Issue 1082 in dactyl: Pentadactyl overrides native scrolling behaviour on PgUp/PgDn and Space/Shift-Space

[dac...@googlecode.com]

Status: New
Owner: ----
Labels: Type-Defect Priority-Medium Project-Pentadactyl

New issue 1082 by Endre.B...@gmail.com: Pentadactyl overrides native
scrolling behaviour on PgUp/PgDn and Space/Shift-Space
http://code.google.com/p/dactyl/issues/detail?id=1082

What steps will reproduce the problem?
1. Go to a website that features a fixed header, e.g.
http://billhillsblog.blogspot.com
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=319
2. Compare scrolling behaviour with Pentadactyl enabled/disabled.

What is the expected output? What do you see instead?
Newer Firefox versions have some elaborate code to make sure that vertical
scrolling is only done over the scrollable area excluding any fixed
elements at the top. See this Bugzilla issue:
https://bugzilla.mozilla.org/show_bug.cgi?id=780345 . This doesn't work
perfectly (sometimes a line is still cut off, particularly when a page is
magnified), but it's a lot better than nothing.

Pentadactyl seems to override this native behaviour, with the result that
PgUp/PgDn and Space/S-Space scroll over the entire viewport area (like
Firefox did before the above mentioned Bugzilla issue was fixed). This
makes scrolling on pages that have fixed headers very cumbersome (you
always have to scroll up a few lines after scrolling down a page).

Is it really necessary to override the native scrolling behaviour?

What is the output of :yank :version, or the exact Pentadactyl version and
Firefox build identifier (see the about: page)?
Pentadactyl hg6972 (created 2013/11/01 00:00:04) running on:
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0

Can you reproduce this problem with all custom configuration and plugins
disabled (i.e., running firefox -pentadactyl '+u NONE')?
Yes.

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[dac...@googlecode.com]

Comment #1 on issue 1082 by dougk...@gmail.com: Pentadactyl overrides

native scrolling behaviour on PgUp/PgDn and Space/Shift-Space

https://code.google.com/p/dactyl/issues/detail?id=1082

Issue 1219 has been merged into this issue.