1/*
2 * Copyright (C) 2008 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.scroll.arrowscroll;
18
19import android.widget.scroll.ShortButtons;
20
21import android.graphics.Rect;
22import android.test.ActivityInstrumentationTestCase;
23import android.test.suitebuilder.annotation.LargeTest;
24import android.test.suitebuilder.annotation.MediumTest;
25import android.view.KeyEvent;
26import android.widget.Button;
27import android.widget.ScrollView;
28
29public class ShortButtonsTest extends ActivityInstrumentationTestCase<ShortButtons> {
30
31    private ScrollView mScrollView;
32
33    public ShortButtonsTest() {
34        super("com.android.frameworks.coretests", ShortButtons.class);
35    }
36
37    @Override
38    protected void setUp() throws Exception {
39        super.setUp();
40
41        mScrollView = getActivity().getScrollView();
42    }
43
44    @MediumTest
45    public void testPreconditions() {
46        assertTrue("buttons should be shorter than screen",
47                getActivity().getButtonAt(0).getHeight()
48                        < mScrollView.getHeight());
49
50        assertTrue("should be enough buttons to have some scrolled off screen",
51                getActivity().getLinearLayout().getHeight()
52                        > getActivity().getScrollView().getHeight());
53    }
54
55    @LargeTest
56    public void testScrollDownToBottomThroughButtons() throws Exception {
57        final int numButtons = getActivity().getNumButtons();
58
59        for (int i = 0; i < numButtons; i++) {
60            String prefix = "after " + i + " downs expected button " + i;
61            final Button button = getActivity().getButtonAt(i);
62            assertTrue(prefix + "  to have focus", button.isFocused());
63            assertTrue(prefix + " to be on screen", isButtonOnScreen(button));
64            sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);
65        }
66
67        assertEquals("should be fully scrolled to bottom",
68                getActivity().getLinearLayout().getHeight() - mScrollView.getHeight(),
69                mScrollView.getScrollY());
70    }
71
72    @LargeTest
73    public void testScrollFromBottomToTopThroughButtons() throws Exception {
74        final int numButtons = getActivity().getNumButtons();
75
76        final Button lastButton = getActivity().getButtonAt(numButtons - 1);
77
78        lastButton.post(new Runnable() {
79            public void run() {
80                lastButton.requestFocus();
81            }
82        });
83
84        getInstrumentation().waitForIdleSync();
85
86        assertTrue("lastButton.isFocused()", lastButton.isFocused());
87
88        for (int i = numButtons - 1; i >= 0; i--) {
89            String prefix = "after " + i + " ups expected button " + i;
90            final Button button = getActivity().getButtonAt(i);
91            assertTrue(prefix + "  to have focus", button.isFocused());
92            assertTrue(prefix + " to be on screen", isButtonOnScreen(button));
93            sendKeys(KeyEvent.KEYCODE_DPAD_UP);
94        }
95
96        assertEquals("should be fully scrolled to top",
97                0,
98                mScrollView.getScrollY());
99    }
100
101    private Rect mTempRect = new Rect();
102    protected boolean isButtonOnScreen(Button b) {
103        b.getDrawingRect(mTempRect);
104        mScrollView.offsetDescendantRectToMyCoords(b, mTempRect);
105        return mTempRect.bottom >= mScrollView.getScrollY()
106                && mTempRect.top <= (mScrollView.getScrollY() + mScrollView.getHeight());
107    }
108
109}
110