2021-05-09 00:06:25 +08:00
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" MIT License. Copyright (c) 2013-2021
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" vim: et ts=2 sts=2 sw=2 et
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scriptencoding utf-8
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function! airline#extensions#scrollbar#calculate() abort
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if winwidth(0) > 200 && get(w:, 'airline_active', 0)
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let overwrite = 0
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if &encoding ==? 'utf-8' && !get(g:, 'airline_symbols_ascii', 0)
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let [left, right, middle] = [ '|', '|', '█']
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let overwrite = 1
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else
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let [left, right, middle] = [ '[', ']', '-']
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endif
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let spc = get(g:, 'airline_symbols.space', ' ')
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let width = 20 " max width, plus one border and indicator
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let perc = (line('.') + 0.0) / (line('$') + 0.0)
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let before = float2nr(round(perc * width))
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if before > 0 && line('.') == 1
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let before = 0
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let left = (overwrite ? '' : left)
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endif
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let after = width - before
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if (after <= 1 && line('.') == line('$'))
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let after = 0
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let right = (overwrite ? '' : right)
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endif
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2021-05-09 00:50:24 +08:00
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return left . repeat(spc, before) . middle . repeat(spc, after) . right
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2021-05-09 00:06:25 +08:00
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else
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return ''
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endif
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endfunction
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function! airline#extensions#scrollbar#init(ext) abort
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call airline#parts#define_function('scrollbar', 'airline#extensions#scrollbar#calculate')
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endfunction
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