<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName

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/**

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* Slideshow shortcode.

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* Adds a new "slideshow" gallery type when adding a gallery using the classic editor.

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*

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* @package automattic/jetpack

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*/

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use Automattic\Jetpack\Assets;

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use Automattic\Jetpack\Extensions\Slideshow;

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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/**

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* Slideshow shortcode usage: [gallery type="slideshow"] or the older [slideshow]

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*

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* @phan-constructor-used-for-side-effects

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*/

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class Jetpack_Slideshow_Shortcode {

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/**

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* Number of slideshows on a page.

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*

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* @var int

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*/

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public $instance_count = 0;

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/**

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* Constructor

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*/

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public function __construct() {

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global $shortcode_tags;

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// Only if the slideshow shortcode has not already been defined.

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if ( ! array_key_exists( 'slideshow', $shortcode_tags ) ) {

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add_shortcode( 'slideshow', array( $this, 'shortcode_callback' ) );

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}

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// Only if the gallery shortcode has not been redefined.

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if ( isset( $shortcode_tags['gallery'] ) && 'gallery_shortcode' === $shortcode_tags['gallery'] ) {

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add_filter( 'post_gallery', array( $this, 'post_gallery' ), 1002, 2 );

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add_filter( 'jetpack_gallery_types', array( $this, 'add_gallery_type' ), 10 );

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}

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}

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/**

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* Responds to the [gallery] shortcode, but not an actual shortcode callback.

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*

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* @param string $value An empty string if nothing has modified the gallery output, the output html otherwise.

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* @param array $attr The shortcode attributes array.

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*

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* @return string The (un)modified $value

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*/

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public function post_gallery( $value, $attr ) {

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// Bail if somebody else has done something.

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if ( ! empty( $value ) ) {

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return $value;

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}

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// If [gallery type="slideshow"] have it behave just like [slideshow].

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if ( ! empty( $attr['type'] ) && 'slideshow' === $attr['type'] ) {

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return $this->shortcode_callback( $attr );

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}

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return $value;

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}

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/**

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* Add the Slideshow type to gallery settings

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*

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* @see Jetpack_Tiled_Gallery::media_ui_print_templates

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*

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* @param array $types An array of types where the key is the value, and the value is the caption.

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*

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* @return array

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*/

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public function add_gallery_type( $types = array() ) {

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$types['slideshow'] = esc_html__( 'Slideshow', 'jetpack' );

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return $types;

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}

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/**

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* Display shortcode.

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*

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* @param array $attr Shortcode attributes.

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*/

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public function shortcode_callback( $attr ) {

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$post_id = get_the_ID();

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$attr = shortcode_atts(

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array(

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'trans' => 'fade',

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'order' => 'ASC',

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'orderby' => 'menu_order ID',

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'id' => $post_id,

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'include' => '',

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'exclude' => '',

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'autostart' => true,

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'size' => '',

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),

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$attr,

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'slideshow'

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);

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if ( 'rand' === strtolower( $attr['order'] ) ) {

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$attr['orderby'] = 'none';

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}

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$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );

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if ( ! $attr['orderby'] ) {

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$attr['orderby'] = 'menu_order ID';

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}

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if ( ! $attr['size'] ) {

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$attr['size'] = 'full';

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}

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// Don't restrict to the current post if include.

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$post_parent = ( empty( $attr['include'] ) ) ? (int) $attr['id'] : null;

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$attachments = get_posts(

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array(

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'post_status' => 'inherit',

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'post_type' => 'attachment',

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'post_mime_type' => 'image',

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'posts_per_page' => - 1,

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'post_parent' => $post_parent,

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'order' => $attr['order'],

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'orderby' => $attr['orderby'],

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'include' => $attr['include'],

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'exclude' => $attr['exclude'],

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'suppress_filters' => false,

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)

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);

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if ( ! is_countable( $attachments ) || count( $attachments ) < 1 ) {

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return false;

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}

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$gallery_instance = sprintf( 'gallery-%d-%d', $attr['id'], ++$this->instance_count );

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$gallery = array();

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foreach ( $attachments as $attachment ) {

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$attachment_image_src = wp_get_attachment_image_src( $attachment->ID, $attr['size'] );

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$attachment_image_src = false !== $attachment_image_src ? $attachment_image_src[0] : ''; // [url, width, height].

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$attachment_image_title = get_the_title( $attachment->ID );

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$attachment_image_alt = get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true );

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/**

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* Filters the Slideshow slide caption.

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*

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* @module shortcodes

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*

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* @since 2.3.0

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*

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* @param string wptexturize( strip_tags( $attachment->post_excerpt ) ) Post excerpt.

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* @param string $attachment ->ID Attachment ID.

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*/

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$caption = apply_filters( 'jetpack_slideshow_slide_caption', wptexturize( wp_strip_all_tags( $attachment->post_excerpt ) ), $attachment->ID );

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$gallery[] = (object) array(

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'src' => (string) esc_url_raw( $attachment_image_src ),

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'id' => (string) $attachment->ID,

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'title' => (string) esc_attr( $attachment_image_title ),

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'alt' => (string) esc_attr( $attachment_image_alt ),

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'caption' => (string) $caption,

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'itemprop' => 'image',

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);

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}

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$color = Jetpack_Options::get_option( 'slideshow_background_color', 'black' );

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$autostart = $attr['autostart'] ? $attr['autostart'] : 'true';

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$js_attr = array(

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'gallery' => $gallery,

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'selector' => $gallery_instance,

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'trans' => $attr['trans'] ? $attr['trans'] : 'fade',

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'autostart' => $autostart,

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'color' => $color,

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);

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// Show a link to the gallery in feeds.

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if ( is_feed() ) {

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return sprintf(

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'<a href="%s">%s</a>',

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esc_url( get_permalink( $post_id ) . '#' . $gallery_instance . '-slideshow' ),

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esc_html__( 'Click to view slideshow.', 'jetpack' )

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);

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}

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if (

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class_exists( 'Jetpack_AMP_Support' )

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&& Jetpack_AMP_Support::is_amp_request()

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) {

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// Load the styles and use the rendering method from the Slideshow block.

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Jetpack_Gutenberg::load_styles_as_required( 'slideshow' );

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$amp_args = array(

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'ids' => wp_list_pluck( $gallery, 'id' ),

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);

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if ( 'true' == $autostart ) { // phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual -- attribute can be stored as boolean or string.

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$amp_args['autoplay'] = true;

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}

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/*

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* Blocks can be disabled in Jetpack Settings.

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* If that's the case, we need to include the slideshow block manually.

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*/

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if ( ! class_exists( 'Automattic\Jetpack\Extensions\Slideshow' ) ) {

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require_once JETPACK__PLUGIN_DIR . 'extensions/blocks/slideshow/slideshow.php';

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}

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return Slideshow\render_amp( $amp_args );

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}

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return $this->slideshow_js( $js_attr );

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}

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/**

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* Render the slideshow js

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*

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* Returns the necessary markup and js to fire a slideshow.

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*

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* @param array $attr Attributes for the slideshow.

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*

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* @uses $this->enqueue_scripts()

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*

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* @return string HTML output.

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*/

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public function slideshow_js( $attr ) {

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// Enqueue scripts.

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$this->enqueue_scripts();

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$output = '<p class="jetpack-slideshow-noscript robots-nocontent">' . esc_html__( 'This slideshow requires JavaScript.', 'jetpack' ) . '</p>';

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/*

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* Checking for JSON_HEX_AMP and friends here allows us to get rid of

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* '&quot;', that can sometimes be included in the JSON input in some languages like French.

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*/

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$gallery_attributes = _wp_specialchars(

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wp_check_invalid_utf8(

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wp_json_encode( $attr['gallery'], JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT )

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),

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ENT_QUOTES,

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false,

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true

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);

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$output .= sprintf(

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'<div id="%s" class="jetpack-slideshow-window jetpack-slideshow jetpack-slideshow-%s" data-trans="%s" data-autostart="%s" data-gallery="%s" itemscope itemtype="https://schema.org/ImageGallery"></div>',

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esc_attr( $attr['selector'] . '-slideshow' ),

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esc_attr( $attr['color'] ),

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esc_attr( $attr['trans'] ),

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esc_attr( $attr['autostart'] ),

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$gallery_attributes

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);

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return $output;

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}

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/**

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* Actually enqueues the scripts and styles.

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*/

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public function enqueue_scripts() {

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wp_register_script(

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'jetpack-shortcode-deps',

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plugins_url( '_inc/build/shortcodes/js/dependencies.min.js', JETPACK__PLUGIN_FILE ),

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array( 'jquery' ),

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'20250806',

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true

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);

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wp_enqueue_script(

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'jetpack-slideshow',

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Assets::get_file_url_for_environment( '_inc/build/shortcodes/js/slideshow-shortcode.min.js', 'modules/shortcodes/js/slideshow-shortcode.js' ),

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array( 'jquery', 'jetpack-shortcode-deps' ),

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'20160119.1',

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true

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);

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wp_enqueue_style(

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'jetpack-slideshow',

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plugins_url( '/css/slideshow-shortcode.css', __FILE__ ),

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array(),

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JETPACK__VERSION

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);

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wp_style_add_data( 'jetpack-slideshow', 'rtl', 'replace' );

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wp_localize_script(

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'jetpack-slideshow',

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'jetpackSlideshowSettings',

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/**

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* Filters the slideshow JavaScript spinner.

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*

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* @module shortcodes

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*

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* @since 2.1.0

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* @since 4.7.0 Added the `speed` option to the array of options.

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*

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* @param array $args

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* - string - spinner - URL of the spinner image.

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* - string - speed - Speed of the slideshow. Defaults to 4000.

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* - string - label_prev - Aria label for slideshow's previous button

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* - string - label_stop - Aria label for slideshow's pause button

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* - string - label_next - Aria label for slideshow's next button

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*/

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apply_filters(

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'jetpack_js_slideshow_settings',

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array(

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'spinner' => plugins_url( '/img/slideshow-loader.gif', __FILE__ ),

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'speed' => '4000',

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'label_prev' => __( 'Previous Slide', 'jetpack' ),

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'label_stop' => __( 'Pause Slideshow', 'jetpack' ),

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'label_next' => __( 'Next Slide', 'jetpack' ),

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)

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)

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);

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}

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/**

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* Instantiate shortcode.

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*/

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public static function init() {

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new Jetpack_Slideshow_Shortcode();

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}

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}

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Jetpack_Slideshow_Shortcode::init();

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