third_party/WebKit/LayoutTests/fast/repaint/resources/window-resize-repaint.js

   1 var testSizes = [
   2     { width: 200, height: 200 }, // initial size
   3     { width: 200, height: 300 }, // height increase
   4     { width: 300, height: 300 }, // width increase
   5     { width: 300, height: 250 }, // height decrease
   6     { width: 250, height: 250 }  // width decrease
   7     // Tests can add more testSizes.
   8 ];
   9
  10 var sizeIndex = 0;
  11
  12 function repaintTest() {
  13     window.resizeTo(testSizes[sizeIndex].width, testSizes[sizeIndex].height);
  14 }
  15
  16 if (window.internals) {
  17     internals.settings.setOverlayScrollbarsEnabled(true);
  18     internals.settings.setMockScrollbarsEnabled(true);
  19 }
  20
  21 if (window.testRunner) {
  22     testRunner.useUnfortunateSynchronousResizeMode();
  23     testRunner.dumpAsText();
  24
  25     window.onload = function() {
  26         window.resizeTo(testSizes[0].width, testSizes[0].height);
  27
  28         var repaintRects = "";
  29         for (sizeIndex = 1; sizeIndex < testSizes.length; ++sizeIndex) {
  30             document.body.offsetTop;
  31             internals.startTrackingRepaints(document);
  32             repaintTest();
  33             document.body.offsetTop;
  34             repaintRects += internals.layerTreeAsText(document, window.internals.LAYER_TREE_INCLUDES_REPAINT_RECTS | window.internals.LAYER_TREE_INCLUDES_PAINT_INVALIDATION_OBJECTS);
  35             internals.stopTrackingRepaints(document);
  36         }
  37         testRunner.setCustomTextOutput(repaintRects);
  38     }
  39 }