2014-06-03 08:15:53 +00:00
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<?php
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/**
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* MediaWiki math extension
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*
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2018-04-13 14:18:16 +00:00
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* @copyright 2002-2015 various MediaWiki contributors
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* @license GPL-2.0-or-later
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2015-04-14 19:42:48 +00:00
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*/
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use MediaWiki\Logger\LoggerFactory;
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/**
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* Converts LaTeX to MathML using the mathoid-server
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2014-06-03 08:15:53 +00:00
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*/
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class MathMathML extends MathRenderer {
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2016-04-12 20:53:25 +00:00
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protected $defaultAllowedRootElements = [ 'math' ];
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protected $restbaseInputTypes = [ 'tex', 'inline-tex', 'chem' ];
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2018-05-18 17:08:51 +00:00
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protected $restbaseRenderingModes = [ 'mathml', 'png' ];
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2018-04-07 19:03:56 +00:00
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protected $allowedRootElements = [];
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2014-06-03 08:15:53 +00:00
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protected $hosts;
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2015-01-22 18:56:13 +00:00
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2017-08-09 20:56:07 +00:00
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/** @var bool if false MathML output is not validated */
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2014-06-03 08:15:53 +00:00
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private $XMLValidation = true;
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2017-07-10 09:40:12 +00:00
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/**
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* @var string|bool
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*/
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2015-12-01 22:51:22 +00:00
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private $svgPath = false;
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2017-07-10 09:40:12 +00:00
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2018-05-18 17:08:51 +00:00
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/** @var string|bool */
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private $pngPath = false;
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2016-01-31 21:11:39 +00:00
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private $mathoidStyle;
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2014-06-10 16:49:20 +00:00
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2016-04-12 20:53:25 +00:00
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public function __construct( $tex = '', $params = [] ) {
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2014-06-10 16:49:20 +00:00
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global $wgMathMathMLUrl;
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parent::__construct( $tex, $params );
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2015-07-22 22:10:46 +00:00
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$this->setMode( 'mathml' );
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2014-06-10 16:49:20 +00:00
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$this->hosts = $wgMathMathMLUrl;
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if ( isset( $params['type'] ) ) {
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if ( $params['type'] == 'pmml' ) {
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$this->inputType = 'pmml';
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$this->setMathml( '<math>' . $tex . '</math>' );
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} elseif ( $params['type'] == 'ascii' ) {
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$this->inputType = 'ascii';
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2017-06-20 07:11:57 +00:00
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} elseif ( $params['type'] == 'chem' ) {
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2016-01-29 13:05:54 +00:00
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$this->inputType = 'chem';
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2014-06-10 16:49:20 +00:00
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}
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}
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2016-01-29 16:50:32 +00:00
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if ( !isset( $params['display'] ) && $this->getMathStyle() == 'inlineDisplaystyle' ) {
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// default preserve the (broken) layout as it was
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$this->tex = '{\\displaystyle ' . $tex . '}';
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}
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2014-06-10 16:49:20 +00:00
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}
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2014-06-03 08:15:53 +00:00
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2018-05-15 15:50:08 +00:00
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public static function batchEvaluate( array $tags ) {
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2017-08-16 05:50:44 +00:00
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$rbis = [];
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foreach ( $tags as $key => $tag ) {
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/** @var MathRenderer $renderer */
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$renderer = $tag[0];
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$rbi = new MathRestbaseInterface( $renderer->getTex(), $renderer->getInputType() );
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$renderer->setRestbaseInterface( $rbi );
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$rbis[] = $rbi;
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}
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MathRestbaseInterface::batchEvaluate( $rbis );
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}
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2014-06-03 08:15:53 +00:00
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/**
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* Gets the allowed root elements the rendered math tag might have.
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*
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* @return array
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*/
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public function getAllowedRootElements() {
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if ( $this->allowedRootElements ) {
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return $this->allowedRootElements;
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} else {
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return $this->defaultAllowedRootElements;
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}
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}
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/**
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* Sets the XML validation.
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* If set to false the output of MathML is not validated.
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2017-08-09 20:56:07 +00:00
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* @param bool $validation
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2014-06-03 08:15:53 +00:00
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*/
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public function setXMLValidation( $validation = true ) {
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$this->XMLValidation = $validation;
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}
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/**
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* Sets the allowed root elements the rendered math tag might have.
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* An empty value indicates to use the default settings.
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* @param array $settings
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*/
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2014-06-10 09:57:24 +00:00
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public function setAllowedRootElements( $settings ) {
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2014-06-03 08:15:53 +00:00
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$this->allowedRootElements = $settings;
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}
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2017-08-09 20:56:07 +00:00
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/**
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2014-06-03 08:15:53 +00:00
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* @see MathRenderer::render()
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2017-08-09 20:56:07 +00:00
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* @param bool $forceReRendering
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* @return bool
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*/
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2014-06-03 08:15:53 +00:00
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public function render( $forceReRendering = false ) {
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2016-05-10 13:45:26 +00:00
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global $wgMathFullRestbaseURL;
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try {
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2016-06-02 14:30:48 +00:00
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if ( $forceReRendering ) {
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$this->setPurge( true );
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}
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2016-05-10 13:45:26 +00:00
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if ( in_array( $this->inputType, $this->restbaseInputTypes ) &&
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2018-05-18 17:08:51 +00:00
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in_array( $this->mode, $this->restbaseRenderingModes )
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2016-05-10 13:45:26 +00:00
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) {
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if ( !$this->rbi ) {
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$this->rbi =
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new MathRestbaseInterface( $this->getTex(), $this->getInputType() );
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2016-06-02 14:30:48 +00:00
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$this->rbi->setPurge( $this->isPurge() );
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2016-05-10 13:45:26 +00:00
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}
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$rbi = $this->rbi;
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if ( $rbi->getSuccess() ) {
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$this->mathml = $rbi->getMathML();
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$this->mathoidStyle = $rbi->getMathoidStyle();
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$this->svgPath = $rbi->getFullSvgUrl();
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2018-05-18 17:08:51 +00:00
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$this->pngPath = $rbi->getFullPngUrl();
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2016-05-10 13:45:26 +00:00
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} elseif ( $this->lastError === '' ) {
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$this->doCheck();
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}
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$this->changed = false;
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return $rbi->getSuccess();
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2015-12-01 22:51:22 +00:00
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}
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2016-05-10 13:45:26 +00:00
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if ( $this->renderingRequired() ) {
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return $this->doRender();
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}
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return true;
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} catch ( Exception $e ) {
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$this->lastError = $this->getError( 'math_mathoid_error',
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$wgMathFullRestbaseURL, $e->getMessage() );
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LoggerFactory::getInstance( 'Math' )->error( $e->getMessage(), [ $e, $this ] );
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return false;
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2014-06-03 08:15:53 +00:00
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}
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}
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/**
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* Helper function to checks if the math tag must be rendered.
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2017-08-09 20:56:07 +00:00
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* @return bool
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2014-06-03 08:15:53 +00:00
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*/
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private function renderingRequired() {
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2015-04-14 19:42:48 +00:00
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$logger = LoggerFactory::getInstance( 'Math' );
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2014-06-03 08:15:53 +00:00
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if ( $this->isPurge() ) {
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2015-03-18 17:28:34 +00:00
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$logger->debug( 'Rerendering was requested.' );
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2014-06-03 08:15:53 +00:00
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return true;
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} else {
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2014-09-06 01:55:54 +00:00
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$dbres = $this->isInDatabase();
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2014-06-03 08:15:53 +00:00
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if ( $dbres ) {
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if ( $this->isValidMathML( $this->getMathml() ) ) {
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2015-03-18 17:28:34 +00:00
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$logger->debug( 'Valid MathML entry found in database.' );
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2014-11-18 09:09:29 +00:00
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if ( $this->getSvg( 'cached' ) ) {
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2015-03-18 17:28:34 +00:00
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$logger->debug( 'SVG-fallback found in database.' );
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2014-06-10 16:49:20 +00:00
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return false;
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} else {
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2015-03-18 17:28:34 +00:00
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$logger->debug( 'SVG-fallback missing.' );
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2014-06-10 16:49:20 +00:00
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return true;
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}
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2014-06-03 08:15:53 +00:00
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} else {
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2015-03-18 17:28:34 +00:00
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$logger->debug( 'Malformatted entry found in database' );
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2014-06-03 08:15:53 +00:00
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return true;
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}
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} else {
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2015-03-18 17:28:34 +00:00
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$logger->debug( 'No entry found in database.' );
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2014-06-03 08:15:53 +00:00
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return true;
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}
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}
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}
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/**
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* Performs a HTTP Post request to the given host.
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* Uses $wgMathLaTeXMLTimeout as timeout.
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* Generates error messages on failure
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* @see Http::post()
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*
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* @global int $wgMathLaTeXMLTimeout
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* @param string $host
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* @param string $post the encoded post request
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2017-08-09 20:56:07 +00:00
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* @param mixed &$res the result
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* @param mixed &$error the formatted error message or null
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2014-06-03 08:15:53 +00:00
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* @param String $httpRequestClass class name of MWHttpRequest (needed for testing only)
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2017-07-26 20:43:39 +00:00
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* @return bool success
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2014-06-03 08:15:53 +00:00
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*/
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2015-09-21 16:14:01 +00:00
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public function makeRequest(
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$host, $post, &$res, &$error = '', $httpRequestClass = 'MWHttpRequest'
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) {
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2014-06-03 08:15:53 +00:00
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// TODO: Change the timeout mechanism.
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global $wgMathLaTeXMLTimeout;
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$error = '';
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$res = null;
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2014-06-10 16:49:20 +00:00
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if ( !$host ) {
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$host = self::pickHost();
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}
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if ( !$post ) {
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$this->getPostData();
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}
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2016-04-12 20:53:25 +00:00
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$options = [ 'method' => 'POST', 'postData' => $post, 'timeout' => $wgMathLaTeXMLTimeout ];
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2017-07-10 09:40:12 +00:00
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/** @var CurlHttpRequest|PhpHttpRequest $req the request object */
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2014-06-03 08:15:53 +00:00
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$req = $httpRequestClass::factory( $host, $options );
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$status = $req->execute();
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if ( $status->isGood() ) {
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$res = $req->getContent();
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return true;
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} else {
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if ( $status->hasMessage( 'http-timed-out' ) ) {
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$error = $this->getError( 'math_timeout', $this->getModeStr(), $host );
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$res = false;
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2016-04-12 20:53:25 +00:00
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LoggerFactory::getInstance( 'Math' )->warning( 'Timeout:' . var_export( [
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2015-03-16 19:51:16 +00:00
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'post' => $post,
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'host' => $host,
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'timeout' => $wgMathLaTeXMLTimeout
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2016-04-12 20:53:25 +00:00
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], true ) );
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2014-06-03 08:15:53 +00:00
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} else {
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// for any other unkonwn http error
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$errormsg = $status->getHtml();
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2015-03-16 19:51:16 +00:00
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$error =
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$this->getError( 'math_invalidresponse', $this->getModeStr(), $host, $errormsg,
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2017-07-10 09:48:18 +00:00
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$this->getModeStr() );
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2016-04-12 20:53:25 +00:00
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LoggerFactory::getInstance( 'Math' )->warning( 'NoResponse:' . var_export( [
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2015-03-16 19:51:16 +00:00
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'post' => $post,
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'host' => $host,
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'errormsg' => $errormsg
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2016-04-12 20:53:25 +00:00
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], true ) );
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2014-06-03 08:15:53 +00:00
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}
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return false;
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}
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}
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2014-06-10 16:49:20 +00:00
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/**
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2015-01-22 18:56:13 +00:00
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* Return a MathML daemon host.
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*
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* If more than one demon is available, one is chosen at random.
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*
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2014-06-10 16:49:20 +00:00
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* @return string
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*/
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protected function pickHost() {
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if ( is_array( $this->hosts ) ) {
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$host = array_rand( $this->hosts );
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2015-07-12 19:40:34 +00:00
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$this->hosts = $host; // Use the same host for this class instance
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2014-06-10 16:49:20 +00:00
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} else {
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$host = $this->hosts;
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}
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2015-04-14 19:42:48 +00:00
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LoggerFactory::getInstance( 'Math' )->debug( 'Picking host ' . $host );
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2014-06-10 16:49:20 +00:00
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return $host;
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}
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/**
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* Calculates the HTTP POST Data for the request. Depends on the settings
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* and the input string only.
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* @return string HTTP POST data
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2016-01-29 16:50:32 +00:00
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* @throws MWException
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2014-06-10 16:49:20 +00:00
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*/
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public function getPostData() {
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$input = $this->getTex();
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2015-03-16 19:51:16 +00:00
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if ( $this->inputType == 'pmml' ||
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2015-07-22 22:10:46 +00:00
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$this->getMode() == 'latexml' && $this->getMathml() ) {
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2014-06-10 16:49:20 +00:00
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$out = 'type=mml&q=' . rawurlencode( $this->getMathml() );
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} elseif ( $this->inputType == 'ascii' ) {
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$out = 'type=asciimath&q=' . rawurlencode( $input );
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} else {
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2015-12-01 22:51:22 +00:00
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throw new MWException( 'Internal error: Restbase should be used for tex rendering' );
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2014-06-10 16:49:20 +00:00
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}
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2015-04-14 19:42:48 +00:00
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LoggerFactory::getInstance( 'Math' )->debug( 'Get post data: ' . $out );
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2014-06-10 16:49:20 +00:00
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return $out;
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}
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/**
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* Does the actual web request to convert TeX to MathML.
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2017-07-26 20:43:39 +00:00
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* @return bool
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2014-06-10 16:49:20 +00:00
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*/
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protected function doRender() {
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2017-08-16 05:50:44 +00:00
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if ( $this->isEmpty() ) {
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2014-06-10 16:49:20 +00:00
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return false;
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}
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$res = '';
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$host = self::pickHost();
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$post = $this->getPostData();
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$this->lastError = '';
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$requestResult = $this->makeRequest( $host, $post, $res, $this->lastError );
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if ( $requestResult ) {
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$jsonResult = json_decode( $res );
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if ( $jsonResult && json_last_error() === JSON_ERROR_NONE ) {
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if ( $jsonResult->success ) {
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2015-01-24 14:53:24 +00:00
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return $this->processJsonResult( $jsonResult, $host );
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2014-06-10 16:49:20 +00:00
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} else {
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2014-08-28 15:57:53 +00:00
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if ( property_exists( $jsonResult, 'log' ) ) {
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$log = $jsonResult->log;
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} else {
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$log = wfMessage( 'math_unknown_error' )->inContentLanguage()->escaped();
|
|
|
|
}
|
|
|
|
$this->lastError = $this->getError( 'math_mathoid_error', $host, $log );
|
2015-04-14 19:42:48 +00:00
|
|
|
LoggerFactory::getInstance( 'Math' )->warning(
|
2016-04-12 20:53:25 +00:00
|
|
|
'Mathoid conversion error:' . var_export( [
|
2015-03-16 19:51:16 +00:00
|
|
|
'post' => $post,
|
|
|
|
'host' => $host,
|
|
|
|
'result' => $res
|
2016-04-12 20:53:25 +00:00
|
|
|
], true ) );
|
2014-06-10 16:49:20 +00:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
$this->lastError = $this->getError( 'math_invalidjson', $host );
|
2015-04-14 19:42:48 +00:00
|
|
|
LoggerFactory::getInstance( 'Math' )->error(
|
2016-04-12 20:53:25 +00:00
|
|
|
'MathML InvalidJSON:' . var_export( [
|
2015-03-16 19:51:16 +00:00
|
|
|
'post' => $post,
|
|
|
|
'host' => $host,
|
|
|
|
'res' => $res
|
2016-04-12 20:53:25 +00:00
|
|
|
], true ) );
|
2014-06-10 16:49:20 +00:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// Error message has already been set.
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-06-03 08:15:53 +00:00
|
|
|
/**
|
|
|
|
* Checks if the input is valid MathML,
|
|
|
|
* and if the root element has the name math
|
|
|
|
* @param string $XML
|
2017-07-26 20:43:39 +00:00
|
|
|
* @return bool
|
2014-06-03 08:15:53 +00:00
|
|
|
*/
|
|
|
|
public function isValidMathML( $XML ) {
|
|
|
|
$out = false;
|
|
|
|
if ( !$this->XMLValidation ) {
|
|
|
|
return true;
|
|
|
|
}
|
2015-02-20 00:22:46 +00:00
|
|
|
|
2014-06-03 08:15:53 +00:00
|
|
|
$xmlObject = new XmlTypeCheck( $XML, null, false );
|
|
|
|
if ( !$xmlObject->wellFormed ) {
|
2015-04-14 19:42:48 +00:00
|
|
|
LoggerFactory::getInstance( 'Math' )->error(
|
2015-03-18 17:28:34 +00:00
|
|
|
'XML validation error: ' . var_export( $XML, true ) );
|
2014-06-03 08:15:53 +00:00
|
|
|
} else {
|
|
|
|
$name = $xmlObject->getRootElement();
|
|
|
|
$elementSplit = explode( ':', $name );
|
2015-09-21 16:14:01 +00:00
|
|
|
if ( is_array( $elementSplit ) ) {
|
2014-06-03 08:15:53 +00:00
|
|
|
$localName = end( $elementSplit );
|
|
|
|
} else {
|
|
|
|
$localName = $name;
|
|
|
|
}
|
2015-09-21 16:14:01 +00:00
|
|
|
if ( in_array( $localName, $this->getAllowedRootElements() ) ) {
|
2014-06-03 08:15:53 +00:00
|
|
|
$out = true;
|
|
|
|
} else {
|
2015-04-14 19:42:48 +00:00
|
|
|
LoggerFactory::getInstance( 'Math' )->error( "Got wrong root element : $name" );
|
2014-06-03 08:15:53 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
return $out;
|
|
|
|
}
|
|
|
|
|
2014-06-10 16:49:20 +00:00
|
|
|
/**
|
2017-08-09 20:56:07 +00:00
|
|
|
* @param bool $noRender
|
2017-07-10 09:40:12 +00:00
|
|
|
* @return Title|string
|
2014-06-10 16:49:20 +00:00
|
|
|
*/
|
2014-10-11 14:13:04 +00:00
|
|
|
private function getFallbackImageUrl( $noRender = false ) {
|
2018-05-18 17:08:51 +00:00
|
|
|
if ( 'png' === $this->getMode() && $this->pngPath ) {
|
|
|
|
return $this->pngPath;
|
|
|
|
}
|
2015-12-01 22:51:22 +00:00
|
|
|
if ( $this->svgPath ) {
|
|
|
|
return $this->svgPath;
|
|
|
|
}
|
2016-04-12 20:53:25 +00:00
|
|
|
return SpecialPage::getTitleFor( 'MathShowImage' )->getLocalURL( [
|
2014-06-10 16:49:20 +00:00
|
|
|
'hash' => $this->getMd5(),
|
2014-10-11 14:13:04 +00:00
|
|
|
'mode' => $this->getMode(),
|
2016-04-12 20:53:25 +00:00
|
|
|
'noRender' => $noRender
|
|
|
|
]
|
2014-06-10 16:49:20 +00:00
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Helper function to correct the style information for a
|
|
|
|
* linked SVG image.
|
2017-08-09 20:56:07 +00:00
|
|
|
* @param string &$style current style information to be updated
|
2014-06-10 16:49:20 +00:00
|
|
|
*/
|
2016-04-13 12:30:48 +00:00
|
|
|
public function correctSvgStyle( &$style ) {
|
|
|
|
if ( preg_match( '/style="([^"]*)"/', $this->getSvg(), $styles ) ) {
|
2015-01-22 18:56:13 +00:00
|
|
|
$style .= ' ' . $styles[1]; // merge styles
|
2015-07-22 22:10:46 +00:00
|
|
|
if ( $this->getMathStyle() === 'display' ) {
|
2014-06-10 16:49:20 +00:00
|
|
|
// TODO: Improve style cleaning
|
2015-09-21 16:14:01 +00:00
|
|
|
$style = preg_replace(
|
|
|
|
'/margin\-(left|right)\:\s*\d+(\%|in|cm|mm|em|ex|pt|pc|px)\;/', '', $style
|
|
|
|
);
|
2014-06-10 16:49:20 +00:00
|
|
|
}
|
2016-04-13 12:30:48 +00:00
|
|
|
$style = trim( preg_replace( '/position:\s*absolute;\s*left:\s*0px;/', '', $style ),
|
|
|
|
"; \t\n\r\0\x0B" ) .'; ';
|
|
|
|
|
2014-06-03 08:15:53 +00:00
|
|
|
}
|
2014-07-09 11:32:28 +00:00
|
|
|
// TODO: Figure out if there is a way to construct
|
|
|
|
// a SVGReader from a string that represents the SVG
|
|
|
|
// content
|
2015-09-21 16:14:01 +00:00
|
|
|
if ( preg_match( "/height=\"(.*?)\"/", $this->getSvg(), $matches ) ) {
|
2015-01-22 18:56:13 +00:00
|
|
|
$style .= 'height: ' . $matches[1] . '; ';
|
2014-07-09 11:32:28 +00:00
|
|
|
}
|
|
|
|
if ( preg_match( "/width=\"(.*?)\"/", $this->getSvg(), $matches ) ) {
|
2015-01-22 18:56:13 +00:00
|
|
|
$style .= 'width: ' . $matches[1] . ';';
|
2014-07-09 11:32:28 +00:00
|
|
|
}
|
2014-06-03 08:15:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2014-06-10 16:49:20 +00:00
|
|
|
* Gets img tag for math image
|
2017-08-09 20:56:07 +00:00
|
|
|
* @param bool $noRender if true no rendering will be performed
|
2015-09-21 16:14:01 +00:00
|
|
|
* if the image is not stored in the database
|
2017-08-09 20:56:07 +00:00
|
|
|
* @param bool|string $classOverride if classOverride
|
2015-09-21 16:14:01 +00:00
|
|
|
* is false the class name will be calculated by getClassName
|
2014-06-10 16:49:20 +00:00
|
|
|
* @return string XML the image html tag
|
2014-06-03 08:15:53 +00:00
|
|
|
*/
|
2018-05-18 17:08:51 +00:00
|
|
|
protected function getFallbackImage( $noRender = false, $classOverride = false ) {
|
2016-06-02 10:12:32 +00:00
|
|
|
$attribs = [
|
|
|
|
'src' => $this->getFallbackImageUrl( $noRender )
|
|
|
|
];
|
2014-06-10 16:49:20 +00:00
|
|
|
if ( $classOverride === false ) { // $class = '' suppresses class attribute
|
2014-10-11 14:13:04 +00:00
|
|
|
$class = $this->getClassName( true );
|
2014-06-10 16:49:20 +00:00
|
|
|
} else {
|
2015-09-21 16:14:01 +00:00
|
|
|
$class = $classOverride;
|
2014-06-10 16:49:20 +00:00
|
|
|
}
|
2016-01-31 21:11:39 +00:00
|
|
|
if ( ! $this->mathoidStyle ) {
|
2016-04-13 12:30:48 +00:00
|
|
|
$this->correctSvgStyle( $this->mathoidStyle );
|
2016-01-31 21:11:39 +00:00
|
|
|
}
|
2015-09-21 16:14:01 +00:00
|
|
|
if ( $class ) {
|
|
|
|
$attribs['class'] = $class;
|
|
|
|
}
|
|
|
|
|
2018-04-23 13:34:35 +00:00
|
|
|
return Html::element( 'img', $this->getAttributes( 'span', $attribs, [
|
2016-06-02 10:12:32 +00:00
|
|
|
'aria-hidden' => 'true',
|
2016-06-06 16:03:24 +00:00
|
|
|
'style' => $this->mathoidStyle,
|
|
|
|
'alt' => $this->tex
|
2016-04-12 20:53:25 +00:00
|
|
|
] ) );
|
2014-06-03 08:15:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
protected function getMathTableName() {
|
|
|
|
return 'mathoid';
|
|
|
|
}
|
2015-09-21 16:14:01 +00:00
|
|
|
|
2014-06-05 21:06:43 +00:00
|
|
|
/**
|
|
|
|
* Calculates the default class name for a math element
|
2017-08-09 20:56:07 +00:00
|
|
|
* @param bool $fallback
|
2014-06-05 21:06:43 +00:00
|
|
|
* @return string the class name
|
|
|
|
*/
|
2014-10-11 14:13:04 +00:00
|
|
|
private function getClassName( $fallback = false ) {
|
2015-01-22 18:56:13 +00:00
|
|
|
$class = 'mwe-math-';
|
2014-06-05 21:06:43 +00:00
|
|
|
if ( $fallback ) {
|
2014-10-12 09:26:57 +00:00
|
|
|
$class .= 'fallback-image-';
|
2014-06-05 21:06:43 +00:00
|
|
|
} else {
|
|
|
|
$class .= 'mathml-';
|
|
|
|
}
|
2015-07-22 22:10:46 +00:00
|
|
|
if ( $this->getMathStyle() == 'display' ) {
|
2014-06-05 21:06:43 +00:00
|
|
|
$class .= 'display';
|
|
|
|
} else {
|
|
|
|
$class .= 'inline';
|
|
|
|
}
|
2015-09-21 16:14:01 +00:00
|
|
|
if ( !$fallback ) {
|
2014-10-10 10:38:23 +00:00
|
|
|
$class .= ' mwe-math-mathml-a11y';
|
|
|
|
}
|
2016-12-24 13:04:07 +00:00
|
|
|
return $class;
|
2014-06-05 21:06:43 +00:00
|
|
|
}
|
2015-09-21 16:14:01 +00:00
|
|
|
|
2014-06-05 21:06:43 +00:00
|
|
|
/**
|
|
|
|
* @return string Html output that is embedded in the page
|
|
|
|
*/
|
|
|
|
public function getHtmlOutput() {
|
2015-07-22 22:10:46 +00:00
|
|
|
if ( $this->getMathStyle() == 'display' ) {
|
2014-06-05 21:06:43 +00:00
|
|
|
$element = 'div';
|
|
|
|
} else {
|
|
|
|
$element = 'span';
|
|
|
|
}
|
2017-01-11 18:43:10 +00:00
|
|
|
$attribs = [ 'class' => 'mwe-math-element' ];
|
2014-06-10 16:49:20 +00:00
|
|
|
if ( $this->getID() !== '' ) {
|
|
|
|
$attribs['id'] = $this->getID();
|
|
|
|
}
|
2016-02-08 17:35:49 +00:00
|
|
|
$output = Html::openElement( $element, $attribs );
|
2014-06-05 21:06:43 +00:00
|
|
|
// MathML has to be wrapped into a div or span in order to be able to hide it.
|
2014-07-10 15:14:26 +00:00
|
|
|
// Remove displayStyle attributes set by the MathML converter
|
|
|
|
// (Beginning from Mathoid 0.2.5 block is the default layout.)
|
2015-09-21 16:14:01 +00:00
|
|
|
$mml = preg_replace(
|
|
|
|
'/(<math[^>]*)(display|mode)=["\'](inline|block)["\']/', '$1', $this->getMathml()
|
|
|
|
);
|
2015-07-22 22:10:46 +00:00
|
|
|
if ( $this->getMathStyle() == 'display' ) {
|
2014-06-05 21:06:43 +00:00
|
|
|
$mml = preg_replace( '/<math/', '<math display="block"', $mml );
|
|
|
|
}
|
2016-04-12 20:53:25 +00:00
|
|
|
$output .= Xml::tags( $element, [
|
2015-09-21 16:14:01 +00:00
|
|
|
'class' => $this->getClassName(), 'style' => 'display: none;'
|
2016-04-12 20:53:25 +00:00
|
|
|
], $mml );
|
2015-09-21 16:14:01 +00:00
|
|
|
$output .= $this->getFallbackImage();
|
2016-02-08 17:35:49 +00:00
|
|
|
$output .= Html::closeElement( $element );
|
2014-06-05 21:06:43 +00:00
|
|
|
return $output;
|
|
|
|
}
|
2014-06-10 16:49:20 +00:00
|
|
|
|
|
|
|
protected function dbOutArray() {
|
|
|
|
$out = parent::dbOutArray();
|
2015-09-21 16:14:01 +00:00
|
|
|
if ( $this->getMathTableName() == 'mathoid' ) {
|
2014-06-10 16:49:20 +00:00
|
|
|
$out['math_input'] = $out['math_inputtex'];
|
2015-09-21 16:14:01 +00:00
|
|
|
unset( $out['math_inputtex'] );
|
2014-06-10 16:49:20 +00:00
|
|
|
}
|
|
|
|
return $out;
|
|
|
|
}
|
|
|
|
|
|
|
|
protected function dbInArray() {
|
|
|
|
$out = parent::dbInArray();
|
2015-09-21 16:14:01 +00:00
|
|
|
if ( $this->getMathTableName() == 'mathoid' ) {
|
2016-04-12 20:53:25 +00:00
|
|
|
$out = array_diff( $out, [ 'math_inputtex' ] );
|
2014-06-10 16:49:20 +00:00
|
|
|
$out[] = 'math_input';
|
|
|
|
}
|
|
|
|
return $out;
|
|
|
|
}
|
2014-07-25 20:09:34 +00:00
|
|
|
|
|
|
|
protected function initializeFromDatabaseRow( $rpage ) {
|
|
|
|
// mathoid allows different input formats
|
|
|
|
// therefore the column name math_inputtex was changed to math_input
|
|
|
|
if ( $this->getMathTableName() == 'mathoid' && ! empty( $rpage->math_input ) ) {
|
|
|
|
$this->userInputTex = $rpage->math_input;
|
|
|
|
}
|
|
|
|
parent::initializeFromDatabaseRow( $rpage );
|
|
|
|
}
|
2015-01-24 14:53:24 +00:00
|
|
|
|
|
|
|
/**
|
2017-08-16 05:50:44 +00:00
|
|
|
* @param object $jsonResult json result
|
|
|
|
* @param string $host name
|
2015-01-24 14:53:24 +00:00
|
|
|
*
|
|
|
|
* @return bool
|
|
|
|
*/
|
2017-08-16 05:50:44 +00:00
|
|
|
protected function processJsonResult( $jsonResult, $host ) {
|
2015-07-22 22:10:46 +00:00
|
|
|
if ( $this->getMode() == 'latexml' || $this->inputType == 'pmml' ||
|
2015-01-24 14:53:24 +00:00
|
|
|
$this->isValidMathML( $jsonResult->mml )
|
|
|
|
) {
|
|
|
|
if ( isset( $jsonResult->svg ) ) {
|
|
|
|
$xmlObject = new XmlTypeCheck( $jsonResult->svg, null, false );
|
|
|
|
if ( !$xmlObject->wellFormed ) {
|
|
|
|
$this->lastError = $this->getError( 'math_invalidxml', $host );
|
|
|
|
return false;
|
|
|
|
} else {
|
|
|
|
$this->setSvg( $jsonResult->svg );
|
|
|
|
}
|
|
|
|
} else {
|
2015-04-14 19:42:48 +00:00
|
|
|
LoggerFactory::getInstance( 'Math' )->error(
|
2015-03-16 21:43:20 +00:00
|
|
|
'Missing SVG property in JSON result.' );
|
2015-01-24 14:53:24 +00:00
|
|
|
}
|
2015-07-22 22:10:46 +00:00
|
|
|
if ( $this->getMode() != 'latexml' && $this->inputType != 'pmml' ) {
|
2015-01-24 14:53:24 +00:00
|
|
|
$this->setMathml( $jsonResult->mml );
|
|
|
|
}
|
2017-02-01 03:54:07 +00:00
|
|
|
// Avoid PHP 7.1 warning from passing $this by reference
|
|
|
|
$renderer = $this;
|
2015-07-12 19:40:34 +00:00
|
|
|
Hooks::run( 'MathRenderingResultRetrieved',
|
2017-02-01 03:54:07 +00:00
|
|
|
[ &$renderer, &$jsonResult ] ); // Enables debugging of server results
|
2015-01-24 14:53:24 +00:00
|
|
|
return true;
|
|
|
|
} else {
|
|
|
|
$this->lastError = $this->getError( 'math_unknown_error', $host );
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
2017-08-16 05:50:44 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* @return bool
|
|
|
|
*/
|
|
|
|
protected function isEmpty() {
|
|
|
|
if ( $this->userInputTex === '' ) {
|
|
|
|
LoggerFactory::getInstance( 'Math' )
|
|
|
|
->debug( 'Rendering was requested, but no TeX string is specified.' );
|
|
|
|
$this->lastError = $this->getError( 'math_empty_tex' );
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
2014-07-09 11:32:28 +00:00
|
|
|
}
|