[R-SIG-Mac] Cocoa GUI feature request (with patch!)

[Byron Ellis]

The insertion point moves because its part of the selection handling 
routines for NSTextView. Short of a completely custom terminal 
implementation there's no really good way of suppressing it without 
breaking the selection behavior. I'm pretty sure we like all of the 
selection behavior. Hence my little patch, which does not swallow 
typing, rather it does exactly what you suggest--append the typing to 
the current line (and reset the insertion point while we're at it).

I'm not certain how it interacts with the history (up-arrow, 
down-arrow) or command completion (tab. BTW, thanks for including 
this---the command line R on any platform AFAIK has never sensibly 
implemented tab. It completes filenames, which is just weird). I 
suspect it just ignores those inputs if the insertion point is in the 
wrong location (this is reparable, I just didn't think of it until 
now).


On Oct 21, 2004, at 1:12 AM, jtnews1 at biomserv.univ-lyon1.fr wrote:

> Pressing CMD+1 does not change the fact that, when you click in the
> console window, the insertion point is moved to the line where the
> click occured. This makes it impossible to type new commands, unless
> you click on the last input line, which is not easy, or type a carriage
> return, which means that the command you just typed before this 
> carriage
> return is lost.
>
> Why is the insertion point moved when a click occurs in the console
> window ? I think it should stay at the prompt just after the last
> output, like when using the terminal. Any keystroke should be echoed
> on the last line, and not "eaten" by the console.
>
> Jean
>
> On Oct 21, 2004, at 9:00 AM, stefano iacus wrote:
>
>> I'll have a look, but you can just press CMD+1 to activate the keyb.
>>
>> stefano
>>
>> On Oct 21, 2004, at 9:00 AM, Byron Ellis wrote:
>>
>>> First off, many many thanks to Stefano and Simon for their hard
>>> work making OS X a first-class R citizen. Great work guys!
>>>
>>> Second, I'm a lazy sort of guy (you may have noticed...) and I tend
>>> to click at random on the R Console to activate it, which has the
>>> unfortunate effect of moving the insertion point, rendering the
>>> keyboard more-or-less useless. My solution, in the attached patch,
>>> makes a small change to the RController that inserts the text at
>>> the end of the console buffer and moves the insertion point to the
>>> end when text is entered within the committed text region.
>>>
>>>
>
>
> -- 
> Jean Thioulouse - Labo. BBE, UMR CNRS 5558, Equipe "Ecologie 
> Statistique"
> Universite Lyon 1,  Batiment G. Mendel, 69622 Villeurbanne Cedex,  
> France
> Tel: (33) 4 72 43 27 56                           Fax: (33) 4 72 43 27 
> 56
>                  http://pbil.univ-lyon1.fr/JTHome.html
>
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---
Byron Ellis (bellis at hsph.harvard.edu)
"Oook" -- The Librarian