LayoutTests/compositing/layer-creation/fixed-position-in-view-dynamic.html - Issue 13828004: Avoid compositing fixed-position elements if they cannot scroll

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Side by Side Diff: LayoutTests/compositing/layer-creation/fixed-position-in-view-dynamic.html

Issue 13828004: Avoid compositing fixed-position elements if they cannot scroll (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Rebased and addressed feedback Created 7 years, 7 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2	2

3 <html>	3 <html>

4 <head>	4 <head>

5 <style>	5 <style>

6 .fixed {	6 .fixed {

7 position: fixed;	7 position: fixed;

8 width: 10px;	8 width: 10px;

9 height: 10px;	9 height: 10px;

10 top: 100px;	10 top: 100px;

(...skipping 12 matching lines...) Expand all Loading...
23 document.body.appendChild(fixed);	23 document.body.appendChild(fixed);

24 document.body.offsetHeight;	24 document.body.offsetHeight;

25 fixed.className = "fixed";	25 fixed.className = "fixed";

26 var mainThreadScrollingReasons = internals.mainThreadScrollingReasons(do cument);	26 var mainThreadScrollingReasons = internals.mainThreadScrollingReasons(do cument);

27 document.getElementById("result").innerText = !mainThreadScrollingReason s ? "PASS" : "FAIL: " + mainThreadScrollingReasons;	27 document.getElementById("result").innerText = !mainThreadScrollingReason s ? "PASS" : "FAIL: " + mainThreadScrollingReasons;

28 }, false);	28 }, false);

29 }	29 }

30 </script>	30 </script>

31 </head>	31 </head>

32	32

33 <body>	33 <!-- Fixed position elements may skip compositing without a scrollable

	34 ancestor. To make sure this test covers the intended scenario, we force the

	35 body element to be tall, so that the FrameView is scrolling. -->

	36 <body style="height: 4000px;">

34 <pre id="result"></pre>	37 <pre id="result"></pre>

35 </body>	38 </body>

36 </html>	39 </html>

37	40

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