| /* |
| * Copyright (C) 2015 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.tv.parental; |
| |
| import android.content.Context; |
| import android.media.tv.TvContentRating; |
| import android.media.tv.TvContentRatingSystemInfo; |
| import android.support.annotation.Nullable; |
| import android.text.TextUtils; |
| import com.android.tv.R; |
| import com.android.tv.common.util.PermissionUtils; |
| import com.android.tv.parental.ContentRatingSystem.Rating; |
| import com.android.tv.parental.ContentRatingSystem.SubRating; |
| import com.android.tv.util.TvInputManagerHelper; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class ContentRatingsManager { |
| private final List<ContentRatingSystem> mContentRatingSystems = new ArrayList<>(); |
| |
| private final Context mContext; |
| private final TvInputManagerHelper.TvInputManagerInterface mTvInputManager; |
| |
| public ContentRatingsManager( |
| Context context, TvInputManagerHelper.TvInputManagerInterface tvInputManager) { |
| mContext = context; |
| this.mTvInputManager = tvInputManager; |
| } |
| |
| public void update() { |
| mContentRatingSystems.clear(); |
| if (PermissionUtils.hasReadContetnRatingSystem(mContext)) { |
| ContentRatingsParser parser = new ContentRatingsParser(mContext); |
| List<TvContentRatingSystemInfo> infos = mTvInputManager.getTvContentRatingSystemList(); |
| for (TvContentRatingSystemInfo info : infos) { |
| List<ContentRatingSystem> list = parser.parse(info); |
| if (list != null) { |
| mContentRatingSystems.addAll(list); |
| } |
| } |
| } |
| } |
| |
| /** Returns the content rating system with the give ID. */ |
| @Nullable |
| public ContentRatingSystem getContentRatingSystem(String contentRatingSystemId) { |
| for (ContentRatingSystem ratingSystem : mContentRatingSystems) { |
| if (TextUtils.equals(ratingSystem.getId(), contentRatingSystemId)) { |
| return ratingSystem; |
| } |
| } |
| return null; |
| } |
| |
| /** Returns a new list of all content rating systems defined. */ |
| public List<ContentRatingSystem> getContentRatingSystems() { |
| return new ArrayList<>(mContentRatingSystems); |
| } |
| |
| /** |
| * Returns the long name of a given content rating including descriptors (sub-ratings) that is |
| * displayed to the user. For example, "TV-PG (L, S)". |
| */ |
| public String getDisplayNameForRating(TvContentRating canonicalRating) { |
| if (TvContentRating.UNRATED.equals(canonicalRating)) { |
| return mContext.getResources().getString(R.string.unrated_rating_name); |
| } |
| Rating rating = getRating(canonicalRating); |
| if (rating == null) { |
| return null; |
| } |
| List<SubRating> subRatings = getSubRatings(rating, canonicalRating); |
| if (!subRatings.isEmpty()) { |
| StringBuilder builder = new StringBuilder(); |
| for (SubRating subRating : subRatings) { |
| builder.append(subRating.getTitle()); |
| builder.append(", "); |
| } |
| return rating.getTitle() + " (" + builder.substring(0, builder.length() - 2) + ")"; |
| } |
| return rating.getTitle(); |
| } |
| |
| private Rating getRating(TvContentRating canonicalRating) { |
| if (canonicalRating == null || mContentRatingSystems == null) { |
| return null; |
| } |
| for (ContentRatingSystem system : mContentRatingSystems) { |
| if (system.getDomain().equals(canonicalRating.getDomain()) |
| && system.getName().equals(canonicalRating.getRatingSystem())) { |
| for (Rating rating : system.getRatings()) { |
| if (rating.getName().equals(canonicalRating.getMainRating())) { |
| return rating; |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| private List<SubRating> getSubRatings(Rating rating, TvContentRating canonicalRating) { |
| List<SubRating> subRatings = new ArrayList<>(); |
| if (rating == null |
| || rating.getSubRatings() == null |
| || canonicalRating == null |
| || canonicalRating.getSubRatings() == null) { |
| return subRatings; |
| } |
| for (String subRatingString : canonicalRating.getSubRatings()) { |
| for (SubRating subRating : rating.getSubRatings()) { |
| if (subRating.getName().equals(subRatingString)) { |
| subRatings.add(subRating); |
| break; |
| } |
| } |
| } |
| return subRatings; |
| } |
| } |