On Wed, 27 Sep 2006 at 10:07am, Charles E Campbell Jr wrote:
> Bram Moolenaar wrote:
>
> >Charles Campbell wrote:
> >
> >
> >
> >>Just a suggestion -- I'd appreciate a WinClose event. BufWinLeave would
> >>almost do, but if two or more windows are open on the same buffer, then
> >>no event. WinLeave fires whenever one changes windows, which isn't
> >>what I want, either. Unless I'm misunderstanding the help for these two
> >>events.
> >>
> >>
> >
> >What would this event be used for?
> >
> >The WinResized event has also been suggested. It could be used to
> >update the Window layout. It will also be triggered when a window is
> >closed, since another window will get bigger then. Would it be
> >sufficient to only have a WinResized event? Would these events also be
> >triggered when closing the last window of a tab page?
> >
> >
> >
> As an example: I have debugging output in a left hand window (Decho.vim
> produces this sort of output);
> when I hit <f9> on a function name, a vertically split window shows up
> on the right and tags to the
> named function. However, if that window already exists, I just want to
> re-use it, not split and create another
> one. To do that correctly, I need that window, when it is actually
> closed, to perform some cleanup (ie. make a change
> in a script variable). I want to allow other vertical windows, so there
> isn't necessarily a fixed number of vertically
> split panes. Actually, the script also allows <s-f9> to create a left
> hand source window: [leftsource|debugging|rightsource].
>
> The leftsource and right source windows may well be open to the same
> source file. Consequently the various buffer
> closing events aren't adequate. BufWinLeave almost does the trick, but
> there's that "not when a buffer is still visible
> in another window" caveat associated with it. That's what I've been
> using, but it really isn't adequate.
>
> A WinResized might easily occur when that window wasn't closed, too.
>
> Regards,
> Chip Campbell
FYI, the last I needed this event, I wrote a function to do this. It is
part of genutils.vim as NotifyWinClose(). Here is the implementation
(written as a generalization), it is kind of heuristic (see
CheckWindowClose). I will be happy to see a WinClose event though.
let s:notifyWindow = {}
function! genutils#AddNotifyWindowClose(windowTitle, functionName)
let bufName = a:windowTitle
let s:notifyWindow[bufName] = a:functionName
"let g:notifyWindow = s:notifyWindow " Debug.
" Start listening to events.
aug NotifyWindowClose
au!
au WinEnter * :call genutils#CheckWindowClose()
au BufEnter * :call genutils#CheckWindowClose()
aug END
endfunction
function! genutils#RemoveNotifyWindowClose(windowTitle)
let bufName = a:windowTitle
if has_key(s:notifyWindow, bufName)
call remove(s:notifyWindow, bufName)
if len(s:notifyWindow) == 0
"unlet g:notifyWindow " Debug.
aug NotifyWindowClose
au!
aug END
endif
endif
endfunction
function! genutils#CheckWindowClose()
if !exists('s:notifyWindow')
return
endif
" Now iterate over all the registered window titles and see which one's are
" closed.
for nextWin in keys(s:notifyWindow)
if bufwinnr(s:FindBufferForName(nextWin)) == -1
let funcName = s:notifyWindow[nextWin]
" Remove this entry as these are going to be processed. The caller can
add
" them back if needed.
unlet s:notifyWindow[nextWin]
"call input("cmd: " . cmd)
call call(funcName, [nextWin])
endif
endfor
endfunction
Here is a test case that shows how to use it:
function! NotifyWindowCloseF(title)
call input(a:title . " closed")
endfunction
function! RunNotifyWindowCloseTest()
call input("Creating three windows, 'ABC', 'XYZ' and 'b':")
split ABC
split X Y Z
split b
redraw
call genutils#AddNotifyWindowClose("ABC", "NotifyWindowCloseF")
call genutils#AddNotifyWindowClose("X Y Z", "NotifyWindowCloseF")
call input("notifyWindow: " . string(s:notifyWindow))
au NotifyWindowClose WinEnter
call input("Added notifications for 'ABC' and 'XYZ'\n".
\ "Now closing the windows, you should see ONLY two notifications:")
quit
quit
quit
endfunction
--
Thanks,
Hari
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