LayoutTests/compositing/layer-creation/fixed-position-out-of-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-out-of-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: Created 7 years, 8 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 13 matching lines...) Expand all Loading...
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 testRunner.notifyDone();	28 testRunner.notifyDone();

29 }, false);	29 }, false);

30 }	30 }

31 </script>	31 </script>

32 </head>	32 </head>

33	33

34 <body>	34 <!-- Fixed position elements may skip compositing without a scrollable

	35 ancestor. To make sure this test covers the intended scenario, we have to force

	36 something (like the FrameView) to be scrolling, i.e. make a tall body element. - ->

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

35 <pre id="result"></pre>	38 <pre id="result"></pre>

36 </body>	39 </body>

37 </html>	40 </html>

38	41

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