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// Copyright (c) 2009 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.
#include "chrome/browser/chromeos/status/power_menu_button.h"
#include "app/gfx/canvas.h"
#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "base/time.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
namespace chromeos {
////////////////////////////////////////////////////////////////////////////////
// PowerMenuButton
// static
const int PowerMenuButton::kNumPowerImages = 12;
PowerMenuButton::PowerMenuButton()
: StatusAreaButton(this),
ALLOW_THIS_IN_INITIALIZER_LIST(power_menu_(this)) {
UpdateIcon();
PowerLibrary::Get()->AddObserver(this);
}
PowerMenuButton::~PowerMenuButton() {
PowerLibrary::Get()->RemoveObserver(this);
}
////////////////////////////////////////////////////////////////////////////////
// PowerMenuButton, menus::MenuModel implementation:
int PowerMenuButton::GetItemCount() const {
return 2;
}
menus::MenuModel::ItemType PowerMenuButton::GetTypeAt(int index) const {
return menus::MenuModel::TYPE_COMMAND;
}
string16 PowerMenuButton::GetLabelAt(int index) const {
PowerLibrary* cros = PowerLibrary::Get();
// The first item shows the percentage of battery left.
if (index == 0) {
// If fully charged, always show 100% even if internal number is a bit less.
double percent = cros->battery_fully_charged() ? 100 :
cros->battery_percentage();
return l10n_util::GetStringFUTF16(IDS_STATUSBAR_BATTERY_PERCENTAGE,
IntToString16(static_cast<int>(percent)));
}
// The second item shows the battery is charged if it is.
if (cros->battery_fully_charged())
return l10n_util::GetStringUTF16(IDS_STATUSBAR_BATTERY_IS_CHARGED);
// If battery is in an intermediate charge state, we show how much time left.
base::TimeDelta time = cros->line_power_on() ? cros->battery_time_to_full() :
cros->battery_time_to_empty();
if (time.InSeconds() == 0) {
// If time is 0, then that means we are still calculating how much time.
// Depending if line power is on, we either show a message saying that we
// are calculating time until full or calculating remaining time.
int msg = cros->line_power_on() ?
IDS_STATUSBAR_BATTERY_CALCULATING_TIME_UNTIL_FULL :
IDS_STATUSBAR_BATTERY_CALCULATING_TIME_UNTIL_EMPTY;
return l10n_util::GetStringUTF16(msg);
} else {
// Depending if line power is on, we either show a message saying XX:YY
// until full or XX:YY remaining where XX is number of hours and YY is
// number of minutes.
int msg = cros->line_power_on() ? IDS_STATUSBAR_BATTERY_TIME_UNTIL_FULL :
IDS_STATUSBAR_BATTERY_TIME_UNTIL_EMPTY;
int hour = time.InHours();
int min = (time - base::TimeDelta::FromHours(hour)).InMinutes();
string16 hour_str = IntToString16(hour);
string16 min_str = IntToString16(min);
// Append a "0" before the minute if it's only a single digit.
if (min < 10)
min_str = ASCIIToUTF16("0") + min_str;
return l10n_util::GetStringFUTF16(msg, hour_str, min_str);
}
}
////////////////////////////////////////////////////////////////////////////////
// PowerMenuButton, views::ViewMenuDelegate implementation:
void PowerMenuButton::RunMenu(views::View* source, const gfx::Point& pt) {
power_menu_.Rebuild();
power_menu_.UpdateStates();
power_menu_.RunMenuAt(pt, views::Menu2::ALIGN_TOPRIGHT);
}
////////////////////////////////////////////////////////////////////////////////
// PowerMenuButton, PowerLibrary::Observer implementation:
void PowerMenuButton::PowerChanged(PowerLibrary* obj) {
UpdateIcon();
}
////////////////////////////////////////////////////////////////////////////////
// PowerMenuButton, StatusAreaButton implementation:
void PowerMenuButton::DrawPressed(gfx::Canvas* canvas) {
DrawPowerIcon(canvas, *ResourceBundle::GetSharedInstance().
GetBitmapNamed(IDR_STATUSBAR_BATTERY_PRESSED));
}
void PowerMenuButton::DrawIcon(gfx::Canvas* canvas) {
DrawPowerIcon(canvas, icon());
}
void PowerMenuButton::DrawPowerIcon(gfx::Canvas* canvas, SkBitmap icon) {
// Draw the battery icon 6 pixels down to center it.
// Because the status icon is 24x24 but the images are 24x16.
// But since the images are shifted up by 4 pixels, we draw at 6 pixels down.
static const int kIconVerticalPadding = 6;
canvas->DrawBitmapInt(icon, 0, kIconVerticalPadding);
}
void PowerMenuButton::UpdateIcon() {
PowerLibrary* cros = PowerLibrary::Get();
int id = IDR_STATUSBAR_BATTERY_UNKNOWN;
if (PowerLibrary::EnsureLoaded()) {
if (!cros->battery_is_present()) {
id = IDR_STATUSBAR_BATTERY_MISSING;
} else if (cros->line_power_on() && cros->battery_fully_charged()) {
id = IDR_STATUSBAR_BATTERY_CHARGED;
} else {
// If fully charged, always show 100% even if percentage is a bit less.
double percent = cros->battery_fully_charged() ? 100 :
cros->battery_percentage();
// Gets the power image depending on battery percentage. Percentage is
// from 0 to 100, so we need to convert that to 0 to kNumPowerImages - 1.
int index = static_cast<int>(percent / 100.0 *
nextafter(static_cast<float>(kNumPowerImages), 0));
// Make sure that index is between 0 and kNumWifiImages - 1
if (index < 0)
index = 0;
if (index >= kNumPowerImages)
index = kNumPowerImages - 1;
if (cros->line_power_on())
id = IDR_STATUSBAR_BATTERY_CHARGING_1 + index;
else
id = IDR_STATUSBAR_BATTERY_DISCHARGING_1 + index;
}
}
SetIcon(*ResourceBundle::GetSharedInstance().GetBitmapNamed(id));
SchedulePaint();
}
} // namespace chromeos
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