third_party/WebKit/LayoutTests/fast/scrolling/scrolling-apis-subpixel.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 <style>	2 <style>

3 .spacer {	3 .spacer {

4 height: 1000px;	4 height: 1000px;

5 width: 1000px;	5 width: 1000px;

6 }	6 }

7 #scroller, body {	7 #scroller, body {

8 height: 100px;	8 height: 100px;

9 width: 100px;	9 width: 100px;

10 overflow: scroll;	10 overflow: scroll;

(...skipping 54 matching lines...) Expand 10 before \| Expand all \| Expand 10 after Loading...
65 debug('');	65 debug('');

66 }	66 }

67	67

68 function testPageZoom(zoom) {	68 function testPageZoom(zoom) {

69 debug('---- Testing page zoom = ' + zoom + ' ----');	69 debug('---- Testing page zoom = ' + zoom + ' ----');

70 eventSender.setPageZoomFactor(zoom);	70 eventSender.setPageZoomFactor(zoom);

71 testScroll(4, 4);	71 testScroll(4, 4);

72 testScroll(4.5, 4.5);	72 testScroll(4.5, 4.5);

73 }	73 }

74	74

75 debug("set PreferCompositingToLCDTextEnabled true");	75 // By default we don't yet get fractional scroll offsets with more

76 window.internals.settings.setPreferCompositingToLCDTextEnabled(true);	76 // granularity than the page zoom factor.

77 testScroll(4.2, 4.2);

78 testPageZoom(2);

79

80 // If there is no browser zoom, floating point scroll offsets are truncated.

81 // If there is browser zoom, we can still get fractional scroll offsets

82 // through JS.

83 debug("set PreferCompositingToLCDTextEnabled false");

84 window.internals.settings.setPreferCompositingToLCDTextEnabled(false);	77 window.internals.settings.setPreferCompositingToLCDTextEnabled(false);

85 testScroll(4.2, 4);	78 testScroll(4.2, 4);

86 testPageZoom(2);	79 testPageZoom(2);

	80

	81 if (window.internals.runtimeFlags.fractionalScrollOffsetsEnabled) {

	82 debug("Full fractional scroll offsets enabled");

	83 window.internals.settings.setPreferCompositingToLCDTextEnabled(true);

	84 testScroll(4.2, 4.2);

	85 testPageZoom(2);

	86 }

87 </script>	87 </script>

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