includes/htmlform/fields/HTMLTitlesMultiselectField.php

   1 <?php
   2
   3 use MediaWiki\Widget\TitlesMultiselectWidget;
   4
   5 /**
   6  * Implements a tag multiselect input field for titles.
   7  *
   8  * Besides the parameters recognized by HTMLTitleTextField, additional recognized
   9  * parameters are:
  10  *  default - (optional) Array of titles to use as preset data
  11  *  placeholder - (optional) Custom placeholder message for input
  12  *
  13  * The result is the array of titles
  14  *
  15  * This widget is a duplication of HTMLUsersMultiselectField, except for:
  16  * - The configuration variable changed to 'titles' (from 'users')
  17  * - OOUI modules were adjusted for the TitlesMultiselectWidget
  18  * - The PHP version instantiates a MediaWiki\Widget\TitlesMultiselectWidget
  19  *
  20  * @note This widget is not likely to remain functional in non-OOUI forms.
  21  */
  22 class HTMLTitlesMultiselectField extends HTMLTitleTextField {
  23         public function __construct( $params ) {
  24                 $params += [
  25                         // This overrides the default from HTMLTitleTextField
  26                         'required' => false,
  27                 ];
  28
  29                 parent::__construct( $params );
  30         }
  31
  32         public function loadDataFromRequest( $request ) {
  33                 $value = $request->getText( $this->mName, $this->getDefault() );
  34
  35                 $titlesArray = explode( "\n", $value );
  36                 // Remove empty lines
  37                 $titlesArray = array_values( array_filter( $titlesArray, function ( $title ) {
  38                         return trim( $title ) !== '';
  39                 } ) );
  40                 // This function is expected to return a string
  41                 return implode( "\n", $titlesArray );
  42         }
  43
  44         public function validate( $value, $alldata ) {
  45                 if ( !$this->mParams['exists'] ) {
  46                         return true;
  47                 }
  48
  49                 if ( is_null( $value ) ) {
  50                         return false;
  51                 }
  52
  53                 // $value is a string, because HTMLForm fields store their values as strings
  54                 $titlesArray = explode( "\n", $value );
  55
  56                 if ( isset( $this->mParams['max'] ) ) {
  57                         if ( count( $titlesArray ) > $this->mParams['max'] ) {
  58                                 return $this->msg( 'htmlform-int-toohigh', $this->mParams['max'] );
  59                         }
  60                 }
  61
  62                 foreach ( $titlesArray as $title ) {
  63                         $result = parent::validate( $title, $alldata );
  64                         if ( $result !== true ) {
  65                                 return $result;
  66                         }
  67                 }
  68
  69                 return true;
  70         }
  71
  72         public function getInputHTML( $value ) {
  73                 $this->mParent->getOutput()->enableOOUI();
  74                 return $this->getInputOOUI( $value );
  75         }
  76
  77         public function getInputOOUI( $value ) {
  78                 $params = [
  79                         'id' => $this->mID,
  80                         'name' => $this->mName,
  81                         'dir' => $this->mDir,
  82                 ];
  83
  84                 if ( isset( $this->mParams['disabled'] ) ) {
  85                         $params['disabled'] = $this->mParams['disabled'];
  86                 }
  87
  88                 if ( isset( $this->mParams['default'] ) ) {
  89                         $params['default'] = $this->mParams['default'];
  90                 }
  91
  92                 if ( isset( $this->mParams['placeholder'] ) ) {
  93                         $params['placeholder'] = $this->mParams['placeholder'];
  94                 } else {
  95                         $params['placeholder'] = $this->msg( 'mw-widgets-titlesmultiselect-placeholder' )->plain();
  96                 }
  97
  98                 if ( isset( $this->mParams['max'] ) ) {
  99                         $params['tagLimit'] = $this->mParams['max'];
 100                 }
 101
 102                 if ( isset( $this->mParams['showMissing'] ) ) {
 103                         $params['showMissing'] = $this->mParams['showMissing'];
 104                 }
 105
 106                 if ( isset( $this->mParams['input'] ) ) {
 107                         $params['input'] = $this->mParams['input'];
 108                 }
 109
 110                 if ( !is_null( $value ) ) {
 111                         // $value is a string, but the widget expects an array
 112                         $params['default'] = $value === '' ? [] : explode( "\n", $value );
 113                 }
 114
 115                 // Make the field auto-infusable when it's used inside a legacy HTMLForm rather than OOUIHTMLForm
 116                 $params['infusable'] = true;
 117                 $params['classes'] = [ 'mw-htmlform-field-autoinfuse' ];
 118                 $widget = new TitlesMultiselectWidget( $params );
 119                 $widget->setAttributes( [ 'data-mw-modules' => implode( ',', $this->getOOUIModules() ) ] );
 120
 121                 return $widget;
 122         }
 123
 124         protected function shouldInfuseOOUI() {
 125                 return true;
 126         }
 127
 128         protected function getOOUIModules() {
 129                 return [ 'mediawiki.widgets.TitlesMultiselectWidget' ];
 130         }
 131
 132 }