1/*
2 * Copyright 2017 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 */
16package androidx.leanback.widget;
17
18import android.text.TextUtils;
19
20import androidx.annotation.NonNull;
21
22/**
23 * DiffCallback used for GuidedActions, see {@link
24 * androidx.leanback.app.GuidedStepSupportFragment#setActionsDiffCallback(DiffCallback)}.
25 */
26public class GuidedActionDiffCallback extends DiffCallback<GuidedAction> {
27
28    static final GuidedActionDiffCallback sInstance = new GuidedActionDiffCallback();
29
30    /**
31     * Returns the singleton GuidedActionDiffCallback.
32     * @return The singleton GuidedActionDiffCallback.
33     */
34    public static GuidedActionDiffCallback getInstance() {
35        return sInstance;
36    }
37
38    @Override
39    public boolean areItemsTheSame(@NonNull GuidedAction oldItem, @NonNull GuidedAction newItem) {
40        if (oldItem == null) {
41            return newItem == null;
42        } else if (newItem == null) {
43            return false;
44        }
45        return oldItem.getId() == newItem.getId();
46    }
47
48    @Override
49    public boolean areContentsTheSame(@NonNull GuidedAction oldItem,
50            @NonNull GuidedAction newItem) {
51        if (oldItem == null) {
52            return newItem == null;
53        } else if (newItem == null) {
54            return false;
55        }
56        return oldItem.getCheckSetId() == newItem.getCheckSetId()
57                && oldItem.mActionFlags == newItem.mActionFlags
58                && TextUtils.equals(oldItem.getTitle(), newItem.getTitle())
59                && TextUtils.equals(oldItem.getDescription(), newItem.getDescription())
60                && oldItem.getInputType() == newItem.getInputType()
61                && TextUtils.equals(oldItem.getEditTitle(), newItem.getEditTitle())
62                && TextUtils.equals(oldItem.getEditDescription(), newItem.getEditDescription())
63                && oldItem.getEditInputType() == newItem.getEditInputType()
64                && oldItem.getDescriptionEditInputType() == newItem.getDescriptionEditInputType();
65    }
66}
67