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 "V8Worker.h" 35 36 #include "Worker.h" 37 38 #include "ExceptionCode.h" 39 #include "Frame.h" 40 #include "SerializedScriptValue.h" 41 #include "V8Binding.h" 42 #include "V8MessagePortCustom.h" 43 #include "V8Proxy.h" 44 #include "V8Utilities.h" 45 #include "WorkerContext.h" 46 #include "WorkerContextExecutionProxy.h" 47 48 namespace WebCore { 49 50 v8::Handle<v8::Value> V8Worker::constructorCallback(const v8::Arguments& args) 51 { 52 INC_STATS(L"DOM.Worker.Constructor"); 53 54 if (!args.IsConstructCall()) 55 return throwError("DOM object constructor cannot be called as a function."); 56 57 if (!args.Length()) 58 return throwError("Not enough arguments", V8Proxy::SyntaxError); 59 60 v8::TryCatch tryCatch; 61 v8::Handle<v8::String> scriptUrl = args[0]->ToString(); 62 if (tryCatch.HasCaught()) 63 return throwError(tryCatch.Exception()); 64 65 if (scriptUrl.IsEmpty()) 66 return v8::Undefined(); 67 68 // Get the script execution context. 69 ScriptExecutionContext* context = getScriptExecutionContext(); 70 if (!context) 71 return v8::Undefined(); 72 73 // Create the worker object. 74 // Note: it's OK to let this RefPtr go out of scope because we also call setDOMWrapper(), which effectively holds a reference to obj. 75 ExceptionCode ec = 0; 76 RefPtr<Worker> obj = Worker::create(toWebCoreString(scriptUrl), context, ec); 77 if (ec) 78 return throwError(ec); 79 80 // Setup the standard wrapper object internal fields. 81 v8::Handle<v8::Object> wrapperObject = args.Holder(); 82 V8DOMWrapper::setDOMWrapper(wrapperObject, &info, obj.get()); 83 84 obj->ref(); 85 V8DOMWrapper::setJSWrapperForActiveDOMObject(obj.get(), v8::Persistent<v8::Object>::New(wrapperObject)); 86 87 return wrapperObject; 88 } 89 90 v8::Handle<v8::Value> V8Worker::postMessageCallback(const v8::Arguments& args) 91 { 92 INC_STATS("DOM.Worker.postMessage"); 93 Worker* worker = V8Worker::toNative(args.Holder()); 94 bool didThrow = false; 95 RefPtr<SerializedScriptValue> message = SerializedScriptValue::create(args[0], didThrow); 96 if (didThrow) 97 return v8::Undefined(); 98 MessagePortArray portArray; 99 if (args.Length() > 1) { 100 if (!getMessagePortArray(args[1], portArray)) 101 return v8::Undefined(); 102 } 103 ExceptionCode ec = 0; 104 worker->postMessage(message.release(), &portArray, ec); 105 return throwError(ec); 106 } 107 108 } // namespace WebCore 109 110 #endif // ENABLE(WORKERS) 111
