1/*
2 * Copyright (C) 2017 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.server.telecom.testapps;
18
19import android.app.Activity;
20import android.os.Bundle;
21import android.os.Handler;
22import android.os.Looper;
23import android.os.Message;
24import android.telecom.Call;
25import android.telecom.Log;
26import android.text.Editable;
27import android.text.TextWatcher;
28import android.view.View;
29import android.widget.AdapterView;
30import android.widget.ArrayAdapter;
31import android.widget.Button;
32import android.widget.EditText;
33import android.widget.Spinner;
34import android.widget.TextView;
35import android.widget.Toast;
36
37import java.io.IOException;
38import java.io.InputStreamReader;
39import java.io.OutputStreamWriter;
40
41public class TestRttActivity extends Activity {
42    private static final String LOG_TAG = TestRttActivity.class.getSimpleName();
43    private static final long NEWLINE_DELAY_MILLIS = 3000;
44
45    private static final int UPDATE_RECEIVED_TEXT = 1;
46    private static final int UPDATE_SENT_TEXT = 2;
47    private static final int RECEIVED_MESSAGE_GAP = 3;
48    private static final int SENT_MESSAGE_GAP = 4;
49
50    private TextView mReceivedText;
51    private TextView mSentText;
52    private EditText mTypingBox;
53
54    private TestCallList mCallList;
55
56    private Handler mTextDisplayHandler = new Handler(Looper.getMainLooper()) {
57        @Override
58        public void handleMessage(Message msg) {
59            String text;
60            switch (msg.what) {
61                case UPDATE_RECEIVED_TEXT:
62                    text = (String) msg.obj;
63                    mReceivedText.append(text);
64                    break;
65                case UPDATE_SENT_TEXT:
66                    text = (String) msg.obj;
67                    mSentText.append(text);
68                    break;
69                case RECEIVED_MESSAGE_GAP:
70                    mReceivedText.append("\n> ");
71                    break;
72                case SENT_MESSAGE_GAP:
73                    mSentText.append("\n> ");
74                    mTypingBox.setText("");
75                    break;
76                default:
77                    Log.w(LOG_TAG, "Invalid message %d", msg.what);
78            }
79        }
80    };
81
82    private Thread mReceiveReader = new Thread() {
83        @Override
84        public void run() {
85            // outer loop
86            while (true) {
87                begin :
88                // sleep and wait if there are no calls
89                while (mCallList.size() > 0) {
90                    Call.RttCall rttCall = mCallList.getCall(0).getRttCall();
91                    if (rttCall == null) {
92                        break;
93                    }
94                    // inner read loop
95                    while (true) {
96                        String receivedText;
97                        receivedText = rttCall.read();
98                        if (receivedText == null) {
99                            if (Thread.currentThread().isInterrupted()) {
100                                break begin;
101                            }
102                            break;
103                        }
104                        Log.d(LOG_TAG, "Received %s", receivedText);
105                        mTextDisplayHandler.removeMessages(RECEIVED_MESSAGE_GAP);
106                        mTextDisplayHandler.sendEmptyMessageDelayed(RECEIVED_MESSAGE_GAP,
107                                NEWLINE_DELAY_MILLIS);
108                        mTextDisplayHandler.obtainMessage(UPDATE_RECEIVED_TEXT, receivedText)
109                                .sendToTarget();
110                    }
111                }
112                if (Thread.currentThread().isInterrupted()) {
113                    break;
114                }
115                try {
116                    Thread.sleep(5000);
117                } catch (InterruptedException e) {
118                    break;
119                }
120            }
121        }
122    };
123
124    @Override
125    protected void onCreate(Bundle savedInstanceState) {
126        super.onCreate(savedInstanceState);
127
128        setContentView(R.layout.rtt_incall_screen);
129
130        mReceivedText = (TextView) findViewById(R.id.received_messages_text);
131        mSentText = (TextView) findViewById(R.id.sent_messages_text);
132        mTypingBox = (EditText) findViewById(R.id.rtt_typing_box);
133
134        Button endRttButton = (Button) findViewById(R.id.end_rtt_button);
135        Spinner rttModeSelector = (Spinner) findViewById(R.id.rtt_mode_selection_spinner);
136
137        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
138                R.array.rtt_mode_array, android.R.layout.simple_spinner_item);
139        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
140        rttModeSelector.setAdapter(adapter);
141
142        mCallList = TestCallList.getInstance();
143        mCallList.addListener(new TestCallList.Listener() {
144            @Override
145            public void onCallRemoved(Call call) {
146                if (mCallList.size() == 0) {
147                    Log.i(LOG_TAG, "Ending the RTT UI");
148                    finish();
149                }
150            }
151
152            @Override
153            public void onRttStopped(Call call) {
154                TestRttActivity.this.finish();
155            }
156        });
157
158        endRttButton.setOnClickListener((view) -> {
159            Call call = mCallList.getCall(0);
160            call.stopRtt();
161        });
162
163        rttModeSelector.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
164            @Override
165            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
166                CharSequence selection = (CharSequence) parent.getItemAtPosition(position);
167                Call.RttCall call = mCallList.getCall(0).getRttCall();
168                switch (selection.toString()) {
169                    case "Full":
170                        call.setRttMode(Call.RttCall.RTT_MODE_FULL);
171                        break;
172                    case "HCO":
173                        call.setRttMode(Call.RttCall.RTT_MODE_HCO);
174                        break;
175                    case "VCO":
176                        call.setRttMode(Call.RttCall.RTT_MODE_VCO);
177                        break;
178                    default:
179                        Log.w(LOG_TAG, "Bad name for rtt mode: %s", selection.toString());
180                }
181            }
182
183            @Override
184            public void onNothingSelected(AdapterView<?> parent) {
185            }
186        });
187
188        mTypingBox.addTextChangedListener(new TextWatcher() {
189            @Override
190            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
191            }
192
193            @Override
194            public void onTextChanged(CharSequence s, int start, int before, int count) {
195                if (count == 0 || count < before) {
196                    // ignore deletions and clears
197                    return;
198                }
199                // Only appending at the end is supported.
200                int numCharsInserted = count - before;
201                String toAppend =
202                        s.subSequence(s.length() - numCharsInserted, s.length()).toString();
203
204                if (toAppend.isEmpty()) {
205                    return;
206                }
207                try {
208                    mCallList.getCall(0).getRttCall().write(toAppend);
209                } catch (IOException e) {
210                    Log.w(LOG_TAG, "Exception sending text %s: %s", toAppend, e);
211                }
212                mTextDisplayHandler.removeMessages(SENT_MESSAGE_GAP);
213                mTextDisplayHandler.sendEmptyMessageDelayed(SENT_MESSAGE_GAP, NEWLINE_DELAY_MILLIS);
214                mTextDisplayHandler.obtainMessage(UPDATE_SENT_TEXT, toAppend).sendToTarget();
215            }
216
217            @Override
218            public void afterTextChanged(Editable s) {
219            }
220        });
221
222    }
223
224    @Override
225    public void onStart() {
226        super.onStart();
227        mReceiveReader.start();
228    }
229
230    @Override
231    public void onStop() {
232        super.onStop();
233        mReceiveReader.interrupt();
234    }
235
236}
237