grid-container-change-grid-tracks-recompute-child-positions-001.html (4390B)
1 <!DOCTYPE html> 2 <html> 3 <title>CSS Grid: Grid tracks changes recomputed child positions.</title> 4 <link rel="author" title="Julien Chaffraix" href="mailto:jchaffraix@chromium.org"/> 5 <link rel="help" href="https://drafts.csswg.org/css-grid/#placement"/> 6 <meta name="assert" content="Checks that grid-template-{rows|columns} dynamic updates recomputes the positions of automatically placed grid items."/> 7 <link rel="issue" href="https://crbug.com/248151"/> 8 <link href="/css/support/grid.css" rel="stylesheet"/> 9 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css"/> 10 <style> 11 .grid { 12 grid-auto-flow: row dense; 13 grid-auto-rows: 5px; 14 grid-auto-columns: 5px; 15 } 16 #firstGridItem { 17 grid-row: auto; 18 grid-column: 1; 19 } 20 21 #secondGridItem { 22 grid-row: 1; 23 grid-column: auto; 24 } 25 26 #thirdGridItem { 27 grid-row: auto; 28 grid-column: auto; 29 } 30 </style> 31 <script src="/resources/testharness.js"></script> 32 <script src="/resources/testharnessreport.js"></script> 33 <script src="/resources/check-layout-th.js"></script> 34 <script> 35 function testGridDefinitions(gridTemplateRows, gridTemplateColumns, gridTemplateAreas, firstGridItemData, secondGridItemData, thirdGridItemData) 36 { 37 var gridElement = document.getElementsByClassName("grid")[0]; 38 gridElement.style.gridTemplateRows = gridTemplateRows; 39 gridElement.style.gridTemplateColumns = gridTemplateColumns; 40 gridElement.style.gridTemplateAreas = gridTemplateAreas; 41 42 var firstGridItem = document.getElementById("firstGridItem"); 43 firstGridItem.setAttribute("data-expected-width", firstGridItemData.width); 44 firstGridItem.setAttribute("data-expected-height", firstGridItemData.height); 45 firstGridItem.setAttribute("data-offset-x", firstGridItemData.x); 46 firstGridItem.setAttribute("data-offset-y", firstGridItemData.y); 47 48 var secondGridItem = document.getElementById("secondGridItem"); 49 secondGridItem.setAttribute("data-expected-width", secondGridItemData.width); 50 secondGridItem.setAttribute("data-expected-height", secondGridItemData.height); 51 secondGridItem.setAttribute("data-offset-x", secondGridItemData.x); 52 secondGridItem.setAttribute("data-offset-y", secondGridItemData.y); 53 54 var thirdGridItem = document.getElementById("thirdGridItem"); 55 thirdGridItem.setAttribute("data-expected-width", thirdGridItemData.width); 56 thirdGridItem.setAttribute("data-expected-height", thirdGridItemData.height); 57 thirdGridItem.setAttribute("data-offset-x", thirdGridItemData.x); 58 thirdGridItem.setAttribute("data-offset-y", thirdGridItemData.y); 59 60 checkLayout(".grid", false); 61 } 62 63 function testChangingGridDefinitions() 64 { 65 testGridDefinitions('10px 20px', '10px', '', { 'width': '10', 'height': '20', 'x': '0', 'y': '10' }, { 'width': '10', 'height': '10', 'x': '0', 'y': '0' }, { 'width': '10', 'height': '5', 'x': '0', 'y': '30' }); 66 testGridDefinitions('10px', '10px', '"a"', { 'width': '10', 'height': '5', 'x': '0', 'y': '10' }, { 'width': '10', 'height': '10', 'x': '0', 'y': '0' }, { 'width': '10', 'height': '5', 'x': '0', 'y': '15' }); 67 testGridDefinitions('10px', '10px', '"a ."', { 'width': '10', 'height': '5', 'x': '0', 'y': '10' }, { 'width': '10', 'height': '10', 'x': '0', 'y': '0' }, { 'width': '5', 'height': '10', 'x': '10', 'y': '0' }); 68 testGridDefinitions('50px', '30px 40px', '', { 'width': '30', 'height': '5', 'x': '0', 'y': '50' }, { 'width': '30', 'height': '50', 'x': '0', 'y': '0' }, { 'width': '40', 'height': '50', 'x': '30', 'y': '0' }); 69 testGridDefinitions('50px', '60px', '', { 'width': '60', 'height': '5', 'x': '0', 'y': '50' }, { 'width': '60', 'height': '50', 'x': '0', 'y': '0' }, { 'width': '60', 'height': '5', 'x': '0', 'y': '55' }); 70 testGridDefinitions('50px 100px 150px', '60px', '', { 'width': '60', 'height': '100', 'x': '0', 'y': '50' }, { 'width': '60', 'height': '50', 'x': '0', 'y': '0' }, { 'width': '60', 'height': '150', 'x': '0', 'y': '150' }); 71 72 done(); 73 } 74 75 </script> 76 <script type="text/javascript"> 77 setup({ explicit_done: true }); 78 </script> 79 <body onload="document.fonts.ready.then(() => { testChangingGridDefinitions(); })"> 80 <div style="position: relative"> 81 <div class="grid"> 82 <div class="sizedToGridArea" id="firstGridItem"></div> 83 <div class="sizedToGridArea" id="secondGridItem"></div> 84 <div class="sizedToGridArea" id="thirdGridItem"></div> 85 </div> 86 </div> 87 </body> 88 </html>