public function form( $instance ) {

		if ( empty( $this->settings ) ) {
			return;
		}

		foreach ( $this->settings as $key => $setting ) {

			$class = isset( $setting['class'] ) ? $setting['class'] : '';
			$value = isset( $instance[ $key ] ) ? $instance[ $key ] : $setting['std'];

			switch ( $setting['type'] ) {

				case 'text':
					?>
					<p>
						<label for="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>"><?php echo wp_kses_post( $setting['label'] ); ?></label><?php // phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped ?>
						<input class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( $key ) ); ?>" type="text" value="<?php echo esc_attr( $value ); ?>" />
					</p>
					<?php
					break;

				case 'number':
					?>
					<p>
						<label for="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>"><?php echo $setting['label']; /* phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped */ ?></label>
						<input class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( $key ) ); ?>" type="number" step="<?php echo esc_attr( $setting['step'] ); ?>" min="<?php echo esc_attr( $setting['min'] ); ?>" max="<?php echo esc_attr( $setting['max'] ); ?>" value="<?php echo esc_attr( $value ); ?>" />
					</p>
					<?php
					break;

				case 'select':
					?>
					<p>
						<label for="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>"><?php echo $setting['label']; /* phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped */ ?></label>
						<select class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( $key ) ); ?>">
							<?php foreach ( $setting['options'] as $option_key => $option_value ) : ?>
								<option value="<?php echo esc_attr( $option_key ); ?>" <?php selected( $option_key, $value ); ?>><?php echo esc_html( $option_value ); ?></option>
							<?php endforeach; ?>
						</select>
					</p>
					<?php
					break;

				case 'textarea':
					?>
					<p>
						<label for="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>"><?php echo $setting['label']; /* phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped */ ?></label>
						<textarea class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( $key ) ); ?>" cols="20" rows="3"><?php echo esc_textarea( $value ); ?></textarea>
						<?php if ( isset( $setting['desc'] ) ) : ?>
							<small><?php echo esc_html( $setting['desc'] ); ?></small>
						<?php endif; ?>
					</p>
					<?php
					break;

				case 'checkbox':
					?>
					<p>
						<input class="checkbox <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( $key ) ); ?>" type="checkbox" value="1" <?php checked( $value, 1 ); ?> />
						<label for="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>"><?php echo $setting['label']; /* phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped */ ?></label>
					</p>
					<?php
					break;

				// Default: run an action.
				default:
					do_action( 'woocommerce_widget_field_' . $setting['type'], $key, $value, $setting, $instance );
					break;
			}
		}
	}