1/*
2 * Copyright (C) 2015 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.messaging.ui;
18
19import android.app.Activity;
20import android.app.AlertDialog;
21import android.content.ContentValues;
22import android.content.DialogInterface;
23import android.content.DialogInterface.OnClickListener;
24import android.content.Intent;
25import android.os.Bundle;
26import android.os.Handler;
27import android.os.Message;
28import android.os.SystemClock;
29import android.provider.Telephony.Sms;
30import android.text.TextUtils;
31import android.util.Log;
32import android.view.Window;
33
34import com.android.messaging.R;
35import com.android.messaging.datamodel.action.ReceiveSmsMessageAction;
36import com.android.messaging.util.Assert;
37
38import java.util.ArrayList;
39
40/**
41 * Display a class-zero SMS message to the user. Wait for the user to dismiss
42 * it.
43 */
44public class ClassZeroActivity extends Activity {
45    private static final boolean VERBOSE = false;
46    private static final String TAG = "display_00";
47    private static final int ON_AUTO_SAVE = 1;
48
49    /** Default timer to dismiss the dialog. */
50    private static final long DEFAULT_TIMER = 5 * 60 * 1000;
51
52    /** To remember the exact time when the timer should fire. */
53    private static final String TIMER_FIRE = "timer_fire";
54
55    private ContentValues mMessageValues = null;
56
57    /** Is the message read. */
58    private boolean mRead = false;
59
60    /** The timer to dismiss the dialog automatically. */
61    private long mTimerSet = 0;
62    private AlertDialog mDialog = null;
63
64    private ArrayList<ContentValues> mMessageQueue = null;
65
66    private final Handler mHandler = new Handler() {
67        @Override
68        public void handleMessage(final Message msg) {
69            // Do not handle an invalid message.
70            if (msg.what == ON_AUTO_SAVE) {
71                mRead = false;
72                mDialog.dismiss();
73                saveMessage();
74                processNextMessage();
75            }
76        }
77    };
78
79    private boolean queueMsgFromIntent(final Intent msgIntent) {
80        final ContentValues messageValues =
81                msgIntent.getParcelableExtra(UIIntents.UI_INTENT_EXTRA_MESSAGE_VALUES);
82        // that takes the format argument is a hidden API right now.
83        final String message = messageValues.getAsString(Sms.BODY);
84        if (TextUtils.isEmpty(message)) {
85            if (mMessageQueue.size() == 0) {
86                finish();
87            }
88            return false;
89        }
90        mMessageQueue.add(messageValues);
91        return true;
92    }
93
94    private void processNextMessage() {
95        if (mMessageQueue.size() > 0) {
96            mMessageQueue.remove(0);
97        }
98        if (mMessageQueue.size() == 0) {
99            finish();
100        } else {
101            displayZeroMessage(mMessageQueue.get(0));
102        }
103    }
104
105    private void saveMessage() {
106        mMessageValues.put(Sms.Inbox.READ, mRead ? Integer.valueOf(1) : Integer.valueOf(0));
107        final ReceiveSmsMessageAction action = new ReceiveSmsMessageAction(mMessageValues);
108        action.start();
109    }
110
111    @Override
112    protected void onCreate(final Bundle icicle) {
113        super.onCreate(icicle);
114        requestWindowFeature(Window.FEATURE_NO_TITLE);
115
116        if (mMessageQueue == null) {
117            mMessageQueue = new ArrayList<ContentValues>();
118        }
119        if (!queueMsgFromIntent(getIntent())) {
120            return;
121        }
122        Assert.isTrue(mMessageQueue.size() == 1);
123        if (mMessageQueue.size() == 1) {
124            displayZeroMessage(mMessageQueue.get(0));
125        }
126
127        if (icicle != null) {
128            mTimerSet = icicle.getLong(TIMER_FIRE, mTimerSet);
129        }
130    }
131
132    private void displayZeroMessage(final ContentValues messageValues) {
133        /* This'll be used by the save action */
134        mMessageValues = messageValues;
135        final String message = messageValues.getAsString(Sms.BODY);;
136
137        mDialog = new AlertDialog.Builder(this).setMessage(message)
138            .setPositiveButton(R.string.save, mSaveListener)
139            .setNegativeButton(android.R.string.cancel, mCancelListener)
140            .setTitle(R.string.class_0_message_activity)
141            .setCancelable(false).show();
142        final long now = SystemClock.uptimeMillis();
143        mTimerSet = now + DEFAULT_TIMER;
144    }
145
146    @Override
147    protected void onNewIntent(final Intent msgIntent) {
148        // Running with another visible message, queue this one
149        queueMsgFromIntent(msgIntent);
150    }
151
152    @Override
153    protected void onStart() {
154        super.onStart();
155        final long now = SystemClock.uptimeMillis();
156        if (mTimerSet <= now) {
157            // Save the message if the timer already expired.
158            mHandler.sendEmptyMessage(ON_AUTO_SAVE);
159        } else {
160            mHandler.sendEmptyMessageAtTime(ON_AUTO_SAVE, mTimerSet);
161            if (VERBOSE) {
162                Log.d(TAG, "onRestart time = " + Long.toString(mTimerSet) + " "
163                        + this.toString());
164            }
165        }
166    }
167
168    @Override
169    protected void onSaveInstanceState(final Bundle outState) {
170        super.onSaveInstanceState(outState);
171        outState.putLong(TIMER_FIRE, mTimerSet);
172        if (VERBOSE) {
173            Log.d(TAG, "onSaveInstanceState time = " + Long.toString(mTimerSet)
174                    + " " + this.toString());
175        }
176    }
177
178    @Override
179    protected void onStop() {
180        super.onStop();
181        mHandler.removeMessages(ON_AUTO_SAVE);
182        if (VERBOSE) {
183            Log.d(TAG, "onStop time = " + Long.toString(mTimerSet)
184                    + " " + this.toString());
185        }
186    }
187
188    private final OnClickListener mCancelListener = new OnClickListener() {
189        @Override
190        public void onClick(final DialogInterface dialog, final int whichButton) {
191            dialog.dismiss();
192            processNextMessage();
193        }
194    };
195
196    private final OnClickListener mSaveListener = new OnClickListener() {
197        @Override
198        public void onClick(final DialogInterface dialog, final int whichButton) {
199            mRead = true;
200            saveMessage();
201            dialog.dismiss();
202            processNextMessage();
203        }
204    };
205}
206