src/third_party/WebKit/LayoutTests/fast/css-grid-layout/grid-element-change-columns-repaint.html

   1 <!DOCTYPE html>
   2 <html>
   3 <script src="../repaint/resources/text-based-repaint.js"></script>
   4 <script>
   5 if (window.testRunner)
   6     testRunner.overridePreference("WebKitCSSGridLayoutEnabled", 1);
   7
   8 function repaintTest()
   9 {
  10     var gridElement = document.getElementsByClassName("grid")[0];
  11     gridElement.style.gridTemplateColumns = "minmax(50px, 180px) 100px 100px";
  12 }
  13 window.addEventListener("load", runRepaintTest, false);
  14 </script>
  15 <link href="resources/grid.css" rel="stylesheet">
  16 <style>
  17 body {
  18     font: 10px/1 Ahem;
  19 }
  20
  21 .grid {
  22     width: -webkit-fit-content;
  23     grid-template-rows: 50px;
  24     grid-template-columns: minmax(100px, 180px) 100px minmax(50px, 100px);
  25 }
  26 .sizedToGridArea {
  27     background-color: purple;
  28 }
  29 </style>
  30 <body>
  31 <div> This test checks that changing the grid-template-columns lead to a repaint. The final grid element should be 250px * 50px, the grid item should be 50px * 50px. No trace of the elements before the grid-template-columns change should be seen.</div>
  32 <div class="constrainedContainer">
  33     <div class="grid">
  34         <div class="sizedToGridArea"></div>
  35     </div>
  36 </div>
  37 </body>
  38 </html>