From 1c7efda5be438f9e864d1401a3feb3c320a652b3 Mon Sep 17 00:00:00 2001
From: Guangxiong Lin <hi@gxlin.org>
Date: Sat, 9 Apr 2022 00:10:47 +0800
Subject: Integrate mucomplete with ultisnips (vim)

---
 .vim/after/plugin/mucomplete.vim | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to '.vim/after/plugin')

diff --git a/.vim/after/plugin/mucomplete.vim b/.vim/after/plugin/mucomplete.vim
index 98146aa..788ddf6 100644
--- a/.vim/after/plugin/mucomplete.vim
+++ b/.vim/after/plugin/mucomplete.vim
@@ -1,7 +1,7 @@
 let g:mucomplete#enable_auto_at_startup = 1
 let g:mucomplete#minimum_prefix_length = 1
 let g:mucomplete#empty_text_auto = 1
-
+let g:mucomplete#no_mappings = 1
 
 let g:mucomplete#can_complete = {}
 let s:default_cond = { t -> t =~# '\%(\.\)$' }
@@ -9,5 +9,29 @@ let g:mucomplete#can_complete.default = { 'omni': s:default_cond }
 let g:mucomplete#chains = {}
 let g:mucomplete#chains.default = [ 'ulti', 'user', 'omni', 'keyn', 'path' ]
 
+imap <s-tab> <plug>(MUcompleteBwd)
+
+" Integrate with UltiSnips
+
+inoremap <silent> <expr> <plug>MyCR
+    \ mucomplete#ultisnips#expand_snippet("\<cr>")
+imap <cr> <plug>MyCR
+
+let g:ulti_expand_or_jump_res = 0
+
+fun! TryUltiSnips()
+  if !pumvisible() " With the pop-up menu open, let Tab move down
+    call UltiSnips#ExpandSnippetOrJump()
+  endif
+  return ''
+endf
+
+fun! TryMUcomplete()
+  return g:ulti_expand_or_jump_res ? "" : "\<plug>(MUcompleteFwd)"
+endf
+
+inoremap <plug>(TryUlti) <c-r>=TryUltiSnips()<cr>
+imap <expr> <silent> <plug>(TryMU) TryMUcomplete()
+imap <expr> <silent> <tab> "\<plug>(TryUlti)\<plug>(TryMU)"
 
 packadd vim-mucomplete
-- 
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