Source/web/WebDOMMessageEvent.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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#include "config.h"
#include "public/web/WebDOMMessageEvent.h"

#include "bindings/core/v8/SerializedScriptValue.h"
#include "core/dom/Document.h"
#include "core/dom/MessagePort.h"
#include "core/events/MessageEvent.h"
#include "core/frame/LocalDOMWindow.h"
#include "public/platform/WebString.h"
#include "public/web/WebDocument.h"
#include "public/web/WebFrame.h"
#include "public/web/WebSerializedScriptValue.h"
#include "web/WebLocalFrameImpl.h"

namespace blink {

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)
{
    ASSERT(m_private.get());
    ASSERT(isMessageEvent());
    DOMWindow* window = nullptr;
    if (sourceFrame)
        window = toCoreFrame(sourceFrame)->domWindow();
    MessagePortArray* ports = nullptr;
    if (!targetDocument.isNull()) {
        RefPtrWillBeRawPtr<Document> coreDocument = PassRefPtrWillBeRawPtr<Document>(targetDocument);
        ports = MessagePort::toMessagePortArray(coreDocument.get(), webChannels);
    }
    // Use an empty array for |ports| when it is null because this function
    // is used to implement postMessage().
    if (!ports)
        ports = new MessagePortArray;
    unwrap<MessageEvent>()->initMessageEvent(type, canBubble, cancelable, messageData, origin, lastEventId, window, ports);
}

WebSerializedScriptValue WebDOMMessageEvent::data() const
{
    return WebSerializedScriptValue(constUnwrap<MessageEvent>()->dataAsSerializedScriptValue());
}

WebString WebDOMMessageEvent::origin() const
{
    return WebString(constUnwrap<MessageEvent>()->origin());
}

WebMessagePortChannelArray WebDOMMessageEvent::releaseChannels()
{
    MessagePortChannelArray* channels = constUnwrap<MessageEvent>()->channels();
    WebMessagePortChannelArray webChannels(channels ? channels->size() : 0);
    if (channels) {
        for (size_t i = 0; i < channels->size(); ++i)
            webChannels[i] = (*channels)[i].leakPtr();
    }
    return webChannels;
}

} // namespace blink