Bug 142521

Summary:

Scrollbars in overflow regions are not vanishing after scrolling

Product:

WebKit

Reporter:

Brent Fulgham <bfulgham>

Component:

Layout and Rendering

Assignee:

Brent Fulgham <bfulgham>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

bdakin, bfulgham, webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

528+ (Nightly build)

Hardware:

Mac

OS:

All

Attachments:

Description	Flags
Patch	none
Patch	darin: review+

Description Brent Fulgham 2015-03-09 19:19:59 PDT

For some reasons, regardless of system preference settings, the scroll bars for overflow regions containing scroll snap points are not vanishing after completing a scroll snap animation.

Comment 1 Radar WebKit Bug Importer 2015-03-09 19:20:49 PDT

<rdar://problem/20100706>

Comment 2 Brent Fulgham 2015-05-13 09:40:36 PDT

Created attachment 253033 [details]
Patch

Comment 3 Brent Fulgham 2015-05-13 12:20:17 PDT

Created attachment 253044 [details]
Patch

Comment 4 Brent Fulgham 2015-05-13 12:28:14 PDT

Committed r184296: <http://trac.webkit.org/changeset/184296>

Comment 5 Brent Fulgham 2015-05-13 12:30:30 PDT

<rdar://problem/19797041>

Comment 6 Brent Fulgham 2015-05-13 12:32:27 PDT

This was happening because we were never ending the scroll gesture. See patch for details. I originally thought this was specific to scroll-snap regions, but it was also happening for certain thin horizontal overflow regions.

E.g., <http://stackoverflow.com/questions/1081381/iphone-hide-uitableview-search-bar-by-default>. Go to the top answer, scroll the code snippet horizontally. Prior to this patch, the scrollbar would not vanish.

Note: If you place your mouse inside the scrollbar track (such that the scrollbar thickens) you are in a mode that holds the scrollbar visible until you move the mouse out of the region.