pehapeac za tabove

<?php
/*
Plugin Name: MX WooCommerce custom tabs
Plugin URI: http://media-x.hr
Description: Plugin za dodavanje custom tabova
Version: 1.0
Author: Media X
Author URI: http://media-x.hr
License: GPLv3 or later License
URI: http://www.gnu.org/licenses/gpl-3.0.html
WC requires at least: 2.2
WC tested up to: 2.4.7
*/

if (!class_exists('mx_custom_tabs')) {

    class mx_custom_tabs {

        public $paths = array();

        public function path($name, $file = '') {
            return $this->paths[$name] . (strlen($file) > 0 ? '/' . preg_replace('/^\//', '', $file) : '');
        }

        public function assetUrl($file)  {
            return $this->paths['BASE_URI'] . $this->path('ASSETS_DIR_NAME', $file);
        }


        function __construct() {

            $this->paths = array(
                'BASE_URI' => $dir = plugin_dir_path( __FILE__ ),
                'ASSETS_DIR_NAME' => 'assets'
            );

            if (is_admin()) {
                add_action('add_meta_boxes', array(&$this, 'dynamic_add_custom_tab'));

                add_action('load-post.php', array($this, 'add_assets') , 4);
                add_action('load-post-new.php', array($this, 'add_assets') , 4 );

                /* Do something with the data entered */
                add_action('save_post', array(&$this, 'dynamic_save_postdata') );
            } else {
                add_action('init', array(&$this, 'init'));
            }

        }


        function init() {
            add_filter('woocommerce_product_tabs', array(&$this, 'product_custom_tabs'));
        }


        function product_custom_tabs ($tabs) {
            global $post;

            $custom_tabs = get_post_meta($post->ID, 'mx_custom_tabs', true);
            $priority = 50;


            if (isset($custom_tabs) && !empty($custom_tabs) && count($custom_tabs) > 0) {
                foreach(@$custom_tabs as $id => $tab) {
                    if (isset($tab['mx_title_product_tab']) && $tab['mx_title_product_tab'] != '' && isset($tab['mx_content_product_tab'])) {
                        $tabs[$id] = array(
                            'title' => $tab['mx_title_product_tab'],
                            'priority' => $priority,
                            'callback' => 'mx_woocommerce_product_custom_tab'
                        );
                    }
                    $priority = $priority + 1;
                }
            }
            return $tabs;
        }


        function add_assets() {
            add_action('print_media_templates', array(&$this, 'add_tmpl') );
            wp_enqueue_script('custom_tab_js', plugins_url('assets/js/custom_tab.js', __FILE__), array( 'jquery' ), '1.0', true);
            wp_enqueue_style('custom_tab_css', plugins_url('assets/css/custom_tab.css', __FILE__));
        }

        public function add_tmpl() {

            $settings = array(
                'textarea_name' => 'mx_custom_tabs[__REPLACE_SSS__][mx_content_product_tab]',
                'textarea_rows' => 3,
                'quicktags' => true,
                'tinymce' => true
            );

            ob_start(); ?>

            <script type="text/html" id="tmpl-add-custom-tab">
                <li>
                    <div class="handle-area"></div>
                    <div class="item">
                        <h3><?php esc_html_e('Custom Tab Title', 'mx'); ?></h3>
                        <input type="text" name="mx_custom_tabs[__REPLACE_SSS__][mx_title_product_tab]" value=""/>
                        <p class="desc"><?php esc_html_e('Enter a title for the tab (required)', 'mx'); ?></p>
                    </div>
                    <div class="item wp-editor">
                        <h3><?php esc_html_e('Custom Tab Content', 'mx'); ?></h3>
                        <?php wp_editor( '', '__REPLACE_SSS__', $settings ); ?>
                    </div>
                    <div class="item">
                        <a href="javascript:void(0)" class="button button-secondary remove-custom-tab"><?php _e('Remove Custom Tab', 'mx'); ?></a>
                    </div>
                </li>
            </script>

            <?php echo ob_get_clean();
        }

        function dynamic_add_custom_tab() {
            add_meta_box('mx_dynamic_custom_tab', esc_html__( 'Custom Product Tabs', 'mx' ), array(&$this, 'dynamic_inner_custom_tab'), 'product', 'advanced', 'high');
        }

        /* Prints the box content */
        function dynamic_inner_custom_tab() {
            global $post;

            // Use nonce for verification
            wp_nonce_field( 'mx-custom-tab', 'dynamicMeta_noncename' );
            ?>

            <div id="meta_custom_tabs">

                <?php $custom_tabs = get_post_meta($post->ID, 'mx_custom_tabs', true); ?>

                <ul class="custom-box-holder">

                    <?php if (isset($custom_tabs) && !empty($custom_tabs) && count($custom_tabs) > 0): ?>

                        <?php foreach($custom_tabs as $id => $tab): ?>

                            <?php if (isset($tab['mx_title_product_tab']) || isset($tab['mx_content_product_tab'])): ?>

                                <li>
                                    <div class="handle-area"></div>
                                    <div class="item">
                                        <h3><?php esc_html_e('Custom Tab Title', 'mx'); ?></h3>
                                        <input type="text" name="mx_custom_tabs[<?php echo esc_attr($id); ?>][mx_title_product_tab]" value="<?php echo esc_attr($tab['mx_title_product_tab']); ?>" />
                                        <p class="desc"><?php esc_html_e('Enter a title for the tab (required)', 'mx'); ?></p>
                                    </div>
                                    <div class="item wp-editor">
                                        <h3><?php esc_html_e('Custom Tab Content', 'mx'); ?></h3>
                                        <?php wp_editor( $tab['mx_content_product_tab'], esc_attr($id), array('textarea_name' => 'mx_custom_tabs['. $id .'][mx_content_product_tab]', 'textarea_rows' => 3, 'tinymce' => true, ) ); ?>
                                    </div>
                                    <div class="item">
                                        <a href="javascript:void(0)" class="button button-secondary remove-custom-tab"><?php esc_html_e('Remove Custom Tab', 'mx'); ?></a>
                                    </div>
                                </li>

                            <?php endif; ?>

                        <?php endforeach; ?>

                    <?php endif; ?>

                </ul><!--/ .custom-tabs-->

                <a href="javascript:void(0);" class="button button-primary add-custom-tab"><?php esc_html_e('Add Custom Tab', 'mx'); ?></a>

            </div><?php

        }

        /* When the post is saved, saves our custom data */
        function dynamic_save_postdata ($post_id) {

            // verify if this is an auto save routine.
            // If it is our form has not been submitted, so we dont want to do anything
            if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
                return;

            // verify this came from the our screen and with proper authorization,
            // because save_post can be triggered at other times
            if ( !isset( $_POST['dynamicMeta_noncename'] ) )
                return;

            if ( !wp_verify_nonce( $_POST['dynamicMeta_noncename'], 'mx-custom-tab' ) )
                return;

            if ( !isset( $_POST['mx_custom_tabs'] ) ) {
                $_POST['mx_custom_tabs'] = '';
            }

            $tabs = $_POST['mx_custom_tabs'];
            update_post_meta($post_id, 'mx_custom_tabs', $tabs);
        }

    }

function mx_woocommerce_product_custom_tab($key)
{
    global $post;

    $mx_title_product_tab = $mx_content_product_tab = '';
    $custom_tabs_array = get_post_meta($post->ID, 'mx_custom_tabs', true);
    $custom_tab = $custom_tabs_array[$key];

    extract($custom_tab);

    if ($mx_title_product_tab != '') {
        echo do_shortcode($mx_content_product_tab);
    }
}

    new mx_CUSTOM_TABS();

}