Created attachment 291366 [details] [review]
command-bar: Make sure any old text is cleared when showing

Created attachment 291367 [details] [review]
command: Add CommandProvider::complete signal and gb_command_manager_complete

This adds the initial scaffolding to get commandline completion in
the command bar. It just lets you fill in possible completions given
some existing text.

Created attachment 291368 [details] [review]
command-gaction-provide: Implement action name completion

This completes on the available registered actions.
For now only names are completed on, no parameters.

Created attachment 291369 [details] [review]
command-bar: Implement tab completion

When you press tab we expand to the longest common prefix from, and
if no common prefix exists we show the available matches in a list
(multiple tabs scroll in the list).

Awesome! Thanks for doing this!

Attachment 291366 [details] pushed as 0f5f1c7 - command-bar: Make sure any old text is cleared when showing
Attachment 291367 [details] pushed as db6d5e6 - command: Add CommandProvider::complete signal and gb_command_manager_complete
Attachment 291368 [details] pushed as bb265fc - command-gaction-provide: Implement action name completion
Attachment 291369 [details] pushed as 4b79973 - command-bar: Implement tab completion