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// Copyright 2014 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 "athena/system/time_view.h"
#include "base/i18n/time_formatting.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/views/border.h"
namespace athena {
namespace {
// 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;
} // namespace
TimeView::TimeView(SystemUI::ColorScheme color_scheme) {
SetHorizontalAlignment(gfx::ALIGN_LEFT);
SetEnabledColor((color_scheme == SystemUI::COLOR_SCHEME_LIGHT)
? SK_ColorWHITE
: SK_ColorDKGRAY);
SetAutoColorReadabilityEnabled(false);
SetFontList(gfx::FontList().DeriveWithStyle(gfx::Font::BOLD));
SetSubpixelRenderingEnabled(false);
const int kHorizontalSpacing = 10;
const int kVerticalSpacing = 3;
SetBorder(views::Border::CreateEmptyBorder(kVerticalSpacing,
kHorizontalSpacing,
kVerticalSpacing,
kHorizontalSpacing));
UpdateText();
}
TimeView::~TimeView() {
}
void TimeView::SetTimer(base::Time now) {
// 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::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_.Stop();
timer_.Start(
FROM_HERE, base::TimeDelta::FromSeconds(seconds_left),
this, &TimeView::UpdateText);
}
void TimeView::UpdateText() {
base::Time now = base::Time::Now();
SetText(base::TimeFormatTimeOfDayWithHourClockType(
now, base::k12HourClock, base::kKeepAmPm));
SetTimer(now);
}
} // namespace athena
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