1 /* 2 * Copyright (C) 2008 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.launcher2; 18 19 import java.util.ArrayList; 20 21 import android.content.ContentValues; 22 23 /** 24 * Represents a folder containing shortcuts or apps. 25 */ 26 class FolderInfo extends ItemInfo { 27 28 /** 29 * Whether this folder has been opened 30 */ 31 boolean opened; 32 33 /** 34 * The folder name. 35 */ 36 CharSequence title; 37 38 /** 39 * The apps and shortcuts 40 */ 41 ArrayList<ShortcutInfo> contents = new ArrayList<ShortcutInfo>(); 42 43 ArrayList<FolderListener> listeners = new ArrayList<FolderListener>(); 44 FolderInfo()45 FolderInfo() { 46 itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER; 47 } 48 49 /** 50 * Add an app or shortcut 51 * 52 * @param item 53 */ add(ShortcutInfo item)54 public void add(ShortcutInfo item) { 55 contents.add(item); 56 for (int i = 0; i < listeners.size(); i++) { 57 listeners.get(i).onAdd(item); 58 } 59 itemsChanged(); 60 } 61 62 /** 63 * Remove an app or shortcut. Does not change the DB. 64 * 65 * @param item 66 */ remove(ShortcutInfo item)67 public void remove(ShortcutInfo item) { 68 contents.remove(item); 69 for (int i = 0; i < listeners.size(); i++) { 70 listeners.get(i).onRemove(item); 71 } 72 itemsChanged(); 73 } 74 setTitle(CharSequence title)75 public void setTitle(CharSequence title) { 76 this.title = title; 77 for (int i = 0; i < listeners.size(); i++) { 78 listeners.get(i).onTitleChanged(title); 79 } 80 } 81 82 @Override onAddToDatabase(ContentValues values)83 void onAddToDatabase(ContentValues values) { 84 super.onAddToDatabase(values); 85 values.put(LauncherSettings.Favorites.TITLE, title.toString()); 86 } 87 addListener(FolderListener listener)88 void addListener(FolderListener listener) { 89 listeners.add(listener); 90 } 91 removeListener(FolderListener listener)92 void removeListener(FolderListener listener) { 93 if (listeners.contains(listener)) { 94 listeners.remove(listener); 95 } 96 } 97 itemsChanged()98 void itemsChanged() { 99 for (int i = 0; i < listeners.size(); i++) { 100 listeners.get(i).onItemsChanged(); 101 } 102 } 103 104 @Override unbind()105 void unbind() { 106 super.unbind(); 107 listeners.clear(); 108 } 109 110 interface FolderListener { onAdd(ShortcutInfo item)111 public void onAdd(ShortcutInfo item); onRemove(ShortcutInfo item)112 public void onRemove(ShortcutInfo item); onTitleChanged(CharSequence title)113 public void onTitleChanged(CharSequence title); onItemsChanged()114 public void onItemsChanged(); 115 } 116 } 117