1 /* 2 * Copyright (C) 2013 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.documentsui.prefs; 18 19 import static com.android.documentsui.base.State.MODE_UNKNOWN; 20 21 import android.content.Context; 22 import android.content.SharedPreferences; 23 import android.preference.PreferenceManager; 24 25 import androidx.annotation.IntDef; 26 import androidx.annotation.VisibleForTesting; 27 28 import com.android.documentsui.base.RootInfo; 29 import com.android.documentsui.base.State.ViewMode; 30 31 import java.lang.annotation.Retention; 32 import java.lang.annotation.RetentionPolicy; 33 34 /** 35 * Methods for accessing the local preferences. 36 */ 37 public class LocalPreferences { 38 private static final String ROOT_VIEW_MODE_PREFIX = "rootViewMode-"; 39 private static final String SHOW_HIDDEN_FILES = "showHiddenFiles"; 40 getViewMode(Context context, RootInfo root, @ViewMode int fallback)41 public static @ViewMode int getViewMode(Context context, RootInfo root, 42 @ViewMode int fallback) { 43 return getPrefs(context).getInt(createKey(ROOT_VIEW_MODE_PREFIX, root), fallback); 44 } 45 46 /** Returns if hidden files should be shown. */ getShowHiddenFiles(Context context, boolean fallback)47 public static boolean getShowHiddenFiles(Context context, boolean fallback) { 48 return getPrefs(context).getBoolean(SHOW_HIDDEN_FILES, fallback); 49 } 50 setViewMode(Context context, RootInfo root, @ViewMode int viewMode)51 public static void setViewMode(Context context, RootInfo root, @ViewMode int viewMode) { 52 assert(viewMode != MODE_UNKNOWN); 53 getPrefs(context).edit().putInt(createKey(ROOT_VIEW_MODE_PREFIX, root), viewMode).apply(); 54 } 55 56 /** Sets if hidden files should be shown. */ 57 @VisibleForTesting setShowHiddenFiles(Context context, boolean showHiddenFiles)58 public static void setShowHiddenFiles(Context context, boolean showHiddenFiles) { 59 getPrefs(context).edit() 60 .putBoolean(SHOW_HIDDEN_FILES, showHiddenFiles) 61 .apply(); 62 } 63 getPrefs(Context context)64 private static SharedPreferences getPrefs(Context context) { 65 return PreferenceManager.getDefaultSharedPreferences(context); 66 } 67 createKey(String prefix, RootInfo root)68 private static String createKey(String prefix, RootInfo root) { 69 return prefix + root.authority + root.rootId; 70 } 71 72 public static final int PERMISSION_ASK = 0; 73 public static final int PERMISSION_ASK_AGAIN = 1; 74 public static final int PERMISSION_NEVER_ASK = -1; 75 76 @IntDef(flag = true, value = { 77 PERMISSION_ASK, 78 PERMISSION_ASK_AGAIN, 79 PERMISSION_NEVER_ASK, 80 }) 81 @Retention(RetentionPolicy.SOURCE) 82 public @interface PermissionStatus {} 83 shouldBackup(String s)84 public static boolean shouldBackup(String s) { 85 return (s != null) ? s.startsWith(ROOT_VIEW_MODE_PREFIX) : false; 86 } 87 } 88