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Mozilla/mozilla/content/base/src/nsGenericElement.cpp
peterv%netscape.com d103a96ada Fix for bug 176610 (Make nsNameSpaceManager a service). r=caillon, sr=jst. 
git-svn-id: svn://10.0.0.236/trunk@134587 18797224-902f-48f8-a5cc-f745e15eee43
2002-11-29 23:44:07 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#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 "nsStyleConsts.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsString.h"
#include "nsUnicharUtils.h"
#include "nsIEventStateManager.h"
#include "nsIDOMEvent.h"
#include "nsIPrivateDOMEvent.h"
#include "nsDOMCID.h"
#include "nsIServiceManager.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"
#include "nsIDOMEventListener.h"
#include "jsapi.h"
// baseURI
#include "nsIXMLDocument.h"
#include "nsIDOMXPathEvaluator.h"
#ifdef DEBUG_waterson
/**
* List a content tree to stdout. Meant to be called from gdb.
*/
void
DebugListContentTree(nsIContent* aElement)
{
aElement->List(stdout, 0);
printf("\n");
}
#endif
PLDHashTable nsGenericElement::sRangeListsHash;
PLDHashTable nsGenericElement::sEventListenerManagersHash;
//----------------------------------------------------------------------
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;
}
NS_IMETHODIMP
nsNode3Tearoff::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (aIID.Equals(NS_GET_IID(nsIDOM3Node))) {
nsISupports *inst = this;
NS_ADDREF(inst);
*aInstancePtr = inst;
return NS_OK;
}
return mContent->QueryInterface(aIID, aInstancePtr);
}
NS_IMPL_ADDREF(nsNode3Tearoff)
NS_IMPL_RELEASE(nsNode3Tearoff)
NS_IMETHODIMP
nsNode3Tearoff::GetBaseURI(nsAString& aURI)
{
nsCOMPtr<nsIURI> uri;
nsCOMPtr<nsIDocument> doc;
mContent->GetDocument(*getter_AddRefs(doc));
nsCOMPtr<nsIXMLDocument> xmlDoc(do_QueryInterface(doc));
aURI.Truncate();
if (xmlDoc) {
// XML documents can use the XML Base (W3C spec) way of setting
// the base per element. We look at this node and its ancestors
// until we find the first XML content and get it's base.
nsCOMPtr<nsIContent> content(mContent);
while (content) {
nsCOMPtr<nsIXMLContent> xmlContent(do_QueryInterface(content));
if (xmlContent) {
xmlContent->GetXMLBaseURI(getter_AddRefs(uri));
break;
}
nsCOMPtr<nsIContent> tmp(content);
tmp->GetParent(*getter_AddRefs(content));
}
}
if (!uri && doc) {
// HTML document or for some reason there was no XML content in
// XML document
doc->GetBaseURL(*getter_AddRefs(uri));
if (!uri) {
doc->GetDocumentURL(getter_AddRefs(uri));
}
}
if (uri) {
nsCAutoString spec;
uri->GetSpec(spec);
aURI = NS_ConvertUTF8toUCS2(spec);
}
return NS_OK;
}
NS_IMETHODIMP
nsNode3Tearoff::CompareTreePosition(nsIDOMNode* aOther,
PRUint16* aReturn)
{
NS_ENSURE_ARG_POINTER(aOther);
PRUint16 mask = nsIDOMNode::TREE_POSITION_DISCONNECTED;
nsCOMPtr<nsIDOMNode> node(do_QueryInterface(mContent));
if (node == aOther) {
mask |= nsIDOMNode::TREE_POSITION_SAME_NODE;
nsCOMPtr<nsIDocument> doc;
mContent->GetDocument(*getter_AddRefs(doc));
// Loose nodes without an owner document are not equivalent
// in tree position since they are not in any tree.
// Add the 'equivalent' flag only if we have an owner document.
if (doc) {
mask |= nsIDOMNode::TREE_POSITION_EQUIVALENT;
}
*aReturn = mask;
return NS_OK;
}
// If the other node is an attribute, document, or document fragment,
// we can find the position easier by comparing this node relative to
// the other node, and then reversing positions.
PRUint16 otherType = 0;
aOther->GetNodeType(&otherType);
if (otherType == nsIDOMNode::ATTRIBUTE_NODE ||
otherType == nsIDOMNode::DOCUMENT_NODE ||
otherType == nsIDOMNode::DOCUMENT_FRAGMENT_NODE) {
PRUint16 otherMask = nsIDOMNode::TREE_POSITION_DISCONNECTED;
nsCOMPtr<nsIDOM3Node> other(do_QueryInterface(aOther));
other->CompareTreePosition(node, &otherMask);
if (otherMask & nsIDOMNode::TREE_POSITION_FOLLOWING) {
mask |= nsIDOMNode::TREE_POSITION_PRECEDING;
} else if (otherMask & nsIDOMNode::TREE_POSITION_PRECEDING) {
mask |= nsIDOMNode::TREE_POSITION_FOLLOWING;
}
if (otherMask & nsIDOMNode::TREE_POSITION_ANCESTOR) {
mask |= nsIDOMNode::TREE_POSITION_DESCENDANT;
} else if (otherMask & nsIDOMNode::TREE_POSITION_DESCENDANT) {
mask |= nsIDOMNode::TREE_POSITION_ANCESTOR;
}
*aReturn = mask;
return NS_OK;
}
#ifdef DEBUG
{
PRUint16 nodeType = 0;
node->GetNodeType(&nodeType);
NS_ASSERTION((nodeType == nsIDOMNode::ELEMENT_NODE ||
nodeType == nsIDOMNode::TEXT_NODE ||
nodeType == nsIDOMNode::CDATA_SECTION_NODE ||
nodeType == nsIDOMNode::ENTITY_REFERENCE_NODE ||
nodeType == nsIDOMNode::PROCESSING_INSTRUCTION_NODE ||
nodeType == nsIDOMNode::COMMENT_NODE),
"Invalid node type!");
}
#endif
nsAutoVoidArray nodeAncestors;
nsresult rv =
nsContentUtils::GetFirstDifferentAncestors(node, aOther, &nodeAncestors);
if (NS_FAILED(rv)) {
// The nodes have no common ancestor. We're done.
*aReturn = mask;
return NS_OK;
}
nsIDOMNode* commonAncestor =
NS_STATIC_CAST(nsIDOMNode*, nodeAncestors.ElementAt(0));
nsCOMPtr<nsIDocument> doc;
mContent->GetDocument(*getter_AddRefs(doc));
if (commonAncestor == node) {
mask |= nsIDOMNode::TREE_POSITION_DESCENDANT;
// Should nodes in a document fragment get following/preceding?
// Currently we assume they can't.
// XXXcaa - See bug 154166.
if (doc) {
mask |= nsIDOMNode::TREE_POSITION_FOLLOWING;
}
*aReturn = mask;
return NS_OK;
}
if (commonAncestor == aOther) {
mask |= nsIDOMNode::TREE_POSITION_ANCESTOR;
// Should nodes in a document fragment get following/preceding?
// Currently we assume they can't.
// XXXcaa - See bug 154166.
if (doc) {
mask |= nsIDOMNode::TREE_POSITION_PRECEDING;
}
*aReturn = mask;
return NS_OK;
}
if (commonAncestor && doc && nodeAncestors.Count() == 3) {
nsIDOMNode* nodeAncestor =
NS_STATIC_CAST(nsIDOMNode*, nodeAncestors.ElementAt(1));
nsIDOMNode* otherAncestor =
NS_STATIC_CAST(nsIDOMNode*, nodeAncestors.ElementAt(2));
if (nodeAncestor && otherAncestor) {
// Find out which of the two nodes comes first in the document order.
// First get the children of the common ancestor.
nsCOMPtr<nsIDOMNodeList> children;
commonAncestor->GetChildNodes(getter_AddRefs(children));
PRUint32 numKids;
children->GetLength(&numKids);
for (PRUint32 i = 0; i < numKids; ++i) {
// Then go through the children one at a time to see which we hit first.
nsCOMPtr<nsIDOMNode> childNode;
children->Item(i, getter_AddRefs(childNode));
if (childNode == nodeAncestor) {
mask |= nsIDOMNode::TREE_POSITION_FOLLOWING;
break;
}
if (childNode == otherAncestor) {
mask |= nsIDOMNode::TREE_POSITION_PRECEDING;
break;
}
}
}
}
*aReturn = mask;
return NS_OK;
}
NS_IMETHODIMP
nsNode3Tearoff::IsSameNode(nsIDOMNode* aOther,
PRBool* aReturn)
{
PRBool sameNode = PR_FALSE;
nsCOMPtr<nsIContent> other(do_QueryInterface(aOther));
if (mContent == other) {
sameNode = PR_TRUE;
}
*aReturn = sameNode;
return NS_OK;
}
NS_IMETHODIMP
nsNode3Tearoff::LookupNamespacePrefix(const nsAString& aNamespaceURI,
nsAString& aPrefix)
{
SetDOMStringToNull(aPrefix);
// XXX Waiting for DOM spec to list error codes.
// Get the namespace id for the URI
PRInt32 namespaceId;
nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI,
namespaceId);
if (namespaceId == kNameSpaceID_Unknown) {
return NS_OK;
}
nsAutoString ns;
// Trace up the content parent chain looking for the namespace
// declaration that defines the aNamespaceURI namespace. Once found,
// return the prefix (i.e. the attribute localName).
nsCOMPtr<nsIContent> content(mContent);
while (content) {
PRInt32 attrCount, i;
nsCOMPtr<nsIAtom> name, prefix;
PRInt32 namespace_id;
content->GetAttrCount(attrCount);
for (i = 0; i < attrCount; i++) {
content->GetAttrNameAt(i, namespace_id, *getter_AddRefs(name),
*getter_AddRefs(prefix));
if (namespace_id == kNameSpaceID_XMLNS) {
nsresult rv = content->GetAttr(namespace_id, name, ns);
if (rv == NS_CONTENT_ATTR_HAS_VALUE &&
ns.Equals(aNamespaceURI)) {
name->ToString(aPrefix);
return NS_OK;
}
}
}
nsCOMPtr<nsIContent> tmp(content);
tmp->GetParent(*getter_AddRefs(content));
}
return NS_OK;
}
NS_IMETHODIMP
nsNode3Tearoff::LookupNamespaceURI(const nsAString& aNamespacePrefix,
nsAString& aNamespaceURI)
{
nsCOMPtr<nsIAtom> name;
if (!aNamespacePrefix.IsEmpty()) {
name = dont_AddRef(NS_NewAtom(aNamespacePrefix));
NS_ENSURE_TRUE(name, NS_ERROR_OUT_OF_MEMORY);
} else {
name = nsLayoutAtoms::xmlnsNameSpace;
}
// Trace up the content parent chain looking for the namespace
// declaration that declares aNamespacePrefix.
nsCOMPtr<nsIContent> content(mContent);
while (content) {
nsresult rv = content->GetAttr(kNameSpaceID_XMLNS, name, aNamespaceURI);
if (rv == NS_CONTENT_ATTR_HAS_VALUE) {
return NS_OK;
}
nsCOMPtr<nsIContent> tmp(content);
tmp->GetParent(*getter_AddRefs(content));
}
SetDOMStringToNull(aNamespaceURI);
return NS_OK;
}
nsDOMEventRTTearoff *
nsDOMEventRTTearoff::mCachedEventTearoff[NS_EVENT_TEAROFF_CACHE_SIZE];
PRUint32 nsDOMEventRTTearoff::mCachedEventTearoffCount = 0;
nsDOMEventRTTearoff::nsDOMEventRTTearoff(nsIContent *aContent)
: mContent(aContent)
{
NS_INIT_ISUPPORTS();
}
nsDOMEventRTTearoff::~nsDOMEventRTTearoff()
{
};
NS_IMETHODIMP
nsDOMEventRTTearoff::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (aIID.Equals(NS_GET_IID(nsIDOMEventTarget)) ||
aIID.Equals(NS_GET_IID(nsIDOMEventReceiver))) {
nsIDOMEventReceiver *inst = this;
NS_ADDREF(inst);
*aInstancePtr = inst;
return NS_OK;
}
else if (aIID.Equals(NS_GET_IID(nsIDOM3EventTarget))) {
nsIDOM3EventTarget *inst = this;
NS_ADDREF(inst);
*aInstancePtr = inst;
return NS_OK;
}
return mContent->QueryInterface(aIID, aInstancePtr);
}
NS_IMPL_ADDREF(nsDOMEventRTTearoff)
NS_IMPL_RELEASE_WITH_DESTROY(nsDOMEventRTTearoff, LastRelease())
nsDOMEventRTTearoff *
nsDOMEventRTTearoff::Create(nsIContent *aContent)
{
if (mCachedEventTearoffCount) {
// We have cached unused instances of this class, return a cached
// instance in stead of always creating a new one.
nsDOMEventRTTearoff *tearoff =
mCachedEventTearoff[--mCachedEventTearoffCount];
// Set the back pointer to the content object
tearoff->mContent = aContent;
return tearoff;
}
// The cache is empty, this means we haveto create a new instance.
return new nsDOMEventRTTearoff(aContent);
}
// static
void
nsDOMEventRTTearoff::Shutdown()
{
// Clear our cache.
while (mCachedEventTearoffCount) {
delete mCachedEventTearoff[--mCachedEventTearoffCount];
}
}
void
nsDOMEventRTTearoff::LastRelease()
{
if (mCachedEventTearoffCount < NS_EVENT_TEAROFF_CACHE_SIZE) {
// There's still space in the cache for one more instance, put
// this instance in the cache in stead of deleting it.
mCachedEventTearoff[mCachedEventTearoffCount++] = this;
mContent = nsnull;
// The refcount balancing and destructor re-entrancy protection
// code in Release() sets mRefCnt to 1 so we have to set it to 0
// here to prevent leaks
mRefCnt = 0;
return;
}
delete this;
}
nsresult
nsDOMEventRTTearoff::GetEventReceiver(nsIDOMEventReceiver **aReceiver)
{
nsCOMPtr<nsIEventListenerManager> listener_manager;
nsresult rv = mContent->GetListenerManager(getter_AddRefs(listener_manager));
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(listener_manager, aReceiver);
}
nsresult
nsDOMEventRTTearoff::GetDOM3EventTarget(nsIDOM3EventTarget **aTarget)
{
nsCOMPtr<nsIEventListenerManager> listener_manager;
nsresult rv = mContent->GetListenerManager(getter_AddRefs(listener_manager));
NS_ENSURE_SUCCESS(rv, rv);
return CallQueryInterface(listener_manager, aTarget);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::AddEventListenerByIID(nsIDOMEventListener *aListener,
const nsIID& aIID)
{
nsCOMPtr<nsIDOMEventReceiver> event_receiver;
nsresult rv = GetEventReceiver(getter_AddRefs(event_receiver));
NS_ENSURE_SUCCESS(rv, rv);
return event_receiver->AddEventListenerByIID(aListener, aIID);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::RemoveEventListenerByIID(nsIDOMEventListener *aListener,
const nsIID& aIID)
{
nsCOMPtr<nsIDOMEventReceiver> event_receiver;
nsresult rv = GetEventReceiver(getter_AddRefs(event_receiver));
NS_ENSURE_SUCCESS(rv, rv);
return event_receiver->RemoveEventListenerByIID(aListener, aIID);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::GetListenerManager(nsIEventListenerManager** aResult)
{
return mContent->GetListenerManager(aResult);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::HandleEvent(nsIDOMEvent *aEvent)
{
nsCOMPtr<nsIDOMEventReceiver> event_receiver;
nsresult rv = GetEventReceiver(getter_AddRefs(event_receiver));
NS_ENSURE_SUCCESS(rv, rv);
return event_receiver->HandleEvent(aEvent);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::GetSystemEventGroup(nsIDOMEventGroup **aGroup)
{
nsCOMPtr<nsIEventListenerManager> manager;
if (NS_SUCCEEDED(GetListenerManager(getter_AddRefs(manager))) && manager) {
return manager->GetSystemEventGroupLM(aGroup);
}
return NS_ERROR_FAILURE;
}
// nsIDOMEventTarget
NS_IMETHODIMP
nsDOMEventRTTearoff::AddEventListener(const nsAString& type,
nsIDOMEventListener *listener,
PRBool useCapture)
{
nsCOMPtr<nsIDOMEventReceiver> event_receiver;
nsresult rv = GetEventReceiver(getter_AddRefs(event_receiver));
NS_ENSURE_SUCCESS(rv, rv);
return event_receiver->AddEventListener(type, listener, useCapture);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::RemoveEventListener(const nsAString& type,
nsIDOMEventListener *listener,
PRBool useCapture)
{
nsCOMPtr<nsIDOMEventReceiver> event_receiver;
nsresult rv = GetEventReceiver(getter_AddRefs(event_receiver));
NS_ENSURE_SUCCESS(rv, rv);
return event_receiver->RemoveEventListener(type, listener, useCapture);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::DispatchEvent(nsIDOMEvent *evt, PRBool* _retval)
{
nsCOMPtr<nsIDOMEventReceiver> event_receiver;
nsresult rv = GetEventReceiver(getter_AddRefs(event_receiver));
NS_ENSURE_SUCCESS(rv, rv);
return event_receiver->DispatchEvent(evt, _retval);
}
// nsIDOM3EventTarget
NS_IMETHODIMP
nsDOMEventRTTearoff::AddGroupedEventListener(const nsAString& aType,
nsIDOMEventListener *aListener,
PRBool aUseCapture,
nsIDOMEventGroup *aEvtGrp)
{
nsCOMPtr<nsIDOM3EventTarget> event_target;
nsresult rv = GetDOM3EventTarget(getter_AddRefs(event_target));
NS_ENSURE_SUCCESS(rv, rv);
return event_target->AddGroupedEventListener(aType, aListener, aUseCapture, aEvtGrp);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::RemoveGroupedEventListener(const nsAString& aType,
nsIDOMEventListener *aListener,
PRBool aUseCapture,
nsIDOMEventGroup *aEvtGrp)
{
nsCOMPtr<nsIDOM3EventTarget> event_target;
nsresult rv = GetDOM3EventTarget(getter_AddRefs(event_target));
NS_ENSURE_SUCCESS(rv, rv);
return event_target->RemoveGroupedEventListener(aType, aListener, aUseCapture, aEvtGrp);
}
NS_IMETHODIMP
nsDOMEventRTTearoff::CanTrigger(const nsAString & type, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsDOMEventRTTearoff::IsRegisteredHere(const nsAString & type, PRBool *_retval)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
//----------------------------------------------------------------------
nsDOMSlots::nsDOMSlots(PtrBits aFlags)
: mFlags(aFlags & ~GENERIC_ELEMENT_CONTENT_ID_MASK), mChildNodes(nsnull),
mStyle(nsnull), mAttributeMap(nsnull), mBindingParent(nsnull),
mContentID(aFlags >> GENERIC_ELEMENT_CONTENT_ID_BITS_OFFSET)
{
}
nsDOMSlots::~nsDOMSlots()
{
if (mChildNodes) {
mChildNodes->DropReference();
NS_RELEASE(mChildNodes);
}
if (mStyle) {
mStyle->DropReference();
NS_RELEASE(mStyle);
}
if (mAttributeMap) {
mAttributeMap->DropReference();
NS_RELEASE(mAttributeMap);
}
}
PRBool
nsDOMSlots::IsEmpty()
{
return (!mChildNodes && !mStyle && !mAttributeMap && !mBindingParent &&
mContentID < GENERIC_ELEMENT_CONTENT_ID_MAX_VALUE);
}
PR_STATIC_CALLBACK(void)
NopClearEntry(PLDHashTable *table, PLDHashEntryHdr *entry)
{
// Do nothing
}
// static
void
nsGenericElement::Shutdown()
{
nsDOMEventRTTearoff::Shutdown();
if (sRangeListsHash.ops) {
NS_ASSERTION(sRangeListsHash.entryCount == 0,
"nsGenericElement's range hash not empty at shutdown!");
// We're already being shut down and if there are entries left in
// this hash at this point it means we leaked nsGenericElements or
// nsGenericDOMDataNodes. Since we're already partly through the
// shutdown process it's too late to release what's held on to by
// this hash (since the teardown code relies on some things being
// around that aren't around any more) so we rather leak what's
// already leaked in stead of crashing trying to release what
// should've been released much earlier on.
// Copy the ops out of the hash table
PLDHashTableOps hash_table_ops = *sRangeListsHash.ops;
// Set the clearEntry hook to be a nop
hash_table_ops.clearEntry = NopClearEntry;
// Set the ops in the hash table to be the new ops
sRangeListsHash.ops = &hash_table_ops;
PL_DHashTableFinish(&sRangeListsHash);
sRangeListsHash.ops = nsnull;
}
if (sEventListenerManagersHash.ops) {
NS_ASSERTION(sEventListenerManagersHash.entryCount == 0,
"nsGenericElement's event listener manager hash not empty "
"at shutdown!");
// See comment above.
// Copy the ops out of the hash table
PLDHashTableOps hash_table_ops = *sEventListenerManagersHash.ops;
// Set the clearEntry hook to be a nop
hash_table_ops.clearEntry = NopClearEntry;
// Set the ops in the hash table to be the new ops
sEventListenerManagersHash.ops = &hash_table_ops;
PL_DHashTableFinish(&sEventListenerManagersHash);
sEventListenerManagersHash.ops = nsnull;
}
}
nsGenericElement::nsGenericElement()
: mDocument(nsnull), mParent(nsnull), mNodeInfo(nsnull),
mFlagsOrSlots(GENERIC_ELEMENT_DOESNT_HAVE_DOMSLOTS)
{
NS_INIT_ISUPPORTS();
}
nsGenericElement::~nsGenericElement()
{
// pop any enclosed ranges out
// nsRange::OwnerGone(mContent); not used for now
if (HasRangeList()) {
#ifdef DEBUG
{
RangeListMapEntry *entry =
NS_STATIC_CAST(RangeListMapEntry *,
PL_DHashTableOperate(&sRangeListsHash, this,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry)) {
NS_ERROR("Huh, our bit says we have a range list, but there's nothing "
"in the hash!?!!");
}
}
#endif
PL_DHashTableOperate(&sRangeListsHash, this, PL_DHASH_REMOVE);
}
if (HasEventListenerManager()) {
#ifdef DEBUG
{
EventListenerManagerMapEntry *entry =
NS_STATIC_CAST(EventListenerManagerMapEntry *,
PL_DHashTableOperate(&sEventListenerManagersHash, this,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry)) {
NS_ERROR("Huh, our bit says we have a listener manager list, "
"but there's nothing in the hash!?!!");
}
}
#endif
PL_DHashTableOperate(&sEventListenerManagersHash, this, PL_DHASH_REMOVE);
}
NS_IF_RELEASE(mNodeInfo);
if (HasDOMSlots()) {
nsDOMSlots *slots = GetDOMSlots();
delete slots;
}
// No calling GetFlags() beond this point...
}
PR_STATIC_CALLBACK(void)
RangeListHashInitEntry(PLDHashTable *table, PLDHashEntryHdr *entry,
const void *key)
{
// Initialize the entry with placement new
new (entry) RangeListMapEntry(key);
}
PR_STATIC_CALLBACK(void)
RangeListHashClearEntry(PLDHashTable *table, PLDHashEntryHdr *entry)
{
RangeListMapEntry *r = NS_STATIC_CAST(RangeListMapEntry *, entry);
// Let the RangeListMapEntry clean itself up...
r->~RangeListMapEntry();
}
PR_STATIC_CALLBACK(void)
EventListenerManagerHashInitEntry(PLDHashTable *table, PLDHashEntryHdr *entry,
const void *key)
{
// Initialize the entry with placement new
new (entry) EventListenerManagerMapEntry(key);
}
PR_STATIC_CALLBACK(void)
EventListenerManagerHashClearEntry(PLDHashTable *table, PLDHashEntryHdr *entry)
{
EventListenerManagerMapEntry *lm =
NS_STATIC_CAST(EventListenerManagerMapEntry *, entry);
// Let the EventListenerManagerMapEntry clean itself up...
lm->~EventListenerManagerMapEntry();
}
// static
nsresult
nsGenericElement::InitHashes()
{
NS_ASSERTION(sizeof(PtrBits) == sizeof(void *),
"Eeek! You'll need to adjust the size of PtrBits to the size "
"of a pointer on your platform.");
if (!sRangeListsHash.ops) {
static PLDHashTableOps hash_table_ops =
{
PL_DHashAllocTable,
PL_DHashFreeTable,
PL_DHashGetKeyStub,
PL_DHashVoidPtrKeyStub,
PL_DHashMatchEntryStub,
PL_DHashMoveEntryStub,
RangeListHashClearEntry,
PL_DHashFinalizeStub,
RangeListHashInitEntry
};
if (!PL_DHashTableInit(&sRangeListsHash, &hash_table_ops, nsnull,
sizeof(RangeListMapEntry), 16)) {
sRangeListsHash.ops = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
}
if (!sEventListenerManagersHash.ops) {
static PLDHashTableOps hash_table_ops =
{
PL_DHashAllocTable,
PL_DHashFreeTable,
PL_DHashGetKeyStub,
PL_DHashVoidPtrKeyStub,
PL_DHashMatchEntryStub,
PL_DHashMoveEntryStub,
EventListenerManagerHashClearEntry,
PL_DHashFinalizeStub,
EventListenerManagerHashInitEntry
};
if (!PL_DHashTableInit(&sEventListenerManagersHash, &hash_table_ops,
nsnull, sizeof(EventListenerManagerMapEntry), 16)) {
sEventListenerManagersHash.ops = nsnull;
PL_DHashTableFinish(&sRangeListsHash);
sRangeListsHash.ops = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
}
return NS_OK;
}
nsresult
nsGenericElement::Init(nsINodeInfo *aNodeInfo)
{
NS_ENSURE_ARG(aNodeInfo);
mNodeInfo = aNodeInfo;
NS_ADDREF(mNodeInfo);
nsresult rv = NS_OK;
if (!sRangeListsHash.ops) {
rv = InitHashes();
}
return rv;
}
NS_IMETHODIMP
nsGenericElement::GetNodeName(nsAString& aNodeName)
{
return mNodeInfo->GetQualifiedName(aNodeName);
}
NS_IMETHODIMP
nsGenericElement::GetLocalName(nsAString& aLocalName)
{
return mNodeInfo->GetLocalName(aLocalName);
}
NS_IMETHODIMP
nsGenericElement::GetNodeValue(nsAString& aNodeValue)
{
SetDOMStringToNull(aNodeValue);
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::SetNodeValue(const nsAString& 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)
{
if (mParent) {
return CallQueryInterface(mParent, aParentNode);
}
if (mDocument) {
// 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.
return CallQueryInterface(mDocument, aParentNode);
}
*aParentNode = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetPreviousSibling(nsIDOMNode** aPrevSibling)
{
nsIContent* sibling = nsnull;
nsresult result = NS_OK;
if (mParent) {
PRInt32 pos;
mParent->IndexOf(this, pos);
if (pos > 0 ) {
mParent->ChildAt(--pos, sibling);
}
} else if (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 > 0 ) {
mDocument->ChildAt(--pos, sibling);
}
}
if (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 (mParent) {
PRInt32 pos;
mParent->IndexOf(this, pos);
if (pos > -1 ) {
mParent->ChildAt(++pos, sibling);
}
} else if (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 (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)
{
NS_ENSURE_ARG_POINTER(aOwnerDocument);
nsCOMPtr<nsIDocument> doc(mDocument);
if (!doc) {
// If we're not part of the document we can check if our nodeinfo
// can get at the document
mNodeInfo->GetDocument(*getter_AddRefs(doc));
}
if (doc) {
return CallQueryInterface(doc, aOwnerDocument);
}
// No document, return nsnull
*aOwnerDocument = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetNamespaceURI(nsAString& aNamespaceURI)
{
return mNodeInfo->GetNamespaceURI(aNamespaceURI);
}
NS_IMETHODIMP
nsGenericElement::GetPrefix(nsAString& aPrefix)
{
return mNodeInfo->GetPrefix(aPrefix);
}
NS_IMETHODIMP
nsGenericElement::SetPrefix(const nsAString& aPrefix)
{
// XXX: Validate the prefix string!
nsINodeInfo *newNodeInfo = nsnull;
nsCOMPtr<nsIAtom> prefix;
if (!aPrefix.IsEmpty() && !DOMStringIsNull(aPrefix)) {
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;
}
extern PRBool gCheckedForXPathDOM;
extern PRBool gHaveXPathDOM;
nsresult
nsGenericElement::InternalIsSupported(const nsAString& aFeature,
const nsAString& aVersion,
PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = PR_FALSE;
nsAutoString feature(aFeature);
if (feature.Equals(NS_LITERAL_STRING("XML"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("HTML"),
nsCaseInsensitiveStringComparator())) {
if (aVersion.IsEmpty() ||
aVersion.Equals(NS_LITERAL_STRING("1.0")) ||
aVersion.Equals(NS_LITERAL_STRING("2.0"))) {
*aReturn = PR_TRUE;
}
} else if (feature.Equals(NS_LITERAL_STRING("Views"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("StyleSheets"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("Core"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("CSS"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("CSS2"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("Events"),
nsCaseInsensitiveStringComparator()) ||
// feature.Equals(NS_LITERAL_STRING("UIEvents"),
// nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("MouseEvents"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("MouseScrollEvents"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("HTMLEvents"),
nsCaseInsensitiveStringComparator()) ||
feature.Equals(NS_LITERAL_STRING("Range"),
nsCaseInsensitiveStringComparator())) {
if (aVersion.IsEmpty() || aVersion.Equals(NS_LITERAL_STRING("2.0"))) {
*aReturn = PR_TRUE;
}
} else if ((!gCheckedForXPathDOM || gHaveXPathDOM) &&
feature.Equals(NS_LITERAL_STRING("XPath"),
nsCaseInsensitiveStringComparator()) &&
(aVersion.IsEmpty() ||
aVersion.Equals(NS_LITERAL_STRING("3.0")))) {
if (!gCheckedForXPathDOM) {
nsCOMPtr<nsIDOMXPathEvaluator> evaluator;
evaluator = do_CreateInstance(NS_XPATH_EVALUATOR_CONTRACTID);
gHaveXPathDOM = (evaluator != nsnull);
gCheckedForXPathDOM = PR_TRUE;
}
*aReturn = gHaveXPathDOM;
}
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::IsSupported(const nsAString& aFeature,
const nsAString& aVersion,
PRBool* aReturn)
{
return InternalIsSupported(aFeature, aVersion, aReturn);
}
NS_IMETHODIMP
nsGenericElement::HasAttributes(PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
PRInt32 attrCount = 0;
GetAttrCount(attrCount);
*aReturn = !!attrCount;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetXMLBaseURI(nsIURI **aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
*aURI = nsnull;
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 (!slots->mAttributeMap) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(slots->mAttributeMap);
}
return CallQueryInterface(slots->mAttributeMap, aAttributes);
}
NS_IMETHODIMP
nsGenericElement::GetTagName(nsAString& aTagName)
{
mNodeInfo->GetName(aTagName);
return NS_OK;
}
nsresult
nsGenericElement::GetAttribute(const nsAString& aName,
nsAString& aReturn)
{
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttrString(aName, *getter_AddRefs(ni));
NS_ENSURE_TRUE(ni, NS_ERROR_FAILURE);
PRInt32 nsid;
nsCOMPtr<nsIAtom> nameAtom;
ni->GetNamespaceID(nsid);
ni->GetNameAtom(*getter_AddRefs(nameAtom));
nsresult rv = GetAttr(nsid, nameAtom, aReturn);
if (rv == NS_CONTENT_ATTR_NOT_THERE) {
SetDOMStringToNull(aReturn);
}
return NS_OK;
}
nsresult
nsGenericElement::SetAttribute(const nsAString& aName,
const nsAString& aValue)
{
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttrString(aName, *getter_AddRefs(ni));
return SetAttr(ni, aValue, PR_TRUE);
}
nsresult
nsGenericElement::RemoveAttribute(const nsAString& aName)
{
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttrString(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 UnsetAttr(nsid, tag, PR_TRUE);
}
nsresult
nsGenericElement::GetAttributeNode(const nsAString& aName,
nsIDOMAttr** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
nsCOMPtr<nsIDOMNamedNodeMap> map;
nsresult rv = GetAttributes(getter_AddRefs(map));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNode> node;
rv = map->GetNamedItem(aName, getter_AddRefs(node));
if (NS_SUCCEEDED(rv) && node) {
rv = CallQueryInterface(node, aReturn);
}
return rv;
}
nsresult
nsGenericElement::SetAttributeNode(nsIDOMAttr* aAttribute,
nsIDOMAttr** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
NS_ENSURE_ARG_POINTER(aAttribute);
*aReturn = nsnull;
nsCOMPtr<nsIDOMNamedNodeMap> map;
nsresult rv = GetAttributes(getter_AddRefs(map));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNode> returnNode;
rv = map->SetNamedItem(aAttribute, getter_AddRefs(returnNode));
NS_ENSURE_SUCCESS(rv, rv);
if (returnNode) {
rv = CallQueryInterface(returnNode, aReturn);
}
return rv;
}
nsresult
nsGenericElement::RemoveAttributeNode(nsIDOMAttr* aAttribute,
nsIDOMAttr** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
NS_ENSURE_ARG_POINTER(aAttribute);
*aReturn = nsnull;
nsCOMPtr<nsIDOMNamedNodeMap> map;
nsresult rv = GetAttributes(getter_AddRefs(map));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString name;
rv = aAttribute->GetName(name);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIDOMNode> node;
rv = map->RemoveNamedItem(name, getter_AddRefs(node));
if (NS_SUCCEEDED(rv) && node) {
rv = CallQueryInterface(node, aReturn);
}
}
return rv;
}
nsresult
nsGenericElement::GetElementsByTagName(const nsAString& aTagname,
nsIDOMNodeList** aReturn)
{
nsCOMPtr<nsIAtom> nameAtom;
nameAtom = dont_AddRef(NS_NewAtom(aTagname));
NS_ENSURE_TRUE(nameAtom, NS_ERROR_OUT_OF_MEMORY);
nsCOMPtr<nsIContentList> list;
NS_GetContentList(mDocument, nameAtom, kNameSpaceID_Unknown, this,
getter_AddRefs(list));
if (!list) {
return NS_ERROR_OUT_OF_MEMORY;
}
return CallQueryInterface(list, aReturn);
}
nsresult
nsGenericElement::GetAttributeNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName,
nsAString& aReturn)
{
nsCOMPtr<nsIAtom> name(dont_AddRef(NS_NewAtom(aLocalName)));
PRInt32 nsid;
nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI, nsid);
if (nsid == kNameSpaceID_Unknown) {
// Unkonwn namespace means no attr...
aReturn.Truncate();
return NS_OK;
}
GetAttr(nsid, name, aReturn);
return NS_OK;
}
nsresult
nsGenericElement::SetAttributeNS(const nsAString& aNamespaceURI,
const nsAString& aQualifiedName,
const nsAString& 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 SetAttr(ni, aValue, PR_TRUE);
}
nsresult
nsGenericElement::RemoveAttributeNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName)
{
nsCOMPtr<nsIAtom> name(dont_AddRef(NS_NewAtom(aLocalName)));
PRInt32 nsid;
nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI, nsid);
if (nsid == kNameSpaceID_Unknown) {
// Unkonwn namespace means no attr...
return NS_OK;
}
nsAutoString tmp;
UnsetAttr(nsid, name, PR_TRUE);
return NS_OK;
}
nsresult
nsGenericElement::GetAttributeNodeNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName,
nsIDOMAttr** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
*aReturn = nsnull;
nsCOMPtr<nsIDOMNamedNodeMap> map;
nsresult rv = GetAttributes(getter_AddRefs(map));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNode> node;
rv = map->GetNamedItemNS(aNamespaceURI, aLocalName, getter_AddRefs(node));
if (NS_SUCCEEDED(rv) && node) {
rv = CallQueryInterface(node, aReturn);
}
return rv;
}
nsresult
nsGenericElement::SetAttributeNodeNS(nsIDOMAttr* aNewAttr,
nsIDOMAttr** aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
NS_ENSURE_ARG_POINTER(aNewAttr);
*aReturn = nsnull;
nsCOMPtr<nsIDOMNamedNodeMap> map;
nsresult rv = GetAttributes(getter_AddRefs(map));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNode> returnNode;
rv = map->SetNamedItemNS(aNewAttr, getter_AddRefs(returnNode));
NS_ENSURE_SUCCESS(rv, rv);
if (returnNode) {
rv = CallQueryInterface(returnNode, aReturn);
}
return rv;
}
nsresult
nsGenericElement::GetElementsByTagNameNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName,
nsIDOMNodeList** aReturn)
{
nsCOMPtr<nsIAtom> nameAtom(dont_AddRef(NS_NewAtom(aLocalName)));
NS_ENSURE_TRUE(nameAtom, NS_ERROR_OUT_OF_MEMORY);
PRInt32 nameSpaceId = kNameSpaceID_Unknown;
nsCOMPtr<nsIContentList> list;
if (!aNamespaceURI.Equals(NS_LITERAL_STRING("*"))) {
nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI,
nameSpaceId);
if (nameSpaceId == kNameSpaceID_Unknown) {
// Unknown namespace means no matches, we create an empty list...
NS_GetContentList(mDocument, nsnull, kNameSpaceID_None, nsnull,
getter_AddRefs(list));
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
}
}
if (!list) {
NS_GetContentList(mDocument, nameAtom, nameSpaceId, this,
getter_AddRefs(list));
NS_ENSURE_TRUE(list, NS_ERROR_OUT_OF_MEMORY);
}
return CallQueryInterface(list, aReturn);
}
nsresult
nsGenericElement::HasAttribute(const nsAString& aName, PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
nsCOMPtr<nsINodeInfo> ni;
NormalizeAttrString(aName, *getter_AddRefs(ni));
NS_ENSURE_TRUE(ni, NS_ERROR_FAILURE);
PRInt32 nsid;
nsCOMPtr<nsIAtom> nameAtom;
ni->GetNamespaceID(nsid);
ni->GetNameAtom(*getter_AddRefs(nameAtom));
*aReturn = HasAttr(nsid, nameAtom);
return NS_OK;
}
nsresult
nsGenericElement::HasAttributeNS(const nsAString& aNamespaceURI,
const nsAString& aLocalName,
PRBool* aReturn)
{
NS_ENSURE_ARG_POINTER(aReturn);
nsCOMPtr<nsIAtom> name(dont_AddRef(NS_NewAtom(aLocalName)));
PRInt32 nsid;
nsContentUtils::GetNSManagerWeakRef()->GetNameSpaceID(aNamespaceURI, nsid);
if (nsid == kNameSpaceID_Unknown) {
// Unkonwn namespace means no attr...
*aReturn = PR_FALSE;
return NS_OK;
}
*aReturn = HasAttr(nsid, name);
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
{
aResult = mDocument;
NS_IF_ADDREF(aResult);
return NS_OK;
}
void
nsGenericElement::SetDocumentInChildrenOf(nsIContent* aContent,
nsIDocument* aDocument,
PRBool aCompileEventHandlers)
{
nsCOMPtr<nsIContent> child;
PRInt32 i, n;
aContent->ChildCount(n);
for (i = 0; i < n; i++) {
aContent->ChildAt(i, *getter_AddRefs(child));
if (child) {
child->SetDocument(aDocument, PR_TRUE, aCompileEventHandlers);
}
}
}
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 && 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);
}
}
if (aDocument) {
// check the document on the nodeinfo to see whether we need a
// new nodeinfo
nsCOMPtr<nsIDocument> nodeinfoDoc;
mNodeInfo->GetDocument(*getter_AddRefs(nodeinfoDoc));
if (aDocument != nodeinfoDoc) {
// get a new nodeinfo
nsCOMPtr<nsIAtom> name;
mNodeInfo->GetNameAtom(*getter_AddRefs(name));
nsCOMPtr<nsIAtom> prefix;
mNodeInfo->GetPrefixAtom(*getter_AddRefs(prefix));
PRInt32 nameSpaceID;
mNodeInfo->GetNamespaceID(nameSpaceID);
nsCOMPtr<nsINodeInfoManager> nodeInfoManager;
aDocument->GetNodeInfoManager(*getter_AddRefs(nodeInfoManager));
if (nodeInfoManager) {
nsINodeInfo* newNodeInfo;
nodeInfoManager->GetNodeInfo(name, prefix, nameSpaceID,
newNodeInfo);
if (newNodeInfo) {
NS_RELEASE(mNodeInfo);
mNodeInfo = newNodeInfo;
}
}
}
}
mDocument = aDocument;
}
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;
if (aParent) {
nsCOMPtr<nsIContent> bindingPar;
aParent->GetBindingParent(getter_AddRefs(bindingPar));
if (bindingPar)
SetBindingParent(bindingPar);
}
return NS_OK;
}
NS_IMETHODIMP_(PRBool)
nsGenericElement::IsNativeAnonymous() const
{
return !!(GetFlags() & GENERIC_ELEMENT_IS_ANONYMOUS);
}
NS_IMETHODIMP_(void)
nsGenericElement::SetNativeAnonymous(PRBool aAnonymous)
{
if (aAnonymous) {
SetFlags(GENERIC_ELEMENT_IS_ANONYMOUS);
} else {
UnsetFlags(GENERIC_ELEMENT_IS_ANONYMOUS);
}
}
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_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;
PRBool externalDOMEvent = PR_FALSE;
nsCOMPtr<nsIDOMEventTarget> oldTarget;
nsIDOMEvent* domEvent = nsnull;
if (NS_EVENT_FLAG_INIT & aFlags) {
if (aDOMEvent) {
if (*aDOMEvent) {
externalDOMEvent = PR_TRUE;
}
} else {
aDOMEvent = &domEvent;
}
aEvent->flags |= aFlags;
aFlags &= ~(NS_EVENT_FLAG_CANT_BUBBLE | NS_EVENT_FLAG_CANT_CANCEL);
aFlags |= NS_EVENT_FLAG_BUBBLE | NS_EVENT_FLAG_CAPTURE;
}
// Find out if we're anonymous.
nsCOMPtr<nsIContent> bindingParent;
if (*aDOMEvent) {
(*aDOMEvent)->GetTarget(getter_AddRefs(oldTarget));
nsCOMPtr<nsIContent> content(do_QueryInterface(oldTarget));
if (content)
content->GetBindingParent(getter_AddRefs(bindingParent));
} else {
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;
}
}
// determine the parent:
nsCOMPtr<nsIContent> parent;
if (mDocument) {
nsCOMPtr<nsIBindingManager> bindingManager;
mDocument->GetBindingManager(getter_AddRefs(bindingManager));
if (bindingManager) {
// we have a binding manager -- do we have an anonymous parent?
bindingManager->GetInsertionParent(this, getter_AddRefs(parent));
}
}
if (parent) {
retarget = PR_FALSE;
} else {
// if we didn't find an anonymous parent, use the explicit one,
// whether it's null or not...
parent = mParent;
}
if (retarget || (parent.get() != mParent)) {
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);
if (retarget) {
nsCOMPtr<nsIDOMEventTarget> target = do_QueryInterface(mParent);
privateEvent->SetTarget(target);
}
}
//Capturing stage evaluation
if (NS_EVENT_FLAG_CAPTURE & aFlags && aEvent->message != NS_PAGE_LOAD &&
aEvent->message != NS_SCRIPT_LOAD &&
aEvent->message != NS_IMAGE_ERROR && aEvent->message != NS_IMAGE_LOAD &&
aEvent->message != NS_SCROLL_EVENT) {
//Initiate capturing phase. Special case first call to document
if (parent) {
parent->HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags & NS_EVENT_CAPTURE_MASK,
aEventStatus);
} else if (mDocument != nsnull) {
ret = mDocument->HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags & NS_EVENT_CAPTURE_MASK,
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);
}
// Weak pointer, which is fine since the hash table owns the
// listener manager
nsIEventListenerManager *lm = nsnull;
if (HasEventListenerManager()) {
EventListenerManagerMapEntry *entry =
NS_STATIC_CAST(EventListenerManagerMapEntry *,
PL_DHashTableOperate(&sEventListenerManagersHash, this,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry)) {
NS_ERROR("Huh, our bit says we have an event listener manager, but "
"there's nothing in the hash!?!!");
return NS_ERROR_UNEXPECTED;
}
lm = entry->mListenerManager;
}
//Local handling stage
if (lm &&
!(NS_EVENT_FLAG_CANT_BUBBLE & aEvent->flags &&
NS_EVENT_FLAG_BUBBLE & aFlags && !(NS_EVENT_FLAG_INIT & aFlags)) &&
!(aEvent->flags & NS_EVENT_FLAG_NO_CONTENT_DISPATCH)) {
aEvent->flags |= aFlags;
nsCOMPtr<nsIDOMEventTarget> curTarg =
do_QueryInterface(NS_STATIC_CAST(nsIHTMLContent *, this));
lm->HandleEvent(aPresContext, aEvent, aDOMEvent, curTarg, aFlags,
aEventStatus);
aEvent->flags &= ~aFlags;
// We don't want scroll events to bubble further after it has been
// handled at the local stage.
if (aEvent->message == NS_SCROLL_EVENT && aFlags & NS_EVENT_FLAG_BUBBLE)
aEvent->flags |= NS_EVENT_FLAG_CANT_BUBBLE;
}
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_BUBBLE & aFlags && mDocument &&
aEvent->message != NS_PAGE_LOAD && aEvent->message != NS_SCRIPT_LOAD &&
aEvent->message != NS_IMAGE_ERROR && aEvent->message != NS_IMAGE_LOAD &&
!(aEvent->message == NS_SCROLL_EVENT &&
aEvent->flags & NS_EVENT_FLAG_CANT_BUBBLE)) {
if (parent) {
// If there's a parent we pass the event to the parent...
ret = parent->HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags & NS_EVENT_BUBBLE_MASK,
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,
aFlags & NS_EVENT_BUBBLE_MASK,
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 externalDOMEvent is set the event was passed
// in and we don't own it
if (*aDOMEvent && !externalDOMEvent) {
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.
nsCOMPtr<nsIPrivateDOMEvent> privateEvent =
do_QueryInterface(*aDOMEvent);
if (privateEvent) {
privateEvent->DuplicatePrivateData();
}
}
aDOMEvent = nsnull;
}
}
return ret;
}
#ifdef DEBUG
PRUint32
nsGenericElement::BaseSizeOf(nsISizeOfHandler *aSizer) const
{
return 0;
}
#endif
NS_IMETHODIMP
nsGenericElement::GetContentID(PRUint32* aID)
{
nsDOMSlots *slots = GetExistingDOMSlots();
if (slots) {
*aID = slots->mContentID;
} else {
PtrBits flags = GetFlags();
*aID = flags >> GENERIC_ELEMENT_CONTENT_ID_BITS_OFFSET;
}
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::SetContentID(PRUint32 aID)
{
if (HasDOMSlots() || aID > GENERIC_ELEMENT_CONTENT_ID_MAX_VALUE) {
nsDOMSlots *slots = GetDOMSlots();
if (!slots) {
return NS_ERROR_OUT_OF_MEMORY;
}
slots->mContentID = aID;
} else {
UnsetFlags(GENERIC_ELEMENT_CONTENT_ID_MASK);
SetFlags(aID << GENERIC_ELEMENT_CONTENT_ID_BITS_OFFSET);
}
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_OK;
}
NS_IMETHODIMP_(PRBool)
nsGenericElement::HasClass(nsIAtom* aClass, PRBool aCaseSensitive) const
{
return PR_FALSE;
}
NS_IMETHODIMP
nsGenericElement::WalkContentStyleRules(nsRuleWalker* aRuleWalker)
{
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetInlineStyleRule(nsIStyleRule** aStyleRule)
{
*aStyleRule = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::GetMappedAttributeImpact(const nsIAtom* aAttribute, PRInt32 aModType,
nsChangeHint& 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::GetAttributeMappingFunction(nsMapRuleToAttributesFunc& aMapRuleFunc) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::AttributeToString(nsIAtom* aAttribute,
const nsHTMLValue& aValue,
nsAString& aResult) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsGenericElement::StringToAttribute(nsIAtom* aAttribute,
const nsAString& 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(nsAString& aBaseTarget) const
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsGenericElement::RangeAdd(nsIDOMRange* aRange)
{
if (!sRangeListsHash.ops) {
// We've already been shut down, don't bother adding a range...
return NS_OK;
}
RangeListMapEntry *entry =
NS_STATIC_CAST(RangeListMapEntry *,
PL_DHashTableOperate(&sRangeListsHash, this, PL_DHASH_ADD));
if (!entry) {
return NS_ERROR_OUT_OF_MEMORY;
}
// lazy allocation of range list
if (!entry->mRangeList) {
NS_ASSERTION(!(GetFlags() & GENERIC_ELEMENT_HAS_RANGELIST),
"Huh, nsGenericElement flags don't reflect reality!!!");
entry->mRangeList = new nsAutoVoidArray();
if (!entry->mRangeList) {
PL_DHashTableRawRemove(&sRangeListsHash, entry);
return NS_ERROR_OUT_OF_MEMORY;
}
SetFlags(GENERIC_ELEMENT_HAS_RANGELIST);
}
// Make sure we don't add a range that is already in the list!
PRInt32 i = entry->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 = entry->mRangeList->AppendElement(aRange);
if (!rv) {
if (entry->mRangeList->Count() == 0) {
// Fresh entry, remove it from the hash...
PL_DHashTableRawRemove(&sRangeListsHash, entry);
}
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
nsresult
nsGenericElement::RangeRemove(nsIDOMRange* aRange)
{
if (!HasRangeList()) {
return NS_ERROR_UNEXPECTED;
}
RangeListMapEntry *entry =
NS_STATIC_CAST(RangeListMapEntry *,
PL_DHashTableOperate(&sRangeListsHash, this,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry)) {
NS_ERROR("Huh, our bit says we have a range list, but there's nothing "
"in the hash!?!!");
return NS_ERROR_UNEXPECTED;
}
if (!entry->mRangeList) {
return NS_ERROR_UNEXPECTED;
}
// dont need to release - this call is made by the range object itself
PRBool rv = entry->mRangeList->RemoveElement(aRange);
if (!rv) {
return NS_ERROR_FAILURE;
}
if (entry->mRangeList->Count() == 0) {
PL_DHashTableRawRemove(&sRangeListsHash, entry);
UnsetFlags(GENERIC_ELEMENT_HAS_RANGELIST);
}
return NS_OK;
}
nsresult
nsGenericElement::GetRangeList(nsVoidArray*& aResult) const
{
aResult = nsnull;
if (!HasRangeList()) {
return NS_OK;
}
RangeListMapEntry *entry =
NS_STATIC_CAST(RangeListMapEntry *,
PL_DHashTableOperate(&sRangeListsHash, this,
PL_DHASH_LOOKUP));
if (PL_DHASH_ENTRY_IS_FREE(entry)) {
NS_ERROR("Huh, our bit says we have a range list, but there's nothing "
"in the hash!?!!");
return NS_ERROR_UNEXPECTED;
}
aResult = entry->mRangeList;
return NS_OK;
}
nsresult
nsGenericElement::SetFocus(nsIPresContext* aPresContext)
{
if (HasAttr(kNameSpaceID_None, nsHTMLAtoms::disabled)) {
return NS_OK;
}
nsCOMPtr<nsIEventStateManager> esm;
aPresContext->GetEventStateManager(getter_AddRefs(esm));
if (esm) {
esm->SetContentState(this, NS_EVENT_STATE_FOCUS);
}
return NS_OK;
}
nsresult
nsGenericElement::RemoveFocus(nsIPresContext* aPresContext)
{
return NS_OK;
}
nsresult
nsGenericElement::GetBindingParent(nsIContent** aContent)
{
nsDOMSlots *slots = GetExistingDOMSlots();
if (slots) {
*aContent = slots->mBindingParent;
NS_IF_ADDREF(*aContent);
} else {
*aContent = nsnull;
}
return NS_OK;
}
nsresult
nsGenericElement::SetBindingParent(nsIContent* aParent)
{
nsDOMSlots *slots = GetDOMSlots();
if (!slots) {
return NS_ERROR_OUT_OF_MEMORY;
}
slots->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;
}
NS_IMETHODIMP_(PRBool)
nsGenericElement::IsContentOfType(PRUint32 aFlags)
{
return !(aFlags & ~eELEMENT);
}
//----------------------------------------------------------------------
nsresult
nsGenericElement::GetListenerManager(nsIEventListenerManager** aResult)
{
*aResult = nsnull;
if (!sEventListenerManagersHash.ops) {
// We''re already shut down, don't bother creating a event
// listener manager.
return NS_OK;
}
EventListenerManagerMapEntry *entry =
NS_STATIC_CAST(EventListenerManagerMapEntry *,
PL_DHashTableOperate(&sEventListenerManagersHash, this,
PL_DHASH_ADD));
if (!entry) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (!entry->mListenerManager) {
nsresult rv =
NS_NewEventListenerManager(getter_AddRefs(entry->mListenerManager));
if (NS_FAILED(rv)) {
PL_DHashTableRawRemove(&sEventListenerManagersHash, entry);
return rv;
}
entry->mListenerManager->SetListenerTarget(NS_STATIC_CAST(nsIHTMLContent *,
this));
SetFlags(GENERIC_ELEMENT_HAS_LISTENERMANAGER);
}
*aResult = entry->mListenerManager;
NS_ADDREF(*aResult);
return NS_OK;
}
NS_IMETHODIMP
nsGenericElement::DoneCreatingElement()
{
return NS_OK;
}
//----------------------------------------------------------------------
// 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;
}
nsCOMPtr<nsIDocument> old_doc;
newContent->GetDocument(*getter_AddRefs(old_doc));
if (old_doc && old_doc != mDocument &&
!nsContentUtils::CanCallerAccess(aNewChild)) {
return NS_ERROR_DOM_SECURITY_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, old_count, i;
nsCOMPtr<nsIDocumentFragment> doc_fragment(do_QueryInterface(newContent));
NS_ENSURE_TRUE(doc_fragment, NS_ERROR_UNEXPECTED);
doc_fragment->DisconnectChildren();
newContent->ChildCount(count);
ChildCount(old_count);
PRBool do_notify = !!aRefChild;
if (count && !do_notify && mDocument) {
mDocument->BeginUpdate();
}
/*
* 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++) {
// Get the n:th child from the document fragment. Since we
// disconnected the children from the document fragment they
// won't be removed from the document fragment when inserted
// into the new parent. This lets us do this operation *much*
// faster.
res = newContent->ChildAt(i, *getter_AddRefs(childContent));
if (NS_FAILED(res)) {
break;
}
// Insert the child and increment the insertion position
res = InsertChildAt(childContent, refPos++, do_notify, PR_TRUE);
if (NS_FAILED(res)) {
break;
}
}
if (NS_FAILED(res)) {
// This should put the children that were moved out of the
// document fragment back into the document fragment and remove
// them from the element they were intserted into.
doc_fragment->ReconnectChildren();
return res;
}
if (count && !do_notify && mDocument) {
mDocument->ContentAppended(this, old_count);
mDocument->EndUpdate();
}
doc_fragment->DropChildReferences();
} 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--;
}
}
}
nsContentUtils::ReparentContentWrapper(newContent, this, mDocument,
old_doc);
res = InsertChildAt(newContent, refPos, PR_TRUE, 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> old_doc;
newContent->GetDocument(*getter_AddRefs(old_doc));
if (old_doc && old_doc != mDocument &&
!nsContentUtils::CanCallerAccess(aNewChild)) {
return NS_ERROR_DOM_SECURITY_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;
}
// Insert the child and increment the insertion position
if (i) {
res = InsertChildAt(childContent, oldPos++, PR_TRUE, PR_TRUE);
} else {
res = ReplaceChildAt(childContent, oldPos++, PR_TRUE, 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--;
}
}
}
nsContentUtils::ReparentContentWrapper(newContent, this, mDocument,
old_doc);
if (aNewChild == aOldChild) {
// We're replacing a child with itself. In this case the child
// has already been removed from this element once we get here
// so we can't call ReplaceChildAt() (since aOldChild is no
// longer at oldPos). In stead we'll call InsertChildAt() to put
// the child back where it was.
res = InsertChildAt(newContent, oldPos, PR_TRUE, PR_TRUE);
} else {
res = ReplaceChildAt(newContent, oldPos, PR_TRUE, 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(nsIDOM3Node))) {
inst = new nsNode3Tearoff(this);
NS_ENSURE_TRUE(inst, NS_ERROR_OUT_OF_MEMORY);
} else if (aIID.Equals(NS_GET_IID(nsIDOMEventReceiver)) ||
aIID.Equals(NS_GET_IID(nsIDOMEventTarget))) {
inst = NS_STATIC_CAST(nsIDOMEventReceiver *,
nsDOMEventRTTearoff::Create(this));
NS_ENSURE_TRUE(inst, NS_ERROR_OUT_OF_MEMORY);
} else if (aIID.Equals(NS_GET_IID(nsIDOM3EventTarget))) {
inst = NS_STATIC_CAST(nsIDOM3EventTarget *,
nsDOMEventRTTearoff::Create(this));
NS_ENSURE_TRUE(inst, NS_ERROR_OUT_OF_MEMORY);
} else {
return NS_NOINTERFACE;
}
NS_ADDREF(inst);
*aInstancePtr = inst;
return NS_OK;
}
NS_IMPL_ADDREF(nsGenericElement)
NS_IMPL_RELEASE(nsGenericElement)
nsresult
nsGenericElement::PostQueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (mDocument) {
nsCOMPtr<nsIBindingManager> manager;
mDocument->GetBindingManager(getter_AddRefs(manager));
if (manager)
return manager->GetBindingImplementation(this, aIID, aInstancePtr);
}
return NS_NOINTERFACE;
}
//----------------------------------------------------------------------
nsresult
nsGenericElement::LeaveLink(nsIPresContext* aPresContext)
{
nsCOMPtr<nsILinkHandler> handler;
nsresult rv = aPresContext->GetLinkHandler(getter_AddRefs(handler));
if (NS_FAILED(rv) || (nsnull == handler)) {
return rv;
}
return handler->OnLeaveLink();
}
nsresult
nsGenericElement::TriggerLink(nsIPresContext* aPresContext,
nsLinkVerb aVerb,
nsIURI* aBaseURL,
const nsAString& aURLSpec,
const nsAFlatString& aTargetSpec,
PRBool aClick)
{
nsCOMPtr<nsILinkHandler> handler;
nsresult rv = aPresContext->GetLinkHandler(getter_AddRefs(handler));
if (NS_FAILED(rv) || !handler) return rv;
// Resolve url to an absolute url
nsCOMPtr<nsIURI> targetURI;
nsAutoString docCharset;
if (mDocument &&
NS_SUCCEEDED(mDocument->GetDocumentCharacterSet(docCharset))) {
rv = NS_NewURI(getter_AddRefs(targetURI), aURLSpec,
NS_LossyConvertUCS2toASCII(docCharset).get(), aBaseURL);
} else {
rv = NS_NewURI(getter_AddRefs(targetURI), aURLSpec, nsnull, aBaseURL);
}
NS_ENSURE_SUCCESS(rv, rv);
// 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.
nsCOMPtr<nsIScriptSecurityManager> securityManager =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv))
proceed =
securityManager->CheckLoadURI(aBaseURL, targetURI,
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, targetURI,
aTargetSpec.get());
} else {
handler->OnOverLink(this, targetURI,
aTargetSpec.get());
}
return rv;
}
nsresult
nsGenericElement::AddScriptEventListener(nsIAtom* aAttribute,
const nsAString& aValue)
{
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) {
ret = manager->AddScriptEventListener(context, global, aAttribute,
aValue, PR_FALSE);
}
} else {
nsCOMPtr<nsIEventListenerManager> manager;
GetListenerManager(getter_AddRefs(manager));
if (manager) {
ret = manager->AddScriptEventListener(context, this, aAttribute, aValue,
PR_TRUE);
}
}
return ret;
}
//----------------------------------------------------------------------
struct nsGenericAttribute
{
nsGenericAttribute(nsINodeInfo *aNodeInfo, const nsAString& 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::NormalizeAttrString(const nsAString& 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->SetAttr(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, 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 (!slots->mChildNodes) {
slots->mChildNodes = new nsChildContentList(this);
if (!slots->mChildNodes) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(slots->mChildNodes);
}
return CallQueryInterface(slots->mChildNodes, 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.SafeElementAt(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)
{
if (mChildren.Count() != 0) {
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::SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
const nsAString& 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 SetAttr(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::SetAttr(nsINodeInfo* aNodeInfo,
const nsAString& 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 nsAutoVoidArray();
NS_ENSURE_TRUE(mAttributes, NS_ERROR_OUT_OF_MEMORY);
}
nsCOMPtr<nsIAtom> name;
PRInt32 nameSpaceID;
aNodeInfo->GetNameAtom(*getter_AddRefs(name));
aNodeInfo->GetNamespaceID(nameSpaceID);
if (aNotify && (nsnull != mDocument)) {
mDocument->BeginUpdate();
mDocument->AttributeWillChange(this, nameSpaceID, name);
}
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<nsIBindingManager> bindingManager;
mDocument->GetBindingManager(getter_AddRefs(bindingManager));
nsCOMPtr<nsIXBLBinding> binding;
bindingManager->GetBinding(this, getter_AddRefs(binding));
if (binding)
binding->AttributeChanged(name, nameSpaceID, PR_FALSE, aNotify);
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));
}
if (modification) {
mutation.mAttrChange = nsIDOMMutationEvent::MODIFICATION;
} else {
mutation.mAttrChange = nsIDOMMutationEvent::ADDITION;
}
nsEventStatus status = nsEventStatus_eIgnore;
HandleDOMEvent(nsnull, &mutation, nsnull,
NS_EVENT_FLAG_INIT, &status);
}
if (aNotify) {
PRInt32 modHint = modification ? PRInt32(nsIDOMMutationEvent::MODIFICATION)
: PRInt32(nsIDOMMutationEvent::ADDITION);
mDocument->AttributeChanged(this, nameSpaceID, name, modHint,
NS_STYLE_HINT_UNKNOWN);
mDocument->EndUpdate();
}
}
return rv;
}
nsresult
nsGenericContainerElement::GetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
nsAString& aResult) const
{
nsCOMPtr<nsIAtom> prefix;
return GetAttr(aNameSpaceID, aName, *getter_AddRefs(prefix), aResult);
}
nsresult
nsGenericContainerElement::GetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
nsIAtom*& aPrefix,
nsAString& 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 (!aResult.IsEmpty()) {
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;
}
NS_IMETHODIMP_(PRBool)
nsGenericContainerElement::HasAttr(PRInt32 aNameSpaceID, nsIAtom* aName) const
{
NS_ASSERTION(nsnull != aName, "must have attribute name");
if (nsnull == aName)
return PR_FALSE;
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))) {
return PR_TRUE;
}
}
}
return PR_FALSE;
}
nsresult
nsGenericContainerElement::UnsetAttr(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();
mDocument->AttributeWillChange(this, aNameSpaceID, aName);
}
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;
this->HandleDOMEvent(nsnull, &mutation, nsnull,
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, aNotify);
if (aNotify) {
mDocument->AttributeChanged(this, aNameSpaceID, aName, nsIDOMMutationEvent::REMOVAL,
NS_STYLE_HINT_UNKNOWN);
mDocument->EndUpdate();
}
}
}
return rv;
}
nsresult
nsGenericContainerElement::GetAttrNameAt(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::GetAttrCount(PRInt32& aResult) const
{
if (nsnull != mAttributes) {
aResult = mAttributes->Count();
} else {
aResult = 0;
}
return NS_OK;
}
#ifdef DEBUG
void
nsGenericContainerElement::ListAttributes(FILE* out) const
{
PRInt32 index, count;
GetAttrCount(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.Append(NS_LITERAL_STRING("="));
buffer.Append(attr->mValue);
fputs(" ", out);
fputs(NS_LossyConvertUCS2toASCII(buffer).get(), 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(NS_LossyConvertUCS2toASCII(buf).get(), out);
fprintf(out, "@%p", this);
ListAttributes(out);
fprintf(out, " refcount=%d<", mRefCnt.get());
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);
if (mDocument) {
nsCOMPtr<nsIBindingManager> bindingManager;
mDocument->GetBindingManager(getter_AddRefs(bindingManager));
if (bindingManager) {
nsCOMPtr<nsIDOMNodeList> anonymousChildren;
bindingManager->GetAnonymousNodesFor(NS_STATIC_CAST(nsIContent*, NS_CONST_CAST(nsGenericContainerElement*, this)),
getter_AddRefs(anonymousChildren));
if (anonymousChildren) {
PRUint32 length;
anonymousChildren->GetLength(&length);
if (length) {
for (index = aIndent; --index >= 0; ) fputs(" ", out);
fputs("anonymous-children<\n", out);
for (PRUint32 i = 0; i < length; ++i) {
nsCOMPtr<nsIDOMNode> node;
anonymousChildren->Item(i, getter_AddRefs(node));
nsCOMPtr<nsIContent> child = do_QueryInterface(node);
child->List(out, aIndent + 1);
}
for (index = aIndent; --index >= 0; ) fputs(" ", out);
fputs(">\n", out);
}
}
PRBool hasContentList;
bindingManager->HasContentListFor(NS_STATIC_CAST(nsIContent*, NS_CONST_CAST(nsGenericContainerElement*, this)),
&hasContentList);
if (hasContentList) {
nsCOMPtr<nsIDOMNodeList> contentList;
bindingManager->GetContentListFor(NS_STATIC_CAST(nsIContent*, NS_CONST_CAST(nsGenericContainerElement*, this)),
getter_AddRefs(contentList));
NS_ASSERTION(contentList != nsnull, "oops, binding manager lied");
PRUint32 length;
contentList->GetLength(&length);
if (length) {
for (index = aIndent; --index >= 0; ) fputs(" ", out);
fputs("content-list<\n", out);
for (PRUint32 i = 0; i < length; ++i) {
nsCOMPtr<nsIDOMNode> node;
contentList->Item(i, getter_AddRefs(node));
nsCOMPtr<nsIContent> child = do_QueryInterface(node);
child->List(out, aIndent + 1);
}
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;
}
#endif
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
{
// I really prefer NOT to do this test on all ChildAt calls - perhaps we
// should add FastChildAt().
nsIContent *child = (nsIContent *)mChildren.SafeElementAt(aIndex);
NS_IF_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,
PRBool aDeepSetDocument)
{
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, aDeepSetDocument, 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;
aKid->HandleDOMEvent(nsnull, &mutation, nsnull,
NS_EVENT_FLAG_INIT, &status);
}
}
}
if (aNotify && (nsnull != doc)) {
doc->EndUpdate();
}
return NS_OK;
}
nsresult
nsGenericContainerElement::ReplaceChildAt(nsIContent* aKid,
PRInt32 aIndex,
PRBool aNotify,
PRBool aDeepSetDocument)
{
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, aDeepSetDocument, 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,
PRBool aDeepSetDocument)
{
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, aDeepSetDocument, 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;
aKid->HandleDOMEvent(nsnull, &mutation, nsnull,
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, nsnull,
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;
}
#ifdef DEBUG
PRUint32
nsGenericContainerElement::BaseSizeOf(nsISizeOfHandler *aSizer) const
{
PRUint32 sum = 0;
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;
}
}
}
return sum;
}
#endif
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