fix: close completion window on ctrl+c in insert mode

[smjonas]

As a nvim-cmp user, I was used to close the completion window with ctrl+c (it's kind of muscle memory at this point).
So I wanted to add the ability to blink.cmp too. Before this PR, the completion would not be closed as C-c does not trigger the InsertLeave autocommand in Vim/Nvim.

Currently, it looks like this:

Notice that my cursor is on line 13, outside of the completion window after I pressed ctrl+c.

For reference, nvim-cmp does something similar here:

https://github.com/hrsh7th/nvim-cmp/blob/ae644feb7b67bf1ce4260c231d1d4300b19c6f30/plugin/cmp.lua#L43-L54

[Saghen]

Would using keymap.hide = '<C-c>' work for your case or am I misunderstanding?

[smjonas]

That's not quite the same as that overrides the default behavior of <C-c> in insert mode (which enters normal mode by default). Whether this is added to keymap.hide or not, I still think the completion window should not remain open if a user presses ctrl+c.

[Saghen]

Ah, that checks out. Minor change, directly call trigger.hide instead of triggering the autocmd

[Saghen]

Thanks!