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Bug 308826 - "Best fit" view: PgUp/PgDown should scroll exactly one page
"Best fit" view: PgUp/PgDown should scroll exactly one page
Status: RESOLVED WONTFIX
Product: evince
Classification: Core
Component: general
0.3.x
Other Linux
: Normal normal
: ---
Assigned To: Evince Maintainers
Evince Maintainers
Depends on:
Blocks:
 
 
Reported: 2005-06-23 19:42 UTC by Colin Marquardt
Modified: 2005-12-03 15:42 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description Colin Marquardt 2005-06-23 19:42:45 UTC
Summary says it all. In my 0.3.1 evince from Ubuntu Breezy, PgDown at the
beginning of a document scrolls maybe only 80% of the necessary "way" to fit the
second page exactly.
Comment 1 Nickolay V. Shmyrev 2005-06-23 19:51:52 UTC
Hi Colin

We have following system:

Space, PageUp, PageDown scrolls 75 percent, that is useful for reading. The bugs
described this behaviour are closed, but you can search for them in bugzilla.
That is because reader often needs to see previous page to not loose context.
That is undependant on mode, is it best fit or fit width

Ctrl+PageUp/Ctrl+PageDown switch to next page. They are bindings for
next/previous page. 

I hope that would be enough keys to move document. 
Comment 2 Colin Marquardt 2005-06-23 22:01:14 UTC
Hi Nickolay,

thanks for replying so quickly.

While I agree that consistency is important, I think taking "PgDown" literally
when "Best fit" is selected just feels natural. I *am* looking at a single page,
and I say "give me the next page", and then I expect it to show me the next page
in the same way that I was seeing the page before.

This might be a special case for "Best fit" only, I agree. FWIW, Acrobat Reader
5 and 7 do it like I suggest (acroread5 is a little buggy with PgUp, PgDown
works correctly).

For the rest, I agree that showing part of the previous view is nice.

I could bring it up on the usability list if you wanted to hear different opinions.

Cheers,
  Colin
Comment 3 Nickolay V. Shmyrev 2005-06-23 22:10:17 UTC
Bryan, what do you think, is this feature needed?
Comment 4 Colin Marquardt 2005-06-23 22:54:53 UTC
A friend added a different suggestion: how about making PgUp/PgDown scroll
exactly 1 page to keep the literal meaning of the keys, but keep Scape and
Backspace for scrolling with context?

Personally, I am even convinced that one could lose the "Continous" checkbox
altogether with a bit more adaptiveness (like "cursor keys always scroll in
small increments, even with non-continous mode and best fit selected"), and not
losing much in terms of usability.
Comment 5 Bryan W Clark 2005-07-08 17:52:51 UTC
Hi I don't like this change.  The space bar navigation is the there because we
have old unix farts who need to use that key to page down. ;-)  The page down
key isn't meant to be the literal meaning, it's just meant to give you a way to
get the next view of a page.  If you're using page down/up for navigation this
can probably be a little cumbersome, but our main navigation mode is supposed to
be search/page number entry so it's ok for that to be cumbersome. 

Interesting idea about the continous checkbox, perhaps you could file a separate
bug for that.
Comment 6 Nickolay V. Shmyrev 2005-12-03 15:42:31 UTC
*** Bug 323107 has been marked as a duplicate of this bug. ***