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 <runtime/JSValue.h> 26 #include <wtf/PassRefPtr.h> 27 28 namespace WebCore { 29 30 class Node; 31 class NodeFilter; 32 33 class JSNodeFilterCondition : public NodeFilterCondition { 34 public: create(JSC::JSGlobalData & globalData,NodeFilter * owner,JSC::JSValue filter)35 static PassRefPtr<JSNodeFilterCondition> create(JSC::JSGlobalData& globalData, NodeFilter* owner, JSC::JSValue filter) 36 { 37 return adoptRef(new JSNodeFilterCondition(globalData, owner, filter)); 38 } 39 40 private: 41 JSNodeFilterCondition(JSC::JSGlobalData&, NodeFilter* owner, JSC::JSValue filter); 42 43 virtual short acceptNode(ScriptState*, Node*) const; 44 45 class WeakOwner : public JSC::WeakHandleOwner { 46 virtual bool isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown>, void* context, JSC::MarkStack&); 47 }; 48 WeakOwner m_weakOwner; 49 mutable JSC::Weak<JSC::Unknown> m_filter; 50 }; 51 52 } // namespace WebCore 53 54 #endif // JSNodeFilterCondition_h 55