diff options
Diffstat (limited to 'src/com/android/gallery3d/ingest/adapter/CheckBroker.java')
-rw-r--r-- | src/com/android/gallery3d/ingest/adapter/CheckBroker.java | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/ingest/adapter/CheckBroker.java b/src/com/android/gallery3d/ingest/adapter/CheckBroker.java new file mode 100644 index 000000000..6783f23c5 --- /dev/null +++ b/src/com/android/gallery3d/ingest/adapter/CheckBroker.java @@ -0,0 +1,56 @@ +/* + * 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); + } +} |