250 lines
6.3 KiB
PHP
250 lines
6.3 KiB
PHP
<?php
|
|
/**
|
|
* Class for implementing site icon functionality.
|
|
*
|
|
* @since 4.3.0
|
|
*/
|
|
class WP_Site_Icon {
|
|
|
|
/**
|
|
* The minimum size of the site icon.
|
|
*
|
|
* @since 4.3.0
|
|
* @access public
|
|
* @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
|
|
* @access public
|
|
* @var int
|
|
*/
|
|
public $page_crop = 512;
|
|
|
|
/**
|
|
* List of site icon sizes.
|
|
*
|
|
* @since 4.3.0
|
|
* @access public
|
|
* @var array
|
|
*/
|
|
public $site_icon_sizes = array(
|
|
/*
|
|
* Square, medium sized tiles for IE11+.
|
|
*
|
|
* See https://msdn.microsoft.com/library/dn455106(v=vs.85).aspx
|
|
*/
|
|
270,
|
|
|
|
/*
|
|
* App icon for Android/Chrome.
|
|
*
|
|
* @link https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android
|
|
* @link https://developer.chrome.com/multidevice/android/installtohomescreen
|
|
*/
|
|
192,
|
|
|
|
/*
|
|
* App icons up to iPhone 6 Plus.
|
|
*
|
|
* See https://developer.apple.com/library/prerelease/ios/documentation/UserExperience/Conceptual/MobileHIG/IconMatrix.html
|
|
*/
|
|
180,
|
|
|
|
// Our regular Favicon.
|
|
32,
|
|
);
|
|
|
|
/**
|
|
* Registers actions and filters.
|
|
*
|
|
* @since 4.3.0
|
|
* @access public
|
|
*/
|
|
public function __construct() {
|
|
add_action( 'delete_attachment', array( $this, 'delete_attachment_data' ), 10, 1 );
|
|
add_filter( 'get_post_metadata', array( $this, 'get_post_metadata' ), 10, 4 );
|
|
}
|
|
|
|
/**
|
|
* Creates 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;
|
|
}
|
|
|
|
/**
|
|
* Inserts an attachment.
|
|
*
|
|
* @since 4.3.0
|
|
* @access public
|
|
*
|
|
* @param array $object Attachment object.
|
|
* @param string $file File path of the attached image.
|
|
* @return int Attachment ID
|
|
*/
|
|
public function insert_attachment( $object, $file ) {
|
|
$attachment_id = wp_insert_attachment( $object, $file );
|
|
$this->update_attachment_metadata( $attachment_id, $file );
|
|
|
|
return $attachment_id;
|
|
}
|
|
|
|
/**
|
|
* Handles updating the metadata of an attachment.
|
|
*
|
|
* @since 4.3.0
|
|
*
|
|
* @param int $attachment_id Attachment ID
|
|
* @param string $file File path of the attached image.
|
|
*/
|
|
public function update_attachment_metadata( $attachment_id, $file ) {
|
|
$metadata = wp_generate_attachment_metadata( $attachment_id, $file );
|
|
|
|
/**
|
|
* 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 );
|
|
}
|
|
|
|
/**
|
|
* Adds additional sizes to be made when creating the site_icon images.
|
|
*
|
|
* @since 4.3.0
|
|
* @access public
|
|
*
|
|
* @param array $sizes List of additional sizes.
|
|
* @return array Additional image sizes.
|
|
*/
|
|
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 ( isset( $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;
|
|
}
|
|
|
|
/**
|
|
* Adds Site Icon sizes to the array of image sizes on demand.
|
|
*
|
|
* @since 4.3.0
|
|
* @access public
|
|
*
|
|
* @param array $sizes List of image sizes.
|
|
* @return array List of intermediate image sizes.
|
|
*/
|
|
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 the Site Icon when the image file is deleted.
|
|
*
|
|
* @since 4.3.0
|
|
* @access public
|
|
*
|
|
* @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
|
|
* @access public
|
|
*
|
|
* @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 The attachment metadata value, array of values, or null.
|
|
*/
|
|
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;
|