| /* |
| * Copyright (C) 2009 Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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 "V8MessageChannel.h" |
| |
| #include "Document.h" |
| #include "Frame.h" |
| #include "MessageChannel.h" |
| #include "V8Binding.h" |
| #include "V8MessagePort.h" |
| #include "V8Proxy.h" |
| #include "V8Utilities.h" |
| #include "WorkerContext.h" |
| #include "WorkerContextExecutionProxy.h" |
| |
| #include <wtf/RefPtr.h> |
| |
| namespace WebCore { |
| |
| v8::Handle<v8::Value> V8MessageChannel::constructorCallback(const v8::Arguments& args) |
| { |
| INC_STATS("DOM.MessageChannel.Constructor"); |
| // FIXME: The logic here is almost exact duplicate of V8::constructDOMObject. |
| // Consider refactoring to reduce duplication. |
| if (!args.IsConstructCall()) |
| return throwError("DOM object constructor cannot be called as a function."); |
| |
| // Get the ScriptExecutionContext (WorkerContext or Document) |
| ScriptExecutionContext* context = getScriptExecutionContext(); |
| if (!context) |
| return v8::Undefined(); |
| |
| // Note: it's OK to let this RefPtr go out of scope because we also call |
| // SetDOMWrapper(), which effectively holds a reference to obj. |
| RefPtr<MessageChannel> obj = MessageChannel::create(context); |
| |
| v8::Local<v8::Object> messageChannel = args.Holder(); |
| |
| // Create references from the MessageChannel wrapper to the two |
| // MessagePort wrappers to make sure that the MessagePort wrappers |
| // stay alive as long as the MessageChannel wrapper is around. |
| messageChannel->SetInternalField(V8MessageChannel::port1Index, toV8(obj->port1())); |
| messageChannel->SetInternalField(V8MessageChannel::port2Index, toV8(obj->port2())); |
| |
| // Setup the standard wrapper object internal fields. |
| V8DOMWrapper::setDOMWrapper(messageChannel, V8ClassIndex::MESSAGECHANNEL, obj.get()); |
| return toV8(obj.release(), messageChannel); |
| } |
| |
| |
| } // namespace WebCore |