243 lines
6.8 KiB
PHP
243 lines
6.8 KiB
PHP
<?php
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/**
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* Class WC_Shipping_Free_Shipping file.
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*
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* @package WooCommerce\Shipping
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* Free Shipping Method.
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*
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* A simple shipping method for free shipping.
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*
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* @class WC_Shipping_Free_Shipping
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* @version 2.6.0
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* @package WooCommerce/Classes/Shipping
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*/
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class WC_Shipping_Free_Shipping extends WC_Shipping_Method {
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/**
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* Min amount to be valid.
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*
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* @var integer
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*/
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public $min_amount = 0;
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/**
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* Requires option.
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*
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* @var string
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*/
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public $requires = '';
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/**
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* Constructor.
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*
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* @param int $instance_id Shipping method instance.
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*/
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public function __construct( $instance_id = 0 ) {
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$this->id = 'free_shipping';
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$this->instance_id = absint( $instance_id );
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$this->method_title = __( 'Free shipping', 'woocommerce' );
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$this->method_description = __( 'Free shipping is a special method which can be triggered with coupons and minimum spends.', 'woocommerce' );
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$this->supports = array(
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'shipping-zones',
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'instance-settings',
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'instance-settings-modal',
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);
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$this->init();
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}
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/**
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* Initialize free shipping.
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*/
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public function init() {
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// Load the settings.
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$this->init_form_fields();
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$this->init_settings();
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// Define user set variables.
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$this->title = $this->get_option( 'title' );
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$this->min_amount = $this->get_option( 'min_amount', 0 );
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$this->requires = $this->get_option( 'requires' );
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$this->ignore_discounts = $this->get_option( 'ignore_discounts' );
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// Actions.
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add_action( 'woocommerce_update_options_shipping_' . $this->id, array( $this, 'process_admin_options' ) );
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add_action( 'admin_footer', array( 'WC_Shipping_Free_Shipping', 'enqueue_admin_js' ), 10 ); // Priority needs to be higher than wc_print_js (25).
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}
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/**
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* Init form fields.
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*/
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public function init_form_fields() {
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$this->instance_form_fields = array(
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'title' => array(
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'title' => __( 'Title', 'woocommerce' ),
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'type' => 'text',
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'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce' ),
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'default' => $this->method_title,
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'desc_tip' => true,
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),
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'requires' => array(
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'title' => __( 'Free shipping requires...', 'woocommerce' ),
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'type' => 'select',
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'class' => 'wc-enhanced-select',
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'default' => '',
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'options' => array(
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'' => __( 'N/A', 'woocommerce' ),
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'coupon' => __( 'A valid free shipping coupon', 'woocommerce' ),
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'min_amount' => __( 'A minimum order amount', 'woocommerce' ),
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'either' => __( 'A minimum order amount OR a coupon', 'woocommerce' ),
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'both' => __( 'A minimum order amount AND a coupon', 'woocommerce' ),
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),
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),
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'min_amount' => array(
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'title' => __( 'Minimum order amount', 'woocommerce' ),
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'type' => 'price',
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'placeholder' => wc_format_localized_price( 0 ),
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'description' => __( 'Users will need to spend this amount to get free shipping (if enabled above).', 'woocommerce' ),
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'default' => '0',
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'desc_tip' => true,
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),
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'ignore_discounts' => array(
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'title' => __( 'Ignore coupons discounts', 'woocommerce' ),
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'type' => 'checkbox',
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'description' => __( 'Discounts will not be applied to the minimum order amount.', 'woocommerce' ),
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'default' => 'no',
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'desc_tip' => true,
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),
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);
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}
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/**
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* Get setting form fields for instances of this shipping method within zones.
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*
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* @return array
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*/
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public function get_instance_form_fields() {
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return parent::get_instance_form_fields();
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}
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/**
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* See if free shipping is available based on the package and cart.
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*
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* @param array $package Shipping package.
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* @return bool
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*/
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public function is_available( $package ) {
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$has_coupon = false;
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$has_met_min_amount = false;
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if ( in_array( $this->requires, array( 'coupon', 'either', 'both' ), true ) ) {
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$coupons = WC()->cart->get_coupons();
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if ( $coupons ) {
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foreach ( $coupons as $code => $coupon ) {
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if ( $coupon->is_valid() && $coupon->get_free_shipping() ) {
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$has_coupon = true;
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break;
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}
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}
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}
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}
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if ( in_array( $this->requires, array( 'min_amount', 'either', 'both' ), true ) ) {
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$total = WC()->cart->get_displayed_subtotal();
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if ( WC()->cart->display_prices_including_tax() ) {
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$total = $total - WC()->cart->get_discount_tax();
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}
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if ( 'no' === $this->ignore_discounts ) {
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$total = $total - WC()->cart->get_discount_total();
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}
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$total = round( $total, wc_get_price_decimals() );
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if ( $total >= $this->min_amount ) {
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$has_met_min_amount = true;
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}
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}
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switch ( $this->requires ) {
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case 'min_amount':
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$is_available = $has_met_min_amount;
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break;
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case 'coupon':
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$is_available = $has_coupon;
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break;
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case 'both':
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$is_available = $has_met_min_amount && $has_coupon;
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break;
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case 'either':
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$is_available = $has_met_min_amount || $has_coupon;
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break;
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default:
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$is_available = true;
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break;
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}
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return apply_filters( 'woocommerce_shipping_' . $this->id . '_is_available', $is_available, $package, $this );
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}
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/**
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* Called to calculate shipping rates for this method. Rates can be added using the add_rate() method.
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*
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* @uses WC_Shipping_Method::add_rate()
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*
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* @param array $package Shipping package.
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*/
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public function calculate_shipping( $package = array() ) {
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$this->add_rate(
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array(
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'label' => $this->title,
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'cost' => 0,
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'taxes' => false,
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'package' => $package,
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)
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);
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}
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/**
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* Enqueue JS to handle free shipping options.
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*
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* Static so that's enqueued only once.
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*/
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public static function enqueue_admin_js() {
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wc_enqueue_js(
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"jQuery( function( $ ) {
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function wcFreeShippingShowHideMinAmountField( el ) {
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var form = $( el ).closest( 'form' );
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var minAmountField = $( '#woocommerce_free_shipping_min_amount', form ).closest( 'tr' );
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var ignoreDiscountField = $( '#woocommerce_free_shipping_ignore_discounts', form ).closest( 'tr' );
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if ( 'coupon' === $( el ).val() || '' === $( el ).val() ) {
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minAmountField.hide();
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ignoreDiscountField.hide();
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} else {
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minAmountField.show();
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ignoreDiscountField.show();
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}
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}
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$( document.body ).on( 'change', '#woocommerce_free_shipping_requires', function() {
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wcFreeShippingShowHideMinAmountField( this );
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});
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// Change while load.
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$( '#woocommerce_free_shipping_requires' ).change();
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$( document.body ).on( 'wc_backbone_modal_loaded', function( evt, target ) {
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if ( 'wc-modal-shipping-method-settings' === target ) {
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wcFreeShippingShowHideMinAmountField( $( '#wc-backbone-modal-dialog #woocommerce_free_shipping_requires', evt.currentTarget ) );
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}
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} );
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});"
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);
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}
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}
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