third_party/WebKit/LayoutTests/paint/invalidation/spv2/grid-element-change-columns-repaint.html

   1 <!-- Based on fast/css-grid-layout/grid-element-change-columns-repaint.html -->
   2 <!DOCTYPE html>
   3 <html>
   4 <script src="resources/paint-invalidation-test.js"></script>
   5 <script>
   6 window.expectedPaintInvalidationObjects = [
   7     "LayoutGrid DIV class='grid'",
   8     "LayoutBlockFlow DIV class='sizedToGridArea'",
   9 ];
  10 function paintInvalidationTest()
  11 {
  12     var gridElement = document.getElementsByClassName("grid")[0];
  13     gridElement.style.gridTemplateColumns = "minmax(50px, 180px) 100px 100px";
  14 }
  15 window.addEventListener("load", runPaintInvalidationTest, false);
  16 </script>
  17 <link href="../../../fast/css-grid-layout/resources/grid.css" rel="stylesheet">
  18 <style>
  19 body {
  20     font: 10px/1 Ahem;
  21 }
  22
  23 .grid {
  24     width: -webkit-fit-content;
  25     grid-template-rows: 50px;
  26     grid-template-columns: minmax(100px, 180px) 100px minmax(50px, 100px);
  27 }
  28 .sizedToGridArea {
  29     background-color: purple;
  30 }
  31 </style>
  32 <body>
  33 <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>
  34 <div class="constrainedContainer">
  35     <div class="grid">
  36         <div class="sizedToGridArea"></div>
  37     </div>
  38 </div>
  39 </body>
  40 </html>