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<title>[33001] trunk/src/wp-admin/includes: Use existing nomenclature pattern for Site Icon class.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/33001">33001</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/33001","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>obenland</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2015-06-30 14:36:09 +0000 (Tue, 30 Jun 2015)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Use existing nomenclature pattern for Site Icon class.

Props kraftbj.
Fixes <a href="https://core.trac.wordpress.org/ticket/32834">#32834</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadminincludesadminphp">trunk/src/wp-admin/includes/admin.php</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunksrcwpadminincludesclasswpsiteiconphp">trunk/src/wp-admin/includes/class-wp-site-icon.php</a></li>
</ul>

<h3>Removed Paths</h3>
<ul>
<li><a href="#trunksrcwpadminincludessiteiconphp">trunk/src/wp-admin/includes/site-icon.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadminincludesadminphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/admin.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/admin.php     2015-06-30 04:34:15 UTC (rev 33000)
+++ trunk/src/wp-admin/includes/admin.php       2015-06-30 14:36:09 UTC (rev 33001)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -65,7 +65,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> require_once(ABSPATH . 'wp-admin/includes/user.php');
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /** WordPress Site Icon API */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-require_once(ABSPATH . 'wp-admin/includes/site-icon.php');
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+require_once(ABSPATH . 'wp-admin/includes/class-wp-site-icon.php');
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /** WordPress Update Administration API */
</span><span class="cx" style="display: block; padding: 0 10px"> require_once(ABSPATH . 'wp-admin/includes/update.php');
</span></span></pre></div>
<a id="trunksrcwpadminincludesclasswpsiteiconphpfromrev33000trunksrcwpadminincludessiteiconphp"></a>
<div class="copfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Copied: trunk/src/wp-admin/includes/class-wp-site-icon.php (from rev 33000, trunk/src/wp-admin/includes/site-icon.php)</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/class-wp-site-icon.php                                (rev 0)
+++ trunk/src/wp-admin/includes/class-wp-site-icon.php  2015-06-30 14:36:09 UTC (rev 33001)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,639 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+
+/**
+ * Class WP_Site_Icon.
+ *
+ * @since 4.3.0
+ */
+class WP_Site_Icon {
+
+       /**
+        * The minimum size of the site icon.
+        *
+        * @since 4.3.0
+        *
+        * @var int
+        */
+       public $min_size  = 512;
+
+       /**
+        * The size to which to crop the image so that we can display it in the UI nicely.
+        *
+        * @since 4.3.0
+        *
+        * @var int
+        */
+       public $page_crop = 512;
+
+       /**
+        *
+        * @since 4.3.0
+        *
+        * @var array
+        */
+       public $site_icon_sizes = array(
+               /**
+                * Square, medium sized tiles for IE11+.
+                *
+                * @link https://msdn.microsoft.com/library/dn455106(v=vs.85).aspx
+                */
+               270,
+
+               /**
+                * App icons up to iPhone 6 Plus.
+                *
+                * @link https://developer.apple.com/library/prerelease/ios/documentation/UserExperience/Conceptual/MobileHIG/IconMatrix.html
+                */
+               180,
+
+               // Our regular Favicon.
+               32,
+       );
+
+       /**
+        * Register our actions and filters.
+        *
+        * @since 4.3.0
+        */
+       public function __construct() {
+
+               // Add the favicon to the backend.
+               add_action( 'admin_head', 'wp_site_icon' );
+
+               add_action( 'admin_menu', array( $this, 'admin_menu_upload_site_icon' ) );
+
+               add_action( 'admin_action_set_site_icon',    array( $this, 'set_site_icon'    ) );
+               add_action( 'admin_action_remove_site_icon', array( $this, 'remove_site_icon' ) );
+
+               add_action( 'delete_attachment', array( $this, 'delete_attachment_data' ), 10, 1 );
+               add_filter( 'get_post_metadata', array( $this, 'get_post_metadata' ), 10, 4 );
+       }
+
+       /**
+        * Add a hidden upload page.
+        *
+        * There is no need to access it directly.
+        *
+        * @since 4.3.0
+        */
+       public function admin_menu_upload_site_icon() {
+               $hook = add_submenu_page( null, __( 'Site Icon' ), __( 'Site Icon' ), 'manage_options', 'site-icon', array( $this, 'upload_site_icon_page' ) );
+
+               add_action( "load-$hook", array( $this, 'add_upload_settings' ) );
+               add_action( "admin_print_scripts-$hook", array( $this, 'enqueue_scripts' ) );
+       }
+
+       /**
+        * Add scripts to admin settings pages.
+        *
+        * @since 4.3.0
+        */
+       public function enqueue_scripts() {
+               wp_enqueue_style( 'jcrop' );
+               wp_enqueue_script( 'site-icon-crop' );
+       }
+
+       /**
+        * Load on when the admin is initialized.
+        *
+        * @since 4.3.0
+        */
+       public function add_upload_settings() {
+               add_settings_section( 'site-icon-upload', false, false, 'site-icon-upload' );
+               add_settings_field( 'site-icon-upload', __( 'Upload Image' ), array( $this, 'upload_field' ), 'site-icon-upload', 'site-icon-upload', array(
+                       'label_for' => 'site-icon-upload',
+               ) );
+       }
+
+       /**
+        * Removes site icon.
+        *
+        * @since 4.3.0
+        */
+       public function remove_site_icon() {
+               check_admin_referer( 'remove-site-icon' );
+
+               $this->delete_site_icon();
+
+               add_settings_error( 'site-icon', 'icon-removed', __( 'Site Icon removed.' ), 'updated' );
+       }
+
+       /**
+        * Uploading a site_icon is a 3 step process
+        *
+        * 1. Select the file to upload
+        * 2. Crop the file
+        * 3. Confirmation
+        *
+        * @since 4.3.0
+        */
+       public function upload_site_icon_page() {
+               $action = isset( $_REQUEST['action'] ) ? $_REQUEST['action'] : 'select_site_icon';
+
+               switch ( $action ) {
+                       case 'select_site_icon':
+                               $this->select_page();
+                               break;
+
+                       case 'crop_site_icon':
+                               $this->crop_page();
+                               break;
+
+                       default:
+                               wp_safe_redirect( admin_url( 'options-general.php#site-icon' ) );
+                               exit;
+               }
+       }
+
+       /**
+        * Displays the site_icon form to upload the image.
+        *
+        * @since 4.3.0
+        */
+       public function select_page() {
+               ?>
+               <div class="wrap">
+                       <h2><?php _e( 'Add Site Icon' ); ?></h2>
+                       <?php settings_errors( 'site-icon' ); ?>
+                       <?php do_settings_sections( 'site-icon-upload' ); ?>
+               </div>
+       <?php
+       }
+
+       /**
+        * Settings field for file upload.
+        *
+        * @since 4.3.0
+        */
+       public function upload_field() {
+               wp_enqueue_media();
+               wp_enqueue_script( 'site-icon' );
+               wp_dequeue_script( 'site-icon-crop' );
+
+               $update_url = esc_url( add_query_arg( array(
+                       'page' => 'site-icon',
+                       'action' => 'crop_site_icon',
+               ), wp_nonce_url( admin_url( 'options-general.php' ), 'crop-site-icon' ) ) );
+               ?>
+               <p class="hide-if-no-js">
+                       <label class="screen-reader-text" for="choose-from-library-link"><?php _e( 'Choose an image from your media library:' ); ?></label>
+                       <button type="button" id="choose-from-library-link" class="button" data-update-link="<?php echo esc_attr( $update_url ); ?>" data-choose="<?php esc_attr_e( 'Choose a Site Icon' ); ?>" data-update="<?php esc_attr_e( 'Set as Site Icon' ); ?>"><?php _e( 'Choose Image' ); ?></button>
+               </p>
+               <form class="hide-if-js" action="<?php echo esc_url( admin_url( 'options-general.php?page=site-icon' ) ); ?>" method="post" enctype="multipart/form-data">
+                       <input name="action" value="crop_site_icon" type="hidden" />
+                       <input name="site-icon" type="file" />
+                       <input name="submit" value="<?php esc_attr_e( 'Upload Image' ); ?>" type="submit" class="button button-primary" />
+                       <p class="description">
+                               <?php printf( __( 'The image is recommended to be a square image of at least %spx in both width and height.' ), "<strong>$this->min_size</strong>" ); ?>
+                       </p>
+                       <?php wp_nonce_field( 'crop-site-icon' ); ?>
+               </form>
+       <?php
+       }
+
+       /**
+        * Crop a the image admin view.
+        *
+        * @since 4.3.0
+        */
+       public function crop_page() {
+               check_admin_referer( 'crop-site-icon' );
+
+               if ( isset( $_GET['file'] ) ) {
+                       $attachment_id = absint( $_GET['file'] );
+                       $file          = get_attached_file( $attachment_id, true );
+                       $url           = wp_get_attachment_image_src( $attachment_id, 'full' );
+                       $url           = $url[0];
+               } else {
+                       $upload        = $this->handle_upload();
+                       $attachment_id = $upload['attachment_id'];
+                       $file          = $upload['file'];
+                       $url           = $upload['url'];
+               }
+
+               $image_size = getimagesize( $file );
+
+               if ( $image_size[0] < $this->min_size ) {
+                       add_settings_error( 'site-icon', 'too-small', sprintf( __( 'The selected image is smaller than %upx in width.' ), $this->min_size ) );
+
+                       // back to step one
+                       $this->select_page();
+
+                       return;
+               }
+
+               if ( $image_size[1] < $this->min_size ) {
+                       add_settings_error( 'site-icon', 'too-small', sprintf( __( 'The selected image is smaller than %upx in height.' ), $this->min_size ) );
+
+                       // Back to step one.
+                       $this->select_page();
+
+                       return;
+               }
+
+               // Let's resize the image so that the user can easier crop a image that in the admin view.
+               $crop_height = absint( $this->page_crop * $image_size[1] / $image_size[0] );
+               $cropped = wp_crop_image( $attachment_id, 0, 0, 0, 0, $this->page_crop, $crop_height );
+               if ( ! $cropped || is_wp_error( $cropped ) ) {
+                       wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
+               }
+               $cropped_size = getimagesize( $cropped );
+
+               // set default values (in case of no JS)
+               $crop_ratio = $image_size[0] / $cropped_size[0];
+               if ( $cropped_size[0] < $cropped_size[1] ) {
+                       $crop_x    = 0;
+                       $crop_y    = absint( ( $cropped_size[1] - $cropped_size[0] ) / 2 );
+                       $crop_size = $cropped_size[0];
+               } elseif ( $cropped_size[0] > $cropped_size[1] ) {
+                       $crop_x    = absint( ( $cropped_size[0] - $cropped_size[1] ) / 2 );
+                       $crop_y    = 0;
+                       $crop_size = $cropped_size[1];
+               } else {
+                       $crop_x    = 0;
+                       $crop_y    = 0;
+                       $crop_size = $cropped_size[0];
+               }
+
+               wp_delete_file( $cropped );
+
+               wp_localize_script( 'site-icon-crop', 'wpSiteIconCropData', $this->initial_crop_data( $crop_ratio, $cropped_size ) );
+               ?>
+
+               <div class="wrap">
+                       <h2 class="site-icon-title"><?php _e( 'Site Icon' ); ?></h2>
+                       <?php settings_errors( 'site-icon' ); ?>
+
+                       <div class="site-icon-crop-shell">
+                               <form action="options-general.php" method="post" enctype="multipart/form-data">
+                                       <p class="hide-if-no-js description"><?php _e('Choose the part of the image you want to use as your site icon.'); ?></p>
+                                       <p class="hide-if-js description"><strong><?php _e( 'You need Javascript to choose a part of the image.'); ?></strong></p>
+
+                                       <div class="site-icon-crop-preview-shell hide-if-no-js">
+                                               <h3><?php _e( 'Preview' ); ?></h3>
+                                               <strong><?php _e( 'As your favicon' ); ?></strong>
+                                               <div class="site-icon-crop-favicon-preview-shell">
+                                                       <img src="images/browser.png" class="site-icon-browser-preview" width="182" height="" alt="<?php esc_attr_e( 'Browser Chrome' ); ?>"/>
+
+                                                       <div class="site-icon-crop-preview-favicon">
+                                                               <img src="<?php echo esc_url( $url ); ?>" id="preview-favicon" alt="<?php esc_attr_e( 'Preview Favicon' ); ?>"/>
+                                                       </div>
+                                                       <span class="site-icon-browser-title"><?php bloginfo( 'name' ); ?></span>
+                                               </div>
+
+                                               <strong><?php _e( 'As a mobile icon' ); ?></strong>
+                                               <div class="site-icon-crop-preview-homeicon">
+                                                       <img src="<?php echo esc_url( $url ); ?>" id="preview-homeicon" alt="<?php esc_attr_e( 'Preview Home Icon' ); ?>"/>
+                                               </div>
+                                       </div>
+                                       <img src="<?php echo esc_url( $url ); ?>" id="crop-image" class="site-icon-crop-image" width="<?php echo esc_attr( $cropped_size[0] ); ?>" height="<?php echo esc_attr( $cropped_size[1] ); ?>" alt="<?php esc_attr_e( 'Image to be cropped' ); ?>"/>
+
+                                       <input type="hidden" id="crop-x" name="crop-x" value="<?php echo esc_attr( $crop_x ); ?>" />
+                                       <input type="hidden" id="crop-y" name="crop-y" value="<?php echo esc_attr( $crop_y ); ?>" />
+                                       <input type="hidden" id="crop-width" name="crop-w" value="<?php echo esc_attr( $crop_size ); ?>" />
+                                       <input type="hidden" id="crop-height" name="crop-h" value="<?php echo esc_attr( $crop_size ); ?>" />
+
+                                       <input type="hidden" name="action" value="set_site_icon" />
+                                       <input type="hidden" name="attachment_id" value="<?php echo esc_attr( $attachment_id ); ?>" />
+                                       <input type="hidden" name="crop_ratio" value="<?php echo esc_attr( $crop_ratio ); ?>" />
+                                       <?php if ( empty( $_POST ) && isset( $_GET['file'] ) ) : ?>
+                                               <input type="hidden" name="create-new-attachment" value="true" />
+                                       <?php endif; ?>
+                                       <?php wp_nonce_field( 'set-site-icon' ); ?>
+
+                                       <p class="submit">
+                                               <?php submit_button( __( 'Crop and Publish' ), 'primary hide-if-no-js', 'submit', false ); ?>
+                                               <?php submit_button( __( 'Publish' ), 'primary hide-if-js', 'submit', false ); ?>
+                                               <a class="button secondary" href="options-general.php"><?php _e( 'Cancel' ); ?></a>
+                                       </p>
+                               </form>
+                       </div>
+               </div>
+       <?php
+       }
+
+       /**
+        * Saves a new Site Icon.
+        *
+        * @since 4.3.0
+        */
+       public function set_site_icon() {
+               check_admin_referer( 'set-site-icon' );
+
+               // Delete any existing site icon images.
+               $this->delete_site_icon();
+
+               $attachment_id = absint( $_POST['attachment_id'] );
+
+               // TODO
+               if ( empty( $_POST['skip-cropping'] ) ) {
+                       $crop_ratio = (float) $_POST['crop_ratio'];
+                       $crop_data = $this->convert_coordinates_from_resized_to_full( $_POST['crop-x'], $_POST['crop-y'], $_POST['crop-w'], $_POST['crop-h'], $crop_ratio );
+                       $cropped = wp_crop_image( $attachment_id, $crop_data['crop_x'], $crop_data['crop_y'], $crop_data['crop_width'], $crop_data['crop_height'], $this->min_size, $this->min_size );
+               } elseif ( ! empty( $_POST['create-new-attachment'] ) ) {
+                       $cropped = _copy_image_file( $attachment_id );
+               } else {
+                       $cropped = get_attached_file( $attachment_id );
+               }
+
+               if ( ! $cropped || is_wp_error( $cropped ) ) {
+                       wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
+               }
+
+               $object = $this->create_attachment_object( $cropped, $attachment_id );
+
+               if ( ! empty( $_POST['create-new-attachment'] ) ) {
+                       unset( $object['ID'] );
+               }
+
+               // Update the attachment
+               add_filter( 'intermediate_image_sizes_advanced', array( $this, 'additional_sizes' ) );
+               $attachment_id = $this->insert_attachment( $object, $cropped );
+               remove_filter( 'intermediate_image_sizes_advanced', array( $this, 'additional_sizes' ) );
+
+               // Save the site_icon data into option
+               update_option( 'site_icon', $attachment_id );
+
+               add_settings_error( 'site-icon', 'icon-updated', __( 'Site Icon updated.' ), 'updated' );
+       }
+
+       /**
+        * This function is used to pass data to the localize script
+        * so that we can center the cropper and also set the minimum
+        * cropper.
+        *
+        * @since 4.3.0
+        *
+        * @param float $ratio
+        * @param array $cropped_size
+        * @return array
+        */
+       public function initial_crop_data( $ratio, $cropped_size ) {
+               $init_x = $init_y = $init_size = 0;
+
+               $min_crop_size  = ( $this->min_size / $ratio );
+               $resized_width  = $cropped_size[0];
+               $resized_height = $cropped_size[1];
+
+               // Landscape format ( width > height )
+               if ( $resized_width > $resized_height ) {
+                       $init_x    = ( $this->page_crop - $resized_height ) / 2;
+                       $init_size = $resized_height;
+               }
+
+               // Portrait format ( height > width )
+               if ( $resized_width < $resized_height ) {
+                       $init_y    = ( $this->page_crop - $resized_width ) / 2;
+                       $init_size = $resized_height;
+               }
+
+               // Square height == width
+               if ( $resized_width == $resized_height ) {
+                       $init_size = $resized_height;
+               }
+
+               return array(
+                       'init_x'    => $init_x,
+                       'init_y'    => $init_y,
+                       'init_size' => $init_size,
+                       'min_size'  => $min_crop_size,
+               );
+       }
+
+       /**
+        * Converts the coordinates from the downsized image to the original image for accurate cropping.
+        *
+        * @since 4.3.0
+        *
+        * @param int   $crop_x
+        * @param int   $crop_y
+        * @param int   $crop_width
+        * @param int   $crop_height
+        * @param float $ratio
+        * @return array
+        */
+       public function convert_coordinates_from_resized_to_full( $crop_x, $crop_y, $crop_width, $crop_height, $ratio ) {
+               return array(
+                       'crop_x'      => floor( $crop_x * $ratio ),
+                       'crop_y'      => floor( $crop_y * $ratio ),
+                       'crop_width'  => floor( $crop_width * $ratio ),
+                       'crop_height' => floor( $crop_height * $ratio ),
+               );
+       }
+
+       /**
+        * Upload the file to be cropped in the second step.
+        *
+        * @since 4.3.0
+        */
+       public function handle_upload() {
+               $uploaded_file = $_FILES['site-icon'];
+               $file_type     = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'] );
+               if ( ! wp_match_mime_types( 'image', $file_type['type'] ) ) {
+                       wp_die( __( 'The uploaded file is not a valid image. Please try again.' ) );
+               }
+
+               $file = wp_handle_upload( $uploaded_file, array( 'test_form' => false ) );
+
+               if ( isset( $file['error'] ) ) {
+                       wp_die( $file['error'], __( 'Image Upload Error' ) );
+               }
+
+               $url      = $file['url'];
+               $type     = $file['type'];
+               $file     = $file['file'];
+               $filename = basename( $file );
+
+               // Construct the object array
+               $object = array(
+                       'post_title'     => $filename,
+                       'post_content'   => $url,
+                       'post_mime_type' => $type,
+                       'guid'           => $url,
+                       'context'        => 'site-icon',
+               );
+
+               // Save the data
+               $attachment_id = wp_insert_attachment( $object, $file );
+
+               return compact( 'attachment_id', 'file', 'filename', 'url', 'type' );
+       }
+
+       /**
+        * Create an attachment 'object'.
+        *
+        * @since 4.3.0
+        *
+        * @param string $cropped              Cropped image URL.
+        * @param int    $parent_attachment_id Attachment ID of parent image.
+        * @return array Attachment object.
+        */
+       public function create_attachment_object( $cropped, $parent_attachment_id ) {
+               $parent     = get_post( $parent_attachment_id );
+               $parent_url = $parent->guid;
+               $url        = str_replace( basename( $parent_url ), basename( $cropped ), $parent_url );
+
+               $size       = @getimagesize( $cropped );
+               $image_type = ( $size ) ? $size['mime'] : 'image/jpeg';
+
+               $object = array(
+                       'ID'             => $parent_attachment_id,
+                       'post_title'     => basename( $cropped ),
+                       'post_content'   => $url,
+                       'post_mime_type' => $image_type,
+                       'guid'           => $url,
+                       'context'        => 'site-icon'
+               );
+
+               return $object;
+       }
+
+       /**
+        * Insert an attachment and its metadata.
+        *
+        * @since 4.3.0
+        *
+        * @param array  $object  Attachment object.
+        * @param string $cropped Cropped image URL.
+        * @return int Attachment ID.
+        */
+       public function insert_attachment( $object, $cropped ) {
+               $attachment_id = wp_insert_attachment( $object, $cropped );
+               $metadata      = wp_generate_attachment_metadata( $attachment_id, $cropped );
+
+               /**
+                * Filter the site icon attachment metadata.
+                *
+                * @since 4.3.0
+                *
+                * @see wp_generate_attachment_metadata()
+                *
+                * @param array $metadata Attachment metadata.
+                */
+               $metadata = apply_filters( 'site_icon_attachment_metadata', $metadata );
+               wp_update_attachment_metadata( $attachment_id, $metadata );
+
+               return $attachment_id;
+       }
+
+       /**
+        * Add additional sizes to be made when creating the site_icon images.
+        *
+        * @since 4.3.0
+        *
+        * @param array $sizes
+        * @return array
+        */
+       public function additional_sizes( $sizes = array() ) {
+               $only_crop_sizes = array();
+
+               /**
+                * Filter the different dimensions that a site icon is saved in.
+                *
+                * @since 4.3.0
+                *
+                * @param array $site_icon_sizes Sizes available for the Site Icon.
+                */
+               $this->site_icon_sizes = apply_filters( 'site_icon_image_sizes', $this->site_icon_sizes );
+
+               // Use a natural sort of numbers.
+               natsort( $this->site_icon_sizes );
+               $this->site_icon_sizes = array_reverse( $this->site_icon_sizes );
+
+               // ensure that we only resize the image into
+               foreach ( $sizes as $name => $size_array ) {
+                       if ( $size_array['crop'] ) {
+                               $only_crop_sizes[ $name ] = $size_array;
+                       }
+               }
+
+               foreach ( $this->site_icon_sizes as $size ) {
+                       if ( $size < $this->min_size ) {
+                               $only_crop_sizes[ 'site_icon-' . $size ] = array(
+                                       'width ' => $size,
+                                       'height' => $size,
+                                       'crop'   => true,
+                               );
+                       }
+               }
+
+               return $only_crop_sizes;
+       }
+
+       /**
+        * Add Site Icon sizes to the array of image sizes on demand.
+        *
+        * @since 4.3.0
+        *
+        * @param array $sizes
+        * @return array
+        */
+       public function intermediate_image_sizes( $sizes = array() ) {
+               /** This filter is documented in wp-admin/includes/site-icon.php */
+               $this->site_icon_sizes = apply_filters( 'site_icon_image_sizes', $this->site_icon_sizes );
+               foreach ( $this->site_icon_sizes as $size ) {
+                       $sizes[] = 'site_icon-' . $size;
+               }
+
+               return $sizes;
+       }
+
+       /**
+        * Deletes all additional image sizes, used for site icons.
+        *
+        * @since 4.3.0
+        *
+        * @return bool
+        */
+       public function delete_site_icon() {
+               // We add the filter to make sure that we also delete all the added images.
+               add_filter( 'intermediate_image_sizes', array( $this, 'intermediate_image_sizes' ) );
+               wp_delete_attachment( get_option( 'site_icon' ), true );
+               remove_filter( 'intermediate_image_sizes', array( $this, 'intermediate_image_sizes' ) );
+
+               return delete_option( 'site_icon' );
+       }
+
+       /**
+        * Deletes the Site Icon when the image file is deleted.
+        *
+        * @since 4.3.0
+        *
+        * @param int $post_id Attachment ID.
+        */
+       public function delete_attachment_data( $post_id ) {
+               $site_icon_id = get_option( 'site_icon' );
+
+               if ( $site_icon_id && $post_id == $site_icon_id ) {
+                       delete_option( 'site_icon' );
+               }
+       }
+
+       /**
+        * Adds custom image sizes when meta data for an image is requested, that happens to be used as Site Icon.
+        *
+        * @since 4.3.0
+        *
+        * @param null|array|string $value    The value get_metadata() should
+        *                                    return - a single metadata value,
+        *                                    or an array of values.
+        * @param int               $post_id  Post ID.
+        * @param string            $meta_key Meta key.
+        * @param string|array      $single   Meta value, or an array of values.
+        * @return array|null|string
+        */
+       public function get_post_metadata( $value, $post_id, $meta_key, $single ) {
+               $site_icon_id = get_option( 'site_icon' );
+
+               if ( $post_id == $site_icon_id && '_wp_attachment_backup_sizes' == $meta_key && $single ) {
+                       add_filter( 'intermediate_image_sizes', array( $this, 'intermediate_image_sizes' ) );
+               }
+
+               return $value;
+       }
+}
+
+/**
+ * @global WP_Site_Icon $wp_site_icon
+ */
+$GLOBALS['wp_site_icon'] = new WP_Site_Icon;
</ins></span></pre></div>
<a id="trunksrcwpadminincludessiteiconphp"></a>
<div class="delfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Deleted: trunk/src/wp-admin/includes/site-icon.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/site-icon.php 2015-06-30 04:34:15 UTC (rev 33000)
+++ trunk/src/wp-admin/includes/site-icon.php   2015-06-30 14:36:09 UTC (rev 33001)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1,636 +0,0 @@
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-<?php
-
-/**
- * Class WP_Site_Icon.
- *
- * @since 4.3.0
- */
-class WP_Site_Icon {
-
-       /**
-        * The minimum size of the site icon.
-        *
-        * @since 4.3.0
-        *
-        * @var int
-        */
-       public $min_size  = 512;
-
-       /**
-        * The size to which to crop the image so that we can display it in the UI nicely.
-        *
-        * @since 4.3.0
-        *
-        * @var int
-        */
-       public $page_crop = 512;
-
-       /**
-        *
-        * @since 4.3.0
-        *
-        * @var array
-        */
-       public $site_icon_sizes = array(
-               /**
-                * Square, medium sized tiles for IE11+.
-                *
-                * @link https://msdn.microsoft.com/library/dn455106(v=vs.85).aspx
-                */
-               270,
-
-               /**
-                * App icons up to iPhone 6 Plus.
-                *
-                * @link https://developer.apple.com/library/prerelease/ios/documentation/UserExperience/Conceptual/MobileHIG/IconMatrix.html
-                */
-               180,
-
-               // Our regular Favicon.
-               32,
-       );
-
-       /**
-        * Register our actions and filters.
-        *
-        * @since 4.3.0
-        */
-       public function __construct() {
-
-               // Add the favicon to the backend.
-               add_action( 'admin_head', 'wp_site_icon' );
-
-               add_action( 'admin_menu', array( $this, 'admin_menu_upload_site_icon' ) );
-
-               add_action( 'admin_action_set_site_icon',    array( $this, 'set_site_icon'    ) );
-               add_action( 'admin_action_remove_site_icon', array( $this, 'remove_site_icon' ) );
-
-               add_action( 'delete_attachment', array( $this, 'delete_attachment_data' ), 10, 1 );
-               add_filter( 'get_post_metadata', array( $this, 'get_post_metadata' ), 10, 4 );
-       }
-
-       /**
-        * Add a hidden upload page.
-        *
-        * There is no need to access it directly.
-        *
-        * @since 4.3.0
-        */
-       public function admin_menu_upload_site_icon() {
-               $hook = add_submenu_page( null, __( 'Site Icon' ), __( 'Site Icon' ), 'manage_options', 'site-icon', array( $this, 'upload_site_icon_page' ) );
-
-               add_action( "load-$hook", array( $this, 'add_upload_settings' ) );
-               add_action( "admin_print_scripts-$hook", array( $this, 'enqueue_scripts' ) );
-       }
-
-       /**
-        * Add scripts to admin settings pages.
-        *
-        * @since 4.3.0
-        */
-       public function enqueue_scripts() {
-               wp_enqueue_style( 'jcrop' );
-               wp_enqueue_script( 'site-icon-crop' );
-       }
-
-       /**
-        * Load on when the admin is initialized.
-        *
-        * @since 4.3.0
-        */
-       public function add_upload_settings() {
-               add_settings_section( 'site-icon-upload', false, false, 'site-icon-upload' );
-               add_settings_field( 'site-icon-upload', __( 'Upload Image' ), array( $this, 'upload_field' ), 'site-icon-upload', 'site-icon-upload', array(
-                       'label_for' => 'site-icon-upload',
-               ) );
-       }
-
-       /**
-        * Removes site icon.
-        *
-        * @since 4.3.0
-        */
-       public function remove_site_icon() {
-               check_admin_referer( 'remove-site-icon' );
-
-               $this->delete_site_icon();
-
-               add_settings_error( 'site-icon', 'icon-removed', __( 'Site Icon removed.' ), 'updated' );
-       }
-
-       /**
-        * Uploading a site_icon is a 3 step process
-        *
-        * 1. Select the file to upload
-        * 2. Crop the file
-        * 3. Confirmation
-        *
-        * @since 4.3.0
-        */
-       public function upload_site_icon_page() {
-               $action = isset( $_REQUEST['action'] ) ? $_REQUEST['action'] : 'select_site_icon';
-
-               switch ( $action ) {
-                       case 'select_site_icon':
-                               $this->select_page();
-                               break;
-
-                       case 'crop_site_icon':
-                               $this->crop_page();
-                               break;
-
-                       default:
-                               wp_safe_redirect( admin_url( 'options-general.php#site-icon' ) );
-                               exit;
-               }
-       }
-
-       /**
-        * Displays the site_icon form to upload the image.
-        *
-        * @since 4.3.0
-        */
-       public function select_page() {
-               ?>
-               <div class="wrap">
-                       <h2><?php _e( 'Add Site Icon' ); ?></h2>
-                       <?php settings_errors( 'site-icon' ); ?>
-                       <?php do_settings_sections( 'site-icon-upload' ); ?>
-               </div>
-       <?php
-       }
-
-       /**
-        * Settings field for file upload.
-        *
-        * @since 4.3.0
-        */
-       public function upload_field() {
-               wp_enqueue_media();
-               wp_enqueue_script( 'site-icon' );
-               wp_dequeue_script( 'site-icon-crop' );
-
-               $update_url = esc_url( add_query_arg( array(
-                       'page' => 'site-icon',
-                       'action' => 'crop_site_icon',
-               ), wp_nonce_url( admin_url( 'options-general.php' ), 'crop-site-icon' ) ) );
-               ?>
-               <p class="hide-if-no-js">
-                       <label class="screen-reader-text" for="choose-from-library-link"><?php _e( 'Choose an image from your media library:' ); ?></label>
-                       <button type="button" id="choose-from-library-link" class="button" data-update-link="<?php echo esc_attr( $update_url ); ?>" data-choose="<?php esc_attr_e( 'Choose a Site Icon' ); ?>" data-update="<?php esc_attr_e( 'Set as Site Icon' ); ?>"><?php _e( 'Choose Image' ); ?></button>
-               </p>
-               <form class="hide-if-js" action="<?php echo esc_url( admin_url( 'options-general.php?page=site-icon' ) ); ?>" method="post" enctype="multipart/form-data">
-                       <input name="action" value="crop_site_icon" type="hidden" />
-                       <input name="site-icon" type="file" />
-                       <input name="submit" value="<?php esc_attr_e( 'Upload Image' ); ?>" type="submit" class="button button-primary" />
-                       <p class="description">
-                               <?php printf( __( 'The image is recommended to be a square image of at least %spx in both width and height.' ), "<strong>$this->min_size</strong>" ); ?>
-                       </p>
-                       <?php wp_nonce_field( 'crop-site-icon' ); ?>
-               </form>
-       <?php
-       }
-
-       /**
-        * Crop a the image admin view.
-        *
-        * @since 4.3.0
-        */
-       public function crop_page() {
-               check_admin_referer( 'crop-site-icon' );
-
-               if ( isset( $_GET['file'] ) ) {
-                       $attachment_id = absint( $_GET['file'] );
-                       $file          = get_attached_file( $attachment_id, true );
-                       $url           = wp_get_attachment_image_src( $attachment_id, 'full' );
-                       $url           = $url[0];
-               } else {
-                       $upload        = $this->handle_upload();
-                       $attachment_id = $upload['attachment_id'];
-                       $file          = $upload['file'];
-                       $url           = $upload['url'];
-               }
-
-               $image_size = getimagesize( $file );
-
-               if ( $image_size[0] < $this->min_size ) {
-                       add_settings_error( 'site-icon', 'too-small', sprintf( __( 'The selected image is smaller than %upx in width.' ), $this->min_size ) );
-
-                       // back to step one
-                       $this->select_page();
-
-                       return;
-               }
-
-               if ( $image_size[1] < $this->min_size ) {
-                       add_settings_error( 'site-icon', 'too-small', sprintf( __( 'The selected image is smaller than %upx in height.' ), $this->min_size ) );
-
-                       // Back to step one.
-                       $this->select_page();
-
-                       return;
-               }
-
-               // Let's resize the image so that the user can easier crop a image that in the admin view.
-               $crop_height = absint( $this->page_crop * $image_size[1] / $image_size[0] );
-               $cropped = wp_crop_image( $attachment_id, 0, 0, 0, 0, $this->page_crop, $crop_height );
-               if ( ! $cropped || is_wp_error( $cropped ) ) {
-                       wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
-               }
-               $cropped_size = getimagesize( $cropped );
-
-               // set default values (in case of no JS)
-               $crop_ratio = $image_size[0] / $cropped_size[0];
-               if ( $cropped_size[0] < $cropped_size[1] ) {
-                       $crop_x    = 0;
-                       $crop_y    = absint( ( $cropped_size[1] - $cropped_size[0] ) / 2 );
-                       $crop_size = $cropped_size[0];
-               } elseif ( $cropped_size[0] > $cropped_size[1] ) {
-                       $crop_x    = absint( ( $cropped_size[0] - $cropped_size[1] ) / 2 );
-                       $crop_y    = 0;
-                       $crop_size = $cropped_size[1];
-               } else {
-                       $crop_x    = 0;
-                       $crop_y    = 0;
-                       $crop_size = $cropped_size[0];
-               }
-
-               wp_delete_file( $cropped );
-
-               wp_localize_script( 'site-icon-crop', 'wpSiteIconCropData', $this->initial_crop_data( $crop_ratio, $cropped_size ) );
-               ?>
-
-               <div class="wrap">
-                       <h2 class="site-icon-title"><?php _e( 'Site Icon' ); ?></h2>
-                       <?php settings_errors( 'site-icon' ); ?>
-
-                       <div class="site-icon-crop-shell">
-                               <form action="options-general.php" method="post" enctype="multipart/form-data">
-                                       <p class="hide-if-no-js description"><?php _e('Choose the part of the image you want to use as your site icon.'); ?></p>
-                                       <p class="hide-if-js description"><strong><?php _e( 'You need Javascript to choose a part of the image.'); ?></strong></p>
-
-                                       <div class="site-icon-crop-preview-shell hide-if-no-js">
-                                               <h3><?php _e( 'Preview' ); ?></h3>
-                                               <strong><?php _e( 'As your favicon' ); ?></strong>
-                                               <div class="site-icon-crop-favicon-preview-shell">
-                                                       <img src="images/browser.png" class="site-icon-browser-preview" width="182" height="" alt="<?php esc_attr_e( 'Browser Chrome' ); ?>"/>
-
-                                                       <div class="site-icon-crop-preview-favicon">
-                                                               <img src="<?php echo esc_url( $url ); ?>" id="preview-favicon" alt="<?php esc_attr_e( 'Preview Favicon' ); ?>"/>
-                                                       </div>
-                                                       <span class="site-icon-browser-title"><?php bloginfo( 'name' ); ?></span>
-                                               </div>
-
-                                               <strong><?php _e( 'As a mobile icon' ); ?></strong>
-                                               <div class="site-icon-crop-preview-homeicon">
-                                                       <img src="<?php echo esc_url( $url ); ?>" id="preview-homeicon" alt="<?php esc_attr_e( 'Preview Home Icon' ); ?>"/>
-                                               </div>
-                                       </div>
-                                       <img src="<?php echo esc_url( $url ); ?>" id="crop-image" class="site-icon-crop-image" width="<?php echo esc_attr( $cropped_size[0] ); ?>" height="<?php echo esc_attr( $cropped_size[1] ); ?>" alt="<?php esc_attr_e( 'Image to be cropped' ); ?>"/>
-
-                                       <input type="hidden" id="crop-x" name="crop-x" value="<?php echo esc_attr( $crop_x ); ?>" />
-                                       <input type="hidden" id="crop-y" name="crop-y" value="<?php echo esc_attr( $crop_y ); ?>" />
-                                       <input type="hidden" id="crop-width" name="crop-w" value="<?php echo esc_attr( $crop_size ); ?>" />
-                                       <input type="hidden" id="crop-height" name="crop-h" value="<?php echo esc_attr( $crop_size ); ?>" />
-
-                                       <input type="hidden" name="action" value="set_site_icon" />
-                                       <input type="hidden" name="attachment_id" value="<?php echo esc_attr( $attachment_id ); ?>" />
-                                       <input type="hidden" name="crop_ratio" value="<?php echo esc_attr( $crop_ratio ); ?>" />
-                                       <?php if ( empty( $_POST ) && isset( $_GET['file'] ) ) : ?>
-                                               <input type="hidden" name="create-new-attachment" value="true" />
-                                       <?php endif; ?>
-                                       <?php wp_nonce_field( 'set-site-icon' ); ?>
-
-                                       <p class="submit">
-                                               <?php submit_button( __( 'Crop and Publish' ), 'primary hide-if-no-js', 'submit', false ); ?>
-                                               <?php submit_button( __( 'Publish' ), 'primary hide-if-js', 'submit', false ); ?>
-                                               <a class="button secondary" href="options-general.php"><?php _e( 'Cancel' ); ?></a>
-                                       </p>
-                               </form>
-                       </div>
-               </div>
-       <?php
-       }
-
-       /**
-        * Saves a new Site Icon.
-        *
-        * @since 4.3.0
-        */
-       public function set_site_icon() {
-               check_admin_referer( 'set-site-icon' );
-
-               // Delete any existing site icon images.
-               $this->delete_site_icon();
-
-               $attachment_id = absint( $_POST['attachment_id'] );
-
-               // TODO
-               if ( empty( $_POST['skip-cropping'] ) ) {
-                       $crop_ratio = (float) $_POST['crop_ratio'];
-                       $crop_data = $this->convert_coordinates_from_resized_to_full( $_POST['crop-x'], $_POST['crop-y'], $_POST['crop-w'], $_POST['crop-h'], $crop_ratio );
-                       $cropped = wp_crop_image( $attachment_id, $crop_data['crop_x'], $crop_data['crop_y'], $crop_data['crop_width'], $crop_data['crop_height'], $this->min_size, $this->min_size );
-               } elseif ( ! empty( $_POST['create-new-attachment'] ) ) {
-                       $cropped = _copy_image_file( $attachment_id );
-               } else {
-                       $cropped = get_attached_file( $attachment_id );
-               }
-
-               if ( ! $cropped || is_wp_error( $cropped ) ) {
-                       wp_die( __( 'Image could not be processed. Please go back and try again.' ), __( 'Image Processing Error' ) );
-               }
-
-               $object = $this->create_attachment_object( $cropped, $attachment_id );
-
-               if ( ! empty( $_POST['create-new-attachment'] ) ) {
-                       unset( $object['ID'] );
-               }
-
-               // Update the attachment
-               add_filter( 'intermediate_image_sizes_advanced', array( $this, 'additional_sizes' ) );
-               $attachment_id = $this->insert_attachment( $object, $cropped );
-               remove_filter( 'intermediate_image_sizes_advanced', array( $this, 'additional_sizes' ) );
-
-               // Save the site_icon data into option
-               update_option( 'site_icon', $attachment_id );
-
-               add_settings_error( 'site-icon', 'icon-updated', __( 'Site Icon updated.' ), 'updated' );
-       }
-
-       /**
-        * This function is used to pass data to the localize script
-        * so that we can center the cropper and also set the minimum
-        * cropper.
-        *
-        * @since 4.3.0
-        *
-        * @param float $ratio
-        * @param array $cropped_size
-        * @return array
-        */
-       public function initial_crop_data( $ratio, $cropped_size ) {
-               $init_x = $init_y = $init_size = 0;
-
-               $min_crop_size  = ( $this->min_size / $ratio );
-               $resized_width  = $cropped_size[0];
-               $resized_height = $cropped_size[1];
-
-               // Landscape format ( width > height )
-               if ( $resized_width > $resized_height ) {
-                       $init_x    = ( $this->page_crop - $resized_height ) / 2;
-                       $init_size = $resized_height;
-               }
-
-               // Portrait format ( height > width )
-               if ( $resized_width < $resized_height ) {
-                       $init_y    = ( $this->page_crop - $resized_width ) / 2;
-                       $init_size = $resized_height;
-               }
-
-               // Square height == width
-               if ( $resized_width == $resized_height ) {
-                       $init_size = $resized_height;
-               }
-
-               return array(
-                       'init_x'    => $init_x,
-                       'init_y'    => $init_y,
-                       'init_size' => $init_size,
-                       'min_size'  => $min_crop_size,
-               );
-       }
-
-       /**
-        * Converts the coordinates from the downsized image to the original image for accurate cropping.
-        *
-        * @since 4.3.0
-        *
-        * @param int   $crop_x
-        * @param int   $crop_y
-        * @param int   $crop_width
-        * @param int   $crop_height
-        * @param float $ratio
-        * @return array
-        */
-       public function convert_coordinates_from_resized_to_full( $crop_x, $crop_y, $crop_width, $crop_height, $ratio ) {
-               return array(
-                       'crop_x'      => floor( $crop_x * $ratio ),
-                       'crop_y'      => floor( $crop_y * $ratio ),
-                       'crop_width'  => floor( $crop_width * $ratio ),
-                       'crop_height' => floor( $crop_height * $ratio ),
-               );
-       }
-
-       /**
-        * Upload the file to be cropped in the second step.
-        *
-        * @since 4.3.0
-        */
-       public function handle_upload() {
-               $uploaded_file = $_FILES['site-icon'];
-               $file_type     = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'] );
-               if ( ! wp_match_mime_types( 'image', $file_type['type'] ) ) {
-                       wp_die( __( 'The uploaded file is not a valid image. Please try again.' ) );
-               }
-
-               $file = wp_handle_upload( $uploaded_file, array( 'test_form' => false ) );
-
-               if ( isset( $file['error'] ) ) {
-                       wp_die( $file['error'], __( 'Image Upload Error' ) );
-               }
-
-               $url      = $file['url'];
-               $type     = $file['type'];
-               $file     = $file['file'];
-               $filename = basename( $file );
-
-               // Construct the object array
-               $object = array(
-                       'post_title'     => $filename,
-                       'post_content'   => $url,
-                       'post_mime_type' => $type,
-                       'guid'           => $url,
-                       'context'        => 'site-icon',
-               );
-
-               // Save the data
-               $attachment_id = wp_insert_attachment( $object, $file );
-
-               return compact( 'attachment_id', 'file', 'filename', 'url', 'type' );
-       }
-
-       /**
-        * Create an attachment 'object'.
-        *
-        * @since 4.3.0
-        *
-        * @param string $cropped              Cropped image URL.
-        * @param int    $parent_attachment_id Attachment ID of parent image.
-        * @return array Attachment object.
-        */
-       public function create_attachment_object( $cropped, $parent_attachment_id ) {
-               $parent     = get_post( $parent_attachment_id );
-               $parent_url = $parent->guid;
-               $url        = str_replace( basename( $parent_url ), basename( $cropped ), $parent_url );
-
-               $size       = @getimagesize( $cropped );
-               $image_type = ( $size ) ? $size['mime'] : 'image/jpeg';
-
-               $object = array(
-                       'ID'             => $parent_attachment_id,
-                       'post_title'     => basename( $cropped ),
-                       'post_content'   => $url,
-                       'post_mime_type' => $image_type,
-                       'guid'           => $url,
-                       'context'        => 'site-icon'
-               );
-
-               return $object;
-       }
-
-       /**
-        * Insert an attachment and its metadata.
-        *
-        * @since 4.3.0
-        *
-        * @param array  $object  Attachment object.
-        * @param string $cropped Cropped image URL.
-        * @return int Attachment ID.
-        */
-       public function insert_attachment( $object, $cropped ) {
-               $attachment_id = wp_insert_attachment( $object, $cropped );
-               $metadata      = wp_generate_attachment_metadata( $attachment_id, $cropped );
-
-               /**
-                * Filter the site icon attachment metadata.
-                *
-                * @since 4.3.0
-                *
-                * @see wp_generate_attachment_metadata()
-                *
-                * @param array $metadata Attachment metadata.
-                */
-               $metadata = apply_filters( 'site_icon_attachment_metadata', $metadata );
-               wp_update_attachment_metadata( $attachment_id, $metadata );
-
-               return $attachment_id;
-       }
-
-       /**
-        * Add additional sizes to be made when creating the site_icon images.
-        *
-        * @since 4.3.0
-        *
-        * @param array $sizes
-        * @return array
-        */
-       public function additional_sizes( $sizes = array() ) {
-               $only_crop_sizes = array();
-
-               /**
-                * Filter the different dimensions that a site icon is saved in.
-                *
-                * @since 4.3.0
-                *
-                * @param array $site_icon_sizes Sizes available for the Site Icon.
-                */
-               $this->site_icon_sizes = apply_filters( 'site_icon_image_sizes', $this->site_icon_sizes );
-
-               // Use a natural sort of numbers.
-               natsort( $this->site_icon_sizes );
-               $this->site_icon_sizes = array_reverse( $this->site_icon_sizes );
-
-               // ensure that we only resize the image into
-               foreach ( $sizes as $name => $size_array ) {
-                       if ( $size_array['crop'] ) {
-                               $only_crop_sizes[ $name ] = $size_array;
-                       }
-               }
-
-               foreach ( $this->site_icon_sizes as $size ) {
-                       if ( $size < $this->min_size ) {
-                               $only_crop_sizes[ 'site_icon-' . $size ] = array(
-                                       'width ' => $size,
-                                       'height' => $size,
-                                       'crop'   => true,
-                               );
-                       }
-               }
-
-               return $only_crop_sizes;
-       }
-
-       /**
-        * Add Site Icon sizes to the array of image sizes on demand.
-        *
-        * @since 4.3.0
-        *
-        * @param array $sizes
-        * @return array
-        */
-       public function intermediate_image_sizes( $sizes = array() ) {
-               /** This filter is documented in wp-admin/includes/site-icon.php */
-               $this->site_icon_sizes = apply_filters( 'site_icon_image_sizes', $this->site_icon_sizes );
-               foreach ( $this->site_icon_sizes as $size ) {
-                       $sizes[] = 'site_icon-' . $size;
-               }
-
-               return $sizes;
-       }
-
-       /**
-        * Deletes all additional image sizes, used for site icons.
-        *
-        * @since 4.3.0
-        *
-        * @return bool
-        */
-       public function delete_site_icon() {
-               // We add the filter to make sure that we also delete all the added images.
-               add_filter( 'intermediate_image_sizes', array( $this, 'intermediate_image_sizes' ) );
-               wp_delete_attachment( get_option( 'site_icon' ), true );
-               remove_filter( 'intermediate_image_sizes', array( $this, 'intermediate_image_sizes' ) );
-
-               return delete_option( 'site_icon' );
-       }
-
-       /**
-        * Deletes the Site Icon when the image file is deleted.
-        *
-        * @since 4.3.0
-        *
-        * @param int $post_id Attachment ID.
-        */
-       public function delete_attachment_data( $post_id ) {
-               $site_icon_id = get_option( 'site_icon' );
-
-               if ( $site_icon_id && $post_id == $site_icon_id ) {
-                       delete_option( 'site_icon' );
-               }
-       }
-
-       /**
-        * Adds custom image sizes when meta data for an image is requested, that happens to be used as Site Icon.
-        *
-        * @since 4.3.0
-        *
-        * @param null|array|string $value    The value get_metadata() should
-        *                                    return - a single metadata value,
-        *                                    or an array of values.
-        * @param int               $post_id  Post ID.
-        * @param string            $meta_key Meta key.
-        * @param string|array      $single   Meta value, or an array of values.
-        * @return array|null|string
-        */
-       public function get_post_metadata( $value, $post_id, $meta_key, $single ) {
-               $site_icon_id = get_option( 'site_icon' );
-
-               if ( $post_id == $site_icon_id && '_wp_attachment_backup_sizes' == $meta_key && $single ) {
-                       add_filter( 'intermediate_image_sizes', array( $this, 'intermediate_image_sizes' ) );
-               }
-
-               return $value;
-       }
-}
-
-$GLOBALS['wp_site_icon'] = new WP_Site_Icon;
</del></span></pre>
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