| <!doctype html> |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1561283"> |
| <link rel="help" href="https://drafts.csswg.org/css-display/#valdef-display-contents"> |
| <link rel="help" href="https://drafts.csswg.org/css-grid/#grid-item-display"> |
| <link rel="author" href="https://mozilla.org" title="Mozilla"> |
| <link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez"> |
| <link rel="author" href="mailto:obrufau@igalia.com" title="Oriol Brufau"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| .grid { display: grid } |
| </style> |
| <div style="display: grid"> |
| <span id="grid-child"> |
| <span></span> |
| </div> |
| </div> |
| <div id="grid-to-block" style="display: grid"> |
| <div style="display: contents"> |
| <div style="display: contents"> |
| <button>button1</button> |
| <button id="deblockified">button2</button> |
| </div> |
| </div> |
| </div> |
| <div id="block-to-grid" style="display: block"> |
| <div style="display: contents"> |
| <div style="display: contents"> |
| <button>button1</button> |
| <button id="blockified">button2</button> |
| </div> |
| </div> |
| </div> |
| <script> |
| function display(el) { |
| return getComputedStyle(el).display; |
| } |
| test(function() { |
| let child = document.getElementById("grid-child"); |
| let grandChild = child.firstElementChild; |
| assert_equals(display(child), "block", "Grid child should get blockified"); |
| assert_equals(display(grandChild), "inline", "Grid grand-child should not get initially blockified"); |
| child.style.display = "contents"; |
| assert_equals(display(child), "contents", "No reason for it not to become display: contents"); |
| assert_equals(display(grandChild), "block", "Grid grand-child with display: contents parent should get blockified"); |
| child.style.display = ""; |
| assert_equals(display(child), "block", "Grid child should get blockified"); |
| assert_equals(display(grandChild), "inline", "Grid grand-child should get un-blockified when its parent's display stops being `contents`"); |
| }, "Dynamic changes to `display` causing blockification of children are handled correctly"); |
| |
| test(() => { |
| let gridToBlock = document.getElementById("grid-to-block"); |
| let itemGrandChild = document.getElementById("deblockified"); |
| |
| assert_equals(display(gridToBlock), "grid", "Container should be a grid"); |
| assert_equals(display(itemGrandChild), "block", "Item should have been blockified"); |
| gridToBlock.style.display = "block"; |
| assert_equals(display(gridToBlock), "block", "Container should become a block"); |
| assert_equals(display(itemGrandChild), "inline-block", "Item should get de-blockified"); |
| }, "Dynamic changes to `display` from `grid` to `block` should cause children to get de-blockified despite being children of `display: contents` elements"); |
| |
| test(() => { |
| let blockToGrid = document.getElementById("block-to-grid"); |
| let itemGrandChild = document.getElementById("blockified"); |
| |
| assert_equals(display(blockToGrid), "block", "Container should be a block"); |
| assert_equals(display(itemGrandChild), "inline-block", "Item should not have been blockified"); |
| blockToGrid.style.display = "grid"; |
| assert_equals(display(blockToGrid), "grid", "Container should become a grid"); |
| assert_equals(display(itemGrandChild), "block", "Item should get blockified"); |
| }, "Dynamic changes to `display` from `block` to `grid` should cause children to get blockified despite being children of `display: contents` elements") |
| </script> |
