1 <?php

     2 /**

     3  * Customize API: WP_Customize_Header_Image_Setting class

     4  *

     5  * @package WordPress

     6  * @subpackage Customize

     7  * @since 4.4.0

     8  */

     9 

    10 /**

    11  * A setting that is used to filter a value, but will not save the results.

    12  *

    13  * Results should be properly handled using another setting or callback.

    14  *

    15  * @since 3.4.0

    16  *

    17  * @see WP_Customize_Setting

    18  */

    19 final class WP_Customize_Header_Image_Setting extends WP_Customize_Setting {

    20 	public $id = 'header_image_data';

    21 

    22 	/**

    23 	 * @since 3.4.0

    24 	 *

    25 	 * @global Custom_Image_Header $custom_image_header

    26 	 *

    27 	 * @param $value

    28 	 */

    29 	public function update( $value ) {

    30 		global $custom_image_header;

    31 

    32 		// If _custom_header_background_just_in_time() fails to initialize $custom_image_header when not is_admin().

    33 		if ( empty( $custom_image_header ) ) {

    34 			require_once( ABSPATH . 'wp-admin/custom-header.php' );

    35 			$args = get_theme_support( 'custom-header' );

    36 			$admin_head_callback = isset( $args[0]['admin-head-callback'] ) ? $args[0]['admin-head-callback'] : null;

    37 			$admin_preview_callback = isset( $args[0]['admin-preview-callback'] ) ? $args[0]['admin-preview-callback'] : null;

    38 			$custom_image_header = new Custom_Image_Header( $admin_head_callback, $admin_preview_callback );

    39 		}

    40 

    41 		// If the value doesn't exist (removed or random),

    42 		// use the header_image value.

    43 		if ( ! $value )

    44 			$value = $this->manager->get_setting('header_image')->post_value();

    45 

    46 		if ( is_array( $value ) && isset( $value['choice'] ) )

    47 			$custom_image_header->set_header_image( $value['choice'] );

    48 		else

    49 			$custom_image_header->set_header_image( $value );

    50 	}

    51 }