1/*
2 * Copyright (C) 2016 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 android.widget;
18
19import android.perftests.utils.BenchmarkState;
20import android.perftests.utils.PerfStatusReporter;
21import android.perftests.utils.StubActivity;
22import android.support.test.InstrumentationRegistry;
23import android.support.test.filters.LargeTest;
24import android.support.test.rule.ActivityTestRule;
25import android.text.Selection;
26import android.view.KeyEvent;
27import android.view.View.MeasureSpec;
28import android.view.ViewGroup;
29
30import org.junit.Assert;
31import org.junit.Rule;
32import org.junit.Test;
33import org.junit.runner.RunWith;
34import org.junit.runners.Parameterized;
35import org.junit.runners.Parameterized.Parameters;
36
37import java.util.Arrays;
38import java.util.Collection;
39
40@LargeTest
41@RunWith(Parameterized.class)
42public class EditTextCursorMovementPerfTest {
43
44    private static final String BOY = "\uD83D\uDC66";  // U+1F466
45    private static final String US_FLAG = "\uD83C\uDDFA\uD83C\uDDF8";  // U+1F1FA U+1F1F8
46    private static final String FAMILY =
47            // U+1F469 U+200D U+1F469 U+200D U+1F467 U+200D U+1F467
48            "\uD83D\uDC69\u200D\uD83D\uDC69\u200D\uD83D\uDC67\u200D\uD83D\uDC67";
49
50    @Parameters(name = "{0}")
51    public static Collection cases() {
52        return Arrays.asList(new Object[][] {
53            { "Latin", "aaa", 1 },
54            { "Emoji", BOY + BOY + BOY, 2 },
55            { "Flags", US_FLAG + US_FLAG + US_FLAG, 4 },
56            { "ZwjSequence", FAMILY + FAMILY + FAMILY, 11 },
57        });
58    }
59
60    private final String mMetricKey;
61    private final String mText;
62    private final int mCursorPos;
63
64    private static final KeyEvent LEFT_ARROW_KEY_EVENT =
65            new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_LEFT);
66    private static final KeyEvent RIGHT_ARROW_KEY_EVENT =
67            new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_RIGHT);
68
69    public EditTextCursorMovementPerfTest(String metricKey, String text, int cursorPos) {
70        mMetricKey = metricKey;
71        mText = text;
72        mCursorPos = cursorPos;
73    }
74
75    @Rule
76    public ActivityTestRule<StubActivity> mActivityRule = new ActivityTestRule(StubActivity.class);
77
78    @Rule
79    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
80
81    @Test
82    public void testCursorMovement() {
83        InstrumentationRegistry.getInstrumentation().runOnMainSync(new Runnable() {
84            @Override
85            public void run() {
86                EditText editText = new EditText(mActivityRule.getActivity());
87
88                editText.setText(mText, TextView.BufferType.EDITABLE);
89                Selection.setSelection(editText.getText(), 0, 0);
90
91                // Layout it here since the cursor movement requires layout information but it
92                // happens asynchronously even if the view is attached to an Activity.
93                editText.setLayoutParams(new ViewGroup.LayoutParams(
94                        ViewGroup.LayoutParams.WRAP_CONTENT,
95                        ViewGroup.LayoutParams.WRAP_CONTENT));
96                editText.invalidate();
97                editText.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
98                                 MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
99                editText.layout(0, 0, 1024, 768);
100
101                // mText contains three grapheme clusters. Move the cursor to the 2nd grapheme
102                // cluster by forwarding right arrow key event.
103                editText.onKeyDown(RIGHT_ARROW_KEY_EVENT.getKeyCode(), RIGHT_ARROW_KEY_EVENT);
104                Assert.assertEquals(mCursorPos, Selection.getSelectionStart(editText.getText()));
105
106                BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
107                while (state.keepRunning()) {
108                    editText.onKeyDown(RIGHT_ARROW_KEY_EVENT.getKeyCode(), RIGHT_ARROW_KEY_EVENT);
109                    editText.onKeyDown(LEFT_ARROW_KEY_EVENT.getKeyCode(), LEFT_ARROW_KEY_EVENT);
110                }
111            }
112        });
113    }
114}
115