third_party/WebKit/LayoutTests/paint/invalidation/spv2/should-not-clip-composited-overflow-scrolling-layer.html

   1 <!-- Based on compositing/repaint/should-not-clip-composited-overflow-scrolling-layer.html -->
   2 <!DOCTYPE HTML>
   3 <script src="resources/paint-invalidation-test.js"></script>
   4 <script>
   5 if (window.internals)
   6   internals.settings.setPreferCompositingToLCDTextEnabled(true);
   7 window.expectedPaintInvalidationObjects = [
   8     "LayoutBlockFlow DIV id='content'",
   9     "LayoutBlockFlow DIV id='content'",
  10     "##ALL##",
  11     "##ALL##",
  12 ];
  13 function paintInvalidationTest() {
  14   document.getElementById('content').style.backgroundColor = 'green';
  15   var container = document.getElementById('container');
  16   container.scrollLeft = 2000;
  17   container.scrollTop = 2000;
  18 }
  19 window.onload = runPaintInvalidationTest;
  20 </script>
  21 <style>
  22 #container {
  23   width: 500px;
  24   height: 500px;
  25   overflow: scroll;
  26 }
  27 #content {
  28   width: 5000px;
  29   height: 5000px;
  30   background-color: red;
  31 }
  32 </style>
  33 <div id="container">
  34   <div id="content">
  35   Tests invalidation of scrolling layer. Passes if the repaint rect is not clipped,
  36   and there is no red when the scrolling container is scrolled.<br>
  37   Note for manual testing: must run with --enable-prefer-compositing-to-lcd-text
  38   on non-high-dpi machines to enable composited scrolling.
  39   </div>
  40 </div>