vim-airline/autoload/airline/extensions/example.vim

48 lines
1.8 KiB
VimL

" MIT License. Copyright (c) 2013 Bailey Ling.
" vim: ts=2 sts=2 sw=2 fdm=indent
" Extension specific variables can be defined the usual fashion.
if !exists('g:airline#extensions#example#number_of_cats')
let g:airline#extensions#example#number_of_cats = 42
endif
" First you should follow the convention and define an 'init' function.
" It takes a single argument, which is the 'ext'ension manager of sorts,
" which you can invoke certain functions. The most important one is
" 'add_statusline_funcref', which as the name implies, adds a funcref to
" the collection such that it will be invoked prior to changes being made
" to the statusline. Finally, invoke this init function in the
" 'extensions.vim' file after a check to a non-autoloaded variable,
" command, or function.
function! airline#extensions#example#init(ext)
call a:ext.add_statusline_funcref(function('airline#extensions#example#apply'))
" Alternatively, you can also modify the default global section by
" appending or prepending to it. But read on to see why using the funcref
" method is preferred.
let g:airline_section_y .= '%{airline#extensions#example#nyancat()}'
endfunction
function! airline#extensions#example#apply()
" Here we are checking for the filetype, allowing for the extension to
" be loaded only in certain cases.
if &filetype == "nyancat"
" Then we define a window-local variable, which overrides the default
" g: variable.
let w:airline_section_gutter =
\ g:airline_section_gutter
\ .' %{airline#extensions#example#get_cats()}'
endif
endfunction
" Finally, this function will be invoked from the statusline.
function! airline#extensions#example#get_cats()
let cats = ''
for i in range(1, g:airline#extensions#example#number_of_cats)
let cats .= ' (,,,)=(^.^)=(,,,) '
endfor
return cats
endfunction