18f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian/* 28f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * Copyright (C) 2009 Google Inc. All rights reserved. 38f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 48f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * Redistribution and use in source and binary forms, with or without 58f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * modification, are permitted provided that the following conditions are 68f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * met: 78f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 88f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * * Redistributions of source code must retain the above copyright 98f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * notice, this list of conditions and the following disclaimer. 108f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * * Redistributions in binary form must reproduce the above 118f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * copyright notice, this list of conditions and the following disclaimer 128f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * in the documentation and/or other materials provided with the 138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * distribution. 148f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * * Neither the name of Google Inc. nor the names of its 158f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * contributors may be used to endorse or promote products derived from 168f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * this software without specific prior written permission. 178f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * 188f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 208f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 218f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 228f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 238f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 248f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 258f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 268f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian */ 308f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "config.h" 328f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "V8CustomVoidCallback.h" 338f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 345af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke#include "ScriptExecutionContext.h" 35dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block#include "V8Binding.h" 365af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke#include "V8Proxy.h" 378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qiannamespace WebCore { 398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 405af96e2c7b73ebc627c6894727826a7576d31758Leon ClarkeV8CustomVoidCallback::V8CustomVoidCallback(v8::Local<v8::Object> callback, ScriptExecutionContext *context) 418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian : m_callback(v8::Persistent<v8::Object>::New(callback)) 425af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke , m_scriptExecutionContext(context) 43545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch , m_worldContext(UseCurrentWorld) 448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianV8CustomVoidCallback::~V8CustomVoidCallback() 488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_callback.Dispose(); 508f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianvoid V8CustomVoidCallback::handleEvent() 538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 548f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian v8::HandleScope handleScope; 558f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 56545e470e52f0ac6a3a072bf559c796b42c6066b6Ben Murdoch v8::Handle<v8::Context> v8Context = toV8Context(m_scriptExecutionContext.get(), m_worldContext); 575af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke if (v8Context.IsEmpty()) 588f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return; 598f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 605af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke v8::Context::Scope scope(v8Context); 618f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 628f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian bool callbackReturnValue = false; 635af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke invokeCallback(m_callback, 0, 0, callbackReturnValue, m_scriptExecutionContext.get()); 648f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 658f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 665af96e2c7b73ebc627c6894727826a7576d31758Leon Clarkebool invokeCallback(v8::Persistent<v8::Object> callback, int argc, v8::Handle<v8::Value> argv[], bool& callbackReturnValue, ScriptExecutionContext* scriptExecutionContext) 678f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian{ 688f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian v8::TryCatch exceptionCatcher; 69bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen exceptionCatcher.SetVerbose(true); 708f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 718f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian v8::Local<v8::Function> callbackFunction; 728f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (callback->IsFunction()) { 738f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian callbackFunction = v8::Local<v8::Function>::New(v8::Persistent<v8::Function>::Cast(callback)); 748f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else if (callback->IsObject()) { 758f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian v8::Local<v8::Value> handleEventFunction = callback->Get(v8::String::NewSymbol("handleEvent")); 76dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (handleEventFunction->IsFunction()) 778f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian callbackFunction = v8::Local<v8::Function>::Cast(handleEventFunction); 788f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian } else 798f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return false; 808f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 818f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (callbackFunction.IsEmpty()) 828f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return false; 838f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 848f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian v8::Handle<v8::Object> thisObject = v8::Context::GetCurrent()->Global(); 858f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 865af96e2c7b73ebc627c6894727826a7576d31758Leon Clarke v8::Handle<v8::Value> result = callbackFunction->Call(thisObject, argc, argv); 87dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block callbackReturnValue = !result.IsEmpty() && result->BooleanValue(); 88bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen return exceptionCatcher.HasCaught(); 898f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} 908f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 918f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian} // namespace WebCore 92