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/*
* Copyright (C) 2014 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.os.UserHandle;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import android.widget.LinearLayout;
import android.widget.TextClock;
import com.android.systemui.R;
/**
* Container for a clock which has two separate views for the clock itself and AM/PM indicator. This
* is used to scale the clock independently of AM/PM.
*/
public class SplitClockView extends LinearLayout {
private TextClock mTimeView;
private TextClock mAmPmView;
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (Intent.ACTION_TIME_CHANGED.equals(action)
|| Intent.ACTION_TIMEZONE_CHANGED.equals(action)
|| Intent.ACTION_LOCALE_CHANGED.equals(action)
|| Intent.ACTION_CONFIGURATION_CHANGED.equals(action)
|| Intent.ACTION_USER_SWITCHED.equals(action)) {
updatePatterns();
}
}
};
public SplitClockView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mTimeView = (TextClock) findViewById(R.id.time_view);
mAmPmView = (TextClock) findViewById(R.id.am_pm_view);
mTimeView.setShowCurrentUserTime(true);
mAmPmView.setShowCurrentUserTime(true);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_TIME_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
filter.addAction(Intent.ACTION_LOCALE_CHANGED);
filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
filter.addAction(Intent.ACTION_USER_SWITCHED);
getContext().registerReceiverAsUser(mIntentReceiver, UserHandle.ALL, filter, null, null);
updatePatterns();
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
getContext().unregisterReceiver(mIntentReceiver);
}
private void updatePatterns() {
String formatString = DateFormat.getTimeFormatString(getContext(),
ActivityManager.getCurrentUser());
int index = getAmPmPartEndIndex(formatString);
String timeString;
String amPmString;
if (index == -1) {
timeString = formatString;
amPmString = "";
} else {
timeString = formatString.substring(0, index);
amPmString = formatString.substring(index);
}
mTimeView.setFormat12Hour(timeString);
mTimeView.setFormat24Hour(timeString);
mTimeView.setContentDescriptionFormat12Hour(formatString);
mTimeView.setContentDescriptionFormat24Hour(formatString);
mAmPmView.setFormat12Hour(amPmString);
mAmPmView.setFormat24Hour(amPmString);
}
/**
* @return the index where the AM/PM part starts at the end in {@code formatString} including
* leading white spaces or {@code -1} if no AM/PM part is found or {@code formatString}
* doesn't end with AM/PM part
*/
private static int getAmPmPartEndIndex(String formatString) {
boolean hasAmPm = false;
int length = formatString.length();
for (int i = length - 1; i >= 0; i--) {
char c = formatString.charAt(i);
boolean isAmPm = c == 'a';
boolean isWhitespace = Character.isWhitespace(c);
if (isAmPm) {
hasAmPm = true;
}
if (isAmPm || isWhitespace) {
continue;
}
if (i == length - 1) {
// First character was not AM/PM and not whitespace, so it's not ending with AM/PM.
return -1;
} else {
// If we have AM/PM at all, return last index, or -1 to indicate that it's not
// ending with AM/PM.
return hasAmPm ? i + 1 : -1;
}
}
// Only AM/PM and whitespaces? The whole string is AM/PM. Else: Only whitespaces in the
// string.
return hasAmPm ? 0 : -1;
}
}
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