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/*
* Copyright (C) 2011 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.ide.common.rendering.api;
import com.android.resources.ResourceType;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
/**
* A data binding item. It contain a {@link ResourceReference} to the view used to represent it.
* It also contains how many items of this type the AdapterView should display.
*
* It can also contain an optional list of children in case the AdapterView is an
* ExpandableListView. In this case, the count value is used as a repeat count for the children,
* similar to {@link AdapterBinding#getRepeatCount()}.
*
*/
public class DataBindingItem implements Iterable<DataBindingItem> {
private final ResourceReference mReference;
private final int mCount;
private List<DataBindingItem> mChildren;
public DataBindingItem(ResourceReference reference, int count) {
mReference = reference;
mCount = count;
}
public DataBindingItem(String name, boolean platformLayout, int count) {
this(new ResourceReference(name, platformLayout), count);
}
public DataBindingItem(String name, boolean platformLayout) {
this(name, platformLayout, 1);
}
public DataBindingItem(String name, int count) {
this(name, false /*platformLayout*/, count);
}
public DataBindingItem(String name) {
this(name, false /*platformLayout*/, 1);
}
/**
* Returns the {@link ResourceReference} for the view. The {@link ResourceType} for the
* referenced resource is implied to be {@link ResourceType#LAYOUT}.
*/
public ResourceReference getViewReference() {
return mReference;
}
/**
* The repeat count for this object or the repeat count for the children if there are any.
*/
public int getCount() {
return mCount;
}
public void addChild(DataBindingItem child) {
if (mChildren == null) {
mChildren = new ArrayList<DataBindingItem>();
}
mChildren.add(child);
}
public List<DataBindingItem> getChildren() {
if (mChildren != null) {
return mChildren;
}
return Collections.emptyList();
}
@Override
public Iterator<DataBindingItem> iterator() {
List<DataBindingItem> list = getChildren();
return list.iterator();
}
}
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