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.parental; 18 19 import android.content.Context; 20 import android.media.tv.TvContentRating; 21 import android.media.tv.TvContentRatingSystemInfo; 22 import android.support.annotation.Nullable; 23 import android.text.TextUtils; 24 import com.android.tv.R; 25 import com.android.tv.parental.ContentRatingSystem.Rating; 26 import com.android.tv.parental.ContentRatingSystem.SubRating; 27 import com.android.tv.util.TvInputManagerHelper; 28 import java.util.ArrayList; 29 import java.util.List; 30 31 public class ContentRatingsManager { 32 private final List<ContentRatingSystem> mContentRatingSystems = new ArrayList<>(); 33 34 private final Context mContext; 35 private final TvInputManagerHelper.TvInputManagerInterface mTvInputManager; 36 ContentRatingsManager( Context context, TvInputManagerHelper.TvInputManagerInterface tvInputManager)37 public ContentRatingsManager( 38 Context context, TvInputManagerHelper.TvInputManagerInterface tvInputManager) { 39 mContext = context; 40 this.mTvInputManager = tvInputManager; 41 } 42 update()43 public void update() { 44 mContentRatingSystems.clear(); 45 ContentRatingsParser parser = new ContentRatingsParser(mContext); 46 47 List<TvContentRatingSystemInfo> infos = mTvInputManager.getTvContentRatingSystemList(); 48 for (TvContentRatingSystemInfo info : infos) { 49 List<ContentRatingSystem> list = parser.parse(info); 50 if (list != null) { 51 mContentRatingSystems.addAll(list); 52 } 53 } 54 } 55 56 /** Returns the content rating system with the give ID. */ 57 @Nullable getContentRatingSystem(String contentRatingSystemId)58 public ContentRatingSystem getContentRatingSystem(String contentRatingSystemId) { 59 for (ContentRatingSystem ratingSystem : mContentRatingSystems) { 60 if (TextUtils.equals(ratingSystem.getId(), contentRatingSystemId)) { 61 return ratingSystem; 62 } 63 } 64 return null; 65 } 66 67 /** Returns a new list of all content rating systems defined. */ getContentRatingSystems()68 public List<ContentRatingSystem> getContentRatingSystems() { 69 return new ArrayList<>(mContentRatingSystems); 70 } 71 72 /** 73 * Returns the long name of a given content rating including descriptors (sub-ratings) that is 74 * displayed to the user. For example, "TV-PG (L, S)". 75 */ getDisplayNameForRating(TvContentRating canonicalRating)76 public String getDisplayNameForRating(TvContentRating canonicalRating) { 77 if (TvContentRating.UNRATED.equals(canonicalRating)) { 78 return mContext.getResources().getString(R.string.unrated_rating_name); 79 } 80 Rating rating = getRating(canonicalRating); 81 if (rating == null) { 82 return null; 83 } 84 List<SubRating> subRatings = getSubRatings(rating, canonicalRating); 85 if (!subRatings.isEmpty()) { 86 StringBuilder builder = new StringBuilder(); 87 for (SubRating subRating : subRatings) { 88 builder.append(subRating.getTitle()); 89 builder.append(", "); 90 } 91 return rating.getTitle() + " (" + builder.substring(0, builder.length() - 2) + ")"; 92 } 93 return rating.getTitle(); 94 } 95 getRating(TvContentRating canonicalRating)96 private Rating getRating(TvContentRating canonicalRating) { 97 if (canonicalRating == null || mContentRatingSystems == null) { 98 return null; 99 } 100 for (ContentRatingSystem system : mContentRatingSystems) { 101 if (system.getDomain().equals(canonicalRating.getDomain()) 102 && system.getName().equals(canonicalRating.getRatingSystem())) { 103 for (Rating rating : system.getRatings()) { 104 if (rating.getName().equals(canonicalRating.getMainRating())) { 105 return rating; 106 } 107 } 108 } 109 } 110 return null; 111 } 112 getSubRatings(Rating rating, TvContentRating canonicalRating)113 private List<SubRating> getSubRatings(Rating rating, TvContentRating canonicalRating) { 114 List<SubRating> subRatings = new ArrayList<>(); 115 if (rating == null 116 || rating.getSubRatings() == null 117 || canonicalRating == null 118 || canonicalRating.getSubRatings() == null) { 119 return subRatings; 120 } 121 for (String subRatingString : canonicalRating.getSubRatings()) { 122 for (SubRating subRating : rating.getSubRatings()) { 123 if (subRating.getName().equals(subRatingString)) { 124 subRatings.add(subRating); 125 break; 126 } 127 } 128 } 129 return subRatings; 130 } 131 } 132