1 files changed, 115 insertions, 0 deletions
diff --git a/autoload/vimtex/view.vim b/autoload/vimtex/view.vim
new file mode 100644
index 00000000..bebb7be9
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+++ b/autoload/vimtex/view.vim
@@ -0,0 +1,115 @@
+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#init_buffer() abort " {{{1
+  if !g:vimtex_view_enabled | return | endif
+
+  command! -buffer -nargs=? -complete=file VimtexView
+        \ call b:vimtex.viewer.view(<q-args>)
+  if has_key(b:vimtex.viewer, 'reverse_search')
+    command! -buffer -nargs=* VimtexRSearch
+          \ call b:vimtex.viewer.reverse_search()
+  endif
+
+  nnoremap <buffer> <plug>(vimtex-view)
+        \ :call b:vimtex.viewer.view('')<cr>
+  if has_key(b:vimtex.viewer, 'reverse_search')
+    nnoremap <buffer> <plug>(vimtex-reverse-search)
+          \ :call b:vimtex.viewer.reverse_search()<cr>
+  endif
+endfunction
+
+" }}}1
+function! vimtex#view#init_state(state) abort " {{{1
+  if !g:vimtex_view_enabled | return | endif
+  if has_key(a:state, 'viewer') | return | endif
+
+  try
+    let a:state.viewer = vimtex#view#{g:vimtex_view_method}#new()
+  catch /E117/
+    call vimtex#log#warning(
+          \ 'Invalid viewer: ' . g:vimtex_view_method,
+          \ 'Please see :h g:vimtex_view_method')
+    return
+  endtry
+
+  " Make the following code more concise
+  let l:v = a:state.viewer
+
+  "
+  " Add compiler callback to callback hooks (if it exists)
+  "
+  if exists('*l:v.compiler_callback')
+        \ && index(g:vimtex_compiler_callback_hooks,
+        \          'b:vimtex.viewer.compiler_callback') == -1
+    call add(g:vimtex_compiler_callback_hooks,
+          \ 'b:vimtex.viewer.compiler_callback')
+  endif
+
+  "
+  " Create view and/or callback hooks (if they exist)
+  "
+  for l:point in ['view', 'callback']
+    execute 'let l:hook = ''g:vimtex_view_'
+          \ . g:vimtex_view_method . '_hook_' . l:point . ''''
+    if exists(l:hook)
+      execute 'let hookfunc = ''*'' . ' . l:hook
+      if exists(hookfunc)
+        execute 'let l:v.hook_' . l:point . ' = function(' . l:hook . ')'
+      endif
+    endif
+  endfor
+endfunction
+
+" }}}1
+
+function! vimtex#view#reverse_goto(line, filename) abort " {{{1
+  if mode() ==# 'i' | stopinsert | endif
+
+  let l:file = resolve(a:filename)
+
+  " Open file if necessary
+  if !bufexists(l:file)
+    if filereadable(l:file)
+      execute 'silent edit' l:file
+    else
+      call vimtex#log#warning("Reverse goto failed for file:\n" . l:file)
+      return
+    endif
+  endif
+
+  " Go to correct buffer and line
+  let l:bufnr = bufnr(l:file)
+  let l:winnr = bufwinnr(l:file)
+  execute l:winnr >= 0
+        \ ? l:winnr . 'wincmd w'
+        \ : 'buffer ' . l:bufnr
+
+  execute 'normal!' a:line . 'G'
+  normal! zMzvzz
+
+  " Attempt to focus Vim
+  if executable('pstree') && executable('xdotool')
+    let l:pids = reverse(split(system('pstree -s -p ' . getpid()), '\D\+'))
+
+    let l:xwinids = []
+    call map(copy(l:pids), 'extend(l:xwinids, reverse(split('
+          \ . "system('xdotool search --onlyvisible --pid ' . v:val)"
+          \ . ')))')
+    call filter(l:xwinids, '!empty(v:val)')
+
+    if !empty(l:xwinids)
+      call system('xdotool windowactivate ' . l:xwinids[0] . ' &')
+      call feedkeys("\<c-l>", 'tn')
+    endif
+  endif
+endfunction
+
+" }}}1
+
+endif