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comparison: layout/base/tests/chrome/transformed_scrolling_repaints_3_window.html
layout/base/tests/chrome/transformed_scrolling_repaints_3_window.html
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| -1:000000000000 | 0:d135b77e67c1 |
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| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>Test that scaled elements with scrolled contents don't repaint unnecessarily when we scroll inside them</title> | |
| 5 <script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/paint_listener.js"></script> | |
| 6 </head> | |
| 7 <!-- Need a timeout here to allow paint unsuppression before we start the test --> | |
| 8 <body onload="setTimeout(startTest,0)" style="background:white;"> | |
| 9 <iframe id="t" style="-moz-transform: scale(0.48979); -moz-transform-origin:top left; width:500px; height:300px;" | |
| 10 src="data:text/html, | |
| 11 <body style='background:yellow;'> | |
| 12 <p>My graduate adviser was the most patient, understanding, and helpful | |
| 13 person I've ever had the joy of dealing with. That doesn't change that | |
| 14 there are some real dicks out there, and some of them happen to be | |
| 15 scientists. | |
| 16 <p id='e'>My graduate adviser was the most patient, understanding, and helpful | |
| 17 person I've ever had the joy of dealing with. That doesn't change that | |
| 18 there are some real dicks out there, and some of them happen to be | |
| 19 scientists. | |
| 20 <p>My graduate adviser was the most patient, understanding, and helpful | |
| 21 person I've ever had the joy of dealing with. That doesn't change that | |
| 22 there are some real dicks out there, and some of them happen to be | |
| 23 scientists. | |
| 24 <p>My graduate adviser was the most patient, understanding, and helpful | |
| 25 person I've ever had the joy of dealing with. That doesn't change that | |
| 26 there are some real dicks out there, and some of them happen to be | |
| 27 scientists. | |
| 28 <p>My graduate adviser was the most patient, understanding, and helpful | |
| 29 person I've ever had the joy of dealing with. That doesn't change that | |
| 30 there are some real dicks out there, and some of them happen to be | |
| 31 scientists. | |
| 32 <p>My graduate adviser was the most patient, understanding, and helpful | |
| 33 person I've ever had the joy of dealing with. That doesn't change that | |
| 34 there are some real dicks out there, and some of them happen to be | |
| 35 scientists. | |
| 36 </body>"></iframe> | |
| 37 <pre id="test"> | |
| 38 <script type="application/javascript"> | |
| 39 var SimpleTest = window.opener.wrappedJSObject.SimpleTest; | |
| 40 var SpecialPowers = window.opener.wrappedJSObject.SpecialPowers; | |
| 41 var is = window.opener.wrappedJSObject.is; | |
| 42 | |
| 43 var smoothScrollPref = "general.smoothScroll"; | |
| 44 SpecialPowers.setBoolPref(smoothScrollPref, false); | |
| 45 | |
| 46 function startTest() { | |
| 47 var t = document.getElementById("t"); | |
| 48 var e = t.contentDocument.getElementById("e"); | |
| 49 t.contentWindow.scrollTo(0,0); | |
| 50 var utils = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor). | |
| 51 getInterface(Components.interfaces.nsIDOMWindowUtils); | |
| 52 var iterations = 0; | |
| 53 | |
| 54 function nextIteration() { | |
| 55 var painted = utils.checkAndClearPaintedState(e); | |
| 56 is(painted, false, "Fully-visible scrolled element should not have been painted"); | |
| 57 if (++iterations == 10) { | |
| 58 SpecialPowers.clearUserPref(smoothScrollPref); | |
| 59 SimpleTest.finish(); | |
| 60 window.close(); | |
| 61 } else { | |
| 62 t.contentWindow.scrollByLines(1); | |
| 63 waitForAllPaintsFlushed(nextIteration); | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 // Do a couple of scrolls to ensure we've triggered activity heuristics. | |
| 68 waitForAllPaintsFlushed(function () { | |
| 69 t.contentWindow.scrollByLines(1); | |
| 70 waitForAllPaintsFlushed(function () { | |
| 71 t.contentWindow.scrollByLines(1); | |
| 72 waitForAllPaintsFlushed(function () { | |
| 73 // Clear paint state now and scroll again. | |
| 74 utils.checkAndClearPaintedState(e); | |
| 75 t.contentWindow.scrollByLines(1); | |
| 76 waitForAllPaintsFlushed(nextIteration); | |
| 77 }); | |
| 78 }); | |
| 79 }); | |
| 80 } | |
| 81 </script> | |
| 82 </pre> | |
| 83 </body> | |
| 84 </html> |
