protected $mDefault;
protected $mOptions = false;
protected $mOptionsLabelsNotFromMessage = false;
+ protected $mHideIf = null;
/**
* @var bool If true will generate an empty div element with no label
return call_user_func_array( $callback, $args );
}
+
+ /**
+ * Fetch a field value from $alldata for the closest field matching a given
+ * name.
+ *
+ * This is complex because it needs to handle array fields like the user
+ * would expect. The general algorithm is to look for $name as a sibling
+ * of $this, then a sibling of $this's parent, and so on. Keeping in mind
+ * that $name itself might be referencing an array.
+ *
+ * @param array $alldata
+ * @param string $name
+ * @return string
+ */
+ protected function getNearestFieldByName( $alldata, $name ) {
+ $tmp = $this->mName;
+ $thisKeys = array();
+ while ( preg_match( '/^(.+)\[([^\]]+)\]$/', $tmp, $m ) ) {
+ array_unshift( $thisKeys, $m[2] );
+ $tmp = $m[1];
+ }
+ if ( substr( $tmp, 0, 2 ) == 'wp' &&
+ !isset( $alldata[$tmp] ) &&
+ isset( $alldata[substr( $tmp, 2 )] )
+ ) {
+ // Adjust for name mangling.
+ $tmp = substr( $tmp, 2 );
+ }
+ array_unshift( $thisKeys, $tmp );
+
+ $tmp = $name;
+ $nameKeys = array();
+ while ( preg_match( '/^(.+)\[([^\]]+)\]$/', $tmp, $m ) ) {
+ array_unshift( $nameKeys, $m[2] );
+ $tmp = $m[1];
+ }
+ array_unshift( $nameKeys, $tmp );
+
+ $testValue = '';
+ for ( $i = count( $thisKeys ) - 1; $i >= 0; $i-- ) {
+ $keys = array_merge( array_slice( $thisKeys, 0, $i ), $nameKeys );
+ $data = $alldata;
+ while ( $keys ) {
+ $key = array_shift( $keys );
+ if ( !is_array( $data ) || !isset( $data[$key] ) ) {
+ continue 2;
+ }
+ $data = $data[$key];
+ }
+ $testValue = $data;
+ break;
+ }
+
+ return $testValue;
+ }
+
+ /**
+ * Helper function for isHidden to handle recursive data structures.
+ *
+ * @param array $alldata
+ * @param array $params
+ * @return boolean
+ */
+ protected function isHiddenRecurse( array $alldata, array $params ) {
+ $origParams = $params;
+ $op = array_shift( $params );
+
+ try {
+ switch ( $op ) {
+ case 'AND':
+ foreach ( $params as $i => $p ) {
+ if ( !is_array( $p ) ) {
+ throw new MWException(
+ "Expected array, found " . gettype( $p ) . " at index $i"
+ );
+ }
+ if ( !$this->isHiddenRecurse( $alldata, $p ) ) {
+ return false;
+ }
+ }
+ return true;
+
+ case 'OR':
+ foreach ( $params as $p ) {
+ if ( !is_array( $p ) ) {
+ throw new MWException(
+ "Expected array, found " . gettype( $p ) . " at index $i"
+ );
+ }
+ if ( $this->isHiddenRecurse( $alldata, $p ) ) {
+ return true;
+ }
+ }
+ return false;
+
+ case 'NAND':
+ foreach ( $params as $i => $p ) {
+ if ( !is_array( $p ) ) {
+ throw new MWException(
+ "Expected array, found " . gettype( $p ) . " at index $i"
+ );
+ }
+ if ( !$this->isHiddenRecurse( $alldata, $p ) ) {
+ return true;
+ }
+ }
+ return false;
+
+ case 'NOR':
+ foreach ( $params as $p ) {
+ if ( !is_array( $p ) ) {
+ throw new MWException(
+ "Expected array, found " . gettype( $p ) . " at index $i"
+ );
+ }
+ if ( $this->isHiddenRecurse( $alldata, $p ) ) {
+ return false;
+ }
+ }
+ return true;
+
+ case 'NOT':
+ if ( count( $params ) !== 1 ) {
+ throw new MWException( "NOT takes exactly one parameter" );
+ }
+ $p = $params[0];
+ if ( !is_array( $p ) ) {
+ throw new MWException(
+ "Expected array, found " . gettype( $p ) . " at index 0"
+ );
+ }
+ return !$this->isHiddenRecurse( $alldata, $p );
+
+ case '===':
+ case '!==':
+ if ( count( $params ) !== 2 ) {
+ throw new MWException( "$op takes exactly two parameters" );
+ }
+ list( $field, $value ) = $params;
+ if ( !is_string( $field ) || !is_string( $value ) ) {
+ throw new MWException( "Parameters for $op must be strings" );
+ }
+ $testValue = $this->getNearestFieldByName( $alldata, $field );
+ switch ( $op ) {
+ case '===':
+ return ( $value === $testValue );
+ case '!==':
+ return ( $value !== $testValue );
+ }
+
+ default:
+ throw new MWException( "Unknown operation" );
+ }
+ } catch ( MWException $ex ) {
+ throw new MWException(
+ "Invalid hide-if specification for $this->mName: " .
+ $ex->getMessage() . " in " . var_export( $origParams, true ),
+ 0, $ex
+ );
+ }
+ }
+
+ /**
+ * Test whether this field is supposed to be hidden, based on the values of
+ * the other form fields.
+ *
+ * @since 1.23
+ * @param array $alldata The data collected from the form
+ * @return bool
+ */
+ function isHidden( $alldata ) {
+ if ( !$this->mHideIf ) {
+ return false;
+ }
+
+ return $this->isHiddenRecurse( $alldata, $this->mHideIf );
+ }
+
/**
* Override this function to add specific validation checks on the
* field input. Don't forget to call parent::validate() to ensure
* @return bool|string true on success, or String error to display.
*/
function validate( $value, $alldata ) {
+ if ( $this->isHidden( $alldata ) ) {
+ return true;
+ }
+
if ( isset( $this->mParams['required'] )
&& $this->mParams['required'] !== false
&& $value === ''
if ( isset( $params['hidelabel'] ) ) {
$this->mShowEmptyLabels = false;
}
+
+ if ( isset( $params['hide-if'] ) ) {
+ $this->mHideIf = $params['hide-if'];
+ }
}
/**
$fieldType = get_class( $this );
$helptext = $this->getHelpTextHtmlTable( $this->getHelpText() );
$cellAttributes = array();
+ $rowAttributes = array();
+ $rowClasses = '';
if ( !empty( $this->mParams['vertical-label'] ) ) {
$cellAttributes['colspan'] = 2;
$inputHtml . "\n$errors"
);
+ if ( $this->mHideIf ) {
+ $rowAttributes['data-hide-if'] = FormatJson::encode( $this->mHideIf );
+ $rowClasses .= ' mw-htmlform-hide-if';
+ }
+
if ( $verticalLabel ) {
- $html = Html::rawElement( 'tr', array( 'class' => 'mw-htmlform-vertical-label' ), $label );
+ $html = Html::rawElement( 'tr',
+ $rowAttributes + array( 'class' => "mw-htmlform-vertical-label $rowClasses" ), $label );
$html .= Html::rawElement( 'tr',
- array( 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass" ),
+ $rowAttributes + array(
+ 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass $rowClasses"
+ ),
$field );
} else {
$html =
Html::rawElement( 'tr',
- array( 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass" ),
+ $rowAttributes + array(
+ 'class' => "mw-htmlform-field-$fieldType {$this->mClass} $errorClass $rowClasses"
+ ),
$label . $field );
}
if ( $this->mParent->isVForm() ) {
$divCssClasses[] = 'mw-ui-vform-div';
}
- $html = Html::rawElement( 'div', array( 'class' => $divCssClasses ), $label . $field );
+
+ $wrapperAttributes = array(
+ 'class' => $divCssClasses,
+ );
+ if ( $this->mHideIf ) {
+ $wrapperAttributes['data-hide-if'] = FormatJson::encode( $this->mHideIf );
+ $wrapperAttributes['class'][] = ' mw-htmlform-hide-if';
+ }
+ $html = Html::rawElement( 'div', $wrapperAttributes, $label . $field );
$html .= $helptext;
return $html;
return '';
}
+ $rowAttributes = array();
+ if ( $this->mHideIf ) {
+ $rowAttributes['data-hide-if'] = FormatJson::encode( $this->mHideIf );
+ $rowAttributes['class'] = 'mw-htmlform-hide-if';
+ }
+
$row = Html::rawElement( 'td', array( 'colspan' => 2, 'class' => 'htmlform-tip' ), $helptext );
- $row = Html::rawElement( 'tr', array(), $row );
+ $row = Html::rawElement( 'tr', $rowAttributes, $row );
return $row;
}
return '';
}
- $div = Html::rawElement( 'div', array( 'class' => 'htmlform-tip' ), $helptext );
+ $wrapperAttributes = array(
+ 'class' => 'htmlform-tip',
+ );
+ if ( $this->mHideIf ) {
+ $wrapperAttributes['data-hide-if'] = FormatJson::encode( $this->mHideIf );
+ $wrapperAttributes['class'] .= ' mw-htmlform-hide-if';
+ }
+ $div = Html::rawElement( 'div', $wrapperAttributes, $helptext );
return $div;
}
*/
( function ( mw, $ ) {
+ /**
+ * Helper function for hide-if to find the nearby form field.
+ *
+ * Find the closest match for the given name, "closest" being the minimum
+ * level of parents to go to find a form field matching the given name or
+ * ending in array keys matching the given name (e.g. "baz" matches
+ * "foo[bar][baz]").
+ *
+ * @param {jQuery} element
+ * @param {string} name
+ * @return {jQuery|null}
+ */
+ function hideIfGetField( $el, name ) {
+ var sel, $found, $p;
+
+ sel = '[name="' + name + '"],' +
+ '[name="wp' + name + '"],' +
+ '[name$="' + name.replace( /^([^\[]+)/, '[$1]' ) + '"]';
+ for ( $p = $el.parent(); $p.length > 0; $p = $p.parent() ) {
+ $found = $p.find( sel );
+ if ( $found.length > 0 ) {
+ return $found;
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Helper function for hide-if to return a test function and list of
+ * dependent fields for a hide-if specification.
+ *
+ * @param {jQuery} element
+ * @param {Array} hide-if spec
+ * @return {Array} 2 elements: jQuery of dependent fields, and test function
+ */
+ function hideIfParse( $el, spec ) {
+ var op, i, l, v, $field, $fields, func, funcs, getVal;
+
+ op = spec[0];
+ l = spec.length;
+ switch ( op ) {
+ case 'AND':
+ case 'OR':
+ case 'NAND':
+ case 'NOR':
+ funcs = [];
+ $fields = $();
+ for ( i = 1; i < l; i++ ) {
+ if ( !$.isArray( spec[i] ) ) {
+ throw new Error( op + ' parameters must be arrays' );
+ }
+ v = hideIfParse( $el, spec[i] );
+ $fields = $fields.add( v[0] );
+ funcs.push( v[1] );
+ }
+
+ l = funcs.length;
+ switch ( op ) {
+ case 'AND':
+ func = function () {
+ var i;
+ for ( i = 0; i < l; i++ ) {
+ if ( !funcs[i]() ) {
+ return false;
+ }
+ }
+ return true;
+ };
+ break;
+
+ case 'OR':
+ func = function () {
+ var i;
+ for ( i = 0; i < l; i++ ) {
+ if ( funcs[i]() ) {
+ return true;
+ }
+ }
+ return false;
+ };
+ break;
+
+ case 'NAND':
+ func = function () {
+ var i;
+ for ( i = 0; i < l; i++ ) {
+ if ( !funcs[i]() ) {
+ return true;
+ }
+ }
+ return false;
+ };
+ break;
+
+ case 'NOR':
+ func = function () {
+ var i;
+ for ( i = 0; i < l; i++ ) {
+ if ( funcs[i]() ) {
+ return false;
+ }
+ }
+ return true;
+ };
+ break;
+ }
+
+ return [ $fields, func ];
+
+ case 'NOT':
+ if ( l !== 2 ) {
+ throw new Error( 'NOT takes exactly one parameter' );
+ }
+ if ( !$.isArray( spec[1] ) ) {
+ throw new Error( 'NOT parameters must be arrays' );
+ }
+ v = hideIfParse( $el, spec[1] );
+ $fields = v[0];
+ func = v[1];
+ return [ $fields, function () {
+ return !func();
+ } ];
+
+ case '===':
+ case '!==':
+ if ( l !== 3 ) {
+ throw new Error( op + ' takes exactly two parameters' );
+ }
+ $field = hideIfGetField( $el, spec[1] );
+ if ( !$field ) {
+ return [ $(), function () {
+ return false;
+ } ];
+ }
+ v = spec[2];
+
+ if ( $field.first().attr( 'type' ) === 'radio' ||
+ $field.first().attr( 'type' ) === 'checkbox'
+ ) {
+ getVal = function () {
+ var $selected = $field.filter( ':checked' );
+ return $selected.length > 0 ? $selected.val() : '';
+ };
+ } else {
+ getVal = function () {
+ return $field.val();
+ };
+ }
+
+ switch ( op ) {
+ case '===':
+ func = function () {
+ return getVal() === v;
+ };
+ break;
+ case '!==':
+ func = function () {
+ return getVal() !== v;
+ };
+ break;
+ }
+
+ return [ $field, func ];
+
+ default:
+ throw new Error( 'Unrecognized operation \'' + op + '\'' );
+ }
+ }
+
/**
* jQuery plugin to fade or snap to visible state.
*
}
} );
+ // Set up hide-if elements
+ $( '.mw-htmlform-hide-if' ).each( function () {
+ var $el = $( this ),
+ spec = $el.data( 'hideIf' ),
+ v, $fields, test, func;
+
+ if ( !spec ) {
+ return;
+ }
+
+ v = hideIfParse( $el, spec );
+ $fields = v[0];
+ test = v[1];
+ func = function () {
+ if ( test() ) {
+ $el.hide();
+ } else {
+ $el.show();
+ }
+ };
+ $fields.change( func );
+ func();
+ } );
+
} );
function addMulti( $oldContainer, $container ) {