mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
311 lines
7.8 KiB
C++
311 lines
7.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* Class that represents a prefix/namespace/localName triple; a single
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* nodeinfo is shared by all elements in a document that have that
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* prefix, namespace, and localName.
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*/
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#include "nscore.h"
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#include "nsNodeInfo.h"
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#include "nsNodeInfoManager.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsIAtom.h"
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#include "nsDOMString.h"
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#include "nsCRT.h"
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#include "nsContentUtils.h"
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#include "nsReadableUtils.h"
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#include "nsAutoPtr.h"
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#include NEW_H
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#include "nsFixedSizeAllocator.h"
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static const size_t kNodeInfoPoolSizes[] = {
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sizeof(nsNodeInfo)
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};
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static const PRInt32 kNodeInfoPoolInitialSize =
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(NS_SIZE_IN_HEAP(sizeof(nsNodeInfo))) * 64;
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// static
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nsFixedSizeAllocator* nsNodeInfo::sNodeInfoPool = nsnull;
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// static
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nsNodeInfo*
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nsNodeInfo::Create()
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{
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if (!sNodeInfoPool) {
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sNodeInfoPool = new nsFixedSizeAllocator();
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if (!sNodeInfoPool)
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return nsnull;
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nsresult rv = sNodeInfoPool->Init("NodeInfo Pool", kNodeInfoPoolSizes,
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1, kNodeInfoPoolInitialSize);
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if (NS_FAILED(rv)) {
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delete sNodeInfoPool;
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sNodeInfoPool = nsnull;
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return nsnull;
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}
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}
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// Create a new one
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void* place = sNodeInfoPool->Alloc(sizeof(nsNodeInfo));
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return place ? new (place) nsNodeInfo() : nsnull;
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}
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nsNodeInfo::nsNodeInfo()
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{
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}
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nsNodeInfo::~nsNodeInfo()
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{
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if (mOwnerManager) {
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mOwnerManager->RemoveNodeInfo(this);
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NS_RELEASE(mOwnerManager);
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}
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NS_IF_RELEASE(mInner.mName);
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NS_IF_RELEASE(mInner.mPrefix);
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}
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nsresult
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nsNodeInfo::Init(nsIAtom *aName, nsIAtom *aPrefix, PRInt32 aNamespaceID,
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nsNodeInfoManager *aOwnerManager)
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{
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NS_ENSURE_TRUE(!mInner.mName && !mInner.mPrefix && !mOwnerManager,
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NS_ERROR_ALREADY_INITIALIZED);
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NS_ENSURE_ARG_POINTER(aName);
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NS_ENSURE_ARG_POINTER(aOwnerManager);
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mInner.mName = aName;
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NS_ADDREF(mInner.mName);
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mInner.mPrefix = aPrefix;
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NS_IF_ADDREF(mInner.mPrefix);
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mInner.mNamespaceID = aNamespaceID;
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mOwnerManager = aOwnerManager;
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NS_ADDREF(mOwnerManager);
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return NS_OK;
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}
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// nsISupports
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NS_IMPL_CYCLE_COLLECTION_CLASS(nsNodeInfo)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_0(nsNodeInfo)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsNodeInfo)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NATIVE_MEMBER(mOwnerManager,
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nsNodeInfoManager)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(nsNodeInfo)
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NS_IMPL_CYCLE_COLLECTING_RELEASE_WITH_DESTROY(nsNodeInfo, LastRelease())
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NS_INTERFACE_TABLE_HEAD(nsNodeInfo)
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NS_INTERFACE_TABLE1(nsNodeInfo, nsINodeInfo)
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NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(nsNodeInfo)
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NS_INTERFACE_MAP_END
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// nsINodeInfo
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void
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nsNodeInfo::GetQualifiedName(nsAString& aQualifiedName) const
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{
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if (mInner.mPrefix) {
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mInner.mPrefix->ToString(aQualifiedName);
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aQualifiedName.Append(PRUnichar(':'));
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} else {
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aQualifiedName.Truncate();
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}
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nsAutoString name;
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mInner.mName->ToString(name);
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aQualifiedName.Append(name);
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}
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void
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nsNodeInfo::GetLocalName(nsAString& aLocalName) const
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{
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#ifdef STRICT_DOM_LEVEL2_LOCALNAME
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if (mInner.mNamespaceID > 0) {
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mInner.mName->ToString(aLocalName);
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} else {
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SetDOMStringToNull(aLocalName);
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}
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#else
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mInner.mName->ToString(aLocalName);
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#endif
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}
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nsresult
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nsNodeInfo::GetNamespaceURI(nsAString& aNameSpaceURI) const
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{
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nsresult rv = NS_OK;
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if (mInner.mNamespaceID > 0) {
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rv = nsContentUtils::NameSpaceManager()->GetNameSpaceURI(mInner.mNamespaceID,
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aNameSpaceURI);
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} else {
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SetDOMStringToNull(aNameSpaceURI);
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}
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return rv;
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}
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PRBool
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nsNodeInfo::Equals(const nsAString& aName) const
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{
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return mInner.mName->Equals(aName);
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}
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PRBool
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nsNodeInfo::Equals(const nsAString& aName, const nsAString& aPrefix) const
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{
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if (!mInner.mName->Equals(aName)) {
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return PR_FALSE;
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}
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if (!mInner.mPrefix) {
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return aPrefix.IsEmpty();
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}
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return mInner.mPrefix->Equals(aPrefix);
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}
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PRBool
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nsNodeInfo::Equals(const nsAString& aName, PRInt32 aNamespaceID) const
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{
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return mInner.mNamespaceID == aNamespaceID &&
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mInner.mName->Equals(aName);
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}
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PRBool
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nsNodeInfo::Equals(const nsAString& aName, const nsAString& aPrefix,
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PRInt32 aNamespaceID) const
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{
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if (!mInner.mNamespaceID == aNamespaceID ||
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!mInner.mName->Equals(aName))
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return PR_FALSE;
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return mInner.mPrefix ? mInner.mPrefix->Equals(aPrefix) :
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aPrefix.IsEmpty();
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}
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PRBool
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nsNodeInfo::NamespaceEquals(const nsAString& aNamespaceURI) const
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{
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PRInt32 nsid =
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nsContentUtils::NameSpaceManager()->GetNameSpaceID(aNamespaceURI);
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return nsINodeInfo::NamespaceEquals(nsid);
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}
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PRBool
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nsNodeInfo::QualifiedNameEqualsInternal(const nsAString& aQualifiedName) const
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{
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NS_PRECONDITION(mInner.mPrefix, "Must have prefix");
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nsAString::const_iterator start;
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aQualifiedName.BeginReading(start);
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nsAString::const_iterator colon(start);
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nsDependentAtomString prefix(mInner.mPrefix);
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if (prefix.Length() >= aQualifiedName.Length()) {
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return PR_FALSE;
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}
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colon.advance(prefix.Length());
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// If the character at the prefix length index is not a colon,
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// aQualifiedName is not equal to this string.
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if (*colon != ':') {
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return PR_FALSE;
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}
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// Compare the prefix to the string from the start to the colon
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if (!prefix.Equals(Substring(start, colon)))
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return PR_FALSE;
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++colon; // Skip the ':'
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nsAString::const_iterator end;
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aQualifiedName.EndReading(end);
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// Compare the local name to the string between the colon and the
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// end of aQualifiedName
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return mInner.mName->Equals(Substring(colon, end));
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}
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// static
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void
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nsNodeInfo::ClearCache()
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{
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// Clear our cache.
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delete sNodeInfoPool;
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sNodeInfoPool = nsnull;
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}
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void
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nsNodeInfo::LastRelease()
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{
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nsRefPtr<nsNodeInfoManager> kungFuDeathGrip = mOwnerManager;
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this->~nsNodeInfo();
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// The refcount balancing and destructor re-entrancy protection
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// code in Release() sets mRefCnt to 1 so we have to set it to 0
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// here to prevent leaks
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mRefCnt = 0;
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NS_ASSERTION(sNodeInfoPool, "No NodeInfoPool when deleting NodeInfo!!!");
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sNodeInfoPool->Free(this, sizeof(nsNodeInfo));
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}
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