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 */
16package android.databinding.adapters;
17
18import android.databinding.BindingAdapter;
19import android.databinding.InverseBindingListener;
20import android.databinding.InverseBindingMethod;
21import android.databinding.InverseBindingMethods;
22import android.widget.RatingBar;
23import android.widget.RatingBar.OnRatingBarChangeListener;
24
25@InverseBindingMethods({
26        @InverseBindingMethod(type = RatingBar.class, attribute = "android:rating"),
27})
28public class RatingBarBindingAdapter {
29    @BindingAdapter("android:rating")
30    public static void setRating(RatingBar view, float rating) {
31        if (view.getRating() != rating) {
32            view.setRating(rating);
33        }
34    }
35
36    @BindingAdapter(value = {"android:onRatingChanged", "android:ratingAttrChanged"},
37            requireAll = false)
38    public static void setListeners(RatingBar view, final OnRatingBarChangeListener listener,
39            final InverseBindingListener ratingChange) {
40        if (ratingChange == null) {
41            view.setOnRatingBarChangeListener(listener);
42        } else {
43            view.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
44                @Override
45                public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
46                    if (listener != null) {
47                        listener.onRatingChanged(ratingBar, rating, fromUser);
48                    }
49                    ratingChange.onChange();
50                }
51            });
52        }
53    }
54}
55