process_buffer exits ctrl-x mode

[taylor-peterson]

The autocommand that calls gitgutter#process_buffer(bufnr(''), 1) when the CursorHoldI event is triggered exits the ctrl-x sub-mode. If updatetime is set to the recommended value, this makes it very difficult to use completion.

Repro-Steps:

1. enable vim-gitgutter
2. :set updatetime=1000 (to better see what's going on)
3. :set showmode
4. Enter insert mode -> status line displays that you are in insert mode
5. Hit ctrl-x ->status line displays that you are in ctrl-x mode
6. updatetime later, CursorHoldI is triggered, calling process_buffer and you are dropped out of ctrl-x mode back into insert mode

Desired Behavior:
You remain in ctrl-x mode after the process_buffer call.

[airblade]

I have never noticed this before. I don't know how to detect the i_CTRL-X submode so I have asked on vim_use.

[TKr]

Same issue

[airblade]

No reply on vim_use so I have asked on vim_dev.

[airblade]

This is a vim problem: I can reproduce it without vim-gitgutter.

1. Start vim with:

   vim -u NONE -N --cmd 'set updatetime=1000' --cmd 'set showmode' --cmd 'autocmd CursorHoldI * 1'

2. Type i to enter insert mode.

3. Type CTRL-x to enter the insertion completion submode.

4. Expected: vim stays in insertion completion submode. Actual: after 1 second the mode changes back to insert mode.

I'll leave this issue open for now and wait to see what happens on vim_dev.

[airblade]

This is fixed in Vim 7.4.1758.