Change latex provider to luatex, closes #476

autoload/vimtex/view/zathura.vim

@@ -0,0 +1,155 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1
+
+" vimtex - LaTeX plugin for Vim
+"
+" Maintainer: Karl Yngve Lervåg
+" Email:      karl.yngve@gmail.com
+"
+
+function! vimtex#view#zathura#new() abort " {{{1
+  " Check if the viewer is executable
+  if !executable('zathura')
+    call vimtex#log#error('Zathura is not executable!')
+    return {}
+  endif
+
+  if executable('ldd')
+    let l:shared = split(system('ldd =zathura'))
+    if v:shell_error == 0
+          \ && empty(filter(l:shared, 'v:val =~# ''libsynctex'''))
+      call vimtex#log#warning('Zathura is not linked to libsynctex!')
+      let s:zathura.has_synctex = 0
+    endif
+  endif
+
+  " Check if the xdotool is available
+  if !executable('xdotool')
+    call vimtex#log#warning('Zathura requires xdotool for forward search!')
+  endif
+
+  "
+  " Use the xwin template
+  "
+  return vimtex#view#common#apply_xwin_template('Zathura',
+        \ vimtex#view#common#apply_common_template(deepcopy(s:zathura)))
+endfunction
+
+" }}}1
+
+let s:zathura = {
+      \ 'name' : 'Zathura',
+      \ 'has_synctex' : 1,
+      \}
+
+function! s:zathura.start(outfile) dict abort " {{{1
+  let l:cmd  = 'zathura'
+  if self.has_synctex
+    let l:cmd .= ' -x "' . g:vimtex_compiler_progname
+          \ . ' --servername ' . v:servername
+          \ . ' --remote-expr '
+          \ .     '\"vimtex#view#reverse_goto(%{line}, ''%{input}'')\""'
+    if g:vimtex_view_forward_search_on_start
+      let l:cmd .= ' --synctex-forward '
+            \ .  line('.')
+            \ .  ':' . col('.')
+            \ .  ':' . vimtex#util#shellescape(expand('%:p'))
+    endif
+  endif
+  let l:cmd .= ' ' . g:vimtex_view_zathura_options
+  let l:cmd .= ' ' . vimtex#util#shellescape(a:outfile)
+  let self.process = vimtex#process#start(l:cmd)
+
+  call self.xwin_get_id()
+  let self.outfile = a:outfile
+endfunction
+
+" }}}1
+function! s:zathura.forward_search(outfile) dict abort " {{{1
+  if !self.has_synctex | return | endif
+  if !filereadable(self.synctex()) | return | endif
+
+  let l:cmd  = 'zathura --synctex-forward '
+  let l:cmd .= line('.')
+  let l:cmd .= ':' . col('.')
+  let l:cmd .= ':' . vimtex#util#shellescape(expand('%:p'))
+  let l:cmd .= ' ' . vimtex#util#shellescape(a:outfile)
+  call vimtex#process#run(l:cmd)
+  let self.cmd_forward_search = l:cmd
+  let self.outfile = a:outfile
+endfunction
+
+" }}}1
+function! s:zathura.compiler_callback(status) dict abort " {{{1
+  if !a:status && g:vimtex_view_use_temp_files < 2
+    return
+  endif
+
+  if g:vimtex_view_use_temp_files
+    call self.copy_files()
+  endif
+
+  if !filereadable(self.out()) | return | endif
+
+  if g:vimtex_view_automatic
+    "
+    " Search for existing window created by latexmk
+    "   It may be necessary to wait some time before it is opened and
+    "   recognized. Sometimes it is very quick, other times it may take
+    "   a second. This way, we don't block longer than necessary.
+    "
+    if !has_key(self, 'started_through_callback')
+      for l:dummy in range(30)
+        sleep 50m
+        if self.xwin_exists() | break | endif
+      endfor
+    endif
+
+    if !self.xwin_exists() && !has_key(self, 'started_through_callback')
+      call self.start(self.out())
+      let self.started_through_callback = 1
+    endif
+  endif
+
+  if has_key(self, 'hook_callback')
+    call self.hook_callback()
+  endif
+endfunction
+
+" }}}1
+function! s:zathura.latexmk_append_argument() dict abort " {{{1
+  if g:vimtex_view_use_temp_files
+    let cmd = ' -view=none'
+  else
+    let zathura = 'zathura ' . g:vimtex_view_zathura_options
+    if self.has_synctex
+      let zathura .= ' -x \"' . g:vimtex_compiler_progname
+          \ . ' --servername ' . v:servername
+          \ . ' --remote +\%{line} \%{input}\" \%S'
+    endif
+
+    let cmd  = vimtex#compiler#latexmk#wrap_option('new_viewer_always', '0')
+    let cmd .= vimtex#compiler#latexmk#wrap_option('pdf_previewer', zathura)
+  endif
+
+  return cmd
+endfunction
+
+" }}}1
+function! s:zathura.get_pid() dict abort " {{{1
+  " First try to match full output file name
+  let cmd = 'pgrep -nf "zathura.*'
+        \ . escape(get(self, 'outfile', self.out()), '~\%.') . '"'
+  let pid = str2nr(system(cmd)[:-2])
+
+  " Now try to match correct servername as fallback
+  if empty(pid)
+    let cmd = 'pgrep -nf "zathura.+--servername ' . v:servername . '"'
+    let pid = str2nr(system(cmd)[:-2])
+  endif
+
+  return pid
+endfunction
+
+" }}}1
+
+endif