includes/htmlform/fields/HTMLHiddenField.php

   1 <?php
   2
   3 class HTMLHiddenField extends HTMLFormField {
   4         protected $outputAsDefault = true;
   5
   6         public function __construct( $params ) {
   7                 parent::__construct( $params );
   8
   9                 if ( isset( $this->mParams['output-as-default'] ) ) {
  10                         $this->outputAsDefault = (bool)$this->mParams['output-as-default'];
  11                 }
  12
  13                 # Per HTML5 spec, hidden fields cannot be 'required'
  14                 # https://www.w3.org/TR/html5/forms.html#hidden-state-%28type=hidden%29
  15                 unset( $this->mParams['required'] );
  16         }
  17
  18         public function getHiddenFieldData( $value ) {
  19                 $params = [];
  20                 if ( $this->mID ) {
  21                         $params['id'] = $this->mID;
  22                 }
  23
  24                 if ( $this->outputAsDefault ) {
  25                         $value = $this->mDefault;
  26                 }
  27
  28                 return [ $this->mName, $value, $params ];
  29         }
  30
  31         public function getTableRow( $value ) {
  32                 list( $name, $value, $params ) = $this->getHiddenFieldData( $value );
  33                 $this->mParent->addHiddenField( $name, $value, $params );
  34                 return '';
  35         }
  36
  37         /**
  38          * @param string $value
  39          * @return string
  40          * @since 1.20
  41          */
  42         public function getDiv( $value ) {
  43                 return $this->getTableRow( $value );
  44         }
  45
  46         /**
  47          * @param string $value
  48          * @return string
  49          * @since 1.20
  50          */
  51         public function getRaw( $value ) {
  52                 return $this->getTableRow( $value );
  53         }
  54
  55         public function getInputHTML( $value ) {
  56                 return '';
  57         }
  58
  59         public function canDisplayErrors() {
  60                 return false;
  61         }
  62
  63         public function hasVisibleOutput() {
  64                 return false;
  65         }
  66 }