main: detect some more modes

autoload/airline.vim

@@ -148,7 +148,9 @@ function! airline#check_mode(winnr)
 
   if get(w:, 'airline_active', 1)
     let l:m = mode(1)
-    if l:m[0] ==# "i"
+    if l:m ==# "i"
+      let l:mode = ['insert']
+    elseif l:m[0] ==# "i"
       let l:mode = ['insert']
     elseif l:m ==# "Rv"
       let l:mode =['replace']
@@ -160,10 +162,15 @@ function! airline#check_mode(winnr)
       let l:mode = ['terminal']
     elseif l:m[0] ==# "c"
       let l:mode = ['commandline']
+    elseif l:m ==# "no"   " does not work, most likely, Vim does not refresh the statusline in OP mode
+      let l:mode = ['normal']
+    elseif l:m[0:1] ==# 'ni'
+      let l:mode = ['normal']
+      let l:m = 'ni'
     else
       let l:mode = ['normal']
     endif
-    if l:m !=# 'Rv'
+    if index(['Rv', 'no', 'ni', 'ix', 'ic'], l:m) == -1
       let l:m = l:m[0]
     endif
     let w:airline_current_mode = get(g:airline_mode_map, l:m, l:m)

autoload/airline/init.vim

@@ -36,8 +36,12 @@ function! airline#init#bootstrap()
   call s:check_defined('g:airline_mode_map', {})
   call extend(g:airline_mode_map, {
         \ '__' : '------',
-        \ 'n'  : 'NORMAL',
         \ 'i'  : 'INSERT',
+        \ 'ic' : 'INSERT COMPL',
+        \ 'ix' : 'INSERT COMPL',
+        \ 'n'  : 'NORMAL',
+        \ 'ni' : '(INSERT)',
+        \ 'no' : 'OP PENDING',
         \ 'R'  : 'REPLACE',
         \ 'v'  : 'VISUAL',
         \ 'V'  : 'V-LINE',