| // Copyright (c) 2012 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 CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_MAC_H_ |
| #define CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_MAC_H_ |
| |
| #import <AppKit/AppKit.h> |
| |
| #include "base/compiler_specific.h" |
| #include "base/mac/scoped_nsobject.h" |
| #include "chrome/browser/ui/webui/help/version_updater.h" |
| |
| @class KeystoneObserver; |
| |
| // OS X implementation of version update functionality, used by the WebUI |
| // About/Help page. |
| class VersionUpdaterMac : public VersionUpdater { |
| public: |
| // VersionUpdater implementation. |
| virtual void CheckForUpdate(const StatusCallback& status_callback, |
| const PromoteCallback& promote_callback) OVERRIDE; |
| virtual void PromoteUpdater() const OVERRIDE; |
| virtual void RelaunchBrowser() const OVERRIDE; |
| |
| // Process status updates received from Keystone. The dictionary will contain |
| // an AutoupdateStatus value as an intValue at key kAutoupdateStatusStatus. If |
| // a version is available (see AutoupdateStatus), it will be present at key |
| // kAutoupdateStatusVersion. |
| void UpdateStatus(NSDictionary* status); |
| |
| protected: |
| friend class VersionUpdater; |
| |
| // Clients must use VersionUpdater::Create(). |
| VersionUpdaterMac(); |
| virtual ~VersionUpdaterMac(); |
| |
| private: |
| // Update the visibility state of promote button. |
| void UpdateShowPromoteButton(); |
| |
| // Callback used to communicate update status to the client. |
| StatusCallback status_callback_; |
| |
| // Callback used to show or hide the promote UI elements. |
| PromoteCallback promote_callback_; |
| |
| // The visible state of the promote button. |
| bool show_promote_button_; |
| |
| // The observer that will receive keystone status updates. |
| base::scoped_nsobject<KeystoneObserver> keystone_observer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VersionUpdaterMac); |
| }; |
| |
| #endif // CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_MAC_H_ |
| |