Overriding Form Fields

The siteorigin_widgets_field_registered_class_paths filter replaces a Widgets Bundle form field with your own class. Add a folder of field files to the filter, and the Widgets Bundle loads a file from your folder in place of a base field file with the same name and class. This example adds a fields folder in your plugin:

function siteorigin_load_custom_form_fields( $class_paths ) {
    array_unshift( $class_paths['base'], plugin_dir_path( __FILE__ ) . 'fields/' );
    return $class_paths;
}
add_filter( 'siteorigin_widgets_field_registered_class_paths', 'siteorigin_load_custom_form_fields' );

The snippet works as written in a plugin. The filter runs on init, so add it before init, for example when your plugin loads.

To replace the TinyMCE field, create the fields folder next to the file with the snippet. Add a file named tinymce.class.php, the same name as the base TinyMCE field's file, with this class:

<?php
class SiteOrigin_Widget_Field_TinyMCE extends SiteOrigin_Widget_Field_Text_Input_Base {
    protected function render_field( $value, $instance ) {
        echo 'Field was successfully replaced.';
    }
}

Every TinyMCE field now shows "Field was successfully replaced." in place of the editor. Download the example plugin for the full code and folder structure.