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Mozilla/mozilla/content/base/src/nsGenericElement.cpp
hyatt%netscape.com 4f171a2fce Fix for 57112. r=danm, sr=jst 
git-svn-id: svn://10.0.0.236/trunk@88561 18797224-902f-48f8-a5cc-f745e15eee43
2001-03-05 21:39:27 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsGenericElement.h"
#include "nsDOMAttribute.h"
#include "nsDOMAttributeMap.h"
#include "nsIAtom.h"
#include "nsINodeInfo.h"
#include "nsIDocument.h"
#include "nsIDOMNodeList.h"
#include "nsIDOMDocument.h"
#include "nsIDOMRange.h"
#include "nsIDOMText.h"
#include "nsIDOMEventReceiver.h"
#include "nsRange.h"
#include "nsIEventListenerManager.h"
#include "nsILinkHandler.h"
#include "nsIScriptGlobalObject.h"
#include "nsISizeOfHandler.h"
#include "nsISupportsArray.h"
#include "nsIURL.h"
#include "nsNetUtil.h"
#include "nsIFrame.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsString.h"
#include "nsDOMEventsIIDs.h"
#include "nsIEventStateManager.h"
#include "nsIDOMEvent.h"
#include "nsIPrivateDOMEvent.h"
#include "nsDOMCID.h"
#include "nsIServiceManager.h"
#include "nsIDOMScriptObjectFactory.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsDOMCSSDeclaration.h"
#include "nsINameSpaceManager.h"
#include "nsContentList.h"
#include "nsDOMError.h"
#include "nsScriptSecurityManager.h"
#include "nsIDOMMutationEvent.h"
#include "nsMutationEvent.h"
#include "nsIBindingManager.h"
#include "nsIXBLBinding.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsIDOMViewCSS.h"
#include "nsIXBLService.h"
#include "nsPIDOMWindow.h"
#include "nsIBoxObject.h"
#include "nsPIBoxObject.h"
#include "nsIDOMNSDocument.h"
#include "nsLayoutAtoms.h"
#include "nsHTMLAtoms.h"
#include "nsContentUtils.h"
#include "nsIJSContextStack.h"
#include "nsIServiceManager.h"
//----------------------------------------------------------------------
nsChildContentList::nsChildContentList(nsIContent *aContent)
{
// This reference is not reference-counted. The content
// object tells us when its about to go away.
mContent = aContent;
}
nsChildContentList::~nsChildContentList()
{
}
NS_IMETHODIMP
nsChildContentList::GetLength(PRUint32* aLength)
{
if (nsnull != mContent) {
PRInt32 length;
mContent->ChildCount(length);
*aLength = (PRUint32)length;
}
else {
*aLength = 0;
}
return NS_OK;
}
NS_IMETHODIMP
nsChildContentList::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
{
nsIContent *content;
nsresult res = NS_OK;
if (nsnull != mContent) {
mContent->ChildAt(aIndex, content);
if (nsnull != content) {
res = content->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)aReturn);
NS_RELEASE(content);
}
else {
*aReturn = nsnull;
}
}
else {
*aReturn = nsnull;
}
return res;
}
void
nsChildContentList::DropReference()
{
mContent = nsnull;
}
//----------------------------------------------------------------------
nsCheapVoidArray::nsCheapVoidArray()
{
mChildren = nsnull;
}
nsCheapVoidArray::~nsCheapVoidArray()
{
if (!HasSingleChild()) {
nsVoidArray* vector = GetChildVector();
if (vector) {
delete vector;
}
}
}
PRInt32
nsCheapVoidArray::Count() const
{
if (HasSingleChild()) {
return 1;
}
else {
nsVoidArray* vector = GetChildVector();
if (vector) {
return vector->Count();
}
}
return 0;
}
void*
nsCheapVoidArray::ElementAt(PRInt32 aIndex) const
{
if (HasSingleChild()) {
if (0 == aIndex) {
return (void*)GetSingleChild();
}
}
else {
nsVoidArray* vector = GetChildVector();
if (vector) {
return vector->ElementAt(aIndex);
}
}
return nsnull;
}
PRInt32
nsCheapVoidArray::IndexOf(void* aPossibleElement) const
{
if (HasSingleChild()) {
if (aPossibleElement == (void*)GetSingleChild()) {
return 0;
}
}
else {
nsVoidArray* vector = GetChildVector();
if (vector) {
return vector->IndexOf(aPossibleElement);
}
}
return -1;
}
PRBool
nsCheapVoidArray::InsertElementAt(void* aElement, PRInt32 aIndex)
{
nsVoidArray* vector;
if (HasSingleChild()) {
vector = SwitchToVector();
}
else {
vector = GetChildVector();
if (!vector) {
if (0 == aIndex) {
SetSingleChild(aElement);
return PR_TRUE;
}
else {
return PR_FALSE;
}
}
}
return vector->InsertElementAt(aElement, aIndex);
}
PRBool
nsCheapVoidArray::ReplaceElementAt(void* aElement, PRInt32 aIndex)
{
if (HasSingleChild()) {
if (aIndex == 0) {
SetSingleChild(aElement);
return PR_TRUE;
}
else {
return PR_FALSE;
}
}
else {
nsVoidArray* vector = GetChildVector();
if (vector) {
return vector->ReplaceElementAt(aElement, aIndex);
}
else {
return PR_FALSE;
}
}
}
PRBool
nsCheapVoidArray::AppendElement(void* aElement)
{
nsVoidArray* vector;
if (HasSingleChild()) {
vector = SwitchToVector();
}
else {
vector = GetChildVector();
if (!vector) {
SetSingleChild(aElement);
return PR_TRUE;
}
}
return vector->AppendElement(aElement);
}
PRBool
nsCheapVoidArray::RemoveElement(void* aElement)
{
if (HasSingleChild()) {
if (aElement == GetSingleChild()) {
SetSingleChild(nsnull);
return PR_TRUE;
}
}
else {
nsVoidArray* vector = GetChildVector();
if (vector) {
return vector->RemoveElement(aElement);
}
}
return PR_FALSE;
}
PRBool
nsCheapVoidArray::RemoveElementAt(PRInt32 aIndex)
{
if (HasSingleChild()) {
if (0 == aIndex) {
SetSingleChild(nsnull);
return PR_TRUE;
}
}
else {
nsVoidArray* vector = GetChildVector();
if (vector) {
return vector->RemoveElementAt(aIndex);
}
}
return PR_FALSE;
}
void
nsCheapVoidArray::Compact()
{
if (!HasSingleChild()) {
nsVoidArray* vector = GetChildVector();
if (vector) {
vector->Compact();
}
}
}
void
nsCheapVoidArray::SetSingleChild(void* aChild)
{
if (aChild)
mChildren = (void*)(PtrBits(aChild) | 0x1);
else
mChildren = nsnull;
}
nsVoidArray*
nsCheapVoidArray::SwitchToVector()
{
void* child = GetSingleChild();
mChildren = (void*)new nsVoidArray();
nsVoidArray* vector = GetChildVector();
if (vector && child) {
vector->AppendElement(child);
}
return vector;
}
//----------------------------------------------------------------------
// XXX Currently, the script object factory is global. The way we
// obtain it should, at least, be made thread-safe later. Ideally,
// we'd find a better way.
nsIDOMScriptObjectFactory* nsGenericElement::gScriptObjectFactory = nsnull;
static NS_DEFINE_IID(kDOMScriptObjectFactoryCID, NS_DOM_SCRIPT_OBJECT_FACTORY_CID);
nsresult
nsGenericElement::GetScriptObjectFactory(nsIDOMScriptObjectFactory **aResult)
{
nsresult result = NS_OK;
if (nsnull == gScriptObjectFactory) {
result = nsServiceManager::GetService(kDOMScriptObjectFactoryCID,
NS_GET_IID(nsIDOMScriptObjectFactory),
(nsISupports **)&gScriptObjectFactory);
if (result != NS_OK) {
return result;
}
}
*aResult = gScriptObjectFactory;
NS_ADDREF(gScriptObjectFactory);
return result;
}
/* static */ void
nsGenericElement::Shutdown()
{
NS_IF_RELEASE(gScriptObjectFactory); // assigns null
}
nsGenericElement::nsGenericElement() : mDocument(nsnull), mParent(nsnull),
mNodeInfo(nsnull), mDOMSlots(nsnull),
mContentID(0)
{
NS_INIT_REFCNT();
}
nsGenericElement::~nsGenericElement()
{
// pop any enclosed ranges out
// nsRange::OwnerGone(mContent); not used for now
if (mDOMSlots) {
if (mDOMSlots->mChildNodes) {
mDOMSlots->mChildNodes->DropReference();
NS_RELEASE(mDOMSlots->mChildNodes);
delete mDOMSlots->mRangeList;
}
if (mDOMSlots->mStyle) {
mDOMSlots->mStyle->DropReference();
NS_RELEASE(mDOMSlots->mStyle);
}
if (mDOMSlots->mAttributeMap) {
mDOMSlots->mAttributeMap->DropReference();
NS_RELEASE(mDOMSlots->mAttributeMap);
}
if (mDOMSlots->mListenerManager) {
mDOMSlots->mListenerManager->SetListenerTarget(nsnull);
NS_RELEASE(mDOMSlots->mListenerManager);
}
// XXX Should really be arena managed
delete mDOMSlots;
mDOMSlots = nsnull;
}
NS_IF_RELEASE(mNodeInfo);
}
nsDOMSlots *
nsGenericElement::GetDOMSlots()
{
if (!mDOMSlots) {
mDOMSlots = new nsDOMSlots;
if (!mDOMSlots)
return nsnull;
mDOMSlots->mScriptObject = nsnull;
mDOMSlots->mChildNodes = nsnull;
mDOMSlots->mStyle = nsnull;
mDOMSlots->mAttributeMap = nsnull;
mDOMSlots->mRangeList = nsnull;
mDOMSlots->mCapturer = nsnull;
mDOMSlots->mListenerManager = nsnull;
mDOMSlots->mBindingParent = nsnull;
}
return mDOMSlots;
}
void
nsGenericElement::MaybeClearDOMSlots()
{
if (mDOMSlots &&
!mDOMSlots->mScriptObject &&
!mDOMSlots->mChildNodes &&
!mDOMSlots->mStyle &&
!mDOMSlots->mAttributeMap &&
!mDOMSlots->mRangeList &&
!mDOMSlots->mCapturer &&
!mDOMSlots->mListenerManager &&
!mDOMSlots->mBindingParent) {
delete mDOMSlots;
mDOMSlots = nsnull;
}
}
nsresult
nsGenericElement::Init(nsINodeInfo *aNodeInfo)
{
NS_ENSURE_ARG(aNodeInfo);
mNodeInfo = aNodeInfo;
NS_ADDREF(mNodeInfo);
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetNodeName(nsAWritableString& aNodeName)
{
return mNodeInfo->GetQualifiedName(aNodeName);
}
NS_IMETHODIMP
nsGenericElement::GetLocalName(nsAWritableString& aLocalName)
{
return mNodeInfo->GetLocalName(aLocalName);
}
NS_IMETHODIMP
nsGenericElement::GetNodeValue(nsAWritableString& aNodeValue)
{
aNodeValue.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::SetNodeValue(const nsAReadableString& aNodeValue)
{
// The node value can't be modified
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsGenericElement::GetNodeType(PRUint16* aNodeType)
{
*aNodeType = (PRUint16)nsIDOMNode::ELEMENT_NODE;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetParentNode(nsIDOMNode** aParentNode)
{
nsresult res = NS_OK;
if (nsnull != mParent) {
res = mParent->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)aParentNode);
NS_ASSERTION(NS_OK == res, "Must be a DOM Node");
}
else if (nsnull == mDocument) {
*aParentNode = nsnull;
}
else {
// If we don't have a parent, but we're in the document, we must
// be the root node of the document. The DOM says that the root
// is the document.
res = mDocument->QueryInterface(NS_GET_IID(nsIDOMNode),
(void**)aParentNode);
}
return res;
}
NS_IMETHODIMP
nsGenericElement::GetPreviousSibling(nsIDOMNode** aPrevSibling)
{
nsIContent* sibling = nsnull;
nsresult result = NS_OK;
if (nsnull != mParent) {
PRInt32 pos;
mParent->IndexOf(this, pos);
if (pos > -1 ) {
mParent->ChildAt(--pos, sibling);
}
}
else if (nsnull != mDocument) {
// Nodes that are just below the document (their parent is the
// document) need to go to the document to find their next sibling.
PRInt32 pos;
mDocument->IndexOf(this, pos);
if (pos > -1 ) {
mDocument->ChildAt(--pos, sibling);
}
}
if (nsnull != sibling) {
result = sibling->QueryInterface(NS_GET_IID(nsIDOMNode),
(void**)aPrevSibling);
NS_ASSERTION(NS_OK == result, "Must be a DOM Node");
NS_RELEASE(sibling); // balance the AddRef in ChildAt()
}
else {
*aPrevSibling = nsnull;
}
return result;
}
NS_IMETHODIMP
nsGenericElement::GetNextSibling(nsIDOMNode** aNextSibling)
{
nsIContent* sibling = nsnull;
nsresult result = NS_OK;
if (nsnull != mParent) {
PRInt32 pos;
mParent->IndexOf(this, pos);
if (pos > -1 ) {
mParent->ChildAt(++pos, sibling);
}
}
else if (nsnull != mDocument) {
// Nodes that are just below the document (their parent is the
// document) need to go to the document to find their next sibling.
PRInt32 pos;
mDocument->IndexOf(this, pos);
if (pos > -1 ) {
mDocument->ChildAt(++pos, sibling);
}
}
if (nsnull != sibling) {
result = sibling->QueryInterface(NS_GET_IID(nsIDOMNode),
(void**)aNextSibling);
NS_ASSERTION(NS_OK == result, "Must be a DOM Node");
NS_RELEASE(sibling); // balance the AddRef in ChildAt()
}
else {
*aNextSibling = nsnull;
}
return result;
}
NS_IMETHODIMP
nsGenericElement::GetOwnerDocument(nsIDOMDocument** aOwnerDocument)
{
// XXX Actually the owner document is the document in whose context
// the element has been created. We should be able to get at it
// whether or not we are attached to the document.
if (nsnull != mDocument) {
return mDocument->QueryInterface(NS_GET_IID(nsIDOMDocument),
(void **)aOwnerDocument);
}
else {
*aOwnerDocument = nsnull;
return NS_OK;
}
}
NS_IMETHODIMP
nsGenericElement::GetNamespaceURI(nsAWritableString& aNamespaceURI)
{
return mNodeInfo->GetNamespaceURI(aNamespaceURI);
}
NS_IMETHODIMP
nsGenericElement::GetPrefix(nsAWritableString& aPrefix)
{
return mNodeInfo->GetPrefix(aPrefix);
}
NS_IMETHODIMP
nsGenericElement::SetPrefix(const nsAReadableString& aPrefix)
{
// XXX: Validate the prefix string!
nsINodeInfo *newNodeInfo = nsnull;
nsCOMPtr<nsIAtom> prefix;
if (aPrefix.Length()) {
prefix = dont_AddRef(NS_NewAtom(aPrefix));
NS_ENSURE_TRUE(prefix, NS_ERROR_OUT_OF_MEMORY);
}
nsresult rv = mNodeInfo->PrefixChanged(prefix, newNodeInfo);
NS_ENSURE_SUCCESS(rv, rv);
NS_RELEASE(mNodeInfo);
mNodeInfo = newNodeInfo;
return NS_OK;
}
nsresult
nsGenericElement::InternalIsSupported(const nsAReadableString& aFeature,
const nsAReadableString& aVersion,
PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = PR_FALSE;
nsAutoString feature(aFeature);
if (feature.EqualsWithConversion("XML", PR_TRUE) ||
feature.EqualsWithConversion("HTML", PR_TRUE)) {
if (!aVersion.Length() ||
aVersion.Equals(NS_LITERAL_STRING("1.0")) ||
aVersion.Equals(NS_LITERAL_STRING("2.0"))) {
*aReturn = PR_TRUE;
}
} else if (feature.EqualsWithConversion("Views", PR_TRUE) ||
feature.EqualsWithConversion("StyleSheets", PR_TRUE) ||
feature.EqualsWithConversion("CSS", PR_TRUE) ||
// feature.EqualsWithConversion("CSS2", PR_TRUE) ||
feature.EqualsWithConversion("Events", PR_TRUE) ||
// feature.EqualsWithConversion("UIEvents", PR_TRUE) ||
feature.EqualsWithConversion("MouseEvents", PR_TRUE) ||
feature.EqualsWithConversion("HTMLEvents", PR_TRUE) ||
feature.EqualsWithConversion("Range", PR_TRUE)) {
if (!aVersion.Length() || aVersion.Equals(NS_LITERAL_STRING("2.0"))) {
*aReturn = PR_TRUE;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::IsSupported(const nsAReadableString& aFeature,
const nsAReadableString& aVersion,
PRBool* aReturn)
{
return InternalIsSupported(aFeature, aVersion, aReturn);
}
NS_IMETHODIMP
nsGenericElement::HasAttributes(PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
PRInt32 attrCount = 0;
GetAttributeCount(attrCount);
*aReturn = !!attrCount;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetAttributes(nsIDOMNamedNodeMap** aAttributes)
{
NS_PRECONDITION(nsnull != aAttributes, "null pointer argument");
nsDOMSlots *slots = GetDOMSlots();
if (nsnull == slots->mAttributeMap) {
slots->mAttributeMap = new nsDOMAttributeMap(this);
if (nsnull == slots->mAttributeMap) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(slots->mAttributeMap);
}
return slots->mAttributeMap->QueryInterface(NS_GET_IID(nsIDOMNamedNodeMap),
(void **)aAttributes);
}
NS_IMETHODIMP
nsGenericElement::GetTagName(nsAWritableString& aTagName)
{
aTagName.Truncate();
if (mNodeInfo) {
mNodeInfo->GetName(aTagName);
}
return NS_OK;
}
nsresult
nsGenericElement::GetAttribute(const nsAReadableString& aName,
nsAWritableString& aReturn)
{
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttributeString(aName, *getter_AddRefs(ni));
NS_ENSURE_TRUE(ni, NS_ERROR_FAILURE);
PRInt32 nsid;
nsCOMPtr<nsIAtom> nameAtom;
ni->GetNamespaceID(nsid);
ni->GetNameAtom(*getter_AddRefs(nameAtom));
NS_STATIC_CAST(nsIContent *, this)->GetAttribute(nsid, nameAtom, aReturn);
return NS_OK;
}
nsresult
nsGenericElement::SetAttribute(const nsAReadableString& aName,
const nsAReadableString& aValue)
{
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttributeString(aName, *getter_AddRefs(ni));
return NS_STATIC_CAST(nsIContent *, this)->SetAttribute(ni, aValue, PR_TRUE);
}
nsresult
nsGenericElement::RemoveAttribute(const nsAReadableString& aName)
{
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttributeString(aName, *getter_AddRefs(ni));
NS_ENSURE_TRUE(ni, NS_ERROR_FAILURE);
PRInt32 nsid;
nsCOMPtr<nsIAtom> tag;
ni->GetNamespaceID(nsid);
ni->GetNameAtom(*getter_AddRefs(tag));
return UnsetAttribute(nsid, tag, PR_TRUE);
}
nsresult
nsGenericElement::GetAttributeNode(const nsAReadableString& aName,
nsIDOMAttr** aReturn)
{
if (nsnull == aReturn) {
return NS_ERROR_NULL_POINTER;
}
nsIDOMNamedNodeMap* map;
nsresult result = GetAttributes(&map);
*aReturn = nsnull;
if (NS_OK == result) {
nsIDOMNode* node;
result = map->GetNamedItem(aName, &node);
if ((NS_OK == result) && (nsnull != node)) {
result = node->QueryInterface(NS_GET_IID(nsIDOMAttr), (void **)aReturn);
NS_IF_RELEASE(node);
}
NS_RELEASE(map);
}
return result;
}
nsresult
nsGenericElement::SetAttributeNode(nsIDOMAttr* aAttribute,
nsIDOMAttr** aReturn)
{
if ((nsnull == aReturn) || (nsnull == aAttribute)) {
return NS_ERROR_NULL_POINTER;
}
nsIDOMNamedNodeMap* map;
nsresult result = GetAttributes(&map);
*aReturn = nsnull;
if (NS_OK == result) {
nsIDOMNode *node, *returnNode;
result = aAttribute->QueryInterface(NS_GET_IID(nsIDOMNode),
(void **)&node);
if (NS_OK == result) {
result = map->SetNamedItem(node, &returnNode);
if ((NS_OK == result) && (nsnull != returnNode)) {
result = returnNode->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
NS_IF_RELEASE(returnNode);
}
NS_RELEASE(node);
}
NS_RELEASE(map);
}
return result;
}
nsresult
nsGenericElement::RemoveAttributeNode(nsIDOMAttr* aAttribute,
nsIDOMAttr** aReturn)
{
if ((nsnull == aReturn) || (nsnull == aAttribute)) {
return NS_ERROR_NULL_POINTER;
}
nsIDOMNamedNodeMap* map;
nsresult result = GetAttributes(&map);
*aReturn = nsnull;
if (NS_OK == result) {
nsAutoString name;
result = aAttribute->GetName(name);
if (NS_OK == result) {
nsIDOMNode* node;
result = map->RemoveNamedItem(name, &node);
if ((NS_OK == result) && (nsnull != node)) {
result = node->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
NS_RELEASE(node);
}
}
NS_RELEASE(map);
}
return result;
}
nsresult
nsGenericElement::GetElementsByTagName(const nsAReadableString& aTagname,
nsIDOMNodeList** aReturn)
{
nsCOMPtr<nsIAtom> nameAtom;
nameAtom = dont_AddRef(NS_NewAtom(aTagname));
nsContentList* list = new nsContentList(mDocument,
nameAtom,
kNameSpaceID_Unknown,
this);
if (!list) {
return NS_ERROR_OUT_OF_MEMORY;
}
return list->QueryInterface(NS_GET_IID(nsIDOMNodeList), (void **)aReturn);
}
nsresult
nsGenericElement::GetAttributeNS(const nsAReadableString& aNamespaceURI,
const nsAReadableString& aLocalName,
nsAWritableString& aReturn)
{
nsCOMPtr<nsIAtom> name(dont_AddRef(NS_NewAtom(aLocalName)));
PRInt32 nsid;
nsCOMPtr<nsINodeInfoManager> nimgr;
mNodeInfo->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_TRUE(nimgr, NS_ERROR_FAILURE);
nsCOMPtr<nsINameSpaceManager> nsmgr;
nimgr->GetNamespaceManager(*getter_AddRefs(nsmgr));
NS_ENSURE_TRUE(nsmgr, NS_ERROR_FAILURE);
nsmgr->GetNameSpaceID(aNamespaceURI, nsid);
if (nsid == kNameSpaceID_Unknown) {
// Unkonwn namespace means no attr...
aReturn.Truncate();
return NS_OK;
}
NS_STATIC_CAST(nsIContent *, this)->GetAttribute(nsid, name, aReturn);
return NS_OK;
}
nsresult
nsGenericElement::SetAttributeNS(const nsAReadableString& aNamespaceURI,
const nsAReadableString& aQualifiedName,
const nsAReadableString& aValue)
{
nsCOMPtr<nsINodeInfoManager> nimgr;
mNodeInfo->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_TRUE(nimgr, NS_ERROR_FAILURE);
nsCOMPtr<nsINodeInfo> ni;
nsresult rv = nimgr->GetNodeInfo(aQualifiedName, aNamespaceURI,
*getter_AddRefs(ni));
NS_ENSURE_SUCCESS(rv, rv);
return NS_STATIC_CAST(nsIContent *, this)->SetAttribute(ni, aValue, PR_TRUE);
}
nsresult
nsGenericElement::RemoveAttributeNS(const nsAReadableString& aNamespaceURI,
const nsAReadableString& aLocalName)
{
nsCOMPtr<nsIAtom> name(dont_AddRef(NS_NewAtom(aLocalName)));
PRInt32 nsid;
nsCOMPtr<nsINodeInfoManager> nimgr;
mNodeInfo->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_TRUE(nimgr, NS_ERROR_FAILURE);
nsCOMPtr<nsINameSpaceManager> nsmgr;
nimgr->GetNamespaceManager(*getter_AddRefs(nsmgr));
NS_ENSURE_TRUE(nsmgr, NS_ERROR_FAILURE);
nsmgr->GetNameSpaceID(aNamespaceURI, nsid);
if (nsid == kNameSpaceID_Unknown) {
// Unkonwn namespace means no attr...
return NS_OK;
}
nsAutoString tmp;
UnsetAttribute(nsid, name, PR_TRUE);
return NS_OK;
}
nsresult
nsGenericElement::GetAttributeNodeNS(const nsAReadableString& aNamespaceURI,
const nsAReadableString& aLocalName,
nsIDOMAttr** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
nsIDOMNamedNodeMap* map;
nsresult result = GetAttributes(&map);
*aReturn = nsnull;
if (NS_OK == result) {
nsIDOMNode* node;
result = map->GetNamedItemNS(aNamespaceURI, aLocalName, &node);
if ((NS_OK == result) && (nsnull != node)) {
result = node->QueryInterface(NS_GET_IID(nsIDOMAttr), (void **)aReturn);
NS_IF_RELEASE(node);
}
NS_RELEASE(map);
}
return result;
}
nsresult
nsGenericElement::SetAttributeNodeNS(nsIDOMAttr* aNewAttr,
nsIDOMAttr** aReturn)
{
if ((nsnull == aReturn) || (nsnull == aNewAttr)) {
return NS_ERROR_NULL_POINTER;
}
nsIDOMNamedNodeMap* map;
nsresult result = GetAttributes(&map);
*aReturn = nsnull;
if (NS_OK == result) {
nsIDOMNode *node, *returnNode;
result = aNewAttr->QueryInterface(NS_GET_IID(nsIDOMNode), (void **)&node);
if (NS_OK == result) {
result = map->SetNamedItemNS(node, &returnNode);
if ((NS_OK == result) && (nsnull != returnNode)) {
result = returnNode->QueryInterface(NS_GET_IID(nsIDOMAttr),
(void **)aReturn);
NS_IF_RELEASE(returnNode);
}
NS_RELEASE(node);
}
NS_RELEASE(map);
}
return NS_OK;
}
nsresult
nsGenericElement::GetElementsByTagNameNS(const nsAReadableString& aNamespaceURI,
const nsAReadableString& aLocalName,
nsIDOMNodeList** aReturn)
{
nsCOMPtr<nsIAtom> nameAtom(dont_AddRef(NS_NewAtom(aLocalName)));
PRInt32 nameSpaceId = kNameSpaceID_Unknown;
nsContentList* list = nsnull;
if (!aNamespaceURI.Equals(NS_LITERAL_STRING("*"))) {
nsCOMPtr<nsINodeInfoManager> nimgr;
mNodeInfo->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_TRUE(nimgr, NS_ERROR_FAILURE);
nsCOMPtr<nsINameSpaceManager> nsmgr;
nimgr->GetNamespaceManager(*getter_AddRefs(nsmgr));
NS_ENSURE_TRUE(nsmgr, NS_ERROR_FAILURE);
nsmgr->GetNameSpaceID(aNamespaceURI, nameSpaceId);
if (nameSpaceId == kNameSpaceID_Unknown) {
// Unkonwn namespace means no matches, we create an empty list...
list = new nsContentList(mDocument, nsnull, kNameSpaceID_None);
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
}
}
if (!list) {
list = new nsContentList(mDocument, nameAtom, nameSpaceId, this);
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
}
return list->QueryInterface(NS_GET_IID(nsIDOMNodeList), (void **)aReturn);
}
nsresult
nsGenericElement::HasAttribute(const nsAReadableString& aName, PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttributeString(aName, *getter_AddRefs(ni));
NS_ENSURE_TRUE(ni, NS_ERROR_FAILURE);
PRInt32 nsid;
nsCOMPtr<nsIAtom> nameAtom;
ni->GetNamespaceID(nsid);
ni->GetNameAtom(*getter_AddRefs(nameAtom));
nsAutoString tmp;
nsresult rv = NS_STATIC_CAST(nsIContent *, this)->GetAttribute(nsid,
nameAtom,
tmp);
*aReturn = rv == NS_CONTENT_ATTR_NOT_THERE ? PR_FALSE : PR_TRUE;
return NS_OK;
}
nsresult
nsGenericElement::HasAttributeNS(const nsAReadableString& aNamespaceURI,
const nsAReadableString& aLocalName,
PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
nsCOMPtr<nsIAtom> name(dont_AddRef(NS_NewAtom(aLocalName)));
PRInt32 nsid;
nsCOMPtr<nsINodeInfoManager> nimgr;
mNodeInfo->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_TRUE(nimgr, NS_ERROR_FAILURE);
nsCOMPtr<nsINameSpaceManager> nsmgr;
nimgr->GetNamespaceManager(*getter_AddRefs(nsmgr));
NS_ENSURE_TRUE(nsmgr, NS_ERROR_FAILURE);
nsmgr->GetNameSpaceID(aNamespaceURI, nsid);
if (nsid == kNameSpaceID_Unknown) {
// Unkonwn namespace means no attr...
*aReturn = PR_FALSE;
return NS_OK;
}
nsAutoString tmp;
nsresult rv = NS_STATIC_CAST(nsIContent *, this)->GetAttribute(nsid, name,
tmp);
*aReturn = rv == NS_CONTENT_ATTR_NOT_THERE ? PR_FALSE : PR_TRUE;
return NS_OK;
}
nsresult
nsGenericElement::JoinTextNodes(nsIContent* aFirst,
nsIContent* aSecond)
{
nsresult rv = NS_OK;
nsCOMPtr<nsIDOMText> firstText(do_QueryInterface(aFirst, &rv));
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIDOMText> secondText(do_QueryInterface(aSecond, &rv));
if (NS_SUCCEEDED(rv)) {
nsAutoString str;
rv = secondText->GetData(str);
if (NS_SUCCEEDED(rv)) {
rv = firstText->AppendData(str);
}
}
}
return rv;
}
nsresult
nsGenericElement::Normalize()
{
nsresult result = NS_OK;
PRInt32 index, count;
ChildCount(count);
for (index = 0; (index < count) && (NS_OK == result); index++) {
nsCOMPtr<nsIContent> child;
result = ChildAt(index, *getter_AddRefs(child));
if (NS_FAILED(result)) {
return result;
}
nsCOMPtr<nsIDOMNode> node = do_QueryInterface(child);
if (node) {
PRUint16 nodeType;
node->GetNodeType(&nodeType);
switch (nodeType) {
case nsIDOMNode::TEXT_NODE:
if (index+1 < count) {
nsCOMPtr<nsIContent> sibling;
// Get the sibling. If it's also a text node, then
// remove it from the tree and join the two text
// nodes.
result = ChildAt(index+1, *getter_AddRefs(sibling));
if (NS_FAILED(result)) {
return result;
}
nsCOMPtr<nsIDOMNode> siblingNode = do_QueryInterface(sibling);
if (sibling) {
PRUint16 siblingNodeType;
siblingNode->GetNodeType(&siblingNodeType);
if (siblingNodeType == nsIDOMNode::TEXT_NODE) {
result = RemoveChildAt(index+1, PR_TRUE);
if (NS_FAILED(result)) {
return result;
}
result = JoinTextNodes(child, sibling);
if (NS_FAILED(result)) {
return result;
}
count--;
index--;
}
}
}
break;
case nsIDOMNode::ELEMENT_NODE:
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(child);
if (element) {
result = element->Normalize();
}
break;
}
}
}
return result;
}
nsresult
nsGenericElement::GetDocument(nsIDocument*& aResult) const
{
NS_IF_ADDREF(mDocument);
aResult = mDocument;
return NS_OK;
}
void
nsGenericElement::SetDocumentInChildrenOf(nsIContent* aContent,
nsIDocument* aDocument,
PRBool aCompileEventHandlers)
{
PRInt32 i, n;
aContent->ChildCount(n);
for (i = 0; i < n; i++) {
nsIContent* child;
aContent->ChildAt(i, child);
if (nsnull != child) {
child->SetDocument(aDocument, PR_TRUE, aCompileEventHandlers);
NS_RELEASE(child);
}
}
}
nsresult
nsGenericElement::SetDocument(nsIDocument* aDocument, PRBool aDeep,
PRBool aCompileEventHandlers)
{
if (aDocument != mDocument) {
// If we were part of a document, make sure we get rid of the
// script context reference to our script object so that our
// script object can be freed (or collected).
if (mDocument && mDOMSlots && mDOMSlots->mScriptObject) {
nsCOMPtr<nsIScriptGlobalObject> globalObject;
mDocument->GetScriptGlobalObject(getter_AddRefs(globalObject));
if (globalObject) {
nsCOMPtr<nsIScriptContext> context;
if (NS_OK == globalObject->GetContext(getter_AddRefs(context)) && context) {
context->RemoveReference((void *)&mDOMSlots->mScriptObject,
mDOMSlots->mScriptObject);
}
}
}
if (mDocument && aDeep) {
// Notify XBL- & nsIAnonymousContentCreator-generated
// anonymous content that the document is changing.
nsCOMPtr<nsIBindingManager> bindingManager;
mDocument->GetBindingManager(getter_AddRefs(bindingManager));
NS_ASSERTION(bindingManager, "No binding manager.");
if (bindingManager) {
bindingManager->ChangeDocumentFor(this, mDocument, aDocument);
}
nsCOMPtr<nsIDOMElement> domElement;
QueryInterface(NS_GET_IID(nsIDOMElement), getter_AddRefs(domElement));
if (domElement) {
nsCOMPtr<nsIDOMNSDocument> nsDoc(do_QueryInterface(mDocument));
nsDoc->SetBoxObjectFor(domElement, nsnull);
}
}
mDocument = aDocument;
// If we already have a script object and now we're being added
// to a document, make sure that the script context adds a
// reference to our script object. This will ensure that it
// won't be freed (or collected) out from under us.
if (mDocument && mDOMSlots && mDOMSlots->mScriptObject) {
nsCOMPtr<nsIScriptGlobalObject> globalObject;
mDocument->GetScriptGlobalObject(getter_AddRefs(globalObject));
if (globalObject) {
nsCOMPtr<nsIScriptContext> context;
if (NS_OK == globalObject->GetContext(getter_AddRefs(context)) && context) {
context->AddNamedReference((void *)&mDOMSlots->mScriptObject,
mDOMSlots->mScriptObject,
"nsGenericElement::mScriptObject");
}
}
}
}
if (PR_TRUE == aDeep) {
SetDocumentInChildrenOf(this, aDocument, aCompileEventHandlers);
}
return NS_OK;
}
nsresult
nsGenericElement::GetParent(nsIContent*& aResult) const
{
aResult = mParent;
NS_IF_ADDREF(aResult);
return NS_OK;
}
nsresult
nsGenericElement::SetParent(nsIContent* aParent)
{
mParent = aParent;
return NS_OK;
}
nsresult
nsGenericElement::GetNameSpaceID(PRInt32& aNameSpaceID) const
{
return mNodeInfo->GetNamespaceID(aNameSpaceID);
}
nsresult
nsGenericElement::GetTag(nsIAtom*& aResult) const
{
return mNodeInfo->GetNameAtom(aResult);
}
nsresult
nsGenericElement::GetNodeInfo(nsINodeInfo*& aResult) const
{
aResult = mNodeInfo;
NS_IF_ADDREF(aResult);
return NS_OK;
}
nsresult
nsGenericElement::HandleDOMEvent(nsIPresContext* aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus* aEventStatus)
{
nsresult ret = NS_OK;
PRBool retarget = PR_FALSE;
nsCOMPtr<nsIDOMEventTarget> oldTarget;
nsIDOMEvent* domEvent = nsnull;
if (NS_EVENT_FLAG_INIT & aFlags) {
if (!aDOMEvent) {
aDOMEvent = &domEvent;
}
aEvent->flags = aFlags;
aFlags &= ~(NS_EVENT_FLAG_CANT_BUBBLE | NS_EVENT_FLAG_CANT_CANCEL);
}
// Find out if we're anonymous.
nsCOMPtr<nsIContent> bindingParent;
GetBindingParent(getter_AddRefs(bindingParent));
if (bindingParent) {
// We're anonymous. We may potentially need to retarget
// our event if our parent is in a different scope.
if (mParent) {
nsCOMPtr<nsIContent> parentScope;
mParent->GetBindingParent(getter_AddRefs(parentScope));
if (parentScope != bindingParent)
retarget = PR_TRUE;
}
}
if (retarget) {
if (!*aDOMEvent) {
// We haven't made a DOMEvent yet. Force making one now.
nsCOMPtr<nsIEventListenerManager> listenerManager;
if (NS_FAILED(ret = GetListenerManager(getter_AddRefs(listenerManager)))) {
return ret;
}
nsAutoString empty;
if (NS_FAILED(ret = listenerManager->CreateEvent(aPresContext, aEvent, empty, aDOMEvent)))
return ret;
}
if (!*aDOMEvent) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(*aDOMEvent);
if (!privateEvent) {
return NS_ERROR_FAILURE;
}
(*aDOMEvent)->GetTarget(getter_AddRefs(oldTarget));
PRBool hasOriginal;
privateEvent->HasOriginalTarget(&hasOriginal);
if (!hasOriginal) {
privateEvent->SetOriginalTarget(oldTarget);
}
nsCOMPtr<nsIDOMEventTarget> target = do_QueryInterface(mParent);
privateEvent->SetTarget(target);
}
//Capturing stage evaluation
//Always pass capturing up the tree before local evaulation
if (NS_EVENT_FLAG_BUBBLE != aFlags) {
// XXX: Bring on the more optimized version of capturing at some point
//if (nsnull != mDOMSlots && nsnull != mDOMSlots->mCapturer) {
//mDOMSlots->mCapturer->HandleDOMEvent(aPresContext, aEvent, aDOMEvent, NS_EVENT_FLAG_CAPTURE, aEventStatus);
//} else {
// Node capturing stage
if (mParent) {
// Pass off to our parent.
mParent->HandleDOMEvent(aPresContext, aEvent, aDOMEvent, NS_EVENT_FLAG_CAPTURE, aEventStatus);
} else {
//Initiate capturing phase. Special case first call to document
if (nsnull != mDocument) {
mDocument->HandleDOMEvent(aPresContext, aEvent, aDOMEvent, NS_EVENT_FLAG_CAPTURE, aEventStatus);
}
}
//}
}
if (retarget) {
// The event originated beneath us, and we performed a retargeting.
// We need to restore the original target of the event.
nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(*aDOMEvent);
if (privateEvent)
privateEvent->SetTarget(oldTarget);
}
//Local handling stage
if (mDOMSlots && mDOMSlots->mListenerManager && !(aEvent->flags & NS_EVENT_FLAG_STOP_DISPATCH) &&
!(NS_EVENT_FLAG_BUBBLE & aFlags && NS_EVENT_FLAG_CANT_BUBBLE & aEvent->flags)) {
aEvent->flags |= aFlags;
nsCOMPtr<nsIDOMEventTarget> curTarg(do_QueryInterface(NS_STATIC_CAST(nsIHTMLContent *, this)));
mDOMSlots->mListenerManager->HandleEvent(aPresContext, aEvent, aDOMEvent, curTarg, aFlags, aEventStatus);
aEvent->flags &= ~aFlags;
}
if (retarget) {
// The event originated beneath us, and we need to perform a retargeting.
nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(*aDOMEvent);
if (privateEvent) {
nsCOMPtr<nsIDOMEventTarget> parentTarget(do_QueryInterface(mParent));
privateEvent->SetTarget(parentTarget);
}
}
//Bubbling stage
if (NS_EVENT_FLAG_CAPTURE != aFlags && mDocument) {
if (mParent) {
/*
* If there's a parent we pass the event to the parent...
*/
ret = mParent->HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
NS_EVENT_FLAG_BUBBLE, aEventStatus);
} else {
/*
* If there's no parent but there is a document (i.e. this is the
* root node) we pass the event to the document...
*/
ret = mDocument->HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
NS_EVENT_FLAG_BUBBLE, aEventStatus);
}
}
if (retarget) {
// The event originated beneath us, and we performed a retargeting.
// We need to restore the original target of the event.
nsCOMPtr<nsIPrivateDOMEvent> privateEvent = do_QueryInterface(*aDOMEvent);
if (privateEvent)
privateEvent->SetTarget(oldTarget);
}
if (NS_EVENT_FLAG_INIT & aFlags) {
// We're leaving the DOM event loop so if we created a DOM event,
// release here.
if (nsnull != *aDOMEvent) {
nsrefcnt rc;
NS_RELEASE2(*aDOMEvent, rc);
if (0 != rc) {
// Okay, so someone in the DOM loop (a listener, JS object)
// still has a ref to the DOM Event but the internal data
// hasn't been malloc'd. Force a copy of the data here so the
// DOM Event is still valid.
nsIPrivateDOMEvent *privateEvent;
if (NS_OK == (*aDOMEvent)->QueryInterface(NS_GET_IID(nsIPrivateDOMEvent), (void**)&privateEvent)) {
privateEvent->DuplicatePrivateData();
NS_RELEASE(privateEvent);
}
}
}
aDOMEvent = nsnull;
}
return ret;
}
PRUint32
nsGenericElement::BaseSizeOf(nsISizeOfHandler *aSizer) const
{
return 0;
}
NS_IMETHODIMP
nsGenericElement::GetContentID(PRUint32* aID)
{
*aID = mContentID;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::SetContentID(PRUint32 aID)
{
mContentID = aID;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::SetContainingNameSpace(nsINameSpace* aNameSpace)
{
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetContainingNameSpace(nsINameSpace*& aNameSpace) const
{
aNameSpace = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::MaybeTriggerAutoLink(nsIWebShell *aShell)
{
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetID(nsIAtom*& aResult) const
{
aResult = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetClasses(nsVoidArray& aArray) const
{
aArray.Clear();
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::HasClass(nsIAtom* aClass) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::GetContentStyleRules(nsISupportsArray* aRules)
{
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetInlineStyleRules(nsISupportsArray* aRules)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
PRInt32& aHint) const
{
aHint = NS_STYLE_HINT_CONTENT; // by default, never map attributes to style
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::Compact()
{
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::SetHTMLAttribute(nsIAtom* aAttribute,
const nsHTMLValue& aValue,
PRBool aNotify)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::GetHTMLAttribute(nsIAtom* aAttribute,
nsHTMLValue& aValue) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
nsMapAttributesFunc& aMapFunc) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::AttributeToString(nsIAtom* aAttribute,
const nsHTMLValue& aValue,
nsAWritableString& aResult) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::StringToAttribute(nsIAtom* aAttribute,
const nsAReadableString& aValue,
nsHTMLValue& aResult)
{
return NS_CONTENT_ATTR_NOT_THERE;
}
NS_IMETHODIMP
nsGenericElement::GetBaseURL(nsIURI*& aBaseURL) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::GetBaseTarget(nsAWritableString& aBaseTarget) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsGenericElement::RangeAdd(nsIDOMRange& aRange)
{
if (!mDOMSlots)
GetDOMSlots();
// lazy allocation of range list
if (!mDOMSlots->mRangeList) {
mDOMSlots->mRangeList = new nsVoidArray();
}
if (!mDOMSlots->mRangeList) {
return NS_ERROR_OUT_OF_MEMORY;
}
// Make sure we don't add a range that is already
// in the list!
PRInt32 i = mDOMSlots->mRangeList->IndexOf(&aRange);
if (i >= 0) {
// Range is already in the list, so there
// is nothing to do!
return NS_OK;
}
// dont need to addref - this call is made by the range object itself
PRBool rv = mDOMSlots->mRangeList->AppendElement(&aRange);
if (rv)
return NS_OK;
return NS_ERROR_FAILURE;
}
nsresult
nsGenericElement::RangeRemove(nsIDOMRange& aRange)
{
if (mDOMSlots && mDOMSlots->mRangeList) {
// dont need to release - this call is made by the range object itself
PRBool rv = mDOMSlots->mRangeList->RemoveElement(&aRange);
if (rv) {
if (mDOMSlots->mRangeList->Count() == 0) {
delete mDOMSlots->mRangeList;
mDOMSlots->mRangeList = nsnull;
MaybeClearDOMSlots();
}
return NS_OK;
}
}
return NS_ERROR_FAILURE;
}
nsresult
nsGenericElement::GetRangeList(nsVoidArray*& aResult) const
{
if (mDOMSlots && mDOMSlots->mRangeList) {
aResult = mDOMSlots->mRangeList;
}
else {
aResult = nsnull;
}
return NS_OK;
}
nsresult
nsGenericElement::SetFocus(nsIPresContext* aPresContext)
{
nsAutoString disabled;
if (NS_CONTENT_ATTR_HAS_VALUE == NS_STATIC_CAST(nsIContent *, this)->GetAttribute(kNameSpaceID_None, nsHTMLAtoms::disabled, disabled)) {
return NS_OK;
}
nsIEventStateManager* esm;
if (NS_OK == aPresContext->GetEventStateManager(&esm)) {
esm->SetContentState(this, NS_EVENT_STATE_FOCUS);
NS_RELEASE(esm);
}
return NS_OK;
}
nsresult
nsGenericElement::RemoveFocus(nsIPresContext* aPresContext)
{
return NS_OK;
}
nsresult
nsGenericElement::GetBindingParent(nsIContent** aContent)
{
*aContent = mDOMSlots ? mDOMSlots->mBindingParent : nsnull;
NS_IF_ADDREF(*aContent);
return NS_OK;
}
nsresult
nsGenericElement::SetBindingParent(nsIContent* aParent)
{
if (!mDOMSlots)
GetDOMSlots();
mDOMSlots->mBindingParent = aParent; // Weak, so no addref happens.
if (aParent) {
PRInt32 count;
ChildCount(count);
for (PRInt32 i = 0; i < count; i++) {
nsCOMPtr<nsIContent> child;
ChildAt(i, *getter_AddRefs(child));
child->SetBindingParent(aParent);
}
}
return NS_OK;
}
//----------------------------------------------------------------------
nsresult
nsGenericElement::RenderFrame(nsIPresContext* aPresContext)
{
nsPoint offset;
nsRect bounds;
// Trigger damage repairs for each frame that maps the given content
PRInt32 i, n;
n = mDocument->GetNumberOfShells();
for (i = 0; i < n; i++) {
nsIPresShell* shell;
shell = mDocument->GetShellAt(i);
nsIFrame* frame;
shell->GetPrimaryFrameFor(this, &frame);
while (nsnull != frame) {
nsIViewManager* vm;
nsIView* view;
// Determine damaged area and tell view manager to redraw it
frame->GetRect(bounds);
bounds.x = bounds.y = 0;
// XXX We should tell the frame the damage area and let it invalidate
// itself. Add some API calls to nsIFrame to allow a caller to invalidate
// parts of the frame...
frame->GetOffsetFromView(aPresContext, offset, &view);
view->GetViewManager(vm);
bounds.x += offset.x;
bounds.y += offset.y;
vm->UpdateView(view, bounds, NS_VMREFRESH_IMMEDIATE);
NS_RELEASE(vm);
// If frame has a next-in-flow, repaint it too
frame->GetNextInFlow(&frame);
}
NS_RELEASE(shell);
}
return NS_OK;
}
//----------------------------------------------------------------------
// nsIScriptObjectOwner implementation
nsresult
nsGenericElement::GetScriptObject(nsIScriptContext* aContext,
void** aScriptObject)
{
nsresult res = NS_OK;
nsDOMSlots *slots = GetDOMSlots();
if (!slots->mScriptObject) {
nsIDOMScriptObjectFactory *factory;
res = GetScriptObjectFactory(&factory);
if (NS_OK != res) {
return res;
}
nsAutoString tag;
mNodeInfo->GetName(tag);
res = factory->NewScriptElement(tag, aContext,
NS_STATIC_CAST(nsIHTMLContent *, this),
mParent ? (nsISupports*)mParent : (nsISupports*)mDocument,
(void**)&slots->mScriptObject);
NS_RELEASE(factory);
NS_WARN_IF_FALSE(slots->mScriptObject,
"Eeek! Cound't create script object!");
if (mDocument && slots->mScriptObject) {
aContext->AddNamedReference((void *)&slots->mScriptObject,
slots->mScriptObject,
"nsGenericElement::mScriptObject");
// See if we have a frame.
nsCOMPtr<nsIPresShell> shell = getter_AddRefs(mDocument->GetShellAt(0));
if (shell) {
nsIFrame* frame;
shell->GetPrimaryFrameFor(this, &frame);
if (!frame) {
// We must ensure that the XBL Binding is installed before we hand
// back this object.
nsCOMPtr<nsIBindingManager> bindingManager;
mDocument->GetBindingManager(getter_AddRefs(bindingManager));
nsCOMPtr<nsIXBLBinding> binding;
bindingManager->GetBinding(this, getter_AddRefs(binding));
if (!binding) {
nsCOMPtr<nsIScriptGlobalObject> global;
mDocument->GetScriptGlobalObject(getter_AddRefs(global));
nsCOMPtr<nsIDOMViewCSS> viewCSS(do_QueryInterface(global));
if (viewCSS) {
nsCOMPtr<nsIDOMCSSStyleDeclaration> cssDecl;
nsAutoString empty;
nsCOMPtr<nsIDOMElement> elt(do_QueryInterface(NS_STATIC_CAST(nsIHTMLContent *, this)));
viewCSS->GetComputedStyle(elt, empty, getter_AddRefs(cssDecl));
if (cssDecl) {
nsAutoString behavior; behavior.Assign(NS_LITERAL_STRING("-moz-binding"));
nsAutoString value;
cssDecl->GetPropertyValue(behavior, value);
if (!value.IsEmpty()) {
// We have a binding that must be installed.
nsresult rv;
PRBool dummy;
NS_WITH_SERVICE(nsIXBLService, xblService, "@mozilla.org/xbl;1", &rv);
xblService->LoadBindings(this, value, PR_FALSE, getter_AddRefs(binding), &dummy);
if (binding) {
binding->ExecuteAttachedHandler();
}
}
}
}
}
}
}
}
}
*aScriptObject = slots->mScriptObject;
return res;
}
nsresult
nsGenericElement::SetScriptObject(void *aScriptObject)
{
nsDOMSlots *slots = GetDOMSlots();
slots->mScriptObject = aScriptObject;
if (!aScriptObject) {
if (slots->mListenerManager) {
slots->mListenerManager->RemoveAllListeners(PR_TRUE);
}
MaybeClearDOMSlots();
}
return NS_OK;
}
//----------------------------------------------------------------------
nsresult
nsGenericElement::GetListenerManager(nsIEventListenerManager** aResult)
{
nsDOMSlots *slots = GetDOMSlots();
if (nsnull != slots->mListenerManager) {
NS_ADDREF(slots->mListenerManager);
*aResult = slots->mListenerManager;
return NS_OK;
}
nsresult rv = NS_NewEventListenerManager(aResult);
if (NS_OK == rv) {
slots->mListenerManager = *aResult;
NS_ADDREF(slots->mListenerManager);
slots->mListenerManager->SetListenerTarget(NS_STATIC_CAST(nsIHTMLContent *, this));
}
return rv;
}
//----------------------------------------------------------------------
// nsIJSScriptObject implementation
PRBool
nsGenericElement::AddProperty(JSContext *aContext, JSObject *aObj, jsval aID,
jsval *aVp)
{
return PR_TRUE;
}
PRBool
nsGenericElement::DeleteProperty(JSContext *aContext, JSObject *aObj,
jsval aID, jsval *aVp)
{
return PR_TRUE;
}
PRBool
nsGenericElement::GetProperty(JSContext *aContext, JSObject *aObj, jsval aID,
jsval *aVp)
{
return PR_TRUE;
}
PRBool
nsGenericElement::SetProperty(JSContext *aContext, JSObject *aObj, jsval aID,
jsval *aVp)
{
if (JS_TypeOfValue(aContext, *aVp) == JSTYPE_FUNCTION &&
JSVAL_IS_STRING(aID)) {
nsAutoString propName, prefix;
propName.Assign(NS_REINTERPRET_CAST(const PRUnichar*, JS_GetStringChars(JS_ValueToString(aContext, aID))));
if (propName.Length() > 2)
prefix.Assign(propName.GetUnicode(), 2);
if (prefix.Equals(NS_LITERAL_STRING("on"))) {
nsCOMPtr<nsIAtom> atom = getter_AddRefs(NS_NewAtom(propName));
nsIEventListenerManager *manager = nsnull;
if (atom.get() == nsLayoutAtoms::onmousedown || atom.get() == nsLayoutAtoms::onmouseup || atom.get() == nsLayoutAtoms::onclick ||
atom.get() == nsLayoutAtoms::onmouseover || atom.get() == nsLayoutAtoms::onmouseout) {
if (NS_OK == GetListenerManager(&manager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if (NS_FAILED(nsContentUtils::GetStaticScriptContext(aContext, (JSObject*)GetDOMSlots()->mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != manager->RegisterScriptEventListener(mScriptCX, this, atom, kIDOMMouseListenerIID)) {
NS_RELEASE(manager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onkeydown || atom.get() == nsLayoutAtoms::onkeyup || atom.get() == nsLayoutAtoms::onkeypress) {
if (NS_OK == GetListenerManager(&manager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if (NS_FAILED(nsContentUtils::GetStaticScriptContext(aContext, (JSObject*)GetDOMSlots()->mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != manager->RegisterScriptEventListener(mScriptCX, this, atom, kIDOMKeyListenerIID)) {
NS_RELEASE(manager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onmousemove) {
if (NS_OK == GetListenerManager(&manager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if (NS_FAILED(nsContentUtils::GetStaticScriptContext(aContext, (JSObject*)GetDOMSlots()->mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != manager->RegisterScriptEventListener(mScriptCX, this, atom, kIDOMMouseMotionListenerIID)) {
NS_RELEASE(manager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onfocus || atom.get() == nsLayoutAtoms::onblur) {
if (NS_OK == GetListenerManager(&manager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if (NS_FAILED(nsContentUtils::GetStaticScriptContext(aContext, (JSObject*)GetDOMSlots()->mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != manager->RegisterScriptEventListener(mScriptCX, this, atom, kIDOMFocusListenerIID)) {
NS_RELEASE(manager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onsubmit || atom.get() == nsLayoutAtoms::onreset || atom.get() == nsLayoutAtoms::onchange ||
atom.get() == nsLayoutAtoms::onselect) {
if (NS_OK == GetListenerManager(&manager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if (NS_FAILED(nsContentUtils::GetStaticScriptContext(aContext, (JSObject*)GetDOMSlots()->mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != manager->RegisterScriptEventListener(mScriptCX, this, atom, kIDOMFormListenerIID)) {
NS_RELEASE(manager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onload || atom.get() == nsLayoutAtoms::onunload || atom.get() == nsLayoutAtoms::onabort ||
atom.get() == nsLayoutAtoms::onerror) {
if (NS_OK == GetListenerManager(&manager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if (NS_FAILED(nsContentUtils::GetStaticScriptContext(aContext, (JSObject*)GetDOMSlots()->mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != manager->RegisterScriptEventListener(mScriptCX, this, atom, kIDOMLoadListenerIID)) {
NS_RELEASE(manager);
return PR_FALSE;
}
}
}
else if (atom.get() == nsLayoutAtoms::onpaint || atom.get() == nsLayoutAtoms::onresize ||
atom.get() == nsLayoutAtoms::onscroll) {
if (NS_OK == GetListenerManager(&manager)) {
nsCOMPtr<nsIScriptContext> mScriptCX;
if (NS_FAILED(nsContentUtils::GetStaticScriptContext(aContext, (JSObject*)GetDOMSlots()->mScriptObject, getter_AddRefs(mScriptCX))) ||
NS_OK != manager->RegisterScriptEventListener(mScriptCX, this,
atom, kIDOMPaintListenerIID)) {
NS_RELEASE(manager);
return PR_FALSE;
}
}
}
NS_IF_RELEASE(manager);
}
}
return PR_TRUE;
}
PRBool
nsGenericElement::EnumerateProperty(JSContext *aContext, JSObject *aObj)
{
return PR_TRUE;
}
PRBool
nsGenericElement::Resolve(JSContext *aContext, JSObject *aObj, jsval aID,
PRBool* aDidDefineProperty)
{
*aDidDefineProperty = PR_FALSE;
return PR_TRUE;
}
PRBool
nsGenericElement::Convert(JSContext *aContext, JSObject *aObj, jsval aID)
{
return PR_TRUE;
}
void
nsGenericElement::Finalize(JSContext *aContext, JSObject *aObj)
{
}
// Generic DOMNode implementations
/*
* This helper function checks if aChild is the same as aNode or if
* aChild is one of aNode's ancestors. -- jst@citec.fi
*/
static PRBool isSelfOrAncestor(nsIContent *aNode, nsIContent *aChild)
{
if (aNode == aChild)
return PR_TRUE;
nsCOMPtr<nsIContent> parent, tmpNode;
PRInt32 childCount = 0;
/*
* If aChild doesn't have children it can't be our ancestor
*/
aChild->ChildCount(childCount);
if (childCount <= 0) {
return PR_FALSE;
}
aNode->GetParent(*getter_AddRefs(parent));
while (parent) {
if (parent.get() == aChild) {
/*
* We found aChild as one of our ancestors
*/
return PR_TRUE;
}
parent->GetParent(*getter_AddRefs(tmpNode));
parent = tmpNode;
}
return PR_FALSE;
}
nsresult
nsGenericElement::doInsertBefore(nsIDOMNode* aNewChild,
nsIDOMNode* aRefChild,
nsIDOMNode** aReturn)
{
if (!aReturn) {
return NS_ERROR_NULL_POINTER;
}
*aReturn = nsnull;
if (!aNewChild) {
return NS_ERROR_NULL_POINTER;
}
nsCOMPtr<nsIContent> refContent;
nsresult res = NS_OK;
PRInt32 refPos = 0;
if (aRefChild) {
refContent = do_QueryInterface(aRefChild, &res);
if (NS_FAILED(res)) {
/*
* If aRefChild doesn't support the nsIContent interface it can't be
* an existing child of this node.
*/
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
IndexOf(refContent, refPos);
if (refPos < 0) {
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
} else {
ChildCount(refPos);
}
PRUint16 nodeType = 0;
res = aNewChild->GetNodeType(&nodeType);
if (NS_FAILED(res)) {
return res;
}
switch (nodeType) {
case nsIDOMNode::ELEMENT_NODE :
case nsIDOMNode::TEXT_NODE :
case nsIDOMNode::CDATA_SECTION_NODE :
case nsIDOMNode::ENTITY_REFERENCE_NODE :
case nsIDOMNode::PROCESSING_INSTRUCTION_NODE :
case nsIDOMNode::COMMENT_NODE :
break;
case nsIDOMNode::DOCUMENT_FRAGMENT_NODE :
break;
default:
/*
* aNewChild is of invalid type.
*/
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
nsCOMPtr<nsIContent> newContent(do_QueryInterface(aNewChild, &res));
if (NS_FAILED(res)) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
/*
* Make sure the new child is not "this" node or one of this nodes
* ancestors. Doing this check here should be safe even if newContent
* is a document fragment.
*/
if (isSelfOrAncestor(this, newContent)) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
/*
* Check if this is a document fragment. If it is, we need
* to remove the children of the document fragment and add them
* individually (i.e. we don't add the actual document fragment).
*/
if (nodeType == nsIDOMNode::DOCUMENT_FRAGMENT_NODE) {
nsCOMPtr<nsIContent> childContent;
PRInt32 count, i;
newContent->ChildCount(count);
/*
* Iterate through the fragments children, removing each from
* the fragment and inserting it into the child list of its
* new parent.
*/
for (i = 0; i < count; i++) {
// Always get and remove the first child, since the child indexes
// change as we go along.
res = newContent->ChildAt(0, *getter_AddRefs(childContent));
if (NS_FAILED(res)) {
return res;
}
res = newContent->RemoveChildAt(0, PR_FALSE);
if (NS_FAILED(res)) {
return res;
}
childContent->SetDocument(mDocument, PR_TRUE, PR_TRUE);
// Insert the child and increment the insertion position
res = InsertChildAt(childContent, refPos++, PR_TRUE);
if (NS_FAILED(res)) {
return res;
}
}
} else {
nsCOMPtr<nsIDOMNode> oldParent;
res = aNewChild->GetParentNode(getter_AddRefs(oldParent));
if (NS_FAILED(res)) {
return res;
}
/*
* Remove the element from the old parent if one exists, since oldParent
* is a nsIDOMNode this will do the right thing even if the parent of
* aNewChild is a document. This code also handles the case where the
* new child is alleady a child of this node-- jst@citec.fi
*/
if (oldParent) {
nsCOMPtr<nsIDOMNode> tmpNode;
PRInt32 origChildCount, newChildCount;
ChildCount(origChildCount);
/*
* We don't care here if the return fails or not.
*/
oldParent->RemoveChild(aNewChild, getter_AddRefs(tmpNode));
ChildCount(newChildCount);
/*
* Check if our child count changed during the RemoveChild call, if
* it did then oldParent is most likely this node. In this case we
* must check if refPos is still correct (unless it's zero).
*/
if (refPos && origChildCount != newChildCount) {
if (refContent) {
/*
* If we did get aRefChild we check if that is now at refPos - 1,
* this will happend if the new child was one of aRefChilds'
* previous siblings.
*/
nsCOMPtr<nsIContent> tmpContent;
ChildAt(refPos - 1, *getter_AddRefs(tmpContent));
if (refContent == tmpContent) {
refPos--;
}
} else {
/*
* If we didn't get aRefChild we simply decrement refPos.
*/
refPos--;
}
}
}
newContent->SetDocument(mDocument, PR_TRUE, PR_TRUE);
res = InsertChildAt(newContent, refPos, PR_TRUE);
if (NS_FAILED(res)) {
return res;
}
}
*aReturn = aNewChild;
NS_ADDREF(*aReturn);
return res;
}
nsresult
nsGenericElement::doReplaceChild(nsIDOMNode* aNewChild,
nsIDOMNode* aOldChild,
nsIDOMNode** aReturn)
{
if (!aReturn) {
return NS_ERROR_NULL_POINTER;
}
*aReturn = nsnull;
if (!aNewChild || !aOldChild) {
return NS_ERROR_NULL_POINTER;
}
nsresult res = NS_OK;
PRInt32 oldPos = 0;
nsCOMPtr<nsIContent> oldContent(do_QueryInterface(aOldChild, &res));
if (NS_FAILED(res)) {
/*
* If aOldChild doesn't support the nsIContent interface it can't be
* an existing child of this node.
*/
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
IndexOf(oldContent, oldPos);
if (oldPos < 0) {
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
nsCOMPtr<nsIContent> replacedChild;
ChildAt(oldPos, *getter_AddRefs(replacedChild));
PRUint16 nodeType = 0;
res = aNewChild->GetNodeType(&nodeType);
if (NS_FAILED(res)) {
return res;
}
switch (nodeType) {
case nsIDOMNode::ELEMENT_NODE :
case nsIDOMNode::TEXT_NODE :
case nsIDOMNode::CDATA_SECTION_NODE :
case nsIDOMNode::ENTITY_REFERENCE_NODE :
case nsIDOMNode::PROCESSING_INSTRUCTION_NODE :
case nsIDOMNode::COMMENT_NODE :
case nsIDOMNode::DOCUMENT_FRAGMENT_NODE :
break;
default:
/*
* aNewChild is of invalid type.
*/
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
nsCOMPtr<nsIContent> newContent(do_QueryInterface(aNewChild, &res));
if (NS_FAILED(res)) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
nsCOMPtr<nsIDocument> document;
GetDocument(*getter_AddRefs(document));
/*
* Make sure the new child is not "this" node or one of this nodes
* ancestors. Doing this check here should be safe even if newContent
* is a document fragment.
*/
if (isSelfOrAncestor(this, newContent)) {
return NS_ERROR_DOM_HIERARCHY_REQUEST_ERR;
}
/*
* Check if this is a document fragment. If it is, we need
* to remove the children of the document fragment and add them
* individually (i.e. we don't add the actual document fragment).
*/
if (nodeType == nsIDOMNode::DOCUMENT_FRAGMENT_NODE) {
nsCOMPtr<nsIContent> childContent;
PRInt32 count, i;
newContent->ChildCount(count);
/*
* Iterate through the fragments children, removing each from
* the fragment and inserting it into the child list of its
* new parent.
*/
for (i =0; i < count; i++) {
// Always get and remove the first child, since the child indexes
// change as we go along.
res = newContent->ChildAt(0, *getter_AddRefs(childContent));
if (NS_FAILED(res)) {
return res;
}
res = newContent->RemoveChildAt(0, PR_FALSE);
if (NS_FAILED(res)) {
return res;
}
childContent->SetDocument(document, PR_TRUE, PR_TRUE);
// Insert the child and increment the insertion position
if (i) {
res = InsertChildAt(childContent, oldPos++, PR_TRUE);
} else {
res = ReplaceChildAt(childContent, oldPos++, PR_TRUE);
}
if (NS_FAILED(res)) {
return res;
}
}
} else {
nsCOMPtr<nsIDOMNode> oldParent;
res = aNewChild->GetParentNode(getter_AddRefs(oldParent));
if (NS_FAILED(res)) {
return res;
}
/*
* Remove the element from the old parent if one exists, since oldParent
* is a nsIDOMNode this will do the right thing even if the parent of
* aNewChild is a document. This code also handles the case where the
* new child is alleady a child of this node-- jst@citec.fi
*/
if (oldParent) {
nsCOMPtr<nsIDOMNode> tmpNode;
PRInt32 origChildCount, newChildCount;
ChildCount(origChildCount);
/*
* We don't care here if the return fails or not.
*/
oldParent->RemoveChild(aNewChild, getter_AddRefs(tmpNode));
ChildCount(newChildCount);
/*
* Check if our child count changed during the RemoveChild call, if
* it did then oldParent is most likely this node. In this case we
* must check if oldPos is still correct (unless it's zero).
*/
if (oldPos && origChildCount != newChildCount) {
/*
* Check if aOldChild is now at oldPos - 1, this will happend if
* the new child was one of aOldChilds' previous siblings.
*/
nsCOMPtr<nsIContent> tmpContent;
ChildAt(oldPos - 1, *getter_AddRefs(tmpContent));
if (oldContent == tmpContent) {
oldPos--;
}
}
}
newContent->SetDocument(document, PR_TRUE, PR_TRUE);
res = ReplaceChildAt(newContent, oldPos, PR_TRUE);
if (NS_FAILED(res)) {
return res;
}
}
return replacedChild->QueryInterface(NS_GET_IID(nsIDOMNode),
(void **)aReturn);
}
nsresult
nsGenericElement::doRemoveChild(nsIDOMNode* aOldChild,
nsIDOMNode** aReturn)
{
*aReturn = nsnull;
if (!aOldChild) {
return NS_ERROR_NULL_POINTER;
}
nsresult res;
nsCOMPtr<nsIContent> content(do_QueryInterface(aOldChild, &res));
if (NS_FAILED(res)) {
/*
* If we're asked to remove something that doesn't support nsIContent
* it can not be one of our children, i.e. we return NOT_FOUND_ERR.
*/
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
PRInt32 pos;
IndexOf(content, pos);
if (pos < 0) {
/*
* aOldChild isn't one of our children.
*/
return NS_ERROR_DOM_NOT_FOUND_ERR;
}
res = RemoveChildAt(pos, PR_TRUE);
*aReturn = aOldChild;
NS_ADDREF(aOldChild);
return res;
}
//----------------------------------------------------------------------
// nsISupports implementation
NS_IMETHODIMP
nsGenericElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
nsISupports *inst = nsnull;
if (aIID.Equals(NS_GET_IID(nsISupports))) {
inst = NS_STATIC_CAST(nsIContent *, this);
} else if (aIID.Equals(NS_GET_IID(nsIContent))) {
inst = NS_STATIC_CAST(nsIContent *, this);
} else if (aIID.Equals(NS_GET_IID(nsIStyledContent))) {
inst = NS_STATIC_CAST(nsIStyledContent *, this);
} else if (aIID.Equals(NS_GET_IID(nsIDOMEventReceiver)) ||
aIID.Equals(NS_GET_IID(nsIDOMEventTarget))) {
nsCOMPtr<nsIEventListenerManager> man;
GetListenerManager(getter_AddRefs(man));
if (man) {
return man->QueryInterface(aIID, aInstancePtr);
}
return NS_NOINTERFACE;
} else if (aIID.Equals(NS_GET_IID(nsIScriptObjectOwner))) {
inst = NS_STATIC_CAST(nsIScriptObjectOwner *, this);
} else if (aIID.Equals(NS_GET_IID(nsIJSScriptObject))) {
inst = NS_STATIC_CAST(nsIJSScriptObject *, this);
}
else if (mDOMSlots && mDOMSlots->mScriptObject && mDocument) {
nsCOMPtr<nsIBindingManager> manager;
mDocument->GetBindingManager(getter_AddRefs(manager));
if (manager)
return manager->GetBindingImplementation(NS_STATIC_CAST(nsIStyledContent*, this), mDOMSlots->mScriptObject,
aIID, aInstancePtr);
return NS_NOINTERFACE;
}
else {
return NS_NOINTERFACE;
}
NS_ADDREF(inst);
*aInstancePtr = inst;
return NS_OK;
}
NS_IMPL_ADDREF(nsGenericElement)
NS_IMPL_RELEASE(nsGenericElement)
//----------------------------------------------------------------------
nsresult
nsGenericElement::TriggerLink(nsIPresContext* aPresContext,
nsLinkVerb aVerb,
nsIURI* aBaseURL,
const nsString& aURLSpec,
const nsString& aTargetSpec,
PRBool aClick)
{
nsCOMPtr<nsILinkHandler> handler;
nsresult rv = aPresContext->GetLinkHandler(getter_AddRefs(handler));
if (NS_FAILED(rv) || (nsnull == handler)) return rv;
// Resolve url to an absolute url
nsAutoString absURLSpec;
if (nsnull != aBaseURL) {
rv = NS_MakeAbsoluteURI(absURLSpec, aURLSpec, aBaseURL);
if (NS_FAILED(rv)) return rv;
}
else {
absURLSpec.Assign(aURLSpec);
}
// Now pass on absolute url to the click handler
if (aClick) {
nsresult proceed = NS_OK;
// Check that this page is allowed to load this URI.
NS_WITH_SERVICE(nsIScriptSecurityManager, securityManager,
NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
nsCOMPtr<nsIURI> absURI;
if (NS_SUCCEEDED(rv))
rv = NS_NewURI(getter_AddRefs(absURI), absURLSpec, aBaseURL);
if (NS_SUCCEEDED(rv))
proceed = securityManager->CheckLoadURI(aBaseURL, absURI, nsIScriptSecurityManager::STANDARD);
// Only pass off the click event if the script security manager
// says it's ok.
if (NS_SUCCEEDED(proceed))
handler->OnLinkClick(this, aVerb, absURLSpec.GetUnicode(),
aTargetSpec.GetUnicode());
}
else {
handler->OnOverLink(this, absURLSpec.GetUnicode(),
aTargetSpec.GetUnicode());
}
return rv;
}
nsresult
nsGenericElement::AddScriptEventListener(nsIAtom* aAttribute,
const nsAReadableString& aValue,
REFNSIID aIID)
{
nsresult ret = NS_OK;
nsCOMPtr<nsIScriptContext> context = nsnull;
nsCOMPtr<nsIScriptGlobalObject> global = nsnull;
JSContext* cx = nsnull;
//Try to get context from doc
if (mDocument) {
if (NS_SUCCEEDED(mDocument->GetScriptGlobalObject(getter_AddRefs(global))) && global) {
NS_ENSURE_SUCCESS(global->GetContext(getter_AddRefs(context)), NS_ERROR_FAILURE);
}
}
if (!context) {
// Get JSContext from stack.
nsCOMPtr<nsIThreadJSContextStack> stack(do_GetService("@mozilla.org/js/xpc/ContextStack;1"));
NS_ENSURE_TRUE(stack, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(stack->Peek(&cx), NS_ERROR_FAILURE);
if(!cx) {
stack->GetSafeJSContext(&cx);
NS_ENSURE_TRUE(cx, NS_ERROR_FAILURE);
}
nsContentUtils::GetDynamicScriptContext(cx, getter_AddRefs(context));
NS_ENSURE_TRUE(context, NS_ERROR_FAILURE);
}
//Attributes on the body and frameset tags get set on the global object
if (mNodeInfo->Equals(nsHTMLAtoms::body) ||
mNodeInfo->Equals(nsHTMLAtoms::frameset)) {
if (!global && cx) {
nsContentUtils::GetDynamicScriptGlobal(cx, getter_AddRefs(global));
NS_ENSURE_TRUE(global, NS_ERROR_FAILURE);
}
nsCOMPtr<nsIDOMEventReceiver> receiver(do_QueryInterface(global));
NS_ENSURE_TRUE(receiver, NS_ERROR_FAILURE);
nsCOMPtr<nsIEventListenerManager> manager;
receiver->GetListenerManager(getter_AddRefs(manager));
if (manager) {
nsCOMPtr<nsIScriptObjectOwner> objOwner(do_QueryInterface(global));
if (objOwner) {
ret = manager->AddScriptEventListener(context, objOwner, aAttribute,
aValue, aIID, PR_FALSE);
}
}
}
else {
nsCOMPtr<nsIEventListenerManager> manager;
GetListenerManager(getter_AddRefs(manager));
if (manager) {
ret = manager->AddScriptEventListener(context, this, aAttribute, aValue,
aIID, PR_TRUE);
}
}
return ret;
}
//----------------------------------------------------------------------
struct nsGenericAttribute
{
nsGenericAttribute(nsINodeInfo *aNodeInfo, const nsAReadableString& aValue)
: mNodeInfo(aNodeInfo),
mValue(aValue)
{
NS_IF_ADDREF(mNodeInfo);
}
~nsGenericAttribute(void)
{
NS_IF_RELEASE(mNodeInfo);
}
#ifdef DEBUG
nsresult SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const {
if (!aResult) {
return NS_ERROR_NULL_POINTER;
}
PRUint32 sum = sizeof(*this) - sizeof(mValue);
PRUint32 ssize;
mValue.SizeOf(aSizer, &ssize);
sum += ssize;
*aResult = sum;
return NS_OK;
}
#endif
nsINodeInfo* mNodeInfo;
nsString mValue;
};
nsGenericContainerElement::nsGenericContainerElement()
{
mAttributes = nsnull;
}
nsGenericContainerElement::~nsGenericContainerElement()
{
PRInt32 count = mChildren.Count();
PRInt32 index;
for (index = 0; index < count; index++) {
nsIContent* kid = (nsIContent *)mChildren.ElementAt(index);
kid->SetParent(nsnull);
NS_RELEASE(kid);
}
if (nsnull != mAttributes) {
count = mAttributes->Count();
for (index = 0; index < count; index++) {
nsGenericAttribute* attr = (nsGenericAttribute*)mAttributes->ElementAt(index);
delete attr;
}
delete mAttributes;
}
}
nsresult
nsGenericContainerElement::NormalizeAttributeString(const nsAReadableString& aStr, nsINodeInfo*& aNodeInfo)
{
if (mAttributes) {
PRInt32 indx, count = mAttributes->Count();
for (indx = 0; indx < count; indx++) {
nsGenericAttribute* attr = (nsGenericAttribute*)mAttributes->ElementAt(indx);
if (attr->mNodeInfo->QualifiedNameEquals(aStr)) {
aNodeInfo = attr->mNodeInfo;
NS_ADDREF(aNodeInfo);
return NS_OK;
}
}
}
nsCOMPtr<nsINodeInfoManager> nimgr;
mNodeInfo->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_TRUE(nimgr, NS_ERROR_FAILURE);
return nimgr->GetNodeInfo(aStr, nsnull, kNameSpaceID_None, aNodeInfo);
}
nsresult
nsGenericContainerElement::CopyInnerTo(nsIContent* aSrcContent,
nsGenericContainerElement* aDst,
PRBool aDeep)
{
nsresult result = NS_OK;
if (nsnull != mAttributes) {
nsGenericAttribute* attr;
PRInt32 index;
PRInt32 count = mAttributes->Count();
for (index = 0; index < count; index++) {
attr = (nsGenericAttribute*)mAttributes->ElementAt(index);
// XXX Not very efficient, since SetAttribute does a linear search
// through its attributes before setting each attribute.
result = aDst->SetAttribute(attr->mNodeInfo, attr->mValue, PR_FALSE);
if (NS_OK != result) {
return result;
}
}
}
if (aDeep) {
PRInt32 index;
PRInt32 count = mChildren.Count();
for (index = 0; index < count; index++) {
nsIContent* child = (nsIContent*)mChildren.ElementAt(index);
if (nsnull != child) {
nsIDOMNode* node;
result = child->QueryInterface(NS_GET_IID(nsIDOMNode), (void**)&node);
if (NS_OK == result) {
nsIDOMNode* newNode;
result = node->CloneNode(aDeep, &newNode);
if (NS_OK == result) {
nsIContent* newContent;
result = newNode->QueryInterface(NS_GET_IID(nsIContent),
(void**)&newContent);
if (NS_OK == result) {
result = aDst->AppendChildTo(newContent, PR_FALSE);
NS_RELEASE(newContent);
}
NS_RELEASE(newNode);
}
NS_RELEASE(node);
}
if (NS_OK != result) {
return result;
}
}
}
}
return result;
}
nsresult
nsGenericContainerElement::GetChildNodes(nsIDOMNodeList** aChildNodes)
{
nsDOMSlots *slots = GetDOMSlots();
if (nsnull == slots->mChildNodes) {
slots->mChildNodes = new nsChildContentList(this);
if (nsnull == slots->mChildNodes) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(slots->mChildNodes);
}
return slots->mChildNodes->QueryInterface(NS_GET_IID(nsIDOMNodeList),
(void **)aChildNodes);
}
nsresult
nsGenericContainerElement::HasChildNodes(PRBool* aReturn)
{
if (0 != mChildren.Count()) {
*aReturn = PR_TRUE;
}
else {
*aReturn = PR_FALSE;
}
return NS_OK;
}
nsresult
nsGenericContainerElement::GetFirstChild(nsIDOMNode** aNode)
{
nsIContent *child = (nsIContent *)mChildren.ElementAt(0);
if (nsnull != child) {
nsresult res = child->QueryInterface(NS_GET_IID(nsIDOMNode),
(void**)aNode);
NS_ASSERTION(NS_OK == res, "Must be a DOM Node"); // must be a DOM Node
return res;
}
*aNode = nsnull;
return NS_OK;
}
nsresult
nsGenericContainerElement::GetLastChild(nsIDOMNode** aNode)
{
nsIContent *child = (nsIContent *)mChildren.ElementAt(mChildren.Count()-1);
if (nsnull != child) {
nsresult res = child->QueryInterface(NS_GET_IID(nsIDOMNode),
(void**)aNode);
NS_ASSERTION(NS_OK == res, "Must be a DOM Node"); // must be a DOM Node
return res;
}
*aNode = nsnull;
return NS_OK;
}
nsresult
nsGenericContainerElement::SetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
const nsAReadableString& aValue,
PRBool aNotify)
{
nsresult rv;
nsCOMPtr<nsINodeInfoManager> nimgr;
rv = mNodeInfo->GetNodeInfoManager(*getter_AddRefs(nimgr));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsINodeInfo> ni;
rv = nimgr->GetNodeInfo(aName, nsnull, aNameSpaceID,
*getter_AddRefs(ni));
NS_ENSURE_SUCCESS(rv, rv);
return SetAttribute(ni, aValue, aNotify);
}
// Static helper method
PRBool nsGenericElement::HasMutationListeners(nsIContent* aContent,
PRUint32 aType)
{
nsCOMPtr<nsIDocument> doc;
aContent->GetDocument(*getter_AddRefs(doc));
if (!doc)
return PR_FALSE;
nsCOMPtr<nsIScriptGlobalObject> global;
doc->GetScriptGlobalObject(getter_AddRefs(global));
if (!global)
return PR_FALSE;
nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(global));
if (!window)
return PR_FALSE;
PRBool set;
window->HasMutationListeners(aType, &set);
if (!set)
return PR_FALSE;
// We know a mutation listener is registered, but it might not
// be in our chain. Check quickly to see.
nsCOMPtr<nsIContent> curr = aContent;
nsCOMPtr<nsIEventListenerManager> manager;
while (curr) {
nsCOMPtr<nsIDOMEventReceiver> rec(do_QueryInterface(curr));
if (rec) {
rec->GetListenerManager(getter_AddRefs(manager));
if (manager) {
PRBool hasMutationListeners = PR_FALSE;
manager->HasMutationListeners(&hasMutationListeners);
if (hasMutationListeners)
return PR_TRUE;
}
}
nsCOMPtr<nsIContent> prev = curr;
prev->GetParent(*getter_AddRefs(curr));
}
nsCOMPtr<nsIDOMEventReceiver> rec(do_QueryInterface(doc));
if (rec) {
rec->GetListenerManager(getter_AddRefs(manager));
if (manager) {
PRBool hasMutationListeners = PR_FALSE;
manager->HasMutationListeners(&hasMutationListeners);
if (hasMutationListeners)
return PR_TRUE;
}
}
rec = do_QueryInterface(window);
if (rec) {
rec->GetListenerManager(getter_AddRefs(manager));
if (manager) {
PRBool hasMutationListeners = PR_FALSE;
manager->HasMutationListeners(&hasMutationListeners);
if (hasMutationListeners)
return PR_TRUE;
}
}
return PR_FALSE;
}
nsresult
nsGenericContainerElement::SetAttribute(nsINodeInfo* aNodeInfo,
const nsAReadableString& aValue,
PRBool aNotify)
{
NS_ENSURE_ARG_POINTER(aNodeInfo);
PRBool modification = PR_FALSE;
nsAutoString oldValue;
nsresult rv = NS_ERROR_OUT_OF_MEMORY;
if (!mAttributes) {
mAttributes = new nsVoidArray();
NS_ENSURE_TRUE(mAttributes, NS_ERROR_OUT_OF_MEMORY);
}
if (aNotify && (nsnull != mDocument)) {
mDocument->BeginUpdate();
}
nsGenericAttribute* attr;
PRInt32 index;
PRInt32 count = mAttributes->Count();
for (index = 0; index < count; index++) {
attr = (nsGenericAttribute*)mAttributes->ElementAt(index);
if (attr->mNodeInfo == aNodeInfo) {
oldValue = attr->mValue;
modification = PR_TRUE;
attr->mValue = aValue;
rv = NS_OK;
break;
}
}
if (index >= count) { // didn't find it
attr = new nsGenericAttribute(aNodeInfo, aValue);
NS_ENSURE_TRUE(attr, NS_ERROR_OUT_OF_MEMORY);
mAttributes->AppendElement(attr);
rv = NS_OK;
}
if (mDocument && NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIAtom> name;
PRInt32 nameSpaceID;
aNodeInfo->GetNameAtom(*getter_AddRefs(name));
aNodeInfo->GetNamespaceID(nameSpaceID);
nsCOMPtr<nsIBindingManager> bindingManager;
mDocument->GetBindingManager(getter_AddRefs(bindingManager));
nsCOMPtr<nsIXBLBinding> binding;
bindingManager->GetBinding(this, getter_AddRefs(binding));
if (binding)
binding->AttributeChanged(name, nameSpaceID, PR_FALSE);
if (HasMutationListeners(this, NS_EVENT_BITS_MUTATION_ATTRMODIFIED)) {
nsCOMPtr<nsIDOMEventTarget> node(do_QueryInterface(NS_STATIC_CAST(nsIContent *, this)));
nsMutationEvent mutation;
mutation.eventStructType = NS_MUTATION_EVENT;
mutation.message = NS_MUTATION_ATTRMODIFIED;
mutation.mTarget = node;
nsAutoString attrName;
name->ToString(attrName);
nsCOMPtr<nsIDOMAttr> attrNode;
GetAttributeNode(attrName, getter_AddRefs(attrNode));
mutation.mRelatedNode = attrNode;
mutation.mAttrName = name;
if (!oldValue.IsEmpty())
mutation.mPrevAttrValue = getter_AddRefs(NS_NewAtom(oldValue));
if (!aValue.IsEmpty())
mutation.mNewAttrValue = getter_AddRefs(NS_NewAtom(aValue));
mutation.mAttrChange = modification ? nsIDOMMutationEvent::MODIFICATION :
nsIDOMMutationEvent::ADDITION;
nsEventStatus status = nsEventStatus_eIgnore;
nsCOMPtr<nsIDOMEvent> domEvent;
HandleDOMEvent(nsnull, &mutation, getter_AddRefs(domEvent),
NS_EVENT_FLAG_INIT, &status);
}
if (aNotify) {
mDocument->AttributeChanged(this, nameSpaceID, name,
NS_STYLE_HINT_UNKNOWN);
mDocument->EndUpdate();
}
}
return rv;
}
nsresult
nsGenericContainerElement::GetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
nsAWritableString& aResult) const
{
nsCOMPtr<nsIAtom> prefix;
return GetAttribute(aNameSpaceID, aName, *getter_AddRefs(prefix), aResult);
}
nsresult
nsGenericContainerElement::GetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
nsIAtom*& aPrefix,
nsAWritableString& aResult) const
{
NS_ASSERTION(nsnull != aName, "must have attribute name");
if (nsnull == aName) {
return NS_ERROR_NULL_POINTER;
}
nsresult rv = NS_CONTENT_ATTR_NOT_THERE;
if (nsnull != mAttributes) {
PRInt32 count = mAttributes->Count();
PRInt32 index;
for (index = 0; index < count; index++) {
const nsGenericAttribute* attr = (const nsGenericAttribute*)mAttributes->ElementAt(index);
if ((aNameSpaceID == kNameSpaceID_Unknown ||
attr->mNodeInfo->NamespaceEquals(aNameSpaceID)) &&
(attr->mNodeInfo->Equals(aName))) {
attr->mNodeInfo->GetPrefixAtom(aPrefix);
aResult.Assign(attr->mValue);
if (0 < aResult.Length()) {
rv = NS_CONTENT_ATTR_HAS_VALUE;
}
else {
rv = NS_CONTENT_ATTR_NO_VALUE;
}
break;
}
}
}
if (rv == NS_CONTENT_ATTR_NOT_THERE) {
// In other cases we already set the out param.
// Since we are returning a success code we'd better do
// something about the out parameters (someone may have
// given us a non-empty string).
aResult.Truncate();
}
return rv;
}
nsresult
nsGenericContainerElement::UnsetAttribute(PRInt32 aNameSpaceID,
nsIAtom* aName, PRBool aNotify)
{
NS_ASSERTION(nsnull != aName, "must have attribute name");
if (nsnull == aName) {
return NS_ERROR_NULL_POINTER;
}
nsresult rv = NS_OK;
if (nsnull != mAttributes) {
PRInt32 count = mAttributes->Count();
PRInt32 index;
PRBool found = PR_FALSE;
for (index = 0; index < count; index++) {
nsGenericAttribute* attr = (nsGenericAttribute*)mAttributes->ElementAt(index);
if ((aNameSpaceID == kNameSpaceID_Unknown ||
attr->mNodeInfo->NamespaceEquals(aNameSpaceID)) &&
attr->mNodeInfo->Equals(aName)) {
if (aNotify && (nsnull != mDocument)) {
mDocument->BeginUpdate();
}
if (HasMutationListeners(this, NS_EVENT_BITS_MUTATION_ATTRMODIFIED)) {
nsCOMPtr<nsIDOMEventTarget> node(do_QueryInterface(NS_STATIC_CAST(nsIContent *, this)));
nsMutationEvent mutation;
mutation.eventStructType = NS_MUTATION_EVENT;
mutation.message = NS_MUTATION_ATTRMODIFIED;
mutation.mTarget = node;
nsAutoString attrName;
aName->ToString(attrName);
nsCOMPtr<nsIDOMAttr> attrNode;
GetAttributeNode(attrName, getter_AddRefs(attrNode));
mutation.mRelatedNode = attrNode;
mutation.mAttrName = aName;
if (!attr->mValue.IsEmpty())
mutation.mPrevAttrValue = getter_AddRefs(NS_NewAtom(attr->mValue));
mutation.mAttrChange = nsIDOMMutationEvent::REMOVAL;
nsEventStatus status = nsEventStatus_eIgnore;
nsCOMPtr<nsIDOMEvent> domEvent;
this->HandleDOMEvent(nsnull, &mutation, getter_AddRefs(domEvent),
NS_EVENT_FLAG_INIT, &status);
}
mAttributes->RemoveElementAt(index);
delete attr;
found = PR_TRUE;
break;
}
}
if (NS_SUCCEEDED(rv) && found && mDocument) {
nsCOMPtr<nsIBindingManager> bindingManager;
mDocument->GetBindingManager(getter_AddRefs(bindingManager));
nsCOMPtr<nsIXBLBinding> binding;
bindingManager->GetBinding(this, getter_AddRefs(binding));
if (binding)
binding->AttributeChanged(aName, aNameSpaceID, PR_TRUE);
if (aNotify) {
mDocument->AttributeChanged(this, aNameSpaceID, aName,
NS_STYLE_HINT_UNKNOWN);
mDocument->EndUpdate();
}
}
}
return rv;
}
nsresult
nsGenericContainerElement::GetAttributeNameAt(PRInt32 aIndex,
PRInt32& aNameSpaceID,
nsIAtom*& aName,
nsIAtom*& aPrefix) const
{
if (nsnull != mAttributes) {
nsGenericAttribute* attr = (nsGenericAttribute*)mAttributes->ElementAt(aIndex);
if (nsnull != attr) {
attr->mNodeInfo->GetNamespaceID(aNameSpaceID);
attr->mNodeInfo->GetNameAtom(aName);
attr->mNodeInfo->GetPrefixAtom(aPrefix);
return NS_OK;
}
}
aNameSpaceID = kNameSpaceID_None;
aName = nsnull;
return NS_ERROR_ILLEGAL_VALUE;
}
nsresult
nsGenericContainerElement::GetAttributeCount(PRInt32& aResult) const
{
if (nsnull != mAttributes) {
aResult = mAttributes->Count();
}
else {
aResult = 0;
}
return NS_OK;
}
void
nsGenericContainerElement::ListAttributes(FILE* out) const
{
PRInt32 index, count;
GetAttributeCount(count);
for (index = 0; index < count; index++) {
const nsGenericAttribute* attr = (const nsGenericAttribute*)mAttributes->ElementAt(index);
nsAutoString buffer;
// name
nsAutoString name;
attr->mNodeInfo->GetQualifiedName(name);
buffer.Append(name);
// value
buffer.AppendWithConversion("=");
buffer.Append(attr->mValue);
fputs(" ", out);
fputs(buffer, out);
}
}
nsresult
nsGenericContainerElement::List(FILE* out, PRInt32 aIndent) const
{
NS_PRECONDITION(nsnull != mDocument, "bad content");
PRInt32 index;
for (index = aIndent; --index >= 0; ) fputs(" ", out);
nsAutoString buf;
mNodeInfo->GetQualifiedName(buf);
fputs(buf, out);
fprintf(out, "@%p", this);
ListAttributes(out);
fprintf(out, " refcount=%d<", mRefCnt);
PRBool canHaveKids;
CanContainChildren(canHaveKids);
if (canHaveKids) {
fputs("\n", out);
PRInt32 kids;
ChildCount(kids);
for (index = 0; index < kids; index++) {
nsIContent* kid;
ChildAt(index, kid);
kid->List(out, aIndent + 1);
NS_RELEASE(kid);
}
for (index = aIndent; --index >= 0; ) fputs(" ", out);
}
fputs(">\n", out);
return NS_OK;
}
nsresult
nsGenericContainerElement::DumpContent(FILE* out, PRInt32 aIndent,PRBool aDumpAll) const {
return NS_OK;
}
nsresult
nsGenericContainerElement::CanContainChildren(PRBool& aResult) const
{
aResult = PR_TRUE;
return NS_OK;
}
nsresult
nsGenericContainerElement::ChildCount(PRInt32& aCount) const
{
aCount = mChildren.Count();
return NS_OK;
}
nsresult
nsGenericContainerElement::ChildAt(PRInt32 aIndex,
nsIContent*& aResult) const
{
nsIContent *child = (nsIContent *)mChildren.ElementAt(aIndex);
if (nsnull != child) {
NS_ADDREF(child);
}
aResult = child;
return NS_OK;
}
nsresult
nsGenericContainerElement::IndexOf(nsIContent* aPossibleChild,
PRInt32& aIndex) const
{
NS_PRECONDITION(nsnull != aPossibleChild, "null ptr");
aIndex = mChildren.IndexOf(aPossibleChild);
return NS_OK;
}
nsresult
nsGenericContainerElement::InsertChildAt(nsIContent* aKid,
PRInt32 aIndex,
PRBool aNotify)
{
NS_PRECONDITION(nsnull != aKid, "null ptr");
nsIDocument* doc = mDocument;
if (aNotify && (nsnull != doc)) {
doc->BeginUpdate();
}
PRBool rv = mChildren.InsertElementAt(aKid, aIndex);/* XXX fix up void array api to use nsresult's*/
if (rv) {
NS_ADDREF(aKid);
aKid->SetParent(this);
nsRange::OwnerChildInserted(this, aIndex);
if (nsnull != doc) {
aKid->SetDocument(doc, PR_FALSE, PR_TRUE);
if (aNotify) {
doc->ContentInserted(this, aKid, aIndex);
}
if (HasMutationListeners(this, NS_EVENT_BITS_MUTATION_NODEINSERTED)) {
nsCOMPtr<nsIDOMEventTarget> node(do_QueryInterface(aKid));
nsMutationEvent mutation;
mutation.eventStructType = NS_MUTATION_EVENT;
mutation.message = NS_MUTATION_NODEINSERTED;
mutation.mTarget = node;
nsCOMPtr<nsIDOMNode> relNode(do_QueryInterface(NS_STATIC_CAST(nsIContent *, this)));
mutation.mRelatedNode = relNode;
nsEventStatus status = nsEventStatus_eIgnore;
nsCOMPtr<nsIDOMEvent> domEvent;
aKid->HandleDOMEvent(nsnull, &mutation, getter_AddRefs(domEvent),
NS_EVENT_FLAG_INIT, &status);
}
}
}
if (aNotify && (nsnull != doc)) {
doc->EndUpdate();
}
return NS_OK;
}
nsresult
nsGenericContainerElement::ReplaceChildAt(nsIContent* aKid,
PRInt32 aIndex,
PRBool aNotify)
{
NS_PRECONDITION(nsnull != aKid, "null ptr");
nsIDocument* doc = mDocument;
if (aNotify && (nsnull != mDocument)) {
doc->BeginUpdate();
}
nsIContent* oldKid = (nsIContent *)mChildren.ElementAt(aIndex);
nsRange::OwnerChildReplaced(this, aIndex, oldKid);
PRBool rv = mChildren.ReplaceElementAt(aKid, aIndex);
if (rv) {
NS_ADDREF(aKid);
aKid->SetParent(this);
if (nsnull != doc) {
aKid->SetDocument(doc, PR_FALSE, PR_TRUE);
if (aNotify) {
doc->ContentReplaced(this, oldKid, aKid, aIndex);
}
}
oldKid->SetDocument(nsnull, PR_TRUE, PR_TRUE);
oldKid->SetParent(nsnull);
NS_RELEASE(oldKid);
}
if (aNotify && (nsnull != mDocument)) {
doc->EndUpdate();
}
return NS_OK;
}
nsresult
nsGenericContainerElement::AppendChildTo(nsIContent* aKid, PRBool aNotify)
{
NS_PRECONDITION(nsnull != aKid, "null ptr");
nsIDocument* doc = mDocument;
if (aNotify && (nsnull != doc)) {
doc->BeginUpdate();
}
PRBool rv = mChildren.AppendElement(aKid);
if (rv) {
NS_ADDREF(aKid);
aKid->SetParent(this);
// ranges don't need adjustment since new child is at end of list
if (nsnull != doc) {
aKid->SetDocument(doc, PR_FALSE, PR_TRUE);
if (aNotify) {
doc->ContentAppended(this, mChildren.Count() - 1);
}
if (HasMutationListeners(this, NS_EVENT_BITS_MUTATION_NODEINSERTED)) {
nsCOMPtr<nsIDOMEventTarget> node(do_QueryInterface(aKid));
nsMutationEvent mutation;
mutation.eventStructType = NS_MUTATION_EVENT;
mutation.message = NS_MUTATION_NODEINSERTED;
mutation.mTarget = node;
nsCOMPtr<nsIDOMNode> relNode(do_QueryInterface(NS_STATIC_CAST(nsIContent *, this)));
mutation.mRelatedNode = relNode;
nsEventStatus status = nsEventStatus_eIgnore;
nsCOMPtr<nsIDOMEvent> domEvent;
aKid->HandleDOMEvent(nsnull, &mutation, getter_AddRefs(domEvent),
NS_EVENT_FLAG_INIT, &status);
}
}
}
if (aNotify && (nsnull != doc)) {
doc->EndUpdate();
}
return NS_OK;
}
nsresult
nsGenericContainerElement::RemoveChildAt(PRInt32 aIndex, PRBool aNotify)
{
nsIContent* oldKid = (nsIContent *)mChildren.ElementAt(aIndex);
if (nsnull != oldKid ) {
nsIDocument* doc = mDocument;
if (aNotify && (nsnull != doc)) {
doc->BeginUpdate();
}
if (HasMutationListeners(this, NS_EVENT_BITS_MUTATION_NODEREMOVED)) {
nsCOMPtr<nsIDOMEventTarget> node(do_QueryInterface(oldKid));
nsMutationEvent mutation;
mutation.eventStructType = NS_MUTATION_EVENT;
mutation.message = NS_MUTATION_NODEREMOVED;
mutation.mTarget = node;
nsCOMPtr<nsIDOMNode> relNode(do_QueryInterface(NS_STATIC_CAST(nsIContent *, this)));
mutation.mRelatedNode = relNode;
nsEventStatus status = nsEventStatus_eIgnore;
nsCOMPtr<nsIDOMEvent> domEvent;
oldKid->HandleDOMEvent(nsnull, &mutation, getter_AddRefs(domEvent),
NS_EVENT_FLAG_INIT, &status);
}
nsRange::OwnerChildRemoved(this, aIndex, oldKid);
mChildren.RemoveElementAt(aIndex);
if (aNotify) {
if (nsnull != doc) {
doc->ContentRemoved(this, oldKid, aIndex);
}
}
oldKid->SetDocument(nsnull, PR_TRUE, PR_TRUE);
oldKid->SetParent(nsnull);
NS_RELEASE(oldKid);
if (aNotify && (nsnull != doc)) {
doc->EndUpdate();
}
}
return NS_OK;
}
PRUint32
nsGenericContainerElement::BaseSizeOf(nsISizeOfHandler *aSizer) const
{
PRUint32 sum = 0;
#ifdef DEBUG
if (mAttributes) {
// Add in array of attributes size
PRUint32 asize;
mAttributes->SizeOf(aSizer, &asize);
sum += asize;
// Add in each attributes size
PRInt32 i, n = mAttributes->Count();
for (i = 0; i < n; i++) {
const nsGenericAttribute* attr = (const nsGenericAttribute*)
mAttributes->ElementAt(i);
if (attr) {
PRUint32 asum = 0;
attr->SizeOf(aSizer, &asum);
sum += asum;
}
}
}
#endif
return sum;
}
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