Re: Adding an xfconf enum property and binding it to multiple ui radio buttons

Hi!

I would suggest continuing this conversation either in a GitLab issue or
merge request (
https://gitlab.xfce.org/panel-plugins/xfce4-pulseaudio-plugin/-/issues).

I've given you fork rights on gitlab.xfce.org so you can create a merge
request.

Cheers
Simon

On Mon, Sep 5, 2022 at 9:14 AM Sparr <[email protected]> wrote:

> Hello. This is my first post to the list, and my first time attempting
> to do development related to Xfce. For my first foray into the
> codebase, I am trying to implement a new feature in
> xfce4-pulseaudio-plugin, the panel plugin that commonly provides
> volume indication and control.
>
> My new feature will allow the user to configure the behavior when the
> panel icon is middle clicked. Specifically, instead of the current
> behavior of toggling the volume mute, I want to cycle through output
> devices. I was able to get that specific functionality working without
> much trouble, and while I would be open to code review now, I expect
> I'll get plenty of feedback on that when I have this all ready to
> submit a patch.
>
> Here's the code I have so far. The link goes directly to a problematic
> location, but the previous two commits cover all the code changes I've
> made so far.
> https://github.com/sparr/xfce4-pulseaudio-plugin/blob/8a8dc20f300ed86ed3abeb8b66b86fe9870b621c/panel-plugin/pulseaudio-dialog.c#L291
>
> Where I've hit a roadblock is in trying to add a configuration
> property to choose between the two behaviors, and present that in the
> panel properties GUI. I chose to present the choices as radio buttons,
> although I understand that a menu or radiomenu could also work. I can
> see and interact with the radio buttons, but when I select them I see
> an error in the panel output:
> "(wrapper-2.0:492812): xfconf-CRITICAL **: 01:11:14.622:
> IA__xfconf_channel_set_property: assertion 'XFCONF_IS_CHANNEL(channel)
> && property && G_IS_VALUE(value)' failed". I also note that
> xfconf-query does not show the existence of the new property
> ("middle-click-action"). So, my first request for assistance is in
> figuring out what I've done wrong such that the property isn't being
> created or updated.
>
> My second concern is regarding the very brute force approach I've
> taken to the GBinding between the radio buttons and the enum property.
> I wasn't able to find an example of binding multiple UI elements to
> the same property. It feels like there should be a straightforward way
> to bind radio buttons to an enum, or checkbuttons to flags. I would
> appreciate any guidance on this front, although I suspect I can do
> better on my own if I spend some time building a custom binding
> implementation.
>
> Thanks in advance for any help!
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