remoting/host/chromeos/message_box.h

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef REMOTING_HOST_CHROMEOS_MESSAGE_BOX_H_
#define REMOTING_HOST_CHROMEOS_MESSAGE_BOX_H_

#include <string>

#include "base/callback_helpers.h"
#include "base/threading/thread_checker.h"
#include "ui/base/ui_base_types.h"

namespace gfx {
class ImageSkia;
}  // namespace gfx

namespace remoting {

// Overview:
// Shows a system modal message box with OK and cancel buttons. This class
// is not thread-safe, it must be called on the UI thread of the browser
// process. Destroy the instance to hide the message box.
class MessageBox {
 public:
  enum Result { OK, CANCEL };

  // ResultCallback will be invoked with Result::Cancel if the user closes the
  // MessageBox without clicking on any buttons.
  typedef base::OnceCallback<void(Result)> ResultCallback;

  MessageBox(const std::u16string& title_label,
             const std::u16string& message_label,
             const std::u16string& ok_label,
             const std::u16string& cancel_label,
             ResultCallback result_callback);

  MessageBox(const MessageBox&) = delete;
  MessageBox& operator=(const MessageBox&) = delete;

  ~MessageBox();

  void Show();

 private:
  class Core;
  Core* core_;
  base::ThreadChecker thread_checker_;
};

}  // namespace remoting

#endif  // REMOTING_HOST_CHROMEOS_MESSAGE_BOX_H_