Change latex provider to luatex, closes #476

autoload/vimtex/view/common.vim

@@ -0,0 +1,211 @@
+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#common#apply_common_template(viewer) abort " {{{1
+  return extend(a:viewer, deepcopy(s:common_template))
+endfunction
+
+" }}}1
+function! vimtex#view#common#apply_xwin_template(class, viewer) abort " {{{1
+  let a:viewer.class = a:class
+  let a:viewer.xwin_id = 0
+  call extend(a:viewer, deepcopy(s:xwin_template))
+  return a:viewer
+endfunction
+
+" }}}1
+function! vimtex#view#common#not_readable(output) abort " {{{1
+  if !filereadable(a:output)
+    call vimtex#log#warning('Viewer cannot read PDF file!', a:output)
+    return 1
+  else
+    return 0
+  endif
+endfunction
+
+" }}}1
+
+let s:common_template = {}
+
+function! s:common_template.out() dict abort " {{{1
+  return g:vimtex_view_use_temp_files
+        \ ? b:vimtex.root . '/' . b:vimtex.name . '_vimtex.pdf'
+        \ : b:vimtex.out(1)
+endfunction
+
+" }}}1
+function! s:common_template.synctex() dict abort " {{{1
+  return fnamemodify(self.out(), ':r') . '.synctex.gz'
+endfunction
+
+" }}}1
+function! s:common_template.copy_files() dict abort " {{{1
+  if !g:vimtex_view_use_temp_files | return | endif
+
+  "
+  " Copy pdf file
+  "
+  let l:out = self.out()
+  if getftime(b:vimtex.out()) > getftime(l:out)
+    call writefile(readfile(b:vimtex.out(), 'b'), l:out, 'b')
+  endif
+
+  "
+  " Copy synctex file
+  "
+  let l:old = b:vimtex.ext('synctex.gz')
+  let l:new = self.synctex()
+  if getftime(l:old) > getftime(l:new)
+    call rename(l:old, l:new)
+  endif
+endfunction
+
+" }}}1
+function! s:common_template.pprint_items() abort dict " {{{1
+  let l:list = []
+
+  if has_key(self, 'xwin_id')
+    call add(l:list, ['xwin id', self.xwin_id])
+  endif
+
+  if has_key(self, 'process')
+    call add(l:list, ['process', self.process])
+  endif
+
+  for l:key in filter(keys(self), 'v:val =~# ''^cmd_''')
+    call add(l:list, [l:key, self[l:key]])
+  endfor
+
+  return l:list
+endfunction
+
+" }}}1
+
+let s:xwin_template = {}
+
+function! s:xwin_template.view(file) dict abort " {{{1
+  if empty(a:file)
+    let outfile = self.out()
+  else
+    let outfile = a:file
+  endif
+  if vimtex#view#common#not_readable(outfile)
+    return
+  endif
+
+  if self.xwin_exists()
+    call self.forward_search(outfile)
+  else
+    if g:vimtex_view_use_temp_files
+      call self.copy_files()
+    endif
+    call self.start(outfile)
+  endif
+
+  if has_key(self, 'hook_view')
+    call self.hook_view()
+  endif
+endfunction
+
+" }}}1
+function! s:xwin_template.xwin_get_id() dict abort " {{{1
+  if !executable('xdotool') | return 0 | endif
+  if self.xwin_id > 0 | return self.xwin_id | endif
+
+  " Allow some time for the viewer to start properly
+  sleep 500m
+
+  "
+  " Get the window ID
+  "
+  let cmd = 'xdotool search --class ' . self.class
+  let xwin_ids = split(system(cmd), '\n')
+  if len(xwin_ids) == 0
+    call vimtex#log#warning('Viewer cannot find ' . self.class . ' window ID!')
+    let self.xwin_id = 0
+  else
+    let self.xwin_id = xwin_ids[-1]
+  endif
+
+  return self.xwin_id
+endfunction
+
+" }}}1
+function! s:xwin_template.xwin_exists() dict abort " {{{1
+  if !executable('xdotool') | return 0 | endif
+
+  "
+  " If xwin_id is already set, check if it still exists
+  "
+  if self.xwin_id > 0
+    let cmd = 'xdotool search --class ' . self.class
+    if index(split(system(cmd), '\n'), self.xwin_id) < 0
+      let self.xwin_id = 0
+    endif
+  endif
+
+  "
+  " If xwin_id is unset, check if matching viewer windows exist
+  "
+  if self.xwin_id == 0
+    if has_key(self, 'get_pid')
+      let cmd = 'xdotool search'
+            \ . ' --all --pid ' . self.get_pid()
+            \ . ' --name ' . fnamemodify(self.out(), ':t')
+      let self.xwin_id = get(split(system(cmd), '\n'), 0)
+    else
+      let cmd = 'xdotool search --name ' . fnamemodify(self.out(), ':t')
+      let ids = split(system(cmd), '\n')
+      let ids_already_used = filter(map(deepcopy(vimtex#state#list_all()),
+            \ "get(get(v:val, 'viewer', {}), 'xwin_id')"), 'v:val > 0')
+      for id in ids
+        if index(ids_already_used, id) < 0
+          let self.xwin_id = id
+          break
+        endif
+      endfor
+    endif
+  endif
+
+  return self.xwin_id > 0
+endfunction
+
+" }}}1
+function! s:xwin_template.xwin_send_keys(keys) dict abort " {{{1
+  if a:keys ==# '' || !executable('xdotool') || self.xwin_id <= 0
+    return
+  endif
+
+  let cmd  = 'xdotool key --window ' . self.xwin_id
+  let cmd .= ' ' . a:keys
+  silent call system(cmd)
+endfunction
+
+" }}}1
+function! s:xwin_template.move(arg) abort " {{{1
+  if !executable('xdotool') || self.xwin_id <= 0
+    return
+  endif
+
+  let l:cmd = 'xdotool windowmove ' . self.xwin_get_id() . ' ' . a:arg
+  silent call system(l:cmd)
+endfunction
+
+" }}}1
+function! s:xwin_template.resize(arg) abort " {{{1
+  if !executable('xdotool') || self.xwin_id <= 0
+    return
+  endif
+
+  let l:cmd = 'xdotool windowsize ' . self.xwin_get_id()  . ' ' . a:arg
+  silent call system(l:cmd)
+endfunction
+
+" }}}1
+
+endif