├── teaser.png ├── teaser.xcf ├── teaser2.png ├── teaser2.xcf ├── wiki-16.png ├── wiki-48.png ├── wiki-128.png ├── .gitignore ├── wiki-mjax-16.png ├── wiki-mjax-48.png ├── wiki-mjax-128.png ├── .editorconfig ├── manifest.json ├── LICENSE.md ├── README.md ├── content.js ├── texvc.js └── jquery-1.12.4.min.js /teaser.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/teaser.png -------------------------------------------------------------------------------- /teaser.xcf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/teaser.xcf -------------------------------------------------------------------------------- /teaser2.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/teaser2.png -------------------------------------------------------------------------------- /teaser2.xcf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/teaser2.xcf -------------------------------------------------------------------------------- /wiki-16.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/wiki-16.png -------------------------------------------------------------------------------- /wiki-48.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/wiki-48.png -------------------------------------------------------------------------------- /wiki-128.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/wiki-128.png -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Ignore private keys 2 | 3 | *.pem 4 | 5 | # Temporary files 6 | *.*~ 7 | -------------------------------------------------------------------------------- /wiki-mjax-16.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/wiki-mjax-16.png -------------------------------------------------------------------------------- /wiki-mjax-48.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/wiki-mjax-48.png -------------------------------------------------------------------------------- /wiki-mjax-128.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bgromov/wiki-mathjax/HEAD/wiki-mjax-128.png -------------------------------------------------------------------------------- /.editorconfig: -------------------------------------------------------------------------------- 1 | # EditorConfig is awesome: http://EditorConfig.org 2 | 3 | # top-most EditorConfig file 4 | root = true 5 | 6 | # Windows-style newlines with a newline ending every file 7 | [*.{js,json}] 8 | indent_style = space 9 | indent_size = 2 10 | end_of_line = crlf 11 | charset = utf-8 12 | trim_trailing_whitespace = true 13 | insert_final_newline = true 14 | -------------------------------------------------------------------------------- /manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "manifest_version": 2, 3 | "name": "Wikipedia with MathJax (Development version)", 4 | "version": "0.0.13", 5 | 6 | "icons": { "16": "wiki-mjax-16.png", 7 | "48": "wiki-mjax-48.png", 8 | "128": "wiki-mjax-128.png" 9 | }, 10 | 11 | "description": "Renders Wikipedia equations with MathJax", 12 | "web_accessible_resources": ["texvc.js"], 13 | "content_scripts": [ 14 | { 15 | "matches": ["https://*.wikipedia.org/*", "https://*.wikibooks.org/*", "http://*.wikiwand.com/*", "https://*.wikiwand.com/*"], 16 | "js": ["jquery-1.12.4.min.js", "content.js"], 17 | "run_at": "document_end" 18 | } 19 | ] 20 | } 21 | -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | Software License Agreement (BSD License) 2 | 3 | Copyright (c) 2012-2013, Boris Gromov 4 | All rights reserved. 5 | 6 | Redistribution and use in source and binary forms, with or without 7 | modification, are permitted provided that the following conditions 8 | are met: 9 | 10 | * Redistributions of source code must retain the above copyright 11 | notice, this list of conditions and the following disclaimer. 12 | 13 | * Redistributions in binary form must reproduce the above 14 | copyright notice, this list of conditions and the following 15 | disclaimer in the documentation and/or other materials provided 16 | with the distribution. 17 | 18 | * Neither the name of the author nor the names of contributors may 19 | be used to endorse or promote products derived from this software 20 | without specific prior written permission. 21 | 22 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 25 | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 26 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 27 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 28 | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 29 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 30 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 | ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 | POSSIBILITY OF SUCH DAMAGE. 34 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Wikipedia with MathJax (Chrome extesion) 2 | ======================================== 3 | 4 | Extension replaces Wikipedia bitmap equations with HTML-CSS ones by re-rendering them with an open source [MathJax](http://mathjax.org/) library. In effect, this allows to scale Wikipedia pages without loosing in equation quality. 5 | 6 | Left-Click on equation to instantly zoom it to 200% (can be changed via MathJax menu). 7 | 8 | Right-Click on equation to show MathJax's context menu with additional options, e.g. "Scale All Math..." to instantly scale all equations on a page, "TeX commands" to see the source TeX equation etc. 9 | 10 | Extension is now published under [New BSD License](https://github.com/bgromov/wiki-mathjax/blob/master/LICENSE.md) with the source code available [here](https://github.com/bgromov/wiki-mathjax). 11 | 12 | For bug reports and feature requests, please use [Issue tracker](https://github.com/bgromov/wiki-mathjax/issues). 13 | 14 | ### INSTALLATION: 15 | 16 | Official release available at [Chrome Web Store](https://chrome.google.com/webstore/detail/wikipedia-with-mathjax/fhomhkjcommffnlajeemenejemmegcmi). 17 | 18 | ### UPDATES: 19 | 20 | **v.0.0.13:** 21 | 22 | - Change MathJax CDN to CDNJS (Thanks to Lorenzo Cameroni and Peter Krautzberger). 23 | 24 | **v.0.0.12:** 25 | 26 | - Add support for chemical equations (Thanks to Jordan Wade). 27 | 28 | **v.0.0.11:** 29 | 30 | Improvements and bug fixes (Thanks to Lorenzo Cameroni): 31 | 32 | - Adapt to recent Wikimedia math engine changes. 33 | 34 | - Improve work-around for unbalanced braces bug on Wikiwand. 35 | 36 | - Add missed symbols to MathJax config. 37 | 38 | **v.0.0.10:** 39 | 40 | - Finally fix the problem with descriptive annotations for equations (some equations have textual descriptions instead of TeX code, perhaps for accessibility reasons). Now the math is loaded from corresponding source pages (edit pages). 41 | 42 | - Update jQuery to v1.12.3. Extension seems to work a bit better with Wikiwand now. 43 | 44 | **v.0.0.9:** 45 | 46 | - Add support for Wikiwand (wikiwand.com). Quick and hackish implementation, that tries to fix broken equations on Wikiwand pages. 47 | 48 | **v.0.0.8:** 49 | 50 | - Add support for WikiBooks (wikibooks.org). 51 | 52 | **v.0.0.7:** 53 | 54 | - Extension now uses official [Wikimedia MathJax config](https://git.wikimedia.org/blob/mediawiki%2Fextensions%2FMath.git/09aafb299242293272fecc64aeeeed16a00c2a0b/modules%2Fmediawiki-extensions%2Ftexvc.js). Still, there are some glitches, so the local copy is used for now. 55 | 56 | **v.0.0.6:** 57 | 58 | - Fix MathJax CDN URL (Thanks to Thomas Kriechbaumer). 59 | 60 | **v.0.0.5:** 61 | 62 | - Add MathJax *Preview* feature. For smoother user experience original images replaced only after MathJax typesetting is ready (Thanks to Peter Krautzberger). 63 | 64 | - Fix: by default MathJax using different from LaTeX `\color` macro. That makes certain equations unable to render (for example, see [Extended Kalman Filter](http://en.wikipedia.org/wiki/Extended_Kalman_filter#Discrete-time_predict_and_update_equations)). The problem is solved by MathJax' `color` extension. 65 | 66 | **v.0.0.4:** 67 | 68 | - Fix the fix: extension now works on secured (https) version of Wikipedia. 69 | 70 | **v.0.0.3:** 71 | 72 | - Fix: extension now works on secured (https) version of Wikipedia. 73 | 74 | **v.0.0.2:** 75 | 76 | - Now supports some non-standard LaTeX commands specific to Wikipedia markup language. 77 | 78 | - Inline equations are scaled down to 100% (previously were same as display equations, i.e. 125%). 79 | 80 | ### KNOWN ISSUES: 81 | - Some symbols may not render properly (instead, formula source is shown in red) if you are logged in to Wikipedia and the math rendering option is not set to 'LaTeX'. See [issue #20](https://github.com/bgromov/wiki-mathjax/issues/20) for details (Thanks to Florian Pfaff). 82 | 83 | - Symbols which are not a part of display equation, i.e. not typed in between ..., but right after it, will be displayed from the next line. This is along with LaTeX markup rules and won't be fixed. 84 | 85 | - **(Fixed)** Fraction bar is oversized on scaled pages in recent versions of Chrome (e.g. 21.0.1180.75), this is a bug in MathJax/Chrome and not related to extension. See [this](https://groups.google.com/forum/?fromgroups#!topic/mathjax-users/TWNUoKIaF4I%5B1-25%5D). 86 | -------------------------------------------------------------------------------- /content.js: -------------------------------------------------------------------------------- 1 | function compareRight(s1, s2) { 2 | var ln = Math.min(s1.length, s2.length); 3 | return s1.slice(-(ln)) === s2.slice(-(ln)); 4 | } 5 | 6 | var isWikiwand = compareRight(document.location.hostname, 'wikiwand.com'); 7 | 8 | function replaceUnbalancedBraces(text) { 9 | var stack = []; 10 | var ret = text.split(''); 11 | 12 | for (var i = 0; i < text.length; ++i) { 13 | if (text[i] == '\\') { 14 | // handle special cases such as \left( or \right) 15 | if (text.substring(i, Math.min(text.length, i + 5)) == '\\left') { 16 | i += 5; 17 | continue; 18 | } 19 | if (text.substring(i, Math.min(text.length, i + 6)) == '\\right') { 20 | i += 6; 21 | continue; 22 | } 23 | } else if (text[i] == '(') { 24 | stack.push(i); 25 | } else if (text[i] == ')') { 26 | if (stack.length) { 27 | stack.pop(); 28 | } else { 29 | ret[i] = '}'; 30 | // console.log('Found unbalanced brace'); 31 | } 32 | } 33 | } 34 | return ret.join(''); 35 | } 36 | 37 | // Load local texvc config 38 | var texvc_config = chrome.extension.getURL('texvc.js'); 39 | 40 | $.get(texvc_config, function (data) { 41 | $('script').first().after(''); 42 | }); 43 | 44 | // Common configuration for MathJax, different rendering mode will modify this before inject 45 | var commonConfig = { 46 | tex2jax : { 47 | inlineMath : [], 48 | displayMath : [], 49 | processRefs : false, 50 | processEnvironments : false 51 | }, 52 | displayAlign : "left", 53 | TeX : { 54 | extensions : ["color.js", "mhchem.js"], 55 | }, 56 | menuSettings : { 57 | zoom : "Click", 58 | zscale : "200%" 59 | }, 60 | MathZoom : { 61 | styles : { 62 | "#MathJax_Zoom" : { 63 | "background-color" : "#FFFFFF" 64 | } 65 | } 66 | } 67 | }; 68 | 69 | function setConfig (config) { 70 | var configScript = document.createElement("script"); 71 | configScript.type = "text/x-mathjax-config"; 72 | $(configScript).text(config); 73 | $("script").append(configScript); 74 | } 75 | 76 | function wikipediaPNG(images) { 77 | images.each(function() { 78 | var tex = this.alt; 79 | var script = document.createElement("script"); 80 | if ($(this).hasClass("mwe-math-fallback-image-display")) { 81 | script.type = "math/tex; mode=display"; 82 | } else { 83 | script.type = "math/tex"; 84 | } 85 | tex = (isWikiwand) ? replaceUnbalancedBraces(tex) : tex; 86 | $(script).text("\\displaystyle " + tex); 87 | $(this).after(script); 88 | var span = document.createElement("span"); 89 | span.className = "MathJax_Preview"; 90 | $(this).wrap(span); 91 | }); 92 | var config = commonConfig; 93 | // Disable fast Common-HTML preview (we already have PNG previews...) 94 | config.preview = "none"; 95 | config["CHTML-preview"] = { 96 | disabled: true 97 | }; 98 | setConfig("MathJax.Hub.Config(" + JSON.stringify(config) + ");"); 99 | } 100 | 101 | function wikipediaTextual(spans) { 102 | spans.each(function(){ 103 | var tex = $(this).text(); 104 | tex = tex.substring(1, tex.length - 2); 105 | tex = (isWikiwand) ? replaceUnbalancedBraces(tex) : tex; 106 | script = document.createElement("script"); 107 | if ($(this).hasClass("mwe-math-fallback-source-display")) { 108 | script.type = "math/tex; mode=display"; 109 | } else { 110 | script.type = "math/tex"; 111 | } 112 | this.className = "MathJax_Preview"; 113 | $(script).text("\\displaystyle " + tex); 114 | $(this).after(script); 115 | }); 116 | setConfig("MathJax.Hub.Config(" + JSON.stringify(commonConfig) + ");"); 117 | } 118 | 119 | function wikipediaMathML(mathML) { 120 | // get LaTeX source annotated inside MathML 121 | mathML.each(function(){ 122 | var img = $(this).parent().parent().find("img,meta"); 123 | var span = document.createElement("span"); 124 | span.className = "MathJax_Preview"; 125 | $(img).wrap(span); 126 | var tex = $(this).find("annotation").text(); 127 | tex = (isWikiwand) ? replaceUnbalancedBraces(tex) : tex; 128 | script = document.createElement("script"); 129 | if ($(this).parent().hasClass("mwe-math-fallback-source-display")) { 130 | script.type = "math/tex; mode=display"; 131 | } else { 132 | script.type = "math/tex"; 133 | } 134 | $(script).text(tex); 135 | $(this).parent().parent().append(script); 136 | }); 137 | var config = commonConfig; 138 | // Disable fast Common-HTML preview (now there are SVG/PNG previews...) 139 | config.preview = "none"; 140 | config["CHTML-preview"] = { 141 | disabled: true 142 | }; 143 | setConfig("MathJax.Hub.Config(" + JSON.stringify(config) + ");"); 144 | } 145 | 146 | // Load MathJax only if no one else (the webpage, another browser extension...) has already loaded it 147 | if (window.MathJax === undefined && (window.unsafeWindow === undefined || window.unsafeWindow.MathJax === undefined)) { 148 | var images = $("img.tex"); 149 | if (images.length > 0) { 150 | wikipediaPNG(images); 151 | } else { 152 | var mathML = $("math"); 153 | if (mathML.length > 0) { 154 | wikipediaMathML(mathML); 155 | } else { 156 | var spans = $("span.tex"); 157 | if (spans.length > 0) { 158 | wikipediaTextual(spans); 159 | } 160 | } 161 | } 162 | } 163 | 164 | setTimeout(injectMathJax, isWikiwand ? 1500 : 0); 165 | 166 | function injectMathJax() { 167 | $('head').first().after(''); 168 | } -------------------------------------------------------------------------------- /texvc.js: -------------------------------------------------------------------------------- 1 | /** 2 | Adopted from: 3 | http://git.wikimedia.org/blob/mediawiki%2Fextensions%2FMath.git/241800f80d31aaac860b30acb010d45b78b875da/modules%2Fmediawiki-extensions%2Ftexvc.js 4 | 5 | Latest version: 6 | https://git.wikimedia.org/blob/mediawiki%2Fextensions%2FMath.git/HEAD/modules%2Fmediawiki-extensions%2Ftexvc.js 7 | */ 8 | 9 | /** 10 | * From https://en.wikipedia.org/wiki/User:Nageh/mathJax/config/TeX-AMS-texvc_HTML.js 11 | */ 12 | /* global MathJax:true */ 13 | 14 | MathJax.Hub.Register.StartupHook('TeX Jax Ready',function () { 15 | 16 | var MML = MathJax.ElementJax.mml; 17 | 18 | MathJax.Hub.Insert(MathJax.InputJax.TeX.Definitions,{ 19 | 20 | mathchar0mi: { 21 | // Lowercase Greek letters 22 | thetasym: '03B8', // theta 23 | koppa: '03DF', 24 | stigma: '03DB', 25 | coppa: '03D9', // archaic koppa 26 | 27 | // Ord symbols 28 | C: ['0043',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 29 | cnums: ['0043',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 30 | Complex: ['0043',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 31 | H: ['210D',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 32 | N: ['004E',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 33 | natnums: ['004E',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 34 | Q: ['0051',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 35 | R: ['0052',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 36 | reals: ['0052',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 37 | Reals: ['0052',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 38 | Z: ['005A',{mathvariant: MML.VARIANT.DOUBLESTRUCK}], 39 | sect: '00A7', // S 40 | P: '00B6', 41 | AA: ['00C5',{mathvariant: MML.VARIANT.NORMAL}], // Å, used for Angstrom 42 | alef: ['2135',{mathvariant: MML.VARIANT.NORMAL}], // aleph 43 | alefsym: ['2135',{mathvariant: MML.VARIANT.NORMAL}], // aleph 44 | weierp: ['2118',{mathvariant: MML.VARIANT.NORMAL}], // wp 45 | real: ['211C',{mathvariant: MML.VARIANT.NORMAL}], // Re 46 | part: ['2202',{mathvariant: MML.VARIANT.NORMAL}], // partial 47 | infin: ['221E',{mathvariant: MML.VARIANT.NORMAL}], // infty 48 | empty: ['2205',{mathvariant: MML.VARIANT.NORMAL}], // emptyset 49 | O: ['2205',{mathvariant: MML.VARIANT.NORMAL}], // emptyset (but should probably be Swedish O) 50 | ang: ['2220',{mathvariant: MML.VARIANT.NORMAL}], // angle 51 | exist: ['2203',{mathvariant: MML.VARIANT.NORMAL}], // exists 52 | clubs: ['2663',{mathvariant: MML.VARIANT.NORMAL}], // clubsuit 53 | diamonds: ['2662',{mathvariant: MML.VARIANT.NORMAL}], // diamondsuit 54 | hearts: ['2661',{mathvariant: MML.VARIANT.NORMAL}], // heartsuit 55 | spades: ['2660',{mathvariant: MML.VARIANT.NORMAL}], // spadesuit 56 | textvisiblespace: '2423', 57 | euro: ['20AC',{mathvariant: MML.VARIANT.NORMAL}], // euro sign 58 | geneuro: ['20AC',{mathvariant: MML.VARIANT.NORMAL}], 59 | geneuronarrow:['20AC',{mathvariant: MML.VARIANT.NORMAL}], 60 | geneurowide: ['20AC',{mathvariant: MML.VARIANT.NORMAL}], 61 | officialeuro: ['20AC',{mathvariant: MML.VARIANT.NORMAL}] 62 | }, 63 | 64 | mathchar0mo: { 65 | // Binary operators 66 | and: '2227', // land 67 | or: '2228', // lor 68 | bull: '2219', // bullet 69 | plusmn: '00B1', // pm 70 | sdot: '22C5', // cdot 71 | 72 | // Binary relations 73 | sup: '2283', // supset 74 | sub: '2282', // subset 75 | supe: '2287', // supseteq 76 | sube: '2286', // subseteq 77 | isin: '2208', // in 78 | 79 | hAar: '21D4', // Leftrightarrow [sic] 80 | hArr: '21D4', // Leftrightarrow 81 | Harr: '21D4', // Leftrightarrow 82 | Lrarr: '21D4', // Leftrightarrow 83 | lrArr: '21D4', // Leftrightarrow 84 | lArr: '21D0', // Leftarrow 85 | Larr: '21D0', // Leftarrow 86 | rArr: '21D2', // Rightarrow 87 | Rarr: '21D2', // Rightarrow 88 | harr: '2194', // leftrightarrow 89 | lrarr: '2194', // leftrightarrow 90 | larr: '2190', // leftarrow 91 | gets: '2190', // leftarrow 92 | rarr: '2192', // rightarrow 93 | 94 | // big ops 95 | oiint: ['222F',{texClass: MML.TEXCLASS.OP}], // not part of texvc but nice to have 96 | oiiint: ['2230',{texClass: MML.TEXCLASS.OP}] 97 | }, 98 | 99 | mathchar7: { 100 | // Uppercase Greek letters 101 | Alpha: '0391', 102 | Beta: '0392', 103 | Epsilon: '0395', 104 | Zeta: '0396', 105 | Eta: '0397', 106 | Iota: '0399', 107 | Kappa: '039A', 108 | Mu: '039C', 109 | Nu: '039D', 110 | Omicron: '039F', 111 | Rho: '03A1', 112 | Tau: '03A4', 113 | Chi: '03A7', 114 | 115 | Koppa: '03DE', 116 | Stigma: '03DA', 117 | Coppa: '03D8', // archaic Koppa 118 | Digamma: '03DC' 119 | }, 120 | 121 | delimiter: { 122 | '\\uarr': '2191', // uparrow 123 | '\\darr': '2193', // downarrow 124 | '\\Uarr': '21D1', // Uparrow 125 | '\\uArr': '21D1', // Uparrow 126 | '\\Darr': '21D3', // Downarrow 127 | '\\dArr': '21D3', // Downarrow 128 | '\\rang': '27E9', // rangle 129 | '\\lang': '27E8' // langle 130 | }, 131 | 132 | macros: { 133 | sgn: 'NamedFn', 134 | arccot: 'NamedFn', 135 | arcsec: 'NamedFn', 136 | arccsc: 'NamedFn', 137 | bold: ['Macro','\\mathbf{#1}',1], // boldsymbol 138 | href: 'NamedFn', // disable dangerous command 139 | style: 'NamedFn', // disable dangerous command 140 | pagecolor: ['Macro','',1], // ignore \pagecolor{} 141 | vline: ['Macro','\\smash{\\large\\lvert}',0], 142 | image: ['Macro','\\Im'] 143 | } 144 | 145 | }); 146 | }); 147 | -------------------------------------------------------------------------------- /jquery-1.12.4.min.js: 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