1635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project/* 28f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * Copyright (C) 2008, 2009 Google Inc. All rights reserved. 38f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 4635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * Redistribution and use in source and binary forms, with or without 5635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * modification, are permitted provided that the following conditions are 6635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * met: 78f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 8635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Redistributions of source code must retain the above copyright 9635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * notice, this list of conditions and the following disclaimer. 10635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Redistributions in binary form must reproduce the above 11635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * copyright notice, this list of conditions and the following disclaimer 12635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * in the documentation and/or other materials provided with the 13635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * distribution. 14635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Neither the name of Google Inc. nor the names of its 15635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * contributors may be used to endorse or promote products derived from 16635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * this software without specific prior written permission. 178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 18635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project */ 308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 31635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "config.h" 328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "V8NodeFilterCondition.h" 33635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 348f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "Node.h" 358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "NodeFilter.h" 368f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "ScriptState.h" 375e2bc6953fe6923165b8a5d7679939693a1d58d6Steve Block#include "V8Node.h" 388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "V8Proxy.h" 39635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include <wtf/OwnArrayPtr.h> 41635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 42635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectnamespace WebCore { 43635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianV8NodeFilterCondition::V8NodeFilterCondition(v8::Handle<v8::Value> filter) 458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian : m_filter(v8::Persistent<v8::Value>::New(filter)) 46635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#ifndef NDEBUG 480bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch V8GCController::registerGlobalHandle(NODE_FILTER, this, m_filter); 498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#endif 50635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 51635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianV8NodeFilterCondition::~V8NodeFilterCondition() 53635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#ifndef NDEBUG 550bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch V8GCController::unregisterGlobalHandle(this, m_filter); 568f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#endif 578f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_filter.Dispose(); 588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_filter.Clear(); 59635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 60635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianshort V8NodeFilterCondition::acceptNode(ScriptState* state, Node* node) const 62635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project{ 638f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ASSERT(v8::Context::InContext()); 648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 65e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block if (!m_filter->IsObject()) 668f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return NodeFilter::FILTER_ACCEPT; 678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian v8::TryCatch exceptionCatcher; 698f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 70e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block v8::Handle<v8::Function> callback; 71e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block if (m_filter->IsFunction()) 72e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block callback = v8::Handle<v8::Function>::Cast(m_filter); 73e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block else { 74e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block v8::Local<v8::Value> value = m_filter->ToObject()->Get(v8::String::New("acceptNode")); 75e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block if (!value->IsFunction()) { 76e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block V8Proxy::throwError(V8Proxy::TypeError, "NodeFilter object does not have an acceptNode function"); 77e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block return NodeFilter::FILTER_REJECT; 78e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block } 79e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block callback = v8::Handle<v8::Function>::Cast(value); 80e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block } 81e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block 828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian v8::Handle<v8::Object> object = v8::Context::GetCurrent()->Global(); 832fc2651226baac27029e38c9d6ef883fa32084dbSteve Block OwnArrayPtr<v8::Handle<v8::Value> > args = adoptArrayPtr(new v8::Handle<v8::Value>[1]); 845e2bc6953fe6923165b8a5d7679939693a1d58d6Steve Block args[0] = toV8(node); 858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 86dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block v8::Handle<v8::Value> result = V8Proxy::callFunctionWithoutFrame(callback, object, 1, args.get()); 878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 888f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (exceptionCatcher.HasCaught()) { 898f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian state->setException(exceptionCatcher.Exception()); 908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return NodeFilter::FILTER_REJECT; 918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } 928f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 938f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian ASSERT(!result.IsEmpty()); 948f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 958f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return result->Int32Value(); 96635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} 97635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 98635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} // namespace WebCore 99