third_party/WebKit/LayoutTests/compositing/will-change/containing-block-added.html - Issue 1413823005: Invalidate objects when containing block changed

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Side by Side Diff: third_party/WebKit/LayoutTests/compositing/will-change/containing-block-added.html

Issue 1413823005: Invalidate objects when containing block changed (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 5 years, 1 month ago

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

2 <html>	2 <html>

3 <head>	3 <head>

4 <style>	4 <style>

5 #container {	5 #container {

6 will-change: top;	6 will-change: top;

7 position: absolute;	7 position: absolute;

8 left: 200px;	8 left: 200px;

9 top: 100px;	9 top: 100px;

10 width: 100px;	10 width: 100px;

11 height: 100px;	11 height: 100px;

12 background-color: blue;	12 background-color: blue;

13 }	13 }

14	14

15 .fixed {	15 .fixed {

16 position: fixed;	16 position: fixed;

17 left: 50px;	17 left: 50px;

18 top: 50px;	18 top: 50px;

19 width: 75px;	19 width: 75px;

20 height: 75px;	20 height: 75px;

21 background-color: green	21 background-color: green

22 }	22 }

23 </style>	23 </style>

24 <script type="text/javascript">	24 <script src="../../fast/repaint/resources/text-based-repaint.js"></script>

25 if (window.testRunner) {	25 <script>

26 testRunner.waitUntilDone();	26 function repaintTest()

27 }

28

29 function doTest()

30 {	27 {

31 if (window.internals) {

32 window.internals.forceCompositingUpdate(document);

33 }

34 // Adding "will-change: -webkit-transform" to the container div should	28 // Adding "will-change: -webkit-transform" to the container div should

35 // make this div become the containing block for its fixed position	29 // make this div become the containing block for its fixed position

36 // descendant.	30 // descendant.

37 document.getElementById("container").style.willChange = "-webkit-transform ";	31 document.getElementById("container").style.transform = 'translateZ(0)'; // willChange = "transform";
	chrishtr 2015/10/30 18:28:18 It's not possible to set willChange directly? It's not possible to set willChange directly? Xianzhu 2015/10/30 19:15:28 Oops, I forgot to revert a temporary local change Show quoted text On 2015/10/30 18:28:18, chrishtr wrote: > It's not possible to set willChange directly? Oops, I forgot to revert a temporary local change for testing. Reverted.
38 if (window.testRunner) {

39 testRunner.notifyDone();

40 }

41 }	32 }

42	33 onload = runRepaintAndPixelTest;

43 window.addEventListener('load', doTest, false);

44 </script>	34 </script>

45 </head>	35 </head>

46	36

47 <body>	37 <body>

48 <div id="container">	38 <div id="container">

49 <div class="fixed"></div>	39 <div class="fixed"></div>

50 </div>	40 </div>

51 </body>	41 </body>

52	42

53 </html>	43 </html>

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