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highlighter: vim9 script implementation of s:CheckDefined

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Christian 2020-11-18 10:42:41 +01:00 committed by Christian Brabandt
parent d9947beb0f
commit 2441084898
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31
autoload/airline/highlighter.vim
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@ -402,6 +402,37 @@ else
endif
return true
enddef
def s:CheckDefined(colors: list<any>): list<any> # {{{2
# Checks, whether the definition of the colors is valid and is not empty or NONE
# e.g. if the colors would expand to this:
# hi airline_c ctermfg=NONE ctermbg=NONE
# that means to clear that highlighting group, therefore, fallback to Normal
# highlighting group for the cterm values
# This only works, if the Normal highlighting group is actually defined,
# so return early, if it has been cleared
if !exists("g:airline#highlighter#normal_fg_hi")
g:airline#highlighter#normal_fg_hi = hlID('Normal')->synIDtrans()->synIDattr('fg', 'cterm')
endif
if empty(g:airline#highlighter#normal_fg_hi) || str2nr(g:airline#highlighter#normal_fg_hi) < 0
return colors
endif
for val in colors
if !empty(val) && val !=# 'NONE'
return colors
endif
endfor
# this adds the bold attribute to the term argument of the :hi command,
# but at least this makes sure, the group will be defined
var fg = g:airline#highlighter#normal_fg_hi
var bg = hlID('Normal')->synIDtrans()->synIDattr('bg', 'cterm')
if str2nr(bg) < 0
# in case there is no background color defined for Normal
bg = colors[3]
endif
return colors[0:1] + [fg, bg] + [colors[4]]
enddef
def airline#highlighter#exec(group: string, clrs: list<any>): void # {{{2
# TODO: is clrs: list<any> correct? Should probably be list<number> instead
# convert all themes to use strings in cterm color definition