Jorim Jaggi | 329fa24 | 2014-07-11 21:42:00 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2014 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License |
| 15 | */ |
| 16 | |
| 17 | package com.android.systemui.statusbar.policy; |
| 18 | |
| 19 | import android.content.BroadcastReceiver; |
| 20 | import android.content.Context; |
| 21 | import android.content.Intent; |
| 22 | import android.content.IntentFilter; |
| 23 | import android.text.format.DateFormat; |
| 24 | import android.util.AttributeSet; |
| 25 | import android.widget.LinearLayout; |
| 26 | import android.widget.TextClock; |
| 27 | |
| 28 | import com.android.systemui.R; |
| 29 | |
| 30 | /** |
| 31 | * Container for a clock which has two separate views for the clock itself and AM/PM indicator. This |
| 32 | * is used to scale the clock independently of AM/PM. |
| 33 | */ |
| 34 | public class SplitClockView extends LinearLayout { |
| 35 | |
| 36 | private TextClock mTimeView; |
| 37 | private TextClock mAmPmView; |
| 38 | |
| 39 | private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() { |
| 40 | @Override |
| 41 | public void onReceive(Context context, Intent intent) { |
| 42 | final String action = intent.getAction(); |
| 43 | if (Intent.ACTION_TIME_CHANGED.equals(action) |
| 44 | || Intent.ACTION_TIMEZONE_CHANGED.equals(action) |
| 45 | || Intent.ACTION_LOCALE_CHANGED.equals(action)) { |
| 46 | updatePatterns(); |
| 47 | } |
| 48 | } |
| 49 | }; |
| 50 | |
| 51 | public SplitClockView(Context context, AttributeSet attrs) { |
| 52 | super(context, attrs); |
| 53 | } |
| 54 | |
| 55 | @Override |
| 56 | protected void onFinishInflate() { |
| 57 | super.onFinishInflate(); |
| 58 | mTimeView = (TextClock) findViewById(R.id.time_view); |
| 59 | mAmPmView = (TextClock) findViewById(R.id.am_pm_view); |
| 60 | } |
| 61 | |
| 62 | @Override |
| 63 | protected void onAttachedToWindow() { |
| 64 | super.onAttachedToWindow(); |
| 65 | |
| 66 | IntentFilter filter = new IntentFilter(); |
| 67 | filter.addAction(Intent.ACTION_TIME_CHANGED); |
| 68 | filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); |
| 69 | filter.addAction(Intent.ACTION_LOCALE_CHANGED); |
| 70 | getContext().registerReceiver(mIntentReceiver, filter, null, null); |
| 71 | |
| 72 | updatePatterns(); |
| 73 | } |
| 74 | |
| 75 | @Override |
| 76 | protected void onDetachedFromWindow() { |
| 77 | super.onDetachedFromWindow(); |
| 78 | getContext().unregisterReceiver(mIntentReceiver); |
| 79 | } |
| 80 | |
| 81 | private void updatePatterns() { |
| 82 | String formatString = DateFormat.getTimeFormatString(getContext()); |
| 83 | int index = getAmPmPartEndIndex(formatString); |
| 84 | String timeString; |
| 85 | String amPmString; |
| 86 | if (index == -1) { |
| 87 | timeString = formatString; |
| 88 | amPmString = ""; |
| 89 | } else { |
| 90 | timeString = formatString.substring(0, index); |
| 91 | amPmString = formatString.substring(index); |
| 92 | } |
| 93 | mTimeView.setFormat12Hour(timeString); |
| 94 | mTimeView.setFormat24Hour(timeString); |
| 95 | mAmPmView.setFormat12Hour(amPmString); |
| 96 | mAmPmView.setFormat24Hour(amPmString); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * @return the index where the AM/PM part starts at the end in {@code formatString} including |
| 101 | * leading white spaces or {@code -1} if no AM/PM part is found or {@code formatString} |
| 102 | * doesn't end with AM/PM part |
| 103 | */ |
| 104 | private static int getAmPmPartEndIndex(String formatString) { |
| 105 | boolean hasAmPm = false; |
| 106 | int length = formatString.length(); |
| 107 | for (int i = length - 1; i >= 0; i--) { |
| 108 | char c = formatString.charAt(i); |
| 109 | boolean isAmPm = c == 'a'; |
| 110 | boolean isWhitespace = Character.isWhitespace(c); |
| 111 | if (isAmPm) { |
| 112 | hasAmPm = true; |
| 113 | } |
| 114 | if (isAmPm || isWhitespace) { |
| 115 | continue; |
| 116 | } |
| 117 | if (i == length - 1) { |
| 118 | |
| 119 | // First character was not AM/PM and not whitespace, so it's not ending with AM/PM. |
| 120 | return -1; |
| 121 | } else { |
| 122 | |
| 123 | // If we have AM/PM at all, return last index, or -1 to indicate that it's not |
| 124 | // ending with AM/PM. |
| 125 | return hasAmPm ? i + 1 : -1; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | // Only AM/PM and whitespaces? The whole string is AM/PM. Else: Only whitespaces in the |
| 130 | // string. |
| 131 | return hasAmPm ? 0 : -1; |
| 132 | } |
| 133 | |
| 134 | } |