On 2015-05-26 09:04:39 +0000, Nicola said:
On 2015-05-26 04:59:00 +0000, Nikolay Pavlov said:
Default value from &l:statusline is &g:statusline (actually,
pseudo-value “no value set, fall back to &g:statusline”). If you set
&g:statusline to `%!BuildNewStatusLine()` and run
`RefreshStatusLines()` inside then this function will be run only when
new window appears because `RefreshStatusLines()` will set
&l:statusline which will be used then and which will only call
BuildStatusLine, but not BuildNewStatusLine.
Ok, I'm having some difficulty with this. Currently I have something
like this in my .vimrc:
func! WinNrFromID(window_id)
return filter(range(1, winnr('$')), 'getwinvar(v:val,
"custom_window_id") == ' . a:window_id)[0]
endf
func! BuildStatusLine(window_id)
let nr = WinNrFromID(window_id)
" Build the status line
endf
let g:window_id = 0 " Global unique id
func! SetupLocalStatusLine()
let g:window_id +=1
let w:custom_window_id = g:window_id
exec 'setlocal statusline=%!BuildStatusLine(' . w:custom_window_id . ')'
endf
set statusline=%!SetupLocalStatusLine()
Problems:
1) How do I detect whether a window is the active one (I want different
status lines
for active and inactive windows)? I cannot use winnr() inside BuildStatusLine()
or in the context of %!.
On a second thought, that's not true: I can use winnr() to get the
current window.
So, the real problem is:
2) When I open several windows and then I close them with <c-w>o, I get
an out of bounds
error in WinNrFromID(). Why? Is the function being called for
closing/closed windows?
All works as expected (including <C-w><C-o>!) if I open windows with
:new, :vnew, etc...
But when I split a window, say with <C-w><C-s>, SetupLocalStatusLine()
is not called, which means that somehow the current &l:statusline is
re-used. The rest
is just a consequence of that. I have no idea how to fix this.
I have also noticed that when I split a window, BuildStatusLine() is
called three times, while
I'd expect it to be called twice (once per split window). Is that
expected behaviour?
Nicola
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