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<?php

if (!defined('ABSPATH')) {
die('No direct access.');
}

/**
 * Slide class represting a single slide. This is extended by type specific
 * slides (eg, MetaImageSlide, MetaYoutubeSlide (pro only), etc)
 */
class MetaSlide
{
    public $slide = 0;
    public $slider = 0;
    public $settings = array(); // slideshow settings


    /**
     * Constructor
     */
    public function __construct()
    {

        add_action('wp_ajax_update_slide_image', array( $this, 'ajax_update_slide_image' ));
    }

    /**
     * Set the slide
     *
     * @param int $id ID
     */
    public function set_slide($id)
    {
        $this->slide = get_post($id);
    }

    /**
     * Set the slide (that this slide belongs to)
     *
     * @param int $id ID
     */
    public function set_slider($id)
    {
        $this->slider = get_post($id);
        $this->settings = get_post_meta($id, 'ml-slider_settings', true);
    }


    /**
     * Return the HTML for the slide
     *
     * @param  int $slide_id  Slide ID
     * @param  int $slider_id Slider ID
     * @return array complete array of slides
     */
    public function get_slide($slide_id, $slider_id)
    {
        $this->set_slider($slider_id);
        $this->set_slide($slide_id);
        return $this->get_slide_html();
    }

    /**
     * Save the slide
     *
     * @param  int    $slide_id  Slide ID
     * @param  int    $slider_id Slider ID
     * @param  string $fields    SLider fields
     */
    public function save_slide($slide_id, $slider_id, $fields)
    {
        $this->set_slider($slider_id);
        $this->set_slide($slide_id);
        $this->save($fields);
        do_action('metaslider_save_slide', $slide_id, $slider_id, $fields);
    }


    /**
     * Updates the slide meta value to a new image.
     *
     * @param int $slide_id     The id of the slide being updated
     * @param int $image_id     The id of the new image to use
     * @param int $slideshow_id The id of the slideshow
     *
     * @return array|WP_error The status message and if success, the thumbnail link
     */
    protected function update_slide_image($slide_id, $image_id, $slideshow_id = null)
    {
        /*
        * Verifies that the $image_id is an actual image
        */
        if ( ! ( $thumbnail_url_small = $this->get_intermediate_image_src( 240, $image_id ) ) ) {
            return new WP_Error('update_failed', __('The requested image does not exist. Please try again.', 'ml-slider'), array('status' => 409));
        }

        /*
         * Updates database record and thumbnail if selection changed, assigns it to the slideshow, crops the image
         */
        update_post_meta( $slide_id, '_thumbnail_id', $image_id );
        if ( $slideshow_id ) {
            $this->set_slider( $slideshow_id );

            // Get cropped images for srcset attribute
            $thumbnail_url_large = $this->get_intermediate_image_src( 1024, $image_id );
            $thumbnail_url_medium  = $this->get_intermediate_image_src( 768, $image_id );

            // get resized image
            $imageHelper = new MetaSliderImageHelper(
                $slide_id,
                $this->settings['width'],
                $this->settings['height'],
                isset($this->settings['smartCrop']) ? $this->settings['smartCrop'] : 'false'
            );

            return array(
                'message' => __( 'The image was successfully updated.', 'ml-slider' ),
                'thumbnail_url_small' => $thumbnail_url_small,
                'thumbnail_url_medium' => $thumbnail_url_medium,
                'thumbnail_url_large' => $thumbnail_url_large,
                'img_url' => $imageHelper ? $imageHelper->get_image_url() : wp_get_attachment_image_url( $image_id, 'full' )
            );
        }

        return new WP_Error( 
            'update_failed', 
            __( 'There was an error updating the image. Please try again', 'ml-slider' ), 
            array( 'status' => 409 ) 
        );
    }

    /**
     * Ajax wrapper to update the slide image.
     *
     * @return String The status message and if success, the thumbnail link (JSON)
     */
    public function ajax_update_slide_image()
    {
        if (! isset($_REQUEST['_wpnonce']) || ! wp_verify_nonce(sanitize_key($_REQUEST['_wpnonce']), 'metaslider_update_slide_image')) {
            wp_send_json_error(array(
                'message' => __('The security check failed. Please refresh the page and try again.', 'ml-slider')
            ), 401);
        }

        $capability = apply_filters('metaslider_capability', MetaSliderPlugin::DEFAULT_CAPABILITY_EDIT_SLIDES);
        if (! current_user_can($capability)) {
            wp_send_json_error(
                [
                    'message' => __('Access denied. Sorry, you do not have permission to complete this task.', 'ml-slider')
                ],
                403
            );
        }

        if (! isset($_POST['slide_id']) || ! isset($_POST['image_id']) || ! isset($_POST['slider_id'])) {
            wp_send_json_error(
                [
                    'message' => __('Bad request', 'ml-slider'),
                ],
                400
            );
        }

        $result = $this->update_slide_image(
            absint($_POST['slide_id']),
            absint($_POST['image_id']),
            absint($_POST['slider_id'])
        );

        if (is_wp_error($result)) {
            wp_send_json_error(array(
                'message' => $result->get_error_message()
            ), 409);
        }
        wp_send_json_success($result, 200);
    }

    /**
     * Return the correct slide HTML based on whether we're viewing the slides in the
     * admin panel or on the front end.
     *
     * @return string slide html
     */
    public function get_slide_html()
    {

        // If we are on the MetaSlider settings page, and the user has permission
        // return the admin style slides
        $on_settings_page = isset($_GET['page']) && ('metaslider' === $_GET['page']);
        $has_permission = current_user_can(apply_filters('metaslider_capability', MetaSliderPlugin::DEFAULT_CAPABILITY_EDIT_SLIDES));
        $ajax_call = apply_filters('wp_doing_ajax', defined('DOING_AJAX') && DOING_AJAX);
        $rest_call = defined('REST_REQUEST') && REST_REQUEST;

        if (is_admin() && $on_settings_page && $has_permission && !$ajax_call && !$rest_call) {
            return $this->get_admin_slide();
        }

        // Otherwise deliver the public slide markup
        return $this->get_public_slide();
    }

    /**
     * Check if a slide already exists in a slideshow
     *
     * @param  string $slider_id Slider ID
     * @param  string $slide_id  SLide ID
     * @return string
     */
    public function slide_exists_in_slideshow($slider_id, $slide_id)
    {

        return has_term($slider_id, 'ml-slider', $slide_id);
    }

    /**
     * Check if a slide has already been assigned to a slideshow
     *
     * @param  string $slider_id Slider ID
     * @param  string $slide_id  SLide ID
     * @return string
     */
    public function slide_is_unassigned_or_image_slide($slider_id, $slide_id)
    {

        $type = get_post_meta($slide_id, 'ml-slider_type', true);

        return ! strlen($type) || $type == 'image';
    }


    /**
     * Build image HTML
     *
     * @param array $attributes Anchor attributes
     * @return string image HTML
     */
    public function build_image_tag($attributes)
    {
        $attachment_id = $this->get_attachment_id();

        if (('disabled' == $this->settings['smartCrop'] || 'disabled_pad' == $this->settings['smartCrop']) && ('image' == $this->identifier || 'html_overlay' == $this->identifier)) {
            // This will use WP built in image building so we can remove some of these attributes
            unset($attributes['src']);
            unset($attributes['height']);
            unset($attributes['width']);
            return wp_get_attachment_image($attachment_id, apply_filters('metaslider_default_size', 'full', $this->slider), false, $attributes);
        }
        $html = "<img";
        foreach ($attributes as $att => $val) {
            if (strlen($val)) {
                $html .= " " . $att . '="' . esc_attr($val) . '"';
            } else if ($att == 'alt') {
                $html .= " " . $att . '=""'; // always include alt tag for HTML5 validation
            }
        }
        $html .= " />";
        return $html;
    }


    /**
     * Build image HTML
     *
     * @param array  $attributes Anchor attributes
     * @param string $content    Anchor contents
     * @return string image HTML
     */
    public function build_anchor_tag($attributes, $content)
    {

        $html = "<a";

        foreach ($attributes as $att => $val) {
            if (strlen($val)) {
                $html .= " " . $att . '="' . esc_attr($val) . '"';
            }
        }

        $html .= ">" . $content . "</a>";

        return $html;
    }


    /**
     * Create a new post for a slide. Tag a featured image to it.
     *
     * @since 3.4
     * @param string $media_id  - Media File ID to use for the slide
     * @param string $type      - the slide type identifier
     * @param int    $slider_id - the parent slideshow ID
     * @return int $slide_id - the ID of the newly created slide
     */
    public function insert_slide($media_id, $type, $slider_id)
    {

        // Store the post in the database (without translation)
        $slide_id = wp_insert_post(
           array(
               'post_title' => "Slider {$slider_id} - {$type}",
               'post_status' => 'publish',
               'post_type' => 'ml-slide'
           )
        );

        // Send back a friendlier error message
        if (is_wp_error($slide_id)) {
            return new WP_Error('create_failed', __('There was an error while updating the database. Please try again.', 'ml-slider'), array('status' => 409));
        }

        // Set the image to the slide
        set_post_thumbnail($slide_id, $media_id);

        $this->add_or_update_or_delete_meta($slide_id, 'type', $type);
        return $slide_id;
    }


    /**
     * Tag the slide attachment to the slider tax category
     */
    public function tag_slide_to_slider()
    {
        $termExists = function_exists('wpcom_vip_term_exists') ?
            wpcom_vip_term_exists($this->slider->ID, 'ml-slider')
            : term_exists($this->slider->ID, 'ml-slider'); // phpcs:ignore WordPressVIPMinimum.Functions.RestrictedFunctions.term_exists_term_exists


        if (! $termExists) {
            // create the taxonomy term, the term is the ID of the slider itself
            wp_insert_term($this->slider->ID, 'ml-slider');
        }

        // get the term thats name is the same as the ID of the slider
        $term = get_term_by('name', $this->slider->ID, 'ml-slider');
        // tag this slide to the taxonomy term
        wp_set_post_terms($this->slide->ID, $term->term_id, 'ml-slider', true);

        $this->update_menu_order();
    }


    /**
     * Ouput the slide tabs
     */
    public function get_admin_slide_tabs_html()
    {

        return $this->get_admin_slide_tab_titles_html() . $this->get_admin_slide_tab_contents_html();
    }


    /**
     * Generate the HTML for the tabs
     */
    public function get_admin_slide_tab_titles_html()
    {

        $tabs = apply_filters('metaslider_slide_tabs', $this->get_admin_tabs(), $this->slide, $this->slider, $this->settings);

        $return = "<ul class='tabs'>";

        foreach ($tabs as $id => $tab) {
            
            $pos = array_search($id, array_keys($tabs));

            if ($tab['title'] == 'Mobile') {
                $add_class = 'flex-setting';
                if($this->settings['type'] != 'flex') {
                    $hide = 'display: none';
                } else {
                    $hide = '';
                }
            } else {
                $add_class = '';
                $hide = '';
            }

            $selected = $pos == 0 ? "class='selected " . esc_attr($add_class) . "' style='" . esc_attr($hide) . "'" : "class='" . esc_attr($add_class) . "' style='" . esc_attr($hide) . "'";

            $return .= "<li {$selected} ><a tabindex='0' href='#' data-tab_id='tab-" . esc_attr($pos) . "'>" . esc_html($tab['title']) . "</a></li>";
        }

        $return .= "</ul>";

        return $return;
    }

    /**
     * Generate the HTML for the delete button
     *
     * @return string
     */
    public function get_delete_button_html()
    {
        return "<button class='toolbar-button delete-slide alignright tipsy-tooltip-top' title='" . esc_attr__("Trash slide", "ml-slider") . "' data-slide-id='" . esc_attr($this->slide->ID) . "'><i><svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-x'><line x1='18' y1='6' x2='6' y2='18'/><line x1='6' y1='6' x2='18' y2='18'/></svg></i></button>";
    }

    /**
     * Generate the HTML for the undelete button
     *
     * @return string
     */
    public function get_undelete_button_html()
    {
        return "<a href='#' onclick='return false;' class='trash-view-restore' data-slide-id='" . esc_attr($this->slide->ID) . "'>" . esc_html__('Restore', 'ml-slider') . "</a>";
    }

    /**
     * Generate the HTML for the perminant button
     *
     * @return string
     */
    public function get_permanent_delete_button_html()
    {
        return "<a href='#' onclick='return false;' class='trash-view-permanent' data-slide-id='" . esc_attr($this->slide->ID) . "'>" . esc_html__('Delete Permanently', 'ml-slider') . "</a>";
    }

    /**
     * Generates the HTML for the update slide image button
     *
     * @return string The html for the edit button on a slide image
     */
    public function get_update_image_button_html()
    {
        $attachment_id = $this->get_attachment_id();
        $slide_type = get_post_meta($this->slide->ID, 'ml-slider_type', true);
        return "<button class='toolbar-button update-image alignright tipsy-tooltip-top' data-slide-type='" . esc_attr($slide_type) . "' data-button-text='" . esc_attr__("Update slide image", "ml-slider") . "' title='" . esc_attr__("Update slide image", "ml-slider") . "' data-slide-id='" . esc_attr($this->slide->ID) . "' data-attachment-id='" . esc_attr($attachment_id) . "'><i><svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-edit-2'><polygon points='16 3 21 8 8 21 3 21 3 16 16 3'/></svg></i></button>";
    }

    /**
     * Generates the HTML for the duplicate slide button
     *
     * @return string The html for the duplicate button
     */
    public function get_duplicate_slide_button_html()
    {
        $attachment_id = $this->get_attachment_id();
        $slide_type = get_post_meta($this->slide->ID, 'ml-slider_type', true);
        return "<button class='toolbar-button duplicate-slide duplicate-slide-" . $slide_type . " alignright tipsy-tooltip-top' data-slide-type='" . esc_attr($slide_type) . "' data-button-text='" . esc_attr__("Duplicate slide", "ml-slider") . "' title='" . esc_attr__("Duplicate slide", "ml-slider") . "' data-slide-id='" . esc_attr($this->slide->ID) . "' data-attachment-id='" . esc_attr($attachment_id) . "'><i><svg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' class='feather feather-copy'><rect x='9' y='9' width='13' height='13' rx='2' ry='2'></rect><path d='M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1'></path></svg></i></button>";
    }

    /**
     * Generate the HTML for the tab content
     */
    public function get_admin_slide_tab_contents_html()
    {

        $tabs = apply_filters('metaslider_slide_tabs', $this->get_admin_tabs(), $this->slide, $this->slider, $this->settings);

        $return = "<div class='tabs-content flex-grow'>";

        foreach ($tabs as $id => $tab) {
            $pos = array_search($id, array_keys($tabs));

            $hidden = $pos != 0 ? "style='display: none;'" : "";

            $return .= "<div class='h-full tab tab-{$pos}' {$hidden}>{$tab['content']}</div>";
        }

        $return .= "</div>";

        return $return;
    }


    /**
     * Ensure slides are added to the slideshow in the correct order.
     *
     * Find the highest slide menu_order in the slideshow, increment, then
     * update the new slides menu_order.
     */
    public function update_menu_order()
    {

        $menu_order = 0;

        // get the slide with the highest menu_order so far
        $args = array(
            'force_no_custom_order' => true,
            'orderby' => 'menu_order',
            'order' => 'DESC',
            'post_type' => array('attachment', 'ml-slide'),
            'post_status' => array('inherit', 'publish'),
            'lang' => '', // polylang, ingore language filter
            'suppress_filters' => 1, // wpml, ignore language filter
            'posts_per_page' => 1,
            'tax_query' => array(
                array(
                    'taxonomy' => 'ml-slider',
                    'field' => 'slug',
                    'terms' => $this->slider->ID
                )
            )
        );

        $query = new WP_Query($args);

        while ($query->have_posts()) {
            $query->next_post();
            $menu_order = $query->post->menu_order;
        }

        wp_reset_query();

        // increment
        $menu_order = $menu_order + 1;

        // update the slide
        wp_update_post(array(
                'ID' => $this->slide->ID,
                'menu_order' => $menu_order
            ));
    }


    /**
     * If the meta doesn't exist, add it
     * If the meta exists, but the value is empty, delete it
     * If the meta exists, update it
     *
     * @param int    $post_id Post ID
     * @param string $name    SLider Name
     * @param int    $value   Slaider Value
     */
    public function add_or_update_or_delete_meta($post_id, $name, $value)
    {
        $key = "ml-slider_" . $name;

        if (is_string($value)) {
            $value = trim($value);
        }

        if (false === $value || $value === 'false' || $value === "off" || $value === '') {
            delete_post_meta($post_id, $key);
        } else {
            update_post_meta($post_id, $key, $value);
        }
    }


    /**
     * Detect a [metaslider] or [ml-slider] shortcode in the slide caption, which has an ID that matches the current slideshow ID
     *
     * @param string $content Content for shortcode
     * @return  boolean
     */
    protected function detect_self_metaslider_shortcode($content)
    {
        $pattern = get_shortcode_regex();

        if (preg_match_all('/' . $pattern . '/s', $content, $matches) && array_key_exists(2, $matches) && ( in_array('metaslider', $matches[2]) || in_array('ml-slider', $matches[2]) )) {
            // caption contains [metaslider] shortcode
            if (array_key_exists(3, $matches) && array_key_exists(0, $matches[3])) {
                // [metaslider] shortcode has attributes
                $attributes = shortcode_parse_atts($matches[3][0]);

                if (isset($attributes['id']) && $attributes['id'] == $this->slider->ID) {
                    // shortcode has ID attribute that matches the current slideshow ID
                    return true;
                }
            }
        }

        return false;
    }

    /**
     * Get the attachment ID
     *
     * @return Integer - the attachment ID
     */
    public function get_attachment_id()
    {
        if ('attachment' == $this->slide->post_type) {
            return $this->slide->ID;
        } else {
            return get_post_thumbnail_id($this->slide->ID);
        }
    }

    /**
     * Get the thumbnail for the slide
     * Use get_intermediate_image_src() instead when possible - since @3.60
     * 
     * @return string
     */
    public function get_thumb()
    {
        if (get_post_type($this->slide->ID) == 'attachment') {
            $image = wp_get_attachment_image_src($this->slide->ID, 'thumbnail');
        } else {
            $image = wp_get_attachment_image_src(get_post_thumbnail_id($this->slide->ID), 'thumbnail');
        }

        if (isset($image[0])) {
            return $image[0];
        }

        return "";
    }

    /**
     * Get the closest image based on a width size
     * 
     * @since 3.60
     * 
     * @param int $width            Image width we want to target
     * @param int $attachment_id    Optional image ID. We use in ajax_update_slide_image()
     * 
     * @return string 
     */
    public function get_intermediate_image_src( $width, $attachment_id = false )
    {
        /* If the post type is 'attachment', we return get_thumb() 
         * for possible backward compatibility */
        if ( isset( $this->slide->ID ) && get_post_type( $this->slide->ID ) == 'attachment' ) {
            return $this->get_thumb();
        }

        if ( ! $attachment_id ) {
            $attachment_id  = get_post_thumbnail_id( $this->slide->ID );
        }
        
        $image_sizes = wp_get_attachment_image_src( $attachment_id, 'full' );

        if ( is_array( $image_sizes ) && count( $image_sizes ) ) {
            $original_width = $image_sizes[1]; // Image width value from array
            
            // Find the closest image size to $width in width
            $sizes = get_intermediate_image_sizes(); // phpcs:ignore WordPressVIPMinimum.Functions.RestrictedFunctions.get_intermediate_image_sizes_get_intermediate_image_sizes

            // Default if no smaller size is found
            $closest_size = 'full'; 

            foreach ( $sizes as $size ) {
                $size_info  = image_get_intermediate_size( $attachment_id, $size );

                if ( isset( $size_info['width'] ) 
                    && $size_info['width'] >= $width 
                    && $size_info['width'] < $original_width 
                ) {
                    $closest_size = $size;
                    break;
                }
            }

            // Get the URL of the closest image size.
            $closest_image = wp_get_attachment_image_src( $attachment_id, $closest_size );
            
            // $closest_image[0] URL
            // $closest_image[1] width
            // $closest_image[2] height
            // $closest_image[3] boolean for: is the image cropped?

            if ( is_array( $closest_image ) ) {
                $image_ = is_ssl() ? set_url_scheme( $closest_image[0], 'https' ) : set_url_scheme( $closest_image[0], 'http' );
                return $image_;
            }
        }

        return '';
    }

    /**
     * Slide thumb image HTML in admin
     * 
     * @since 3.60
     * 
     * @return html
     */
    public function get_admin_slide_thumb()
    {
        $thumb_small    = $this->get_intermediate_image_src( 240 );
        $thumb_medium   = $this->get_intermediate_image_src( 768 );
        $thumb_large    = $this->get_intermediate_image_src( 1024 );
        $slide_type     = get_post_meta( $this->slide->ID, 'ml-slider_type', true );
        $attachment_id  = $this->get_attachment_id();
        
        $html = '<div class="metaslider-ui-inner metaslider-slide-thumb">
            <button class="update-image image-button" data-slide-type="' . 
            esc_attr( $slide_type ) . '" data-button-text="' . 
            esc_attr__( 'Update slide image', 'ml-slider' ) . '" title="' . 
            esc_attr__( 'Update slide image', 'ml-slider' ) . '" data-slide-id="' . 
            esc_attr( $this->slide->ID ) . '" data-attachment-id="' . 
            esc_attr( $attachment_id ) . '">
                <div class="thumb">
                    <img style="display:none" src="' . 
                    esc_url( $thumb_small ) . '" srcset="' . 
                    esc_url( $thumb_large ) . ' 1024w, ' . 
                    esc_url( $thumb_medium ) . ' 768w, ' . 
                    esc_url( $thumb_small ) . ' 240w" sizes="(min-width: 990px) and (max-width: 1024px) 1024px, (max-width: 768px) 768px, 240px" />
                </div>
            </button>
        </div>';

        return $html;
    }

    /**
     * HTML output for switch toggle
     * 
     * @since 3.60
     * 
     * @param string $name      Valid input name
     * @param bool $isChecked   true or false
     * @param array $attrs      Optional array of attributes. e.g. array( 'lorem' => 'value' )
     * @param string $class     Optional CSS classes for the wrapper
     * 
     * @return html
     */
    public function switch_button( $name, $isChecked, $attrs = array(), $class = '' )
    {
        $html = '<div class="ms-switch-button' . 
            esc_attr( ! empty( $class ) ? ' ' . $class : '' ) . '">
            <label><input type="checkbox" name="' . 
                esc_attr( $name ) . '"' . 
               ( $isChecked ? ' checked="checked"' : '' );
                
                // Append $attrs as valid HTML attributes
                foreach( $attrs as $item => $value ) {
                    $html .= ' ' . esc_attr( $item ) . '="' . esc_attr( $value ) . '"';
                }
                
        $html .= ' /><span></span>
        </label>
        </div>';

        return $html;
    }

    /**
     * Info icon with tooltip
     * 
     * @since 3.60
     * 
     * @return html
     */
    public function info_tooltip( $label )
    {
        $html = '<span class="dashicons dashicons-info tipsy-tooltip-top" title="' . 
            esc_attr( $label ) . '"></span>';

        return $html;
    }

    /**
     * Include slider assets, JS and CSS paths are specified by child classes.
     */
    public function enqueue_scripts()
    {
        if (filter_var($this->get_setting('printJs'), FILTER_VALIDATE_BOOLEAN)) {
            $handle = 'metaslider-' . $this->get_setting('type') . '-slider';
            wp_enqueue_script($handle, METASLIDER_ASSETS_URL . $this->js_path, array('jquery'), METASLIDER_ASSETS_VERSION);
            $this->wp_add_inline_script($handle, $this->get_inline_javascript());
        }

        if (filter_var($this->get_setting('printCss'), FILTER_VALIDATE_BOOLEAN)) {
            wp_enqueue_style('metaslider-' . $this->get_setting('type') . '-slider', METASLIDER_ASSETS_URL . $this->css_path, false, METASLIDER_ASSETS_VERSION);
            wp_enqueue_style('metaslider-public', METASLIDER_ASSETS_URL . 'metaslider/public.css', false, METASLIDER_ASSETS_VERSION);

            $extra_css = apply_filters("metaslider_css", "", $this->settings, $this->id);
            wp_add_inline_style('metaslider-public', $extra_css);
        }

        

        wp_enqueue_script('metaslider-script', METASLIDER_ASSETS_URL . 'metaslider/script.min.js', array('jquery'), METASLIDER_ASSETS_VERSION);

        do_action('metaslider_register_public_styles');
    }

    public function get_global_settings() {
        if (is_multisite() && $settings = get_site_option('metaslider_global_settings')) {
            return $settings;
        }

        if ($settings = get_option('metaslider_global_settings')) {
            return $settings;
        }
    }

    /**
     * Get mobile CSS on al slide types
     */
    public function get_mobile_css_class($slide_id)
    {
        $device = array('smartphone', 'tablet', 'laptop', 'desktop');
        $mobile_class = '';
        foreach ($device as $value) {
            $hidden_slide = get_post_meta( $slide_id , 'ml-slider_hide_slide_' . $value, true );
            if(!empty($hidden_slide)) {
              $mobile_class .= 'hidden_' . $value . ' ';
            }
        }
        return $mobile_class;
    }

    /**
     * Sanitize HTML and avoid rgb() color being stripped by wp_filter_post_kses
     * 
     * @since 3.62
     * 
     * @param html $content
     * 
     * @return html
     */
    public function cleanup_content_kses( $content ) {
        
        // Remove any script tag instance
        $content = preg_replace( '/<script[^>]*>.*?<\/script>/', '', $content );
    
        return $content;
    }
    
}