1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 33 #if ENABLE(WORKERS) 34 #include "V8WorkerContext.h" 35 36 #include "DOMTimer.h" 37 #include "ExceptionCode.h" 38 #include "ScheduledAction.h" 39 #include "V8Binding.h" 40 #include "V8BindingMacros.h" 41 #include "V8Proxy.h" 42 #include "V8Utilities.h" 43 #include "V8WorkerContextEventListener.h" 44 #include "WebSocket.h" 45 #include "WorkerContext.h" 46 #include "WorkerContextExecutionProxy.h" 47 48 namespace WebCore { 49 50 v8::Handle<v8::Value> SetTimeoutOrInterval(const v8::Arguments& args, bool singleShot) 51 { 52 WorkerContext* workerContext = V8WorkerContext::toNative(args.Holder()); 53 54 int argumentCount = args.Length(); 55 if (argumentCount < 1) 56 return v8::Undefined(); 57 58 v8::Handle<v8::Value> function = args[0]; 59 int32_t timeout = argumentCount >= 2 ? args[1]->Int32Value() : 0; 60 int timerId; 61 62 WorkerContextExecutionProxy* proxy = workerContext->script()->proxy(); 63 if (!proxy) 64 return v8::Undefined(); 65 66 v8::Handle<v8::Context> v8Context = proxy->context(); 67 if (function->IsString()) { 68 WTF::String stringFunction = toWebCoreString(function); 69 timerId = DOMTimer::install(workerContext, new ScheduledAction(v8Context, stringFunction, workerContext->url()), timeout, singleShot); 70 } else if (function->IsFunction()) { 71 size_t paramCount = argumentCount >= 2 ? argumentCount - 2 : 0; 72 v8::Local<v8::Value>* params = 0; 73 if (paramCount > 0) { 74 params = new v8::Local<v8::Value>[paramCount]; 75 for (size_t i = 0; i < paramCount; ++i) 76 params[i] = args[i+2]; 77 } 78 // ScheduledAction takes ownership of actual params and releases them in its destructor. 79 ScheduledAction* action = new ScheduledAction(v8Context, v8::Handle<v8::Function>::Cast(function), paramCount, params); 80 delete [] params; 81 timerId = DOMTimer::install(workerContext, action, timeout, singleShot); 82 } else 83 return v8::Undefined(); 84 85 return v8::Integer::New(timerId); 86 } 87 88 v8::Handle<v8::Value> V8WorkerContext::importScriptsCallback(const v8::Arguments& args) 89 { 90 INC_STATS(L"DOM.WorkerContext.importScripts()"); 91 if (!args.Length()) 92 return v8::Undefined(); 93 94 Vector<String> urls; 95 for (int i = 0; i < args.Length(); i++) { 96 v8::TryCatch tryCatch; 97 v8::Handle<v8::String> scriptUrl = args[i]->ToString(); 98 if (tryCatch.HasCaught() || scriptUrl.IsEmpty()) 99 return v8::Undefined(); 100 urls.append(toWebCoreString(scriptUrl)); 101 } 102 103 WorkerContext* workerContext = V8WorkerContext::toNative(args.Holder()); 104 105 ExceptionCode ec = 0; 106 workerContext->importScripts(urls, ec); 107 108 if (ec) 109 return throwError(ec); 110 111 return v8::Undefined(); 112 } 113 114 v8::Handle<v8::Value> V8WorkerContext::setTimeoutCallback(const v8::Arguments& args) 115 { 116 INC_STATS(L"DOM.WorkerContext.setTimeout()"); 117 return SetTimeoutOrInterval(args, true); 118 } 119 120 v8::Handle<v8::Value> V8WorkerContext::setIntervalCallback(const v8::Arguments& args) 121 { 122 INC_STATS(L"DOM.WorkerContext.setInterval()"); 123 return SetTimeoutOrInterval(args, false); 124 } 125 126 v8::Handle<v8::Value> toV8(WorkerContext* impl) 127 { 128 if (!impl) 129 return v8::Null(); 130 131 WorkerContextExecutionProxy* proxy = impl->script()->proxy(); 132 if (!proxy) 133 return v8::Null(); 134 135 v8::Handle<v8::Object> global = proxy->context()->Global(); 136 ASSERT(!global.IsEmpty()); 137 return global; 138 } 139 140 } // namespace WebCore 141 142 #endif // ENABLE(WORKERS) 143