Bug 12639

Summary:

renderlayers scroll by less than a page upon PageUp/PageDown

Product:

WebKit

Reporter:

Alice Liu <alice.barraclough>

Component:

New Bugs

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED INVALID

Severity:

Normal

Keywords:

InRadar

Priority:

Version:

420+

Hardware:

Mac

OS:

OS X 10.4

Attachments:

Description	Flags
screenshot	none
testcase	none

Alice Liu

Reported 2007-02-06 14:47:54 PST

* SUMMARY I noticed that pressing pageup/down in an overflow div doesn't really scroll by a whole page. It seems to scroll by ~2 lines less than a whole page. This is different from FF behavior which scrolls by an entire page. * STEPS TO REPRODUCE 1. open attached test case 2. focus the overflow div and press pagedown * RESULTS: screenshot shows Safari on Left, Firefox on Right, with initial state on top and results on bottom

Attachments
screenshot (67.26 KB, image/png) 2007-02-06 14:49 PST, Alice Liu	no flags	Details
testcase (402 bytes, text/html) 2007-02-06 14:50 PST, Alice Liu	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Alice Liu

Comment 1 2007-02-06 14:49:15 PST

Created attachment 12983 [details] screenshot

Alice Liu

Comment 2 2007-02-06 14:50:27 PST

Created attachment 12984 [details] testcase

Dave Hyatt

Comment 3 2007-02-06 16:24:58 PST

I do not consider this a bug. This behavior is deliberate. If you page up/down main documents in Firefox, WinIE and Safari, you'll see that they all keep a few lines worth of text. This is done on purpose so that the user doesn't lose track of what they are reading while paging. We keep a little bit of the previous page so that they have some context regarding where they are. It is inconsistent for Firefox to do something different in overflow areas. WebKit's behavior is consistent with the main document case.

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