src/third_party/WebKit/LayoutTests/fast/repaint/resources/text-based-repaint.js

   1 // Asynchronous tests should manually call finishRepaintTest at the appropriate time.
   2 window.testIsAsync = false;
   3 window.outputRepaintRects = true;
   4
   5 if (window.internals)
   6     window.internals.settings.setForceCompositingMode(true)
   7
   8 function runRepaintTest()
   9 {
  10     if (!window.testRunner || !window.internals) {
  11         setTimeout(repaintTest, 100);
  12         return;
  13     }
  14
  15     if (window.enablePixelTesting)
  16         testRunner.dumpAsTextWithPixelResults();
  17     else
  18         testRunner.dumpAsText();
  19
  20     if (window.testIsAsync)
  21         testRunner.waitUntilDone();
  22
  23     forceStyleRecalc();
  24
  25     window.internals.startTrackingRepaints(document);
  26
  27     repaintTest();
  28
  29     if (!window.testIsAsync)
  30         finishRepaintTest();
  31 }
  32
  33 function runRepaintAndPixelTest()
  34 {
  35     window.enablePixelTesting = true;
  36     runRepaintTest();
  37 }
  38
  39 function forceStyleRecalc()
  40 {
  41     if (document.body)
  42         document.body.offsetTop;
  43     else if (document.documentElement)
  44         document.documentElement.offsetTop;
  45 }
  46
  47 function finishRepaintTest()
  48 {
  49     // Force a style recalc.
  50     forceStyleRecalc();
  51
  52     var repaintRects = window.internals.layerTreeAsText(document, window.internals.LAYER_TREE_INCLUDES_REPAINT_RECTS);
  53
  54     internals.stopTrackingRepaints(document);
  55
  56     if (window.outputRepaintRects)
  57         testRunner.setCustomTextOutput(repaintRects);
  58
  59     if (window.afterTest)
  60         window.afterTest();
  61
  62     if (window.testIsAsync)
  63         testRunner.notifyDone();
  64 }