1/* 2 * Copyright (C) 2001 Peter Kelly (pmk@post.com) 3 * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20#ifndef JSNodeFilterCondition_h 21#define JSNodeFilterCondition_h 22 23#include "NodeFilterCondition.h" 24#include <heap/Weak.h> 25#include <heap/WeakInlines.h> 26#include <runtime/JSCInlines.h> 27#include <runtime/JSCJSValue.h> 28#include <wtf/PassRefPtr.h> 29 30namespace WebCore { 31 32 class Node; 33 class NodeFilter; 34 35 class JSNodeFilterCondition : public NodeFilterCondition { 36 public: 37 static PassRefPtr<JSNodeFilterCondition> create(JSC::VM& vm, NodeFilter* owner, JSC::JSValue filter) 38 { 39 return adoptRef(new JSNodeFilterCondition(vm, owner, filter)); 40 } 41 42 private: 43 JSNodeFilterCondition(JSC::VM&, NodeFilter* owner, JSC::JSValue filter); 44 45 virtual short acceptNode(JSC::ExecState*, Node*) const; 46 47 class WeakOwner : public JSC::WeakHandleOwner { 48 virtual bool isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown>, void* context, JSC::SlotVisitor&); 49 }; 50 WeakOwner m_weakOwner; 51 mutable JSC::Weak<JSC::JSObject> m_filter; 52 }; 53 54} // namespace WebCore 55 56#endif // JSNodeFilterCondition_h 57