chromium/src/third_party/blink/renderer/core/exported/web_dom_message_event.cc

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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#include "third_party/blink/public/web/web_dom_message_event.h"

#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_frame.h"
#include "third_party/blink/public/web/web_serialized_script_value.h"
#include "third_party/blink/renderer/bindings/core/v8/serialization/serialized_script_value.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/events/message_event.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/user_activation.h"
#include "third_party/blink/renderer/core/messaging/blink_transferable_message.h"
#include "third_party/blink/renderer/core/messaging/message_port.h"

namespace blink {

WebDOMMessageEvent::WebDOMMessageEvent(
    const WebSerializedScriptValue& message_data,
    const WebString& origin,
    const WebFrame* source_frame,
    const WebDocument& target_document,
    WebVector<MessagePortChannel> channels)
    : WebDOMMessageEvent(MessageEvent::Create(), base::nullopt) {
  DOMWindow* window = nullptr;
  if (source_frame)
    window = WebFrame::ToCoreFrame(*source_frame)->DomWindow();
  MessagePortArray* ports = nullptr;
  if (!target_document.IsNull()) {
    Document* core_document = target_document;
    ports = MessagePort::EntanglePorts(*core_document->GetExecutionContext(),
                                       std::move(channels));
  }
  // TODO(esprehn): Chromium always passes empty string for lastEventId, is that
  // right?
  Unwrap<MessageEvent>()->initMessageEvent(
      "message", false, false, message_data, origin, "" /*lastEventId*/, window,
      ports, nullptr /*user_activation*/, false);
}

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

}  // namespace blink