| <!doctype html> |
| <title>Table parts sticky containers</title> |
| <script src='/resources/testharness.js'></script> |
| <script src='/resources/testharnessreport.js'></script> |
| <link rel="author" title="Aleks Totic" href="mailto:atotic@chromium.org" /> |
| <link rel="help" href="https://www.w3.org/TR/css-tables-3/" /> |
| <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/5020"/> |
| <style> |
| body { |
| margin: 0; |
| } |
| main * { |
| box-sizing: border-box; |
| } |
| |
| main .scroller { |
| width: 350px; |
| height: 302px; |
| overflow-y: scroll; |
| outline-offset: -1px; |
| outline: gray solid 1px; |
| } |
| main .padblock { |
| width: 300px; |
| height: 400px; |
| outline-offset: -2px; |
| outline: black dotted 2px; |
| } |
| main table { |
| border-spacing: 0; |
| } |
| |
| main td { |
| width: 100px; |
| height: 25px; |
| } |
| .sticky { |
| position:sticky; |
| top: 0; |
| background: rgba(0,255,0, 0.3); |
| } |
| |
| </style> |
| <main> |
| <div class="scroller"> |
| <div class="padblock">top</div> |
| <table> |
| <thead> |
| <tr> |
| <td>h:0,0</td> |
| <td>h:0,1</td> |
| <td>h:0,2</td> |
| </tr> |
| <tr > |
| <td>h:1,0</td> |
| <td >h:1,1</td> |
| <td>h:1,2</td> |
| </tr> |
| <tr> |
| <td>h:2,0</td> |
| <td>h:2,1</td> |
| <td>h:2,2</td> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td>b:0,0</td> |
| <td>b:0,1</td> |
| <td>b:0,2</td> |
| </tr> |
| <tr> |
| <td>b:1,0</td> |
| <td>b:1,1</td> |
| <td>b:1,2</td> |
| </tr> |
| <tr> |
| <td>b:2,0</td> |
| <td>b:2,1</td> |
| <td>b:2,2</td> |
| </tr> |
| </tbody> |
| <tfoot> |
| <tr> |
| <td>f:0,0</td> |
| <td>f:0,1</td> |
| <td>f:0,2</td> |
| </tr> |
| <tr> |
| <td>f:1,0</td> |
| <td>f:1,1</td> |
| <td>f:1,2</td> |
| </tr> |
| <tr> |
| <td>f:2,0</td> |
| <td>f:2,1</td> |
| <td>f:2,2</td> |
| </tr> |
| </tfoot> |
| </table> |
| <div class="padblock">bottom</div> |
| </div> |
| </main> |
| <script> |
| |
| function scrollTo(y) { |
| let scroller = document.querySelector("main .scroller"); |
| scroller.scrollTop = y; |
| } |
| |
| test( () => { |
| // Setup |
| let target = document.querySelector("main tbody tr:nth-child(2) td:nth-child(2)"); |
| let scroller = document.querySelector("main .scroller"); |
| target.classList.toggle("sticky"); |
| |
| // Tests |
| scrollTo(0); |
| assert_equals(target.getBoundingClientRect().top, 500, "intrinsic position"); |
| |
| scrollTo(600); |
| assert_equals(target.getBoundingClientRect().top, 0, "sticking to the table"); |
| |
| scrollTo(640); |
| assert_equals(target.getBoundingClientRect().top, -40, "sticking to the table bottom"); |
| |
| // Teardown |
| target.classList.toggle("sticky"); |
| }, "TD sticky container is table"); |
| |
| test( () => { |
| // Setup |
| let target = document.querySelector("main tbody tr:nth-child(2)"); |
| let scroller = document.querySelector("main .scroller"); |
| target.classList.toggle("sticky"); |
| |
| // Tests |
| scrollTo(0); |
| assert_equals(target.getBoundingClientRect().top, 500, "intrinsic position"); |
| |
| scrollTo(600); |
| assert_equals(target.getBoundingClientRect().top, 0, "sticking to the table"); |
| |
| scrollTo(640); |
| assert_equals(target.getBoundingClientRect().top, -40, "sticking to the table bottom"); |
| // Teardown |
| target.classList.toggle("sticky"); |
| }, "TR sticky container is table"); |
| |
| |
| test( () => { |
| // Setup |
| let target = document.querySelector("main tbody"); |
| let scroller = document.querySelector("main .scroller"); |
| target.classList.toggle("sticky"); |
| |
| // Tests |
| scrollTo(0); |
| assert_equals(target.getBoundingClientRect().top, 475, "intrinsic position"); |
| |
| scrollTo(550); |
| assert_equals(target.getBoundingClientRect().top, 0, "sticking to the table"); |
| |
| scrollTo(600); |
| assert_equals(target.getBoundingClientRect().top, -50, "sticking to the table bottom"); |
| |
| // Teardown |
| target.classList.toggle("sticky"); |
| }, "TBODY sticky container is table"); |
| |
| </script> |
