ClassZeroActivity.java revision 43bcf48daea4e763811dffa75f62c2b4a3a39310 
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.ui;
19
20import android.app.Activity;
21import android.app.AlertDialog;
22import android.content.ContentResolver;
23import android.content.ContentUris;
24import android.content.ContentValues;
25import android.content.DialogInterface;
26import android.content.DialogInterface.OnClickListener;
27import android.database.Cursor;
28import android.net.Uri;
29import android.os.Bundle;
30import android.os.Handler;
31import android.os.Message;
32import android.os.SystemClock;
33import android.provider.Telephony.Sms;
34import android.provider.Telephony.Sms.Inbox;
35import android.telephony.SmsMessage;
36import android.text.TextUtils;
37import android.util.Log;
38import android.util.Config;
39import android.view.Window;
40
41import com.android.mms.R;
42import com.android.mms.transaction.SmsReceiverService;
43import com.android.mms.transaction.MessagingNotification;
44
45import com.google.android.mms.util.SqliteWrapper;
46
47/**
48 * Display a class-zero SMS message to the user. Wait for the user to dismiss
49 * it.
50 */
51public class ClassZeroActivity extends Activity {
52    private static final String BUFFER = "         ";
53    private static final int BUFFER_OFFSET = BUFFER.length() * 2;
54    private static final String TAG = "display_00";
55    private static final int ON_AUTO_SAVE = 1;
56    private static final String[] REPLACE_PROJECTION = new String[] { Sms._ID,
57            Sms.ADDRESS, Sms.PROTOCOL };
58    private static final int REPLACE_COLUMN_ID = 0;
59
60    /** Default timer to dismiss the dialog. */
61    private static final long DEFAULT_TIMER = 5 * 60 * 1000;
62
63    /** To remember the exact time when the timer should fire. */
64    private static final String TIMER_FIRE = "timer_fire";
65
66    private SmsMessage mMessage = null;
67
68    /** Is the message read. */
69    private boolean mRead = false;
70
71    /** The timer to dismiss the dialog automatically. */
72    private long mTimerSet = 0;
73    private AlertDialog mDialog = null;
74
75    private Handler mHandler = new Handler() {
76        @Override
77        public void handleMessage(Message msg) {
78            // Do not handle an invalid message.
79            if (msg.what == ON_AUTO_SAVE) {
80                mRead = false;
81                mDialog.dismiss();
82                saveMessage();
83                finish();
84            }
85        }
86    };
87
88    private void saveMessage() {
89        Uri messageUri = null;
90        if (mMessage.isReplace()) {
91            messageUri = replaceMessage(mMessage);
92        } else {
93            messageUri = storeMessage(mMessage);
94        }
95        if (!mRead && messageUri != null) {
96            MessagingNotification.updateNewMessageIndicator(this, true);
97        }
98    }
99
100    @Override
101    protected void onCreate(Bundle icicle) {
102        super.onCreate(icicle);
103        requestWindowFeature(Window.FEATURE_NO_TITLE);
104        getWindow().setBackgroundDrawableResource(
105                R.drawable.class_zero_background);
106
107        byte[] pdu = getIntent().getByteArrayExtra("pdu");
108        mMessage = SmsMessage.createFromPdu(pdu);
109        CharSequence messageChars = mMessage.getMessageBody();
110        String message = messageChars.toString();
111        if (TextUtils.isEmpty(message)) {
112            finish();
113            return;
114        }
115        // TODO: The following line adds an emptry string before and after a message.
116        // This is not the correct way to layout a message. This is more of a hack
117        // to work-around a bug in AlertDialog. This needs to be fixed later when
118        // Android fixes the bug in AlertDialog.
119        if (message.length() < BUFFER_OFFSET) messageChars = BUFFER + message + BUFFER;
120        long now = SystemClock.uptimeMillis();
121        mDialog = new AlertDialog.Builder(this).setMessage(messageChars)
122                .setPositiveButton(R.string.save, mSaveListener)
123                .setNegativeButton(android.R.string.cancel, mCancelListener)
124                .setCancelable(false).show();
125        mTimerSet = now + DEFAULT_TIMER;
126        if (icicle != null) {
127            mTimerSet = icicle.getLong(TIMER_FIRE, mTimerSet);
128        }
129    }
130
131    @Override
132    protected void onStart() {
133        super.onStart();
134        long now = SystemClock.uptimeMillis();
135        if (mTimerSet <= now) {
136            // Save the message if the timer already expired.
137            mHandler.sendEmptyMessage(ON_AUTO_SAVE);
138        } else {
139            mHandler.sendEmptyMessageAtTime(ON_AUTO_SAVE, mTimerSet);
140            if (Config.DEBUG) {
141                Log.d(TAG, "onRestart time = " + Long.toString(mTimerSet) + " "
142                        + this.toString());
143            }
144        }
145    }
146
147    @Override
148    protected void onSaveInstanceState(Bundle outState) {
149        super.onSaveInstanceState(outState);
150        outState.putLong(TIMER_FIRE, mTimerSet);
151        if (Config.DEBUG) {
152            Log.d(TAG, "onSaveInstanceState time = " + Long.toString(mTimerSet)
153                    + " " + this.toString());
154        }
155    }
156
157    @Override
158    protected void onStop() {
159        super.onStop();
160        mHandler.removeMessages(ON_AUTO_SAVE);
161        if (Config.DEBUG) {
162            Log.d(TAG, "onStop time = " + Long.toString(mTimerSet)
163                    + " " + this.toString());
164        }
165    }
166
167    private final OnClickListener mCancelListener = new OnClickListener() {
168        public void onClick(DialogInterface dialog, int whichButton) {
169            finish();
170        }
171    };
172
173    private final OnClickListener mSaveListener = new OnClickListener() {
174        public void onClick(DialogInterface dialog, int whichButton) {
175            mRead = true;
176            saveMessage();
177            finish();
178        }
179    };
180
181    private ContentValues extractContentValues(SmsMessage sms) {
182        // Store the message in the content provider.
183        ContentValues values = new ContentValues();
184
185        values.put(Inbox.ADDRESS, sms.getDisplayOriginatingAddress());
186
187        // Use now for the timestamp to avoid confusion with clock
188        // drift between the handset and the SMSC.
189        values.put(Inbox.DATE, new Long(System.currentTimeMillis()));
190        values.put(Inbox.PROTOCOL, sms.getProtocolIdentifier());
191        values.put(Inbox.READ, Integer.valueOf(mRead ? 1 : 0));
192
193        if (sms.getPseudoSubject().length() > 0) {
194            values.put(Inbox.SUBJECT, sms.getPseudoSubject());
195        }
196        values.put(Inbox.REPLY_PATH_PRESENT, sms.isReplyPathPresent() ? 1 : 0);
197        values.put(Inbox.SERVICE_CENTER, sms.getServiceCenterAddress());
198        return values;
199    }
200
201    private Uri replaceMessage(SmsMessage sms) {
202        ContentValues values = extractContentValues(sms);
203
204        values.put(Inbox.BODY, sms.getMessageBody());
205
206        ContentResolver resolver = getContentResolver();
207        String originatingAddress = sms.getOriginatingAddress();
208        int protocolIdentifier = sms.getProtocolIdentifier();
209        String selection = Sms.ADDRESS + " = ? AND " + Sms.PROTOCOL + " = ?";
210        String[] selectionArgs = new String[] { originatingAddress,
211                Integer.toString(protocolIdentifier) };
212
213        Cursor cursor = SqliteWrapper.query(this, resolver, Inbox.CONTENT_URI,
214                REPLACE_PROJECTION, selection, selectionArgs, null);
215
216        try {
217            if (cursor.moveToFirst()) {
218                long messageId = cursor.getLong(REPLACE_COLUMN_ID);
219                Uri messageUri = ContentUris.withAppendedId(
220                        Sms.CONTENT_URI, messageId);
221
222                SqliteWrapper.update(this, resolver, messageUri, values,
223                        null, null);
224                return messageUri;
225            }
226        } finally {
227            cursor.close();
228        }
229        return storeMessage(sms);
230    }
231
232    private Uri storeMessage(SmsMessage sms) {
233        // Store the message in the content provider.
234        ContentValues values = extractContentValues(sms);
235        values.put(Inbox.BODY, sms.getDisplayMessageBody());
236        ContentResolver resolver = getContentResolver();
237        if (Config.DEBUG) {
238            Log.d(TAG, "storeMessage " + this.toString());
239        }
240        return SqliteWrapper.insert(this, resolver, Inbox.CONTENT_URI, values);
241    }
242}
243