components/html_viewer/web_message_port_channel_impl.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_HTML_VIEWER_WEB_MESSAGE_PORT_CHANNEL_IMPL_H_
   6 #define COMPONENTS_HTML_VIEWER_WEB_MESSAGE_PORT_CHANNEL_IMPL_H_
   7
   8 #include "base/basictypes.h"
   9 #include "mojo/common/handle_watcher.h"
  10 #include "third_party/WebKit/public/platform/WebMessagePortChannel.h"
  11 #include "third_party/mojo/src/mojo/public/cpp/system/message_pipe.h"
  12
  13 namespace html_viewer {
  14
  15 class WebMessagePortChannelImpl : public blink::WebMessagePortChannel {
  16  public:
  17   static void CreatePair(
  18       blink::WebMessagePortChannel** channel1,
  19       blink::WebMessagePortChannel** channel2);
  20
  21  private:
  22   explicit WebMessagePortChannelImpl(mojo::ScopedMessagePipeHandle pipe);
  23   virtual ~WebMessagePortChannelImpl();
  24
  25   // blink::WebMessagePortChannel implementation.
  26   virtual void setClient(blink::WebMessagePortChannelClient* client);
  27   virtual void destroy();
  28   virtual void postMessage(const blink::WebString& message,
  29                            blink::WebMessagePortChannelArray* channels);
  30   virtual bool tryGetMessage(blink::WebString* message,
  31                              blink::WebMessagePortChannelArray& channels);
  32
  33   void WaitForNextMessage();
  34   void OnMessageAvailable(MojoResult result);
  35
  36   blink::WebMessagePortChannelClient* client_;
  37   mojo::ScopedMessagePipeHandle pipe_;
  38   mojo::common::HandleWatcher handle_watcher_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(WebMessagePortChannelImpl);
  41 };
  42
  43 }  // namespace html_viewer
  44
  45 #endif  // COMPONENTS_HTML_VIEWER_WEB_MESSAGE_PORT_CHANNEL_IMPL_H_