slotted-invalidation.html (1265B)
1 <!doctype html> 2 <title>CSS Test: Style invalidation for ::slotted()</title> 3 <script src="/resources/testharness.js"></script> 4 <script src="/resources/testharnessreport.js"></script> 5 <link rel="author" title="Rune Lillesveen" href="mailto:futhark@chromium.org"> 6 <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> 7 <link rel="help" href="https://drafts.csswg.org/css-scoping/#slotted-pseudo"> 8 <div id="host"> 9 <div> 10 <span></span> 11 <span></span> 12 </div> 13 <div id="slotted"> 14 <span></span> 15 <span></span> 16 </div> 17 <div> 18 <span></span> 19 <span></span> 20 </div> 21 </div> 22 <script> 23 test(function() { 24 var root = host.attachShadow({"mode":"open"}); 25 root.innerHTML = '<style>.outer ::slotted(#slotted) { background-color: red } .outer .inner::slotted(#slotted) { background-color: green }</style><div id="outer"><slot id="inner"></slot></div>'; 26 27 assert_equals(window.getComputedStyle(slotted).backgroundColor, "rgba(0, 0, 0, 0)"); 28 29 root.querySelector("#outer").className = "outer"; 30 assert_equals(window.getComputedStyle(slotted).backgroundColor, "rgb(255, 0, 0)"); 31 32 root.querySelector("#inner").className = "inner"; 33 assert_equals(window.getComputedStyle(slotted).backgroundColor, "rgb(0, 128, 0)"); 34 }) 35 </script>