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<?php
namespace SMW\DataValues;
use MediaWiki\Parser\Sanitizer;
use SMW\Localizer\Localizer;
use SMW\Localizer\Message;
use SMWDataItem as DataItem;
use SMWDataValue as DataValue;
use SMWDIBoolean as DIBoolean;
/**
* This datavalue implements the handling of Boolean datavalues.
*
* @license GPL-2.0-or-later
* @since 2.4
*
* @author Markus Krötzsch
* @author mwjames
*/
class BooleanValue extends DataValue {
/**
* The text to write for "true" if a custom output format was set.
*
* @var string
*/
protected $trueCaption;
/**
* The text to write for "false" if a custom output format was set.
*
* @var string
*/
protected $falseCaption;
/**
* @param string $typeid
*/
public function __construct( $typeid = '' ) {
parent::__construct( $typeid );
}
/**
* @see DataValue::parseUserValue
*/
protected function parseUserValue( $value ) {
$value = trim( $value );
if ( $this->m_caption === false ) {
$this->m_caption = $value;
}
$this->m_dataitem = new DIBoolean(
$this->doParseBoolValue( $value )
);
}
/**
* @see DataValue::loadDataItem
*
* @param DataItem $dataItem
*
* @return bool
*/
protected function loadDataItem( DataItem $dataItem ) {
if ( $dataItem->getDIType() !== DataItem::TYPE_BOOLEAN ) {
return false;
}
$this->m_dataitem = $dataItem;
$this->m_caption = $this->getStandardCaption( true );
return true;
}
/**
* @see DataValue::setOutputFormat
*/
public function setOutputFormat( $formatstring ) {
if ( $formatstring == $this->m_outformat ) {
return;
}
unset( $this->trueCaption );
unset( $this->falseCaption );
if ( $formatstring === '' ) { // no format
// (unsetting the captions is exactly the right thing here)
} elseif ( strtolower( $formatstring ) == '-' ) { // "plain" format
$this->trueCaption = 'true';
$this->falseCaption = 'false';
} elseif ( strtolower( $formatstring ) == 'num' ) { // "numeric" format
$this->trueCaption = 1;
$this->falseCaption = 0;
} elseif ( strtolower( $formatstring ) == 'tick' ) { // "tick" format
$this->trueCaption = '✓';
$this->falseCaption = '✕';
} elseif ( strtolower( $formatstring ) == 'x' ) { // X format
$this->trueCaption = '<span style="font-family: sans-serif; ">X</span>';
$this->falseCaption = ' ';
} else { // format "truelabel, falselabel" (hopefully)
$captions = explode( ',', $formatstring, 2 );
if ( count( $captions ) == 2 ) {
// note: escaping needed to be safe; MW-sanitising would be an alternative
$this->trueCaption = Sanitizer::removeSomeTags( trim( $captions[0] ) );
$this->falseCaption = Sanitizer::removeSomeTags( trim( $captions[1] ) );
} // else: no format that is recognised, ignore
}
// Localized version
if ( strpos( $formatstring, 'LOCL' ) !== false ) {
$this->setLocalizedCaptions( $formatstring );
}
$this->m_caption = $this->getStandardCaption( true );
$this->m_outformat = $formatstring;
}
/**
* @see DataValue::getShortWikiText
*/
public function getShortWikiText( $linker = null ) {
return $this->m_caption;
}
/**
* @see DataValue::getShortHTMLText
*/
public function getShortHTMLText( $linker = null ) {
return $this->m_caption;
}
/**
* @see DataValue::getLongWikiText
*/
public function getLongWikiText( $linker = null ) {
return $this->isValid() ? $this->getStandardCaption( true ) : $this->getErrorText();
}
/**
* @see DataValue::getLongHTMLText
*/
public function getLongHTMLText( $linker = null ) {
return $this->isValid() ? $this->getStandardCaption( true ) : $this->getErrorText();
}
/**
* @see DataValue::getWikiValue
*/
public function getWikiValue() {
return $this->getFirstBooleanCaptionFrom(
$this->isValid() && $this->m_dataitem->getBoolean() ? 'smw_true_words' : 'smw_false_words',
Message::CONTENT_LANGUAGE
);
}
/**
* @since 1.6
*
* @return bool
*/
public function getBoolean() {
return !$this->isValid() ? false : $this->m_dataitem->getBoolean();
}
/**
* Get text for displaying the value of this property, or false if not
* valid.
*
* @param $useformat bool, true if the output format should be used, false if the returned text should be parsable
*
* @return string
*/
protected function getStandardCaption( $useformat ) {
if ( !$this->isValid() ) {
return false;
}
if ( $useformat && ( isset( $this->trueCaption ) ) ) {
return $this->m_dataitem->getBoolean() ? $this->trueCaption : $this->falseCaption;
}
return $this->getFirstBooleanCaptionFrom(
$this->m_dataitem->getBoolean() ? 'smw_true_words' : 'smw_false_words',
$this->getOption( 'content.language' )
);
}
private function doParseBoolValue( $value ) {
// Use either the global or page related content language
$contentLanguage = $this->getOption( 'content.language' );
$lcv = mb_strtolower( $value );
$boolvalue = false;
if ( $lcv === '1' ) {
$boolvalue = true;
} elseif ( $lcv === '0' ) {
$boolvalue = false;
} elseif ( in_array( $lcv, $this->getBooleanWordsFrom( 'smw_true_words', $contentLanguage, 'true' ), true ) ) {
$boolvalue = true;
} elseif ( in_array( $lcv, $this->getBooleanWordsFrom( 'smw_false_words', $contentLanguage, 'false' ), true ) ) {
$boolvalue = false;
} else {
$this->addErrorMsg(
[ 'smw_noboolean', $value ],
Message::TEXT
);
}
return $boolvalue;
}
private function setLocalizedCaptions( &$formatstring ) {
if ( !( $languageCode = Localizer::getLanguageCodeFrom( $formatstring ) ) ) {
$languageCode = $this->getOption( 'user.language' );
}
$this->trueCaption = $this->getFirstBooleanCaptionFrom(
'smw_true_words',
$languageCode
);
$this->falseCaption = $this->getFirstBooleanCaptionFrom(
'smw_false_words',
$languageCode
);
}
private function getFirstBooleanCaptionFrom( $msgKey, $languageCode = null ) {
$vals = $this->getBooleanWordsFrom(
$msgKey,
$languageCode
);
return reset( $vals );
}
private function getBooleanWordsFrom( $msgKey, $languageCode = null, $canonicalForm = null ) {
$vals = explode(
',',
Message::get( $msgKey, Message::TEXT, $languageCode )
);
if ( $canonicalForm !== null ) {
$vals[] = $canonicalForm;
}
return $vals;
}
}