| <!doctype HTML> |
| <html> |
| <meta charset="utf8"> |
| <title>Content Visibility: nested forced layouts</title> |
| <link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility"> |
| <meta name="assert" content="nested content-visibility items are all processed when layout is forced"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <style> |
| body, html { |
| padding: 0; |
| margin: 0; |
| } |
| .spacer { |
| height: 3000px; |
| } |
| .target { |
| width: 12px; |
| height: 34px; |
| |
| position: relative; |
| left: 5px; |
| top: 7px; |
| } |
| |
| .hidden { |
| content-visibility: hidden; |
| } |
| |
| .will-hide { |
| contain: style; |
| contain: size; |
| contain: layout; |
| contain: paint; |
| } |
| </style> |
| |
| <div class=spacer></div> |
| |
| <div class="will-hide"> |
| <div id=one>A line of a certain length...</div> |
| </div> |
| |
| <div class="will-hide"> |
| <div class=target id=two></div> |
| </div> |
| |
| <div class="will-hide"> |
| <div class=target id=three></div> |
| </div> |
| |
| <div class="will-hide"> |
| <div class="will-hide"> |
| <div class=target id=four></div> |
| </div> |
| </div> |
| |
| <div class="will-hide"> |
| <div class="will-hide"> |
| <div class="will-hide"> |
| <div class="will-hide"> |
| <div class="will-hide"> |
| <div class=target id=five></div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| |
| <script> |
| function hideContent() { |
| document |
| .querySelectorAll('.will-hide') |
| .forEach(content => content.classList.add("hidden")); |
| } |
| |
| function showContent() { |
| document |
| .querySelectorAll('.will-hide') |
| .forEach(content => content.classList.remove("hidden")); |
| } |
| |
| const ids = ["one", "two", "three", "four", "five"]; |
| for (let i = 0; i < ids.length; ++i) { |
| test(() => { |
| const expectedRect = document.getElementById(ids[i]).getClientRects()[0]; |
| const expectedBoundingRect = document.getElementById(ids[i]).getBoundingClientRect(); |
| hideContent(); |
| |
| const rect = document.getElementById(ids[i]).getClientRects()[0]; |
| assert_equals(rect.width, expectedRect.width, `width for "${ids[i]}"`); |
| assert_equals(rect.height, expectedRect.height, `height for "${ids[i]}`); |
| |
| const boundingRect = document.getElementById(ids[i]).getClientRects()[0]; |
| assert_equals(boundingRect.width, expectedBoundingRect.width, `width for "${ids[i]}"`); |
| assert_equals(boundingRect.height, expectedBoundingRect.height, `height for "${ids[i]}`); |
| |
| showContent(); |
| }, `${ids[i]}.getBoundingClientRect(): `); |
| } |
| </script> |
| </html> |
