Remote assistance on Chrome OS Part V - It2MeHost Continue Window

remoting/host/chromeos/message_box.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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 "base/callback_helpers.h"
+#include "base/strings/string16.h"
+#include "base/threading/thread_checker.h"
+
+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.
+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::Callback<void(Result)> ResultCallback;
+
+  MessageBox(const base::string16& title_label,
+             const base::string16& message_label,
+             const base::string16& ok_label,
+             const base::string16& cancel_label,
+             ResultCallback result_callback);
+  ~MessageBox();
+
+  void Show();
+  void Hide();
+
+ private:
+  class Core;
+  Core* core_;
+  base::ThreadChecker thread_checker_;
+
+  DISALLOW_COPY_AND_ASSIGN(MessageBox);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_CHROMEOS_MESSAGE_BOX_H_