1 /* 2 * Copyright (C) 2008, 2009 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "JSMessageChannel.h" 28 29 #include "MessageChannel.h" 30 #include <runtime/Error.h> 31 32 using namespace JSC; 33 34 namespace WebCore { 35 36 void JSMessageChannel::markChildren(MarkStack& markStack) 37 { 38 Base::markChildren(markStack); 39 40 if (MessagePort* port = m_impl->port1()) 41 markDOMObjectWrapper(markStack, *Heap::heap(this)->globalData(), port); 42 43 if (MessagePort* port = m_impl->port2()) 44 markDOMObjectWrapper(markStack, *Heap::heap(this)->globalData(), port); 45 } 46 47 EncodedJSValue JSC_HOST_CALL JSMessageChannelConstructor::constructJSMessageChannel(ExecState* exec) 48 { 49 JSMessageChannelConstructor* jsConstructor = static_cast<JSMessageChannelConstructor*>(exec->callee()); 50 ScriptExecutionContext* context = jsConstructor->scriptExecutionContext(); 51 if (!context) 52 return throwVMError(exec, createReferenceError(exec, "MessageChannel constructor associated document is unavailable")); 53 54 return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), MessageChannel::create(context)))); 55 } 56 57 } // namespace WebCore 58
