vim: Add plugin fcitx.vim

Credit: https://github.com/lilydjwg/fcitx.vim

1 files changed, 44 insertions, 0 deletions

diff --git a/_vim/plugin/fcitx.vim b/_vim/plugin/fcitx.vim
new file mode 100644
index 0000000..c0253a1
--- /dev/null
+++ b/_vim/plugin/fcitx.vim
@@ -0,0 +1,44 @@
+"
+" Remember and restore Fcitx's state for each buffer separately when
+" leaving/entering insert mode, while always switch Fcitx off in normal
+" mode.
+"
+" Credit: https://github.com/lilydjwg/fcitx.vim
+"
+
+if &compatible || 
+        \ exists("g:fcitx_loaded") ||
+        \ (!exists('$DISPLAY') || exists('$SSH_TTY'))
+    finish
+endif
+
+if executable('fcitx5-remote')
+    let g:fcitx_remote = 'fcitx5-remote'
+elseif executable('fcitx-remote')
+    let g:fcitx_remote = 'fcitx-remote'
+else
+    finish
+endif
+
+function Fcitx2en()
+    if system(g:fcitx_remote) == 2  " Fcitx is active
+        let b:fcitx_toggle = 1
+        call system(g:fcitx_remote . ' -c')  " inactivate
+    endif
+endfunction
+
+function Fcitx2zh()
+    try
+        if b:fcitx_toggle == 1
+            call system(g:fcitx_remote . ' -o')  " activate
+            let b:fcitx_toggle = 0
+        endif
+    catch /fcitx_toggle/
+        let b:fcitx_toggle = 0
+    endtry
+endfunction
+
+autocmd InsertLeave * call Fcitx2en()
+autocmd InsertEnter * call Fcitx2zh()
+
+let g:fcitx_loaded = 1