> On Wednesday, February 1, 2017 at 9:50:47 PM UTC+1, Bram Moolenaar wrote:
> > Thus all we need is to implement a function in evalfunc.c to show the
> > balloon. This function could also be invoked from a channel callback.
>
> This is how I have anticipated this feature as well. Somehow, I have
> misinterpreted your previous input.
And it should not be difficult, since the function already exists.
> > The tricky part is to draw a balloon in a terminal, and
> > undraw it properly. The popup menu comes closes, the code is in
> > popupmnu.c
>
> But isn't it that "+balloon_eval" feature was meant to be used only
> with GUI versions? 'gui_beval.c' and 'gui.c' indicate that.
Yes, that is how it was build.
> How would we go with mouse hover event handling in terminal? I am no
> expert in this but from the existing code I can see
> "XtAddEventHandler()" is being used for non-GTK GUI's so I suppose
> that is ought to cover the terminal use-cases as well?
For a terminal this will need to work differently. We don't have a
mouse hover event, and it might be tricky to make it work well. But the
balloon could also be triggered in other ways, e.g. a right mouse button
click. Or something on an autocommand.
Anyway, adding the function to show a balloon in the GUI should be easy,
doing this in the terminal is a bit of a challange.
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