From 272036b8fa7f35dc6e0de20788380b725dd85f20 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Michalke?= <rene@renemichalke.de>
Date: Tue, 28 Dec 2021 22:41:06 +0100
Subject: [PATCH] Implement support for the Command-line window.

---
 README.md                | 3 +++
 lua/cmp_cmdline/init.lua | 3 ++-
 plugin/cmp-cmdline.vim   | 6 ++++++
 3 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 plugin/cmp-cmdline.vim

diff --git a/README.md b/README.md
index f888e5d..08a5880 100644
--- a/README.md
+++ b/README.md
@@ -22,4 +22,7 @@ require'cmp'.setup.cmdline('/', {
 })
 ```
 
+Completions for Command-line window `q:`  
+Add `{ name = 'cmdline' }` to your nvim-cmp sources in the same way, as you would add any other source.
+
 For the buffer source to work, [cmp-buffer](https://github.com/hrsh7th/cmp-buffer) is needed.
diff --git a/lua/cmp_cmdline/init.lua b/lua/cmp_cmdline/init.lua
index a81cbfe..4e52716 100644
--- a/lua/cmp_cmdline/init.lua
+++ b/lua/cmp_cmdline/init.lua
@@ -51,7 +51,8 @@ source.get_trigger_characters = function()
 end
 
 source.is_available = function()
-  return vim.api.nvim_get_mode().mode == 'c'
+  return (vim.api.nvim_get_mode().mode == 'c'
+    or vim.api.nvim_get_var('cmp_cmdline_cmdwin_active') == true)
 end
 
 source.complete = function(self, params, callback)
diff --git a/plugin/cmp-cmdline.vim b/plugin/cmp-cmdline.vim
new file mode 100644
index 0000000..e64f6d9
--- /dev/null
+++ b/plugin/cmp-cmdline.vim
@@ -0,0 +1,6 @@
+let g:cmp_cmdline_cmdwin_active = v:false
+augroup cmp_cmdline
+	autocmd!
+	autocmd CmdWinEnter * let g:cmp_cmdline_cmdwin_active = v:true
+	autocmd CmdWinLeave * let g:cmp_cmdline_cmdwin_active = v:false
+augroup END