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/*
* 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.launcher3;
import android.os.Process;
import com.android.launcher3.model.ModelWriter;
import com.android.launcher3.util.ContentWriter;
import java.util.ArrayList;
/**
* Represents a folder containing shortcuts or apps.
*/
public class FolderInfo extends ItemInfo {
public static final int NO_FLAGS = 0x00000000;
/**
* The folder is locked in sorted mode
*/
public static final int FLAG_ITEMS_SORTED = 0x00000001;
/**
* It is a work folder
*/
public static final int FLAG_WORK_FOLDER = 0x00000002;
/**
* The multi-page animation has run for this folder
*/
public static final int FLAG_MULTI_PAGE_ANIMATION = 0x00000004;
public int options;
/**
* The apps and shortcuts
*/
public ArrayList<WorkspaceItemInfo> contents = new ArrayList<WorkspaceItemInfo>();
ArrayList<FolderListener> listeners = new ArrayList<FolderListener>();
public FolderInfo() {
itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER;
user = Process.myUserHandle();
}
/**
* Add an app or shortcut
*
* @param item
*/
public void add(WorkspaceItemInfo item, boolean animate) {
add(item, contents.size(), animate);
}
/**
* Add an app or shortcut for a specified rank.
*/
public void add(WorkspaceItemInfo item, int rank, boolean animate) {
rank = Utilities.boundToRange(rank, 0, contents.size());
contents.add(rank, item);
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onAdd(item, rank);
}
itemsChanged(animate);
}
/**
* Remove an app or shortcut. Does not change the DB.
*
* @param item
*/
public void remove(WorkspaceItemInfo item, boolean animate) {
contents.remove(item);
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onRemove(item);
}
itemsChanged(animate);
}
public void setTitle(CharSequence title) {
this.title = title;
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onTitleChanged(title);
}
}
@Override
public void onAddToDatabase(ContentWriter writer) {
super.onAddToDatabase(writer);
writer.put(LauncherSettings.Favorites.TITLE, title)
.put(LauncherSettings.Favorites.OPTIONS, options);
}
public void addListener(FolderListener listener) {
listeners.add(listener);
}
public void removeListener(FolderListener listener) {
listeners.remove(listener);
}
public void itemsChanged(boolean animate) {
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).onItemsChanged(animate);
}
}
public void prepareAutoUpdate() {
for (int i = 0; i < listeners.size(); i++) {
listeners.get(i).prepareAutoUpdate();
}
}
public interface FolderListener {
public void onAdd(WorkspaceItemInfo item, int rank);
public void onRemove(WorkspaceItemInfo item);
public void onTitleChanged(CharSequence title);
public void onItemsChanged(boolean animate);
public void prepareAutoUpdate();
}
public boolean hasOption(int optionFlag) {
return (options & optionFlag) != 0;
}
/**
* @param option flag to set or clear
* @param isEnabled whether to set or clear the flag
* @param writer if not null, save changes to the db.
*/
public void setOption(int option, boolean isEnabled, ModelWriter writer) {
int oldOptions = options;
if (isEnabled) {
options |= option;
} else {
options &= ~option;
}
if (writer != null && oldOptions != options) {
writer.updateItemInDatabase(this);
}
}
}
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