c61b8becac
While the combination of all redering modes, might be useful for some power users it will confuse the average user and makes bug reporting harder. Therefore, source rendering on the server side is used when MathJax is enabled on the client side. Change-Id: I05a20d7c2298115dbf0429db6c107e8132cc15ff
288 lines
8.3 KiB
PHP
288 lines
8.3 KiB
PHP
<?php
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/**
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* MediaWiki math extension
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*
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* (c) 2002-2014 various MediaWiki contributors
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* GPLv2 license; info in main package.
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*/
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class MathHooks {
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const mathCacheKey = 'math=';
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/*
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* Generate a user dependent hash cache key.
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* The hash key depends on the rendering mode.
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* @param &$confstr The to-be-hashed key string that is being constructed
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* @param User $user reference to the current user
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* @param array &$forOptions userOptions used on that page
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*/
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public static function onPageRenderingHash( &$confstr, $user = false, &$forOptions = array() ) {
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global $wgUser;
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// To be independent of the MediaWiki core version,
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// we check if the core caching logic for math is still available.
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if ( ! is_callable( 'ParserOptions::getMath' ) && in_array( 'math', $forOptions ) ) {
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if ( $user === false ) {
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$user = $wgUser;
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}
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$mathOption = $user->getOption( 'math' );
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// Check if the key already contains the math option part
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if (
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!preg_match(
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'/(^|!)' . self::mathCacheKey . $mathOption . '(!|$)/',
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$confstr
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)
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) {
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// The math part of cache key starts with "math=" followed by a star or a number for the math mode
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// and the optional letter j that indicates if clientside MathJax rendering is used.
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if ( preg_match( '/(^|!)' . self::mathCacheKey . '[*\d]m?(!|$)/', $confstr ) ) {
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$confstr = preg_replace(
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'/(^|!)' . self::mathCacheKey . '[*\d]m?(!|$)/',
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'\1' . self::mathCacheKey . $mathOption . '\2',
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$confstr
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);
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} else {
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$confstr .= '!' . self::mathCacheKey . $mathOption;
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}
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wfDebugLog( 'Math', "New cache key: $confstr" );
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} else {
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wfDebugLog( 'Math', "Cache key found $confstr" );
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}
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}
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return true;
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}
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/**
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* Set up $wgMathPath and $wgMathDirectory globals if they're not already set.
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*/
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static function setup() {
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global $wgMathPath, $wgMathDirectory,
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$wgUploadPath, $wgUploadDirectory;
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if ( $wgMathPath === false ) {
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$wgMathPath = "{$wgUploadPath}/math";
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}
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if ( $wgMathDirectory === false ) {
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$wgMathDirectory = "{$wgUploadDirectory}/math";
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}
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}
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/**
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* Register the <math> tag with the Parser.
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*
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* @param $parser Parser instance of Parser
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* @return Boolean: true
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*/
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static function onParserFirstCallInit( $parser ) {
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$parser->setHook( 'math', array( 'MathHooks', 'mathTagHook' ) );
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return true;
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}
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/**
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* Callback function for the <math> parser hook.
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*
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* @param $content (the LaTeX input)
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* @param $attributes
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* @param Parser $parser
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* @return array
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*/
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static function mathTagHook( $content, $attributes, $parser ) {
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global $wgMathDisableTexFilter;
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if ( trim( $content ) === '' ) { // bug 8372
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return '';
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}
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wfProfileIn( __METHOD__ );
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$mode = (int)$parser->getUser()->getOption( 'math' );
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// Indicate that this page uses math.
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// This affects the page caching behavior.
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if ( is_callable( 'ParserOptions::getMath' ) ) {
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$parser->getOptions()->getMath();
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} else {
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$parser->getOptions()->optionUsed( 'math' );
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}
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$renderer = MathRenderer::getRenderer( $content, $attributes, $mode );
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$checkResult = $renderer->checkTex();
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if ( $checkResult !== true ) {
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// Returns the error message
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return $renderer->getLastError();
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}
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if ( $renderer->render() ) {
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wfDebugLog( "Math" , "Rendering successful. Writing output" );
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$renderedMath = $renderer->getHtmlOutput();
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} else {
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wfDebugLog( "Math" , "Rendering failed. Printing error message." );
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return $renderer->getLastError();
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}
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wfRunHooks( 'MathFormulaRendered',
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array( &$renderer,
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&$renderedMath,
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$parser->getTitle()->getArticleID(),
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$parser->nextLinkID() ) );// Enables indexing of math formula
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if ( $mode == MW_MATH_MATHJAX || $mode == MW_MATH_LATEXML_JAX ) {
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$parser->getOutput()->addModules( array( 'ext.math.mathjax.enabler' ) );
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}
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$parser->getOutput()->addModuleStyles( array( 'ext.math.styles' ) );
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if ( $mode == MW_MATH_MATHML ) {
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$parser->getOutput()->addModules( array( 'ext.math.scripts' ) );
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}
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// Writes cache if rendering was successful
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$renderer->writeCache();
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wfProfileOut( __METHOD__ );
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return array( $renderedMath, "markerType" => 'nowiki' );
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}
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/**
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* Add the new math rendering options to Special:Preferences.
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*
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* @param $user Object: current User object
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* @param $defaultPreferences Object: Preferences object
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* @return Boolean: true
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*/
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static function onGetPreferences( $user, &$defaultPreferences ) {
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global $wgMathValidModes, $wgDefaultUserOptions;
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$defaultPreferences['math'] = array(
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'type' => 'radio',
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'options' => array_flip( self::getMathNames() ),
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'label' => ' ',
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'section' => 'rendering/math',
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);
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// If the default option is not in the valid options the
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// user interface throws an exception (BUG 64844)
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if ( ! in_array( $wgDefaultUserOptions['math'] , $wgMathValidModes ) ){
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wfDebugLog( 'Math', "Warning: Misconfiguration \$wgDefaultUserOptions['math'] is not in \$wgMathValidModes. Please check your LocalSetting.php file.");
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// Display the checkbox in the first option.
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$wgDefaultUserOptions['math'] = $wgMathValidModes[0];
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}
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return true;
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}
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/**
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* List of message keys for the various math output settings.
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*
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* @return array of strings
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*/
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public static function getMathNames() {
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global $wgMathValidModes;
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$MathConstantNames = array(
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MW_MATH_SOURCE => 'mw_math_source',
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MW_MATH_PNG => 'mw_math_png',
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MW_MATH_MATHML => 'mw_math_mathml',
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MW_MATH_LATEXML => 'mw_math_latexml',
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MW_MATH_LATEXML_JAX => 'mw_math_latexml_jax',
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MW_MATH_MATHJAX => 'mw_math_mathjax'
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);
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$names = array();
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foreach ( $wgMathValidModes as $mode ) {
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$names[$mode] = wfMessage( $MathConstantNames[$mode] )->escaped();
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}
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return $names;
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}
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/**
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* MaintenanceRefreshLinksInit handler; optimize settings for refreshLinks batch job.
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*
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* @param Maintenance $maint
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* @return boolean hook return code
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*/
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static function onMaintenanceRefreshLinksInit( $maint ) {
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global $wgUser;
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# Don't generate TeX PNGs (the lack of a sensible current directory causes errors anyway)
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$wgUser->setOption( 'math', MW_MATH_SOURCE );
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return true;
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}
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/**
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* LoadExtensionSchemaUpdates handler; set up math table on install/upgrade.
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*
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* @param $updater DatabaseUpdater
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* @throws MWException
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* @return bool
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*/
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static function onLoadExtensionSchemaUpdates( $updater = null ) {
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global $wgMathValidModes;
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if ( is_null( $updater ) ) {
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throw new MWException( 'Math extension is only necessary in 1.18 or above' );
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}
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$map = array( 'mysql', 'sqlite', 'postgres', 'oracle', 'mssql' );
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$type = $updater->getDB()->getType();
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if ( in_array( $type, $map ) ) {
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$sql = dirname( __FILE__ ) . '/db/math.' . $type . '.sql';
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$updater->addExtensionTable( 'math', $sql );
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if ( in_array( MW_MATH_LATEXML, $wgMathValidModes ) ) {
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if ( in_array( $type, array( 'mysql', 'sqlite', 'postgres' ) ) ) {
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$sql = dirname( __FILE__ ) . '/db/mathlatexml.' . $type . '.sql';
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$updater->addExtensionTable( 'mathlatexml', $sql );
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} else {
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throw new MWException( "Math extension does not currently support $type database for LaTeXML." );
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}
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}
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if ( in_array( MW_MATH_MATHML, $wgMathValidModes ) ) {
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if ( in_array( $type, array( 'mysql', 'sqlite', 'postgres' ) ) ) {
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$sql = dirname( __FILE__ ) . '/db/mathoid.' . $type . '.sql';
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$updater->addExtensionTable( 'mathoid', $sql );
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} else {
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throw new MWException( "Math extension does not currently support $type database for Mathoid." );
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}
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}
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} else {
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throw new MWException( "Math extension does not currently support $type database." );
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}
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return true;
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}
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/**
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* Add 'math' and 'mathlatexml' tables to the list of tables that need to be copied to
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* temporary tables for parser tests to run.
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*
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* @param array $tables
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* @return bool
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*/
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static function onParserTestTables( &$tables ) {
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$tables[] = 'math';
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$tables[] = 'mathlatexml';
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return true;
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}
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/**
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* Links to the unit test files for the test cases.
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*
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* @param string $files
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* @return boolean (true)
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*/
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static function onRegisterUnitTests( &$files ) {
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$testDir = __DIR__ . '/tests/';
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$files = array_merge( $files, glob( "$testDir/*Test.php" ) );
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return true;
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}
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/**
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*
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* @global type $wgOut
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* @param type $toolbar
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*/
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static function onEditPageBeforeEditToolbar( &$toolbar ) {
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global $wgOut;
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$wgOut->addModules( array( 'ext.math.editbutton.enabler' ) );
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}
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}
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