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 */
16package com.android.test.uibench;
17
18import android.app.Instrumentation;
19import android.os.Bundle;
20import android.os.Looper;
21import android.os.MessageQueue;
22import android.support.v7.app.AppCompatActivity;
23import android.view.KeyEvent;
24import android.widget.EditText;
25
26import java.util.concurrent.Semaphore;
27
28/**
29 * Note: currently incomplete, complexity of input continuously grows, instead of looping
30 * over a stable amount of work.
31 *
32 * Simulates typing continuously into an EditText.
33 */
34public class EditTextTypeActivity extends AppCompatActivity {
35    Thread mThread;
36
37    private static String sSeedText = "";
38    static {
39        final int count = 100;
40        final String string = "hello ";
41
42        StringBuilder builder = new StringBuilder(count * string.length());
43        for (int i = 0; i < count; i++) {
44            builder.append(string);
45        }
46        sSeedText = builder.toString();
47    }
48
49    final Object mLock = new Object();
50    boolean mShouldStop = false;
51
52    @Override
53    protected void onCreate(Bundle savedInstanceState) {
54        super.onCreate(savedInstanceState);
55
56        EditText editText = new EditText(this);
57        editText.setText(sSeedText);
58        setContentView(editText);
59
60        final Instrumentation instrumentation = new Instrumentation();
61        final Semaphore sem = new Semaphore(0);
62        MessageQueue.IdleHandler handler = new MessageQueue.IdleHandler() {
63            @Override
64            public boolean queueIdle() {
65                // TODO: consider other signaling approaches
66                sem.release();
67                return true;
68            }
69        };
70        Looper.myQueue().addIdleHandler(handler);
71        synchronized (mLock) {
72            mShouldStop = false;
73        }
74        mThread = new Thread(new Runnable() {
75            int codes[] = { KeyEvent.KEYCODE_H, KeyEvent.KEYCODE_E, KeyEvent.KEYCODE_L,
76                    KeyEvent.KEYCODE_L, KeyEvent.KEYCODE_O, KeyEvent.KEYCODE_SPACE };
77            int i = 0;
78            @Override
79            public void run() {
80                while (true) {
81                    try {
82                        sem.acquire();
83                    } catch (InterruptedException e) {
84                        // TODO, maybe
85                    }
86                    int code = codes[i % codes.length];
87                    if (i % 100 == 99) code = KeyEvent.KEYCODE_ENTER;
88
89                    synchronized (mLock) {
90                        if (mShouldStop) break;
91                    }
92
93                    // TODO: bit of a race here, since the event can arrive after pause/stop.
94                    // (Can't synchronize on key send, since it's synchronous.)
95                    instrumentation.sendKeyDownUpSync(code);
96                    i++;
97                }
98            }
99        });
100        mThread.start();
101    }
102
103    @Override
104    protected void onPause() {
105        synchronized (mLock) {
106            mShouldStop = true;
107        }
108        super.onPause();
109    }
110}
111