LayoutTests/compositing/layer-creation/fixed-position-under-transform.html - Issue 1298493003: Currently we only composite fixed position elements if we are on High DPI devices. This fix allows …

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Issue 1298493003: Currently we only composite fixed position elements if we are on High DPI devices. This fix allows … Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Update affected tests Created 5 years, 4 months ago

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

2 <html>	2 <html>

3 <head>	3 <head>

4 <style>	4 <style>

5 body {	5 body {

6 height: 5000px;	6 height: 5000px;

7 overflow-x: hidden;	7 overflow-x: hidden;

8 }	8 }

9	9

10 #transform {	10 #transform {

11 z-index: 0;	11 z-index: 0;

12 /* transform establishes a fixed pos container, so translate to make up for scroll offset so indicator is still underneath overlap */	12 /* transform establishes a fixed pos container, so translate to make up for scroll offset so indicator is still underneath overlap */

13 transform:translate3d(0px, 1000px, 0px);	13 transform:translate3d(0px, 1000px, 0px);

14 }	14 }

15	15

16 #indicator {	16 #indicator {

17 width: 256px;	17 width: 256px;

18 height: 256px;	18 height: 256px;

19 background-color: red;	19 background-color: rgba(255, 0, 0, 0.99);
	Ian Vollick 2015/08/21 14:40:43 Just to be sure I'm understanding you; you're chan Just to be sure I'm understanding you; you're changing these fixed pos elements to not be opaque so that they test the same old behavior? davidfox 2015/08/21 14:50:35 That's exactly correct. Show quoted text On 2015/08/21 14:40:43, vollick wrote: > Just to be sure I'm understanding you; you're changing these fixed pos elements > to not be opaque so that they test the same old behavior? That's exactly correct.
20 position: fixed;	20 position: fixed;

21 left: 100px;	21 left: 100px;

22 top: 100px;	22 top: 100px;

23 }	23 }

24	24

25 #overlap {	25 #overlap {

26 width: 500px;	26 width: 500px;

27 height: 500px;	27 height: 500px;

28 background-color: green;	28 background-color: rgba(0, 128, 0, 0.99);

29 position: fixed;	29 position: fixed;

30 left: 0px;	30 left: 0px;

31 top: 0px;	31 top: 0px;

32 }	32 }

33 </style>	33 </style>

34 <script>	34 <script>

35 function doTest() {	35 function doTest() {

36 window.scrollTo(0, 1000);	36 window.scrollTo(0, 1000);

37 if (window.testRunner) {	37 if (window.testRunner) {

38 document.getElementById('layertree').innerText = window.internals.la yerTreeAsText(document);	38 document.getElementById('layertree').innerText = window.internals.la yerTreeAsText(document);

39 testRunner.dumpAsTextWithPixelResults();	39 testRunner.dumpAsTextWithPixelResults();

40 }	40 }

41 }	41 }

42 window.addEventListener("load", doTest, false);	42 window.addEventListener("load", doTest, false);

43 </script>	43 </script>

44 </head>	44 </head>

45 <body>	45 <body>

46 <!-- the red indicator should be covered by the green overlap element -->	46 <!-- the red indicator should be covered by the green overlap element -->

47 <div id="transform">	47 <div id="transform">

48 <div id="indicator"></div>	48 <div id="indicator"></div>

49 </div>	49 </div>

50 <div id="overlap"></div>	50 <div id="overlap"></div>

51	51

52 <pre id="layertree"></pre>	52 <pre id="layertree"></pre>

53 </body>	53 </body>

54 </html>	54 </html>

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