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 
17 package android.widget;
18 
19 import com.android.frameworks.coretests.R;
20 
21 import android.app.Activity;
22 import android.os.Bundle;
23 import android.os.SystemClock;
24 import android.util.Log;
25 
26 /**
27  * An activity for testing the TextView widget.
28  *
29  * This class is copied from {@link android.text.method.cts.KeyListenerCtsActivity} in
30  * CtsTextTestCase.  The original class is located at
31  * cts/tests/tests/text/src/android/text/method/cts/KeyListenerCtsActivity.java
32  */
33 public class TextViewActivity extends Activity {
34     private boolean mHasWindowFocus = false;
35     private Object mHasWindowFocusLock = new Object();
36 
37     @Override
onCreate(Bundle savedInstanceState)38     protected void onCreate(Bundle savedInstanceState) {
39         super.onCreate(savedInstanceState);
40         setContentView(R.layout.activity_text_view);
41     }
42 
43     @Override
onWindowFocusChanged(boolean hasFocus)44     public void onWindowFocusChanged(boolean hasFocus) {
45         super.onWindowFocusChanged(hasFocus);
46         if (!hasFocus) {
47             Log.w("TextViewActivity", "TextViewActivity lost window focus");
48         }
49         synchronized(mHasWindowFocusLock) {
50             mHasWindowFocus = hasFocus;
51             mHasWindowFocusLock.notify();
52         }
53     }
54 
55     /**
56      * Blocks the calling thread until the {@link KeyListenerCtsActivity} has window focus or the
57      * specified duration (in milliseconds) has passed.
58      */
waitForWindowFocus(long durationMillis)59     public boolean waitForWindowFocus(long durationMillis) {
60         long elapsedMillis = SystemClock.elapsedRealtime();
61         synchronized(mHasWindowFocusLock) {
62             mHasWindowFocus = hasWindowFocus();
63             while (!mHasWindowFocus && durationMillis > 0) {
64                 long newElapsedMillis = SystemClock.elapsedRealtime();
65                 durationMillis -= (newElapsedMillis - elapsedMillis);
66                 elapsedMillis = newElapsedMillis;
67                 if (durationMillis > 0) {
68                     try {
69                         mHasWindowFocusLock.wait(durationMillis);
70                     } catch (InterruptedException e) {
71                     }
72                 }
73             }
74             return mHasWindowFocus;
75         }
76     }
77 }
78