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#include "JSMessageEvent.h" 33 34#include "JSBlob.h" 35#include "JSDOMBinding.h" 36#include "JSDOMWindow.h" 37#include "JSEventTarget.h" 38#include "JSMessagePortCustom.h" 39#include "MessageEvent.h" 40#include <runtime/JSArray.h> 41#include <runtime/JSArrayBuffer.h> 42 43using namespace JSC; 44 45namespace WebCore { 46 47JSValue JSMessageEvent::data(ExecState* exec) const 48{ 49 if (JSValue cachedValue = m_data.get()) 50 return cachedValue; 51 52 MessageEvent& event = impl(); 53 JSValue result; 54 switch (event.dataType()) { 55 case MessageEvent::DataTypeScriptValue: { 56 Deprecated::ScriptValue scriptValue = event.dataAsScriptValue(); 57 if (scriptValue.hasNoValue()) 58 result = jsNull(); 59 else 60 result = scriptValue.jsValue(); 61 break; 62 } 63 64 case MessageEvent::DataTypeSerializedScriptValue: 65 if (RefPtr<SerializedScriptValue> serializedValue = event.dataAsSerializedScriptValue()) { 66 MessagePortArray ports = impl().ports(); 67 // FIXME: Why does this suppress exceptions? 68 result = serializedValue->deserialize(exec, globalObject(), &ports, NonThrowing); 69 } else 70 result = jsNull(); 71 break; 72 73 case MessageEvent::DataTypeString: 74 result = jsStringWithCache(exec, event.dataAsString()); 75 break; 76 77 case MessageEvent::DataTypeBlob: 78 result = toJS(exec, globalObject(), event.dataAsBlob()); 79 break; 80 81 case MessageEvent::DataTypeArrayBuffer: 82 result = toJS(exec, globalObject(), event.dataAsArrayBuffer()); 83 break; 84 } 85 86 // Save the result so we don't have to deserialize the value again. 87 const_cast<JSMessageEvent*>(this)->m_data.set(exec->vm(), this, result); 88 return result; 89} 90 91static JSC::JSValue handleInitMessageEvent(JSMessageEvent* jsEvent, JSC::ExecState* exec) 92{ 93 const String& typeArg = exec->argument(0).toString(exec)->value(exec); 94 bool canBubbleArg = exec->argument(1).toBoolean(exec); 95 bool cancelableArg = exec->argument(2).toBoolean(exec); 96 const String originArg = exec->argument(4).toString(exec)->value(exec); 97 const String lastEventIdArg = exec->argument(5).toString(exec)->value(exec); 98 DOMWindow* sourceArg = toDOMWindow(exec->argument(6)); 99 std::unique_ptr<MessagePortArray> messagePorts; 100 OwnPtr<ArrayBufferArray> arrayBuffers; 101 if (!exec->argument(7).isUndefinedOrNull()) { 102 messagePorts = std::make_unique<MessagePortArray>(); 103 arrayBuffers = adoptPtr(new ArrayBufferArray); 104 fillMessagePortArray(exec, exec->argument(7), *messagePorts, *arrayBuffers); 105 if (exec->hadException()) 106 return jsUndefined(); 107 } 108 Deprecated::ScriptValue dataArg = Deprecated::ScriptValue(exec->vm(), exec->argument(3)); 109 if (exec->hadException()) 110 return jsUndefined(); 111 112 MessageEvent& event = jsEvent->impl(); 113 event.initMessageEvent(typeArg, canBubbleArg, cancelableArg, dataArg, originArg, lastEventIdArg, sourceArg, WTF::move(messagePorts)); 114 jsEvent->m_data.set(exec->vm(), jsEvent, dataArg.jsValue()); 115 return jsUndefined(); 116} 117 118JSC::JSValue JSMessageEvent::initMessageEvent(JSC::ExecState* exec) 119{ 120 return handleInitMessageEvent(this, exec); 121} 122 123JSC::JSValue JSMessageEvent::webkitInitMessageEvent(JSC::ExecState* exec) 124{ 125 return handleInitMessageEvent(this, exec); 126} 127 128} // namespace WebCore 129