/*
* Copyright (C) 2008 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.launcher2;
import java.util.ArrayList;
import android.content.ContentValues;
/**
* Represents a folder containing shortcuts or apps.
*/
class FolderInfo extends ItemInfo {
/**
* Whether this folder has been opened
*/
boolean opened;
/**
* The apps and shortcuts
*/
ArrayList<ShortcutInfo> contents = new ArrayList<ShortcutInfo>();
ArrayList<FolderListener> listeners = new ArrayList<FolderListener>();
FolderInfo() {
itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER;
}
/**
* Add an app or shortcut
*
* @param item
*/
public void add(ShortcutInfo item) {
contents.add(item);
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onAdd(item);
}
itemsChanged();
}
/**
* Remove an app or shortcut. Does not change the DB.
*
* @param item
*/
public void remove(ShortcutInfo item) {
contents.remove(item);
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onRemove(item);
}
itemsChanged();
}
public void setTitle(CharSequence title) {
this.title = title;
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onTitleChanged(title);
}
}
@Override
void onAddToDatabase(ContentValues values) {
super.onAddToDatabase(values);
values.put(LauncherSettings.Favorites.TITLE, title.toString());
}
void addListener(FolderListener listener) {
listeners.add(listener);
}
void removeListener(FolderListener listener) {
if (listeners.contains(listener)) {
listeners.remove(listener);
}
}
void itemsChanged() {
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onItemsChanged();
}
}
@Override
void unbind() {
super.unbind();
listeners.clear();
}
interface FolderListener {
public void onAdd(ShortcutInfo item);
public void onRemove(ShortcutInfo item);
public void onTitleChanged(CharSequence title);
public void onItemsChanged();
}
}