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/*
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "JSNodeFilterCondition.h"
#include "Document.h"
#include "Frame.h"
#include "JSNode.h"
#include "JSNodeFilter.h"
#include "NodeFilter.h"
#include "kjs_proxy.h"
namespace WebCore {
using namespace KJS;
// FIXME: Add takeException as a member of ExecState?
static JSValue* takeException(ExecState* exec)
{
JSValue* exception = exec->exception();
exec->clearException();
return exception;
}
JSNodeFilterCondition::JSNodeFilterCondition(JSObject* filter)
: m_filter(filter)
{
}
void JSNodeFilterCondition::mark()
{
m_filter->mark();
}
short JSNodeFilterCondition::acceptNode(Node* filterNode, JSValue*& exception) const
{
// FIXME: It makes no sense for this to depend on the document being in a frame!
Frame* frame = filterNode->document()->frame();
if (!frame)
return NodeFilter::FILTER_REJECT;
JSLock lock;
if (!m_filter->implementsCall())
return NodeFilter::FILTER_REJECT;
ExecState* exec = frame->scriptProxy()->globalObject()->globalExec();
List args;
args.append(toJS(exec, filterNode));
if (exec->hadException()) {
exception = takeException(exec);
return NodeFilter::FILTER_REJECT;
}
JSValue* result = m_filter->call(exec, m_filter, args);
if (exec->hadException()) {
exception = takeException(exec);
return NodeFilter::FILTER_REJECT;
}
int intResult = result->toInt32(exec);
if (exec->hadException()) {
exception = takeException(exec);
return NodeFilter::FILTER_REJECT;
}
return intResult;
}
} // namespace WebCore
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