chrome/browser/upgrade_detector.h

   1 // Copyright (c) 2011 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_UPGRADE_DETECTOR_H_
   6 #define CHROME_BROWSER_UPGRADE_DETECTOR_H_
   7
   8 #include "base/timer/timer.h"
   9 #include "chrome/browser/chrome_notification_types.h"
  10 #include "ui/base/idle/idle.h"
  11 #include "ui/gfx/image/image.h"
  12
  13 class PrefRegistrySimple;
  14
  15 ///////////////////////////////////////////////////////////////////////////////
  16 // UpgradeDetector
  17 //
  18 // This class is a singleton class that monitors when an upgrade happens in the
  19 // background. We basically ask Omaha what it thinks the latest version is and
  20 // if our version is lower we send out a notification upon:
  21 //   a) Detecting an upgrade and...
  22 //   b) When we think the user should be notified about the upgrade.
  23 // The latter happens much later, since we don't want to be too annoying.
  24 //
  25 class UpgradeDetector {
  26  public:
  27   // The Homeland Security Upgrade Advisory System.
  28   enum UpgradeNotificationAnnoyanceLevel {
  29     UPGRADE_ANNOYANCE_NONE = 0,  // What? Me worry?
  30     UPGRADE_ANNOYANCE_LOW,       // Green.
  31     UPGRADE_ANNOYANCE_ELEVATED,  // Yellow.
  32     UPGRADE_ANNOYANCE_HIGH,      // Red.
  33     UPGRADE_ANNOYANCE_SEVERE,    // Orange.
  34     UPGRADE_ANNOYANCE_CRITICAL,  // Red exclamation mark.
  35   };
  36
  37   // Returns the singleton implementation instance.
  38   static UpgradeDetector* GetInstance();
  39
  40   virtual ~UpgradeDetector();
  41
  42   static void RegisterPrefs(PrefRegistrySimple* registry);
  43
  44   // Whether the user should be notified about an upgrade.
  45   bool notify_upgrade() const { return notify_upgrade_; }
  46
  47   // Whether the upgrade recommendation is due to Chrome being outdated.
  48   bool is_outdated_install() const {
  49     return upgrade_available_ == UPGRADE_NEEDED_OUTDATED_INSTALL;
  50   }
  51
  52   // Whether the upgrade recommendation is due to Chrome being outdated AND
  53   // auto-update is turned off.
  54   bool is_outdated_install_no_au() const {
  55     return upgrade_available_ == UPGRADE_NEEDED_OUTDATED_INSTALL_NO_AU;
  56   }
  57
  58   // Notifify this object that the user has acknowledged the critical update
  59   // so we don't need to complain about it for now.
  60   void acknowledge_critical_update() {
  61     critical_update_acknowledged_ = true;
  62   }
  63
  64   // Whether the user has acknowledged the critical update.
  65   bool critical_update_acknowledged() const {
  66     return critical_update_acknowledged_;
  67   }
  68
  69   bool is_factory_reset_required() const { return is_factory_reset_required_; }
  70
  71   // Retrieves the right icon ID based on the degree of severity (see
  72   // UpgradeNotificationAnnoyanceLevel, each level has an an accompanying icon
  73   // to go with it) to display within the wrench menu.
  74   int GetIconResourceID();
  75
  76   UpgradeNotificationAnnoyanceLevel upgrade_notification_stage() const {
  77     return upgrade_notification_stage_;
  78   }
  79
  80  protected:
  81   enum UpgradeAvailable {
  82     // If no update is available and current install is recent enough.
  83     UPGRADE_AVAILABLE_NONE,
  84     // If a regular update is available.
  85     UPGRADE_AVAILABLE_REGULAR,
  86     // If a critical update to Chrome has been installed, such as a zero-day
  87     // fix.
  88     UPGRADE_AVAILABLE_CRITICAL,
  89     // If no update to Chrome has been installed for more than the recommended
  90     // time.
  91     UPGRADE_NEEDED_OUTDATED_INSTALL,
  92     // If no update to Chrome has been installed for more than the recommended
  93     // time AND auto-update is turned off.
  94     UPGRADE_NEEDED_OUTDATED_INSTALL_NO_AU,
  95   };
  96
  97   UpgradeDetector();
  98
  99   // Sends out UPGRADE_RECOMMENDED notification and set notify_upgrade_.
 100   void NotifyUpgradeRecommended();
 101
 102   // Triggers a critical update, which starts a timer that checks the machine
 103   // idle state. Protected and virtual so that it could be overridden by tests.
 104   virtual void TriggerCriticalUpdate();
 105
 106   UpgradeAvailable upgrade_available() const { return upgrade_available_; }
 107   void set_upgrade_available(UpgradeAvailable available) {
 108     upgrade_available_ = available;
 109   }
 110
 111   void set_best_effort_experiment_updates_available(bool available) {
 112     best_effort_experiment_updates_available_ = available;
 113   }
 114
 115   bool critical_experiment_updates_available() const {
 116     return critical_experiment_updates_available_;
 117   }
 118   void set_critical_experiment_updates_available(bool available) {
 119     critical_experiment_updates_available_ = available;
 120   }
 121
 122   void set_critical_update_acknowledged(bool acknowledged) {
 123     critical_update_acknowledged_ = acknowledged;
 124   }
 125
 126   void set_upgrade_notification_stage(UpgradeNotificationAnnoyanceLevel stage) {
 127     upgrade_notification_stage_ = stage;
 128   }
 129
 130   void set_is_factory_reset_required(bool is_factory_reset_required) {
 131     is_factory_reset_required_ = is_factory_reset_required;
 132   }
 133
 134  private:
 135   // Initiates an Idle check. See IdleCallback below.
 136   void CheckIdle();
 137
 138   // The callback for the IdleCheck. Tells us whether Chrome has received any
 139   // input events since the specified time.
 140   void IdleCallback(ui::IdleState state);
 141
 142   // Triggers a global notification of the specified |type|.
 143   void TriggerNotification(chrome::NotificationType type);
 144
 145   // Whether any software updates are available (experiment updates are tracked
 146   // separately via additional member variables below).
 147   UpgradeAvailable upgrade_available_;
 148
 149   // Whether "best effort" experiment updates are available.
 150   bool best_effort_experiment_updates_available_;
 151
 152   // Whether "critical" experiment updates are available.
 153   bool critical_experiment_updates_available_;
 154
 155   // Whether the user has acknowledged the critical update.
 156   bool critical_update_acknowledged_;
 157
 158   // Whether a factory reset is needed to complete an update.
 159   bool is_factory_reset_required_;
 160
 161   // A timer to check to see if we've been idle for long enough to show the
 162   // critical warning. Should only be set if |upgrade_available_| is
 163   // UPGRADE_AVAILABLE_CRITICAL.
 164   base::RepeatingTimer<UpgradeDetector> idle_check_timer_;
 165
 166   // The stage at which the annoyance level for upgrade notifications is at.
 167   UpgradeNotificationAnnoyanceLevel upgrade_notification_stage_;
 168
 169   // Whether we have waited long enough after detecting an upgrade (to see
 170   // is we should start nagging about upgrading).
 171   bool notify_upgrade_;
 172
 173   DISALLOW_COPY_AND_ASSIGN(UpgradeDetector);
 174 };
 175
 176 #endif  // CHROME_BROWSER_UPGRADE_DETECTOR_H_