mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
359 lines
9.8 KiB
C++
359 lines
9.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/*
|
|
* A class for handing out nodeinfos and ensuring sharing of them as needed.
|
|
*/
|
|
|
|
#include "nsNodeInfoManager.h"
|
|
#include "nsNodeInfo.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsString.h"
|
|
#include "nsIAtom.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIPrincipal.h"
|
|
#include "nsIURI.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsReadableUtils.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "nsComponentManagerUtils.h"
|
|
#include "nsLayoutStatics.h"
|
|
#include "nsBindingManager.h"
|
|
|
|
#ifdef MOZ_LOGGING
|
|
// so we can get logging even in release builds
|
|
#define FORCE_PR_LOG 1
|
|
#endif
|
|
#include "prlog.h"
|
|
|
|
#ifdef PR_LOGGING
|
|
static PRLogModuleInfo* gNodeInfoManagerLeakPRLog;
|
|
#endif
|
|
|
|
PLHashNumber
|
|
nsNodeInfoManager::GetNodeInfoInnerHashValue(const void *key)
|
|
{
|
|
NS_ASSERTION(key, "Null key passed to nsNodeInfo::GetHashValue!");
|
|
|
|
const nsINodeInfo::nsNodeInfoInner *node =
|
|
reinterpret_cast<const nsINodeInfo::nsNodeInfoInner *>(key);
|
|
|
|
// Is this an acceptable hash value?
|
|
return (PLHashNumber(NS_PTR_TO_INT32(node->mName)) & 0xffff) >> 8;
|
|
}
|
|
|
|
|
|
PRIntn
|
|
nsNodeInfoManager::NodeInfoInnerKeyCompare(const void *key1, const void *key2)
|
|
{
|
|
NS_ASSERTION(key1 && key2, "Null key passed to NodeInfoInnerKeyCompare!");
|
|
|
|
const nsINodeInfo::nsNodeInfoInner *node1 =
|
|
reinterpret_cast<const nsINodeInfo::nsNodeInfoInner *>(key1);
|
|
const nsINodeInfo::nsNodeInfoInner *node2 =
|
|
reinterpret_cast<const nsINodeInfo::nsNodeInfoInner *>(key2);
|
|
|
|
return (node1->mName == node2->mName &&
|
|
node1->mPrefix == node2->mPrefix &&
|
|
node1->mNamespaceID == node2->mNamespaceID);
|
|
}
|
|
|
|
|
|
nsNodeInfoManager::nsNodeInfoManager()
|
|
: mDocument(nsnull),
|
|
mPrincipal(nsnull),
|
|
mTextNodeInfo(nsnull),
|
|
mCommentNodeInfo(nsnull),
|
|
mDocumentNodeInfo(nsnull),
|
|
mBindingManager(nsnull)
|
|
{
|
|
nsLayoutStatics::AddRef();
|
|
|
|
#ifdef PR_LOGGING
|
|
if (!gNodeInfoManagerLeakPRLog)
|
|
gNodeInfoManagerLeakPRLog = PR_NewLogModule("NodeInfoManagerLeak");
|
|
|
|
if (gNodeInfoManagerLeakPRLog)
|
|
PR_LOG(gNodeInfoManagerLeakPRLog, PR_LOG_DEBUG,
|
|
("NODEINFOMANAGER %p created", this));
|
|
#endif
|
|
|
|
mNodeInfoHash = PL_NewHashTable(32, GetNodeInfoInnerHashValue,
|
|
NodeInfoInnerKeyCompare,
|
|
PL_CompareValues, nsnull, nsnull);
|
|
}
|
|
|
|
|
|
nsNodeInfoManager::~nsNodeInfoManager()
|
|
{
|
|
if (mNodeInfoHash)
|
|
PL_HashTableDestroy(mNodeInfoHash);
|
|
|
|
// Note: mPrincipal may be null here if we never got inited correctly
|
|
NS_IF_RELEASE(mPrincipal);
|
|
|
|
NS_IF_RELEASE(mBindingManager);
|
|
|
|
#ifdef PR_LOGGING
|
|
if (gNodeInfoManagerLeakPRLog)
|
|
PR_LOG(gNodeInfoManagerLeakPRLog, PR_LOG_DEBUG,
|
|
("NODEINFOMANAGER %p destroyed", this));
|
|
#endif
|
|
|
|
nsLayoutStatics::Release();
|
|
}
|
|
|
|
|
|
nsrefcnt
|
|
nsNodeInfoManager::AddRef()
|
|
{
|
|
NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");
|
|
|
|
nsrefcnt count = PR_AtomicIncrement((PRInt32*)&mRefCnt);
|
|
NS_LOG_ADDREF(this, count, "nsNodeInfoManager", sizeof(*this));
|
|
|
|
return count;
|
|
}
|
|
|
|
nsrefcnt
|
|
nsNodeInfoManager::Release()
|
|
{
|
|
NS_PRECONDITION(0 != mRefCnt, "dup release");
|
|
|
|
nsrefcnt count = PR_AtomicDecrement((PRInt32 *)&mRefCnt);
|
|
NS_LOG_RELEASE(this, count, "nsNodeInfoManager");
|
|
if (count == 0) {
|
|
mRefCnt = 1; /* stabilize */
|
|
delete this;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(nsNodeInfoManager)
|
|
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(nsNodeInfoManager, AddRef)
|
|
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(nsNodeInfoManager, Release)
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_NATIVE_0(nsNodeInfoManager)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_BEGIN(nsNodeInfoManager)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_RAWPTR(mBindingManager)
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
nsresult
|
|
nsNodeInfoManager::Init(nsIDocument *aDocument)
|
|
{
|
|
NS_ENSURE_TRUE(mNodeInfoHash, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
NS_PRECONDITION(!mPrincipal,
|
|
"Being inited when we already have a principal?");
|
|
nsresult rv = CallCreateInstance("@mozilla.org/nullprincipal;1",
|
|
&mPrincipal);
|
|
NS_ENSURE_TRUE(mPrincipal, rv);
|
|
|
|
if (aDocument) {
|
|
mBindingManager = new nsBindingManager(aDocument);
|
|
NS_ENSURE_TRUE(mBindingManager, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
NS_ADDREF(mBindingManager);
|
|
}
|
|
|
|
mDefaultPrincipal = mPrincipal;
|
|
|
|
mDocument = aDocument;
|
|
|
|
#ifdef PR_LOGGING
|
|
if (gNodeInfoManagerLeakPRLog)
|
|
PR_LOG(gNodeInfoManagerLeakPRLog, PR_LOG_DEBUG,
|
|
("NODEINFOMANAGER %p Init document=%p", this, aDocument));
|
|
#endif
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsNodeInfoManager::DropDocumentReference()
|
|
{
|
|
if (mBindingManager) {
|
|
mBindingManager->DropDocumentReference();
|
|
}
|
|
|
|
mDocument = nsnull;
|
|
}
|
|
|
|
|
|
already_AddRefed<nsINodeInfo>
|
|
nsNodeInfoManager::GetNodeInfo(nsIAtom *aName, nsIAtom *aPrefix,
|
|
PRInt32 aNamespaceID)
|
|
{
|
|
NS_ENSURE_TRUE(aName, nsnull);
|
|
NS_ASSERTION(!aName->Equals(EmptyString()),
|
|
"Don't pass an empty string to GetNodeInfo, fix caller.");
|
|
|
|
nsINodeInfo::nsNodeInfoInner tmpKey(aName, aPrefix, aNamespaceID);
|
|
|
|
void *node = PL_HashTableLookup(mNodeInfoHash, &tmpKey);
|
|
|
|
if (node) {
|
|
nsINodeInfo* nodeInfo = static_cast<nsINodeInfo *>(node);
|
|
|
|
NS_ADDREF(nodeInfo);
|
|
|
|
return nodeInfo;
|
|
}
|
|
|
|
nsRefPtr<nsNodeInfo> newNodeInfo = nsNodeInfo::Create();
|
|
NS_ENSURE_TRUE(newNodeInfo, nsnull);
|
|
|
|
nsresult rv = newNodeInfo->Init(aName, aPrefix, aNamespaceID, this);
|
|
NS_ENSURE_SUCCESS(rv, nsnull);
|
|
|
|
PLHashEntry *he;
|
|
he = PL_HashTableAdd(mNodeInfoHash, &newNodeInfo->mInner, newNodeInfo);
|
|
NS_ENSURE_TRUE(he, nsnull);
|
|
|
|
nsNodeInfo *nodeInfo = nsnull;
|
|
newNodeInfo.swap(nodeInfo);
|
|
|
|
return nodeInfo;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsNodeInfoManager::GetNodeInfo(const nsAString& aName, nsIAtom *aPrefix,
|
|
PRInt32 aNamespaceID, nsINodeInfo** aNodeInfo)
|
|
{
|
|
nsCOMPtr<nsIAtom> name = do_GetAtom(aName);
|
|
*aNodeInfo = nsNodeInfoManager::GetNodeInfo(name, aPrefix, aNamespaceID).get();
|
|
return *aNodeInfo ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsNodeInfoManager::GetNodeInfo(const nsAString& aName, nsIAtom *aPrefix,
|
|
const nsAString& aNamespaceURI,
|
|
nsINodeInfo** aNodeInfo)
|
|
{
|
|
nsCOMPtr<nsIAtom> nameAtom = do_GetAtom(aName);
|
|
NS_ENSURE_TRUE(nameAtom, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
PRInt32 nsid = kNameSpaceID_None;
|
|
|
|
if (!aNamespaceURI.IsEmpty()) {
|
|
nsresult rv = nsContentUtils::NameSpaceManager()->
|
|
RegisterNameSpace(aNamespaceURI, nsid);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
*aNodeInfo = GetNodeInfo(nameAtom, aPrefix, nsid).get();
|
|
return *aNodeInfo ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
already_AddRefed<nsINodeInfo>
|
|
nsNodeInfoManager::GetTextNodeInfo()
|
|
{
|
|
if (!mTextNodeInfo) {
|
|
mTextNodeInfo = GetNodeInfo(nsGkAtoms::textTagName, nsnull, kNameSpaceID_None).get();
|
|
}
|
|
else {
|
|
NS_ADDREF(mTextNodeInfo);
|
|
}
|
|
|
|
return mTextNodeInfo;
|
|
}
|
|
|
|
already_AddRefed<nsINodeInfo>
|
|
nsNodeInfoManager::GetCommentNodeInfo()
|
|
{
|
|
if (!mCommentNodeInfo) {
|
|
mCommentNodeInfo = GetNodeInfo(nsGkAtoms::commentTagName, nsnull, kNameSpaceID_None).get();
|
|
}
|
|
else {
|
|
NS_ADDREF(mCommentNodeInfo);
|
|
}
|
|
|
|
return mCommentNodeInfo;
|
|
}
|
|
|
|
already_AddRefed<nsINodeInfo>
|
|
nsNodeInfoManager::GetDocumentNodeInfo()
|
|
{
|
|
if (!mDocumentNodeInfo) {
|
|
mDocumentNodeInfo = GetNodeInfo(nsGkAtoms::documentNodeName, nsnull, kNameSpaceID_None).get();
|
|
}
|
|
else {
|
|
NS_ADDREF(mDocumentNodeInfo);
|
|
}
|
|
|
|
return mDocumentNodeInfo;
|
|
}
|
|
|
|
void
|
|
nsNodeInfoManager::SetDocumentPrincipal(nsIPrincipal *aPrincipal)
|
|
{
|
|
NS_RELEASE(mPrincipal);
|
|
if (!aPrincipal) {
|
|
aPrincipal = mDefaultPrincipal;
|
|
}
|
|
|
|
NS_ASSERTION(aPrincipal, "Must have principal by this point!");
|
|
|
|
NS_ADDREF(mPrincipal = aPrincipal);
|
|
}
|
|
|
|
void
|
|
nsNodeInfoManager::RemoveNodeInfo(nsNodeInfo *aNodeInfo)
|
|
{
|
|
NS_PRECONDITION(aNodeInfo, "Trying to remove null nodeinfo from manager!");
|
|
|
|
// Drop weak reference if needed
|
|
if (aNodeInfo == mTextNodeInfo) {
|
|
mTextNodeInfo = nsnull;
|
|
}
|
|
else if (aNodeInfo == mCommentNodeInfo) {
|
|
mCommentNodeInfo = nsnull;
|
|
}
|
|
else if (aNodeInfo == mDocumentNodeInfo) {
|
|
mDocumentNodeInfo = nsnull;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
PRBool ret =
|
|
#endif
|
|
PL_HashTableRemove(mNodeInfoHash, &aNodeInfo->mInner);
|
|
|
|
NS_POSTCONDITION(ret, "Can't find nsINodeInfo to remove!!!");
|
|
}
|