Widget class for use with the Say Hello Roots Theme for WordPress

br_book.twig

{% if widget.text is not empty or widget.text is not empty or widget.image is not empty %}
	<div class="c-widget c-widget--br-book">

		{% if widget.title is not empty %}
			<div class="c-widget__header">
				<h1 class="c-widget__title">{{ widget.title }}</h1>
			</div>
		{% endif %}

		{% if widget.image is not empty or widget.text is not empty %}
			<div class="c-widget__content">
				{% if widget.image is not empty %}
					{{ widget.image }}
				{% endif %}
				{% if widget.text is not empty %}
					<div class="c-widget__text">
						{{ widget.text }}
					</div>
				{% endif %}
			</div>
		{% endif %}

	</div>
{% endif %}

BRBookWidget.php

<?php

namespace SayHello\Theme\Widget;

use SayHello\Theme\Package\ThemeOptions;
use SayHello\Theme\Vendor\LazyImage;
use Timber\Timber;

/**
 * Adds widget for user navigation.
 */
class BRBookWidget extends \WP_Widget
{
	/**
	 * Register widget with WordPress.
	 */
	public function __construct()
	{
		parent::__construct(
			'sht_br_book_widget',
			_x('Book widget', 'Widget title text', 'sht'),
			[
				'description' => _x('A widget to promote a book on Amazon', 'Widget description text', 'sht'),
			]
		);
	}
	public function run()
	{
		add_action('widgets_init', [$this, 'register_widget']);
	}

	//This widget can then be registered in the 'widgets_init' hook:
	// register Widget widget
	public function register_widget()
	{
		register_widget($this);
	}

	/**
	 * Front-end display of widget.
	 *
	 * @see WP_Widget::widget()
	 *
	 * @param array $args     Widget arguments.
	 * @param array $instance Saved values from database.
	 */
	public function widget($args, $instance)
	{
		$context = Timber::get_context();
		$context = ThemeOptions::addToTimberContext($context);

		$context['widget'] = [
			'title' => get_field('title', 'widget_' . $args['widget_id']),
			'text' => get_field('text', 'widget_' . $args['widget_id']),
			'link' => get_field('link', 'widget_' . $args['widget_id']),
		];

		if ($acf_image = get_field('image', 'widget_' . $args['widget_id'])) {
			$image_object = new LazyImage($acf_image, 'widget_br_book');
			$context['widget']['image'] = $image_object->get_image();
		}

		Timber::render('partials/widgets/br_book.twig', $context);
	}

	/**
	 * Back-end widget form.
	 *
	 * @see WP_Widget::form()
	 *
	 * @param array $instance Previously saved values from database.
	 */
	public function form($instance)
	{
	}

	/**
	 * Sanitize widget form values as they are saved.
	 *
	 * @see WP_Widget::update()
	 *
	 * @param array $new_instance Values just sent to be saved.
	 * @param array $old_instance Previously saved values from database.
	 *
	 * @return array Updated safe values to be saved.
	 */
	public function update($new_instance, $old_instance)
	{
		return $instance;
	}
}