Comments (8)
Hmm, I tried changing my default monospace font to courier new but shellinabox
used
the same font still, which is NOT courier new, so, I don't really understand
how it
is picking it's font, or WHAT font is the one having the problem. All I know
for
sure is that the problem occurs under my Windows XP Firefox 3.07, but not
under my
Linux Ubuntu Firefox 3.07 (which definitely uses a _different_ font...)
Original comment by [email protected]
on 18 Mar 2009 at 6:34
from shellinabox.
Hmm, I disabled "allow applications to pick their own fonts"; now shellinabox
uses
the font I tell it to, but, it puts the cursor in the wrong place always.
Maybe it
is related to screen resolution / dpi ? I'm running Windows XP with a 104dpi
setting
in the "display => settings => advanced => DPI setting". That effects how many
pixels the fonts take up...
Original comment by [email protected]
on 18 Mar 2009 at 6:40
from shellinabox.
This almost certainly sounds like a defect in the font that your browser picks.
I
have seen fonts that are only "almost" monospaced. That would certainly be a
problem
for ShellInABox. This can also happen, if the browser doesn't find all the
glyphs in
a particular font and substitutes them from other fonts. Not sure if that's
happening
in your case.
In either case, you can experiment with editing styles.css. Maybe, one of the
fonts
that ShellInABox suggests is actually bad? You can use the --static-file=
command
line argument to override styles.css
Original comment by [email protected]
on 18 Mar 2009 at 7:22
from shellinabox.
Minor further information, now that I have IE6 working on that machine, this
problem
only occurs on Firefox.
Original comment by [email protected]
on 19 Mar 2009 at 11:28
from shellinabox.
Ha- spoke too soon. IE gets the _horizontal_ correct, but the _vertical_ is
off!
Really funny looking in both cases. If I use Firefox, and edit a file in vi,
and get
down to the lower right of the screen, Firefox has the cursor a half inch left
of the
"real" cursor, IE has the cursor a couple of lines above the real cursor!
I wonder if there is a way to do the cursor with manipulation of text, maybe
swapping
the character with "|" back and forth, or flipping the "reverse" attribute back
and
forth on the character?
Nota Bene: This issue occurs on IE on a clean clean vmware install of windows
2000
and IE6, so it isn't due to some weird non-standard font setup.
So far, the problem NEVER happens with a Linux browser.
Original comment by [email protected]
on 19 Mar 2009 at 11:38
from shellinabox.
I made a bunch of changes that should avoid the problem in most cases.
It is not clear, whether it can be fixed in all cases, as we want to be able to
position the cursor to parts of the screen that don't have text. This is
necessary so
that copy&paste works as expected.
In the cases where the cursor is not adjacent to any text, we use the old
algorithm
and might still get the position wrong.
But in all other cases, we position the cursor relative to the text.
I also tweaked some style sheet settings that might have caused trouble with
some
browsers.
Let me know, if things look better for you, now. Please also do test cursor
positioning after a long sequence of space characters, as that could still be
broken.
Original comment by [email protected]
on 19 Mar 2009 at 10:22
from shellinabox.
*MUCH* better!
The long sequence of space characters does still have an issue, but I can't see
where
I would care unless I was trying to enter some weird ascii-art. And, as soon
as I
type a text character, it jumps to the right place. The remaining weirdness is
way a
low priority now.
The stylesheet is better, too, it picks a font that looks more like what I would
expect, say, xterm to pick. Might be nice if the right click menu had some font
options, actually, like ctrl-right on xterm.
The big issue for me was when I was typing text and progressively the cursor
went
weird, now that doesn't seem to happen at all vertically or horizontally.
Since the cursor is able to locate correctly when text is entered, is it
something
where a millisecond introduction and removal of a '.' or even an would locate
it? Never mind, I shouldn't make guesses when I haven't bothered to read the
code...
I guess I'm going to have to get comfortable with Ajax at some point, I'm a Java
developer and comfortable with C, but I mostly avoid ECMAScript, I've even
loaned out
my Javascript and Ajax books to another developer trying to do RDD (Resume
Driven
Development). But this kind of thing is cool, if you can do this, all kinds of
ideas
spring to mind...
Thanks!
Original comment by [email protected]
on 21 Mar 2009 at 4:21
from shellinabox.
The latest SVN version (revision 85) has a modified algorithm for cursor
positioning that should address horizontal positioning at the end of a sequence
of
spaces. As I don't actually see the problem myself, I cannot verify the fix.
But
since you seemed overall happy with how the code was already working, I am
closing
the bug for now. Feel free to re-open if you think the issue is not addresses
properly.
Original comment by [email protected]
on 21 Mar 2009 at 4:50
- Changed state: Fixed
from shellinabox.
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