/platform/external/webkit/WebCore/bindings/js/JSMessagePortCustom.cpp
https://github.com/aharish/totoro-gb-opensource-update2 · C++ · 116 lines · 69 code · 17 blank · 30 comment · 9 complexity · b89e0908d28349fce5f2880138f2d41a MD5 · raw file
- /*
- * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #include "config.h"
- #include "JSMessagePort.h"
- #include "AtomicString.h"
- #include "Event.h"
- #include "ExceptionCode.h"
- #include "Frame.h"
- #include "JSDOMGlobalObject.h"
- #include "JSEvent.h"
- #include "JSEventListener.h"
- #include "JSMessagePortCustom.h"
- #include "MessagePort.h"
- #include <runtime/Error.h>
- using namespace JSC;
- namespace WebCore {
- void JSMessagePort::markChildren(MarkStack& markStack)
- {
- Base::markChildren(markStack);
- // If we have a locally entangled port, we can directly mark it as reachable. Ports that are remotely entangled are marked in-use by markActiveObjectsForContext().
- if (MessagePort* entangledPort = m_impl->locallyEntangledPort())
- markDOMObjectWrapper(markStack, *Heap::heap(this)->globalData(), entangledPort);
- m_impl->markJSEventListeners(markStack);
- }
- JSValue JSMessagePort::addEventListener(ExecState* exec, const ArgList& args)
- {
- JSValue listener = args.at(1);
- if (!listener.isObject())
- return jsUndefined();
- impl()->addEventListener(args.at(0).toString(exec), JSEventListener::create(asObject(listener), this, false, currentWorld(exec)).get(), args.at(2).toBoolean(exec));
- return jsUndefined();
- }
- JSValue JSMessagePort::removeEventListener(ExecState* exec, const ArgList& args)
- {
- JSValue listener = args.at(1);
- if (!listener.isObject())
- return jsUndefined();
- impl()->removeEventListener(args.at(0).toString(exec), JSEventListener::create(asObject(listener), this, false, currentWorld(exec)).get(), args.at(2).toBoolean(exec));
- return jsUndefined();
- }
- JSC::JSValue JSMessagePort::postMessage(JSC::ExecState* exec, const JSC::ArgList& args)
- {
- return handlePostMessage(exec, args, impl());
- }
- void fillMessagePortArray(JSC::ExecState* exec, JSC::JSValue value, MessagePortArray& portArray)
- {
- // Convert from the passed-in JS array-like object to a MessagePortArray.
- // Also validates the elements per sections 4.1.13 and 4.1.15 of the WebIDL spec and section 8.3.3 of the HTML5 spec.
- if (value.isUndefinedOrNull()) {
- portArray.resize(0);
- return;
- }
- // Validation of sequence types, per WebIDL spec 4.1.13.
- unsigned length;
- JSObject* object = toJSSequence(exec, value, length);
- if (exec->hadException())
- return;
- portArray.resize(length);
- for (unsigned i = 0 ; i < length; ++i) {
- JSValue value = object->get(exec, i);
- if (exec->hadException())
- return;
- // Validation of non-null objects, per HTML5 spec 8.3.3.
- if (value.isUndefinedOrNull()) {
- setDOMException(exec, INVALID_STATE_ERR);
- return;
- }
- // Validation of Objects implementing an interface, per WebIDL spec 4.1.15.
- RefPtr<MessagePort> port = toMessagePort(value);
- if (!port) {
- throwError(exec, TypeError);
- return;
- }
- portArray[i] = port.release();
- }
- }
- } // namespace WebCore