1 /* 2 * Copyright (C) 2016 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 android.appwidget; 18 19 import android.os.Parcel; 20 import android.os.Parcelable; 21 import android.widget.RemoteViews; 22 23 /** 24 * @hide 25 */ 26 public class PendingHostUpdate implements Parcelable { 27 28 static final int TYPE_VIEWS_UPDATE = 0; 29 static final int TYPE_PROVIDER_CHANGED = 1; 30 static final int TYPE_VIEW_DATA_CHANGED = 2; 31 32 final int appWidgetId; 33 final int type; 34 RemoteViews views; 35 AppWidgetProviderInfo widgetInfo; 36 int viewId; 37 updateAppWidget(int appWidgetId, RemoteViews views)38 public static PendingHostUpdate updateAppWidget(int appWidgetId, RemoteViews views) { 39 PendingHostUpdate update = new PendingHostUpdate(appWidgetId, TYPE_VIEWS_UPDATE); 40 update.views = views; 41 return update; 42 } 43 providerChanged(int appWidgetId, AppWidgetProviderInfo info)44 public static PendingHostUpdate providerChanged(int appWidgetId, AppWidgetProviderInfo info) { 45 PendingHostUpdate update = new PendingHostUpdate(appWidgetId, TYPE_PROVIDER_CHANGED); 46 update.widgetInfo = info; 47 return update; 48 } 49 viewDataChanged(int appWidgetId, int viewId)50 public static PendingHostUpdate viewDataChanged(int appWidgetId, int viewId) { 51 PendingHostUpdate update = new PendingHostUpdate(appWidgetId, TYPE_VIEW_DATA_CHANGED); 52 update.viewId = viewId; 53 return update; 54 } 55 PendingHostUpdate(int appWidgetId, int type)56 private PendingHostUpdate(int appWidgetId, int type) { 57 this.appWidgetId = appWidgetId; 58 this.type = type; 59 } 60 PendingHostUpdate(Parcel in)61 private PendingHostUpdate(Parcel in) { 62 appWidgetId = in.readInt(); 63 type = in.readInt(); 64 65 switch (type) { 66 case TYPE_VIEWS_UPDATE: 67 if (0 != in.readInt()) { 68 views = new RemoteViews(in); 69 } 70 break; 71 case TYPE_PROVIDER_CHANGED: 72 if (0 != in.readInt()) { 73 widgetInfo = new AppWidgetProviderInfo(in); 74 } 75 break; 76 case TYPE_VIEW_DATA_CHANGED: 77 viewId = in.readInt(); 78 } 79 } 80 81 @Override describeContents()82 public int describeContents() { 83 return 0; 84 } 85 86 @Override writeToParcel(Parcel dest, int flags)87 public void writeToParcel(Parcel dest, int flags) { 88 dest.writeInt(appWidgetId); 89 dest.writeInt(type); 90 switch (type) { 91 case TYPE_VIEWS_UPDATE: 92 writeNullParcelable(views, dest, flags); 93 break; 94 case TYPE_PROVIDER_CHANGED: 95 writeNullParcelable(widgetInfo, dest, flags); 96 break; 97 case TYPE_VIEW_DATA_CHANGED: 98 dest.writeInt(viewId); 99 break; 100 } 101 } 102 writeNullParcelable(Parcelable p, Parcel dest, int flags)103 private void writeNullParcelable(Parcelable p, Parcel dest, int flags) { 104 if (p != null) { 105 dest.writeInt(1); 106 p.writeToParcel(dest, flags); 107 } else { 108 dest.writeInt(0); 109 } 110 } 111 112 /** 113 * Parcelable.Creator that instantiates PendingHostUpdate objects 114 */ 115 public static final Parcelable.Creator<PendingHostUpdate> CREATOR 116 = new Parcelable.Creator<PendingHostUpdate>() { 117 public PendingHostUpdate createFromParcel(Parcel parcel) { 118 return new PendingHostUpdate(parcel); 119 } 120 121 public PendingHostUpdate[] newArray(int size) { 122 return new PendingHostUpdate[size]; 123 } 124 }; 125 } 126