| /* |
| * Copyright (C) 2013 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.gallery3d.ingest.adapter; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| public abstract class CheckBroker { |
| private Collection<OnCheckedChangedListener> mListeners = |
| new ArrayList<OnCheckedChangedListener>(); |
| |
| public interface OnCheckedChangedListener { |
| public void onCheckedChanged(int position, boolean isChecked); |
| public void onBulkCheckedChanged(); |
| } |
| |
| public abstract void setItemChecked(int position, boolean checked); |
| |
| public void onCheckedChange(int position, boolean checked) { |
| if (isItemChecked(position) != checked) { |
| for (OnCheckedChangedListener l : mListeners) { |
| l.onCheckedChanged(position, checked); |
| } |
| } |
| } |
| |
| public void onBulkCheckedChange() { |
| for (OnCheckedChangedListener l : mListeners) { |
| l.onBulkCheckedChanged(); |
| } |
| } |
| |
| public abstract boolean isItemChecked(int position); |
| |
| public void registerOnCheckedChangeListener(OnCheckedChangedListener l) { |
| mListeners.add(l); |
| } |
| |
| public void unregisterOnCheckedChangeListener(OnCheckedChangedListener l) { |
| mListeners.remove(l); |
| } |
| } |