From 04cbdb51a0e02619e0ca8bc717f1a599560befa5 Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Sun, 15 Jan 2023 20:48:59 +0100
Subject: Improve synctex; when clicking in the PDF focus the vim window

---
 vim/.latexmkrc                  |  5 +----
 vim/.vim/after/ftplugin/tex.vim | 13 +++++++++++--
 2 files changed, 12 insertions(+), 6 deletions(-)

(limited to 'vim')

diff --git a/vim/.latexmkrc b/vim/.latexmkrc
index 8ee0b76..c4ec9ee 100644
--- a/vim/.latexmkrc
+++ b/vim/.latexmkrc
@@ -13,10 +13,7 @@ $pdf_previewer .= 'zathura';
 # -x for synctex: connect to the rpc socket, switch to the file and jump to the line
 $pdf_previewer .= ' -x "nvim --headless --cmd';
 $pdf_previewer .= ' \'let skt=sockconnect(\\"pipe\\",\\"$SERVER\\",{\\"rpc\\":1})';
-$pdf_previewer .= ' | call rpcrequest(skt,\\"nvim_command\\",\\"tab drop %{input}\\")';
-$pdf_previewer .= ' | call rpcrequest(skt,\\"nvim_command\\",\\"%{line}\\")';
-# mysteriously, we need `cd .` to fix the file name in the tabline
-$pdf_previewer .= ' | call rpcrequest(skt,\\"nvim_command\\",\\"cd .\\")';
+$pdf_previewer .= ' | call rpcrequest(skt,\\"nvim_command\\",\\"call SyncPDFToTeX(\\\\\\"%{input}\\\\\\",\\\\\\"%{line}\\\\\\")\\")';
 $pdf_previewer .= ' | call chanclose(skt)';
 $pdf_previewer .= ' | quit\'"';
 # final argument for zathura is the PDF
diff --git a/vim/.vim/after/ftplugin/tex.vim b/vim/.vim/after/ftplugin/tex.vim
index de2ec0b..6de2aea 100644
--- a/vim/.vim/after/ftplugin/tex.vim
+++ b/vim/.vim/after/ftplugin/tex.vim
@@ -1,10 +1,19 @@
 setlocal spell spelllang=en_gb
 setlocal tabstop=2 shiftwidth=2
 
-function! Synctex()
+function! SyncTeXToPDF()
 	call system('zathura --synctex-forward ' .
 				\ line('.') . ':' . col('.') . ':' . shellescape(bufname('%')) . ' ' .
 				\ shellescape(g:synctex_zathura_pdf_filename))
 endfunction
 
-map <C-T> :call Synctex()<CR>
+function! g:SyncPDFToTeX(input, line)
+	" Focus the window vim is running in.
+	exe "silent !i3-msg '[id=\"" . environ()['WINDOWID'] . "\"] focus'"
+	" Open the file name and jump to the right line.
+	" Mysteriously, we need `cd .` to fix the file name in the tabline.
+	" Putting this in one `exe` seems to reduce flickering.
+	exe 'tab drop ' . a:input . ' | silent ' . a:line . ' | silent cd .'
+endfunction
+
+map <C-T> :call SyncTeXToPDF()<CR>
-- 
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