wpt/css/css-conditional/container-queries/scroll-state/scroll-state-scrolled-multiple-scrollers.html at master · web-platform-tests/wpt · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
<!DOCTYPE html>
<title>@container: scroll-state(scrolled) multiple scrollers</title>
<link rel="help" href="https://un5n798jx6qx6j0rmf2verhh.julianrbryant.com/css-conditional-5/#scrolled">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/web-animations/testcommon.js"></script>
<script src="/dom/events/scrolling/scroll_support.js"></script>
<script src="/css/css-conditional/container-queries/support/cq-testcommon.js"></script>
<style>
  .scroller {
    width: 200px;
    height: 200px;
    container-type: scroll-state;
    overflow-y: scroll;
  }
  .filler {
    height: 600px;
  }
  .target {
    --top1: no;
    --top2: no;
    --bottom1: no;
    --bottom2: no;
  }
  #target1 {
    @container scroll-state(scrolled: top) {
      --top1: yes;
    }
    @container scroll-state(scrolled: bottom) {
      --bottom1: yes;
    }
  }
  #target2 {
    @container scroll-state(scrolled: top) {
      --top2: yes;
    }
    @container scroll-state(scrolled: bottom) {
      --bottom2: yes;
    }
  }
</style>
<div id="scroller1" class="scroller">
  <div class="filler">
    <div id="target1" class="target"></div>
  </div>
</div>
<div id="scroller2" class="scroller">
  <div class="filler">
    <div id="target2" class="target"></div>
  </div>
</div>
<script>
  setup(() => assert_implements_scroll_state_container_queries());

  function touch_scroll(start_pos, end_pos) {
    return new test_driver.Actions()
        .addPointer("TestPointer", "touch")
        .pointerMove(Math.round(start_pos.x), Math.round(start_pos.y))
        .pointerDown()
        .addTick()
        .pause(200)
        .pointerMove(Math.round(end_pos.x), Math.round(end_pos.y))
        .addTick()
        .pointerUp()
        .send();
  }

  promise_test(async t => {
    let scrollEndPromise1 = waitForScrollEndFallbackToDelayWithoutScrollEvent(scroller1);
    let scrollEndPromise2 = waitForScrollEndFallbackToDelayWithoutScrollEvent(scroller2);

    scroller1.addEventListener('scroll', () => {
      scroller2.scrollTop = 300;
      scroller2.scrollBy({top: -150, behavior: "smooth"});
    }, { once: true });

    // Scroll element position
    const start = {
      x: 100,
      y: 100,
    };
    const end = { x: 100, y: 0 };
    await touch_scroll(start, end);

    await Promise.all([scrollEndPromise1, scrollEndPromise2]);
    await waitForAnimationFrames(2);

    assert_equals(getComputedStyle(target1).getPropertyValue("--top1"), "no");
    assert_equals(getComputedStyle(target1).getPropertyValue("--bottom1"), "yes");
    assert_equals(scroller2.scrollTop, 150);
    assert_equals(getComputedStyle(target2).getPropertyValue("--top2"), "yes");
    assert_equals(getComputedStyle(target2).getPropertyValue("--bottom2"), "no");
  }, "User scroll caused programmatic relative scroll");

</script>