mDocumentURI) {
nsCAutoString uri;
mDocumentURI->GetSpec(uri);
CopyUTF8toUTF16(uri, aDocumentURI);
} else {
SetDOMStringToNull(aDocumentURI);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetDocumentURI(const nsAString& aDocumentURI)
{
// Not allowing this yet, need to think about security ramifications first.
// We use mDocumentURI to get principals for this document.
return NS_ERROR_NOT_IMPLEMENTED;
}
static void BlastSubtreeToPieces(nsINode *aNode);
PLDHashOperator PR_CALLBACK
BlastFunc(nsAttrHashKey::KeyType aKey, nsIDOMNode *aData, void* aUserArg)
{
nsCOMPtr<nsIAttribute> *attr =
static_cast<nsCOMPtr<nsIAttribute>*>(aUserArg);
*attr = do_QueryInterface(aData);
NS_ASSERTION(attr->get(),
"non-nsIAttribute somehow made it into the hashmap?!");
return PL_DHASH_STOP;
}
static void
BlastSubtreeToPieces(nsINode *aNode)
{
PRUint32 i, count;
if (aNode->IsNodeOfType(nsINode::eELEMENT)) {
nsGenericElement *element = static_cast<nsGenericElement*>(aNode);
const nsDOMAttributeMap *map = element->GetAttributeMap();
if (map) {
nsCOMPtr<nsIAttribute> attr;
while (map->Enumerate(BlastFunc, &attr) > 0) {
BlastSubtreeToPieces(attr);
nsresult rv = element->UnsetAttr(attr->NodeInfo()->NamespaceID(),
attr->NodeInfo()->NameAtom(),
PR_FALSE);
// XXX Should we abort here?
NS_ASSERTION(NS_SUCCEEDED(rv), "Uhoh, UnsetAttr shouldn't fail!");
}
}
}
count = aNode->GetChildCount();
for (i = 0; i < count; ++i) {
BlastSubtreeToPieces(aNode->GetChildAt(0));
nsresult rv = aNode->RemoveChildAt(0, PR_FALSE);
// XXX Should we abort here?
NS_ASSERTION(NS_SUCCEEDED(rv), "Uhoh, RemoveChildAt shouldn't fail!");
}
}
NS_IMETHODIMP
nsDocument::AdoptNode(nsIDOMNode *aAdoptedNode, nsIDOMNode **aResult)
{
NS_ENSURE_ARG(aAdoptedNode);
*aResult = nsnull;
nsresult rv = nsContentUtils::CheckSameOrigin(this, aAdoptedNode);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsINode> adoptedNode;
PRUint16 nodeType;
aAdoptedNode->GetNodeType(&nodeType);
switch (nodeType) {
case nsIDOMNode::ATTRIBUTE_NODE:
{
// Remove from ownerElement.
nsCOMPtr<nsIDOMAttr> adoptedAttr = do_QueryInterface(aAdoptedNode, &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMElement> ownerElement;
rv = adoptedAttr->GetOwnerElement(getter_AddRefs(ownerElement));
NS_ENSURE_SUCCESS(rv, rv);
if (ownerElement) {
nsCOMPtr<nsIDOMAttr> newAttr;
rv = ownerElement->RemoveAttributeNode(adoptedAttr,
getter_AddRefs(newAttr));
NS_ENSURE_SUCCESS(rv, rv);
newAttr.swap(adoptedAttr);
}
adoptedNode = do_QueryInterface(adoptedAttr, &rv);
NS_ENSURE_SUCCESS(rv, rv);
break;
}
case nsIDOMNode::DOCUMENT_FRAGMENT_NODE:
case nsIDOMNode::ELEMENT_NODE:
case nsIDOMNode::PROCESSING_INSTRUCTION_NODE:
case nsIDOMNode::TEXT_NODE:
case nsIDOMNode::CDATA_SECTION_NODE:
case nsIDOMNode::COMMENT_NODE:
{
adoptedNode = do_QueryInterface(aAdoptedNode, &rv);
NS_ENSURE_SUCCESS(rv, rv);
// We don't want to adopt an element into its own contentDocument or into
// a descendant contentDocument, so we check if the frameElement of this
// document or any of its parents is the adopted node or one of its
// descendants.
nsIDocument *doc = this;
do {
nsPIDOMWindow *win = doc->GetWindow();
if (win) {
nsCOMPtr<nsINode> node =
do_QueryInterface(win->GetFrameElementInternal());
if (node &&
nsContentUtils::ContentIsDescendantOf(node, adoptedNode)) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
}
} while ((doc = doc->GetParentDocument()));
// Remove from parent.
nsCOMPtr<nsIDOMNode> parent;
aAdoptedNode->GetParentNode(getter_AddRefs(parent));
NS_ENSURE_SUCCESS(rv, rv);
if (parent) {
nsCOMPtr<nsIDOMNode> newChild;
rv = parent->RemoveChild(aAdoptedNode, getter_AddRefs(newChild));
NS_ENSURE_SUCCESS(rv, rv);
}
break;
}
case nsIDOMNode::ENTITY_REFERENCE_NODE:
{
return NS_ERROR_NOT_IMPLEMENTED;
}
case nsIDOMNode::DOCUMENT_NODE:
case nsIDOMNode::DOCUMENT_TYPE_NODE:
case nsIDOMNode::ENTITY_NODE:
case nsIDOMNode::NOTATION_NODE:
{
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
default:
{
NS_WARNING("Don't know how to adopt this nodetype for adoptNode.");
return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
}
}
nsIDocument *oldDocument = adoptedNode->GetOwnerDoc();
PRBool sameDocument = oldDocument == this;
JSContext *cx = nsnull;
JSObject *oldScope = nsnull;
JSObject *newScope = nsnull;
if (!sameDocument && oldDocument) {
rv = nsContentUtils::GetContextAndScopes(oldDocument, this, &cx, &oldScope,
&newScope);
NS_ENSURE_SUCCESS(rv, rv);
}
nsCOMArray<nsINode> nodesWithProperties;
rv = nsNodeUtils::Adopt(adoptedNode, sameDocument ? nsnull : mNodeInfoManager,
cx, oldScope, newScope, nodesWithProperties);
if (NS_FAILED(rv)) {
// Disconnect all nodes from their parents, since some have the old document
// as their ownerDocument and some have this as their ownerDocument.
BlastSubtreeToPieces(adoptedNode);
if (!sameDocument && oldDocument) {
PRUint32 i, count = nodesWithProperties.Count();
for (i = 0; i < count; ++i) {
// Remove all properties.
oldDocument->PropertyTable()->
DeleteAllPropertiesFor(nodesWithProperties[i]);
}
}
return rv;
}
PRUint32 i, count = nodesWithProperties.Count();
if (!sameDocument && oldDocument) {
nsPropertyTable *oldTable = oldDocument->PropertyTable();
nsPropertyTable *newTable = PropertyTable();
for (i = 0; i < count; ++i) {
rv = oldTable->TransferOrDeleteAllPropertiesFor(nodesWithProperties[i],
newTable);
if (NS_FAILED(rv)) {
while (++i < count) {
oldTable->DeleteAllPropertiesFor(nodesWithProperties[i]);
}
// Disconnect all nodes from their parents.
BlastSubtreeToPieces(adoptedNode);
return rv;
}
}
}
rv = nsNodeUtils::CallUserDataHandlers(nodesWithProperties, this,
nsIDOMUserDataHandler::NODE_ADOPTED,
PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(adoptedNode, aResult);
}
NS_IMETHODIMP
nsDocument::GetDomConfig(nsIDOMDOMConfiguration **aConfig)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::NormalizeDocument()
{
// We don't support DOMConfigurations yet, so this just
// does a straight shot of normalization.
return Normalize();
}
NS_IMETHODIMP
nsDocument::RenameNode(nsIDOMNode *aNode,
const nsAString& namespaceURI,
const nsAString& qualifiedName,
nsIDOMNode **aReturn)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::GetOwnerDocument(nsIDOMDocument** aOwnerDocument)
{
*aOwnerDocument = nsnull;
return NS_OK;
}
nsresult
nsDocument::GetListenerManager(PRBool aCreateIfNotFound,
nsIEventListenerManager** aInstancePtrResult)
{
if (mListenerManager) {
*aInstancePtrResult = mListenerManager;
NS_ADDREF(*aInstancePtrResult);
return NS_OK;
}
if (!aCreateIfNotFound) {
*aInstancePtrResult = nsnull;
return NS_OK;
}
nsresult rv = NS_NewEventListenerManager(getter_AddRefs(mListenerManager));
NS_ENSURE_SUCCESS(rv, rv);
mListenerManager->SetListenerTarget(static_cast<nsIDocument *>(this));
*aInstancePtrResult = mListenerManager;
NS_ADDREF(*aInstancePtrResult);
return NS_OK;
}
nsresult
nsDocument::GetSystemEventGroup(nsIDOMEventGroup **aGroup)
{
nsCOMPtr<nsIEventListenerManager> manager;
if (NS_SUCCEEDED(GetListenerManager(PR_TRUE, getter_AddRefs(manager))) &&
manager) {
return manager->GetSystemEventGroupLM(aGroup);
}
return NS_ERROR_FAILURE;
}
nsresult
nsDocument::PreHandleEvent(nsEventChainPreVisitor& aVisitor)
{
aVisitor.mCanHandle = PR_TRUE;
// FIXME! This is a hack to make middle mouse paste working also in Editor.
// Bug 329119
aVisitor.mForceContentDispatch = PR_TRUE;
// Load events must not propagate to |window| object, see bug 335251.
if (aVisitor.mEvent->message != NS_LOAD) {
aVisitor.mParentTarget = GetWindow();
}
return NS_OK;
}
nsresult
nsDocument::PostHandleEvent(nsEventChainPostVisitor& aVisitor)
{
return NS_OK;
}
nsresult
nsDocument::DispatchDOMEvent(nsEvent* aEvent,
nsIDOMEvent* aDOMEvent,
nsPresContext* aPresContext,
nsEventStatus* aEventStatus)
{
return nsEventDispatcher::DispatchDOMEvent(static_cast<nsINode*>(this),
aEvent, aDOMEvent,
aPresContext, aEventStatus);
}
nsresult
nsDocument::AddEventListenerByIID(nsIDOMEventListener *aListener,
const nsIID& aIID)
{
nsCOMPtr<nsIEventListenerManager> manager;
GetListenerManager(PR_TRUE, getter_AddRefs(manager));
if (manager) {
manager->AddEventListenerByIID(aListener, aIID, NS_EVENT_FLAG_BUBBLE);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
nsresult
nsDocument::RemoveEventListenerByIID(nsIDOMEventListener *aListener,
const nsIID& aIID)
{
if (!mListenerManager) {
return NS_ERROR_FAILURE;
}
mListenerManager->RemoveEventListenerByIID(aListener, aIID,
NS_EVENT_FLAG_BUBBLE);
return NS_OK;
}
nsresult
nsDocument::AddEventListener(const nsAString& aType,
nsIDOMEventListener* aListener,
PRBool aUseCapture)
{
return AddEventListener(aType, aListener, aUseCapture,
!nsContentUtils::IsChromeDoc(this));
}
nsresult
nsDocument::RemoveEventListener(const nsAString& aType,
nsIDOMEventListener* aListener,
PRBool aUseCapture)
{
return RemoveGroupedEventListener(aType, aListener, aUseCapture, nsnull);
}
NS_IMETHODIMP
nsDocument::DispatchEvent(nsIDOMEvent* aEvent, PRBool *_retval)
{
// Obtain a presentation context
nsIPresShell *shell = GetPrimaryShell();
nsCOMPtr<nsPresContext> context;
if (shell) {
context = shell->GetPresContext();
}
nsEventStatus status = nsEventStatus_eIgnore;
nsresult rv =
nsEventDispatcher::DispatchDOMEvent(static_cast<nsINode*>(this),
nsnull, aEvent, context, &status);
*_retval = (status != nsEventStatus_eConsumeNoDefault);
return rv;
}
NS_IMETHODIMP
nsDocument::AddGroupedEventListener(const nsAString& aType,
nsIDOMEventListener *aListener,
PRBool aUseCapture,
nsIDOMEventGroup *aEvtGrp)
{
nsCOMPtr<nsIEventListenerManager> manager;
nsresult rv = GetListenerManager(PR_TRUE, getter_AddRefs(manager));
if (NS_SUCCEEDED(rv) && manager) {
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
manager->AddEventListenerByType(aListener, aType, flags, aEvtGrp);
return NS_OK;
}
return rv;
}
NS_IMETHODIMP
nsDocument::RemoveGroupedEventListener(const nsAString& aType,
nsIDOMEventListener *aListener,
PRBool aUseCapture,
nsIDOMEventGroup *aEvtGrp)
{
if (!mListenerManager) {
return NS_ERROR_FAILURE;
}
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
mListenerManager->RemoveEventListenerByType(aListener, aType, flags,
aEvtGrp);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::CanTrigger(const nsAString & type, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::IsRegisteredHere(const nsAString & type, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDocument::AddEventListener(const nsAString& aType,
nsIDOMEventListener *aListener,
PRBool aUseCapture, PRBool aWantsUntrusted)
{
nsCOMPtr<nsIEventListenerManager> manager;
nsresult rv = GetListenerManager(PR_TRUE, getter_AddRefs(manager));
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;
if (aWantsUntrusted) {
flags |= NS_PRIV_EVENT_UNTRUSTED_PERMITTED;
}
return manager->AddEventListenerByType(aListener, aType, flags, nsnull);
}
NS_IMETHODIMP
nsDocument::CreateEvent(const nsAString& aEventType, nsIDOMEvent** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
// Obtain a presentation shell
nsIPresShell *shell = GetPrimaryShell();
nsPresContext *presContext = nsnull;
if (shell) {
// Retrieve the context
presContext = shell->GetPresContext();
}
// Create event even without presContext.
return nsEventDispatcher::CreateEvent(presContext, nsnull,
aEventType, aReturn);
}
NS_IMETHODIMP
nsDocument::CreateEventGroup(nsIDOMEventGroup **aInstancePtrResult)
{
nsresult rv;
nsCOMPtr<nsIDOMEventGroup> group(do_CreateInstance(kDOMEventGroupCID, &rv));
NS_ENSURE_SUCCESS(rv, rv);
*aInstancePtrResult = group;
NS_ADDREF(*aInstancePtrResult);
return NS_OK;
}
void
nsDocument::FlushPendingNotifications(mozFlushType aType)
{
nsCOMPtr<nsIContentSink> sink;
if (mParser) {
sink = mParser->GetContentSink();
} else {
sink = do_QueryReferent(mWeakSink);
}
// Determine if it is safe to flush the sink notifications
// by determining if it safe to flush all the presshells.
if (sink && (aType == Flush_Content || IsSafeToFlush())) {
sink->FlushPendingNotifications(aType);
}
// Should we be flushing pending binding constructors in here?
nsPIDOMWindow *window = GetWindow();
if (aType <= Flush_ContentAndNotify || !window) {
// Nothing to do here
return;
}
// If we have a parent we must flush the parent too to ensure that our
// container is reflown if its size was changed. But if it's not safe to
// flush ourselves, then don't flush the parent, since that can cause things
// like resizes of our frame's widget, which we can't handle while flushing
// is unsafe.
if (mParentDocument && IsSafeToFlush()) {
mParentDocument->FlushPendingNotifications(aType);
}
nsPresShellIterator iter(this);
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell())) {
shell->FlushPendingNotifications(aType);
}
}
void
nsDocument::AddReference(void *aKey, nsISupports *aReference)
{
if (mScriptGlobalObject) {
if (!mContentWrapperHash) {
mContentWrapperHash = new nsInterfaceHashtable<nsVoidPtrHashKey, nsISupports>;
if (mContentWrapperHash) {
mContentWrapperHash->Init(10);
}
}
if (mContentWrapperHash)
mContentWrapperHash->Put(aKey, aReference);
}
}
nsISupports*
nsDocument::GetReference(void *aKey)
{
// NB: This method is part of content cycle collection,
// and must *not* Addref its return value.
if (mContentWrapperHash)
return mContentWrapperHash->GetWeak(aKey);
return nsnull;
}
void
nsDocument::RemoveReference(void *aKey)
{
if (mContentWrapperHash) {
mContentWrapperHash->Remove(aKey);
}
}
nsIScriptEventManager*
nsDocument::GetScriptEventManager()
{
if (!mScriptEventManager) {
mScriptEventManager = new nsScriptEventManager(this);
// automatically AddRefs
}
return mScriptEventManager;
}
void
nsDocument::SetXMLDeclaration(const PRUnichar *aVersion,
const PRUnichar *aEncoding,
const PRInt32 aStandalone)
{
if (!aVersion || *aVersion == '\0') {
mXMLDeclarationBits = 0;
return;
}
mXMLDeclarationBits = XML_DECLARATION_BITS_DECLARATION_EXISTS;
if (aEncoding && *aEncoding != '\0') {
mXMLDeclarationBits |= XML_DECLARATION_BITS_ENCODING_EXISTS;
}
if (aStandalone == 1) {
mXMLDeclarationBits |= XML_DECLARATION_BITS_STANDALONE_EXISTS |
XML_DECLARATION_BITS_STANDALONE_YES;
}
else if (aStandalone == 0) {
mXMLDeclarationBits |= XML_DECLARATION_BITS_STANDALONE_EXISTS;
}
}
void
nsDocument::GetXMLDeclaration(nsAString& aVersion, nsAString& aEncoding,
nsAString& aStandalone)
{
aVersion.Truncate();
aEncoding.Truncate();
aStandalone.Truncate();
if (!(mXMLDeclarationBits & XML_DECLARATION_BITS_DECLARATION_EXISTS)) {
return;
}
// always until we start supporting 1.1 etc.
aVersion.AssignLiteral("1.0");
if (mXMLDeclarationBits & XML_DECLARATION_BITS_ENCODING_EXISTS) {
// This is what we have stored, not necessarily what was written
// in the original
GetCharacterSet(aEncoding);
}
if (mXMLDeclarationBits & XML_DECLARATION_BITS_STANDALONE_EXISTS) {
if (mXMLDeclarationBits & XML_DECLARATION_BITS_STANDALONE_YES) {
aStandalone.AssignLiteral("yes");
} else {
aStandalone.AssignLiteral("no");
}
}
}
PRBool
nsDocument::IsScriptEnabled()
{
nsCOMPtr<nsIScriptSecurityManager> sm(do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID));
NS_ENSURE_TRUE(sm, PR_TRUE);
nsIScriptGlobalObject* globalObject = GetScriptGlobalObject();
NS_ENSURE_TRUE(globalObject, PR_TRUE);
nsIScriptContext *scriptContext = globalObject->GetContext();
NS_ENSURE_TRUE(scriptContext, PR_TRUE);
JSContext* cx = (JSContext *) scriptContext->GetNativeContext();
NS_ENSURE_TRUE(cx, PR_TRUE);
PRBool enabled;
nsresult rv = sm->CanExecuteScripts(cx, NodePrincipal(), &enabled);
NS_ENSURE_SUCCESS(rv, PR_TRUE);
return enabled;
}
nsresult
nsDocument::GetRadioGroup(const nsAString& aName,
nsRadioGroupStruct **aRadioGroup)
{
nsAutoString tmKey(aName);
if(!IsCaseSensitive())
ToLowerCase(tmKey); //should case-insensitive.
if (mRadioGroups.Get(tmKey, aRadioGroup))
return NS_OK;
nsAutoPtr<nsRadioGroupStruct> radioGroup(new nsRadioGroupStruct());
NS_ENSURE_TRUE(radioGroup, NS_ERROR_OUT_OF_MEMORY);
NS_ENSURE_TRUE(mRadioGroups.Put(tmKey, radioGroup), NS_ERROR_OUT_OF_MEMORY);
*aRadioGroup = radioGroup;
radioGroup.forget();
return NS_OK;
}
NS_IMETHODIMP
nsDocument::SetCurrentRadioButton(const nsAString& aName,
nsIDOMHTMLInputElement* aRadio)
{
nsRadioGroupStruct* radioGroup = nsnull;
GetRadioGroup(aName, &radioGroup);
if (radioGroup) {
radioGroup->mSelectedRadioButton = aRadio;
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetCurrentRadioButton(const nsAString& aName,
nsIDOMHTMLInputElement** aRadio)
{
nsRadioGroupStruct* radioGroup = nsnull;
GetRadioGroup(aName, &radioGroup);
if (radioGroup) {
*aRadio = radioGroup->mSelectedRadioButton;
NS_IF_ADDREF(*aRadio);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetPositionInGroup(nsIDOMHTMLInputElement *aRadio,
PRInt32 *aPositionIndex,
PRInt32 *aItemsInGroup)
{
*aPositionIndex = 0;
*aItemsInGroup = 1;
nsAutoString name;
aRadio->GetName(name);
if (name.IsEmpty()) {
return NS_OK;
}
nsRadioGroupStruct* radioGroup = nsnull;
nsresult rv = GetRadioGroup(name, &radioGroup);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFormControl> radioControl(do_QueryInterface(aRadio));
NS_ASSERTION(radioControl, "Radio button should implement nsIFormControl");
*aPositionIndex = radioGroup->mRadioButtons.IndexOf(radioControl);
NS_ASSERTION(*aPositionIndex >= 0, "Radio button not found in its own group");
*aItemsInGroup = radioGroup->mRadioButtons.Count();
return NS_OK;
}
NS_IMETHODIMP
nsDocument::GetNextRadioButton(const nsAString& aName,
const PRBool aPrevious,
nsIDOMHTMLInputElement* aFocusedRadio,
nsIDOMHTMLInputElement** aRadioOut)
{
// XXX Can we combine the HTML radio button method impls of
// nsDocument and nsHTMLFormControl?
// XXX Why is HTML radio button stuff in nsDocument, as
// opposed to nsHTMLDocument?
*aRadioOut = nsnull;
nsRadioGroupStruct* radioGroup = nsnull;
GetRadioGroup(aName, &radioGroup);
if (!radioGroup) {
return NS_ERROR_FAILURE;
}
// Return the radio button relative to the focused radio button.
// If no radio is focused, get the radio relative to the selected one.
nsCOMPtr<nsIDOMHTMLInputElement> currentRadio;
if (aFocusedRadio) {
currentRadio = aFocusedRadio;
}
else {
currentRadio = radioGroup->mSelectedRadioButton;
if (!currentRadio) {
return NS_ERROR_FAILURE;
}
}
nsCOMPtr<nsIFormControl> radioControl(do_QueryInterface(currentRadio));
PRInt32 index = radioGroup->mRadioButtons.IndexOf(radioControl);
if (index < 0) {
return NS_ERROR_FAILURE;
}
PRInt32 numRadios = radioGroup->mRadioButtons.Count();
PRBool disabled;
nsCOMPtr<nsIDOMHTMLInputElement> radio;
do {
if (aPrevious) {
if (--index < 0) {
index = numRadios -1;
}
}
else if (++index >= numRadios) {
index = 0;
}
radio = do_QueryInterface(radioGroup->mRadioButtons[index]);
NS_ASSERTION(radio, "mRadioButtons holding a non-radio button");
radio->GetDisabled(&disabled);
} while (disabled && radio != currentRadio);
NS_IF_ADDREF(*aRadioOut = radio);
return NS_OK;
}
NS_IMETHODIMP
nsDocument::AddToRadioGroup(const nsAString& aName,
nsIFormControl* aRadio)
{
nsRadioGroupStruct* radioGroup = nsnull;
GetRadioGroup(aName, &radioGroup);
if (radioGroup) {
radioGroup->mRadioButtons.AppendObject(aRadio);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::RemoveFromRadioGroup(const nsAString& aName,
nsIFormControl* aRadio)
{
nsRadioGroupStruct* radioGroup = nsnull;
GetRadioGroup(aName, &radioGroup);
if (radioGroup) {
radioGroup->mRadioButtons.RemoveObject(aRadio);
}
return NS_OK;
}
NS_IMETHODIMP
nsDocument::WalkRadioGroup(const nsAString& aName,
nsIRadioVisitor* aVisitor,
PRBool aFlushContent)
{
nsRadioGroupStruct* radioGroup = nsnull;
GetRadioGroup(aName, &radioGroup);
if (!radioGroup) {
return NS_OK;
}
PRBool stop = PR_FALSE;
for (int i = 0; i < radioGroup->mRadioButtons.Count(); i++) {
aVisitor->Visit(radioGroup->mRadioButtons[i], &stop);
if (stop) {
return NS_OK;
}
}
return NS_OK;
}
void
nsDocument::RetrieveRelevantHeaders(nsIChannel *aChannel)
{
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(aChannel);
PRTime modDate = LL_ZERO;
nsresult rv;
if (httpChannel) {
nsCAutoString tmp;
rv = httpChannel->GetResponseHeader(NS_LITERAL_CSTRING("last-modified"),
tmp);
if (NS_SUCCEEDED(rv)) {
PRTime time;
PRStatus st = PR_ParseTimeString(tmp.get(), PR_TRUE, &time);
if (st == PR_SUCCESS) {
modDate = time;
}
}
// The misspelled key 'referer' is as per the HTTP spec
rv = httpChannel->GetRequestHeader(NS_LITERAL_CSTRING("referer"),
mReferrer);
if (NS_FAILED(rv)) {
mReferrer.Truncate();
}
static const char *const headers[] = {
"default-style",
"content-style-type",
"content-language",
"content-disposition",
"refresh",
// add more http headers if you need
// XXXbz don't add content-location support without reading bug
// 238654 and its dependencies/dups first.
0
};
nsCAutoString headerVal;
const char *const *name = headers;
while (*name) {
rv =
httpChannel->GetResponseHeader(nsDependentCString(*name), headerVal);
if (NS_SUCCEEDED(rv) && !headerVal.IsEmpty()) {
nsCOMPtr<nsIAtom> key = do_GetAtom(*name);
SetHeaderData(key, NS_ConvertASCIItoUTF16(headerVal));
}
++name;
}
} else {
nsCOMPtr<nsIFileChannel> fileChannel = do_QueryInterface(aChannel);
if (fileChannel) {
nsCOMPtr<nsIFile> file;
fileChannel->GetFile(getter_AddRefs(file));
if (file) {
PRTime msecs;
rv = file->GetLastModifiedTime(&msecs);
if (NS_SUCCEEDED(rv)) {
PRInt64 intermediateValue;
LL_I2L(intermediateValue, PR_USEC_PER_MSEC);
LL_MUL(modDate, msecs, intermediateValue);
}
}
} else {
nsCOMPtr<nsIMultiPartChannel> partChannel = do_QueryInterface(aChannel);
if (partChannel) {
nsCAutoString contentDisp;
rv = partChannel->GetContentDisposition(contentDisp);
if (NS_SUCCEEDED(rv) && !contentDisp.IsEmpty()) {
SetHeaderData(nsGkAtoms::headerContentDisposition,
NS_ConvertASCIItoUTF16(contentDisp));
}
}
}
}
if (LL_IS_ZERO(modDate)) {
// We got nothing from our attempt to ask nsIFileChannel and
// nsIHttpChannel for the last modified time. Return the current
// time.
modDate = PR_Now();
}
mLastModified.Truncate();
if (LL_NE(modDate, LL_ZERO)) {
PRExplodedTime prtime;
PR_ExplodeTime(modDate, PR_LocalTimeParameters, &prtime);
// "MM/DD/YYYY hh:mm:ss"
char formatedTime[24];
if (PR_snprintf(formatedTime, sizeof(formatedTime),
"%02ld/%02ld/%04hd %02ld:%02ld:%02ld",
prtime.tm_month + 1, prtime.tm_mday, prtime.tm_year,
prtime.tm_hour , prtime.tm_min, prtime.tm_sec)) {
CopyASCIItoUTF16(nsDependentCString(formatedTime), mLastModified);
}
}
}
nsresult
nsDocument::CreateElem(nsIAtom *aName, nsIAtom *aPrefix, PRInt32 aNamespaceID,
PRBool aDocumentDefaultType, nsIContent **aResult)
{
nsresult rv;
#ifdef DEBUG
nsAutoString qName;
if (aPrefix) {
aPrefix->ToString(qName);
qName.Append(':');
}
const char *name;
aName->GetUTF8String(&name);
AppendUTF8toUTF16(name, qName);
rv = nsContentUtils::CheckQName(qName, PR_TRUE);
NS_ASSERTION(NS_SUCCEEDED(rv),
"Don't pass invalid names to nsDocument::CreateElem, "
"check caller.");
#endif
*aResult = nsnull;
PRInt32 elementType = aDocumentDefaultType ? mDefaultElementType :
aNamespaceID;
nsCOMPtr<nsINodeInfo> nodeInfo;
rv = mNodeInfoManager->GetNodeInfo(aName, aPrefix, aNamespaceID,
getter_AddRefs(nodeInfo));
NS_ENSURE_SUCCESS(rv, rv);
return NS_NewElement(aResult, elementType, nodeInfo);
}
PRBool
nsDocument::IsSafeToFlush() const
{
PRBool isSafeToFlush = PR_TRUE;
nsPresShellIterator iter(const_cast<nsIDocument*>
(static_cast<const nsIDocument*>(this)));
nsCOMPtr<nsIPresShell> shell;
while ((shell = iter.GetNextShell()) && isSafeToFlush) {
shell->IsSafeToFlush(isSafeToFlush);
}
return isSafeToFlush;
}
nsresult
nsDocument::Sanitize()
{
// Sanitize the document by resetting all password fields and any form
// fields with autocomplete=off to their default values. We do this now,
// instead of when the presentation is restored, to offer some protection
// in case there is ever an exploit that allows a cached document to be
// accessed from a different document.
// First locate all input elements, regardless of whether they are
// in a form, and reset the password and autocomplete=off elements.
nsCOMPtr<nsIDOMNodeList> nodes;
nsresult rv = GetElementsByTagName(NS_LITERAL_STRING("input"),
getter_AddRefs(nodes));
NS_ENSURE_SUCCESS(rv, rv);
PRUint32 length = 0;
if (nodes)
nodes->GetLength(&length);
nsCOMPtr<nsIDOMNode> item;
nsAutoString value;
PRUint32 i;
for (i = 0; i < length; ++i) {
nodes->Item(i, getter_AddRefs(item));
NS_ASSERTION(item, "null item in node list!");
nsCOMPtr<nsIDOMHTMLInputElement> input = do_QueryInterface(item);
if (!input)
continue;
PRBool resetValue = PR_FALSE;
input->GetAttribute(NS_LITERAL_STRING("autocomplete"), value);
if (value.LowerCaseEqualsLiteral("off")) {
resetValue = PR_TRUE;
} else {
input->GetType(value);
if (value.LowerCaseEqualsLiteral("password"))
resetValue = PR_TRUE;
}
if (resetValue) {
nsCOMPtr<nsIFormControl> fc = do_QueryInterface(input);
fc->Reset();
}
}
// Now locate all _form_ elements that have autocomplete=off and reset them
rv = GetElementsByTagName(NS_LITERAL_STRING("form"), getter_AddRefs(nodes));
NS_ENSURE_SUCCESS(rv, rv);
length = 0;
if (nodes)
nodes->GetLength(&length);
for (i = 0; i < length; ++i) {
nodes->Item(i, getter_AddRefs(item));
NS_ASSERTION(item, "null item in nodelist");
nsCOMPtr<nsIDOMHTMLFormElement> form = do_QueryInterface(item);
if (!form)
continue;
form->GetAttribute(NS_LITERAL_STRING("autocomplete"), value);
if (value.LowerCaseEqualsLiteral("off"))
form->Reset();
}
return NS_OK;
}
struct SubDocEnumArgs
{
nsIDocument::nsSubDocEnumFunc callback;
void *data;
};
PR_STATIC_CALLBACK(PLDHashOperator)
SubDocHashEnum(PLDHashTable *table, PLDHashEntryHdr *hdr,
PRUint32 number, void *arg)
{
SubDocMapEntry *entry = static_cast<SubDocMapEntry*>(hdr);
SubDocEnumArgs *args = static_cast<SubDocEnumArgs*>(arg);
nsIDocument *subdoc = entry->mSubDocument;
PRBool next = subdoc ? args->callback(subdoc, args->data) : PR_TRUE;
return next ? PL_DHASH_NEXT : PL_DHASH_STOP;
}
void
nsDocument::EnumerateSubDocuments(nsSubDocEnumFunc aCallback, void *aData)
{
if (mSubDocuments) {
SubDocEnumArgs args = { aCallback, aData };
PL_DHashTableEnumerate(mSubDocuments, SubDocHashEnum, &args);
}
}
PR_STATIC_CALLBACK(PLDHashOperator)
CanCacheSubDocument(PLDHashTable *table, PLDHashEntryHdr *hdr,
PRUint32 number, void *arg)
{
SubDocMapEntry *entry = static_cast<SubDocMapEntry*>(hdr);
PRBool *canCacheArg = static_cast<PRBool*>(arg);
nsIDocument *subdoc = entry->mSubDocument;
// The aIgnoreRequest we were passed is only for us, so don't pass it on.
PRBool canCache = subdoc ? subdoc->CanSavePresentation(nsnull) : PR_FALSE;
if (!canCache) {
*canCacheArg = PR_FALSE;
return PL_DHASH_STOP;
}
return PL_DHASH_NEXT;
}
#ifdef DEBUG_bryner
#define DEBUG_PAGE_CACHE
#endif
PRBool
nsDocument::CanSavePresentation(nsIRequest *aNewRequest)
{
// Check our event listener manager for unload/beforeunload listeners.
nsCOMPtr<nsPIDOMEventTarget> piTarget = do_QueryInterface(mScriptGlobalObject);
if (piTarget) {
nsCOMPtr<nsIEventListenerManager> manager;
piTarget->GetListenerManager(PR_FALSE, getter_AddRefs(manager));
if (manager && manager->HasUnloadListeners()) {
return PR_FALSE;
}
}
nsCOMPtr<nsILoadGroup> loadGroup = GetDocumentLoadGroup();
if (loadGroup) {
nsCOMPtr<nsISimpleEnumerator> requests;
loadGroup->GetRequests(getter_AddRefs(requests));
PRBool hasMore = PR_FALSE;
while (NS_SUCCEEDED(requests->HasMoreElements(&hasMore)) && hasMore) {
nsCOMPtr<nsISupports> elem;
requests->GetNext(getter_AddRefs(elem));
nsCOMPtr<nsIRequest> request = do_QueryInterface(elem);
if (request && request != aNewRequest) {
#ifdef DEBUG_PAGE_CACHE
nsCAutoString requestName, docSpec;
request->GetName(requestName);
if (mDocumentURI)
mDocumentURI->GetSpec(docSpec);
printf("document %s has request %s\n",
docSpec.get(), requestName.get());
#endif
return PR_FALSE;
}
}
}
PRBool canCache = PR_TRUE;
if (mSubDocuments)
PL_DHashTableEnumerate(mSubDocuments, CanCacheSubDocument, &canCache);
return canCache;
}
void
nsDocument::Destroy()
{
// The ContentViewer wants to release the document now. So, tell our content
// to drop any references to the document so that it can be destroyed.
if (mIsGoingAway)
return;
mIsGoingAway = PR_TRUE;
PRUint32 i, count = mChildren.ChildCount();
for (i = 0; i < count; ++i) {
mChildren.ChildAt(i)->DestroyContent();
}
mLayoutHistoryState = nsnull;
nsContentList::OnDocumentDestroy(this);
// XXX We really should let cycle collection do this, but that currently still
// leaks (see https://bugzilla.mozilla.org/show_bug.cgi?id=406684).
// When we start relying on cycle collection again we should remove the
// check for mScriptGlobalObject in AddReference.
delete mContentWrapperHash;
mContentWrapperHash = nsnull;
}
already_AddRefed<nsILayoutHistoryState>
nsDocument::GetLayoutHistoryState() const
{
nsILayoutHistoryState* state = nsnull;
if (!mScriptGlobalObject) {
NS_IF_ADDREF(state = mLayoutHistoryState);
} else {
nsCOMPtr<nsIDocShell> docShell(do_QueryReferent(mDocumentContainer));
if (docShell) {
docShell->GetLayoutHistoryState(&state);
}
}
return state;
}
void
nsDocument::BlockOnload()
{
// If mScriptGlobalObject is null, we shouldn't be messing with the loadgroup
// -- it's not ours.
if (mOnloadBlockCount == 0 && mScriptGlobalObject) {
nsCOMPtr<nsILoadGroup> loadGroup = GetDocumentLoadGroup();
if (loadGroup) {
loadGroup->AddRequest(mOnloadBlocker, nsnull);
}
}
++mOnloadBlockCount;
}
void
nsDocument::UnblockOnload(PRBool aFireSync)
{
if (mOnloadBlockCount == 0) {
NS_NOTREACHED("More UnblockOnload() calls than BlockOnload() calls; dropping call");
return;
}
--mOnloadBlockCount;
// If mScriptGlobalObject is null, we shouldn't be messing with the loadgroup
// -- it's not ours.
if (mOnloadBlockCount == 0 && mScriptGlobalObject) {
if (aFireSync) {
// Increment mOnloadBlockCount, since DoUnblockOnload will decrement it
++mOnloadBlockCount;
DoUnblockOnload();
} else {
PostUnblockOnloadEvent();
}
}
}
class nsUnblockOnloadEvent : public nsRunnable {
public:
nsUnblockOnloadEvent(nsDocument *doc) : mDoc(doc) {}
NS_IMETHOD Run() {
mDoc->DoUnblockOnload();
return NS_OK;
}
private:
nsRefPtr<nsDocument> mDoc;
};
void
nsDocument::PostUnblockOnloadEvent()
{
nsCOMPtr<nsIRunnable> evt = new nsUnblockOnloadEvent(this);
nsresult rv = NS_DispatchToCurrentThread(evt);
if (NS_SUCCEEDED(rv)) {
// Stabilize block count so we don't post more events while this one is up
++mOnloadBlockCount;
} else {
NS_WARNING("failed to dispatch nsUnblockOnloadEvent");
}
}
void
nsDocument::DoUnblockOnload()
{
NS_ASSERTION(mOnloadBlockCount != 0,
"Shouldn't have a count of zero here, since we stabilized in "
"PostUnblockOnloadEvent");
--mOnloadBlockCount;
if (mOnloadBlockCount != 0) {
// We blocked again after the last unblock. Nothing to do here. We'll
// post a new event when we unblock again.
return;
}
// If mScriptGlobalObject is null, we shouldn't be messing with the loadgroup
// -- it's not ours.
if (mScriptGlobalObject) {
nsCOMPtr<nsILoadGroup> loadGroup = GetDocumentLoadGroup();
if (loadGroup) {
loadGroup->RemoveRequest(mOnloadBlocker, nsnull, NS_OK);
}
}
}
/* See if document is a child of this. If so, return the frame element in this
* document that holds currentDoc (or an ancestor). */
already_AddRefed<nsIDOMElement>
nsDocument::CheckAncestryAndGetFrame(nsIDocument* aDocument) const
{
nsIDocument* parentDoc;
for (parentDoc = aDocument->GetParentDocument();
parentDoc != static_cast<const nsIDocument* const>(this);
parentDoc = parentDoc->GetParentDocument()) {
if (!parentDoc) {
return nsnull;
}
aDocument = parentDoc;
}
// In a child document. Get the appropriate frame.
nsPIDOMWindow* currentWindow = aDocument->GetWindow();
if (!currentWindow) {
return nsnull;
}
nsIDOMElement* frameElement = currentWindow->GetFrameElementInternal();
if (!frameElement) {
return nsnull;
}
// Sanity check result
nsCOMPtr<nsIDOMDocument> domDocument;
frameElement->GetOwnerDocument(getter_AddRefs(domDocument));
if (domDocument != this) {
NS_ERROR("Child documents should live in windows the parent owns");
return nsnull;
}
NS_ADDREF(frameElement);
return frameElement;
}
void
nsDocument::DispatchEventToWindow(nsEvent *aEvent)
{
nsPIDOMWindow *window = GetWindow();
if (!window)
return;
aEvent->target = static_cast<nsIDocument*>(this);
nsEventDispatcher::Dispatch(window, nsnull, aEvent);
}
void
nsDocument::OnPageShow(PRBool aPersisted)
{
mVisible = PR_TRUE;
UpdateLinkMap();
nsIContent* root = GetRootContent();
if (aPersisted && root) {
// Send out notifications that our <link> elements are attached.
nsRefPtr<nsContentList> links = NS_GetContentList(root,
nsGkAtoms::link,
kNameSpaceID_Unknown);
if (links) {
PRUint32 linkCount = links->Length(PR_TRUE);
for (PRUint32 i = 0; i < linkCount; ++i) {
nsCOMPtr<nsILink> link = do_QueryInterface(links->Item(i, PR_FALSE));
if (link) {
link->LinkAdded();
}
}
}
}
nsPageTransitionEvent event(PR_TRUE, NS_PAGE_SHOW, aPersisted);
DispatchEventToWindow(&event);
}
void
nsDocument::OnPageHide(PRBool aPersisted)
{
// Send out notifications that our <link> elements are detached,
// but only if this is not a full unload.
nsIContent* root = GetRootContent();
if (aPersisted && root) {
nsRefPtr<nsContentList> links = NS_GetContentList(root,
nsGkAtoms::link,
kNameSpaceID_Unknown);
if (links) {
PRUint32 linkCount = links->Length(PR_TRUE);
for (PRUint32 i = 0; i < linkCount; ++i) {
nsCOMPtr<nsILink> link = do_QueryInterface(links->Item(i, PR_FALSE));
if (link) {
link->LinkRemoved();
}
}
}
}
// Now send out a PageHide event.
nsPageTransitionEvent event(PR_TRUE, NS_PAGE_HIDE, aPersisted);
DispatchEventToWindow(&event);
mVisible = PR_FALSE;
}
void
nsDocument::WillDispatchMutationEvent(nsINode* aTarget)
{
NS_ASSERTION(mSubtreeModifiedDepth != 0 ||
mSubtreeModifiedTargets.Count() == 0,
"mSubtreeModifiedTargets not cleared after dispatching?");
++mSubtreeModifiedDepth;
if (aTarget) {
// MayDispatchMutationEvent is often called just before this method,
// so it has already appended the node to mSubtreeModifiedTargets.
PRInt32 count = mSubtreeModifiedTargets.Count();
if (!count || mSubtreeModifiedTargets[count - 1] != aTarget) {
mSubtreeModifiedTargets.AppendObject(aTarget);
}
}
}
void
nsDocument::MutationEventDispatched(nsINode* aTarget)
{
--mSubtreeModifiedDepth;
if (mSubtreeModifiedDepth == 0) {
PRInt32 count = mSubtreeModifiedTargets.Count();
if (!count) {
return;
}
nsCOMPtr<nsPIDOMWindow> window;
window = do_QueryInterface(GetScriptGlobalObject());
if (window &&
!window->HasMutationListeners(NS_EVENT_BITS_MUTATION_SUBTREEMODIFIED)) {
mSubtreeModifiedTargets.Clear();
return;
}
nsCOMArray<nsINode> realTargets;
for (PRInt32 i = 0; i < count; ++i) {
nsINode* possibleTarget = mSubtreeModifiedTargets[i];
nsCOMPtr<nsIContent> content = do_QueryInterface(possibleTarget);
if (content && content->IsNativeAnonymous()) {
if (realTargets.IndexOf(possibleTarget) == -1) {
realTargets.AppendObject(possibleTarget);
}
continue;
}
nsINode* commonAncestor = nsnull;
PRInt32 realTargetCount = realTargets.Count();
for (PRInt32 j = 0; j < realTargetCount; ++j) {
commonAncestor =
nsContentUtils::GetCommonAncestor(possibleTarget, realTargets[j]);
if (commonAncestor) {
realTargets.ReplaceObjectAt(commonAncestor, j);
break;
}
}
if (!commonAncestor) {
realTargets.AppendObject(possibleTarget);
}
}
mSubtreeModifiedTargets.Clear();
PRInt32 realTargetCount = realTargets.Count();
for (PRInt32 k = 0; k < realTargetCount; ++k) {
nsMutationEvent mutation(PR_TRUE, NS_MUTATION_SUBTREEMODIFIED);
nsEventDispatcher::Dispatch(realTargets[k], nsnull, &mutation);
}
}
}
static PRUint32 GetURIHash(nsIURI* aURI)
{
nsCAutoString str;
aURI->GetSpec(str);
return HashString(str);
}
void
nsDocument::AddStyleRelevantLink(nsIContent* aContent, nsIURI* aURI)
{
nsUint32ToContentHashEntry* entry = mLinkMap.PutEntry(GetURIHash(aURI));
if (!entry) // out of memory?
return;
entry->PutContent(aContent);
}
void
nsDocument::ForgetLink(nsIContent* aContent)
{
// Important optimization! If the link map is empty (as it will be
// during teardown because we destroy the map early), then stop
// now before we waste time constructing a URI object.
if (mLinkMap.Count() == 0)
return;
nsCOMPtr<nsIURI> uri;
if (!aContent->IsLink(getter_AddRefs(uri)))
return;
PRUint32 hash = GetURIHash(uri);
nsUint32ToContentHashEntry* entry = mLinkMap.GetEntry(hash);
if (!entry)
return;
entry->RemoveContent(aContent);
if (entry->IsEmpty()) {
// Remove the entry and allow the table to resize, in case
// a lot of links are being removed from the document or modified
mLinkMap.RemoveEntry(hash);
}
}
class URIVisitNotifier : public nsUint32ToContentHashEntry::Visitor
{
public:
nsCAutoString matchURISpec;
nsCOMArray<nsIContent> contentVisited;
virtual void Visit(nsIContent* aContent) {
// Ensure that the URIs really match before we try to do anything
nsCOMPtr<nsIURI> uri;
if (!aContent->IsLink(getter_AddRefs(uri))) {
NS_ERROR("Should have found a URI for content in the link map");
return;
}
nsCAutoString spec;
uri->GetSpec(spec);
// We use nsCString::Equals here instead of nsIURI::Equals because
// history matching is all based on spec equality
if (!spec.Equals(matchURISpec))
return;
// Throw away the cached link state so it gets refetched by the style
// system
nsCOMPtr<nsILink> link = do_QueryInterface(aContent);
if (link) {
link->SetLinkState(eLinkState_Unknown);
}
contentVisited.AppendObject(aContent);
}
};
void
nsDocument::NotifyURIVisitednessChanged(nsIURI* aURI)
{
if (!mVisible) {
mVisitednessChangedURIs.AppendObject(aURI);
return;
}
nsUint32ToContentHashEntry* entry = mLinkMap.GetEntry(GetURIHash(aURI));
if (!entry)
return;
URIVisitNotifier visitor;
aURI->GetSpec(visitor.matchURISpec);
entry->VisitContent(&visitor);
for (PRUint32 count = visitor.contentVisited.Count(), i = 0; i < count; ++i) {
ContentStatesChanged(visitor.contentVisited[i],
nsnull, NS_EVENT_STATE_VISITED);
}
}
void
nsDocument::DestroyLinkMap()
{
mVisitednessChangedURIs.Clear();
mLinkMap.Clear();
}
void
nsDocument::UpdateLinkMap()
{
NS_ASSERTION(mVisible,
"Should only be updating the link map in visible documents");
if (!mVisible)
return;
PRInt32 count = mVisitednessChangedURIs.Count();
for (PRInt32 i = 0; i < count; ++i) {
NotifyURIVisitednessChanged(mVisitednessChangedURIs[i]);
}
mVisitednessChangedURIs.Clear();
}
NS_IMETHODIMP
nsDocument::GetScriptTypeID(PRUint32 *aScriptType)
{
NS_ERROR("No default script type here - ask some element");
return nsIProgrammingLanguage::UNKNOWN;
}
NS_IMETHODIMP
nsDocument::SetScriptTypeID(PRUint32 aScriptType)
{
NS_ERROR("Can't change default script type for a document");
return NS_ERROR_NOT_IMPLEMENTED;
}