1 /* 2 * Copyright (C) 2020 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.settings.accessibility; 18 19 import android.content.ComponentName; 20 import android.content.Context; 21 import android.content.SharedPreferences; 22 23 import com.android.settings.accessibility.AccessibilityUtil.UserShortcutType; 24 25 import java.util.HashSet; 26 import java.util.Set; 27 28 /** Static utility methods relating to {@link PreferredShortcut} */ 29 public final class PreferredShortcuts { 30 31 private static final String ACCESSIBILITY_PERF = "accessibility_prefs"; 32 private static final String USER_SHORTCUT_TYPE = "user_shortcut_type"; 33 34 /** 35 * Retrieves {@link UserShortcutType} for the given {@code componentName} from 36 * SharedPreferences. 37 * 38 * @param context {@link Context} to access the {@link SharedPreferences} 39 * @param componentName Name of the service or activity, should be the format of {@link 40 * ComponentName#flattenToString()}. 41 * @param defaultType See {@link UserShortcutType} 42 * @return {@link UserShortcutType} 43 */ retrieveUserShortcutType(Context context, String componentName, int defaultType)44 public static int retrieveUserShortcutType(Context context, String componentName, 45 int defaultType) { 46 if (componentName == null) { 47 return defaultType; 48 } 49 50 // Create a mutable set to modify 51 final Set<String> info = new HashSet<>(getFromSharedPreferences(context)); 52 info.removeIf(str -> !str.contains(componentName)); 53 54 if (info.isEmpty()) { 55 return defaultType; 56 } 57 58 final String str = info.stream().findFirst().get(); 59 final PreferredShortcut shortcut = PreferredShortcut.fromString(str); 60 return shortcut.getType(); 61 } 62 63 /** 64 * Saves a {@link PreferredShortcut} which containing {@link ComponentName#flattenToString()} 65 * and {@link UserShortcutType} in SharedPreferences. 66 * 67 * @param context {@link Context} to access the {@link SharedPreferences} 68 * @param shortcut Contains {@link ComponentName#flattenToString()} and {@link UserShortcutType} 69 */ saveUserShortcutType(Context context, PreferredShortcut shortcut)70 public static void saveUserShortcutType(Context context, PreferredShortcut shortcut) { 71 final String componentName = shortcut.getComponentName(); 72 if (componentName == null) { 73 return; 74 } 75 76 // Create a mutable set to modify 77 final Set<String> info = new HashSet<>(getFromSharedPreferences(context)); 78 info.removeIf(str -> str.contains(componentName)); 79 info.add(shortcut.toString()); 80 saveToSharedPreferences(context, info); 81 } 82 83 /** 84 * Returns a immutable set of {@link PreferredShortcut#toString()} list from 85 * SharedPreferences. 86 */ getFromSharedPreferences(Context context)87 private static Set<String> getFromSharedPreferences(Context context) { 88 return getSharedPreferences(context).getStringSet(USER_SHORTCUT_TYPE, Set.of()); 89 } 90 91 /** Sets a set of {@link PreferredShortcut#toString()} list into SharedPreferences. */ saveToSharedPreferences(Context context, Set<String> data)92 private static void saveToSharedPreferences(Context context, Set<String> data) { 93 SharedPreferences.Editor editor = getSharedPreferences(context).edit(); 94 editor.putStringSet(USER_SHORTCUT_TYPE, data).apply(); 95 } 96 getSharedPreferences(Context context)97 private static SharedPreferences getSharedPreferences(Context context) { 98 return context.getSharedPreferences(ACCESSIBILITY_PERF, Context.MODE_PRIVATE); 99 } 100 PreferredShortcuts()101 private PreferredShortcuts() {} 102 } 103