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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 3095 | // Delete the temporary cropped file, we don't need it. |
| 3096 | wp_delete_file( $cropped ); |
| 3097 | |
| 3098 | // Additional sizes in wp_prepare_attachment_for_js(). |
| 3099 | add_filter( 'image_size_names_choose', array( $wp_site_icon, 'additional_sizes' ) ); |
| 3100 | break; |
| 3101 | } |
| 3102 | |
| 3103 | /** This filter is documented in wp-admin/custom-header.php */ |
| 3104 | $cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication. |
| 3105 | $object = $wp_site_icon->create_attachment_object( $cropped, $attachment_id ); |
| 3106 | unset( $object['ID'] ); |
| 3107 | |
| 3108 | // Update the attachment. |
| 3109 | add_filter( 'intermediate_image_sizes_advanced', array( $wp_site_icon, 'additional_sizes' ) ); |
| 3110 | $attachment_id = $wp_site_icon->insert_attachment( $object, $cropped ); |
| 3111 | remove_filter( 'intermediate_image_sizes_advanced', array( $wp_site_icon, 'additional_sizes' ) ); |
| 3112 | |
| 3113 | // Additional sizes in wp_prepare_attachment_for_js(). |
| Line | Code |
| 3124 | * @since 4.3.0 |
| 3125 | * |
| 3126 | * @param string $context The Customizer control requesting the cropped image. |
| 3127 | * @param int $attachment_id The attachment ID of the original image. |
| 3128 | * @param string $cropped Path to the cropped image file. |
| 3129 | */ |
| 3130 | do_action( 'wp_ajax_crop_image_pre_save', $context, $attachment_id, $cropped ); |
| 3131 | |
| 3132 | /** This filter is documented in wp-admin/custom-header.php */ |
| 3133 | $cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication. |
| 3134 | |
| 3135 | $parent_url = get_post( $attachment_id )->guid; |
| 3136 | $url = str_replace( basename( $parent_url ), basename( $cropped ), $parent_url ); |
| 3137 | |
| 3138 | $size = @getimagesize( $cropped ); |
| 3139 | $image_type = ( $size ) ? $size['mime'] : 'image/jpeg'; |
| 3140 | |
| 3141 | $object = array( |
| 3142 | 'post_title' => basename( $cropped ), |