You have a #Gtk4 application, written in python with #PyGObject, which use a template to build a window.
If you define a callback in code but you do not use it in template, an exception is raised.
If you use a callback in template which is not defined in code, no errors are reported.
But.
CSS classes are not applied to widgets. 🤷

Look:
With the callback:

Without the callback:

I lost some good hours trying to find why my button was not styled.

#Gtk 4.16.5

New article: "Libadwaita: Splitting GTK and Design Language"

https://tesk.page/2024/06/03/libadwaita-splitting-gtk-and-design-language/

#GNOME #GTK #Libadwaita #OpenSource #FOSS #Linux #GTK4 #Development

Libadwaita: Splitting GTK and Design Language

Recently, the Linux Mint Blog published Monthly News – April 2024, which goes into detail about wanting to fork and maintain older GNOME apps in collaboration with other GTK-based desktop environments.

^{TheEvilSkeleton}

What's up at the Department of Unnecessary Projects #DepUnPr lately?

Here is Oliver ( #vala / #gtk4 / #libadwaita ) running on #osx (12.4, x86_64)

theme is WhiteSur; decoration layout forced in app (both just to make it blend a little more in osx); bundler script adapted from System76 Keyboard Configurator; #gtk4, #libadwaita via homebrew.

(I know: adwaita is a GNOME thing, custom themes are bad, it should be pure gtk etc etc ... , but I had it around and it was small enough for a test)

On a more useful note, while playing with this I've update Oliver interface and added some features and fixed some bugs. I could publish a new version soon.

I would like to release it as a #flatpak, but I'm not sure how to handle running php as as subprocess...

Version 0.7.1 of #Confy, the #gtk4 / #libadwaita conference companion, has been tagged.

This release brings small fixes.
Main highlights are:

• New German translation.
• Flatpak now will use GNOME Runtime 45

#Arch #AUR packages are updated, #flatpak on #Flathub should be on its way.

https://sr.ht/~fabrixxm/Confy/

New little toy project in #vala #gtk4 / #libadwaita : Oliver, a simple GUI for PHPStan.

Select a folder, it runs phpstan found in vendor/bin subfolder, shows (searchable) results, monitors reported file for modification to automatically analyze project while coding.

It's called Oliver because, you know... Stan... Oliver...

Code here:
https://git.sr.ht/~fabrixxm/oliver