Expose Viewport.gui_accept_event()

[timothyqiu]

Control.accept_event() calls Viewport._gui_accept_event(), this is handy for consuming the event inside a Control's script.

However, one would also want to accept_event() in a Control's gui_input signal. The signal is not necessarily handled by a script extending Control.

So the only way to consume the event in the signal handler is to get a Control node and call its accept_event() method.

I suggest exposing Viewport._gui_accept_event() to scripting. We've already exposed Viewport.gui_release_focus() for the same reason.

[theraot]

Looking at the source code, _gui_accept_event sets gui.key_event_accepted = true; and then calls set_input_as_handled (which is already exposed) if the Viewport is inside the scene tree. This makes me wonder if set_input_as_handled should do gui.key_event_accepted = true; and then _gui_accept_event could be removed.

[timothyqiu]

Yeah, I always wonder what's the difference between set_input_as_handled() and accept_event().