| /* |
| * Copyright (C) 2017 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.settingslib.suggestions; |
| |
| import android.content.Intent; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| |
| import com.android.settingslib.drawer.Tile; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| public class SuggestionList { |
| // Category -> list of suggestion map |
| private final Map<SuggestionCategory, List<Tile>> mSuggestions; |
| |
| // A flatten list of all suggestions. |
| private List<Tile> mSuggestionList; |
| |
| public SuggestionList() { |
| mSuggestions = new ArrayMap<>(); |
| } |
| |
| public void addSuggestions(SuggestionCategory category, List<Tile> suggestions) { |
| mSuggestions.put(category, suggestions); |
| } |
| |
| public List<Tile> getSuggestions() { |
| if (mSuggestionList != null) { |
| return mSuggestionList; |
| } |
| mSuggestionList = new ArrayList<>(); |
| for (List<Tile> suggestions : mSuggestions.values()) { |
| mSuggestionList.addAll(suggestions); |
| } |
| dedupeSuggestions(mSuggestionList); |
| return mSuggestionList; |
| } |
| |
| public boolean isExclusiveSuggestionCategory() { |
| if (mSuggestions.size() != 1) { |
| // If there is no category, or more than 1 category, it's not exclusive by definition. |
| return false; |
| } |
| for (SuggestionCategory category : mSuggestions.keySet()) { |
| if (category.exclusive) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Filter suggestions list so they are all unique. |
| */ |
| private void dedupeSuggestions(List<Tile> suggestions) { |
| final Set<String> intents = new ArraySet<>(); |
| for (int i = suggestions.size() - 1; i >= 0; i--) { |
| final Tile suggestion = suggestions.get(i); |
| final String intentUri = suggestion.intent.toUri(Intent.URI_INTENT_SCHEME); |
| if (intents.contains(intentUri)) { |
| suggestions.remove(i); |
| } else { |
| intents.add(intentUri); |
| } |
| } |
| } |
| } |