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<?php
/**
* The image select field which behaves similar to the radio field but uses images as options.
*
* @package Meta Box
*/
/**
* The image select field class.
*/
class RWMB_Image_Select_Field extends RWMB_Field {
/**
* Enqueue scripts and styles.
*/
public static function admin_enqueue_scripts() {
wp_enqueue_style( 'rwmb-image-select', RWMB_CSS_URL . 'image-select.css', array(), RWMB_VER );
wp_enqueue_script( 'rwmb-image-select', RWMB_JS_URL . 'image-select.js', array( 'jquery' ), RWMB_VER, true );
}
/**
* Get field HTML.
*
* @param mixed $meta Meta value.
* @param array $field Field parameters.
* @return string
*/
public static function html( $meta, $field ) {
$html = array();
$tpl = '<label class="rwmb-image-select"><img src="%s"><input type="%s" class="rwmb-image_select hidden" name="%s" value="%s"%s></label>';
$meta = (array) $meta;
foreach ( $field['options'] as $value => $image ) {
$html[] = sprintf(
$tpl,
$image,
$field['multiple'] ? 'checkbox' : 'radio',
$field['field_name'],
$value,
checked( in_array( $value, $meta ), true, false )
);
}
return implode( ' ', $html );
}
/**
* Normalize parameters for field.
*
* @param array $field Field parameters.
* @return array
*/
public static function normalize( $field ) {
$field = parent::normalize( $field );
$field['field_name'] .= $field['multiple'] ? '[]' : '';
return $field;
}
/**
* Format a single value for the helper functions.
*
* @param array $field Field parameters.
* @param string $value The meta value.
* @return string
*/
public static function format_single_value( $field, $value ) {
return sprintf( '<img src="%s">', esc_url( $field['options'][ $value ] ) );
}
}
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