tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

hit-test-unpainted-element-from-point.html (2140B)

      1 <!DOCTYPE html>
      2 <title>View transitions: hit test shared element at the real dom location</title>
      3 <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
      4 <link rel="author" href="mailto:vmpstr@chromium.org">
      5 
      6 <script src="/resources/testharness.js"></script>
      7 <script src="/resources/testharnessreport.js"></script>
      8 
      9 <style>
     10 html { view-transition-name: none }
     11 #target {
     12  width: 100px;
     13  height: 100px;
     14  contain: paint;
     15  view-transition-name: shared;
     16  position: relative;
     17  z-index: 1;
     18 }
     19 .before {
     20  background: yellow;
     21  left: 200px;
     22 }
     23 .after {
     24  background: green;
     25 }
     26 .after:hover {
     27  background: red;
     28 }
     29 #unrelated {
     30  width: 50px;
     31  height: 50px;
     32  position: relative;
     33  top: -50px;
     34  background: blue;
     35 }
     36 
     37 html::view-transition {
     38  pointer-events: none;
     39 }
     40 html::view-transition-group(*) {
     41  pointer-events: auto;
     42 }
     43 
     44 html::view-transition-group(shared) {
     45  animation-delay: 300s;
     46 }
     47 html::view-transition-old(shared) {
     48  animation: unset;
     49  opacity: 1;
     50 }
     51 html::view-transition-new(shared) {
     52  display: none;
     53 }
     54 </style>
     55 
     56 <div id=target class=before></div>
     57 <div id=unrelated></div>
     58 
     59 <script>
     60 async_test(t => {
     61  assert_implements(document.startViewTransition, "Missing document.startViewTransition");
     62  document.startViewTransition(() => {
     63    target.classList.toggle("before");
     64    target.classList.toggle("after");
     65    requestAnimationFrame(async () => {
     66      // Check the location of the element, we should get body.
     67      t.step(() => assert_equals(document.elementFromPoint(20, 20), document.body));
     68      // Check the location of the pseudo element for the old snapshot, we should get documentElement,
     69      // which is the originating element for the pseudo element.
     70      t.step(() => assert_equals(document.elementFromPoint(220, 20), document.documentElement));
     71      // Check the spot that used to be covered by the element but now has
     72      // unrelated element, which is what we expect to get.
     73      t.step(() => assert_equals(document.elementFromPoint(20, 70), unrelated));
     74      t.done();
     75    });
     76  });
     77 }, "hit test should not hit unpainted element, but does hit pseudo and unrelated elements");
     78 </script>