/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.systemui.statusbar.policy;
import android.app.ActivityManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.os.UserHandle;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.format.DateFormat;
import android.text.style.CharacterStyle;
import android.text.style.RelativeSizeSpan;
import android.util.AttributeSet;
import android.widget.TextView;
import com.android.systemui.DemoMode;
import com.android.systemui.R;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;
import libcore.icu.LocaleData;
/**
* Digital clock for the status bar.
*/
public class Clock extends TextView implements DemoMode {
private boolean mAttached;
private Calendar mCalendar;
private String mClockFormatString;
private SimpleDateFormat mClockFormat;
private Locale mLocale;
private static final int AM_PM_STYLE_NORMAL = 0;
private static final int AM_PM_STYLE_SMALL = 1;
private static final int AM_PM_STYLE_GONE = 2;
private final int mAmPmStyle;
public Clock(Context context) {
this(context, null);
}
public Clock(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public Clock(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray a = context.getTheme().obtainStyledAttributes(
attrs,
R.styleable.Clock,
0, 0);
try {
mAmPmStyle = a.getInt(R.styleable.Clock_amPmStyle, AM_PM_STYLE_GONE);
} finally {
a.recycle();
}
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (!mAttached) {
mAttached = true;
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_TIME_TICK);
filter.addAction(Intent.ACTION_TIME_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
filter.addAction(Intent.ACTION_USER_SWITCHED);
getContext().registerReceiverAsUser(mIntentReceiver, UserHandle.ALL, filter,
null, getHandler());
}
// NOTE: It's safe to do these after registering the receiver since the receiver always runs
// in the main thread, therefore the receiver can't run before this method returns.
// The time zone may have changed while the receiver wasn't registered, so update the Time
mCalendar = Calendar.getInstance(TimeZone.getDefault());
// Make sure we update to the current time
updateClock();
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if (mAttached) {
getContext().unregisterReceiver(mIntentReceiver);
mAttached = false;
}
}
private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_TIMEZONE_CHANGED)) {
String tz = intent.getStringExtra("time-zone");
mCalendar = Calendar.getInstance(TimeZone.getTimeZone(tz));
if (mClockFormat != null) {
mClockFormat.setTimeZone(mCalendar.getTimeZone());
}
} else if (action.equals(Intent.ACTION_CONFIGURATION_CHANGED)) {
final Locale newLocale = getResources().getConfiguration().locale;
if (! newLocale.equals(mLocale)) {
mLocale = newLocale;
mClockFormatString = ""; // force refresh
}
}
updateClock();
}
};
final void updateClock() {
if (mDemoMode) return;
mCalendar.setTimeInMillis(System.currentTimeMillis());
setText(getSmallTime());
}
private final CharSequence getSmallTime() {
Context context = getContext();
boolean is24 = DateFormat.is24HourFormat(context, ActivityManager.getCurrentUser());
LocaleData d = LocaleData.get(context.getResources().getConfiguration().locale);
final char MAGIC1 = '\uEF00';
final char MAGIC2 = '\uEF01';
SimpleDateFormat sdf;
String format = is24 ? d.timeFormat24 : d.timeFormat12;
if (!format.equals(mClockFormatString)) {
/*
* Search for an unquoted "a" in the format string, so we can
* add dummy characters around it to let us find it again after
* formatting and change its size.
*/
if (mAmPmStyle != AM_PM_STYLE_NORMAL) {
int a = -1;
boolean quoted = false;
for (int i = 0; i < format.length(); i++) {
char c = format.charAt(i);
if (c == '\'') {
quoted = !quoted;
}
if (!quoted && c == 'a') {
a = i;
break;
}
}
if (a >= 0) {
// Move a back so any whitespace before AM/PM is also in the alternate size.
final int b = a;
while (a > 0 && Character.isWhitespace(format.charAt(a-1))) {
a--;
}
format = format.substring(0, a) + MAGIC1 + format.substring(a, b)
+ "a" + MAGIC2 + format.substring(b + 1);
}
}
mClockFormat = sdf = new SimpleDateFormat(format);
mClockFormatString = format;
} else {
sdf = mClockFormat;
}
String result = sdf.format(mCalendar.getTime());
if (mAmPmStyle != AM_PM_STYLE_NORMAL) {
int magic1 = result.indexOf(MAGIC1);
int magic2 = result.indexOf(MAGIC2);
if (magic1 >= 0 && magic2 > magic1) {
SpannableStringBuilder formatted = new SpannableStringBuilder(result);
if (mAmPmStyle == AM_PM_STYLE_GONE) {
formatted.delete(magic1, magic2+1);
} else {
if (mAmPmStyle == AM_PM_STYLE_SMALL) {
CharacterStyle style = new RelativeSizeSpan(0.7f);
formatted.setSpan(style, magic1, magic2,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
}
formatted.delete(magic2, magic2 + 1);
formatted.delete(magic1, magic1 + 1);
}
return formatted;
}
}
return result;
}
private boolean mDemoMode;
@Override
public void dispatchDemoCommand(String command, Bundle args) {
if (!mDemoMode && command.equals(COMMAND_ENTER)) {
mDemoMode = true;
} else if (mDemoMode && command.equals(COMMAND_EXIT)) {
mDemoMode = false;
updateClock();
} else if (mDemoMode && command.equals(COMMAND_CLOCK)) {
String millis = args.getString("millis");
String hhmm = args.getString("hhmm");
if (millis != null) {
mCalendar.setTimeInMillis(Long.parseLong(millis));
} else if (hhmm != null && hhmm.length() == 4) {
int hh = Integer.parseInt(hhmm.substring(0, 2));
int mm = Integer.parseInt(hhmm.substring(2));
mCalendar.set(Calendar.HOUR, hh);
mCalendar.set(Calendar.MINUTE, mm);
}
setText(getSmallTime());
}
}
}
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