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// 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.
void CheckForUpdate(const StatusCallback& status_callback,
const PromoteCallback& promote_callback) override;
void PromoteUpdater() const override;
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();
~VersionUpdaterMac() override;
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_
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