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
markChildren(MarkStack & markStack)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
constructJSMessageChannel(ExecState * exec)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