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| 1 | <?php |
| 2 | namespace MediaWiki\Extension\MathSearch\Wikidata\MathML; |
| 3 | |
| 4 | use DataValues\StringValue; |
| 5 | use Html; |
| 6 | use ValueFormatters\Exceptions\MismatchingDataValueTypeException; |
| 7 | use ValueFormatters\ValueFormatter; |
| 8 | use Wikibase\Lib\Formatters\SnakFormatter; |
| 9 | |
| 10 | /* |
| 11 | * Formats the tex string based on the known formats |
| 12 | * * text/plain: used in the value input field of Wikidata |
| 13 | * * text/x-wiki: wikitext |
| 14 | * * text/html: used in Wikidata to display the value of properties |
| 15 | * Formats can look like this: "text/html; disposition=diff" |
| 16 | * or just "text/plain" |
| 17 | */ |
| 18 | |
| 19 | class MathMLFormatter implements ValueFormatter { |
| 20 | |
| 21 | /** |
| 22 | * @var string One of the SnakFormatter::FORMAT_... constants. |
| 23 | */ |
| 24 | private $format; |
| 25 | |
| 26 | /** |
| 27 | * Loads format to distinguish the type of formatting |
| 28 | * |
| 29 | * @param string $format One of the SnakFormatter::FORMAT_... constants. |
| 30 | */ |
| 31 | public function __construct( $format ) { |
| 32 | $this->format = $format; |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * @param StringValue $value |
| 37 | * |
| 38 | * @return string |
| 39 | * @throws MismatchingDataValueTypeException |
| 40 | */ |
| 41 | public function format( $value ) { |
| 42 | if ( !( $value instanceof StringValue ) ) { |
| 43 | throw new InvalidArgumentException( '$value must be a StringValue' ); |
| 44 | } |
| 45 | |
| 46 | $mml = $value->getValue(); |
| 47 | |
| 48 | switch ( $this->format ) { |
| 49 | case SnakFormatter::FORMAT_WIKI: |
| 50 | return "<math type='pmml'>$mml</math>"; |
| 51 | case SnakFormatter::FORMAT_HTML_DIFF: |
| 52 | return Html::rawElement( 'h4', |
| 53 | [ 'class' => 'wb-details wb-math-details wb-math-rendered' ], $mml ) . |
| 54 | Html::rawElement( 'div', [ 'class' => 'wb-details wb-math-details' ], |
| 55 | Html::element( 'code', [], $mml ) ); |
| 56 | default: |
| 57 | return $mml; |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * @return string One of the SnakFormatter::FORMAT_... constants. |
| 63 | */ |
| 64 | public function getFormat() { |
| 65 | return $this->format; |
| 66 | } |
| 67 | |
| 68 | } |