to upload.
*/
class MASHSB_RWMB_Image_Field extends MASHSB_RWMB_File_Field
{
/**
* Enqueue scripts and styles.
*/
static function admin_enqueue_scripts()
{
// Enqueue same scripts and styles as for file field
parent::admin_enqueue_scripts();
wp_enqueue_style( 'mashsb-rwmb-image', MASHSB_RWMB_CSS_URL . 'image.css', array(), MASHSB_RWMB_VER );
wp_enqueue_script( 'mashsb-rwmb-image', MASHSB_RWMB_JS_URL . 'image.js', array( 'jquery-ui-sortable' ), MASHSB_RWMB_VER, true );
}
/**
* Add custom actions.
*/
static function add_actions()
{
// Do same actions as file field
parent::add_actions();
// Reorder images via Ajax
add_action( 'wp_ajax_rwmb_reorder_images', array( __CLASS__, 'wp_ajax_reorder_images' ) );
}
/**
* Ajax callback for reordering images.
*/
static function wp_ajax_reorder_images()
{
$post_id = (int) filter_input( INPUT_POST, 'post_id', FILTER_SANITIZE_NUMBER_INT );
$field_id = (string) filter_input( INPUT_POST, 'field_id' );
$order = (string) filter_input( INPUT_POST, 'order' );
check_ajax_referer( "mashsb-rwmb-reorder-images_{$field_id}" );
parse_str( $order, $items );
delete_post_meta( $post_id, $field_id );
foreach ( $items['item'] as $item )
{
add_post_meta( $post_id, $field_id, $item, false );
}
wp_send_json_success();
}
/**
* Get field HTML
*
* @param mixed $meta
* @param array $field
*
* @return string
*/
static function html( $meta, $field )
{
$i18n_title = apply_filters( 'rwmb_image_upload_string', _x( 'Upload Images', 'image upload', 'meta-box' ), $field );
$i18n_more = apply_filters( 'rwmb_image_add_string', _x( '+ Add new image', 'image upload', 'meta-box' ), $field );
// Uploaded images
$html = self::get_uploaded_images( $meta, $field );
// Show form upload
$html .= sprintf(
'%s
',
$i18n_title,
$field['id'],
$i18n_more
);
return $html;
}
/**
* Get HTML markup for uploaded images
*
* @param array $images
* @param array $field
*
* @return string
*/
static function get_uploaded_images( $images, $field )
{
$reorder_nonce = wp_create_nonce( "mashsb-rwmb-reorder-images_{$field['id']}" );
$delete_nonce = wp_create_nonce( "mashsb-rwmb-delete-file_{$field['id']}" );
$classes = array( 'mashsb-rwmb-images', 'mashsb-rwmb-uploaded' );
if ( count( $images ) <= 0 )
$classes[] = 'hidden';
$list = '';
$html = sprintf(
$list,
implode( ' ', $classes ),
$field['id'],
$delete_nonce,
$reorder_nonce,
$field['force_delete'] ? 1 : 0,
$field['max_file_uploads']
);
foreach ( $images as $image )
{
$html .= self::img_html( $image );
}
$html .= '
';
return $html;
}
/**
* Get HTML markup for ONE uploaded image
*
* @param int $image Image ID
* @return string
*/
static function img_html( $image )
{
$i18n_delete = apply_filters( 'rwmb_image_delete_string', _x( 'Delete', 'image upload', 'meta-box' ) );
$i18n_edit = apply_filters( 'rwmb_image_edit_string', _x( 'Edit', 'image upload', 'meta-box' ) );
$item = '
';
$src = wp_get_attachment_image_src( $image, 'thumbnail' );
$src = $src[0];
$link = get_edit_post_link( $image );
return sprintf(
$item,
$image,
$src,
$i18n_edit, $link, $i18n_edit,
$i18n_delete, $image
);
}
/**
* Output the field value
* Display unordered list of images with option for size and link to full size
*
* @param array $field Field parameters
* @param array $args Additional arguments. Not used for these fields.
* @param int|null $post_id Post ID. null for current post. Optional.
*
* @return mixed Field value
*/
static function the_value( $field, $args = array(), $post_id = null )
{
$value = self::get_value( $field, $args, $post_id );
if ( ! $value )
return '';
$output = '';
foreach ( $value as $file_info )
{
$img = sprintf(
'',
esc_url( $file_info['url'] ),
esc_attr( $file_info['alt'] ),
esc_attr( $file_info['title'] )
);
// Link thumbnail to full size image?
if ( isset( $args['link'] ) && $args['link'] )
{
$img = sprintf(
'%s',
esc_url( $file_info['full_url'] ),
esc_attr( $file_info['title'] ),
$img
);
}
$output .= "- $img
";
}
$output .= '
';
return $output;
}
/**
* Get uploaded file information
*
* @param int $file_id Attachment image ID (post ID). Required.
* @param array $args Array of arguments (for size).
*
* @return array|bool False if file not found. Array of image info on success
*/
static function file_info( $file_id, $args = array() )
{
$args = wp_parse_args( $args, array(
'size' => 'thumbnail',
) );
$img_src = wp_get_attachment_image_src( $file_id, $args['size'] );
if ( ! $img_src )
{
return false;
}
$attachment = get_post( $file_id );
$path = get_attached_file( $file_id );
$info = array(
'ID' => $file_id,
'name' => basename( $path ),
'path' => $path,
'url' => $img_src[0],
'width' => $img_src[1],
'height' => $img_src[2],
'full_url' => wp_get_attachment_url( $file_id ),
'title' => $attachment->post_title,
'caption' => $attachment->post_excerpt,
'description' => $attachment->post_content,
'alt' => get_post_meta( $file_id, '_wp_attachment_image_alt', true ),
);
if ( function_exists( 'wp_get_attachment_image_srcset' ) )
{
$info['srcset'] = wp_get_attachment_image_srcset( $file_id );
}
return $info;
}
}