Use variables in the tabs tabline builder to track position

This commit is contained in:
mrmr1993 2018-03-15 17:41:08 +00:00
parent 349d01ba39
commit ada8cd7641

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@ -15,10 +15,10 @@ function! s:prototype.build() dict
let tab_nr_type = get(g:, 'airline#extensions#tabline#tab_nr_type', 0) let tab_nr_type = get(g:, 'airline#extensions#tabline#tab_nr_type', 0)
let num_tabs = tabpagenr('$') let num_tabs = tabpagenr('$')
let curtab = self._curtab let curtab = self._curtab
let left_tab = curtab - 1 let self._left_tab = curtab - 1
let right_tab = curtab + 1 let self._right_tab = curtab + 1
let left_position = self._tabs_position let self._left_position = self._tabs_position
let right_position = self._tabs_position + 1 let self._right_position = self._tabs_position + 1
let remaining_space = &columns - s:strchars(s:evaluate_tabline(self._build())) let remaining_space = &columns - s:strchars(s:evaluate_tabline(self._build()))
let left_sep_size = s:strchars(s:evaluate_tabline(self._context.left_sep)) let left_sep_size = s:strchars(s:evaluate_tabline(self._context.left_sep))
@ -35,54 +35,54 @@ function! s:prototype.build() dict
" There are always two left_seps (either side of the selected tab) and all " There are always two left_seps (either side of the selected tab) and all
" other seperators are left_alt_seps. " other seperators are left_alt_seps.
let remaining_space -= 2 * left_sep_size - left_alt_sep_size let remaining_space -= 2 * left_sep_size - left_alt_sep_size
call self.insert_section(self.get_group(curtab), tab_title, left_position) call self.insert_section(self.get_group(curtab), tab_title, self._left_position)
if get(g:, 'airline#extensions#tabline#current_first', 0) if get(g:, 'airline#extensions#tabline#current_first', 0)
" always have current tabpage first " always have current tabpage first
let left_position += 1 let self._left_position += 1
endif endif
" Add the tab to the right " Add the tab to the right
if right_tab <= num_tabs if self._right_tab <= num_tabs
let tab_title = self.get_title(tab_nr_type, right_tab) let tab_title = self.get_title(tab_nr_type, self._right_tab)
let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + left_alt_sep_size let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + left_alt_sep_size
call self.insert_section(self.get_group(right_tab), tab_title, right_position) call self.insert_section(self.get_group(self._right_tab), tab_title, self._right_position)
let right_position += 1 let self._right_position += 1
let right_tab += 1 let self._right_tab += 1
endif endif
while remaining_space > 0 while remaining_space > 0
if left_tab > 0 if self._left_tab > 0
let tab_title = self.get_title(tab_nr_type, left_tab) let tab_title = self.get_title(tab_nr_type, self._left_tab)
let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + left_alt_sep_size let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + left_alt_sep_size
if remaining_space >= 0 if remaining_space >= 0
call self.insert_section(self.get_group(left_tab), tab_title, left_position) call self.insert_section(self.get_group(self._left_tab), tab_title, self._left_position)
let right_position += 1 let self._right_position += 1
let left_tab -= 1 let self._left_tab -= 1
endif endif
elseif right_tab <= num_tabs elseif self._right_tab <= num_tabs
let tab_title = self.get_title(tab_nr_type, right_tab) let tab_title = self.get_title(tab_nr_type, self._right_tab)
let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + left_alt_sep_size let remaining_space -= s:strchars(s:evaluate_tabline(tab_title)) + left_alt_sep_size
if remaining_space >= 0 if remaining_space >= 0
call self.insert_section(self.get_group(right_tab), tab_title, right_position) call self.insert_section(self.get_group(self._right_tab), tab_title, self._right_position)
let right_position += 1 let self._right_position += 1
let right_tab += 1 let self._right_tab += 1
endif endif
else else
break break
endif endif
endwhile endwhile
if left_tab > 0 if self._left_tab > 0
if get(g:, 'airline#extensions#tabline#current_first', 0) if get(g:, 'airline#extensions#tabline#current_first', 0)
let left_position -= 1 let self._left_position -= 1
endif endif
call self.insert_raw('%#airline_tab#'.skipped_tabs_marker, left_position) call self.insert_raw('%#airline_tab#'.skipped_tabs_marker, self._left_position)
let right_position += 1 let self._right_position += 1
endif endif
if right_tab <= num_tabs if self._right_tab <= num_tabs
call self.insert_raw('%#airline_tab#'.skipped_tabs_marker, right_position) call self.insert_raw('%#airline_tab#'.skipped_tabs_marker, self._right_position)
endif endif
endif endif