grid-container-change-named-grid-recompute-child-positions-001.html (3939B)
1 <!DOCTYPE html> 2 <html> 3 <title>CSS Grid: Change named grid lines.</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 updating the named grid lines definitions in grid-template-{rows|columns} 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 href="/css/support/alignment.css" rel="stylesheet"> 10 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css"/> 11 <style> 12 .grid { 13 grid-auto-flow: row dense; 14 } 15 #firstGridItem { 16 grid-row: auto; 17 grid-column: column; 18 } 19 20 #secondGridItem { 21 grid-row: row; 22 grid-column: auto; 23 } 24 25 #thirdGridItem { 26 grid-row: auto; 27 grid-column: auto; 28 } 29 </style> 30 <script src="/resources/testharness.js"></script> 31 <script src="/resources/testharnessreport.js"></script> 32 <script src="/resources/check-layout-th.js"></script> 33 <script> 34 function testGridDefinitions(gridTemplateRows, gridTemplateColumns, firstGridItemData, secondGridItemData, thirdGridItemData) 35 { 36 var gridElement = document.getElementsByClassName("grid")[0]; 37 gridElement.style.gridTemplateRows = gridTemplateRows; 38 gridElement.style.gridTemplateColumns = gridTemplateColumns; 39 40 var firstGridItem = document.getElementById("firstGridItem"); 41 firstGridItem.setAttribute("data-expected-width", firstGridItemData.width); 42 firstGridItem.setAttribute("data-expected-height", firstGridItemData.height); 43 firstGridItem.setAttribute("data-offset-x", firstGridItemData.x); 44 firstGridItem.setAttribute("data-offset-y", firstGridItemData.y); 45 46 var secondGridItem = document.getElementById("secondGridItem"); 47 secondGridItem.setAttribute("data-expected-width", secondGridItemData.width); 48 secondGridItem.setAttribute("data-expected-height", secondGridItemData.height); 49 secondGridItem.setAttribute("data-offset-x", secondGridItemData.x); 50 secondGridItem.setAttribute("data-offset-y", secondGridItemData.y); 51 52 var thirdGridItem = document.getElementById("thirdGridItem"); 53 thirdGridItem.setAttribute("data-expected-width", thirdGridItemData.width); 54 thirdGridItem.setAttribute("data-expected-height", thirdGridItemData.height); 55 thirdGridItem.setAttribute("data-offset-x", thirdGridItemData.x); 56 thirdGridItem.setAttribute("data-offset-y", thirdGridItemData.y); 57 58 checkLayout(".grid", false); 59 } 60 61 function testChangingGridDefinitions() 62 { 63 testGridDefinitions('10px [row] 20px', '30px [column]', { 'width': '0', 'height': '10', 'x': '30', 'y': '0' }, { 'width': '30', 'height': '20', 'x': '0', 'y': '10' }, { 'width': '30', 'height': '10', 'x': '0', 'y': '0' }); 64 testGridDefinitions('10px [row] 20px', '30px', { 'width': '0', 'height': '10', 'x': '30', 'y': '0' }, { 'width': '30', 'height': '20', 'x': '0', 'y': '10' }, { 'width': '30', 'height': '10', 'x': '0', 'y': '0' }); 65 testGridDefinitions('10px 20px [row]', '30px', { 'width': '0', 'height': '10', 'x': '30', 'y': '0' }, { 'width': '30', 'height': '0', 'x': '0', 'y': '30' }, { 'width': '30', 'height': '10', 'x': '0', 'y': '0' }); 66 testGridDefinitions('10px 20px [row]', '30px [column]', { 'width': '0', 'height': '10', 'x': '30', 'y': '0' }, { 'width': '30', 'height': '0', 'x': '0', 'y': '30' }, { 'width': '30', 'height': '10', 'x': '0', 'y': '0' }); 67 done(); 68 } 69 70 </script> 71 <script type="text/javascript"> 72 setup({ explicit_done: true }); 73 </script> 74 <body onload="document.fonts.ready.then(() => { testChangingGridDefinitions(); })"> 75 <div style="position: relative"> 76 <div class="grid justifyContentStart"> 77 <div class="sizedToGridArea" id="firstGridItem"></div> 78 <div class="sizedToGridArea" id="secondGridItem"></div> 79 <div class="sizedToGridArea" id="thirdGridItem"></div> 80 </div> 81 </div> 82 83 </body> 84 </html>