[Vala] Difference between setting "vapidir" and adding a .vapi file (was "Global key shortcuts")

[rastersoft <raster rastersoft com>]

Hi:

Finally I found the library "keybinder". It doesn't work no wayland, but
at least allows me to do what I need in X.

But now I have a problem: the VAPI file isn't available in my system, so
I'm adding it manually. But here comes the odd thing: if I specify the
VAPI file in the command line, it doesn't compile:

    valac -C captura.vala --pkg=gtk+-3.0 --pkg=keybinder-3.0
keybinder-3.0.vapi
    error: Package `keybinder-3.0' not found in specified Vala API
directories or GObject-Introspection GIR directories
    Compilation failed: 1 error(s), 0 warning(s)

But if I just set a "vapidir" with the folder that contains the .vapi
file, everything works fine.

    valac -C captura.vala --pkg=gtk+-3.0 --pkg=keybinder-3.0 --vapidir=.

But with other projects, just adding the .vapi files worked fine (like
the Autovala plugin for Gedit or Scratch, or a plugin for GnomeBuilder
that I'm writing). In both cases the libraries are available system-wide.

So... why does this happen? And what is the difference between just
specifying a .vapi file or putting a --vapidir parameter?

Thanks.

El 20/08/16 a las 04:43, Michael Gratton escribió:
> On Sat, Aug 20, 2016 at 4:33 AM, rastersoft <raster rastersoft com>
> wrote:
> > I'm working on a program that needs to respond to an specific key
> > always, so when I press it, it will show its window. How can I do it
> > from Vala? Is it possible to do that in a way compatible with wayland?
> > (let's say: register a DBus method to be called when that key is
> > pressed, or something like that...)
>
> So even when the window is hidden or not focused or whatnot? That's
> more of a desktop integration issue, isn't it? Maybe there is a
> FDO/XDG method for registering them.
>
> In any case, I imagine you'll probably want to implement
> GApplication/GtkApplication and have you app raise/focus/etc the
> window in response to the activate signal. The desktop then just needs
> to activate the app in response to the global shortcut, by invoking
> that signal via DBus or by executing a new instance of the app, which
> would also send the signal to the already running instance.
>
> //Mike

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Nos leemos
                         RASTER    (Linux user #228804)
raster rastersoft com              http://www.rastersoft.com