1 /* 2 * Copyright (C) 2009 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 17 package com.android.launcher3.widget; 18 19 import android.appwidget.AppWidgetHost; 20 import android.appwidget.AppWidgetProviderInfo; 21 import android.content.Context; 22 23 import androidx.annotation.NonNull; 24 import androidx.annotation.Nullable; 25 import androidx.annotation.VisibleForTesting; 26 27 /** 28 * Specific {@link AppWidgetHost} that creates our {@link LauncherAppWidgetHostView} 29 * which correctly captures all long-press events. This ensures that users can 30 * always pick up and move widgets. 31 */ 32 class LauncherAppWidgetHost extends ListenableAppWidgetHost { 33 34 @Nullable 35 private ListenableHostView mViewToRecycle; 36 LauncherAppWidgetHost(@onNull Context context, int appWidgetId)37 LauncherAppWidgetHost(@NonNull Context context, int appWidgetId) { 38 super(context, appWidgetId); 39 } 40 41 /** 42 * Sets the view to be recycled for the next widget creation. 43 */ recycleViewForNextCreation(ListenableHostView viewToRecycle)44 public void recycleViewForNextCreation(ListenableHostView viewToRecycle) { 45 mViewToRecycle = viewToRecycle; 46 } 47 48 @VisibleForTesting getViewToRecycle()49 @Nullable ListenableHostView getViewToRecycle() { 50 return mViewToRecycle; 51 } 52 53 @Override 54 @NonNull onCreateView(Context context, int appWidgetId, AppWidgetProviderInfo appWidget)55 public LauncherAppWidgetHostView onCreateView(Context context, int appWidgetId, 56 AppWidgetProviderInfo appWidget) { 57 ListenableHostView result = 58 mViewToRecycle != null ? mViewToRecycle : new ListenableHostView(context); 59 mViewToRecycle = null; 60 return result; 61 } 62 63 /** 64 * The same as super.clearViews(), except with the scope exposed 65 */ 66 @Override clearViews()67 public void clearViews() { 68 super.clearViews(); 69 } 70 } 71