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The Android Open Source Project7376fae2009-03-11 12:11:58 -07001/*
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
Daniel Sandler325dc232013-06-05 22:57:57 -040017package com.android.launcher3;
The Android Open Source Project7376fae2009-03-11 12:11:58 -070018
19import android.appwidget.AppWidgetHost;
20import android.appwidget.AppWidgetHostView;
21import android.appwidget.AppWidgetProviderInfo;
22import android.content.Context;
Sunny Goyal712ee532016-11-04 10:19:58 -070023import android.util.SparseArray;
Adam Cohen59400422014-03-05 18:07:04 -080024import android.view.LayoutInflater;
The Android Open Source Project7376fae2009-03-11 12:11:58 -070025
Sunny Goyal0fc1be12014-08-11 17:05:23 -070026import java.util.ArrayList;
27
Adam Cohen59400422014-03-05 18:07:04 -080028
The Android Open Source Project7376fae2009-03-11 12:11:58 -070029/**
30 * Specific {@link AppWidgetHost} that creates our {@link LauncherAppWidgetHostView}
31 * which correctly captures all long-press events. This ensures that users can
32 * always pick up and move widgets.
33 */
34public class LauncherAppWidgetHost extends AppWidgetHost {
Winson Chunga3f78e32012-06-14 11:59:51 -070035
Sunny Goyal0fc1be12014-08-11 17:05:23 -070036 private final ArrayList<Runnable> mProviderChangeListeners = new ArrayList<Runnable>();
Sunny Goyal712ee532016-11-04 10:19:58 -070037 private final SparseArray<LauncherAppWidgetHostView> mViews = new SparseArray<>();
Sunny Goyal0fc1be12014-08-11 17:05:23 -070038
Sunny Goyal8d595092015-07-06 12:22:14 -070039 private Launcher mLauncher;
Winson Chunga3f78e32012-06-14 11:59:51 -070040
41 public LauncherAppWidgetHost(Launcher launcher, int hostId) {
42 super(launcher, hostId);
43 mLauncher = launcher;
The Android Open Source Project7376fae2009-03-11 12:11:58 -070044 }
Adam Cohen9415d872010-09-13 14:49:43 -070045
The Android Open Source Project7376fae2009-03-11 12:11:58 -070046 @Override
Sunny Goyal712ee532016-11-04 10:19:58 -070047 protected LauncherAppWidgetHostView onCreateView(Context context, int appWidgetId,
The Android Open Source Project7376fae2009-03-11 12:11:58 -070048 AppWidgetProviderInfo appWidget) {
Sunny Goyal712ee532016-11-04 10:19:58 -070049 LauncherAppWidgetHostView view = new LauncherAppWidgetHostView(context);
50 mViews.put(appWidgetId, view);
51 return view;
The Android Open Source Project7376fae2009-03-11 12:11:58 -070052 }
Patrick Dubroy2313eff2011-01-11 20:01:31 -080053
54 @Override
Adam Cohen084c3182014-06-16 15:22:56 -070055 public void startListening() {
56 try {
57 super.startListening();
58 } catch (Exception e) {
Sunny Goyal712ee532016-11-04 10:19:58 -070059 if (!Utilities.isBinderSizeError(e)) {
Adam Cohen084c3182014-06-16 15:22:56 -070060 throw new RuntimeException(e);
61 }
Sunny Goyal712ee532016-11-04 10:19:58 -070062 // We're willing to let this slide. The exception is being caused by the list of
63 // RemoteViews which is being passed back. The startListening relationship will
64 // have been established by this point, and we will end up populating the
65 // widgets upon bind anyway. See issue 14255011 for more context.
Adam Cohen084c3182014-06-16 15:22:56 -070066 }
67 }
68
Sunny Goyal0fc1be12014-08-11 17:05:23 -070069 public void addProviderChangeListener(Runnable callback) {
70 mProviderChangeListeners.add(callback);
71 }
72
73 public void removeProviderChangeListener(Runnable callback) {
74 mProviderChangeListeners.remove(callback);
75 }
76
Winson Chunga3f78e32012-06-14 11:59:51 -070077 protected void onProvidersChanged() {
Sunny Goyal7e2a3602015-04-20 18:19:25 -070078 if (!mProviderChangeListeners.isEmpty()) {
79 for (Runnable callback : new ArrayList<>(mProviderChangeListeners)) {
80 callback.run();
81 }
Sunny Goyal0fc1be12014-08-11 17:05:23 -070082 }
Sunny Goyal2e1efb42016-03-03 16:58:55 -080083
84 if (Utilities.ATLEAST_MARSHMALLOW) {
85 mLauncher.notifyWidgetProvidersChanged();
86 }
Winson Chunga3f78e32012-06-14 11:59:51 -070087 }
Adam Cohen59400422014-03-05 18:07:04 -080088
89 public AppWidgetHostView createView(Context context, int appWidgetId,
90 LauncherAppWidgetProviderInfo appWidget) {
91 if (appWidget.isCustomWidget) {
92 LauncherAppWidgetHostView lahv = new LauncherAppWidgetHostView(context);
93 LayoutInflater inflater = (LayoutInflater)
94 context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
95 inflater.inflate(appWidget.initialLayout, lahv);
96 lahv.setAppWidget(0, appWidget);
97 lahv.updateLastInflationOrientation();
98 return lahv;
99 } else {
Sunny Goyal712ee532016-11-04 10:19:58 -0700100 try {
101 return super.createView(context, appWidgetId, appWidget);
102 } catch (Exception e) {
103 if (!Utilities.isBinderSizeError(e)) {
104 throw new RuntimeException(e);
105 }
106
107 // If the exception was thrown while fetching the remote views, let the view stay.
108 // This will ensure that if the widget posts a valid update later, the view
109 // will update.
110 LauncherAppWidgetHostView view = mViews.get(appWidgetId);
111 if (view == null) {
112 view = onCreateView(mLauncher, appWidgetId, appWidget);
113 }
114 view.setAppWidget(appWidgetId, appWidget);
115 view.switchToErrorView();
116 return view;
117 }
Adam Cohen59400422014-03-05 18:07:04 -0800118 }
119 }
120
121 /**
122 * Called when the AppWidget provider for a AppWidget has been upgraded to a new apk.
123 */
124 @Override
125 protected void onProviderChanged(int appWidgetId, AppWidgetProviderInfo appWidget) {
126 LauncherAppWidgetProviderInfo info = LauncherAppWidgetProviderInfo.fromProviderInfo(
127 mLauncher, appWidget);
128 super.onProviderChanged(appWidgetId, info);
Sunny Goyalec882042015-10-05 10:36:54 -0700129 // The super method updates the dimensions of the providerInfo. Update the
130 // launcher spans accordingly.
131 info.initSpans();
Adam Cohen59400422014-03-05 18:07:04 -0800132 }
Sunny Goyal712ee532016-11-04 10:19:58 -0700133
134 @Override
135 public void deleteAppWidgetId(int appWidgetId) {
136 super.deleteAppWidgetId(appWidgetId);
137 mViews.remove(appWidgetId);
138 }
139
140 @Override
141 protected void clearViews() {
142 super.clearViews();
143 mViews.clear();
144 }
The Android Open Source Project7376fae2009-03-11 12:11:58 -0700145}