chrome/browser/ui/webui/version_handler_chromeos.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_
   6 #define CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_
   7
   8 #include <string>
   9
  10 #include "chrome/browser/chromeos/version_loader.h"
  11 #include "chrome/browser/ui/webui/version_handler.h"
  12
  13 // VersionHandlerChromeOS is responsible for loading the Chrome OS
  14 // version.
  15 class VersionHandlerChromeOS : public VersionHandler {
  16  public:
  17   VersionHandlerChromeOS();
  18   virtual ~VersionHandlerChromeOS();
  19
  20   // VersionHandler overrides:
  21   virtual void HandleRequestVersionInfo(const base::ListValue* args) OVERRIDE;
  22
  23   // Callback from chromeos::VersionLoader giving the version.
  24   void OnVersion(const std::string& version);
  25
  26  private:
  27   // Handles asynchronously loading the version.
  28   chromeos::VersionLoader loader_;
  29
  30   // Used to request the version.
  31   base::CancelableTaskTracker tracker_;
  32
  33   DISALLOW_COPY_AND_ASSIGN(VersionHandlerChromeOS);
  34 };
  35
  36 #endif  // CHROME_BROWSER_UI_WEBUI_VERSION_HANDLER_CHROMEOS_H_