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<?php
/**
* Media field class which users WordPress media popup to upload and select files.
*
* @package Meta Box
*/
/**
* The media field class.
*/
class RWMB_Media_Field extends RWMB_File_Field {
/**
* Enqueue scripts and styles.
*/
public static function admin_enqueue_scripts() {
wp_enqueue_media();
if ( ! is_admin() ) {
wp_register_script( 'media-grid', includes_url( 'js/media-grid.min.js' ), array( 'media-editor' ), '', true );
}
wp_enqueue_style( 'rwmb-media', RWMB_CSS_URL . 'media.css', array(), RWMB_VER );
wp_enqueue_script( 'rwmb-media', RWMB_JS_URL . 'media.js', array( 'jquery-ui-sortable', 'underscore', 'backbone', 'media-grid' ), RWMB_VER, true );
self::localize_script( 'rwmb-media', 'i18nRwmbMedia', array(
'add' => apply_filters( 'rwmb_media_add_string', _x( '+ Add Media', 'media', 'meta-box' ) ),
'single' => apply_filters( 'rwmb_media_single_files_string', _x( ' file', 'media', 'meta-box' ) ),
'multiple' => apply_filters( 'rwmb_media_multiple_files_string', _x( ' files', 'media', 'meta-box' ) ),
'remove' => apply_filters( 'rwmb_media_remove_string', _x( 'Remove', 'media', 'meta-box' ) ),
'edit' => apply_filters( 'rwmb_media_edit_string', _x( 'Edit', 'media', 'meta-box' ) ),
'view' => apply_filters( 'rwmb_media_view_string', _x( 'View', 'media', 'meta-box' ) ),
'noTitle' => _x( 'No Title', 'media', 'meta-box' ),
'loadingUrl' => admin_url( 'images/spinner.gif' ),
'extensions' => self::get_mime_extensions(),
'select' => apply_filters( 'rwmb_media_select_string', _x( 'Select Files', 'media', 'meta-box' ) ),
'or' => apply_filters( 'rwmb_media_or_string', _x( 'or', 'media', 'meta-box' ) ),
'uploadInstructions' => apply_filters( 'rwmb_media_upload_instructions_string', _x( 'Drop files here to upload', 'media', 'meta-box' ) ),
) );
}
/**
* Add actions.
*/
public static function add_actions() {
$args = func_get_args();
$field = reset( $args );
add_action( 'print_media_templates', array( self::get_class_name( $field ), 'print_templates' ) );
}
/**
* Get field HTML.
*
* @param mixed $meta Meta value.
* @param array $field Field parameters.
*
* @return string
*/
public static function html( $meta, $field ) {
$meta = (array) $meta;
$meta = implode( ',', $meta );
$attributes = self::get_attributes( $field, $meta );
$html = sprintf(
'<input %s data-options="%s">',
self::render_attributes( $attributes ),
esc_attr( wp_json_encode( $field['js_options'] ) )
);
return $html;
}
/**
* Normalize parameters for field.
*
* @param array $field Field parameters.
*
* @return array
*/
public static function normalize( $field ) {
$field = parent::normalize( $field );
$field = wp_parse_args( $field, array(
'std' => array(),
'mime_type' => '',
'max_file_uploads' => 0,
'force_delete' => false,
'max_status' => true,
'js_options' => array(),
) );
$field['js_options'] = wp_parse_args( $field['js_options'], array(
'mimeType' => $field['mime_type'],
'maxFiles' => $field['max_file_uploads'],
'forceDelete' => $field['force_delete'] ? true : false,
'maxStatus' => $field['max_status'],
) );
$field['multiple'] = true;
return $field;
}
/**
* Get the attributes for a field.
*
* @param array $field Field parameters.
* @param mixed $value Meta value.
*
* @return array
*/
public static function get_attributes( $field, $value = null ) {
$attributes = parent::get_attributes( $field, $value );
$attributes['type'] = 'hidden';
$attributes['name'] = $field['clone'] ? str_replace( '[]', '', $attributes['name'] ) : $attributes['name'];
$attributes['id'] = false;
$attributes['value'] = $value;
return $attributes;
}
/**
* Get supported mime extensions.
*
* @return array
*/
protected static function get_mime_extensions() {
$mime_types = wp_get_mime_types();
$extensions = array();
foreach ( $mime_types as $ext => $mime ) {
$ext = explode( '|', $ext );
$extensions[ $mime ] = $ext;
$mime_parts = explode( '/', $mime );
if ( empty( $extensions[ $mime_parts[0] ] ) ) {
$extensions[ $mime_parts[0] ] = array();
}
$extensions[ $mime_parts[0] ] = array_merge( $extensions[ $mime_parts[0] ], $ext );
$extensions[ $mime_parts[0] . '/*' ] = $extensions[ $mime_parts[0] ];
}
return $extensions;
}
/**
* Get meta values to save.
*
* @param mixed $new The submitted meta value.
* @param mixed $old The existing meta value.
* @param int $post_id The post ID.
* @param array $field The field parameters.
*
* @return array|mixed
*/
public static function value( $new, $old, $post_id, $field ) {
$new = ! is_array( $new ) && is_string( $new ) ? explode( ',', $new ) : $new;
array_walk( $new, 'absint' );
return array_filter( array_unique( $new ) );
}
/**
* Save meta value.
*
* @param mixed $new The submitted meta value.
* @param mixed $old The existing meta value.
* @param int $post_id The post ID.
* @param array $field The field parameters.
*/
public static function save( $new, $old, $post_id, $field ) {
$storage = $field['storage'];
$storage->delete( $post_id, $field['id'] );
parent::save( $new, array(), $post_id, $field );
}
/**
* Template for media item.
*/
public static function print_templates() {
require_once RWMB_INC_DIR . 'templates/media.php';
}
}
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