Can I register several classes in my theme?

No, that’s not possible currently. I can add in a hook in the next version so that can be done. It’s a good idea ??

Hi @ciorici,

I’ve added two new filters in the development version.

widget_css_classes_default_settings
This filter is only usefull for new websites (without pre-existing settings). It lets you set any setting from the start, overwriting the plugin default settings.

widget_css_classes_set_settings
This filter will overwrite the configuration you set in the admin so be carefull how you use it.
In your case you can use it to append your theme CSS classes to the list of defined classes, like this:

add_filter( 'widget_css_classes_set_settings', 'my_widget_css_classes_settings' );
function my_widget_css_classes_settings( $settings ) {
    $theme_classes = array( 'red', 'blue', 'green' );

    // Append your classes.
    $settings['defined_classes'] = array_merge( $settings['defined_classes'], $theme_classes );

    // Or Prepend your classes.
    $settings['defined_classes'] = array_merge( $theme_classes, $settings['defined_classes'] );

    // Allways remove possible duplicates
    $settings['defined_classes'] = array_unique( $settings['defined_classes'] );

    // And return modified settings array
    return $settings;
}

You can already test the dev version if you want!
https://github.com/cleverness/widget-css-classes/pull/22

Regards, Jory

@keraweb,

Thank you a lot!

Not a problem!

I still need to test it on various installations and check if there are other issues that we can solve within this release but I hope to get it ready in short notice.
I’ll mark this topic as resolved.

Let me know if you have other ideas. And if you want, please consider leaving us a nice review after the new version is out and you have your themes all setup!