invalidation-complex-selector-forward.html (1693B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <title>CSS Shadow Parts - Invalidation complex selector forward</title> 5 <meta href="mailto:fergal@chromium.org" rel="author" title="Fergal Daly"> 6 <link href="http://www.google.com/" rel="author" title="Google"> 7 <link href="https://drafts.csswg.org/css-shadow-parts/" rel="help"> 8 <script src="/resources/testharness.js"></script> 9 <script src="/resources/testharnessreport.js"></script> 10 <script src="support/shadow-helper.js"></script> 11 </head> 12 <body> 13 <style>#elem #c-e-outer::part(part-forwarded) { color: red; }</style> 14 <script>installCustomElement("custom-element-inner", "custom-element-inner-template");</script> 15 <template id="custom-element-inner-template"> 16 <style>span { color: green; }</style> 17 <span id="part" part="partp">This text</span> 18 </template> 19 <script>installCustomElement("custom-element-outer", "custom-element-outer-template");</script> 20 <template id="custom-element-outer-template"><custom-element-inner id="c-e-inner" exportparts="partp: part-forwarded"></custom-element-inner></template> 21 The following text should be green: 22 <div id="elem"><custom-element-outer id="c-e-outer"></custom-element-outer></div> 23 <script> 24 "use strict"; 25 test(function() { 26 const part = getElementByShadowIds(document, ["c-e-outer", "c-e-inner", "part"]); 27 const before = window.getComputedStyle(part).color; 28 document.getElementById("elem").setAttribute("id", "new-elem"); 29 const after = window.getComputedStyle(part).color; 30 assert_not_equals(before, after); 31 }, "Part in selected host changed color"); 32 </script> 33 </body> 34 </html>