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 #include "chrome/browser/chromeos/status/power_menu_button.h" 6 7 #include "base/string_number_conversions.h" 8 #include "base/time.h" 9 #include "base/utf_string_conversions.h" 10 #include "chrome/browser/chromeos/cros/cros_library.h" 11 #include "grit/generated_resources.h" 12 #include "grit/theme_resources.h" 13 #include "ui/base/l10n/l10n_util.h" 14 #include "ui/base/resource/resource_bundle.h" 15 #include "ui/gfx/canvas.h" 16 17 namespace chromeos { 18 19 //////////////////////////////////////////////////////////////////////////////// 20 // PowerMenuButton 21 22 // static 23 const int PowerMenuButton::kNumPowerImages = 19; 24 25 PowerMenuButton::PowerMenuButton(StatusAreaHost* host) 26 : StatusAreaButton(host, this), 27 battery_is_present_(false), 28 line_power_on_(false), 29 battery_fully_charged_(false), 30 battery_percentage_(0.0), 31 icon_id_(-1), 32 ALLOW_THIS_IN_INITIALIZER_LIST(power_menu_(this)) { 33 UpdateIconAndLabelInfo(); 34 CrosLibrary::Get()->GetPowerLibrary()->AddObserver(this); 35 } 36 37 PowerMenuButton::~PowerMenuButton() { 38 CrosLibrary::Get()->GetPowerLibrary()->RemoveObserver(this); 39 } 40 41 //////////////////////////////////////////////////////////////////////////////// 42 // PowerMenuButton, ui::MenuModel implementation: 43 44 int PowerMenuButton::GetItemCount() const { 45 return 2; 46 } 47 48 ui::MenuModel::ItemType PowerMenuButton::GetTypeAt(int index) const { 49 return ui::MenuModel::TYPE_COMMAND; 50 } 51 52 string16 PowerMenuButton::GetLabelAt(int index) const { 53 // The first item shows the percentage of battery left. 54 if (index == 0) { 55 return l10n_util::GetStringFUTF16(IDS_STATUSBAR_BATTERY_PERCENTAGE, 56 base::IntToString16(static_cast<int>(battery_percentage_))); 57 } else if (index == 1) { 58 // The second item shows the battery is charged if it is. 59 if (battery_fully_charged_) 60 return l10n_util::GetStringUTF16(IDS_STATUSBAR_BATTERY_IS_CHARGED); 61 62 // If battery is in an intermediate charge state, show how much time left. 63 base::TimeDelta time = line_power_on_ ? battery_time_to_full_ : 64 battery_time_to_empty_; 65 if (time.InSeconds() == 0) { 66 // If time is 0, then that means we are still calculating how much time. 67 // Depending if line power is on, we either show a message saying that we 68 // are calculating time until full or calculating remaining time. 69 int msg = line_power_on_ ? 70 IDS_STATUSBAR_BATTERY_CALCULATING_TIME_UNTIL_FULL : 71 IDS_STATUSBAR_BATTERY_CALCULATING_TIME_UNTIL_EMPTY; 72 return l10n_util::GetStringUTF16(msg); 73 } else { 74 // Depending if line power is on, we either show a message saying XX:YY 75 // until full or XX:YY remaining where XX is number of hours and YY is 76 // number of minutes. 77 int msg = line_power_on_ ? IDS_STATUSBAR_BATTERY_TIME_UNTIL_FULL : 78 IDS_STATUSBAR_BATTERY_TIME_UNTIL_EMPTY; 79 int hour = time.InHours(); 80 int min = (time - base::TimeDelta::FromHours(hour)).InMinutes(); 81 string16 hour_str = base::IntToString16(hour); 82 string16 min_str = base::IntToString16(min); 83 // Append a "0" before the minute if it's only a single digit. 84 if (min < 10) 85 min_str = ASCIIToUTF16("0") + min_str; 86 return l10n_util::GetStringFUTF16(msg, hour_str, min_str); 87 } 88 } else { 89 NOTREACHED(); 90 return string16(); 91 } 92 } 93 94 //////////////////////////////////////////////////////////////////////////////// 95 // PowerMenuButton, views::View implementation: 96 void PowerMenuButton::OnLocaleChanged() { 97 UpdateIconAndLabelInfo(); 98 } 99 100 //////////////////////////////////////////////////////////////////////////////// 101 // PowerMenuButton, views::ViewMenuDelegate implementation: 102 103 void PowerMenuButton::RunMenu(views::View* source, const gfx::Point& pt) { 104 power_menu_.Rebuild(); 105 power_menu_.RunMenuAt(pt, views::Menu2::ALIGN_TOPRIGHT); 106 } 107 108 //////////////////////////////////////////////////////////////////////////////// 109 // PowerMenuButton, PowerLibrary::Observer implementation: 110 111 void PowerMenuButton::PowerChanged(PowerLibrary* obj) { 112 UpdateIconAndLabelInfo(); 113 } 114 115 //////////////////////////////////////////////////////////////////////////////// 116 // PowerMenuButton, StatusAreaButton implementation: 117 118 void PowerMenuButton::UpdateIconAndLabelInfo() { 119 PowerLibrary* cros = CrosLibrary::Get()->GetPowerLibrary(); 120 if (!cros) 121 return; 122 123 bool cros_loaded = CrosLibrary::Get()->EnsureLoaded(); 124 if (cros_loaded) { 125 battery_is_present_ = cros->battery_is_present(); 126 line_power_on_ = cros->line_power_on(); 127 battery_fully_charged_ = cros->battery_fully_charged(); 128 battery_percentage_ = cros->battery_percentage(); 129 // If fully charged, always show 100% even if internal number is a bit less. 130 // Note: we always call cros->battery_percentage() for test predictability. 131 if (battery_fully_charged_) 132 battery_percentage_ = 100.0; 133 battery_time_to_full_ = cros->battery_time_to_full(); 134 battery_time_to_empty_ = cros->battery_time_to_empty(); 135 } 136 137 if (!cros_loaded) { 138 icon_id_ = IDR_STATUSBAR_BATTERY_UNKNOWN; 139 } else if (!battery_is_present_) { 140 icon_id_ = IDR_STATUSBAR_BATTERY_MISSING; 141 } else if (line_power_on_ && battery_fully_charged_) { 142 icon_id_ = IDR_STATUSBAR_BATTERY_CHARGED; 143 } else { 144 // Get the power image depending on battery percentage. Percentage is 145 // from 0 to 100, so we need to convert that to 0 to kNumPowerImages - 1. 146 // NOTE: Use an array rather than just calculating a resource number to 147 // avoid creating implicit ordering dependencies on the resource values. 148 static const int kChargingImages[kNumPowerImages] = { 149 IDR_STATUSBAR_BATTERY_CHARGING_1, 150 IDR_STATUSBAR_BATTERY_CHARGING_2, 151 IDR_STATUSBAR_BATTERY_CHARGING_3, 152 IDR_STATUSBAR_BATTERY_CHARGING_4, 153 IDR_STATUSBAR_BATTERY_CHARGING_5, 154 IDR_STATUSBAR_BATTERY_CHARGING_6, 155 IDR_STATUSBAR_BATTERY_CHARGING_7, 156 IDR_STATUSBAR_BATTERY_CHARGING_8, 157 IDR_STATUSBAR_BATTERY_CHARGING_9, 158 IDR_STATUSBAR_BATTERY_CHARGING_10, 159 IDR_STATUSBAR_BATTERY_CHARGING_11, 160 IDR_STATUSBAR_BATTERY_CHARGING_12, 161 IDR_STATUSBAR_BATTERY_CHARGING_13, 162 IDR_STATUSBAR_BATTERY_CHARGING_14, 163 IDR_STATUSBAR_BATTERY_CHARGING_15, 164 IDR_STATUSBAR_BATTERY_CHARGING_16, 165 IDR_STATUSBAR_BATTERY_CHARGING_17, 166 IDR_STATUSBAR_BATTERY_CHARGING_18, 167 IDR_STATUSBAR_BATTERY_CHARGING_19, 168 }; 169 static const int kDischargingImages[kNumPowerImages] = { 170 IDR_STATUSBAR_BATTERY_DISCHARGING_1, 171 IDR_STATUSBAR_BATTERY_DISCHARGING_2, 172 IDR_STATUSBAR_BATTERY_DISCHARGING_3, 173 IDR_STATUSBAR_BATTERY_DISCHARGING_4, 174 IDR_STATUSBAR_BATTERY_DISCHARGING_5, 175 IDR_STATUSBAR_BATTERY_DISCHARGING_6, 176 IDR_STATUSBAR_BATTERY_DISCHARGING_7, 177 IDR_STATUSBAR_BATTERY_DISCHARGING_8, 178 IDR_STATUSBAR_BATTERY_DISCHARGING_9, 179 IDR_STATUSBAR_BATTERY_DISCHARGING_10, 180 IDR_STATUSBAR_BATTERY_DISCHARGING_11, 181 IDR_STATUSBAR_BATTERY_DISCHARGING_12, 182 IDR_STATUSBAR_BATTERY_DISCHARGING_13, 183 IDR_STATUSBAR_BATTERY_DISCHARGING_14, 184 IDR_STATUSBAR_BATTERY_DISCHARGING_15, 185 IDR_STATUSBAR_BATTERY_DISCHARGING_16, 186 IDR_STATUSBAR_BATTERY_DISCHARGING_17, 187 IDR_STATUSBAR_BATTERY_DISCHARGING_18, 188 IDR_STATUSBAR_BATTERY_DISCHARGING_19, 189 }; 190 191 int index = static_cast<int>(battery_percentage_ / 100.0 * 192 nextafter(static_cast<float>(kNumPowerImages), 0)); 193 index = std::max(std::min(index, kNumPowerImages - 1), 0); 194 icon_id_ = line_power_on_ ? 195 kChargingImages[index] : kDischargingImages[index]; 196 } 197 198 SetIcon(*ResourceBundle::GetSharedInstance().GetBitmapNamed(icon_id_)); 199 SetTooltipText(UTF16ToWide(GetLabelAt(0))); 200 power_menu_.Rebuild(); 201 SchedulePaint(); 202 } 203 204 } // namespace chromeos 205
