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 apps and shortcuts 35 */ 36 ArrayList<ShortcutInfo> contents = new ArrayList<ShortcutInfo>(); 37 38 ArrayList<FolderListener> listeners = new ArrayList<FolderListener>(); 39 FolderInfo()40 FolderInfo() { 41 itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER; 42 } 43 44 /** 45 * Add an app or shortcut 46 * 47 * @param item 48 */ add(ShortcutInfo item)49 public void add(ShortcutInfo item) { 50 contents.add(item); 51 for (int i = 0; i < listeners.size(); i++) { 52 listeners.get(i).onAdd(item); 53 } 54 itemsChanged(); 55 } 56 57 /** 58 * Remove an app or shortcut. Does not change the DB. 59 * 60 * @param item 61 */ remove(ShortcutInfo item)62 public void remove(ShortcutInfo item) { 63 contents.remove(item); 64 for (int i = 0; i < listeners.size(); i++) { 65 listeners.get(i).onRemove(item); 66 } 67 itemsChanged(); 68 } 69 setTitle(CharSequence title)70 public void setTitle(CharSequence title) { 71 this.title = title; 72 for (int i = 0; i < listeners.size(); i++) { 73 listeners.get(i).onTitleChanged(title); 74 } 75 } 76 77 @Override onAddToDatabase(ContentValues values)78 void onAddToDatabase(ContentValues values) { 79 super.onAddToDatabase(values); 80 values.put(LauncherSettings.Favorites.TITLE, title.toString()); 81 } 82 addListener(FolderListener listener)83 void addListener(FolderListener listener) { 84 listeners.add(listener); 85 } 86 removeListener(FolderListener listener)87 void removeListener(FolderListener listener) { 88 if (listeners.contains(listener)) { 89 listeners.remove(listener); 90 } 91 } 92 itemsChanged()93 void itemsChanged() { 94 for (int i = 0; i < listeners.size(); i++) { 95 listeners.get(i).onItemsChanged(); 96 } 97 } 98 99 @Override unbind()100 void unbind() { 101 super.unbind(); 102 listeners.clear(); 103 } 104 105 interface FolderListener { onAdd(ShortcutInfo item)106 public void onAdd(ShortcutInfo item); onRemove(ShortcutInfo item)107 public void onRemove(ShortcutInfo item); onTitleChanged(CharSequence title)108 public void onTitleChanged(CharSequence title); onItemsChanged()109 public void onItemsChanged(); 110 } 111 } 112