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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/clock_menu_button.h"
#include "app/gfx/canvas.h"
#include "app/gfx/font.h"
#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "base/i18n/time_formatting.h"
#include "base/string_util.h"
#include "base/time.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/profile.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/pref_names.h"
#include "grit/generated_resources.h"
#include "unicode/calendar.h"
namespace chromeos {
// Amount of slop to add into the timer to make sure we're into the next minute
// when the timer goes off.
const int kTimerSlopSeconds = 1;
ClockMenuButton::ClockMenuButton(Browser* browser)
: MenuButton(NULL, std::wstring(), this, false),
browser_(browser) {
set_border(NULL);
SetFont(ResourceBundle::GetSharedInstance().GetFont(
ResourceBundle::BaseFont).DeriveFont(0, gfx::Font::BOLD));
SetEnabledColor(SK_ColorWHITE);
SetShowHighlighted(false);
// Set initial text to make sure that the text button wide enough.
std::wstring zero = ASCIIToWide("00");
SetText(l10n_util::GetStringF(IDS_STATUSBAR_CLOCK_SHORT_TIME_AM, zero, zero));
SetText(l10n_util::GetStringF(IDS_STATUSBAR_CLOCK_SHORT_TIME_PM, zero, zero));
set_alignment(TextButton::ALIGN_RIGHT);
UpdateTextAndSetNextTimer();
if (browser_ != NULL) {
// Init member prefs so we can update the controls if prefs change.
timezone_.Init(prefs::kTimeZone, browser_->profile()->GetPrefs(), this);
}
}
void ClockMenuButton::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (type == NotificationType::PREF_CHANGED) {
const std::wstring* pref_name = Details<std::wstring>(details).ptr();
if (!pref_name || *pref_name == prefs::kTimeZone)
UpdateText();
}
}
void ClockMenuButton::UpdateTextAndSetNextTimer() {
UpdateText();
// Try to set the timer to go off at the next change of the minute. We don't
// want to have the timer go off more than necessary since that will cause
// the CPU to wake up and consume power.
base::Time now = base::Time::Now();
base::Time::Exploded exploded;
now.LocalExplode(&exploded);
// Often this will be called at minute boundaries, and we'll actually want
// 60 seconds from now.
int seconds_left = 60 - exploded.second;
if (seconds_left == 0)
seconds_left = 60;
// Make sure that the timer fires on the next minute. Without this, if it is
// called just a teeny bit early, then it will skip the next minute.
seconds_left += kTimerSlopSeconds;
timer_.Start(base::TimeDelta::FromSeconds(seconds_left), this,
&ClockMenuButton::UpdateTextAndSetNextTimer);
}
void ClockMenuButton::UpdateText() {
// Use icu::Calendar because the correct timezone is set on icu::TimeZone's
// default timezone.
UErrorCode error = U_ZERO_ERROR;
scoped_ptr<icu::Calendar> cal(icu::Calendar::createInstance(error));
if (!cal.get())
return;
int hour = cal->get(UCAL_HOUR, error);
int minute = cal->get(UCAL_MINUTE, error);
int ampm = cal->get(UCAL_AM_PM, error);
if (hour == 0)
hour = 12;
std::wstring hour_str = IntToWString(hour);
std::wstring min_str = IntToWString(minute);
// Append a "0" before the minute if it's only a single digit.
if (minute < 10)
min_str = IntToWString(0) + min_str;
int msg = (ampm == UCAL_AM) ? IDS_STATUSBAR_CLOCK_SHORT_TIME_AM :
IDS_STATUSBAR_CLOCK_SHORT_TIME_PM;
std::wstring time_string = l10n_util::GetStringF(msg, hour_str, min_str);
SetText(time_string);
SchedulePaint();
}
////////////////////////////////////////////////////////////////////////////////
// ClockMenuButton, menus::MenuModel implementation:
int ClockMenuButton::GetItemCount() const {
return browser_ == NULL ? 1 : 3;
}
menus::MenuModel::ItemType ClockMenuButton::GetTypeAt(int index) const {
// There's a separator between the current date and the menu item to open
// the options menu.
return index == 1 ? menus::MenuModel::TYPE_SEPARATOR:
menus::MenuModel::TYPE_COMMAND;
}
string16 ClockMenuButton::GetLabelAt(int index) const {
if (index == 0)
return WideToUTF16(base::TimeFormatFriendlyDate(base::Time::Now()));
return l10n_util::GetStringUTF16(IDS_STATUSBAR_CLOCK_OPEN_OPTIONS_DIALOG);
}
bool ClockMenuButton::IsEnabledAt(int index) const {
// The 1st item is the current date, which is disabled.
return index != 0;
}
void ClockMenuButton::ActivatedAt(int index) {
if (browser_ != NULL)
browser_->OpenSystemOptionsDialog();
}
////////////////////////////////////////////////////////////////////////////////
// ClockMenuButton, views::ViewMenuDelegate implementation:
void ClockMenuButton::RunMenu(views::View* source, const gfx::Point& pt) {
if (!clock_menu_.get())
clock_menu_.reset(new views::Menu2(this));
else
clock_menu_->Rebuild();
clock_menu_->UpdateStates();
clock_menu_->RunMenuAt(pt, views::Menu2::ALIGN_TOPRIGHT);
}
} // namespace chromeos
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