126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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.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):
|
|
* Adam Lock <adamlock@netscape.com>
|
|
*
|
|
*
|
|
* 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 "stdafx.h"
|
|
#include "IEHtmlNode.h"
|
|
|
|
#include "plhash.h"
|
|
|
|
static PLHashTable *g_NodeLookupTable;
|
|
|
|
static PLHashNumber PR_CALLBACK HashFunction(const void *key)
|
|
{
|
|
return (PRUint32) key;
|
|
}
|
|
|
|
PRIntn PR_CALLBACK HashComparator(const void *v1, const void *v2)
|
|
{
|
|
if (v1 == v2)
|
|
{
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
CIEHtmlNode::CIEHtmlNode() :
|
|
mParent(NULL)
|
|
{
|
|
}
|
|
|
|
CIEHtmlNode::~CIEHtmlNode()
|
|
{
|
|
SetDOMNode(nsnull);
|
|
}
|
|
|
|
|
|
HRESULT CIEHtmlNode::SetParent(CIEHtmlNode *pParent)
|
|
{
|
|
mParent = pParent;
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
HRESULT CIEHtmlNode::FindFromDOMNode(nsIDOMNode *pIDOMNode, CIEHtmlNode **pHtmlNode)
|
|
{
|
|
if (pIDOMNode == nsnull)
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
if (g_NodeLookupTable == NULL)
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
nsCOMPtr<nsISupports> nodeAsSupports = do_QueryInterface(pIDOMNode);
|
|
*pHtmlNode = (CIEHtmlNode *) PL_HashTableLookup(g_NodeLookupTable, nodeAsSupports);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CIEHtmlNode::SetDOMNode(nsIDOMNode *pIDOMNode)
|
|
{
|
|
if (pIDOMNode)
|
|
{
|
|
if (g_NodeLookupTable == NULL)
|
|
{
|
|
g_NodeLookupTable = PL_NewHashTable(123, HashFunction, HashComparator, NULL, NULL, NULL);
|
|
}
|
|
|
|
mDOMNode = pIDOMNode;
|
|
nsCOMPtr<nsISupports> nodeAsSupports= do_QueryInterface(mDOMNode);
|
|
PL_HashTableAdd(g_NodeLookupTable, nodeAsSupports, this);
|
|
}
|
|
else if (mDOMNode)
|
|
{
|
|
// Remove the entry from the hashtable
|
|
nsCOMPtr<nsISupports> nodeAsSupports = do_QueryInterface(mDOMNode);
|
|
PL_HashTableRemove(g_NodeLookupTable, nodeAsSupports);
|
|
mDOMNode = nsnull;
|
|
|
|
if (g_NodeLookupTable->nentries == 0)
|
|
{
|
|
PL_HashTableDestroy(g_NodeLookupTable);
|
|
g_NodeLookupTable = NULL;
|
|
}
|
|
}
|
|
return S_OK;
|
|
}
|