<?php

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/**

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* Adding extra functions for the gallery.

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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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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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/**

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* Renders extra controls in the Gallery Settings section of the new media UI.

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*

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

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*/

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class Jetpack_Gallery_Settings {

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/**

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* Available gallery types.

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*

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* @var array

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*/

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public $gallery_types;

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/**

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* The constructor.

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*/

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public function __construct() {

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add_action( 'admin_init', array( $this, 'admin_init' ) );

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}

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/**

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* Initialize the admin resources.

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*/

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public function admin_init() {

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/**

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* Filter the available gallery types.

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*

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* @module shortcodes, tiled-gallery

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*

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* @since 2.5.1

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*

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* @param array $value Array of the default thumbnail grid gallery type. Default array contains one key, ‘default’.

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*/

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$this->gallery_types = apply_filters( 'jetpack_gallery_types', array( 'default' => __( 'Thumbnail Grid', 'jetpack' ) ) );

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// Enqueue the media UI only if needed.

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if ( is_countable( $this->gallery_types ) && count( $this->gallery_types ) > 1 ) {

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add_action( 'wp_enqueue_media', array( $this, 'wp_enqueue_media' ) );

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add_action( 'print_media_templates', array( $this, 'print_media_templates' ) );

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}

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// Add Slideshow and Galleries functionality to core's media gallery widget.

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add_filter( 'widget_media_gallery_instance_schema', array( $this, 'core_media_widget_compat' ) );

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}

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/**

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* Updates the schema of the core gallery widget so we can save the

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* fields that we add to Gallery Widgets, like `type` and `conditions`

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*

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* @param array $schema The current schema for the core gallery widget.

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* @return array the updated schema

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*/

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public function core_media_widget_compat( $schema ) {

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$schema['type'] = array(

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'type' => 'string',

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'enum' => array_keys( $this->gallery_types ),

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'description' => __( 'Type of gallery.', 'jetpack' ),

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'default' => 'default',

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);

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return $schema;

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}

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/**

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* Registers/enqueues the gallery settings admin js.

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*/

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public function wp_enqueue_media() {

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if ( ! wp_script_is( 'jetpack-gallery-settings', 'registered' ) ) {

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/**

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* This only happens if we're not in Jetpack, but on WPCOM instead.

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* This is the correct path for WPCOM.

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*/

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wp_register_script(

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'jetpack-gallery-settings',

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Assets::get_file_url_for_environment( '_inc/build/gallery-settings.min.js', '_inc/gallery-settings.js' ),

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array( 'jquery', 'media-views' ),

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'20121225',

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false

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);

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}

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wp_enqueue_script( 'jetpack-gallery-settings' );

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}

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/**

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* Outputs a view template which can be used with wp.media.template

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*/

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public function print_media_templates() {

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/**

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* Filter the default gallery type.

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*

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* @module tiled-gallery

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*

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* @since 2.5.1

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*

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* @param string $value A string of the gallery type. Default is ‘default’.

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*/

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$default_gallery_type = apply_filters( 'jetpack_default_gallery_type', 'default' );

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?>

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<script type="text/html" id="tmpl-jetpack-gallery-settings">

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<label class="setting">

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<span><?php esc_html_e( 'Type', 'jetpack' ); ?></span>

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<select class="type" name="type" data-setting="type">

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<?php foreach ( $this->gallery_types as $value => $caption ) : ?>

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<option value="<?php echo esc_attr( $value ); ?>" <?php selected( $value, $default_gallery_type ); ?>><?php echo esc_html( $caption ); ?></option>

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<?php endforeach; ?>

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</select>

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</label>

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</script>

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<?php

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}

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}

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new Jetpack_Gallery_Settings();

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