includes/htmlform/fields/HTMLCheckMatrix.php

   1 <?php
   2
   3 /**
   4  * A checkbox matrix
   5  * Operates similarly to HTMLMultiSelectField, but instead of using an array of
   6  * options, uses an array of rows and an array of columns to dynamically
   7  * construct a matrix of options. The tags used to identify a particular cell
   8  * are of the form "columnName-rowName"
   9  *
  10  * Options:
  11  *   - columns
  12  *     - Required list of columns in the matrix.
  13  *   - rows
  14  *     - Required list of rows in the matrix.
  15  *   - force-options-on
  16  *     - Accepts array of column-row tags to be displayed as enabled but unavailable to change
  17  *   - force-options-off
  18  *     - Accepts array of column-row tags to be displayed as disabled but unavailable to change.
  19  *   - tooltips
  20  *     - Optional array mapping row label to tooltip content
  21  *   - tooltip-class
  22  *     - Optional CSS class used on tooltip container span. Defaults to mw-icon-question.
  23  */
  24 class HTMLCheckMatrix extends HTMLFormField implements HTMLNestedFilterable {
  25         static private $requiredParams = [
  26                 // Required by underlying HTMLFormField
  27                 'fieldname',
  28                 // Required by HTMLCheckMatrix
  29                 'rows',
  30                 'columns'
  31         ];
  32
  33         public function __construct( $params ) {
  34                 $missing = array_diff( self::$requiredParams, array_keys( $params ) );
  35                 if ( $missing ) {
  36                         throw new HTMLFormFieldRequiredOptionsException( $this, $missing );
  37                 }
  38                 parent::__construct( $params );
  39         }
  40
  41         public function validate( $value, $alldata ) {
  42                 $rows = $this->mParams['rows'];
  43                 $columns = $this->mParams['columns'];
  44
  45                 // Make sure user-defined validation callback is run
  46                 $p = parent::validate( $value, $alldata );
  47                 if ( $p !== true ) {
  48                         return $p;
  49                 }
  50
  51                 // Make sure submitted value is an array
  52                 if ( !is_array( $value ) ) {
  53                         return false;
  54                 }
  55
  56                 // If all options are valid, array_intersect of the valid options
  57                 // and the provided options will return the provided options.
  58                 $validOptions = [];
  59                 foreach ( $rows as $rowTag ) {
  60                         foreach ( $columns as $columnTag ) {
  61                                 $validOptions[] = $columnTag . '-' . $rowTag;
  62                         }
  63                 }
  64                 $validValues = array_intersect( $value, $validOptions );
  65                 if ( count( $validValues ) == count( $value ) ) {
  66                         return true;
  67                 } else {
  68                         return $this->msg( 'htmlform-select-badoption' );
  69                 }
  70         }
  71
  72         /**
  73          * Build a table containing a matrix of checkbox options.
  74          * The value of each option is a combination of the row tag and column tag.
  75          * mParams['rows'] is an array with row labels as keys and row tags as values.
  76          * mParams['columns'] is an array with column labels as keys and column tags as values.
  77          *
  78          * @param array $value Array of the options that should be checked
  79          *
  80          * @return string
  81          */
  82         public function getInputHTML( $value ) {
  83                 $html = '';
  84                 $tableContents = '';
  85                 $rows = $this->mParams['rows'];
  86                 $columns = $this->mParams['columns'];
  87
  88                 $attribs = $this->getAttributes( [ 'disabled', 'tabindex' ] );
  89
  90                 // Build the column headers
  91                 $headerContents = Html::rawElement( 'td', [], '&#160;' );
  92                 foreach ( $columns as $columnLabel => $columnTag ) {
  93                         $headerContents .= Html::rawElement( 'td', [], $columnLabel );
  94                 }
  95                 $tableContents .= Html::rawElement( 'tr', [], "\n$headerContents\n" );
  96
  97                 $tooltipClass = 'mw-icon-question';
  98                 if ( isset( $this->mParams['tooltip-class'] ) ) {
  99                         $tooltipClass = $this->mParams['tooltip-class'];
 100                 }
 101
 102                 // Build the options matrix
 103                 foreach ( $rows as $rowLabel => $rowTag ) {
 104                         // Append tooltip if configured
 105                         if ( isset( $this->mParams['tooltips'][$rowLabel] ) ) {
 106                                 $tooltipAttribs = [
 107                                         'class' => "mw-htmlform-tooltip $tooltipClass",
 108                                         'title' => $this->mParams['tooltips'][$rowLabel],
 109                                         'aria-label' => $this->mParams['tooltips'][$rowLabel]
 110                                 ];
 111                                 $rowLabel .= ' ' . Html::element( 'span', $tooltipAttribs, '' );
 112                         }
 113                         $rowContents = Html::rawElement( 'td', [], $rowLabel );
 114                         foreach ( $columns as $columnTag ) {
 115                                 $thisTag = "$columnTag-$rowTag";
 116                                 // Construct the checkbox
 117                                 $thisAttribs = [
 118                                         'id' => "{$this->mID}-$thisTag",
 119                                         'value' => $thisTag,
 120                                 ];
 121                                 $checked = in_array( $thisTag, (array)$value, true );
 122                                 if ( $this->isTagForcedOff( $thisTag ) ) {
 123                                         $checked = false;
 124                                         $thisAttribs['disabled'] = 1;
 125                                         $thisAttribs['class'] = 'checkmatrix-forced checkmatrix-forced-off';
 126                                 } elseif ( $this->isTagForcedOn( $thisTag ) ) {
 127                                         $checked = true;
 128                                         $thisAttribs['disabled'] = 1;
 129                                         $thisAttribs['class'] = 'checkmatrix-forced checkmatrix-forced-on';
 130                                 }
 131
 132                                 $checkbox = $this->getOneCheckbox( $checked, $attribs + $thisAttribs );
 133
 134                                 $rowContents .= Html::rawElement(
 135                                         'td',
 136                                         [],
 137                                         $checkbox
 138                                 );
 139                         }
 140                         $tableContents .= Html::rawElement( 'tr', [], "\n$rowContents\n" );
 141                 }
 142
 143                 // Put it all in a table
 144                 $html .= Html::rawElement( 'table',
 145                                 [ 'class' => 'mw-htmlform-matrix' ],
 146                                 Html::rawElement( 'tbody', [], "\n$tableContents\n" ) ) . "\n";
 147
 148                 return $html;
 149         }
 150
 151         protected function getOneCheckbox( $checked, $attribs ) {
 152                 if ( $this->mParent instanceof OOUIHTMLForm ) {
 153                         return new OOUI\CheckboxInputWidget( [
 154                                 'name' => "{$this->mName}[]",
 155                                 'selected' => $checked,
 156                         ] + OOUI\Element::configFromHtmlAttributes(
 157                                 $attribs
 158                         ) );
 159                 } else {
 160                         $checkbox = Xml::check( "{$this->mName}[]", $checked, $attribs );
 161                         if ( $this->mParent->getConfig()->get( 'UseMediaWikiUIEverywhere' ) ) {
 162                                 $checkbox = Html::openElement( 'div', [ 'class' => 'mw-ui-checkbox' ] ) .
 163                                         $checkbox .
 164                                         Html::element( 'label', [ 'for' => $attribs['id'] ] ) .
 165                                         Html::closeElement( 'div' );
 166                         }
 167                         return $checkbox;
 168                 }
 169         }
 170
 171         protected function isTagForcedOff( $tag ) {
 172                 return isset( $this->mParams['force-options-off'] )
 173                         && in_array( $tag, $this->mParams['force-options-off'] );
 174         }
 175
 176         protected function isTagForcedOn( $tag ) {
 177                 return isset( $this->mParams['force-options-on'] )
 178                         && in_array( $tag, $this->mParams['force-options-on'] );
 179         }
 180
 181         /**
 182          * Get the complete table row for the input, including help text,
 183          * labels, and whatever.
 184          * We override this function since the label should always be on a separate
 185          * line above the options in the case of a checkbox matrix, i.e. it's always
 186          * a "vertical-label".
 187          *
 188          * @param string $value The value to set the input to
 189          *
 190          * @return string Complete HTML table row
 191          */
 192         public function getTableRow( $value ) {
 193                 list( $errors, $errorClass ) = $this->getErrorsAndErrorClass( $value );
 194                 $inputHtml = $this->getInputHTML( $value );
 195                 $fieldType = static::class;
 196                 $helptext = $this->getHelpTextHtmlTable( $this->getHelpText() );
 197                 $cellAttributes = [ 'colspan' => 2 ];
 198
 199                 $hideClass = '';
 200                 $hideAttributes = [];
 201                 if ( $this->mHideIf ) {
 202                         $hideAttributes['data-hide-if'] = FormatJson::encode( $this->mHideIf );
 203                         $hideClass = 'mw-htmlform-hide-if';
 204                 }
 205
 206                 $label = $this->getLabelHtml( $cellAttributes );
 207
 208                 $field = Html::rawElement(
 209                         'td',
 210                         [ 'class' => 'mw-input' ] + $cellAttributes,
 211                         $inputHtml . "\n$errors"
 212                 );
 213
 214                 $html = Html::rawElement( 'tr',
 215                         [ 'class' => "mw-htmlform-vertical-label $hideClass" ] + $hideAttributes,
 216                         $label );
 217                 $html .= Html::rawElement( 'tr',
 218                         [ 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass $hideClass" ] +
 219                                 $hideAttributes,
 220                         $field );
 221
 222                 return $html . $helptext;
 223         }
 224
 225         /**
 226          * @param WebRequest $request
 227          *
 228          * @return array
 229          */
 230         public function loadDataFromRequest( $request ) {
 231                 if ( $this->isSubmitAttempt( $request ) ) {
 232                         // Checkboxes are just not added to the request arrays if they're not checked,
 233                         // so it's perfectly possible for there not to be an entry at all
 234                         return $request->getArray( $this->mName, [] );
 235                 } else {
 236                         // That's ok, the user has not yet submitted the form, so show the defaults
 237                         return $this->getDefault();
 238                 }
 239         }
 240
 241         public function getDefault() {
 242                 if ( isset( $this->mDefault ) ) {
 243                         return $this->mDefault;
 244                 } else {
 245                         return [];
 246                 }
 247         }
 248
 249         public function filterDataForSubmit( $data ) {
 250                 $columns = HTMLFormField::flattenOptions( $this->mParams['columns'] );
 251                 $rows = HTMLFormField::flattenOptions( $this->mParams['rows'] );
 252                 $res = [];
 253                 foreach ( $columns as $column ) {
 254                         foreach ( $rows as $row ) {
 255                                 // Make sure option hasn't been forced
 256                                 $thisTag = "$column-$row";
 257                                 if ( $this->isTagForcedOff( $thisTag ) ) {
 258                                         $res[$thisTag] = false;
 259                                 } elseif ( $this->isTagForcedOn( $thisTag ) ) {
 260                                         $res[$thisTag] = true;
 261                                 } else {
 262                                         $res[$thisTag] = in_array( $thisTag, $data );
 263                                 }
 264                         }
 265                 }
 266
 267                 return $res;
 268         }
 269 }