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* Basic visibility cycling bug in 8.3.6
@ 2016-10-15 15:22 Marcus Zibrowius
  2016-10-15 20:25 ` Nicolas Goaziou
  0 siblings, 1 reply; 3+ messages in thread
From: Marcus Zibrowius @ 2016-10-15 15:22 UTC (permalink / raw)
  To: emacs-orgmode

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I am running org-mode 8.3.6 (8.3.6-6-g194e51-elpa
@ .../.emacs.d/elpa/org-20161003/) in GNU Emacs 24.3.1
(x86_64-pc-linux-gnu, GTK+ Version 3.10.7).

In this version, visibility cycling does not work as expected.  Consider
the following three-line example file:

* a
** b
** c

Consider the following sequence of commands:
1.  Place cursor on the letter b.  
2.  In the menu, choose Org > Refresh/Reload > Refresh setup current
buffer.
     (I do not know how to access this command directly).  
3.  Press TAB on your keyboard.  

If I do this in org-mode 8.3.6, my buffer looks as follows:

* a
** b
...

In this minimalistic example, pressing TAB once more will bring back the
line with the c, but in more complex examples, some parts of the buffer
seem to "get lost".  Moreover, I often find my files garbled like this
when I open them from the agenda. 

If I apply the above sequence of commands using my built-in org-mode
7.9.3, everything is fine.



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^ permalink raw reply	[flat|nested] 3+ messages in thread

• * Re: Basic visibility cycling bug in 8.3.6
    2016-10-15 15:22 Basic visibility cycling bug in 8.3.6 Marcus Zibrowius
  @ 2016-10-15 20:25 ` Nicolas Goaziou
         [not found]   ` <1476597091.2755.18.camel@XPS12>
    0 siblings, 1 reply; 3+ messages in thread
  From: Nicolas Goaziou @ 2016-10-15 20:25 UTC (permalink / raw)
    To: Marcus Zibrowius; +Cc: emacs-orgmode
  
  Hello,
  
  Marcus Zibrowius <marcus.zibrowius@hhu.de> writes:
  
  > In this version, visibility cycling does not work as expected.  Consider
  > the following three-line example file:
  >
  > * a
  > ** b
  > ** c
  >
  > Consider the following sequence of commands:
  > 1.  Place cursor on the letter b.  
  > 2.  In the menu, choose Org > Refresh/Reload > Refresh setup current
  > buffer.
  
  Note that you are leaving, on purpose, point in an invisible part of the
  document.
  
  >      (I do not know how to access this command directly).  
  > 3.  Press TAB on your keyboard.  
  >
  > If I do this in org-mode 8.3.6, my buffer looks as follows:
  >
  > * a
  > ** b
  > ...
  >
  > In this minimalistic example, pressing TAB once more will bring back the
  > line with the c, but in more complex examples, some parts of the buffer
  > seem to "get lost".  Moreover, I often find my files garbled like this
  > when I open them from the agenda.
  
  You can reveal text around point with C-c C-r (or even C-u C-c C-r). See
  `org-reveal' for details.
  
  By the way, Org 9.0 (yet to be released) contains a variable to control
  this: `org-show-context-detail'. You may want to update Org.
  
  > If I apply the above sequence of commands using my built-in org-mode
  > 7.9.3, everything is fine.
  
  I can reproduce the same with Org 7.9.3.
  
  Regards,
  
  -- 
  Nicolas Goaziou
  
  ^ permalink raw reply	[flat|nested] 3+ messages in thread

• • [parent not found: <1476597091.2755.18.camel@XPS12>]

  • • * Re: Basic visibility cycling bug in 8.3.6
             [not found]   ` <1476597091.2755.18.camel@XPS12>
      @ 2016-10-17  6:42     ` Nicolas Goaziou
        0 siblings, 0 replies; 3+ messages in thread
      From: Nicolas Goaziou @ 2016-10-17  6:42 UTC (permalink / raw)
        To: Marcus Zibrowius; +Cc: Org Mode List
      
      Hello,
      
      Marcus Zibrowius <marcus.zibrowius@hhu.de> writes:
      
      Cc'ing to the list for further discussion.
      
      > Excellent!   Thanks a lot for helping so quickly.  I still maintain that
      > the behaviour is different for me in org-mode 7.9.3, but I understand
      > now that it's a (new?) feature rather than a bug.
      
      I misread your version string. The behaviour you describe doesn't happen
      in Org 7.9.3f, but was introduced in
      2efbd0f138180fe14773d5485ad3c59332d6ddb3, i.e., between Org 7.9.3f and
      and Org 7.9.4. I can indeed observe the same with the latter.
      
      However this change never made it into the following release, i.e., Org
      8.0. You're observing a very short-lived feature.
      
      > Let me reiterate what I think is different , now that I understand
      > better what is happening:  in org-mode 8.3.6, if I start with 
      >
      > * a
      > ** b
      > ** c
      > ** d
      > ** e
      > ** f
      > ** g
      > ** h
      >
      > with point at e, then if I collapse with Shift+TAB and reexpand with
      > TAB, I get only:
      >
      > * a...
      > ** e
      > ...
      >
      > with point at the beginning of the line **e, and I can reexpand the
      > whole tree with C-c C-r.   So the line in which point was is somehow
      > remembered.  In contrast, Shift+TAB followed by TAB in org-mode 7.9.3f
      > (details below) brings back the whole tree directly, but forgets where
      > point was:  point ends up just right of a.
      
      I think it is important to preserve point when cycling view. It would be
      surprising if a function modifying visibility also moved it. Besides,
      this is useful when one wants to have a glimpse to the overview (S-TAB)
      and go back to the editing location (another S-TAB) immediatly after.
      
      I have no strong opinion on what should be displayed when pressing TAB
      in this case, tho. It seems the implentation of `org-cycle' sort of
      decided for us, i.e., it wasn't meant to handle this situation.
      
      Regards,
      
      -- 
      Nicolas Goaziou                                                0x80A93738
      
      ^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2016-10-17  6:42 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-10-15 15:22 Basic visibility cycling bug in 8.3.6 Marcus Zibrowius
2016-10-15 20:25 ` Nicolas Goaziou
     [not found]   ` <1476597091.2755.18.camel@XPS12>
2016-10-17  6:42     ` Nicolas Goaziou

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