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 package com.android.launcher3.widget.picker;
17 
18 import android.graphics.Bitmap;
19 import android.util.Pair;
20 import android.view.View;
21 
22 import androidx.recyclerview.widget.RecyclerView.ViewHolder;
23 
24 import com.android.launcher3.R;
25 import com.android.launcher3.model.WidgetItem;
26 
27 import java.util.HashMap;
28 import java.util.Map;
29 import java.util.function.Consumer;
30 
31 /** A {@link ViewHolder} for showing widgets of an app in the full widget picker. */
32 public final class WidgetsRowViewHolder extends ViewHolder {
33 
34     public final WidgetsListTableView tableContainer;
35     public final Map<WidgetItem, Bitmap> previewCache = new HashMap<>();
36     Consumer<Pair<WidgetItem, Bitmap>> mDataCallback;
37 
WidgetsRowViewHolder(View v)38     public WidgetsRowViewHolder(View v) {
39         super(v);
40 
41         tableContainer = v.findViewById(R.id.widgets_table);
42     }
43 
44     /**
45      * When the preview is loaded we callback to notify that the preview loaded and we rebind the
46      * view.
47      *
48      * @param data is the payload which is needed when binding the view.
49      */
onPreviewLoaded(Pair<WidgetItem, Bitmap> data)50     public void onPreviewLoaded(Pair<WidgetItem, Bitmap> data) {
51         if (mDataCallback != null) {
52             mDataCallback.accept(data);
53         }
54         if (getBindingAdapter() != null) {
55             getBindingAdapter().notifyItemChanged(getBindingAdapterPosition(), data);
56         }
57     }
58 }
59