add coc autocomplete source for completing contact email addresses from khard

1 files changed, 28 insertions, 0 deletions

diff --git a/.config/nvim/autoload/coc/source/khard.vim b/.config/nvim/autoload/coc/source/khard.vim
new file mode 100644
index 0000000..63dd8bd
--- /dev/null
+++ b/.config/nvim/autoload/coc/source/khard.vim
@@ -0,0 +1,28 @@
+" global contacts list
+let s:contacts = []
+
+function! coc#source#khard#init() abort
+	" read contacts once on init
+	for line in systemlist('khard email --remove-first-line --parsable')
+		let [address, name, type] = split(line, "\t")
+		call add(s:contacts, printf('%s <%s>', name, address))
+	endfor
+
+	" plugin config
+	return {
+				\ 'priority': 9,
+				\ 'shortcut': 'khard',
+				\ 'filetypes': ['mail'],
+				\}
+endfunction
+
+function coc#source#khard#should_complete(option)
+	" only complete addresses on to, cc, bcc and reply-to header lines
+	return tolower(a:option['line']) =~ '^\(to\|cc\|bcc\|reply-to\):'
+endfunction
+
+function! coc#source#khard#complete(option, cb) abort
+	" init already loaded all the contacts, just forward them to CoC
+	call a:cb(s:contacts)
+endfunction
+