third_party/WebKit/LayoutTests/fast/scrolling/fractional-scroll-offset-document.html - Issue 2005193005: Disable fractional scroll feature by default

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Issue 2005193005: Disable fractional scroll feature by default (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@layout-test-fix

Patch Set: Fix tests Created 4 years, 6 months ago

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1 <!DOCTYPE HTML>	1 <!DOCTYPE HTML>

2 <body style="width:30000px;height:30000px" onload="runTest()">	2 <body style="width:30000px;height:30000px" onload="runTest()">

3 </body>	3 </body>

4	4

5 <script src="../../resources/js-test.js"></script>	5 <script src="../../resources/js-test.js"></script>

6 <script>	6 <script>

7 description("Verifies that document scrolling supports fractional offset.");	7 description("Verifies that document scrolling supports fractional offset.");

8	8

9 var floatPrecision = 0.00001;	9 var floatPrecision = 0.00001;

10 var useIntegerScrollOffset = false;	10 var useIntegerScrollOffset = true;

11 function checkScrollOffset(offset_x, offset_y)	11 function checkScrollOffset(offset_x, offset_y)

12 {	12 {

13 if (useIntegerScrollOffset) {	13 if (useIntegerScrollOffset) {

14 offset_x = Math.floor(offset_x);	14 offset_x = Math.floor(offset_x);

15 offset_y = Math.floor(offset_y);	15 offset_y = Math.floor(offset_y);

16 }	16 }

17 shouldBeCloseTo('document.scrollingElement.scrollTop', offset_y, floatPrecis ion);	17 shouldBeCloseTo('document.scrollingElement.scrollTop', offset_y, floatPrecis ion);

18 shouldBeCloseTo('document.scrollingElement.scrollLeft', offset_x, floatPreci sion);	18 shouldBeCloseTo('document.scrollingElement.scrollLeft', offset_x, floatPreci sion);

19 }	19 }

20	20

21 function scroll()	21 function scroll()

22 {	22 {

23 window.scrollTo(0, 0);	23 window.scrollTo(0, 0);

24 eventSender.gestureScrollBegin(100.1, 300.2);	24 eventSender.gestureScrollBegin(100.1, 300.2);

25 checkScrollOffset(0, 0);	25 checkScrollOffset(0, 0);

26 eventSender.gestureScrollUpdate(-20.5, -10.2);	26 eventSender.gestureScrollUpdate(-20.5, -10.2);

27 checkScrollOffset(20.5, 10.2);	27 checkScrollOffset(20.5, 10.2);

28 eventSender.gestureScrollUpdate(10.9, -20.9);	28 eventSender.gestureScrollUpdate(10.9, -20.9);

29 checkScrollOffset(9.6, 31.1);	29 checkScrollOffset(9.6, 31.1);

30 eventSender.gestureScrollUpdate(100.4, 220.9);	30 eventSender.gestureScrollUpdate(100.4, 220.9);

31 checkScrollOffset(0.0, 0.0);	31 checkScrollOffset(0.0, 0.0);

32 eventSender.gestureScrollEnd(0, 0);	32 eventSender.gestureScrollEnd(0, 0);

33 }	33 }

34	34

35 function runTest()	35 function runTest()

36 {	36 {

37 if (window.eventSender) {	37 if (window.eventSender) {

38 debug("set PreferCompositingToLCDTextEnabled true");	38 if (window.internals.runtimeFlags.fractionalScrollOffsetsEnabled) {

39 window.internals.settings.setPreferCompositingToLCDTextEnabled(true);	39 debug("fractional scroll offset mode");

40 scroll();	40 window.internals.settings.setPreferCompositingToLCDTextEnabled(true);

41	41 useIntegerScrollOffset = true;

42 debug("set PreferCompositingToLCDTextEnabled false");	42 }

43 window.internals.settings.setPreferCompositingToLCDTextEnabled(false);

44 useIntegerScrollOffset = true;

45 scroll();	43 scroll();

46 }	44 }

47 }	45 }

48	46

49 </script>	47 </script>

50 </html>	48 </html>

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