1 /* 2 * Copyright (C) 2015 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.tv.util; 18 19 import android.content.Context; 20 import android.os.Build; 21 import android.os.LocaleList; 22 import android.support.annotation.NonNull; 23 import android.support.annotation.Nullable; 24 import android.support.annotation.Size; 25 import android.view.accessibility.CaptioningManager; 26 27 import java.util.ArrayList; 28 import java.util.List; 29 import java.util.Locale; 30 31 public class CaptionSettings { 32 public static final int OPTION_SYSTEM = 0; 33 public static final int OPTION_OFF = 1; 34 public static final int OPTION_ON = 2; 35 36 private final CaptioningManager mCaptioningManager; 37 private int mOption = OPTION_SYSTEM; 38 private String mLanguage; 39 private String mTrackId; 40 CaptionSettings(Context context)41 public CaptionSettings(Context context) { 42 mCaptioningManager = 43 (CaptioningManager) context.getSystemService(Context.CAPTIONING_SERVICE); 44 } 45 46 /** @deprecated use {@link #getSystemPreferenceLanguageList} instead. */ 47 @Deprecated getSystemLanguage()48 public final String getSystemLanguage() { 49 Locale l = mCaptioningManager.getLocale(); 50 if (l != null) { 51 return l.getLanguage(); 52 } 53 return null; 54 } 55 56 @NonNull 57 @Size(min=1) getSystemPreferenceLanguageList()58 public final List<String> getSystemPreferenceLanguageList() { 59 List<String> languageList = new ArrayList<>(); 60 Locale l = mCaptioningManager.getLocale(); 61 if (l != null) { 62 languageList.add(l.getLanguage()); 63 } 64 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { 65 LocaleList locales = LocaleList.getDefault(); 66 for (int i = 0; i < locales.size() ; i++) { 67 languageList.add(locales.get(i).getLanguage()); 68 } 69 } else { 70 languageList.add(Locale.getDefault().getLanguage()); 71 } 72 return languageList; 73 } 74 75 /** Returns the language of closed captions based on options. */ 76 @Nullable getLanguage()77 public final String getLanguage() { 78 switch (mOption) { 79 case OPTION_SYSTEM: 80 return getSystemPreferenceLanguageList().get(0); 81 case OPTION_OFF: 82 return null; 83 case OPTION_ON: 84 return mLanguage; 85 } 86 return null; 87 } 88 isSystemSettingEnabled()89 public final boolean isSystemSettingEnabled() { 90 return mCaptioningManager.isEnabled(); 91 } 92 isEnabled()93 public final boolean isEnabled() { 94 switch (mOption) { 95 case OPTION_SYSTEM: 96 return isSystemSettingEnabled(); 97 case OPTION_OFF: 98 return false; 99 case OPTION_ON: 100 return true; 101 } 102 return false; 103 } 104 getEnableOption()105 public int getEnableOption() { 106 return mOption; 107 } 108 setEnableOption(int option)109 public void setEnableOption(int option) { 110 mOption = option; 111 } 112 setLanguage(String language)113 public void setLanguage(String language) { 114 mLanguage = language; 115 } 116 117 /** Returns the track ID to be used as an alternative key. */ getTrackId()118 public String getTrackId() { 119 return mTrackId; 120 } 121 122 /** Sets the track ID to be used as an alternative key. */ setTrackId(String trackId)123 public void setTrackId(String trackId) { 124 mTrackId = trackId; 125 } 126 } 127