/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3;
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import android.os.Process;
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import com.android.launcher3.model.ModelWriter;
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import com.android.launcher3.util.ContentWriter;
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import java.util.ArrayList;
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/**
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* Represents a folder containing shortcuts or apps.
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*/
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public class FolderInfo extends ItemInfo {
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public static final int NO_FLAGS = 0x00000000;
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/**
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* The folder is locked in sorted mode
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*/
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public static final int FLAG_ITEMS_SORTED = 0x00000001;
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/**
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* It is a work folder
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*/
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public static final int FLAG_WORK_FOLDER = 0x00000002;
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/**
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* The multi-page animation has run for this folder
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*/
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public static final int FLAG_MULTI_PAGE_ANIMATION = 0x00000004;
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public int options;
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/**
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* The apps and shortcuts
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*/
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public ArrayList<WorkspaceItemInfo> contents = new ArrayList<WorkspaceItemInfo>();
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ArrayList<FolderListener> listeners = new ArrayList<FolderListener>();
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public FolderInfo() {
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itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER;
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user = Process.myUserHandle();
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}
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/**
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* Add an app or shortcut
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*
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* @param item
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*/
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public void add(WorkspaceItemInfo item, boolean animate) {
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add(item, contents.size(), animate);
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}
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/**
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* Add an app or shortcut for a specified rank.
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*/
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public void add(WorkspaceItemInfo item, int rank, boolean animate) {
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rank = Utilities.boundToRange(rank, 0, contents.size());
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contents.add(rank, item);
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for (int i = 0; i < listeners.size(); i++) {
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listeners.get(i).onAdd(item, rank);
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}
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itemsChanged(animate);
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}
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/**
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* Remove an app or shortcut. Does not change the DB.
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*
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* @param item
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*/
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public void remove(WorkspaceItemInfo item, boolean animate) {
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contents.remove(item);
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for (int i = 0; i < listeners.size(); i++) {
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listeners.get(i).onRemove(item);
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}
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itemsChanged(animate);
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}
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public void setTitle(CharSequence title) {
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this.title = title;
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for (int i = 0; i < listeners.size(); i++) {
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listeners.get(i).onTitleChanged(title);
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}
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}
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@Override
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public void onAddToDatabase(ContentWriter writer) {
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super.onAddToDatabase(writer);
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writer.put(LauncherSettings.Favorites.TITLE, title)
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.put(LauncherSettings.Favorites.OPTIONS, options);
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}
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public void addListener(FolderListener listener) {
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listeners.add(listener);
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}
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public void removeListener(FolderListener listener) {
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listeners.remove(listener);
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}
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public void itemsChanged(boolean animate) {
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for (int i = 0; i < listeners.size(); i++) {
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listeners.get(i).onItemsChanged(animate);
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}
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}
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public void prepareAutoUpdate() {
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for (int i = 0; i < listeners.size(); i++) {
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listeners.get(i).prepareAutoUpdate();
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}
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}
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public interface FolderListener {
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public void onAdd(WorkspaceItemInfo item, int rank);
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public void onRemove(WorkspaceItemInfo item);
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public void onTitleChanged(CharSequence title);
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public void onItemsChanged(boolean animate);
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public void prepareAutoUpdate();
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}
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public boolean hasOption(int optionFlag) {
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return (options & optionFlag) != 0;
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}
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/**
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* @param option flag to set or clear
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* @param isEnabled whether to set or clear the flag
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* @param writer if not null, save changes to the db.
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*/
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public void setOption(int option, boolean isEnabled, ModelWriter writer) {
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int oldOptions = options;
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if (isEnabled) {
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options |= option;
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} else {
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options &= ~option;
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}
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if (writer != null && oldOptions != options) {
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writer.updateItemInDatabase(this);
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}
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}
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}
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