layout/base/tests/chrome/test_prerendered_transforms.html@6474c204b198 (annotated)
layout/base/tests/chrome/test_prerendered_transforms.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | <!DOCTYPE HTML> |
| michael@0 | 2 | <html> |
| michael@0 | 3 | <head> |
| michael@0 | 4 | <title>Test that active transformed elements coming into view are prerendered so we don't have to redraw constantly</title> |
| michael@0 | 5 | <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> |
| michael@0 | 6 | <script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/paint_listener.js"></script> |
| michael@0 | 7 | <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/> |
| michael@0 | 8 | </head> |
| michael@0 | 9 | <body onload="startTest()"> |
| michael@0 | 10 | <div> |
| michael@0 | 11 | <div id="t" style="position:absolute; left:0; top:500px; -moz-transform: translatex(-100px); width:200px; height:100px; background:yellow;"> |
| michael@0 | 12 | <div style="text-align:right">Hello</div> |
| michael@0 | 13 | <div style="text-align:left">Kitty</div> |
| michael@0 | 14 | </div> |
| michael@0 | 15 | </div> |
| michael@0 | 16 | <pre id="test"> |
| michael@0 | 17 | <script type="application/javascript"> |
| michael@0 | 18 | SimpleTest.waitForExplicitFinish(); |
| michael@0 | 19 | |
| michael@0 | 20 | var t = document.getElementById("t"); |
| michael@0 | 21 | var utils = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor). |
| michael@0 | 22 | getInterface(Components.interfaces.nsIDOMWindowUtils); |
| michael@0 | 23 | |
| michael@0 | 24 | function startTest() { |
| michael@0 | 25 | // Do a couple of transform changes to ensure we've triggered activity heuristics |
| michael@0 | 26 | waitForAllPaintsFlushed(function () { |
| michael@0 | 27 | t.style.MozTransform = "translatex(-75px)"; |
| michael@0 | 28 | waitForAllPaintsFlushed(function () { |
| michael@0 | 29 | t.style.MozTransform = "translatex(-50px)"; |
| michael@0 | 30 | waitForAllPaintsFlushed(function () { |
| michael@0 | 31 | // Clear paint state now and move again. |
| michael@0 | 32 | utils.checkAndClearPaintedState(t); |
| michael@0 | 33 | // Don't move to 0 since that might trigger some special case that turns off transforms. |
| michael@0 | 34 | t.style.MozTransform = "translatex(-1px)"; |
| michael@0 | 35 | waitForAllPaintsFlushed(function () { |
| michael@0 | 36 | var painted = utils.checkAndClearPaintedState(t); |
| michael@0 | 37 | is(painted, false, "Transformed element should not have been painted"); |
| michael@0 | 38 | SimpleTest.finish(); |
| michael@0 | 39 | }); |
| michael@0 | 40 | }); |
| michael@0 | 41 | }); |
| michael@0 | 42 | }); |
| michael@0 | 43 | } |
| michael@0 | 44 | </script> |
| michael@0 | 45 | </pre> |
| michael@0 | 46 | </body> |
| michael@0 | 47 | </html> |
