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      1 /*
      2  * Copyright (C) 2011 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 "WebDOMMessageEvent.h"
     33 
     34 #include "WebFrame.h"
     35 #include "WebFrameImpl.h"
     36 #include "WebSerializedScriptValue.h"
     37 #include "bindings/v8/SerializedScriptValue.h"
     38 #include "core/dom/Document.h"
     39 #include "core/events/MessageEvent.h"
     40 #include "core/dom/MessagePort.h"
     41 #include "core/frame/DOMWindow.h"
     42 #include "public/platform/WebString.h"
     43 
     44 using namespace WebCore;
     45 
     46 namespace blink {
     47 
     48 void WebDOMMessageEvent::initMessageEvent(const WebString& type, bool canBubble, bool cancelable, const WebSerializedScriptValue& messageData, const WebString& origin, const WebFrame* sourceFrame, const WebString& lastEventId, const WebMessagePortChannelArray& webChannels)
     49 {
     50     ASSERT(m_private.get());
     51     ASSERT(isMessageEvent());
     52     DOMWindow* window = 0;
     53     if (sourceFrame)
     54         window = toWebFrameImpl(sourceFrame)->frame()->domWindow();
     55     OwnPtr<MessagePortArray> ports;
     56     if (!webChannels.isEmpty() && sourceFrame) {
     57         OwnPtr<MessagePortChannelArray> channels = adoptPtr(new MessagePortChannelArray(webChannels.size()));
     58         for (size_t i = 0; i < webChannels.size(); ++i)
     59             (*channels)[i] = adoptPtr(webChannels[i]);
     60         ports = MessagePort::entanglePorts(*window->document(), channels.release());
     61     }
     62     unwrap<MessageEvent>()->initMessageEvent(type, canBubble, cancelable, messageData, origin, lastEventId, window, ports.release());
     63 }
     64 
     65 WebSerializedScriptValue WebDOMMessageEvent::data() const
     66 {
     67     return WebSerializedScriptValue(constUnwrap<MessageEvent>()->dataAsSerializedScriptValue());
     68 }
     69 
     70 WebString WebDOMMessageEvent::origin() const
     71 {
     72     return WebString(constUnwrap<MessageEvent>()->origin());
     73 }
     74 
     75 WebMessagePortChannelArray WebDOMMessageEvent::releaseChannels()
     76 {
     77     MessagePortChannelArray* channels = constUnwrap<MessageEvent>()->channels();
     78     WebMessagePortChannelArray webChannels(channels ? channels->size() : 0);
     79     if (channels) {
     80         for (size_t i = 0; i < channels->size(); ++i)
     81             webChannels[i] = (*channels)[i].leakPtr();
     82     }
     83     return webChannels;
     84 }
     85 
     86 } // namespace blink
     87