File woocommerce/checkout/form.php

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<?php

namespace SIW\WooCommerce\Checkout;

/**
 * WooCommerce checkout formulier
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 * @since     3.0.0
 */
class Form{
    /**
     * Init
     */
    public static function init() {
        $self = new self();
        add_action( 'wp_enqueue_scripts', [ $self, 'add_postcode_script' ] );
        add_filter( 'woocommerce_form_field_args', [ $self, 'add_form_field_classes' ] );
        add_filter( 'woocommerce_form_field_radio', [ $self, 'add_form_field_markup' ] );
        add_filter( 'woocommerce_form_field_checkbox', [ $self, 'add_form_field_markup' ] );
        add_action( 'woocommerce_multistep_checkout_before_order_info', [ $self, 'show_checkout_partner_fields'] );
        add_filter( 'woocommerce_checkout_cart_item_quantity', '__return_empty_string' );
        add_filter( 'wc_get_template', [ $self, 'set_checkout_templates'], 10, 5 );
    }

    /**
     * Haalt checkoutvelden op
     *
     * @param array $checkout_fields
     * @return array
     */
    protected function get_checkout_fields( $checkout_fields = [] ) {
        $checkout_fields = wp_parse_args_recursive( siw_get_data( 'workcamps/checkout-fields' ), $checkout_fields );
        return $checkout_fields;
    }

    /**
     * Haalt secties voor checkoutvelden op
     *
     * @return array
     */
    protected function get_checkout_sections() {
        $checkout_sections = siw_get_data( 'workcamps/checkout-sections' );
        return $checkout_sections;
    }

    /**
     * Toont de extra checkoutvelden
     *
     * @param \WC_Checkout $checkout
     */
    public function show_checkout_partner_fields( \WC_Checkout $checkout ) {

        $checkout_sections = $this->get_checkout_sections();
        $checkout_fields = $this->get_checkout_fields();
        ?>
        <h1><?php esc_html_e( 'Informatie voor partner', 'siw' );?></h1>
        <div class="woocommerce-extra-fields">
            <?php foreach ( $checkout_sections as $section => $header ) :?>
            <div id="<?= esc_attr( $section );?>">
                <h3><?= esc_html( $header );?></h3>
                <?php
                foreach ( $checkout_fields[ $section ] as $key => $field ) {
                    woocommerce_form_field( $key, $field, $checkout->get_value( $key ) );
                }
            ?>
            </div>
            <?php endforeach ?>
        </div>
        <?php
    }

    /**
     * Voegt inline script voor postcode lookup toe
     */
    public function add_postcode_script() {

        wp_register_script( 'siw-checkout-postcode-lookup', SIW_ASSETS_URL . 'js/siw-checkout-postcode-lookup.js', ['siw-api-postcode'], SIW_PLUGIN_VERSION, true );

        $postcode_selectors = [
            'postcode'    => "billing_postcode",
            'housenumber' => "billing_housenumber",
            'street'      => "billing_address_1",
            'city'        => "billing_city",
        ];
        wp_localize_script( 'siw-checkout-postcode-lookup', 'siw_checkout_postcode_selectors', $postcode_selectors );

        if ( is_checkout() && ! is_order_received_page() && ! is_checkout_pay_page() ) {
            wp_enqueue_script( 'siw-checkout-postcode-lookup' );
        }
    }

    /**
     * Voegt extra markup voor gestylde radiobuttons en checkboxes toe
     *
     * @param string $field
     * @return string
     */
    public function add_form_field_markup( string $field ) {
        $field = preg_replace( '/<input(.*?)>/', '<input$1><span class="control-indicator"></span>', $field );
        return $field;
    }

    /**
     * Voegt extra classes voor gestylde radiobuttons en checkboxes toe
     *
     * @param array $args
     * @return array
     */
    public function add_form_field_classes( array $args ) {
        if ( $args['type'] == 'radio' ) {
            $args['class'][] = 'control-radio';
        }
        if ( $args['type'] == 'checkbox' ) {
            $args['class'][] = 'control-checkbox';
        }
        return $args;
    }

    /**
     * Overschrijft templates
     *
     * @param string $located
     * @param string $template_name
     * @param array $args
     * @param string $template_path
     * @param string $default_path
     * @return string
     */
    public function set_checkout_templates( string $located, string $template_name, array $args, string $template_path, string $default_path ) {
        if ( 'checkout/payment-method.php' === $template_name ) {
            $located = SIW_TEMPLATES_DIR . '/woocommerce/'. $template_name;
        }
        return $located;
    }
}

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