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<?php
/**
* Factory for field renderers.
*
* This is especially useful because in most cases different types of fields have to use different renderers in
* different context. The logic for choosing the right renderer should be completely encapsulated in this class.
*
* @since 1.9.1
*/
class WPCF_Field_Renderer_Factory {
private static $instance = null;
private function __construct() { }
public static function get_instance() {
if( null == self::$instance ) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Get a preview renderer for given field.
*
* @param WPCF_Field_Instance_Abstract $field
* @param array $args Arguments for the preview renderer.
* @return WPCF_Field_Renderer_Preview_Base Preview renderer for a specific field.
* @throws InvalidArgumentException
* @since 1.9.1
*/
public function create_preview_renderer( $field, $args = array() ) {
if( ! $field instanceof WPCF_Field_Instance_Abstract ) {
throw new InvalidArgumentException( 'Not a field instance.' );
}
if( ! is_array( $args ) ) {
throw new InvalidArgumentException( 'Not an array.' );
}
$field_type = $field->get_field_type();
switch( $field_type->get_slug() ) {
case Types_Field_Type_Definition_Factory::GOOGLE_ADDRESS:
return new WPCF_Field_Renderer_Preview_Address( $field, $args );
case Types_Field_Type_Definition_Factory::AUDIO:
case Types_Field_Type_Definition_Factory::FILE:
case Types_Field_Type_Definition_Factory::VIDEO:
return new WPCF_Field_Renderer_Preview_File( $field, $args );
case Types_Field_Type_Definition_Factory::COLORPICKER:
return new WPCF_Field_Renderer_Preview_Colorpicker( $field, $args );
case Types_Field_Type_Definition_Factory::DATE:
return new WPCF_Field_Renderer_Preview_Date( $field, $args );
case Types_Field_Type_Definition_Factory::EMBED:
case Types_Field_Type_Definition_Factory::URL:
return new WPCF_Field_Renderer_Preview_URL( $field, $args );
case Types_Field_Type_Definition_Factory::CHECKBOX:
return new WPCF_Field_Renderer_Preview_Checkbox( $field, $args );
case Types_Field_Type_Definition_Factory::CHECKBOXES:
return new WPCF_Field_Renderer_Preview_Checkboxes( $field, $args );
case Types_Field_Type_Definition_Factory::IMAGE:
return new WPCF_Field_Renderer_Preview_Image( $field, $args );
case Types_Field_Type_Definition_Factory::RADIO:
case Types_Field_Type_Definition_Factory::SELECT:
return new WPCF_Field_Renderer_Preview_Radio( $field, $args );
case Types_Field_Type_Definition_Factory::SKYPE:
return new WPCF_Field_Renderer_Preview_Skype( $field, $args );
default:
return new WPCF_Field_Renderer_Preview_Textfield( $field, $args );
break;
}
}
}