Sunny Goyal | 6d1b41d | 2016-05-11 18:22:20 -0700 | [diff] [blame] | 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 | |
| 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 | |
| 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 | |
| 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 | |
| 56 | private PendingHostUpdate(int appWidgetId, int type) { |
| 57 | this.appWidgetId = appWidgetId; |
| 58 | this.type = type; |
| 59 | } |
| 60 | |
| 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 |
| 82 | public int describeContents() { |
| 83 | return 0; |
| 84 | } |
| 85 | |
| 86 | @Override |
| 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 | |
| 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 | } |