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.exchange;
18
19import com.android.emailcommon.Logging;
20
21import android.accounts.Account;
22import android.accounts.AccountManager;
23import android.app.Notification;
24import android.app.NotificationManager;
25import android.app.PendingIntent;
26import android.content.ContentResolver;
27import android.content.Context;
28import android.content.Intent;
29import android.net.Uri;
30import android.provider.CalendarContract;
31import android.util.Log;
32
33/**
34 * Utility class to enable Exchange calendar sync for all existing Exchange accounts.
35 *
36 * <p>Exchange calendar was first supported on Froyo.  It wasn't supported on Eclair, which
37 * was the first version that supported Exchange email.
38 *
39 * <p>This class is used only once when the devices is upgraded to Froyo (or later) from Eclair,
40 * to enable calendar sync for all the existing Exchange accounts.
41 */
42public class CalendarSyncEnabler {
43    private final Context mContext;
44
45    public CalendarSyncEnabler(Context context) {
46        this.mContext = context;
47    }
48
49    /**
50     * Enable calendar sync for all the existing exchange accounts, and post a notification if any.
51     */
52    public final void enableEasCalendarSync() {
53        String emailAddresses = enableEasCalendarSyncInternalForTest();
54        if (emailAddresses.length() > 0) {
55            // Exchange account(s) found.
56            showNotificationForTest(emailAddresses.toString());
57        }
58    }
59
60    /**
61     * Enable calendar sync for all the existing exchange accounts
62     *
63     * @return email addresses of the Exchange accounts joined with spaces as delimiters,
64     *     or the empty string if there's no Exchange accounts.
65     */
66    /* package for testing */ final String enableEasCalendarSyncInternalForTest() {
67        StringBuilder emailAddresses = new StringBuilder();
68
69        Account[] exchangeAccounts = AccountManager.get(mContext)
70                .getAccountsByType(Eas.EXCHANGE_ACCOUNT_MANAGER_TYPE);
71        for (Account account : exchangeAccounts) {
72            final String emailAddress = account.name;
73            Log.i(Logging.LOG_TAG, "Enabling Exchange calendar sync for " + emailAddress);
74
75            ContentResolver.setIsSyncable(account, CalendarContract.AUTHORITY, 1);
76            ContentResolver.setSyncAutomatically(account, CalendarContract.AUTHORITY, true);
77
78            // Accumulate addresses for notification.
79            if (emailAddresses.length() > 0) {
80                emailAddresses.append(' ');
81            }
82            emailAddresses.append(emailAddress);
83        }
84        return emailAddresses.toString();
85    }
86
87    // *** Taken from NotificationController
88    public static final int NOTIFICATION_ID_EXCHANGE_CALENDAR_ADDED = 2;
89
90    /**
91     * Show the "Exchange calendar added" notification.
92     *
93     * @param emailAddresses space delimited list of email addresses of Exchange accounts.  It'll
94     *     be shown on the notification.
95     */
96    /* package for testing */ void showNotificationForTest(String emailAddresses) {
97        // Launch Calendar app when clicked.
98        PendingIntent launchCalendarPendingIntent = PendingIntent.getActivity(mContext, 0,
99                createLaunchCalendarIntent(), 0);
100
101        String tickerText = mContext.getString(R.string.notification_exchange_calendar_added);
102        Notification n = new Notification(R.drawable.stat_notify_calendar,
103                tickerText, System.currentTimeMillis());
104        n.setLatestEventInfo(mContext, tickerText, emailAddresses, launchCalendarPendingIntent);
105        n.flags = Notification.FLAG_AUTO_CANCEL;
106
107        NotificationManager nm =
108                (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
109        nm.notify(NOTIFICATION_ID_EXCHANGE_CALENDAR_ADDED, n);
110    }
111
112    /** @return {@link Intent} to launch the Calendar app. */
113    private Intent createLaunchCalendarIntent() {
114        return new Intent(Intent.ACTION_VIEW, Uri.parse("content://com.android.calendar/time"));
115    }
116}
117