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      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 package com.android.test.uibench;
     17 
     18 import android.app.Instrumentation;
     19 import android.os.Bundle;
     20 import android.os.Looper;
     21 import android.os.MessageQueue;
     22 import android.support.v7.app.AppCompatActivity;
     23 import android.view.KeyEvent;
     24 import android.widget.EditText;
     25 
     26 import 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  */
     34 public 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