| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.launcher3; |
| |
| import android.appwidget.AppWidgetHost; |
| import android.appwidget.AppWidgetHostView; |
| import android.appwidget.AppWidgetProviderInfo; |
| import android.content.Context; |
| import android.os.TransactionTooLargeException; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * Specific {@link AppWidgetHost} that creates our {@link LauncherAppWidgetHostView} |
| * which correctly captures all long-press events. This ensures that users can |
| * always pick up and move widgets. |
| */ |
| public class LauncherAppWidgetHost extends AppWidgetHost { |
| |
| private final ArrayList<Runnable> mProviderChangeListeners = new ArrayList<Runnable>(); |
| |
| Launcher mLauncher; |
| |
| public LauncherAppWidgetHost(Launcher launcher, int hostId) { |
| super(launcher, hostId); |
| mLauncher = launcher; |
| } |
| |
| @Override |
| protected AppWidgetHostView onCreateView(Context context, int appWidgetId, |
| AppWidgetProviderInfo appWidget) { |
| return new LauncherAppWidgetHostView(context); |
| } |
| |
| @Override |
| public void startListening() { |
| try { |
| super.startListening(); |
| } catch (Exception e) { |
| if (e.getCause() instanceof TransactionTooLargeException) { |
| // We're willing to let this slide. The exception is being caused by the list of |
| // RemoteViews which is being passed back. The startListening relationship will |
| // have been established by this point, and we will end up populating the |
| // widgets upon bind anyway. See issue 14255011 for more context. |
| } else { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| @Override |
| public void stopListening() { |
| super.stopListening(); |
| clearViews(); |
| } |
| |
| public void addProviderChangeListener(Runnable callback) { |
| mProviderChangeListeners.add(callback); |
| } |
| |
| public void removeProviderChangeListener(Runnable callback) { |
| mProviderChangeListeners.remove(callback); |
| } |
| |
| protected void onProvidersChanged() { |
| // Once we get the message that widget packages are updated, we need to rebind items |
| // in AppsCustomize accordingly. |
| mLauncher.bindPackagesUpdated(LauncherModel.getSortedWidgetsAndShortcuts(mLauncher)); |
| |
| for (Runnable callback : mProviderChangeListeners) { |
| callback.run(); |
| } |
| } |
| } |