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<?php
/**
* Checkbox field preview renderer.
*
* Displays a check mark for checked field (when it has the proper value, not just nonzero one). Otherwise, display nothing.
*
* @since 1.9.1
*/
final class WPCF_Field_Renderer_Preview_Checkbox extends WPCF_Field_Renderer_Preview_Base {
/**
* @param mixed $value Single field value in the intermediate format (see data mappers for details)
*
* @return string Rendered HTML
*/
protected function render_single( $value ) {
$field_definition = $this->field->get_definition();
$value_of_checked = $field_definition->get_forced_value();
if( null != $value_of_checked && $value_of_checked == $value ) {
return '✔'; // ballot box with check - checkbox - checkmark - miscellaneous symbols
}
// We may not even get here without the checkbox being checked (when no value is saved to database)
return '';
}
protected function get_maximum_total_length() {
return 0;
}
}