1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
15 */
16
17package com.android.setupwizardlib.items;
18
19import android.content.Context;
20
21/**
22 * Inflate {@link Item} hierarchies from XML files.
23 *
24 * Modified from android.support.v7.preference.PreferenceInflater
25 */
26public class ItemInflater extends GenericInflater<ItemHierarchy> {
27
28    private static final String TAG = "ItemInflater";
29
30    public interface ItemParent {
31        void addChild(ItemHierarchy child);
32    }
33
34    private final Context mContext;
35
36    public ItemInflater(Context context) {
37        super(context);
38        mContext = context;
39        setDefaultPackage(Item.class.getPackage().getName() + ".");
40    }
41
42    @Override
43    public ItemInflater cloneInContext(Context newContext) {
44        return new ItemInflater(newContext);
45    }
46
47    /**
48     * Return the context we are running in, for access to resources, class
49     * loader, etc.
50     */
51    @Override
52    public Context getContext() {
53        return mContext;
54    }
55
56    @Override
57    protected void onAddChildItem(ItemHierarchy parent, ItemHierarchy child) {
58        if (parent instanceof ItemParent) {
59            ((ItemParent) parent).addChild(child);
60        } else {
61            throw new IllegalArgumentException("Cannot add child item to " + parent);
62        }
63    }
64}
65