WidgetProvider.java revision 44f5cd67c97da6a5c7e63a73b4dca7057b83cdbb 
1/*
2 * Copyright (C) 2010 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
17package com.android.email.provider;
18
19import com.android.email.Email;
20import com.android.email.widget.EmailWidget;
21import com.android.email.widget.WidgetManager;
22
23import android.app.Service;
24import android.appwidget.AppWidgetManager;
25import android.appwidget.AppWidgetProvider;
26import android.content.Context;
27import android.content.Intent;
28import android.util.Log;
29import android.widget.RemoteViewsService;
30
31import java.io.FileDescriptor;
32import java.io.PrintWriter;
33
34public class WidgetProvider extends AppWidgetProvider {
35    @Override
36    public void onEnabled(final Context context) {
37        if (Email.DEBUG) {
38            Log.d(EmailWidget.TAG, "onEnabled");
39        }
40        super.onEnabled(context);
41    }
42
43    @Override
44    public void onDisabled(Context context) {
45        if (Email.DEBUG) {
46            Log.d(EmailWidget.TAG, "onDisabled");
47        }
48        context.stopService(new Intent(context, WidgetService.class));
49        super.onDisabled(context);
50    }
51
52    @Override
53    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
54        if (Email.DEBUG) {
55            Log.d(EmailWidget.TAG, "onUpdate");
56        }
57        super.onUpdate(context, appWidgetManager, appWidgetIds);
58        WidgetManager.getInstance().createWidgets(context, appWidgetIds);
59    }
60
61    @Override
62    public void onDeleted(Context context, int[] appWidgetIds) {
63        if (Email.DEBUG) {
64            Log.d(EmailWidget.TAG, "onDeleted");
65        }
66        WidgetManager.getInstance().deleteWidgets(context, appWidgetIds);
67        super.onDeleted(context, appWidgetIds);
68    }
69
70    @Override
71    public void onReceive(final Context context, Intent intent) {
72        if (Email.DEBUG) {
73            Log.d(EmailWidget.TAG, "onReceive");
74        }
75        super.onReceive(context, intent);
76    }
77
78    /**
79     * We use the WidgetService for two purposes:
80     *  1) To provide a widget factory for RemoteViews, and
81     *  2) Catch our command Uri's (i.e. take actions on user clicks) and let EmailWidget
82     *     handle them.
83     */
84    public static class WidgetService extends RemoteViewsService {
85        @Override
86        public RemoteViewsFactory onGetViewFactory(Intent intent) {
87            // Which widget do we want (nice alliteration, huh?)
88            int widgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
89            if (widgetId == -1) return null;
90            // Find the existing widget or create it
91            return WidgetManager.getInstance().getOrCreateWidget(this, widgetId);
92        }
93
94        @Override
95        public int onStartCommand(Intent intent, int flags, int startId) {
96            if (intent.getData() != null) {
97                // EmailWidget creates intents, so it knows how to handle them.
98                EmailWidget.processIntent(this, intent);
99            }
100            return Service.START_NOT_STICKY;
101        }
102
103        @Override
104        protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
105            WidgetManager.getInstance().dump(fd, writer, args);
106        }
107    }
108 }
109