| <!doctype html> |
| <title>CSS Shadow Parts - Exporting multiple shadow parts</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez"> |
| <link rel="author" href="https://mozilla.org" title="Mozilla"> |
| <link rel="help" href="https://drafts.csswg.org/css-shadow-parts/"> |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1618509"> |
| <style> |
| ::part(inner-part) { |
| color: red; |
| background: blue; |
| width: 100px; |
| height: 100px; |
| } |
| ::part(inner-part-alias) { |
| color: green; |
| } |
| .change-1::part(inner-part) { |
| background: green; |
| } |
| |
| .change-2::part(inner-part-alias) { |
| color: blue; |
| } |
| </style> |
| <div id="outer"></div> |
| <script> |
| test(function() { |
| let outer = document.getElementById("outer"); |
| outer.attachShadow({ mode: "open" }).innerHTML = ` |
| <div exportparts="inner-part, inner-part: inner-part-alias"></div> |
| `; |
| |
| let inner = outer.shadowRoot.querySelector("div"); |
| inner.attachShadow({ mode: "open" }).innerHTML = ` |
| <div part="inner-part"></div> |
| `; |
| |
| let innerPart = inner.shadowRoot.querySelector("div"); |
| assert_equals( |
| getComputedStyle(innerPart).color, |
| "rgb(0, 128, 0)", |
| "color should be green from ::part(inner-part-alias) rule" |
| ); |
| assert_equals( |
| getComputedStyle(innerPart).backgroundColor, |
| "rgb(0, 0, 255)", |
| "background should be blue from ::part(inner-part) rule" |
| ); |
| |
| outer.classList.add("change-1"); |
| assert_equals( |
| getComputedStyle(innerPart).color, |
| "rgb(0, 128, 0)", |
| "color should be green from ::part(inner-part-alias) rule" |
| ); |
| assert_equals( |
| getComputedStyle(innerPart).backgroundColor, |
| "rgb(0, 128, 0)", |
| "background should be green from .change-1::part(inner-part) rule" |
| ); |
| |
| outer.classList.add("change-2"); |
| assert_equals( |
| getComputedStyle(innerPart).color, |
| "rgb(0, 0, 255)", |
| "color should be blue from .change-2::part(inner-part-alias) rule" |
| ); |
| assert_equals( |
| getComputedStyle(innerPart).backgroundColor, |
| "rgb(0, 128, 0)", |
| "background should be green from .change-1::part(inner-part) rule" |
| ); |
| }, "Forwarding part under multiple names should work"); |
| </script> |
