MmsSystemEventReceiver.java revision 3b21f6ab04db5936d73e9f53032f1587389380ff 
1/*
2 * Copyright (C) 2007-2008 Esmertec AG.
3 * Copyright (C) 2007-2008 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package com.android.mms.transaction;
19
20import android.content.BroadcastReceiver;
21import android.content.Context;
22import android.content.Intent;
23import android.content.IntentFilter;
24import android.net.Uri;
25import android.provider.Telephony.Mms;
26import android.util.Log;
27
28import com.android.internal.telephony.Phone;
29import com.android.internal.telephony.TelephonyIntents;
30import com.android.mms.LogTag;
31import com.google.android.mms.util.PduCache;
32
33/**
34 * MmsSystemEventReceiver receives the
35 * {@link android.content.intent.ACTION_BOOT_COMPLETED},
36 * {@link com.android.internal.telephony.TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED}
37 * and performs a series of operations which may include:
38 * <ul>
39 * <li>Show/hide the icon in notification area which is used to indicate
40 * whether there is new incoming message.</li>
41 * <li>Resend the MM's in the outbox.</li>
42 * </ul>
43 */
44public class MmsSystemEventReceiver extends BroadcastReceiver {
45    private static final String TAG = "MmsSystemEventReceiver";
46    private static MmsSystemEventReceiver sMmsSystemEventReceiver;
47
48    private static void wakeUpService(Context context) {
49        if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) {
50            Log.v(TAG, "wakeUpService: start transaction service ...");
51        }
52
53        context.startService(new Intent(context, TransactionService.class));
54    }
55
56    @Override
57    public void onReceive(Context context, Intent intent) {
58        if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) {
59            Log.v(TAG, "Intent received: " + intent);
60        }
61
62        String action = intent.getAction();
63        if (action.equals(Mms.Intents.CONTENT_CHANGED_ACTION)) {
64            Uri changed = (Uri) intent.getParcelableExtra(Mms.Intents.DELETED_CONTENTS);
65            PduCache.getInstance().purge(changed);
66        } else if (action.equals(TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED)) {
67            String state = intent.getStringExtra(Phone.STATE_KEY);
68
69            if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) {
70                Log.v(TAG, "ANY_DATA_STATE event received: " + state);
71            }
72
73            if (state.equals("CONNECTED")) {
74                wakeUpService(context);
75            }
76        } else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) {
77            // We should check whether there are unread incoming
78            // messages in the Inbox and then update the notification icon.
79            // Called on the UI thread so don't block.
80            MessagingNotification.nonBlockingUpdateNewMessageIndicator(context, false, false);
81        }
82    }
83
84    public static void registerForConnectionStateChanges(Context context) {
85        unRegisterForConnectionStateChanges(context);
86
87        IntentFilter intentFilter = new IntentFilter();
88        intentFilter.addAction(TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED);
89        if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) {
90            Log.v(TAG, "registerForConnectionStateChanges");
91        }
92        if (sMmsSystemEventReceiver == null) {
93            sMmsSystemEventReceiver = new MmsSystemEventReceiver();
94        }
95
96        context.registerReceiver(sMmsSystemEventReceiver, intentFilter);
97    }
98
99    public static void unRegisterForConnectionStateChanges(Context context) {
100        if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) {
101            Log.v(TAG, "unRegisterForConnectionStateChanges");
102        }
103        if (sMmsSystemEventReceiver != null) {
104            try {
105                context.unregisterReceiver(sMmsSystemEventReceiver);
106            } catch (IllegalArgumentException e) {
107                // Allow un-matched register-unregister calls
108            }
109        }
110    }
111}
112