/*
 * Copyright (C) 2011 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 "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 {

WebDOMMessageEvent::WebDOMMessageEvent(
    const WebSerializedScriptValue& messageData,
    const WebString& origin,
    const WebFrame* sourceFrame,
    const WebDocument& targetDocument,
    const WebMessagePortChannelArray& channels)
    : WebDOMMessageEvent(MessageEvent::create()) {
  DOMWindow* window = nullptr;
  if (sourceFrame)
    window = sourceFrame->toImplBase()->frame()->domWindow();
  MessagePortArray* ports = nullptr;
  if (!targetDocument.isNull()) {
    Document* coreDocument = targetDocument;
    ports = MessagePort::toMessagePortArray(coreDocument, channels);
  }
  // Use an empty array for |ports| when it is null because this function
  // is used to implement postMessage().
  if (!ports)
    ports = new MessagePortArray;
  // TODO(esprehn): Chromium always passes empty string for lastEventId, is that
  // right?
  unwrap<MessageEvent>()->initMessageEvent("message", false, false, 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].release();
  }
  return webChannels;
}

}  // namespace blink