The Headers. Based upon a post from Julio Biason.
Version: 1.4.1
Author: Andy Fragen
Author URI: http://thefragens.com
Text Domain: add-custom-header-images
Domain Path: /languages
GitHub Plugin URI: https://github.com/afragen/add-custom-header-images
GitHub Branch: master
Requires WP: 3.4.0
*/
/*
Copyright 2014 Andy Fragen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* Class Add_Custom_Header_Images
*/
class Add_Custom_Header_Images {
/**
* Constructor
*/
public function __construct() {
global $wp_version;
load_plugin_textdomain( 'add-custom-header-images', false, basename( dirname( __FILE__ ) ) );
if ( is_admin() &&
is_null( get_page_by_title( esc_attr__( 'The Headers', 'add-custom-header-images' ) ) ) ||
! $wp_version >= 3.4
) {
add_action( 'admin_notices', array( $this, 'headers_page_present' ) );
return false;
}
add_action( 'after_setup_theme', array( $this, 'new_default_header_images' ) );
}
/**
* Disable plugin if 'The Headers' page does not exist
*/
public function headers_page_present () {
?>
$value ) {
if ( ! is_int( $key ) ) { $header_ids[] = $key; }
}
unregister_default_headers( $header_ids );
}
/**
* Add new default header images
*
* @link http://juliobiason.net/2011/10/25/twentyeleven-with-easy-rotating-header-images/
*/
public function new_default_header_images() {
$page = get_page_by_title( __( 'The Headers', 'add-custom-header-images' ) );
if ( ! is_object( $page ) ) {
return false;
}
$this->remove_default_header_images();
$headers = array();
$images = get_children(
array(
'post_parent' => $page->ID,
'post_status' => 'inherit',
'post_type' => 'attachment',
'post_mime_type' => 'image',
'order' => 'ASC',
'orderby' => 'menu_order ID',
)
);
if ( empty( $images ) ) {
return false;
}
foreach ( $images as $key => $image ) {
$thumb = wp_get_attachment_image_src( $image->ID, 'medium' );
// WordPress 4.4.0 compatibility
$srcset = null;
if ( function_exists( 'wp_get_attachment_image_srcset' ) ) {
$srcset = wp_get_attachment_image_srcset( $image->ID );
}
$headers[] = array(
'url' => $image->guid,
'thumbnail_url' => $thumb[0],
'description' => $image->post_title,
'attachment_id' => $srcset,
);
}
register_default_headers( $headers );
}
}
new Add_Custom_Header_Images();