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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <!-- | 2 <!-- |
3 This test verifies that a fixed position element inside an iframe paints when | 3 This test verifies that a fixed position element inside an iframe paints when |
4 it comes into view due to the iframe increasing in size. | 4 it comes into view due to the iframe increasing in size. |
5 | 5 |
6 If this test passes, you should see a green square. | 6 If this test passes, you should see a green square. |
7 --> | 7 --> |
8 <html> | 8 <html> |
9 <head> | 9 <head> |
10 <style> | 10 <style> |
11 #iframe-containing-fixed-position-element { | 11 #iframe-containing-fixed-position-element { |
12 background: red; | 12 background: red; |
13 width: 100px; | 13 width: 100px; |
14 height: 0; | 14 height: 0; |
15 border: 0; | 15 border: 0; |
16 } | 16 } |
17 </style> | 17 </style> |
18 <script src="../../resources/run-after-display.js"></script> | 18 <script src="../../resources/run-after-display.js"></script> |
19 <script> | 19 <script> |
20 if (window.testRunner) | 20 if (window.testRunner) |
21 testRunner.waitUntilDone(); | 21 testRunner.waitUntilDone(); |
22 | 22 |
23 if (window.internals) { | 23 if (window.internals) |
24 window.internals.settings.setAcceleratedCompositingForFixedPositionE
nabled(true); | 24 window.internals.settings.setAcceleratedCompositingForFixedPositionE
nabled(true); |
25 window.internals.settings.setFixedPositionCreatesStackingContext(tru
e); | |
26 } | |
27 | 25 |
28 function runTest() | 26 function runTest() |
29 { | 27 { |
30 // Initially, the fixed position element in the iframe will not | 28 // Initially, the fixed position element in the iframe will not |
31 // paint because the iframe has zero height. | 29 // paint because the iframe has zero height. |
32 runAfterDisplay(function() { | 30 runAfterDisplay(function() { |
33 // Give the iframe a non-zero height. The fixed position element | 31 // Give the iframe a non-zero height. The fixed position element |
34 // inside the iframe should paint now. | 32 // inside the iframe should paint now. |
35 var iframeElement = document.getElementById("iframe-containing-f
ixed-position-element"); | 33 var iframeElement = document.getElementById("iframe-containing-f
ixed-position-element"); |
36 iframeElement.style.height = "100px"; | 34 iframeElement.style.height = "100px"; |
37 | 35 |
38 if (window.testRunner) | 36 if (window.testRunner) |
39 testRunner.notifyDone(); | 37 testRunner.notifyDone(); |
40 }); | 38 }); |
41 } | 39 } |
42 </script> | 40 </script> |
43 </head> | 41 </head> |
44 <body onload="runTest()"> | 42 <body onload="runTest()"> |
45 <iframe id="iframe-containing-fixed-position-element" src="resources/subfram
e-with-fixed-position-element.html"></iframe> | 43 <iframe id="iframe-containing-fixed-position-element" src="resources/subfram
e-with-fixed-position-element.html"></iframe> |
46 </body> | 44 </body> |
47 </html> | 45 </html> |
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