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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/browser/chromeos/low_battery_observer.h" | 5 #include "chrome/browser/chromeos/low_battery_observer.h" |
| 6 | 6 |
| 7 #include "base/utf_string_conversions.h" | 7 #include "base/utf_string_conversions.h" |
| 8 #include "chrome/common/time_format.h" | 8 #include "chrome/common/time_format.h" |
| 9 #include "grit/generated_resources.h" | 9 #include "grit/generated_resources.h" |
| 10 #include "grit/theme_resources.h" | 10 #include "grit/theme_resources.h" |
| 11 #include "ui/base/l10n/l10n_util.h" | 11 #include "ui/base/l10n/l10n_util.h" |
| 12 | 12 |
| 13 namespace chromeos { | 13 namespace chromeos { |
| 14 | 14 |
| 15 LowBatteryObserver::LowBatteryObserver(Profile* profile) | 15 LowBatteryObserver::LowBatteryObserver(Profile* profile) |
| 16 : notification_(profile, "battery.chromeos", | 16 : notification_(profile, "battery.chromeos", |
| 17 IDR_NOTIFICATION_LOW_BATTERY, | 17 IDR_NOTIFICATION_LOW_BATTERY, |
| 18 l10n_util::GetStringUTF16(IDS_LOW_BATTERY_TITLE)), | 18 l10n_util::GetStringUTF16(IDS_LOW_BATTERY_TITLE)), |
| 19 remaining_(0) {} | 19 remaining_(0) {} |
| 20 | 20 |
| 21 LowBatteryObserver::~LowBatteryObserver() { | 21 LowBatteryObserver::~LowBatteryObserver() { |
| 22 Hide(); | 22 Hide(); |
| 23 } | 23 } |
| 24 | 24 |
| 25 void LowBatteryObserver::PowerChanged(PowerLibrary* object) { | 25 void LowBatteryObserver::PowerChanged(PowerLibrary* power_lib) { |
| 26 const int limit_min = 15; // Notification will show when remaining number | 26 const int limit_min = 15; // Notification will show when remaining number |
| 27 // of minutes is <= limit. | 27 // of minutes is <= limit. |
| 28 const int limit_max = 30; // Notification will hid when remaining number | 28 const int limit_max = 30; // Notification will hid when remaining number |
| 29 // of minutes is > limit_max. | 29 // of minutes is > limit_max. |
| 30 const int critical = 5; // Notification will be forced visible if hidden | 30 const int critical = 5; // Notification will be forced visible if hidden |
| 31 // by user when time remaining <= critical. | 31 // by user when time remaining <= critical. |
| 32 | 32 |
| 33 base::TimeDelta remaining = object->battery_time_to_empty(); | 33 base::TimeDelta remaining = power_lib->GetBatteryTimeToEmpty(); |
| 34 int remaining_minutes = remaining.InMinutes(); | 34 int remaining_minutes = remaining.InMinutes(); |
| 35 | 35 |
| 36 // To simplify the logic - we handle the case of calculating the remaining | 36 // To simplify the logic - we handle the case of calculating the remaining |
| 37 // time as if we were on line power. | 37 // time as if we were on line power. |
| 38 // remaining time of zero means still calculating, this is denoted by | 38 // remaining time of zero means still calculating, this is denoted by |
| 39 // base::TimeDelta(). | 39 // base::TimeDelta(). |
| 40 bool line_power = object->line_power_on() || remaining == base::TimeDelta(); | 40 bool line_power = power_lib->IsLinePowerOn() || |
| 41 remaining == base::TimeDelta(); |
| 41 | 42 |
| 42 // The urgent flag is used to re-notify the user if the power level | 43 // The urgent flag is used to re-notify the user if the power level |
| 43 // goes critical. We only want to do this once even if the time remaining | 44 // goes critical. We only want to do this once even if the time remaining |
| 44 // goes back up (so long as it doesn't go above limit_max. | 45 // goes back up (so long as it doesn't go above limit_max. |
| 45 bool urgent = !line_power && | 46 bool urgent = !line_power && |
| 46 (notification_.urgent() || remaining_minutes <= critical); | 47 (notification_.urgent() || remaining_minutes <= critical); |
| 47 | 48 |
| 48 // This is a simple state machine with two states and three edges: | 49 // This is a simple state machine with two states and three edges: |
| 49 // States: visible_, !visible_ | 50 // States: visible_, !visible_ |
| 50 // Edges: hide: is visible_ to !visible_ triggered if we transition | 51 // Edges: hide: is visible_ to !visible_ triggered if we transition |
| (...skipping 23 matching lines...) Expand all Loading... |
| 74 notification_.Show(l10n_util::GetStringFUTF16(IDS_LOW_BATTERY_MESSAGE, | 75 notification_.Show(l10n_util::GetStringFUTF16(IDS_LOW_BATTERY_MESSAGE, |
| 75 TimeFormat::TimeRemaining(remaining)), urgent, true); | 76 TimeFormat::TimeRemaining(remaining)), urgent, true); |
| 76 remaining_ = remaining.InMinutes(); | 77 remaining_ = remaining.InMinutes(); |
| 77 } | 78 } |
| 78 | 79 |
| 79 void LowBatteryObserver::Hide() { | 80 void LowBatteryObserver::Hide() { |
| 80 notification_.Hide(); | 81 notification_.Hide(); |
| 81 } | 82 } |
| 82 | 83 |
| 83 } // namespace chromeos | 84 } // namespace chromeos |
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