将elementor组控件添加到主elementor类或主呈现函数之外的类中

<?php
namespace MyCustomNamespace;

use Elementor\Controls_Manager;
use Elementor\Group_Control_Base;

class MyCustomGroupControl extends Group_Control_Base {
    public function get_type() {
        return 'my_custom_group_control';
    }

    protected function _register_controls() {
        // 在这里注册子控件
        $this->start_controls_section(
            'section_content',
            [
                'label' => __('Content', 'my-custom-namespace'),
            ]
        );

        $this->add_control(
            'title',
            [
                'label' => __('Title', 'my-custom-namespace'),
                'type' => Controls_Manager::TEXT,
            ]
        );

        $this->end_controls_section();
    }
}

<?php
use MyCustomNamespace\MyCustomGroupControl;

function register_my_custom_controls() {
    \Elementor\Plugin::instance()->controls_manager->register_control_type(MyCustomGroupControl::class);
}
add_action('elementor/controls/loaded', 'register_my_custom_controls');

<?php
use Elementor\Widget_Base;

class MyCustomWidget extends Widget_Base {
    protected function _get_control_classes() {
        return ['my_custom_group_control'];
    }

    protected function _register_controls() {
        parent::_register_controls();
        // 在这里添加其他控件
    }

    protected function render() {
        $this->render_template();
    }
}