third_party/WebKit/Source/web/WebDOMMessageEvent.cpp

   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,
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  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 "public/web/WebDOMMessageEvent.h"
  33
  34 #include "bindings/core/v8/SerializedScriptValue.h"
  35 #include "core/dom/Document.h"
  36 #include "core/dom/MessagePort.h"
  37 #include "core/events/MessageEvent.h"
  38 #include "core/frame/LocalDOMWindow.h"
  39 #include "public/platform/WebString.h"
  40 #include "public/web/WebDocument.h"
  41 #include "public/web/WebFrame.h"
  42 #include "public/web/WebSerializedScriptValue.h"
  43 #include "web/WebLocalFrameImpl.h"
  44
  45 namespace blink {
  46
  47 void WebDOMMessageEvent::initMessageEvent(const WebString& type, bool canBubble, bool cancelable, const WebSerializedScriptValue& messageData, const WebString& origin, const WebFrame* sourceFrame, const WebDocument& targetDocument, const WebString& lastEventId, const WebMessagePortChannelArray& webChannels)
  48 {
  49     ASSERT(m_private.get());
  50     ASSERT(isMessageEvent());
  51     DOMWindow* window = nullptr;
  52     if (sourceFrame)
  53         window = toCoreFrame(sourceFrame)->domWindow();
  54     MessagePortArray* ports = nullptr;
  55     if (!targetDocument.isNull()) {
  56         RefPtrWillBeRawPtr<Document> coreDocument = PassRefPtrWillBeRawPtr<Document>(targetDocument);
  57         ports = MessagePort::toMessagePortArray(coreDocument.get(), webChannels);
  58     }
  59     // Use an empty array for |ports| when it is null because this function
  60     // is used to implement postMessage().
  61     if (!ports)
  62         ports = new MessagePortArray;
  63     unwrap<MessageEvent>()->initMessageEvent(type, canBubble, cancelable, messageData, origin, lastEventId, window, ports);
  64 }
  65
  66 WebSerializedScriptValue WebDOMMessageEvent::data() const
  67 {
  68     return WebSerializedScriptValue(constUnwrap<MessageEvent>()->dataAsSerializedScriptValue());
  69 }
  70
  71 WebString WebDOMMessageEvent::origin() const
  72 {
  73     return WebString(constUnwrap<MessageEvent>()->origin());
  74 }
  75
  76 WebMessagePortChannelArray WebDOMMessageEvent::releaseChannels()
  77 {
  78     MessagePortChannelArray* channels = constUnwrap<MessageEvent>()->channels();
  79     WebMessagePortChannelArray webChannels(channels ? channels->size() : 0);
  80     if (channels) {
  81         for (size_t i = 0; i < channels->size(); ++i)
  82             webChannels[i] = (*channels)[i].leakPtr();
  83     }
  84     return webChannels;
  85 }
  86
  87 } // namespace blink