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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\Math; |
| 4 | |
| 5 | use Exception; |
| 6 | use InvalidArgumentException; |
| 7 | use MediaWiki\Extension\Math\Widget\WikibaseEntitySelector; |
| 8 | use MediaWiki\Html\Html; |
| 9 | use MediaWiki\Logger\LoggerFactory; |
| 10 | use MediaWiki\MainConfigNames; |
| 11 | use MediaWiki\Message\Message; |
| 12 | use MediaWiki\Output\OutputPage; |
| 13 | use MediaWiki\SpecialPage\SpecialPage; |
| 14 | use OOUI\ButtonInputWidget; |
| 15 | use OOUI\FormLayout; |
| 16 | |
| 17 | class SpecialMathWikibase extends SpecialPage { |
| 18 | /** |
| 19 | * The parameter for this special page |
| 20 | */ |
| 21 | private const PARAMETER = "qid"; |
| 22 | |
| 23 | /** |
| 24 | * @var MathWikibaseConnector Wikibase connection |
| 25 | */ |
| 26 | private MathWikibaseConnector $wikibase; |
| 27 | |
| 28 | /** |
| 29 | * @var \Psr\Log\LoggerInterface |
| 30 | */ |
| 31 | private $logger; |
| 32 | |
| 33 | public function __construct( |
| 34 | MathWikibaseConnector $wikibase |
| 35 | ) { |
| 36 | parent::__construct( 'MathWikibase' ); |
| 37 | |
| 38 | $this->wikibase = $wikibase; |
| 39 | $this->logger = LoggerFactory::getInstance( 'Math' ); |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * @inheritDoc |
| 44 | */ |
| 45 | public function execute( $par ) { |
| 46 | $request = $this->getRequest(); |
| 47 | $output = $this->getOutput(); |
| 48 | $output->enableOOUI(); |
| 49 | |
| 50 | $this->setHeaders(); |
| 51 | $output->addModules( [ 'mw.widgets.MathWbEntitySelector' ] ); |
| 52 | |
| 53 | $output->setPageTitle( |
| 54 | $this->getPlainText( 'math-wikibase-header' ) |
| 55 | ); |
| 56 | |
| 57 | // Get request |
| 58 | $requestId = $request->getText( self::PARAMETER, $par ); |
| 59 | |
| 60 | // if there is no id requested, show the request form |
| 61 | if ( !$requestId ) { |
| 62 | $this->showForm(); |
| 63 | } else { |
| 64 | $this->logger->debug( "Request qID: " . $requestId ); |
| 65 | $languageCode = $this->getConfig()->get( MainConfigNames::LanguageCode ); |
| 66 | try { |
| 67 | $info = $this->wikibase->fetchWikibaseFromId( $requestId, $languageCode ); |
| 68 | $this->logger->debug( "Successfully fetched information for qID: " . $requestId ); |
| 69 | $this->buildPageRepresentation( $info, $requestId, $output ); |
| 70 | } catch ( Exception $e ) { |
| 71 | $this->showError( $e ); |
| 72 | } |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Shows the form to request information for a specific Wikibase id |
| 78 | */ |
| 79 | private function showForm() { |
| 80 | $actionField = new \OOUI\ActionFieldLayout( |
| 81 | new WikibaseEntitySelector( [ |
| 82 | 'name' => self::PARAMETER, |
| 83 | 'placeholder' => $this->getPlainText( 'math-wikibase-special-form-placeholder' ), |
| 84 | 'required' => true, |
| 85 | 'infusable' => true, |
| 86 | 'id' => 'wbEntitySelector' |
| 87 | ] ), |
| 88 | new ButtonInputWidget( [ |
| 89 | 'name' => 'request-qid', |
| 90 | 'label' => $this->getPlainText( 'math-wikibase-special-form-button' ), |
| 91 | 'type' => 'submit', |
| 92 | 'flags' => [ 'primary', 'progressive' ], |
| 93 | 'icon' => 'check', |
| 94 | ] ), |
| 95 | [ |
| 96 | 'label' => $this->getPlainText( 'math-wikibase-special-form-header' ), |
| 97 | 'align' => 'top' |
| 98 | ] |
| 99 | ); |
| 100 | |
| 101 | $formLayout = new FormLayout( [ |
| 102 | 'method' => 'POST', |
| 103 | 'items' => [ $actionField ] |
| 104 | ] ); |
| 105 | |
| 106 | $this->getOutput()->addHTML( $formLayout ); |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Shows an error message for the user and writes information to $logger |
| 111 | * @param Exception $e can potentially be any exception. |
| 112 | */ |
| 113 | private function showError( Exception $e ) { |
| 114 | $this->getOutput()->setPageTitle( |
| 115 | $this->getPlainText( 'math-wikibase-special-error-header' ) |
| 116 | ); |
| 117 | |
| 118 | if ( $e instanceof InvalidArgumentException ) { |
| 119 | $this->logger->warning( "An invalid ID was specified. Reason: " . $e->getMessage() ); |
| 120 | $this->getOutput()->addHTML( |
| 121 | $this->msg( 'math-wikibase-special-error-invalid-argument' )->inContentLanguage()->parse() |
| 122 | ); |
| 123 | } else { |
| 124 | $this->logger->error( "An unknown error occurred while fetching data from Wikibase.", [ |
| 125 | 'exception' => $e |
| 126 | ] ); |
| 127 | $this->getOutput()->addHTML( |
| 128 | $this->msg( 'math-wikibase-special-error-unknown' )->inContentLanguage()->parse() |
| 129 | ); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * Helper function to shorten i18n text processing |
| 135 | * @param string $key |
| 136 | * @return string the plain text in current content language |
| 137 | */ |
| 138 | private function getPlainText( $key ) { |
| 139 | return $this->msg( $key )->inContentLanguage()->plain(); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * @param MathWikibaseInfo $info |
| 144 | * @param string $qid |
| 145 | * @param OutputPage $output |
| 146 | */ |
| 147 | public function buildPageRepresentation( |
| 148 | MathWikibaseInfo $info, |
| 149 | $qid, |
| 150 | OutputPage $output |
| 151 | ) { |
| 152 | $output->setPageTitle( $info->getLabel() ); |
| 153 | |
| 154 | // if 'instance of' is specified, it can be found in the description before a colon |
| 155 | // FIXME: There are other reasons to have a colon in an Item's description, e.g. |
| 156 | // https://www.wikidata.org/wiki/Special:MathWikibase?qid=Q6203 |
| 157 | if ( preg_match( '/(.*):\s*(.*)/', $info->getDescription(), $matches ) ) { |
| 158 | $output->setSubtitle( $matches[1] ); |
| 159 | } |
| 160 | |
| 161 | // add formula information |
| 162 | $header = $this->msg( 'math-wikibase-formula-information' )->inContentLanguage() |
| 163 | ->plain(); |
| 164 | $output->addHTML( self::createHTMLHeader( $header ) ); |
| 165 | |
| 166 | if ( $info->getFormattedSymbol() ) { |
| 167 | $math = $info->getFormattedSymbol(); |
| 168 | $formulaInfo = new Message( 'math-wikibase-formula-header-format' ); |
| 169 | $formulaInfo->rawParams( |
| 170 | $this->msg( 'math-wikibase-formula' )->inContentLanguage(), |
| 171 | $math |
| 172 | ); |
| 173 | $output->addHTML( Html::rawElement( "p", [], $formulaInfo->inContentLanguage()->parse() ) ); |
| 174 | } |
| 175 | |
| 176 | $labelName = $this->msg( |
| 177 | 'math-wikibase-formula-header-format', |
| 178 | $this->msg( 'math-wikibase-formula-name' )->inContentLanguage(), |
| 179 | $info->getLabel() |
| 180 | )->inContentLanguage()->parse(); |
| 181 | $output->addHTML( Html::rawElement( "p", [], $labelName ) ); |
| 182 | |
| 183 | if ( isset( $matches[2] ) ) { |
| 184 | $labelType = $this->msg( |
| 185 | 'math-wikibase-formula-header-format', |
| 186 | $this->msg( 'math-wikibase-formula-type' )->inContentLanguage(), |
| 187 | $matches[1] |
| 188 | )->inContentLanguage()->parse(); |
| 189 | $output->addHTML( Html::rawElement( "p", [], $labelType ) ); |
| 190 | |
| 191 | $description = $matches[2]; |
| 192 | } else { |
| 193 | $description = $info->getDescription(); |
| 194 | } |
| 195 | $labelDesc = $this->msg( |
| 196 | 'math-wikibase-formula-header-format', |
| 197 | $this->msg( 'math-wikibase-formula-description' )->inContentLanguage(), |
| 198 | $description |
| 199 | )->inContentLanguage()->parse(); |
| 200 | $output->addHTML( Html::rawElement( "p", [], $labelDesc ) ); |
| 201 | |
| 202 | // add parts of formula |
| 203 | if ( $info->hasParts() ) { |
| 204 | $elementsHeader = $this->msg( 'math-wikibase-formula-elements-header' ) |
| 205 | ->inContentLanguage()->plain(); |
| 206 | $output->addHTML( self::createHTMLHeader( $elementsHeader ) ); |
| 207 | $output->addHTML( $info->generateTableOfParts() ); |
| 208 | } |
| 209 | |
| 210 | // add link information |
| 211 | $wikibaseHeader = $this->msg( |
| 212 | 'math-wikibase-formula-link-header', |
| 213 | $info->getDescription() |
| 214 | )->inContentLanguage()->plain(); |
| 215 | |
| 216 | $output->addHTML( self::createHTMLHeader( $wikibaseHeader ) ); |
| 217 | |
| 218 | $url = $this->wikibase->buildURL( $qid ); |
| 219 | $link = Html::linkButton( $url, [ "href" => $url ] ); |
| 220 | $output->addHTML( Html::rawElement( "p", [], $link ) ); |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * @param string $header Plain text |
| 225 | * @return string Raw HTML |
| 226 | */ |
| 227 | private static function createHTMLHeader( string $header ): string { |
| 228 | return Html::element( |
| 229 | 'h2', |
| 230 | [], |
| 231 | $header |
| 232 | ); |
| 233 | } |
| 234 | } |