2914 lines
121 KiB
JavaScript
2914 lines
121 KiB
JavaScript
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/*************************************************************
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*
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* MathJax/jax/output/HTML-CSS/jax.js
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*
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* Implements the HTML-CSS OutputJax that displays mathematics
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* using HTML and CSS to position the characters from math fonts
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* in their proper locations.
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*
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* ---------------------------------------------------------------------
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*
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* Copyright (c) 2009-2013 The MathJax Consortium
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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(function (AJAX,HUB,HTMLCSS) {
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var MML, isMobile = HUB.Browser.isMobile;
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var MESSAGE = function () {
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var data = [].slice.call(arguments,0);
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data[0][0] = ["HTML-CSS",data[0][0]];
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return MathJax.Message.Set.apply(MathJax.Message,data);
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};
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var FONTTEST = MathJax.Object.Subclass({
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timeout: (isMobile? 15:8)*1000, // timeout for loading web fonts
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FontInfo: {
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STIX: {family: "STIXSizeOneSym", testString: "() {} []"},
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TeX: {family: "MathJax_Size1", testString: "() {} []"},
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"STIX-Web": {family: "STIXWeb_Size1", testString: "() {} []"},
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"Asana-Math": {family: "AsanaMath_Size1", testString: "() {} []"},
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"Gyre-Pagella": {family: "GyrePagella_Size1", testString: "() {} []"},
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"Gyre-Termes": {family: "GyreTermes_Size1", testString: "() {} []"},
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"Latin-Modern": {family: "LatinModern_Size1", testString: "() {} []"},
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"Neo-Euler": {family: "NeoEuler_Size1", testString: "() {} []"}
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},
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comparisonFont: ["sans-serif","monospace","script","Times","Courier","Arial","Helvetica"],
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testSize: ["40px","50px","60px","30px","20px"],
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Init: function () {
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this.div = MathJax.HTML.addElement(document.body,"div",{
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id: "MathJax_Font_Test",
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style: {position:"absolute", visibility:"hidden", top:0, left:0, width: "auto",
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padding:0, border:0, margin:0, whiteSpace:"nowrap",
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textAlign:"left", textIndent:0, textTransform:"none",
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lineHeight:"normal", letterSpacing:"normal", wordSpacing:"normal",
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fontSize:this.testSize[0], fontWeight:"normal", fontStyle:"normal",
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fontSizeAdjust:"none"}
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},[""]);
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this.text = this.div.firstChild;
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},
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findFont: function (fonts,pref) {
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if (pref && this.testCollection(pref)) {return pref}
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for (var i = 0, m = fonts.length; i < m; i++) {
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if (fonts[i] === pref) continue;
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if (this.testCollection(fonts[i])) {return fonts[i]}
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}
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return null;
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},
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testCollection: function (name) {return this.testFont(this.FontInfo[name])},
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testFont: function (font) {
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if (font.isWebFont && HTMLCSS.FontFaceBug) {
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this.div.style.fontWeight = this.div.style.fontStyle = "normal";
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} else {
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this.div.style.fontWeight = (font.weight||"normal");
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this.div.style.fontStyle = (font.style||"normal");
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}
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var W = this.getComparisonWidths(font.testString,font.noStyleChar);
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if (W) {
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this.div.style.fontFamily = "'"+font.family+"',"+this.comparisonFont[0];
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if (this.div.offsetWidth == W[0]) {
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this.div.style.fontFamily = "'"+font.family+"',"+this.comparisonFont[W[2]];
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if (this.div.offsetWidth == W[1]) {return false}
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}
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if (this.div.offsetWidth != W[3] || this.div.offsetHeight != W[4]) {
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if (font.noStyleChar || !HTMLCSS.FONTDATA || !HTMLCSS.FONTDATA.hasStyleChar) {return true}
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for (var i = 0, m = this.testSize.length; i < m; i++)
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{if (this.testStyleChar(font,this.testSize[i])) {return true}}
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}
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}
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return false;
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},
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styleChar: "\uEFFD", // width encodes style
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versionChar: "\uEFFE", // width encodes version
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compChar: "\uEFFF", // "standard" width to compare to
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testStyleChar: function (font,size) {
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var n = 3 + (font.weight ? 2 : 0) + (font.style ? 4 : 0);
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var extra = "", dw = 0;
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var SIZE = this.div.style.fontSize; this.div.style.fontSize = size;
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if (HTMLCSS.msieItalicWidthBug && font.style === "italic") {
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this.text.nodeValue = extra = this.compChar;
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dw = this.div.offsetWidth;
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}
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if (HTMLCSS.safariTextNodeBug) {this.div.innerHTML = this.compChar+extra}
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else {this.text.nodeValue = this.compChar+extra}
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var W = this.div.offsetWidth-dw;
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if (HTMLCSS.safariTextNodeBug) {this.div.innerHTML = this.styleChar+extra}
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else {this.text.nodeValue = this.styleChar+extra}
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var N = Math.floor((this.div.offsetWidth-dw)/W+.5);
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if (N === n) {
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if (HTMLCSS.safariTextNodeBug) {this.div.innerHTML = this.versionChar+extra}
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else {this.text.nodeValue = this.versionChar+extra}
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font.version = Math.floor((this.div.offsetWidth-dw)/W+1.5)/2;
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}
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this.div.style.fontSize = SIZE;
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return (N === n);
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},
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getComparisonWidths: function (string,noStyleChar) {
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if (HTMLCSS.FONTDATA && HTMLCSS.FONTDATA.hasStyleChar && !noStyleChar)
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{string += this.styleChar + " " + this.compChar}
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if (HTMLCSS.safariTextNodeBug) {this.div.innerHTML = string}
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else {this.text.nodeValue = string}
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this.div.style.fontFamily = this.comparisonFont[0];
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var W = this.div.offsetWidth;
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this.div.style.fontFamily = HTMLCSS.webFontDefault;
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var sW = this.div.offsetWidth, sH = this.div.offsetHeight;
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for (var i = 1, m = this.comparisonFont.length; i < m; i++) {
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this.div.style.fontFamily = this.comparisonFont[i];
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if (this.div.offsetWidth != W) {return [W,this.div.offsetWidth,i,sW,sH]}
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}
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return null;
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},
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loadWebFont: function (font) {
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HUB.Startup.signal.Post("HTML-CSS Jax - Web-Font "+HTMLCSS.fontInUse+"/"+font.directory);
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var n = MESSAGE(["LoadWebFont","Loading web-font %1",HTMLCSS.fontInUse+"/"+font.directory]);
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var done = MathJax.Callback({}); // called when font is loaded
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var callback = MathJax.Callback(["loadComplete",this,font,n,done]);
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AJAX.timer.start(AJAX,[this.checkWebFont,font,callback],0,this.timeout);
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return done;
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},
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loadComplete: function (font,n,done,status) {
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MathJax.Message.Clear(n);
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if (status === AJAX.STATUS.OK) {this.webFontLoaded = true; done(); return}
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this.loadError(font);
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if (HUB.Browser.isFirefox && HTMLCSS.allowWebFonts) {
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var host = document.location.protocol + "//" + document.location.hostname;
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if (document.location.port != "") {host += ":" + document.location.port}
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host += "/";
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if (AJAX.fileURL(HTMLCSS.webfontDir).substr(0,host.length) !== host)
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{this.firefoxFontError(font)}
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}
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if (!this.webFontLoaded) {HTMLCSS.loadWebFontError(font,done)} else {done()}
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},
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loadError: function (font) {
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MESSAGE(["CantLoadWebFont","Can't load web font %1",HTMLCSS.fontInUse+"/"+font.directory],null,2000);
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HUB.Startup.signal.Post(["HTML-CSS Jax - web font error",HTMLCSS.fontInUse+"/"+font.directory,font]);
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},
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firefoxFontError: function (font) {
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MESSAGE(["FirefoxCantLoadWebFont","Firefox can't load web fonts from a remote host"],null,3000);
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HUB.Startup.signal.Post("HTML-CSS Jax - Firefox web fonts on remote host error");
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},
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checkWebFont: function (check,font,callback) {
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if (check.time(callback)) return;
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if (HTMLCSS.Font.testFont(font)) {callback(check.STATUS.OK)}
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else {setTimeout(check,check.delay)}
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},
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fontFace: function (name) {
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var type = HTMLCSS.allowWebFonts;
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var FONT = HTMLCSS.FONTDATA.FONTS[name];
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if (HTMLCSS.msieFontCSSBug && !FONT.family.match(/-Web$/)) {FONT.family += "-Web"}
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var dir = AJAX.fileURL(HTMLCSS.webfontDir+"/"+type);
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var fullname = name.replace(/-b/,"-B").replace(/-i/,"-I").replace(/-Bold-/,"-Bold");
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if (!fullname.match(/-/)) {fullname += "-Regular"}
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if (type === "svg") {fullname += ".svg#"+fullname} else {fullname += "."+type}
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var def = {
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"font-family": FONT.family,
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src: "url('"+dir+"/"+fullname+"')"
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};
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if (type === "otf") {
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def.src += " format('opentype')";
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dir = AJAX.fileURL(HTMLCSS.webfontDir+"/woff"); // add woff fonts as well
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def.src = "url('"+dir+"/"+fullname.replace(/otf$/,"woff")+"') format('woff'), "+def.src;
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} else if (type !== "eot") {def.src += " format('"+type+"')"}
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if (!(HTMLCSS.FontFaceBug && FONT.isWebFont)) {
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if (name.match(/-bold/)) {def["font-weight"] = "bold"}
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if (name.match(/-italic/)) {def["font-style"] = "italic"}
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}
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return def;
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}
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});
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var EVENT, TOUCH, HOVER; // filled in later
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HTMLCSS.Augment({
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config: {
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styles: {
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".MathJax": {
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"display": "inline",
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"font-style": "normal",
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"font-weight": "normal",
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"line-height": "normal",
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"font-size": "100%",
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"font-size-adjust":"none",
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"text-indent": 0,
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"text-align": "left",
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"text-transform": "none",
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"letter-spacing": "normal",
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"word-spacing": "normal",
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"word-wrap": "normal",
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"white-space": "nowrap",
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"float": "none",
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"direction": "ltr",
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border: 0, padding: 0, margin: 0
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},
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".MathJax_Display": {
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position: "relative",
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display: "block",
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width: "100%"
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},
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".MathJax img, .MathJax nobr, .MathJax a": {
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border: 0, padding: 0, margin: 0, "max-width": "none", "max-height": "none",
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"vertical-align": 0, "line-height": "normal",
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"text-decoration": "none"
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},
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"img.MathJax_strut": {
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border:"0 !important", padding:"0 !important", margin: "0 !important",
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"vertical-align": "0 !important"
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},
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".MathJax span": {
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display: "inline", position: "static",
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border: 0, padding: 0, margin: 0,
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"vertical-align": 0, "line-height": "normal",
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"text-decoration": "none"
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},
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".MathJax nobr": {
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"white-space": "nowrap ! important"
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},
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".MathJax img": {
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display: "inline ! important",
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"float": "none ! important"
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},
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".MathJax *": {
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transition: "none",
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"-webkit-transition": "none",
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"-moz-transition": "none",
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"-ms-transition": "none",
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"-o-transition": "none"
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},
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".MathJax_Processing": {
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visibility: "hidden", position:"fixed",
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width: 0, height: 0, overflow:"hidden"
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},
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".MathJax_Processed": {display:"none!important"},
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".MathJax_ExBox": {
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display:"block", overflow:"hidden",
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width:"1px", height:"60ex"
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},
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".MathJax .MathJax_EmBox": {
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display:"block", overflow:"hidden",
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width:"1px", height:"60em"
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},
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".MathJax .MathJax_HitBox": {
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cursor: "text",
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background: "white",
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opacity:0, filter:"alpha(opacity=0)"
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},
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".MathJax .MathJax_HitBox *": {
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filter: "none", opacity:1, background:"transparent" // for IE
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},
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"#MathJax_Tooltip": {
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position: "absolute", left: 0, top: 0,
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width: "auto", height: "auto",
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display: "none"
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},
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"#MathJax_Tooltip *": {
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filter: "none", opacity:1, background:"transparent" // for IE
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},
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//
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// Used for testing web fonts against the default font used while
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// web fonts are loading
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//
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"@font-face": {
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"font-family": "MathJax_Blank",
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"src": "url('about:blank')"
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}
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}
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},
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settings: HUB.config.menuSettings,
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hideProcessedMath: true, // use display:none until all math is processed
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Font: null, // created by Config() below
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webFontDefault: "MathJax_Blank",
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allowWebFonts: "otf", // assume browser can use OTF web fonts
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maxStretchyParts: 1000, // limit the number of parts allowed for
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// stretchy operators. See issue 366.
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Config: function () {
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if (!this.require) {this.require = []}
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this.Font = FONTTEST();
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this.SUPER(arguments).Config.call(this); var settings = this.settings;
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if (this.adjustAvailableFonts) {this.adjustAvailableFonts(this.config.availableFonts)}
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if (settings.scale) {this.config.scale = settings.scale}
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if (settings.font && settings.font !== "Auto") {
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if (settings.font === "TeXLocal") {this.config.availableFonts = ["TeX"]; this.config.preferredFont = "TeX"; this.config.webFont = "TeX"}
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else if (settings.font === "TeXWeb") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = "TeX"}
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else if (settings.font === "TeXimage") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = ""}
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else if (settings.font === "STIXlocal") {this.config.availableFonts = ["STIX"]; this.config.preferredFont = "STIX"; this.config.webFont = "STIX-Web"}
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else if (settings.font === "STIXWeb") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = "STIX-Web"}
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else if (settings.font === "AsanaMathWeb") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = "Asana-Math"}
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else if (settings.font === "GyrePagellaWeb") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = "Gyre-Pagella"}
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else if (settings.font === "GyreTermesWeb") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = "Gyre-Termes"}
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else if (settings.font === "LatinModernWeb") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = "Latin-Modern"}
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else if (settings.font === "NeoEulerWeb") {this.config.availableFonts = []; this.config.preferredFont = ""; this.config.webFont = "Neo-Euler"}
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}
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var font = this.Font.findFont(this.config.availableFonts,this.config.preferredFont);
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if (!font && this.allowWebFonts) {font = this.config.webFont; if (font) {this.webFonts = true}}
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if (!font && this.config.imageFont) {font = this.config.imageFont; this.imgFonts = true}
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if (font) {
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this.fontInUse = font; this.fontDir += "/" + font; this.webfontDir += "/" + font;
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this.require.push(this.fontDir+"/fontdata.js");
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if (this.imgFonts) {
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this.require.push(this.directory+"/imageFonts.js");
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HUB.Startup.signal.Post("HTML-CSS Jax - using image fonts");
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}
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} else {
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MESSAGE(["CantFindFontUsing","Can't find a valid font using %1",
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"["+this.config.availableFonts.join(", ")+"]"],null,3000);
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this.fontInUse = "generic";
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this.FONTDATA = {
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TeX_factor: 1, baselineskip: 1.2, lineH: .8, lineD: .2, ffLineH: .8,
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FONTS: {},
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VARIANT: {
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"normal": {fonts:[]}, "-generic-variant": {fonts:[]},
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"-largeOp": {fonts:[]}, "-smallOp": {fonts:[]}
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}, RANGES: [], DELIMITERS: {}, RULECHAR: 0x2D, REMAP: {}
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};
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HUB.Startup.signal.Post("HTML-CSS Jax - no valid font");
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}
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this.require.push(MathJax.OutputJax.extensionDir+"/MathEvents.js");
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},
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Startup: function () {
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// Set up event handling
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EVENT = MathJax.Extension.MathEvents.Event;
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TOUCH = MathJax.Extension.MathEvents.Touch;
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HOVER = MathJax.Extension.MathEvents.Hover;
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this.ContextMenu = EVENT.ContextMenu;
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this.Mousedown = EVENT.AltContextMenu;
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this.Mouseover = HOVER.Mouseover;
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this.Mouseout = HOVER.Mouseout;
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this.Mousemove = HOVER.Mousemove;
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// Make hidden div for when math is in a display:none block
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this.hiddenDiv = this.Element("div",{
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style:{visibility:"hidden", overflow:"hidden", position:"absolute", top:0,
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height:"1px", width: "auto", padding:0, border:0, margin:0,
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textAlign:"left", textIndent:0, textTransform:"none",
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lineHeight:"normal", letterSpacing:"normal", wordSpacing:"normal"}
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});
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if (!document.body.firstChild) {document.body.appendChild(this.hiddenDiv)}
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else {document.body.insertBefore(this.hiddenDiv,document.body.firstChild)}
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this.hiddenDiv = this.addElement(this.hiddenDiv,"div",{id:"MathJax_Hidden"});
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// Determine pixels per inch
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var div = this.addElement(this.hiddenDiv,"div",{style:{width:"5in"}});
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this.pxPerInch = div.offsetWidth/5; this.hiddenDiv.removeChild(div);
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// Markers used by getW
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this.startMarker = this.createStrut(this.Element("span"),10,true);
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this.endMarker = this.addText(this.Element("span"),"x").parentNode;
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// Used in getHD
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this.HDspan = this.Element("span");
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if (this.operaHeightBug) {this.createStrut(this.HDspan,0)}
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if (this.msieInlineBlockAlignBug) {
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this.HDimg = this.addElement(this.HDspan,"img",{style:{height:"0px", width:"1px"}});
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try {this.HDimg.src = "about:blank"} catch(err) {}
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} else {
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this.HDimg = this.createStrut(this.HDspan,0);
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}
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// Used in preTranslate to get scaling factors
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this.EmExSpan = this.Element("span",
|
|
{style:{position:"absolute","font-size-adjust":"none"}},
|
|
[
|
|
["span",{className:"MathJax_ExBox"}],
|
|
["span",{className:"MathJax"},
|
|
[["span",{className:"MathJax_EmBox"}]]
|
|
]
|
|
]
|
|
);
|
|
|
|
// Used in preTranslate to get linebreak width
|
|
this.linebreakSpan = this.Element("span",null,
|
|
[["hr",{style: {width:"100%", size:1, padding:0, border:0, margin:0}}]]);
|
|
|
|
// Set up styles and preload web fonts
|
|
return AJAX.Styles(this.config.styles,["InitializeHTML",this]);
|
|
},
|
|
|
|
removeSTIXfonts: function (fonts) {
|
|
//
|
|
// Opera doesn't display large chunks of the STIX fonts, and
|
|
// Safari/Windows doesn't display Plane1,
|
|
// so disable STIX for these browsers.
|
|
//
|
|
for (var i = 0, m = fonts.length; i < m; i++)
|
|
{if (fonts[i] === "STIX") {fonts.splice(i,1); m--; i--;}}
|
|
if (this.config.preferredFont === "STIX") {this.config.preferredFont = fonts[0]}
|
|
},
|
|
|
|
PreloadWebFonts: function () {
|
|
if (!HTMLCSS.allowWebFonts || !HTMLCSS.config.preloadWebFonts) return;
|
|
for (var i = 0, m = HTMLCSS.config.preloadWebFonts.length; i < m; i++) {
|
|
var FONT = HTMLCSS.FONTDATA.FONTS[HTMLCSS.config.preloadWebFonts[i]];
|
|
if (!FONT.available) {HTMLCSS.Font.testFont(FONT)}
|
|
}
|
|
},
|
|
|
|
//
|
|
// Handle initialization that requires styles to be set up
|
|
//
|
|
InitializeHTML: function () {
|
|
this.PreloadWebFonts();
|
|
//
|
|
// Get the default sizes (need styles in place to do this)
|
|
//
|
|
document.body.appendChild(this.EmExSpan);
|
|
document.body.appendChild(this.linebreakSpan);
|
|
this.defaultEx = this.EmExSpan.firstChild.offsetHeight/60;
|
|
this.defaultEm = this.EmExSpan.lastChild.firstChild.offsetHeight/60;
|
|
this.defaultWidth = this.linebreakSpan.firstChild.offsetWidth;
|
|
document.body.removeChild(this.linebreakSpan);
|
|
document.body.removeChild(this.EmExSpan);
|
|
},
|
|
|
|
preTranslate: function (state) {
|
|
var scripts = state.jax[this.id], i, m = scripts.length,
|
|
script, prev, span, div, test, jax, ex, em, scale, maxwidth, relwidth = false,
|
|
linebreak = this.config.linebreaks.automatic, width = this.config.linebreaks.width;
|
|
if (linebreak) {
|
|
relwidth = (width.match(/^\s*(\d+(\.\d*)?%\s*)?container\s*$/) != null);
|
|
if (relwidth) {width = width.replace(/\s*container\s*/,"")}
|
|
else {maxwidth = this.defaultWidth}
|
|
if (width === "") {width = "100%"}
|
|
} else {maxwidth = 100000} // a big width, so no implicit line breaks
|
|
//
|
|
// Loop through the scripts
|
|
//
|
|
for (i = 0; i < m; i++) {
|
|
script = scripts[i]; if (!script.parentNode) continue;
|
|
//
|
|
// Remove any existing output
|
|
//
|
|
prev = script.previousSibling;
|
|
if (prev && String(prev.className).match(/^MathJax(_Display)?( MathJax_Processing)?$/))
|
|
{prev.parentNode.removeChild(prev)}
|
|
//
|
|
// Add the span, and a div if in display mode,
|
|
// then set the role and mark it as being processed
|
|
//
|
|
jax = script.MathJax.elementJax; if (!jax) continue;
|
|
jax.HTMLCSS = {display: (jax.root.Get("display") === "block")}
|
|
span = div = this.Element("span",{
|
|
className:"MathJax", id:jax.inputID+"-Frame", isMathJax:true, jaxID:this.id,
|
|
oncontextmenu:EVENT.Menu, onmousedown: EVENT.Mousedown,
|
|
onmouseover:EVENT.Mouseover, onmouseout:EVENT.Mouseout, onmousemove:EVENT.Mousemove,
|
|
onclick:EVENT.Click, ondblclick:EVENT.DblClick
|
|
});
|
|
if (HUB.Browser.noContextMenu) {
|
|
span.ontouchstart = TOUCH.start;
|
|
span.ontouchend = TOUCH.end;
|
|
}
|
|
if (jax.HTMLCSS.display) {
|
|
div = this.Element("div",{className:"MathJax_Display"});
|
|
div.appendChild(span);
|
|
} else if (this.msieDisappearingBug) {span.style.display = "inline-block"}
|
|
//
|
|
// Mark math for screen readers
|
|
// (screen readers don't know about role="math" yet, so use "textbox" instead)
|
|
//
|
|
div.setAttribute("role","textbox"); div.setAttribute("aria-readonly","true");
|
|
div.className += " MathJax_Processing";
|
|
script.parentNode.insertBefore(div,script);
|
|
//
|
|
// Add the test span for determining scales and linebreak widths
|
|
//
|
|
script.parentNode.insertBefore(this.EmExSpan.cloneNode(true),script);
|
|
if (relwidth) {div.parentNode.insertBefore(this.linebreakSpan.cloneNode(true),div)}
|
|
}
|
|
//
|
|
// Determine the scaling factors for each script
|
|
// (this only requires one reflow rather than a reflow for each equation)
|
|
//
|
|
for (i = 0; i < m; i++) {
|
|
script = scripts[i]; if (!script.parentNode) continue;
|
|
test = script.previousSibling; div = test.previousSibling;
|
|
jax = script.MathJax.elementJax; if (!jax) continue;
|
|
ex = test.firstChild.offsetHeight/60;
|
|
em = test.lastChild.firstChild.offsetHeight/60;
|
|
if (relwidth) {maxwidth = div.previousSibling.firstChild.offsetWidth}
|
|
if (ex === 0 || ex === "NaN") {
|
|
// can't read width, so move to hidden div for processing
|
|
// (this will cause a reflow for each math element that is hidden)
|
|
this.hiddenDiv.appendChild(div);
|
|
jax.HTMLCSS.isHidden = true;
|
|
ex = this.defaultEx; em = this.defaultEm;
|
|
if (relwidth) {maxwidth = this.defaultWidth}
|
|
}
|
|
scale = (this.config.matchFontHeight ? ex/this.TeX.x_height/em : 1);
|
|
scale = Math.floor(Math.max(this.config.minScaleAdjust/100,scale)*this.config.scale);
|
|
jax.HTMLCSS.scale = scale/100; jax.HTMLCSS.fontSize = scale+"%";
|
|
jax.HTMLCSS.em = jax.HTMLCSS.outerEm = em; this.em = em * scale/100; jax.HTMLCSS.ex = ex;
|
|
jax.HTMLCSS.lineWidth = (linebreak ? this.length2em(width,1,maxwidth/this.em) : 1000000);
|
|
}
|
|
//
|
|
// Remove the test spans used for determining scales and linebreak widths
|
|
//
|
|
for (i = 0; i < m; i++) {
|
|
script = scripts[i]; if (!script.parentNode) continue;
|
|
test = scripts[i].previousSibling;
|
|
jax = scripts[i].MathJax.elementJax; if (!jax) continue;
|
|
if (relwidth) {
|
|
span = test.previousSibling;
|
|
if (!jax.HTMLCSS.isHidden) {span = span.previousSibling}
|
|
span.parentNode.removeChild(span);
|
|
}
|
|
test.parentNode.removeChild(test);
|
|
}
|
|
//
|
|
// Set state variables used for displaying equations in chunks
|
|
//
|
|
state.HTMLCSSeqn = state.HTMLCSSlast = 0; state.HTMLCSSi = -1;
|
|
state.HTMLCSSchunk = this.config.EqnChunk;
|
|
state.HTMLCSSdelay = false;
|
|
},
|
|
|
|
Translate: function (script,state) {
|
|
if (!script.parentNode) return;
|
|
|
|
//
|
|
// If we are supposed to do a chunk delay, do it
|
|
//
|
|
if (state.HTMLCSSdelay) {
|
|
state.HTMLCSSdelay = false;
|
|
HUB.RestartAfter(MathJax.Callback.Delay(this.config.EqnChunkDelay));
|
|
}
|
|
|
|
//
|
|
// Get the data about the math
|
|
//
|
|
var jax = script.MathJax.elementJax, math = jax.root,
|
|
span = document.getElementById(jax.inputID+"-Frame"),
|
|
div = (jax.HTMLCSS.display ? span.parentNode : span);
|
|
//
|
|
// Set the font metrics
|
|
//
|
|
this.em = MML.mbase.prototype.em = jax.HTMLCSS.em * jax.HTMLCSS.scale;
|
|
this.outerEm = jax.HTMLCSS.em; this.scale = jax.HTMLCSS.scale;
|
|
this.linebreakWidth = jax.HTMLCSS.lineWidth;
|
|
if (this.scale !== 1) {span.style.fontSize = jax.HTMLCSS.fontSize}
|
|
//
|
|
// Typeset the math
|
|
//
|
|
this.initImg(span);
|
|
this.initHTML(math,span);
|
|
math.setTeXclass();
|
|
try {math.toHTML(span,div)} catch (err) {
|
|
if (err.restart) {while (span.firstChild) {span.removeChild(span.firstChild)}}
|
|
throw err;
|
|
}
|
|
//
|
|
// Put it in place, and remove the processing marker
|
|
//
|
|
if (jax.HTMLCSS.isHidden) {script.parentNode.insertBefore(div,script)}
|
|
div.className = div.className.split(/ /)[0];
|
|
//
|
|
// Check if we are hiding the math until more is processed
|
|
//
|
|
if (this.hideProcessedMath) {
|
|
//
|
|
// Hide the math and don't let its preview be removed
|
|
//
|
|
div.className += " MathJax_Processed";
|
|
if (script.MathJax.preview) {
|
|
jax.HTMLCSS.preview = script.MathJax.preview;
|
|
delete script.MathJax.preview;
|
|
}
|
|
//
|
|
// Check if we should show this chunk of equations
|
|
//
|
|
state.HTMLCSSeqn += (state.i - state.HTMLCSSi); state.HTMLCSSi = state.i;
|
|
if (state.HTMLCSSeqn >= state.HTMLCSSlast + state.HTMLCSSchunk) {
|
|
this.postTranslate(state,true);
|
|
state.HTMLCSSchunk = Math.floor(state.HTMLCSSchunk*this.config.EqnChunkFactor);
|
|
state.HTMLCSSdelay = true; // delay if there are more scripts
|
|
}
|
|
}
|
|
},
|
|
|
|
postTranslate: function (state,partial) {
|
|
var scripts = state.jax[this.id];
|
|
if (!this.hideProcessedMath) return;
|
|
//
|
|
// Reveal this chunk of math
|
|
//
|
|
for (var i = state.HTMLCSSlast, m = state.HTMLCSSeqn; i < m; i++) {
|
|
var script = scripts[i];
|
|
if (script && script.MathJax.elementJax) {
|
|
//
|
|
// Remove the processed marker
|
|
//
|
|
script.previousSibling.className = script.previousSibling.className.split(/ /)[0];
|
|
var data = script.MathJax.elementJax.HTMLCSS;
|
|
//
|
|
// Remove the preview, if any
|
|
//
|
|
if (data.preview) {
|
|
data.preview.innerHTML = "";
|
|
script.MathJax.preview = data.preview;
|
|
delete data.preview;
|
|
}
|
|
}
|
|
}
|
|
if (this.forceReflow) {
|
|
// WebKit can misplace some elements that should wrap to the next line
|
|
// but gets them right on a reflow, so force reflow by toggling a stylesheet
|
|
var sheet = (document.styleSheets||[])[0]||{};
|
|
sheet.disabled = true; sheet.disabled = false;
|
|
}
|
|
//
|
|
// Save our place so we know what is revealed
|
|
//
|
|
state.HTMLCSSlast = state.HTMLCSSeqn;
|
|
},
|
|
|
|
getJaxFromMath: function (math) {
|
|
if (math.parentNode.className === "MathJax_Display") {math = math.parentNode}
|
|
do {math = math.nextSibling} while (math && math.nodeName.toLowerCase() !== "script");
|
|
return HUB.getJaxFor(math);
|
|
},
|
|
getHoverSpan: function (jax,math) {return jax.root.HTMLspanElement()},
|
|
getHoverBBox: function (jax,span,math) {
|
|
var bbox = span.bbox, em = jax.HTMLCSS.outerEm;
|
|
var BBOX = {w:bbox.w*em, h:bbox.h*em, d:bbox.d*em};
|
|
if (bbox.width) {BBOX.width = bbox.width}
|
|
return BBOX;
|
|
},
|
|
|
|
Zoom: function (jax,span,math,Mw,Mh) {
|
|
//
|
|
// Re-render at larger size
|
|
//
|
|
span.className = "MathJax";
|
|
span.style.fontSize = jax.HTMLCSS.fontSize;
|
|
|
|
//
|
|
// get em sizes (taken from HTMLCSS.preTranslate)
|
|
//
|
|
var emex = span.appendChild(this.EmExSpan.cloneNode(true));
|
|
var em = emex.lastChild.firstChild.offsetHeight/60;
|
|
this.em = MML.mbase.prototype.em = em;
|
|
this.outerEm = em / jax.HTMLCSS.scale;
|
|
emex.parentNode.removeChild(emex);
|
|
|
|
this.idPostfix = "-zoom"; jax.root.toHTML(span,span); this.idPostfix = "";
|
|
var width = jax.root.HTMLspanElement().bbox.width;
|
|
if (width) {
|
|
// Handle full-width displayed equations
|
|
// FIXME: this is a hack for now
|
|
span.style.width = Math.floor(Mw-1.5*HTMLCSS.em)+"px"; span.style.display="inline-block";
|
|
var id = (jax.root.id||"MathJax-Span-"+jax.root.spanID)+"-zoom";
|
|
var child = document.getElementById(id).firstChild;
|
|
while (child && child.style.width !== width) {child = child.nextSibling}
|
|
if (child) {child.style.width = "100%"}
|
|
}
|
|
//
|
|
// Get height and width of zoomed math and original math
|
|
//
|
|
span.style.position = "absolute";
|
|
if (!width) {math.style.position = "absolute"}
|
|
var zW = span.offsetWidth, zH = span.offsetHeight,
|
|
mH = math.offsetHeight, mW = math.offsetWidth;
|
|
if (mW === 0) {mW = math.parentNode.offsetWidth}; // IE7 gets mW == 0?
|
|
span.style.position = math.style.position = "";
|
|
//
|
|
return {Y:-EVENT.getBBox(span).h, mW:mW, mH:mH, zW:zW, zH:zH};
|
|
},
|
|
|
|
initImg: function (span) {},
|
|
initHTML: function (math,span) {},
|
|
initFont: function (name) {
|
|
var FONTS = HTMLCSS.FONTDATA.FONTS, AVAIL = HTMLCSS.config.availableFonts;
|
|
if (AVAIL && AVAIL.length && HTMLCSS.Font.testFont(FONTS[name]))
|
|
{FONTS[name].available = true; return null}
|
|
if (!this.allowWebFonts) {return null}
|
|
FONTS[name].isWebFont = true;
|
|
if (HTMLCSS.FontFaceBug) {
|
|
FONTS[name].family = name;
|
|
if (HTMLCSS.msieFontCSSBug) {FONTS[name].family += "-Web"}
|
|
}
|
|
return AJAX.Styles({"@font-face":this.Font.fontFace(name)});
|
|
},
|
|
|
|
Remove: function (jax) {
|
|
var span = document.getElementById(jax.inputID+"-Frame");
|
|
if (span) {
|
|
if (jax.HTMLCSS.display) {span = span.parentNode}
|
|
span.parentNode.removeChild(span);
|
|
}
|
|
delete jax.HTMLCSS;
|
|
},
|
|
|
|
getHD: function (span) {
|
|
var position = span.style.position;
|
|
span.style.position = "absolute";
|
|
this.HDimg.style.height = "0px";
|
|
span.appendChild(this.HDspan);
|
|
var HD = {h:span.offsetHeight};
|
|
this.HDimg.style.height = HD.h+"px";
|
|
HD.d = span.offsetHeight - HD.h; HD.h -= HD.d;
|
|
HD.h /= this.em; HD.d /= this.em;
|
|
span.removeChild(this.HDspan);
|
|
span.style.position = position;
|
|
return HD;
|
|
},
|
|
getW: function (span) {
|
|
var W, H, w = (span.bbox||{}).w, start = span;
|
|
if (span.bbox && span.bbox.exactW) {return w}
|
|
if ((span.bbox && w >= 0 && !this.initialSkipBug) || this.negativeBBoxes || !span.firstChild) {
|
|
W = span.offsetWidth; H = span.parentNode.offsetHeight;
|
|
} else if (span.bbox && w < 0 && this.msieNegativeBBoxBug) {
|
|
W = -span.offsetWidth, H = span.parentNode.offsetHeight;
|
|
} else {
|
|
// IE can't deal with a space at the beginning, so put something else first
|
|
if (this.initialSkipBug) {
|
|
var position = span.style.position; span.style.position = "absolute";
|
|
start = this.startMarker; span.insertBefore(start,span.firstChild)
|
|
}
|
|
span.appendChild(this.endMarker);
|
|
W = this.endMarker.offsetLeft - start.offsetLeft;
|
|
span.removeChild(this.endMarker);
|
|
if (this.initialSkipBug) {span.removeChild(start); span.style.position = position}
|
|
}
|
|
if (H != null) {span.parentNode.HH = H/this.em}
|
|
return W/this.em;
|
|
},
|
|
Measured: function (span,parent) {
|
|
var bbox = span.bbox;
|
|
if (bbox.width == null && bbox.w && !bbox.isMultiline) {
|
|
var w = this.getW(span);
|
|
bbox.rw += w - bbox.w;
|
|
bbox.w = w; bbox.exactW = true;
|
|
}
|
|
if (!parent) {parent = span.parentNode}
|
|
if (!parent.bbox) {parent.bbox = bbox}
|
|
return span;
|
|
},
|
|
Remeasured: function (span,parent) {
|
|
parent.bbox = this.Measured(span,parent).bbox;
|
|
},
|
|
MeasureSpans: function (SPANS) {
|
|
var spans = [], span, i, m, bbox, start, end, W, parent;
|
|
//
|
|
// Insert the needed markers
|
|
//
|
|
for (i = 0, m = SPANS.length; i < m; i++) {
|
|
span = SPANS[i]; if (!span) continue;
|
|
bbox = span.bbox; parent = this.parentNode(span);
|
|
if (bbox.exactW || bbox.width || bbox.w === 0 || bbox.isMultiline) {
|
|
if (!parent.bbox) {parent.bbox = bbox}
|
|
continue;
|
|
}
|
|
if (this.negativeBBoxes || !span.firstChild || (bbox.w >= 0 && !this.initialSkipBug) ||
|
|
(bbox.w < 0 && this.msieNegativeBBoxBug)) {
|
|
spans.push([span]);
|
|
} else if (this.initialSkipBug) {
|
|
start = this.startMarker.cloneNode(true); end = this.endMarker.cloneNode(true);
|
|
span.insertBefore(start,span.firstChild); span.appendChild(end);
|
|
spans.push([span,start,end,span.style.position]); span.style.position = "absolute";
|
|
} else {
|
|
end = this.endMarker.cloneNode(true);
|
|
span.appendChild(end); spans.push([span,null,end]);
|
|
}
|
|
}
|
|
//
|
|
// Read the widths and heights
|
|
//
|
|
for (i = 0, m = spans.length; i < m; i++) {
|
|
span = spans[i][0]; bbox = span.bbox; parent = this.parentNode(span);
|
|
if ((bbox.w >= 0 && !this.initialSkipBug) || this.negativeBBoxes || !span.firstChild) {
|
|
W = span.offsetWidth; parent.HH = parent.offsetHeight/this.em;
|
|
} else if (bbox.w < 0 && this.msieNegativeBBoxBug) {
|
|
W = -span.offsetWidth, parent.HH = parent.offsetHeight/this.em;
|
|
} else {
|
|
W = spans[i][2].offsetLeft - ((spans[i][1]||{}).offsetLeft||0);
|
|
}
|
|
W /= this.em;
|
|
bbox.rw += W - bbox.w;
|
|
bbox.w = W; bbox.exactW = true;
|
|
if (!parent.bbox) {parent.bbox = bbox}
|
|
}
|
|
//
|
|
// Remove markers
|
|
//
|
|
for (i = 0, m = spans.length; i < m; i++) {
|
|
span = spans[i];
|
|
if (span[1]) {span[1].parentNode.removeChild(span[1]), span[0].style.position = span[3]}
|
|
if (span[2]) {span[2].parentNode.removeChild(span[2])}
|
|
}
|
|
},
|
|
|
|
Em: function (m) {
|
|
if (Math.abs(m) < .0006) {return "0em"}
|
|
return m.toFixed(3).replace(/\.?0+$/,"") + "em";
|
|
},
|
|
EmRounded: function (m) {
|
|
m = (Math.round(m*HTMLCSS.em)+.05)/HTMLCSS.em;
|
|
if (Math.abs(m) < .0006) {return "0em"}
|
|
return m.toFixed(3).replace(/\.?0+$/,"") + "em";
|
|
},
|
|
unEm: function (m) {
|
|
return parseFloat(m);
|
|
},
|
|
Px: function (m) {
|
|
m *= this.em; var s = (m < 0? "-" : "");
|
|
return s+Math.abs(m).toFixed(1).replace(/\.?0+$/,"") + "px";
|
|
},
|
|
unPx: function (m) {
|
|
return parseFloat(m)/this.em;
|
|
},
|
|
Percent: function (m) {
|
|
return (100*m).toFixed(1).replace(/\.?0+$/,"") + "%";
|
|
},
|
|
length2em: function (length,mu,size) {
|
|
if (typeof(length) !== "string") {length = length.toString()}
|
|
if (length === "") {return ""}
|
|
if (length === MML.SIZE.NORMAL) {return 1}
|
|
if (length === MML.SIZE.BIG) {return 2}
|
|
if (length === MML.SIZE.SMALL) {return .71}
|
|
if (length === "infinity") {return HTMLCSS.BIGDIMEN}
|
|
var factor = this.FONTDATA.TeX_factor;
|
|
if (length.match(/mathspace$/)) {return HTMLCSS.MATHSPACE[length]*factor}
|
|
var match = length.match(/^\s*([-+]?(?:\.\d+|\d+(?:\.\d*)?))?(pt|em|ex|mu|px|pc|in|mm|cm|%)?/);
|
|
var m = parseFloat(match[1]||"1"), unit = match[2];
|
|
if (size == null) {size = 1}; if (mu == null) {mu = 1}
|
|
if (unit === "em") {return m * factor}
|
|
if (unit === "ex") {return m * HTMLCSS.TeX.x_height * factor}
|
|
if (unit === "%") {return m / 100 * size}
|
|
if (unit === "px") {return m / HTMLCSS.em}
|
|
if (unit === "pt") {return m / 10 * factor} // 10 pt to an em
|
|
if (unit === "pc") {return m * 1.2 * factor} // 12 pt to a pc
|
|
if (unit === "in") {return m * this.pxPerInch / HTMLCSS.em}
|
|
if (unit === "cm") {return m * this.pxPerInch / HTMLCSS.em / 2.54} // 2.54 cm to an inch
|
|
if (unit === "mm") {return m * this.pxPerInch / HTMLCSS.em / 25.4} // 10 mm to a cm
|
|
if (unit === "mu") {return m / 18 * factor * mu} // 18mu to an em for the scriptlevel
|
|
return m*factor*size; // relative to given size (or 1em as default)
|
|
},
|
|
thickness2em: function (length,mu) {
|
|
var thick = HTMLCSS.TeX.rule_thickness;
|
|
if (length === MML.LINETHICKNESS.MEDIUM) {return thick}
|
|
if (length === MML.LINETHICKNESS.THIN) {return .67*thick}
|
|
if (length === MML.LINETHICKNESS.THICK) {return 1.67*thick}
|
|
return this.length2em(length,mu,thick);
|
|
},
|
|
|
|
getPadding: function (span) {
|
|
var padding = {top:0, right:0, bottom:0, left:0}, has = false;
|
|
for (var id in padding) {if (padding.hasOwnProperty(id)) {
|
|
var pad = span.style["padding"+id.charAt(0).toUpperCase()+id.substr(1)];
|
|
if (pad) {padding[id] = this.length2em(pad); has = true;}
|
|
}}
|
|
return (has ? padding : false);
|
|
},
|
|
getBorders: function (span) {
|
|
var border = {top:0, right:0, bottom:0, left:0}, css = {}, has = false;
|
|
for (var id in border) {if (border.hasOwnProperty(id)) {
|
|
var ID = "border"+id.charAt(0).toUpperCase()+id.substr(1);
|
|
var style = span.style[ID+"Style"];
|
|
if (style) {
|
|
has = true;
|
|
border[id] = this.length2em(span.style[ID+"Width"]);
|
|
css[ID] = [span.style[ID+"Width"],span.style[ID+"Style"],span.style[ID+"Color"]].join(" ");
|
|
}
|
|
}}
|
|
border.css = css;
|
|
return (has ? border : false);
|
|
},
|
|
setBorders: function (span,borders) {
|
|
if (borders) {
|
|
for (var id in borders.css) {if (borders.css.hasOwnProperty(id)) {
|
|
span.style[id] = borders.css[id];
|
|
}}
|
|
}
|
|
},
|
|
|
|
createStrut: function (span,h,before) {
|
|
var strut = this.Element("span",{
|
|
isMathJax: true,
|
|
style:{display:"inline-block", overflow:"hidden", height:h+"px",
|
|
width:"1px", marginRight:"-1px"}
|
|
});
|
|
if (before) {span.insertBefore(strut,span.firstChild)} else {span.appendChild(strut)}
|
|
return strut;
|
|
},
|
|
createBlank: function (span,w,before) {
|
|
var blank = this.Element("span",{
|
|
isMathJax: true,
|
|
style: {display:"inline-block", overflow:"hidden", height:"1px", width:this.Em(w)}
|
|
});
|
|
if (before) {span.insertBefore(blank,span.firstChild)} else {span.appendChild(blank)}
|
|
return blank;
|
|
},
|
|
createShift: function (span,w,before) {
|
|
var space = this.Element("span",{style:{marginLeft:this.Em(w)}, isMathJax:true});
|
|
if (before) {span.insertBefore(space,span.firstChild)} else {span.appendChild(space)}
|
|
return space;
|
|
},
|
|
createSpace: function (span,h,d,w,color,isSpace) {
|
|
if (h < -d) {d = -h} // make sure h is above d
|
|
var H = this.Em(h+d), D = this.Em(-d);
|
|
if (this.msieInlineBlockAlignBug) {D = this.Em(HTMLCSS.getHD(span.parentNode).d-d)}
|
|
if (span.isBox || isSpace) {
|
|
var scale = (span.scale == null ? 1 : span.scale);
|
|
span.bbox = {exactW: true, h: h*scale, d: d*scale, w: w*scale, rw: w*scale, lw: 0};
|
|
span.style.height = H; span.style.verticalAlign = D;
|
|
span.HH = (h+d)*scale;
|
|
} else {
|
|
span = this.addElement(span,"span",{style: {height:H, verticalAlign:D}, isMathJax:true});
|
|
}
|
|
if (w >= 0) {
|
|
span.style.width = this.Em(w);
|
|
span.style.display = "inline-block";
|
|
span.style.overflow = "hidden"; // for IE in quirks mode
|
|
} else {
|
|
if (this.msieNegativeSpaceBug) {span.style.height = ""}
|
|
span.style.marginLeft = this.Em(w);
|
|
if (HTMLCSS.safariNegativeSpaceBug && span.parentNode.firstChild == span)
|
|
{this.createBlank(span,0,true)}
|
|
}
|
|
if (color && color !== MML.COLOR.TRANSPARENT) {
|
|
span.style.backgroundColor = color;
|
|
span.style.position = "relative"; // make sure it covers earlier items
|
|
}
|
|
return span;
|
|
},
|
|
createRule: function (span,h,d,w,color) {
|
|
if (h < -d) {d = -h} // make sure h is above d
|
|
var min = HTMLCSS.TeX.min_rule_thickness, f = 1;
|
|
// If rule is very thin, make it at least min_rule_thickness so it doesn't disappear
|
|
if (w > 0 && w*this.em < min) {w = min/this.em}
|
|
if (h+d > 0 && (h+d)*this.em < min) {f = 1/(h+d)*(min/this.em); h *= f; d *= f}
|
|
if (!color) {color = "solid"} else {color = "solid "+color}
|
|
color = this.Em(w)+" "+color;
|
|
var H = (f === 1 ? this.Em(h+d) : min+"px"), D = this.Em(-d);
|
|
var rule = this.addElement(span,"span",{
|
|
style: {borderLeft: color, display: "inline-block", overflow:"hidden",
|
|
width:0, height:H, verticalAlign:D},
|
|
bbox: {h:h, d:d, w:w, rw:w, lw:0, exactW:true}, noAdjust:true, HH:h+d, isMathJax:true
|
|
});
|
|
if (w > 0 && rule.offsetWidth == 0) {rule.style.width = this.Em(w)}
|
|
if (span.isBox || span.className == "mspace") {span.bbox = rule.bbox, span.HH = h+d}
|
|
return rule;
|
|
},
|
|
createFrame: function (span,h,d,w,t,style) {
|
|
if (h < -d) {d = -h} // make sure h is above d
|
|
var T = 2*t;
|
|
if (this.msieFrameSizeBug) {if (w < T) {w = T}; if (h+d < T) {h = T-d}}
|
|
if (this.msieBorderWidthBug) {T = 0}
|
|
var H = this.Em(h+d-T), D = this.Em(-d-t), W = this.Em(w-T);
|
|
var B = this.Em(t)+" "+style;
|
|
var frame = this.addElement(span,"span",{
|
|
style: {border: B, display:"inline-block", overflow:"hidden", width:W, height:H},
|
|
bbox: {h:h, d:d, w:w, rw:w, lw:0, exactW:true}, noAdjust: true, HH:h+d, isMathJax:true
|
|
});
|
|
if (D) {frame.style.verticalAlign = D}
|
|
return frame;
|
|
},
|
|
|
|
//
|
|
// Find parent span (skipping over <a> tags)
|
|
//
|
|
parentNode: function (span) {
|
|
var parent = span.parentNode;
|
|
if (parent.nodeName.toLowerCase() === "a") {parent = parent.parentNode}
|
|
return parent;
|
|
},
|
|
|
|
createStack: function (span,nobbox,w) {
|
|
if (this.msiePaddingWidthBug) {this.createStrut(span,0)}
|
|
var relativeW = String(w).match(/%$/);
|
|
var W = (!relativeW && w != null ? w : 0);
|
|
span = this.addElement(span,"span",{
|
|
noAdjust: true, HH: 0, isMathJax: true,
|
|
style: {display:"inline-block", position:"relative",
|
|
width:(relativeW ? "100%" : this.Em(W)), height:0}
|
|
});
|
|
if (!nobbox) {
|
|
span.parentNode.bbox = span.bbox = {
|
|
exactW: true,
|
|
h: -this.BIGDIMEN, d: -this.BIGDIMEN,
|
|
w:W, lw: this.BIGDIMEN, rw: (!relativeW && w != null ? w : -this.BIGDIMEN)
|
|
};
|
|
if (relativeW) {span.bbox.width = w}
|
|
}
|
|
return span;
|
|
},
|
|
createBox: function (span,w) {
|
|
var box = this.addElement(span,"span",{style:{position:"absolute"}, isBox: true, isMathJax:true});
|
|
if (w != null) {box.style.width = w}
|
|
return box;
|
|
},
|
|
addBox: function (span,box) {
|
|
box.style.position = "absolute"; box.isBox = box.isMathJax = true;
|
|
return span.appendChild(box);
|
|
},
|
|
placeBox: function (span,x,y,noclip) {
|
|
span.isMathJax = true;
|
|
var parent = HTMLCSS.parentNode(span), bbox = span.bbox, BBOX = parent.bbox;
|
|
if (this.msiePlaceBoxBug) {this.addText(span,this.NBSP)}
|
|
if (this.imgSpaceBug) {this.addText(span,this.imgSpace)}
|
|
// Place the box
|
|
var HH, dx = 0;
|
|
if (span.HH != null) {HH = span.HH}
|
|
else if (bbox) {HH = Math.max(3,bbox.h+bbox.d)}
|
|
else {HH = span.offsetHeight/this.em}
|
|
if (!span.noAdjust) {
|
|
HH += 1;
|
|
HH = Math.round(HH*this.em)/this.em; // make this an integer number of pixels (for Chrome)
|
|
if (this.msieInlineBlockAlignBug) {
|
|
this.addElement(span,"img",{
|
|
className:"MathJax_strut", border:0, src:"about:blank", isMathJax:true,
|
|
style:{width:0,height:this.Em(HH)}
|
|
});
|
|
} else {
|
|
this.addElement(span,"span",{
|
|
isMathJax: true, style:{display:"inline-block",width:0,height:this.Em(HH)}
|
|
});
|
|
if (HTMLCSS.chromeHeightBug)
|
|
{HH -= (span.lastChild.offsetHeight - Math.round(HH*this.em))/this.em}
|
|
}
|
|
}
|
|
// Clip so that bbox doesn't include extra height and depth
|
|
if (bbox) {
|
|
if (this.initialSkipBug) {
|
|
if (bbox.lw < 0) {dx = bbox.lw; HTMLCSS.createBlank(span,-dx,true)}
|
|
if (bbox.rw > bbox.w) {HTMLCSS.createBlank(span,bbox.rw-bbox.w+.1)}
|
|
}
|
|
if (!this.msieClipRectBug && !bbox.noclip && !noclip) {
|
|
var dd = 3/this.em;
|
|
var H = (bbox.H == null ? bbox.h : bbox.H), D = (bbox.D == null ? bbox.d : bbox.D);
|
|
var t = HH - H - dd, b = HH + D + dd, l = bbox.lw - 3*dd, r = 1000;
|
|
if (this.initialSkipBug && bbox.lw < 0) {l = -3*dd}
|
|
if (bbox.isFixed) {r = bbox.width-l}
|
|
span.style.clip = "rect("+this.Em(t)+" "+this.Em(r)+" "+this.Em(b)+" "+this.Em(l)+")";
|
|
}
|
|
}
|
|
// Place the box
|
|
span.style.top = this.Em(-y-HH);
|
|
span.style.left = this.Em(x+dx);
|
|
// Update the bounding box
|
|
if (bbox && BBOX) {
|
|
if (bbox.H != null && (BBOX.H == null || bbox.H + y > BBOX.H)) {BBOX.H = bbox.H + y}
|
|
if (bbox.D != null && (BBOX.D == null || bbox.D - y > BBOX.D)) {BBOX.D = bbox.D - y}
|
|
if (bbox.h + y > BBOX.h) {BBOX.h = bbox.h + y}
|
|
if (bbox.d - y > BBOX.d) {BBOX.d = bbox.d - y}
|
|
if (BBOX.H != null && BBOX.H <= BBOX.h) {delete BBOX.H}
|
|
if (BBOX.D != null && BBOX.D <= BBOX.d) {delete BBOX.D}
|
|
if (bbox.w + x > BBOX.w) {
|
|
BBOX.w = bbox.w + x;
|
|
if (BBOX.width == null) {parent.style.width = this.Em(BBOX.w)}
|
|
}
|
|
if (bbox.rw + x > BBOX.rw) {BBOX.rw = bbox.rw + x}
|
|
if (bbox.lw + x < BBOX.lw) {BBOX.lw = bbox.lw + x}
|
|
if (bbox.width != null && !bbox.isFixed) {
|
|
if (BBOX.width == null) {
|
|
parent.style.width = BBOX.width = "100%";
|
|
if (bbox.minWidth) {parent.style.minWidth = BBOX.minWidth = bbox.minWidth}
|
|
}
|
|
span.style.width = bbox.width;
|
|
}
|
|
}
|
|
},
|
|
alignBox: function (span,align,y) {
|
|
this.placeBox(span,0,y); // set y position (and left aligned)
|
|
var bbox = span.bbox; if (bbox.isMultiline) return;
|
|
var isRelative = bbox.width != null && !bbox.isFixed;
|
|
var r = 0, c = -bbox.w/2, l = "50%";
|
|
if (this.initialSkipBug) {r = bbox.w-bbox.rw-.1; c += bbox.lw}
|
|
if (this.msieMarginScaleBug) {c = (c*this.em) + "px"} else {c = this.Em(c)}
|
|
if (isRelative) {c = ""; l = (50 - parseFloat(bbox.width)/2) + "%"}
|
|
HUB.Insert(span.style,({
|
|
right: {left:"", right: this.Em(r)},
|
|
center: {left:l, marginLeft: c}
|
|
})[align]);
|
|
},
|
|
setStackWidth: function (span,w) {
|
|
if (typeof(w) === "number") {
|
|
span.style.width = this.Em(Math.max(0,w));
|
|
var bbox = span.bbox; if (bbox) {bbox.w = w; bbox.exactW = true};
|
|
bbox = span.parentNode.bbox; if (bbox) {bbox.w = w; bbox.exactW = true};
|
|
} else {
|
|
span.style.width = span.parentNode.style.width = "100%";
|
|
if (span.bbox) {span.bbox.width = w}
|
|
if (span.parentNode.bbox) {span.parentNode.bbox.width = w}
|
|
}
|
|
},
|
|
|
|
createDelimiter: function (span,code,HW,scale,font) {
|
|
if (!code) {
|
|
span.bbox = {h:0, d:0, w:this.TeX.nulldelimiterspace, lw: 0};
|
|
span.bbox.rw = span.bbox.w;
|
|
this.createSpace(span,span.bbox.h,span.bbox.d,span.bbox.w);
|
|
return;
|
|
}
|
|
if (!scale) {scale = 1};
|
|
if (!(HW instanceof Array)) {HW = [HW,HW]}
|
|
var hw = HW[1]; HW = HW[0];
|
|
var delim = {alias: code};
|
|
while (delim.alias) {
|
|
code = delim.alias; delim = this.FONTDATA.DELIMITERS[code];
|
|
if (!delim) {delim = {HW: [0,this.FONTDATA.VARIANT[MML.VARIANT.NORMAL]]}}
|
|
}
|
|
if (delim.load) {HUB.RestartAfter(AJAX.Require(this.fontDir+"/fontdata-"+delim.load+".js"))}
|
|
for (var i = 0, m = delim.HW.length; i < m; i++) {
|
|
if (delim.HW[i][0]*scale >= HW-.01 || (i == m-1 && !delim.stretch)) {
|
|
if (delim.HW[i][2]) {scale *= delim.HW[i][2]}
|
|
if (delim.HW[i][3]) {code = delim.HW[i][3]}
|
|
var chr = this.addElement(span,"span");
|
|
this.createChar(chr,[code,delim.HW[i][1]],scale,font);
|
|
span.bbox = chr.bbox;
|
|
span.offset = .65 * span.bbox.w;
|
|
span.scale = scale;
|
|
return;
|
|
}
|
|
}
|
|
if (delim.stretch) {this["extendDelimiter"+delim.dir](span,hw,delim.stretch,scale,font)}
|
|
},
|
|
extendDelimiterV: function (span,H,delim,scale,font) {
|
|
var stack = this.createStack(span,true);
|
|
var top = this.createBox(stack), bot = this.createBox(stack);
|
|
this.createChar(top,(delim.top||delim.ext),scale,font);
|
|
this.createChar(bot,(delim.bot||delim.ext),scale,font);
|
|
var ext = {bbox:{w:0,lw:0,rw:0}}, mid = ext, EXT;
|
|
var h = top.bbox.h + top.bbox.d + bot.bbox.h + bot.bbox.d;
|
|
var y = -top.bbox.h; this.placeBox(top,0,y,true); y -= top.bbox.d;
|
|
if (delim.mid) {
|
|
mid = this.createBox(stack); this.createChar(mid,delim.mid,scale,font);
|
|
h += mid.bbox.h + mid.bbox.d;
|
|
}
|
|
if (delim.min && H < h*delim.min) {H = h*delim.min}
|
|
if (H > h) {
|
|
ext = this.Element("span"); this.createChar(ext,delim.ext,scale,font);
|
|
var eH = ext.bbox.h + ext.bbox.d, eh = eH - .05, n, N, k = (delim.mid ? 2 : 1);
|
|
N = n = Math.min(Math.ceil((H-h)/(k*eh)), this.maxStretchyParts);
|
|
if (!delim.fullExtenders) {eh = (H-h)/(k*n)}
|
|
var dy = (n/(n+1))*(eH - eh); eh = eH - dy; y += dy + eh - ext.bbox.h;
|
|
while (k-- > 0) {
|
|
while (n-- > 0) {
|
|
if (!this.msieCloneNodeBug) {EXT = ext.cloneNode(true)}
|
|
else {EXT = this.Element("span"); this.createChar(EXT,delim.ext,scale,font)}
|
|
EXT.bbox = ext.bbox;
|
|
y -= eh; this.placeBox(this.addBox(stack,EXT),0,y,true);
|
|
}
|
|
y += dy - ext.bbox.d;
|
|
if (delim.mid && k) {
|
|
this.placeBox(mid,0,y-mid.bbox.h,true); n = N;
|
|
y += -(mid.bbox.h + mid.bbox.d) + dy + eh - ext.bbox.h;
|
|
}
|
|
}
|
|
} else {
|
|
y += (h - H)/2;
|
|
if (delim.mid) {this.placeBox(mid,0,y-mid.bbox.h,true); y += -(mid.bbox.h + mid.bbox.d)}
|
|
y += (h - H)/2;
|
|
}
|
|
this.placeBox(bot,0,y-bot.bbox.h,true); y -= bot.bbox.h + bot.bbox.d;
|
|
span.bbox = {
|
|
w: Math.max(top.bbox.w,ext.bbox.w,bot.bbox.w,mid.bbox.w),
|
|
lw: Math.min(top.bbox.lw,ext.bbox.lw,bot.bbox.lw,mid.bbox.lw),
|
|
rw: Math.max(top.bbox.rw,ext.bbox.rw,bot.bbox.rw,mid.bbox.rw),
|
|
h: 0, d: -y, exactW: true
|
|
}
|
|
span.scale = scale;
|
|
span.offset = .55 * span.bbox.w;
|
|
span.isMultiChar = true;
|
|
this.setStackWidth(stack,span.bbox.w);
|
|
},
|
|
extendDelimiterH: function (span,W,delim,scale,font) {
|
|
var stack = this.createStack(span,true);
|
|
var left = this.createBox(stack), right = this.createBox(stack);
|
|
this.createChar(left,(delim.left||delim.rep),scale,font);
|
|
this.createChar(right,(delim.right||delim.rep),scale,font);
|
|
var rep = this.Element("span"); this.createChar(rep,delim.rep,scale,font);
|
|
var mid = {bbox: {h:-this.BIGDIMEN, d:-this.BIGDIMEN}}, REP;
|
|
this.placeBox(left,-left.bbox.lw,0,true);
|
|
var w = (left.bbox.rw - left.bbox.lw) + (right.bbox.rw - right.bbox.lw) - .05,
|
|
x = left.bbox.rw - left.bbox.lw - .025, dx;
|
|
if (delim.mid) {
|
|
mid = this.createBox(stack); this.createChar(mid,delim.mid,scale,font);
|
|
w += mid.bbox.w;
|
|
}
|
|
if (delim.min && W < w*delim.min) {W = w*delim.min}
|
|
if (W > w) {
|
|
var rW = rep.bbox.rw-rep.bbox.lw, rw = rW - .05, n, N, k = (delim.mid ? 2 : 1);
|
|
N = n = Math.min(Math.ceil((W-w)/(k*rw)), this.maxStretchyParts);
|
|
if (!delim.fillExtenders) {rw = (W-w)/(k*n)}
|
|
dx = (n/(n+1))*(rW - rw); rw = rW - dx; x -= rep.bbox.lw + dx;
|
|
while (k-- > 0) {
|
|
while (n-- > 0) {
|
|
if (!this.cloneNodeBug) {REP = rep.cloneNode(true)}
|
|
else {REP = this.Element("span"); this.createChar(REP,delim.rep,scale,font)}
|
|
REP.bbox = rep.bbox;
|
|
this.placeBox(this.addBox(stack,REP),x,0,true); x += rw;
|
|
}
|
|
if (delim.mid && k) {this.placeBox(mid,x,0,true); x += mid.bbox.w - dx; n = N}
|
|
}
|
|
} else {
|
|
x -= (w - W)/2;
|
|
if (delim.mid) {this.placeBox(mid,x,0,true); x += mid.bbox.w};
|
|
x -= (w - W)/2;
|
|
}
|
|
this.placeBox(right,x,0,true);
|
|
span.bbox = {
|
|
w: x+right.bbox.rw, lw: 0, rw: x+right.bbox.rw,
|
|
H: Math.max(left.bbox.h,rep.bbox.h,right.bbox.h,mid.bbox.h),
|
|
D: Math.max(left.bbox.d,rep.bbox.d,right.bbox.d,mid.bbox.d),
|
|
h: rep.bbox.h, d: rep.bbox.d, exactW: true
|
|
}
|
|
span.scale = scale;
|
|
span.isMultiChar = true;
|
|
this.setStackWidth(stack,span.bbox.w);
|
|
},
|
|
createChar: function (span,data,scale,font) {
|
|
span.isMathJax = true;
|
|
var SPAN = span, text = "", variant = {fonts: [data[1]], noRemap:true};
|
|
if (font && font === MML.VARIANT.BOLD) {variant.fonts = [data[1]+"-bold",data[1]]}
|
|
if (typeof(data[1]) !== "string") {variant = data[1]}
|
|
if (data[0] instanceof Array) {
|
|
for (var i = 0, m = data[0].length; i < m; i++) {text += String.fromCharCode(data[0][i])}
|
|
} else {text = String.fromCharCode(data[0])}
|
|
if (data[4]) {scale *= data[4]}
|
|
if (scale !== 1 || data[3]) {
|
|
SPAN = this.addElement(span,"span",{style:{fontSize: this.Percent(scale)}, scale:scale, isMathJax:true});
|
|
this.handleVariant(SPAN,variant,text);
|
|
span.bbox = SPAN.bbox;
|
|
} else {this.handleVariant(span,variant,text)}
|
|
if (data[2]) {span.style.marginLeft = this.Em(data[2])} // x offset
|
|
if (data[3]) { // y offset
|
|
span.firstChild.style.verticalAlign = this.Em(data[3]);
|
|
span.bbox.h += data[3]; if (span.bbox.h < 0) {span.bbox.h = 0}
|
|
}
|
|
if (data[5]) {span.bbox.h += data[5]} // extra height
|
|
if (data[6]) {span.bbox.d += data[6]} // extra depth
|
|
// Handle combining characters by adding a non-breaking space so it shows up
|
|
if (this.AccentBug && span.bbox.w === 0) {SPAN.firstChild.nodeValue += this.NBSP}
|
|
},
|
|
positionDelimiter: function (span,h) {
|
|
h -= span.bbox.h; span.bbox.d -= h; span.bbox.h += h;
|
|
if (h) {
|
|
if (this.safariVerticalAlignBug || this.konquerorVerticalAlignBug ||
|
|
(this.operaVerticalAlignBug && span.isMultiChar)) {
|
|
if (span.firstChild.style.display === "" && span.style.top !== "")
|
|
{span = span.firstChild; h -= HTMLCSS.unEm(span.style.top)}
|
|
span.style.position = "relative";
|
|
span.style.top = this.Em(-h);
|
|
} else {
|
|
span.style.verticalAlign = this.Em(h);
|
|
if (HTMLCSS.ffVerticalAlignBug) {HTMLCSS.createRule(span.parentNode,span.bbox.h,0,0)}
|
|
}
|
|
}
|
|
},
|
|
|
|
handleVariant: function (span,variant,text) {
|
|
var newtext = "", n, c, font, VARIANT, SPAN = span, force = !!span.style.fontFamily;
|
|
if (text.length === 0) return;
|
|
if (!span.bbox) {
|
|
span.bbox = {
|
|
w: 0, h: -this.BIGDIMEN, d: -this.BIGDIMEN,
|
|
rw: -this.BIGDIMEN, lw: this.BIGDIMEN
|
|
};
|
|
}
|
|
if (!variant) {variant = this.FONTDATA.VARIANT[MML.VARIANT.NORMAL]}
|
|
VARIANT = variant;
|
|
for (var i = 0, m = text.length; i < m; i++) {
|
|
variant = VARIANT;
|
|
n = text.charCodeAt(i); c = text.charAt(i);
|
|
if (n >= 0xD800 && n < 0xDBFF) {
|
|
i++; n = (((n-0xD800)<<10)+(text.charCodeAt(i)-0xDC00))+0x10000;
|
|
if (this.FONTDATA.RemapPlane1) {
|
|
var nv = this.FONTDATA.RemapPlane1(n,variant);
|
|
n = nv.n; variant = nv.variant;
|
|
}
|
|
} else {
|
|
var id, M, RANGES = this.FONTDATA.RANGES;
|
|
for (id = 0, M = RANGES.length; id < M; id++) {
|
|
if (RANGES[id].name === "alpha" && variant.noLowerCase) continue;
|
|
var N = variant["offset"+RANGES[id].offset];
|
|
if (N && n >= RANGES[id].low && n <= RANGES[id].high) {
|
|
if (RANGES[id].remap && RANGES[id].remap[n]) {
|
|
n = N + RANGES[id].remap[n];
|
|
} else {
|
|
n = n - RANGES[id].low + N;
|
|
if (RANGES[id].add) {n += RANGES[id].add}
|
|
}
|
|
if (variant["variant"+RANGES[id].offset])
|
|
{variant = this.FONTDATA.VARIANT[variant["variant"+RANGES[id].offset]]}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (variant.remap && variant.remap[n]) {
|
|
if (variant.remap[n] instanceof Array) {
|
|
var remap = variant.remap[n];
|
|
n = remap[0]; variant = this.FONTDATA.VARIANT[remap[1]];
|
|
} else if (typeof(variant.remap[n]) === "string") {
|
|
text = variant.remap[n]+text.substr(i+1);
|
|
i = 0; m = text.length; n = text.charCodeAt(0);
|
|
} else {
|
|
n = variant.remap[n];
|
|
if (variant.remap.variant) {variant = this.FONTDATA.VARIANT[variant.remap.variant]}
|
|
}
|
|
}
|
|
if (this.FONTDATA.REMAP[n] && !variant.noRemap) {
|
|
n = this.FONTDATA.REMAP[n];
|
|
if (n instanceof Array) {variant = this.FONTDATA.VARIANT[n[1]]; n = n[0]}
|
|
if (typeof(n) === "string") {
|
|
text = n+text.substr(i+1);
|
|
i = 0; m = text.length; n = n.charCodeAt(0);
|
|
}
|
|
}
|
|
font = this.lookupChar(variant,n); c = font[n];
|
|
if (force || (!this.checkFont(font,SPAN.style) && !c[5].img)) {
|
|
if (newtext.length) {this.addText(SPAN,newtext); newtext = ""};
|
|
var addSpan = !!SPAN.style.fontFamily || !!span.style.fontStyle ||
|
|
!!span.style.fontWeight || !font.directory || force; force = false;
|
|
if (SPAN !== span) {addSpan = !this.checkFont(font,span.style); SPAN = span}
|
|
if (addSpan) {SPAN = this.addElement(span,"span",{isMathJax:true, subSpan:true})}
|
|
this.handleFont(SPAN,font,SPAN !== span);
|
|
}
|
|
newtext = this.handleChar(SPAN,font,c,n,newtext);
|
|
if (!(c[5]||{}).space) {
|
|
if (c[0]/1000 > span.bbox.h) {span.bbox.h = c[0]/1000}
|
|
if (c[1]/1000 > span.bbox.d) {span.bbox.d = c[1]/1000}
|
|
}
|
|
if (span.bbox.w + c[3]/1000 < span.bbox.lw) {span.bbox.lw = span.bbox.w + c[3]/1000}
|
|
if (span.bbox.w + c[4]/1000 > span.bbox.rw) {span.bbox.rw = span.bbox.w + c[4]/1000}
|
|
span.bbox.w += c[2]/1000;
|
|
}
|
|
if (newtext.length) {this.addText(SPAN,newtext)}
|
|
if (span.scale && span.scale !== 1) {
|
|
span.bbox.h *= span.scale; span.bbox.d *= span.scale;
|
|
span.bbox.w *= span.scale; span.bbox.lw *= span.scale; span.bbox.rw *= span.scale;
|
|
}
|
|
if (text.length == 1 && font.skew && font.skew[n]) {span.bbox.skew = font.skew[n]}
|
|
},
|
|
checkFont: function (font,style) {
|
|
var weight = (style.fontWeight||"normal");
|
|
if (weight.match(/^\d+$/)) {weight = (parseInt(weight) >= 600 ? "bold" : "normal")}
|
|
return (font.family.replace(/'/g,"") === style.fontFamily.replace(/'/g,"") &&
|
|
(font.style||"normal") === (style.fontStyle||"normal") &&
|
|
(font.weight||"normal") === weight);
|
|
},
|
|
|
|
handleFont: function (span,font,force) {
|
|
span.style.fontFamily = font.family;
|
|
if (!font.directory) {span.style.fontSize = Math.floor(100/HTMLCSS.scale+.5) + "%"}
|
|
if (!(HTMLCSS.FontFaceBug && font.isWebFont)) {
|
|
var style = font.style || "normal", weight = font.weight || "normal";
|
|
if (style !== "normal" || force) {span.style.fontStyle = style}
|
|
if (weight !== "normal" || force) {span.style.fontWeight = weight}
|
|
}
|
|
},
|
|
|
|
handleChar: function (span,font,c,n,text) {
|
|
var C = c[5];
|
|
if (C.space) {
|
|
if (text.length) {this.addText(span,text)}
|
|
HTMLCSS.createShift(span,c[2]/1000);
|
|
return "";
|
|
}
|
|
if (C.img) {return this.handleImg(span,font,c,n,text)}
|
|
if (C.isUnknown && this.FONTDATA.DELIMITERS[n]) {
|
|
if (text.length) {this.addText(span,text)}
|
|
var scale = span.scale;
|
|
HTMLCSS.createDelimiter(span,n,0,1,font);
|
|
if (this.FONTDATA.DELIMITERS[n].dir === "V") {
|
|
span.style.verticalAlign = this.Em(span.bbox.d);
|
|
span.bbox.h += span.bbox.d; span.bbox.d = 0;
|
|
}
|
|
span.scale = scale;
|
|
c[0] = span.bbox.h*1000; c[1] = span.bbox.d*1000;
|
|
c[2] = span.bbox.w*1000; c[3] = span.bbox.lw*1000; c[4] = span.bbox.rw*1000;
|
|
return "";
|
|
}
|
|
if (C.c == null) {
|
|
if (n <= 0xFFFF) {C.c = String.fromCharCode(n)} else {
|
|
var N = n - 0x10000;
|
|
C.c = String.fromCharCode((N>>10)+0xD800)
|
|
+ String.fromCharCode((N&0x3FF)+0xDC00);
|
|
}
|
|
}
|
|
if (C.rfix) {this.addText(span,text+C.c); HTMLCSS.createShift(span,C.rfix/1000); return ""}
|
|
if (c[2] || !this.msieAccentBug || text.length) {return text + C.c}
|
|
// Handle IE accent clipping bug
|
|
HTMLCSS.createShift(span,c[3]/1000);
|
|
HTMLCSS.createShift(span,(c[4]-c[3])/1000);
|
|
this.addText(span,C.c);
|
|
HTMLCSS.createShift(span,-c[4]/1000);
|
|
return "";
|
|
},
|
|
handleImg: function (span,font,c,n,text) {return text}, // replaced by imageFont extension
|
|
|
|
lookupChar: function (variant,n) {
|
|
var i, m;
|
|
if (!variant.FONTS) {
|
|
var FONTS = this.FONTDATA.FONTS;
|
|
var fonts = (variant.fonts || this.FONTDATA.VARIANT.normal.fonts);
|
|
if (!(fonts instanceof Array)) {fonts = [fonts]}
|
|
if (variant.fonts != fonts) {variant.fonts = fonts}
|
|
variant.FONTS = [];
|
|
for (i = 0, m = fonts.length; i < m; i++) {
|
|
if (FONTS[fonts[i]]) {
|
|
variant.FONTS.push(FONTS[fonts[i]]);
|
|
FONTS[fonts[i]].name = fonts[i]; // FIXME: should really be in the font files
|
|
}
|
|
}
|
|
}
|
|
for (i = 0, m = variant.FONTS.length; i < m; i++) {
|
|
var font = variant.FONTS[i];
|
|
if (typeof(font) === "string") {
|
|
delete variant.FONTS; this.loadFont(font);
|
|
}
|
|
if (font[n]) {
|
|
if (font[n].length === 5) {font[n][5] = {}}
|
|
if (HTMLCSS.allowWebFonts && !font.available)
|
|
{this.loadWebFont(font)} else {return font}
|
|
} else {this.findBlock(font,n)}
|
|
}
|
|
return this.unknownChar(variant,n);
|
|
},
|
|
|
|
unknownChar: function (variant,n) {
|
|
var unknown = (variant.defaultFont || {family:HTMLCSS.config.undefinedFamily});
|
|
if (variant.bold) {unknown.weight = "bold"}; if (variant.italic) {unknown.style = "italic"}
|
|
if (!unknown[n]) {unknown[n] = [800,200,500,0,500,{isUnknown:true}]} // [h,d,w,lw,rw,{data}]
|
|
HUB.signal.Post(["HTML-CSS Jax - unknown char",n,variant]);
|
|
return unknown;
|
|
},
|
|
|
|
findBlock: function (font,c) {
|
|
if (font.Ranges) {
|
|
// FIXME: do binary search?
|
|
for (var i = 0, m = font.Ranges.length; i < m; i++) {
|
|
if (c < font.Ranges[i][0]) return;
|
|
if (c <= font.Ranges[i][1]) {
|
|
var file = font.Ranges[i][2];
|
|
for (var j = font.Ranges.length-1; j >= 0; j--)
|
|
{if (font.Ranges[j][2] == file) {font.Ranges.splice(j,1)}}
|
|
this.loadFont(font.directory+"/"+file+".js");
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
loadFont: function (file) {
|
|
var queue = MathJax.Callback.Queue();
|
|
queue.Push(["Require",AJAX,this.fontDir+"/"+file]);
|
|
if (this.imgFonts) {
|
|
if (!MathJax.isPacked) {file = file.replace(/\/([^\/]*)$/,HTMLCSS.imgPacked+"/$1")}
|
|
queue.Push(["Require",AJAX,this.webfontDir+"/png/"+file]);
|
|
}
|
|
HUB.RestartAfter(queue.Push({}));
|
|
},
|
|
|
|
loadWebFont: function (font) {
|
|
font.available = font.isWebFont = true;
|
|
if (HTMLCSS.FontFaceBug) {
|
|
font.family = font.name;
|
|
if (HTMLCSS.msieFontCSSBug) {font.family += "-Web"}
|
|
}
|
|
HUB.RestartAfter(this.Font.loadWebFont(font));
|
|
},
|
|
loadWebFontError: function (font,done) {
|
|
//
|
|
// After the first web font fails to load, switch to image fonts, if possible
|
|
// otherwise, give up on web fonts all together
|
|
//
|
|
HUB.Startup.signal.Post("HTML-CSS Jax - disable web fonts");
|
|
font.isWebFont = false;
|
|
if (this.config.imageFont && this.config.imageFont === this.fontInUse) {
|
|
this.imgFonts = true;
|
|
HUB.Startup.signal.Post("HTML-CSS Jax - switch to image fonts");
|
|
HUB.Startup.signal.Post("HTML-CSS Jax - using image fonts");
|
|
MESSAGE(["WebFontNotAvailable","Web-Fonts not available -- using image fonts instead"],null,3000);
|
|
AJAX.Require(this.directory+"/imageFonts.js",done);
|
|
} else {
|
|
this.allowWebFonts = false;
|
|
done();
|
|
}
|
|
},
|
|
|
|
Element: MathJax.HTML.Element,
|
|
addElement: MathJax.HTML.addElement,
|
|
TextNode: MathJax.HTML.TextNode,
|
|
addText: MathJax.HTML.addText,
|
|
ucMatch: MathJax.HTML.ucMatch,
|
|
|
|
BIGDIMEN: 10000000,
|
|
ID: 0, idPostfix: "",
|
|
GetID: function () {this.ID++; return this.ID},
|
|
|
|
MATHSPACE: {
|
|
veryverythinmathspace: 1/18,
|
|
verythinmathspace: 2/18,
|
|
thinmathspace: 3/18,
|
|
mediummathspace: 4/18,
|
|
thickmathspace: 5/18,
|
|
verythickmathspace: 6/18,
|
|
veryverythickmathspace: 7/18,
|
|
negativeveryverythinmathspace: -1/18,
|
|
negativeverythinmathspace: -2/18,
|
|
negativethinmathspace: -3/18,
|
|
negativemediummathspace: -4/18,
|
|
negativethickmathspace: -5/18,
|
|
negativeverythickmathspace: -6/18,
|
|
negativeveryverythickmathspace: -7/18
|
|
},
|
|
|
|
TeX: {
|
|
x_height: .430554,
|
|
quad: 1,
|
|
num1: .676508,
|
|
num2: .393732,
|
|
num3: .44373,
|
|
denom1: .685951,
|
|
denom2: .344841,
|
|
sup1: .412892,
|
|
sup2: .362892,
|
|
sup3: .288888,
|
|
sub1: .15,
|
|
sub2: .247217,
|
|
sup_drop: .386108,
|
|
sub_drop: .05,
|
|
delim1: 2.39,
|
|
delim2: 1.0,
|
|
axis_height: .25,
|
|
rule_thickness: .06,
|
|
big_op_spacing1: .111111,
|
|
big_op_spacing2: .166666,
|
|
big_op_spacing3: .2,
|
|
big_op_spacing4: .6,
|
|
big_op_spacing5: .1,
|
|
|
|
scriptspace: .1,
|
|
nulldelimiterspace: .12,
|
|
delimiterfactor: 901,
|
|
delimitershortfall: .1, // originally .3,
|
|
|
|
min_rule_thickness: 1.25 // in pixels
|
|
},
|
|
|
|
NBSP: "\u00A0",
|
|
|
|
rfuzz: 0 // adjustment to rule placements in roots
|
|
});
|
|
|
|
MathJax.Hub.Register.StartupHook("mml Jax Ready",function () {
|
|
|
|
MML = MathJax.ElementJax.mml;
|
|
|
|
MML.mbase.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLcreateSpan(span); if (this.type != "mrow") {span = this.HTMLhandleSize(span)}
|
|
for (var i = 0, m = this.data.length; i < m; i++)
|
|
{if (this.data[i]) {this.data[i].toHTML(span)}}
|
|
var stretchy = this.HTMLcomputeBBox(span);
|
|
var h = span.bbox.h, d = span.bbox.d;
|
|
for (i = 0, m = stretchy.length; i < m; i++) {stretchy[i].HTMLstretchV(span,h,d)}
|
|
if (stretchy.length) {this.HTMLcomputeBBox(span,true)}
|
|
if (this.HTMLlineBreaks(span)) {span = this.HTMLmultiline(span)}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLlineBreaks: function () {return false},
|
|
HTMLmultiline: function () {MML.mbase.HTMLautoloadFile("multiline")},
|
|
HTMLcomputeBBox: function (span,full,i,m) {
|
|
if (i == null) {i = 0}; if (m == null) {m = this.data.length}
|
|
var BBOX = span.bbox = {exactW: true}, stretchy = [];
|
|
while (i < m) {
|
|
var core = this.data[i]; if (!core) continue;
|
|
if (!full && core.HTMLcanStretch("Vertical"))
|
|
{stretchy.push(core); core = (core.CoreMO()||core)}
|
|
this.HTMLcombineBBoxes(core,BBOX); i++;
|
|
}
|
|
this.HTMLcleanBBox(BBOX);
|
|
return stretchy;
|
|
},
|
|
HTMLcombineBBoxes: function (core,BBOX) {
|
|
if (BBOX.w == null) {this.HTMLemptyBBox(BBOX)}
|
|
var child = (core.bbox ? core : core.HTMLspanElement());
|
|
if (!child || !child.bbox) return;
|
|
var bbox = child.bbox;
|
|
if (bbox.d > BBOX.d) {BBOX.d = bbox.d}
|
|
if (bbox.h > BBOX.h) {BBOX.h = bbox.h}
|
|
if (bbox.D != null && bbox.D > BBOX.D) {BBOX.D = bbox.D}
|
|
if (bbox.H != null && bbox.H > BBOX.H) {BBOX.H = bbox.H}
|
|
if (child.style.paddingLeft) {BBOX.w += HTMLCSS.unEm(child.style.paddingLeft)*(child.scale||1)}
|
|
if (BBOX.w + bbox.lw < BBOX.lw) {BBOX.lw = BBOX.w + bbox.lw}
|
|
if (BBOX.w + bbox.rw > BBOX.rw) {BBOX.rw = BBOX.w + bbox.rw}
|
|
BBOX.w += bbox.w;
|
|
if (child.style.paddingRight) {BBOX.w += HTMLCSS.unEm(child.style.paddingRight)*(child.scale||1)}
|
|
if (bbox.width) {BBOX.width = bbox.width; BBOX.minWidth = bbox.minWidth}
|
|
if (bbox.ic) {BBOX.ic = bbox.ic} else {delete BBOX.ic}
|
|
if (BBOX.exactW && !bbox.exactW) {delete BBOX.exactW}
|
|
},
|
|
HTMLemptyBBox: function (BBOX) {
|
|
BBOX.h = BBOX.d = BBOX.H = BBOX.D = BBOX.rw = -HTMLCSS.BIGDIMEN;
|
|
BBOX.w = 0; BBOX.lw = HTMLCSS.BIGDIMEN;
|
|
return BBOX;
|
|
},
|
|
HTMLcleanBBox: function (BBOX) {
|
|
if (BBOX.h === this.BIGDIMEN)
|
|
{BBOX.h = BBOX.d = BBOX.H = BBOX.D = BBOX.w = BBOX.rw = BBOX.lw = 0}
|
|
if (BBOX.D <= BBOX.d) {delete BBOX.D}; if (BBOX.H <= BBOX.h) {delete BBOX.H}
|
|
},
|
|
HTMLzeroBBox: function () {return {h:0, d:0, w:0, lw: 0, rw:0}},
|
|
HTMLcanStretch: function (direction) {
|
|
if (this.isEmbellished()) {
|
|
var core = this.Core();
|
|
if (core && core !== this) {return core.HTMLcanStretch(direction)}
|
|
}
|
|
return false;
|
|
},
|
|
HTMLstretchH: function (box,W) {return this.HTMLspanElement()},
|
|
HTMLstretchV: function (box,h,d) {return this.HTMLspanElement()},
|
|
HTMLnotEmpty: function (data) {
|
|
while (data) {
|
|
if ((data.type !== "mrow" && data.type !== "texatom") ||
|
|
data.data.length > 1) {return true}
|
|
data = data.data[0];
|
|
}
|
|
return false;
|
|
},
|
|
|
|
HTMLmeasureChild: function (n,box) {
|
|
if (this.data[n]) {HTMLCSS.Measured(this.data[n].toHTML(box),box)}
|
|
else {box.bbox = this.HTMLzeroBBox()}
|
|
},
|
|
HTMLboxChild: function (n,box) {
|
|
if (!this.data[n]) {this.SetData(n,MML.mrow())}
|
|
return this.data[n].toHTML(box);
|
|
},
|
|
|
|
HTMLcreateSpan: function (span) {
|
|
if (this.spanID) {
|
|
var SPAN = this.HTMLspanElement();
|
|
if (SPAN && (SPAN.parentNode === span || (SPAN.parentNode||{}).parentNode === span)) {
|
|
while (SPAN.firstChild) {SPAN.removeChild(SPAN.firstChild)}
|
|
SPAN.bbox = this.HTMLzeroBBox();
|
|
SPAN.scale = 1; SPAN.isMultChar = SPAN.HH = null;
|
|
SPAN.style.cssText = "";
|
|
return SPAN;
|
|
}
|
|
}
|
|
if (this.href) {span = HTMLCSS.addElement(span,"a",{href:this.href, isMathJax:true})}
|
|
span = HTMLCSS.addElement(span,"span",{className: this.type, isMathJax:true});
|
|
if (HTMLCSS.imgHeightBug) {span.style.display = "inline-block"}
|
|
if (this["class"]) {span.className += " "+this["class"]}
|
|
if (!this.spanID) {this.spanID = HTMLCSS.GetID()}
|
|
span.id = (this.id || "MathJax-Span-"+this.spanID) + HTMLCSS.idPostfix;
|
|
span.bbox = this.HTMLzeroBBox(); this.styles = {};
|
|
if (this.style) {
|
|
span.style.cssText = this.style;
|
|
if (span.style.fontSize) {this.mathsize = span.style.fontSize; span.style.fontSize = ""}
|
|
this.styles = {border:HTMLCSS.getBorders(span), padding:HTMLCSS.getPadding(span)}
|
|
if (this.styles.border) {span.style.border = ""} // IE needs "0px none"?
|
|
if (this.styles.padding) {span.style.padding = ""}
|
|
}
|
|
if (this.href) {span.parentNode.bbox = span.bbox}
|
|
return span;
|
|
},
|
|
HTMLspanElement: function () {
|
|
if (!this.spanID) {return null}
|
|
return document.getElementById((this.id||"MathJax-Span-"+this.spanID)+HTMLCSS.idPostfix);
|
|
},
|
|
|
|
HTMLhandleVariant: function (span,variant,text) {HTMLCSS.handleVariant(span,variant,text)},
|
|
|
|
HTMLhandleSize: function (span) {
|
|
if (!span.scale) {
|
|
span.scale = this.HTMLgetScale();
|
|
if (span.scale !== 1) {span.style.fontSize = HTMLCSS.Percent(span.scale)}
|
|
}
|
|
return span;
|
|
},
|
|
|
|
HTMLhandleDir: function (span) {
|
|
var dir = this.Get("dir",true); // only get value if not the default
|
|
if (dir) {span.dir = dir}
|
|
return span;
|
|
},
|
|
|
|
HTMLhandleColor: function (span) {
|
|
var values = this.getValues("mathcolor","color");
|
|
if (this.mathbackground) {values.mathbackground = this.mathbackground}
|
|
if (this.background) {values.background = this.background}
|
|
if (this.style && span.style.backgroundColor) {
|
|
values.mathbackground = span.style.backgroundColor;
|
|
span.style.backgroundColor = "transparent";
|
|
}
|
|
var borders = (this.styles||{}).border, padding = (this.styles||{}).padding;
|
|
if (values.color && !this.mathcolor) {values.mathcolor = values.color}
|
|
if (values.background && !this.mathbackground) {values.mathbackground = values.background}
|
|
if (values.mathcolor) {span.style.color = values.mathcolor}
|
|
if ((values.mathbackground && values.mathbackground !== MML.COLOR.TRANSPARENT) ||
|
|
borders || padding) {
|
|
var bbox = span.bbox, dd = (bbox.exact ? 0 : 1/HTMLCSS.em), lW = 0, rW = 0,
|
|
lpad = span.style.paddingLeft, rpad = span.style.paddingRight;
|
|
if (this.isToken) {lW = bbox.lw; rW = bbox.rw - bbox.w}
|
|
if (lpad !== "") {lW += HTMLCSS.unEm(lpad)*(span.scale||1)}
|
|
if (rpad !== "") {rW -= HTMLCSS.unEm(rpad)*(span.scale||1)}
|
|
var dw = (HTMLCSS.PaddingWidthBug || bbox.keepPadding || bbox.exactW ? 0 : rW - lW);
|
|
var W = Math.max(0,HTMLCSS.getW(span) + dw);
|
|
var H = bbox.h + bbox.d, D = -bbox.d, lp = 0, rp = 0;
|
|
if (W > 0) {W += 2*dd; lW -= dd}; if (H > 0) {H += 2*dd; D -= dd}; rW = -W-lW;
|
|
if (borders) {
|
|
rW -= borders.right; D -= borders.bottom; lp += borders.left; rp += borders.right;
|
|
bbox.h += borders.top; bbox.d += borders.bottom;
|
|
bbox.w += borders.left + borders.right;
|
|
bbox.lw -= borders.left; bbox.rw += borders.right;
|
|
}
|
|
if (padding) {
|
|
H += padding.top + padding.bottom; W += padding.left + padding.right;
|
|
rW -= padding.right; D -= padding.bottom; lp += padding.left; rp += padding.right;
|
|
bbox.h += padding.top; bbox.d += padding.bottom;
|
|
bbox.w += padding.left + padding.right;
|
|
bbox.lw -= padding.left; bbox.rw += padding.right;
|
|
}
|
|
if (rp) {span.style.paddingRight = HTMLCSS.Em(rp)}
|
|
var frame = HTMLCSS.Element("span",{
|
|
id:"MathJax-Color-"+this.spanID+HTMLCSS.idPostfix, isMathJax: true,
|
|
style:{display:"inline-block", backgroundColor:values.mathbackground,
|
|
width: HTMLCSS.Em(W), height:HTMLCSS.Em(H), verticalAlign: HTMLCSS.Em(D),
|
|
marginLeft: HTMLCSS.Em(lW), marginRight: HTMLCSS.Em(rW)}
|
|
});
|
|
HTMLCSS.setBorders(frame,borders);
|
|
if (bbox.width) {frame.style.width = bbox.width; frame.style.marginRight = "-"+bbox.width}
|
|
if (HTMLCSS.msieInlineBlockAlignBug) {
|
|
// FIXME: handle variable width background
|
|
frame.style.position = "relative"; frame.style.width = frame.style.height = 0;
|
|
frame.style.verticalAlign = frame.style.marginLeft = frame.style.marginRight = "";
|
|
frame.style.border = frame.style.padding = "";
|
|
if (borders && HTMLCSS.msieBorderWidthBug)
|
|
{H += borders.top + borders.bottom; W += borders.left + borders.right}
|
|
frame.style.width = HTMLCSS.Em(lp+dd);
|
|
HTMLCSS.placeBox(HTMLCSS.addElement(frame,"span",{
|
|
noAdjust: true, isMathJax: true,
|
|
style: {display:"inline-block", position:"absolute", overflow:"hidden",
|
|
background:(values.mathbackground||"transparent"),
|
|
width: HTMLCSS.Em(W), height: HTMLCSS.Em(H)}
|
|
}),lW,bbox.h+dd);
|
|
HTMLCSS.setBorders(frame.firstChild,borders);
|
|
}
|
|
span.parentNode.insertBefore(frame,span);
|
|
if (HTMLCSS.msieColorPositionBug) {span.style.position = "relative"}
|
|
return frame;
|
|
}
|
|
return null;
|
|
},
|
|
HTMLremoveColor: function () {
|
|
var color = document.getElementById("MathJax-Color-"+this.spanID+HTMLCSS.idPostfix);
|
|
if (color) {color.parentNode.removeChild(color)}
|
|
},
|
|
|
|
HTMLhandleSpace: function (span) {
|
|
if (this.useMMLspacing) {
|
|
if (this.type !== "mo") return;
|
|
var values = this.getValues("scriptlevel","lspace","rspace");
|
|
if (values.scriptlevel <= 0 || this.hasValue("lspace") || this.hasValue("rspace")) {
|
|
var mu = this.HTMLgetMu(span);
|
|
values.lspace = Math.max(0,HTMLCSS.length2em(values.lspace,mu));
|
|
values.rspace = Math.max(0,HTMLCSS.length2em(values.rspace,mu));
|
|
var core = this, parent = this.Parent();
|
|
while (parent && parent.isEmbellished() && parent.Core() === core)
|
|
{core = parent; parent = parent.Parent(); span = core.HTMLspanElement()}
|
|
if (values.lspace) {span.style.paddingLeft = HTMLCSS.Em(values.lspace)}
|
|
if (values.rspace) {span.style.paddingRight = HTMLCSS.Em(values.rspace)}
|
|
}
|
|
} else {
|
|
var space = this.texSpacing();
|
|
if (space !== "") {
|
|
space = HTMLCSS.length2em(space,this.HTMLgetScale())/(span.scale||1);
|
|
if (span.style.paddingLeft) {space += HTMLCSS.unEm(span.style.paddingLeft)}
|
|
span.style.paddingLeft = HTMLCSS.Em(space);
|
|
}
|
|
}
|
|
},
|
|
|
|
HTMLgetScale: function () {
|
|
var scale = 1, values = this.getValues("mathsize","scriptlevel","fontsize");
|
|
if (this.style) {
|
|
var span = this.HTMLspanElement();
|
|
if (span.style.fontSize != "") {values.fontsize = span.style.fontSize}
|
|
}
|
|
if (values.fontsize && !this.mathsize) {values.mathsize = values.fontsize}
|
|
if (values.scriptlevel !== 0) {
|
|
if (values.scriptlevel > 2) {values.scriptlevel = 2}
|
|
scale = Math.pow(this.Get("scriptsizemultiplier"),values.scriptlevel);
|
|
values.scriptminsize = HTMLCSS.length2em(this.Get("scriptminsize"));
|
|
if (scale < values.scriptminsize) {scale = values.scriptminsize}
|
|
}
|
|
if (this.isToken) {scale *= HTMLCSS.length2em(values.mathsize)}
|
|
return scale;
|
|
},
|
|
HTMLgetMu: function (span) {
|
|
var mu = 1, values = this.getValues("scriptlevel","scriptsizemultiplier");
|
|
if (span.scale && span.scale !== 1) {mu = 1/span.scale}
|
|
if (values.scriptlevel !== 0) {
|
|
if (values.scriptlevel > 2) {values.scriptlevel = 2}
|
|
mu = Math.sqrt(Math.pow(values.scriptsizemultiplier,values.scriptlevel));
|
|
}
|
|
return mu;
|
|
},
|
|
|
|
HTMLgetVariant: function () {
|
|
var values = this.getValues("mathvariant","fontfamily","fontweight","fontstyle");
|
|
values.hasVariant = this.Get("mathvariant",true); // null if not explicitly specified
|
|
if (!values.hasVariant) {
|
|
values.family = values.fontfamily;
|
|
values.weight = values.fontweight;
|
|
values.style = values.fontstyle;
|
|
}
|
|
if (this.style) {
|
|
var span = this.HTMLspanElement();
|
|
if (!values.family && span.style.fontFamily) {values.family = span.style.fontFamily}
|
|
if (!values.weight && span.style.fontWeight) {values.weight = span.style.fontWeight}
|
|
if (!values.style && span.style.fontStyle) {values.style = span.style.fontStyle}
|
|
}
|
|
if (values.weight && values.weight.match(/^\d+$/))
|
|
{values.weight = (parseInt(values.weight) > 600 ? "bold" : "normal")}
|
|
var variant = values.mathvariant; if (this.variantForm) {variant = "-"+HTMLCSS.fontInUse+"-variant"}
|
|
if (values.family && !values.hasVariant) {
|
|
if (!values.weight && values.mathvariant.match(/bold/)) {values.weight = "bold"}
|
|
if (!values.style && values.mathvariant.match(/italic/)) {values.style = "italic"}
|
|
return {FONTS:[], fonts:[], noRemap:true,
|
|
defaultFont: {family:values.family, style:values.style, weight:values.weight}};
|
|
}
|
|
if (values.weight === "bold") {
|
|
variant = {
|
|
normal:MML.VARIANT.BOLD, italic:MML.VARIANT.BOLDITALIC,
|
|
fraktur:MML.VARIANT.BOLDFRAKTUR, script:MML.VARIANT.BOLDSCRIPT,
|
|
"sans-serif":MML.VARIANT.BOLDSANSSERIF,
|
|
"sans-serif-italic":MML.VARIANT.SANSSERIFBOLDITALIC
|
|
}[variant]||variant;
|
|
} else if (values.weight === "normal") {
|
|
variant = {
|
|
bold:MML.VARIANT.normal, "bold-italic":MML.VARIANT.ITALIC,
|
|
"bold-fraktur":MML.VARIANT.FRAKTUR, "bold-script":MML.VARIANT.SCRIPT,
|
|
"bold-sans-serif":MML.VARIANT.SANSSERIF,
|
|
"sans-serif-bold-italic":MML.VARIANT.SANSSERIFITALIC
|
|
}[variant]||variant;
|
|
}
|
|
if (values.style === "italic") {
|
|
variant = {
|
|
normal:MML.VARIANT.ITALIC, bold:MML.VARIANT.BOLDITALIC,
|
|
"sans-serif":MML.VARIANT.SANSSERIFITALIC,
|
|
"bold-sans-serif":MML.VARIANT.SANSSERIFBOLDITALIC
|
|
}[variant]||variant;
|
|
} else if (values.style === "normal") {
|
|
variant = {
|
|
italic:MML.VARIANT.NORMAL, "bold-italic":MML.VARIANT.BOLD,
|
|
"sans-serif-italic":MML.VARIANT.SANSSERIF,
|
|
"sans-serif-bold-italic":MML.VARIANT.BOLDSANSSERIF
|
|
}[variant]||variant;
|
|
}
|
|
if (!(variant in HTMLCSS.FONTDATA.VARIANT)) {
|
|
// If the mathvariant value is invalid or not supported by this
|
|
// font, fallback to normal. See issue 363.
|
|
variant = "normal";
|
|
}
|
|
return HTMLCSS.FONTDATA.VARIANT[variant];
|
|
}
|
|
},{
|
|
HTMLautoload: function () {
|
|
var file = HTMLCSS.autoloadDir+"/"+this.type+".js";
|
|
HUB.RestartAfter(AJAX.Require(file));
|
|
},
|
|
HTMLautoloadFile: function (name) {
|
|
var file = HTMLCSS.autoloadDir+"/"+name+".js";
|
|
HUB.RestartAfter(AJAX.Require(file));
|
|
},
|
|
|
|
HTMLstretchH: function (box,w) {
|
|
this.HTMLremoveColor();
|
|
return this.toHTML(box,w);
|
|
},
|
|
|
|
HTMLstretchV: function (box,h,d) {
|
|
this.HTMLremoveColor();
|
|
return this.toHTML(box,h,d);
|
|
}
|
|
});
|
|
|
|
MML.chars.Augment({
|
|
toHTML: function (span,variant,remap,chars) {
|
|
var text = this.data.join("").replace(/[\u2061-\u2064]/g,""); // remove invisibles
|
|
if (remap) {text = remap(text,chars)}
|
|
if (variant.fontInherit) {
|
|
var scale = Math.floor(100/HTMLCSS.scale+.5) + "%";
|
|
HTMLCSS.addElement(span,"span",{style:{"font-size":scale}},[text]);
|
|
if (variant.bold) {span.lastChild.style.fontWeight = "bold"}
|
|
if (variant.italic) {span.lastChild.style.fontStyle = "italic"}
|
|
var HD = HTMLCSS.getHD(span), W = HTMLCSS.getW(span);
|
|
span.bbox = {h:HD.h, d:HD.d, w:W, lw:0, rw:W, exactW: true};
|
|
} else {
|
|
this.HTMLhandleVariant(span,variant,text);
|
|
}
|
|
}
|
|
});
|
|
MML.entity.Augment({
|
|
toHTML: function (span,variant,remap,chars) {
|
|
var text = this.toString().replace(/[\u2061-\u2064]/g,""); // remove invisibles
|
|
if (remap) {text = remap(text,chars)}
|
|
if (variant.fontInherit) {
|
|
var scale = Math.floor(100/HTMLCSS.scale+.5) + "%";
|
|
HTMLCSS.addElement(span,"span",{style:{"font-size":scale}},[text]);
|
|
if (variant.bold) {span.lastChild.style.fontWeight = "bold"}
|
|
if (variant.italic) {span.lastChild.style.fontStyle = "italic"}
|
|
var HD = HTMLCSS.getHD(span), W = HTMLCSS.getW(span);
|
|
span.bbox = {h:HD.h, d:HD.d, w:W, lw:0, rw:W, exactW: true};
|
|
} else {
|
|
this.HTMLhandleVariant(span,variant,text);
|
|
}
|
|
}
|
|
});
|
|
|
|
MML.mi.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLhandleSize(this.HTMLcreateSpan(span)); span.bbox = null;
|
|
var variant = this.HTMLgetVariant();
|
|
for (var i = 0, m = this.data.length; i < m; i++)
|
|
{if (this.data[i]) {this.data[i].toHTML(span,variant)}}
|
|
if (!span.bbox) {span.bbox = this.HTMLzeroBBox()}
|
|
var text = this.data.join(""), bbox = span.bbox;
|
|
if (bbox.skew && text.length !== 1) {delete bbox.skew}
|
|
if (bbox.rw > bbox.w && text.length === 1 && !variant.noIC) {
|
|
bbox.ic = bbox.rw - bbox.w;
|
|
HTMLCSS.createBlank(span,bbox.ic);
|
|
bbox.w = bbox.rw;
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
this.HTMLhandleDir(span);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mn.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLhandleSize(this.HTMLcreateSpan(span)); span.bbox = null;
|
|
var variant = this.HTMLgetVariant();
|
|
for (var i = 0, m = this.data.length; i < m; i++)
|
|
{if (this.data[i]) {this.data[i].toHTML(span,variant)}}
|
|
if (!span.bbox) {span.bbox = this.HTMLzeroBBox()}
|
|
if (this.data.join("").length !== 1) {delete span.bbox.skew}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
this.HTMLhandleDir(span);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mo.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLhandleSize(this.HTMLcreateSpan(span));
|
|
if (this.data.length == 0) {return span} else {span.bbox = null}
|
|
var text = this.data.join("");
|
|
//
|
|
// Get the variant, and check for operator size
|
|
//
|
|
var variant = this.HTMLgetVariant();
|
|
var values = this.getValues("largeop","displaystyle");
|
|
if (values.largeop)
|
|
{variant = HTMLCSS.FONTDATA.VARIANT[values.displaystyle ? "-largeOp" : "-smallOp"]}
|
|
//
|
|
// Get character translation for superscript and accents
|
|
//
|
|
var parent = this.CoreParent(),
|
|
isScript = (parent && parent.isa(MML.msubsup) && this !== parent.data[parent.base]),
|
|
mapchars = (isScript?this.HTMLremapChars:null);
|
|
if (text.length === 1 && parent && parent.isa(MML.munderover) &&
|
|
this.CoreText(parent.data[parent.base]).length === 1) {
|
|
var over = parent.data[parent.over], under = parent.data[parent.under];
|
|
if (over && this === over.CoreMO() && parent.Get("accent")) {mapchars = HTMLCSS.FONTDATA.REMAPACCENT}
|
|
else if (under && this === under.CoreMO() && parent.Get("accentunder")) {mapchars = HTMLCSS.FONTDATA.REMAPACCENTUNDER}
|
|
}
|
|
//
|
|
// STIX and TeX fonts need quotes from variant font
|
|
//
|
|
if (isScript && text.match(/['`"\u00B4\u2032-\u2037\u2057]/))
|
|
{variant = HTMLCSS.FONTDATA.VARIANT["-"+HTMLCSS.fontInUse+"-variant"]}
|
|
//
|
|
// Typeset contents
|
|
//
|
|
for (var i = 0, m = this.data.length; i < m; i++)
|
|
{if (this.data[i]) {this.data[i].toHTML(span,variant,this.HTMLremap,mapchars)}}
|
|
if (!span.bbox) {span.bbox = this.HTMLzeroBBox()}
|
|
if (text.length !== 1) {delete span.bbox.skew}
|
|
//
|
|
// Handle combining characters by adding a non-breaking space and removing that width
|
|
//
|
|
if (HTMLCSS.AccentBug && span.bbox.w === 0 && text.length === 1 && span.firstChild) {
|
|
span.firstChild.nodeValue += HTMLCSS.NBSP;
|
|
HTMLCSS.createSpace(span,0,0,-span.offsetWidth/HTMLCSS.em);
|
|
}
|
|
//
|
|
// Handle large operator centering
|
|
//
|
|
if (values.largeop) {
|
|
var p = (span.bbox.h - span.bbox.d)/2 - HTMLCSS.TeX.axis_height*span.scale;
|
|
if (HTMLCSS.safariVerticalAlignBug && span.lastChild.nodeName === "IMG") {
|
|
span.lastChild.style.verticalAlign =
|
|
HTMLCSS.Em(HTMLCSS.unEm(span.lastChild.style.verticalAlign||0)/HTMLCSS.em-p/span.scale);
|
|
} else if (HTMLCSS.konquerorVerticalAlignBug && span.lastChild.nodeName === "IMG") {
|
|
span.style.position = "relative";
|
|
span.lastChild.style.position="relative";
|
|
span.lastChild.style.top = HTMLCSS.Em(p/span.scale);
|
|
} else {
|
|
span.style.verticalAlign = HTMLCSS.Em(-p/span.scale);
|
|
}
|
|
span.bbox.h -= p; span.bbox.d += p;
|
|
if (span.bbox.rw > span.bbox.w) {
|
|
span.bbox.ic = span.bbox.rw-span.bbox.w;
|
|
HTMLCSS.createBlank(span,span.bbox.ic);
|
|
span.bbox.w = span.bbox.rw;
|
|
}
|
|
}
|
|
//
|
|
// Finish up
|
|
//
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
this.HTMLhandleDir(span);
|
|
return span;
|
|
},
|
|
CoreParent: function () {
|
|
var parent = this;
|
|
while (parent && parent.isEmbellished() &&
|
|
parent.CoreMO() === this && !parent.isa(MML.math)) {parent = parent.Parent()}
|
|
return parent;
|
|
},
|
|
CoreText: function (parent) {
|
|
if (!parent) {return ""}
|
|
if (parent.isEmbellished()) {return parent.CoreMO().data.join("")}
|
|
while ((parent.isa(MML.mrow) || parent.isa(MML.TeXAtom) ||
|
|
parent.isa(MML.mstyle) || parent.isa(MML.mphantom)) &&
|
|
parent.data.length === 1 && parent.data[0]) {parent = parent.data[0]}
|
|
if (!parent.isToken) {return ""} else {return parent.data.join("")}
|
|
},
|
|
HTMLremapChars: {
|
|
'*':"\u2217",
|
|
'"':"\u2033",
|
|
"\u00B0":"\u2218",
|
|
"\u00B2":"2",
|
|
"\u00B3":"3",
|
|
"\u00B4":"\u2032",
|
|
"\u00B9":"1"
|
|
},
|
|
HTMLremap: function (text,map) {
|
|
text = text.replace(/-/g,"\u2212");
|
|
if (map) {
|
|
text = text.replace(/'/g,"\u2032").replace(/`/g,"\u2035");
|
|
if (text.length === 1) {text = map[text]||text}
|
|
}
|
|
return text;
|
|
},
|
|
HTMLcanStretch: function (direction) {
|
|
if (!this.Get("stretchy")) {return false}
|
|
var c = this.data.join("");
|
|
if (c.length > 1) {return false}
|
|
var parent = this.CoreParent();
|
|
if (parent && parent.isa(MML.munderover) &&
|
|
this.CoreText(parent.data[parent.base]).length === 1) {
|
|
var over = parent.data[parent.over], under = parent.data[parent.under];
|
|
if (over && this === over.CoreMO() && parent.Get("accent")) {c = HTMLCSS.FONTDATA.REMAPACCENT[c]||c}
|
|
else if (under && this === under.CoreMO() && parent.Get("accentunder")) {c = HTMLCSS.FONTDATA.REMAPACCENTUNDER[c]||c}
|
|
}
|
|
c = HTMLCSS.FONTDATA.DELIMITERS[c.charCodeAt(0)];
|
|
return (c && c.dir == direction.substr(0,1));
|
|
},
|
|
HTMLstretchV: function (box,h,d) {
|
|
this.HTMLremoveColor();
|
|
var values = this.getValues("symmetric","maxsize","minsize");
|
|
var span = this.HTMLspanElement(), mu = this.HTMLgetMu(span), H;
|
|
var axis = HTMLCSS.TeX.axis_height, scale = span.scale;
|
|
if (values.symmetric) {H = 2*Math.max(h-axis,d+axis)} else {H = h + d}
|
|
values.maxsize = HTMLCSS.length2em(values.maxsize,mu,span.bbox.h+span.bbox.d);
|
|
values.minsize = HTMLCSS.length2em(values.minsize,mu,span.bbox.h+span.bbox.d);
|
|
H = Math.max(values.minsize,Math.min(values.maxsize,H));
|
|
span = this.HTMLcreateSpan(box); // clear contents and attributes
|
|
HTMLCSS.createDelimiter(span,this.data.join("").charCodeAt(0),H,scale);
|
|
if (values.symmetric) {H = (span.bbox.h + span.bbox.d)/2 + axis}
|
|
else {H = (span.bbox.h + span.bbox.d) * h/(h + d)}
|
|
HTMLCSS.positionDelimiter(span,H);
|
|
this.HTMLhandleSpace(span); // add in lspace/rspace, if any
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLstretchH: function (box,W) {
|
|
this.HTMLremoveColor();
|
|
var values = this.getValues("maxsize","minsize","mathvariant","fontweight");
|
|
// FIXME: should take style="font-weight:bold" into account as well
|
|
if ((values.fontweight === "bold" || parseInt(values.fontweight) >= 600) &&
|
|
!this.Get("mathvariant",true)) {values.mathvariant = MML.VARIANT.BOLD}
|
|
var span = this.HTMLspanElement(), mu = this.HTMLgetMu(span), scale = span.scale;
|
|
values.maxsize = HTMLCSS.length2em(values.maxsize,mu,span.bbox.w);
|
|
values.minsize = HTMLCSS.length2em(values.minsize,mu,span.bbox.w);
|
|
W = Math.max(values.minsize,Math.min(values.maxsize,W));
|
|
span = this.HTMLcreateSpan(box); // clear contents and attributes
|
|
HTMLCSS.createDelimiter(span,this.data.join("").charCodeAt(0),W,scale,values.mathvariant);
|
|
this.HTMLhandleSpace(span); // add in lspace/rspace, if any
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mtext.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLhandleSize(this.HTMLcreateSpan(span));
|
|
var variant = this.HTMLgetVariant();
|
|
// Avoid setting the font style for error text or if mtextFontInherit is set
|
|
if (HTMLCSS.config.mtextFontInherit || this.Parent().type === "merror")
|
|
{variant = {bold:variant.bold, italic:variant.italic, fontInherit: true}}
|
|
for (var i = 0, m = this.data.length; i < m; i++)
|
|
{if (this.data[i]) {this.data[i].toHTML(span,variant)}}
|
|
if (!span.bbox) {span.bbox = this.HTMLzeroBBox()}
|
|
if (this.data.join("").length !== 1) {delete span.bbox.skew}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
this.HTMLhandleDir(span);
|
|
return span;
|
|
}
|
|
});
|
|
MML.merror.Augment({
|
|
toHTML: function (span) {
|
|
//
|
|
// Width doesn't include padding and border, so use an extra inline block
|
|
// element to capture it.
|
|
//
|
|
var SPAN = MathJax.HTML.addElement(span,"span",{style:{display:"inline-block"}});
|
|
span = this.SUPER(arguments).toHTML.call(this,SPAN);
|
|
var HD = HTMLCSS.getHD(SPAN), W = HTMLCSS.getW(SPAN);
|
|
SPAN.bbox = {h:HD.h, d:HD.d, w:W, lw:0, rw:W, exactW: true};
|
|
SPAN.id = span.id; span.id = null;
|
|
return SPAN;
|
|
}
|
|
});
|
|
|
|
MML.ms.Augment({toHTML: MML.mbase.HTMLautoload});
|
|
|
|
MML.mglyph.Augment({toHTML: MML.mbase.HTMLautoload});
|
|
|
|
MML.mspace.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLcreateSpan(span);
|
|
var values = this.getValues("height","depth","width");
|
|
var mu = this.HTMLgetMu(span);
|
|
values.mathbackground = this.mathbackground;
|
|
if (this.background && !this.mathbackground) {values.mathbackground = this.background}
|
|
var h = HTMLCSS.length2em(values.height,mu),
|
|
d = HTMLCSS.length2em(values.depth,mu),
|
|
w = HTMLCSS.length2em(values.width,mu);
|
|
HTMLCSS.createSpace(span,h,d,w,values.mathbackground,true);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mphantom.Augment({
|
|
toHTML: function (span,HW,D) {
|
|
span = this.HTMLcreateSpan(span);
|
|
if (this.data[0] != null) {
|
|
var box = this.data[0].toHTML(span);
|
|
if (D != null) {HTMLCSS.Remeasured(this.data[0].HTMLstretchV(span,HW,D),span)}
|
|
else if (HW != null) {HTMLCSS.Remeasured(this.data[0].HTMLstretchH(span,HW),span)}
|
|
else {box = HTMLCSS.Measured(box,span)}
|
|
span.bbox = {w: box.bbox.w, h: box.bbox.h, d: box.bbox.d, lw: 0, rw: 0, exactW: true};
|
|
for (var i = 0, m = span.childNodes.length; i < m; i++)
|
|
{span.childNodes[i].style.visibility = "hidden"}
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLstretchH: MML.mbase.HTMLstretchH,
|
|
HTMLstretchV: MML.mbase.HTMLstretchV
|
|
});
|
|
|
|
MML.mpadded.Augment({
|
|
toHTML: function (span,HW,D) {
|
|
span = this.HTMLcreateSpan(span);
|
|
if (this.data[0] != null) {
|
|
var stack = HTMLCSS.createStack(span,true);
|
|
var box = HTMLCSS.createBox(stack);
|
|
var child = this.data[0].toHTML(box);
|
|
if (D != null) {HTMLCSS.Remeasured(this.data[0].HTMLstretchV(box,HW,D),box)}
|
|
else if (HW != null) {HTMLCSS.Remeasured(this.data[0].HTMLstretchH(box,HW),box)}
|
|
else {HTMLCSS.Measured(child,box)}
|
|
var values = this.getValues("height","depth","width","lspace","voffset"),
|
|
x = 0, y = 0, mu = this.HTMLgetMu(span);
|
|
if (values.lspace) {x = this.HTMLlength2em(box,values.lspace,mu)}
|
|
if (values.voffset) {y = this.HTMLlength2em(box,values.voffset,mu)}
|
|
HTMLCSS.placeBox(box,x,y);
|
|
span.bbox = {
|
|
h: box.bbox.h, d: box.bbox.d, w: box.bbox.w, exactW: true,
|
|
lw: Math.min(0,box.bbox.lw+x), rw: Math.max(box.bbox.w,box.bbox.rw+x),
|
|
H: Math.max((box.bbox.H == null ? -HTMLCSS.BIGDIMEN : box.bbox.H),box.bbox.h+y),
|
|
D: Math.max((box.bbox.D == null ? -HTMLCSS.BIGDIMEN : box.bbox.D),box.bbox.d-y)
|
|
};
|
|
if (values.height !== "") {span.bbox.h = this.HTMLlength2em(box,values.height,mu,"h",0)}
|
|
if (values.depth !== "") {span.bbox.d = this.HTMLlength2em(box,values.depth,mu,"d",0)}
|
|
if (values.width !== "") {span.bbox.w = this.HTMLlength2em(box,values.width,mu,"w",0)}
|
|
if (span.bbox.H <= span.bbox.h) {delete span.bbox.H}
|
|
if (span.bbox.D <= span.bbox.d) {delete span.bbox.D}
|
|
var dimen = /^\s*(\d+(\.\d*)?|\.\d+)\s*(pt|em|ex|mu|px|pc|in|mm|cm)\s*$/
|
|
span.bbox.exact = !!((this.data[0] && this.data[0].data.length == 0) ||
|
|
dimen.exec(values.height) || dimen.exec(values.width) || dimen.exec(values.depth));
|
|
HTMLCSS.setStackWidth(stack,span.bbox.w);
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLlength2em: function (span,length,mu,d,m) {
|
|
if (m == null) {m = -HTMLCSS.BIGDIMEN}
|
|
var match = String(length).match(/width|height|depth/);
|
|
var size = (match ? span.bbox[match[0].charAt(0)] : (d ? span.bbox[d] : 0));
|
|
var v = HTMLCSS.length2em(length,mu,size);
|
|
if (d && String(length).match(/^\s*[-+]/))
|
|
{return Math.max(m,span.bbox[d]+v)} else {return v}
|
|
},
|
|
HTMLstretchH: MML.mbase.HTMLstretchH,
|
|
HTMLstretchV: MML.mbase.HTMLstretchV
|
|
});
|
|
|
|
MML.mrow.Augment({
|
|
HTMLlineBreaks: function (span) {
|
|
if (!this.parent.linebreakContainer) {return false}
|
|
return (HTMLCSS.config.linebreaks.automatic &&
|
|
span.bbox.w > HTMLCSS.linebreakWidth) || this.hasNewline();
|
|
},
|
|
HTMLstretchH: function (box,w) {
|
|
this.HTMLremoveColor();
|
|
var span = this.HTMLspanElement();
|
|
this.data[this.core].HTMLstretchH(span,w);
|
|
this.HTMLcomputeBBox(span,true);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLstretchV: function (box,h,d) {
|
|
this.HTMLremoveColor();
|
|
var span = this.HTMLspanElement();
|
|
this.data[this.core].HTMLstretchV(span,h,d);
|
|
this.HTMLcomputeBBox(span,true);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
MML.mstyle.Augment({
|
|
toHTML: function (span,HW,D) {
|
|
span = this.HTMLcreateSpan(span);
|
|
if (this.data[0] != null) {
|
|
var SPAN = this.data[0].toHTML(span);
|
|
if (D != null) {this.data[0].HTMLstretchV(span,HW,D)}
|
|
else if (HW != null) {this.data[0].HTMLstretchH(span,HW)}
|
|
span.bbox = SPAN.bbox;
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLstretchH: MML.mbase.HTMLstretchH,
|
|
HTMLstretchV: MML.mbase.HTMLstretchV
|
|
});
|
|
|
|
MML.mfrac.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLcreateSpan(span);
|
|
var frac = HTMLCSS.createStack(span);
|
|
var num = HTMLCSS.createBox(frac), den = HTMLCSS.createBox(frac);
|
|
HTMLCSS.MeasureSpans([this.HTMLboxChild(0,num),this.HTMLboxChild(1,den)]);
|
|
var values = this.getValues("displaystyle","linethickness","numalign","denomalign","bevelled");
|
|
var scale = this.HTMLgetScale(), isDisplay = values.displaystyle;
|
|
var a = HTMLCSS.TeX.axis_height * scale;
|
|
if (values.bevelled) {
|
|
var delta = (isDisplay ? .4 : .15);
|
|
var H = Math.max(num.bbox.h+num.bbox.d,den.bbox.h+den.bbox.d)+2*delta;
|
|
var bevel = HTMLCSS.createBox(frac);
|
|
HTMLCSS.createDelimiter(bevel,0x2F,H);
|
|
HTMLCSS.placeBox(num,0,(num.bbox.d-num.bbox.h)/2+a+delta);
|
|
HTMLCSS.placeBox(bevel,num.bbox.w-delta/2,(bevel.bbox.d-bevel.bbox.h)/2+a);
|
|
HTMLCSS.placeBox(den,num.bbox.w+bevel.bbox.w-delta,(den.bbox.d-den.bbox.h)/2+a-delta);
|
|
} else {
|
|
var W = Math.max(num.bbox.w,den.bbox.w);
|
|
var t = HTMLCSS.thickness2em(values.linethickness,scale), p,q, u,v;
|
|
var mt = HTMLCSS.TeX.min_rule_thickness/this.em;
|
|
if (isDisplay) {u = HTMLCSS.TeX.num1; v = HTMLCSS.TeX.denom1}
|
|
else {u = (t === 0 ? HTMLCSS.TeX.num3 : HTMLCSS.TeX.num2); v = HTMLCSS.TeX.denom2}
|
|
u *= scale; v *= scale;
|
|
if (t === 0) {// \atop
|
|
p = Math.max((isDisplay ? 7 : 3) * HTMLCSS.TeX.rule_thickness, 2*mt); // force to at least 2 px
|
|
q = (u - num.bbox.d) - (den.bbox.h - v);
|
|
if (q < p) {u += (p - q)/2; v += (p - q)/2}
|
|
} else {// \over
|
|
p = Math.max((isDisplay ? 2 : 0) * mt + t, t/2 + 1.5*mt); // force to be at least 1.5px
|
|
q = (u - num.bbox.d) - (a + t/2); if (q < p) {u += p - q}
|
|
q = (a - t/2) - (den.bbox.h - v); if (q < p) {v += p - q}
|
|
var rule = HTMLCSS.createBox(frac);
|
|
HTMLCSS.createRule(rule,t,0,W+2*t);
|
|
HTMLCSS.placeBox(rule,0,a-t/2);
|
|
}
|
|
HTMLCSS.alignBox(num,values.numalign,u);
|
|
HTMLCSS.alignBox(den,values.denomalign,-v);
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLcanStretch: function (direction) {return false},
|
|
HTMLhandleSpace: function (span) {
|
|
if (!this.texWithDelims) {
|
|
var space = (this.useMMLspacing ? 0 : HTMLCSS.length2em(this.texSpacing()||0)) + .12;
|
|
span.style.paddingLeft = HTMLCSS.Em(space);
|
|
span.style.paddingRight = HTMLCSS.Em(.12);
|
|
}
|
|
}
|
|
});
|
|
|
|
MML.msqrt.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLcreateSpan(span);
|
|
var sqrt = HTMLCSS.createStack(span);
|
|
var base = HTMLCSS.createBox(sqrt),
|
|
rule = HTMLCSS.createBox(sqrt),
|
|
surd = HTMLCSS.createBox(sqrt);
|
|
var scale = this.HTMLgetScale();
|
|
var t = HTMLCSS.TeX.rule_thickness * scale, p,q, H, W;
|
|
if (this.Get("displaystyle")) {p = HTMLCSS.TeX.x_height * scale} else {p = t}
|
|
q = Math.max(t + p/4,1.5*HTMLCSS.TeX.min_rule_thickness/this.em); // force to be at least 1px
|
|
var BASE = this.HTMLboxChild(0,base);
|
|
H = BASE.bbox.h + BASE.bbox.d + q + t;
|
|
HTMLCSS.createDelimiter(surd,0x221A,H,scale);
|
|
HTMLCSS.MeasureSpans([BASE,surd]);
|
|
W = BASE.bbox.w;
|
|
var x = 0;
|
|
if (surd.isMultiChar || (HTMLCSS.AdjustSurd && HTMLCSS.imgFonts)) {surd.bbox.w *= .95}
|
|
if (surd.bbox.h + surd.bbox.d > H) {q = ((surd.bbox.h+surd.bbox.d) - (H-t))/2}
|
|
var ruleC = HTMLCSS.FONTDATA.DELIMITERS[HTMLCSS.FONTDATA.RULECHAR];
|
|
if (!ruleC || W < ruleC.HW[0][0]*scale || scale < .75) {
|
|
HTMLCSS.createRule(rule,0,t,W);
|
|
} else {
|
|
HTMLCSS.createDelimiter(rule,HTMLCSS.FONTDATA.RULECHAR,W,scale);
|
|
}
|
|
H = BASE.bbox.h + q + t;
|
|
q = H*HTMLCSS.rfuzz; if (surd.isMultiChar) {q = HTMLCSS.rfuzz}
|
|
x = this.HTMLaddRoot(sqrt,surd,x,surd.bbox.h+surd.bbox.d-H,scale);
|
|
HTMLCSS.placeBox(surd,x,H-surd.bbox.h);
|
|
HTMLCSS.placeBox(rule,x+surd.bbox.w,H-rule.bbox.h+q);
|
|
HTMLCSS.placeBox(base,x+surd.bbox.w,0);
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLaddRoot: function (sqrt,surd,x,d,scale) {return x}
|
|
});
|
|
|
|
MML.mroot.Augment({
|
|
toHTML: MML.msqrt.prototype.toHTML,
|
|
HTMLaddRoot: function (sqrt,surd,x,d,scale) {
|
|
var box = HTMLCSS.createBox(sqrt);
|
|
if (this.data[1]) {
|
|
var root = this.data[1].toHTML(box);
|
|
root.style.paddingRight = root.style.paddingLeft = ""; // remove extra padding, if any
|
|
HTMLCSS.Measured(root,box);
|
|
} else {box.bbox = this.HTMLzeroBBox()}
|
|
var h = this.HTMLrootHeight(surd.bbox.h+surd.bbox.d,scale,box)-d;
|
|
var w = Math.min(box.bbox.w,box.bbox.rw); // remove extra right-hand padding, if any
|
|
x = Math.max(w,surd.offset);
|
|
HTMLCSS.placeBox(box,x-w,h);
|
|
return x - surd.offset;
|
|
},
|
|
HTMLrootHeight: function (d,scale,root) {
|
|
return .45*(d-.9*scale)+.6*scale + Math.max(0,root.bbox.d-.075);
|
|
}
|
|
});
|
|
|
|
MML.mfenced.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLcreateSpan(span);
|
|
if (this.data.open) {this.data.open.toHTML(span)}
|
|
if (this.data[0] != null) {this.data[0].toHTML(span)}
|
|
for (var i = 1, m = this.data.length; i < m; i++) {
|
|
if (this.data[i]) {
|
|
if (this.data["sep"+i]) {this.data["sep"+i].toHTML(span)}
|
|
this.data[i].toHTML(span);
|
|
}
|
|
}
|
|
if (this.data.close) {this.data.close.toHTML(span)}
|
|
var stretchy = this.HTMLcomputeBBox(span);
|
|
var h = span.bbox.h, d = span.bbox.d;
|
|
for (i = 0, m = stretchy.length; i < m; i++) {stretchy[i].HTMLstretchV(span,h,d)}
|
|
if (stretchy.length) {this.HTMLcomputeBBox(span,true)}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLcomputeBBox: function (span,full) {
|
|
var BBOX = span.bbox = {}, stretchy = [];
|
|
this.HTMLcheckStretchy(this.data.open,BBOX,stretchy,full);
|
|
this.HTMLcheckStretchy(this.data[0],BBOX,stretchy,full);
|
|
for (var i = 1, m = this.data.length; i < m; i++) {
|
|
if (this.data[i]) {
|
|
this.HTMLcheckStretchy(this.data["sep"+i],BBOX,stretchy,full);
|
|
this.HTMLcheckStretchy(this.data[i],BBOX,stretchy,full);
|
|
}
|
|
}
|
|
this.HTMLcheckStretchy(this.data.close,BBOX,stretchy,full);
|
|
this.HTMLcleanBBox(BBOX);
|
|
return stretchy;
|
|
},
|
|
HTMLcheckStretchy: function (core,BBOX,stretchy,full) {
|
|
if (core) {
|
|
if (!full && core.HTMLcanStretch("Vertical"))
|
|
{stretchy.push(core); core = (core.CoreMO()||core)}
|
|
this.HTMLcombineBBoxes(core,BBOX);
|
|
}
|
|
}
|
|
});
|
|
|
|
MML.menclose.Augment({toHTML: MML.mbase.HTMLautoload});
|
|
MML.maction.Augment({toHTML: MML.mbase.HTMLautoload});
|
|
|
|
MML.semantics.Augment({
|
|
toHTML: function (span,HW,D) {
|
|
span = this.HTMLcreateSpan(span);
|
|
if (this.data[0] != null) {
|
|
var SPAN = this.data[0].toHTML(span);
|
|
if (D != null) {this.data[0].HTMLstretchV(span,HW,D)}
|
|
else if (HW != null) {this.data[0].HTMLstretchH(span,HW)}
|
|
span.bbox = SPAN.bbox;
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
return span;
|
|
},
|
|
HTMLstretchH: MML.mbase.HTMLstretchH,
|
|
HTMLstretchV: MML.mbase.HTMLstretchV
|
|
});
|
|
|
|
MML.munderover.Augment({
|
|
toHTML: function (span,HW,D) {
|
|
var values = this.getValues("displaystyle","accent","accentunder","align");
|
|
if (!values.displaystyle && this.data[this.base] != null &&
|
|
this.data[this.base].CoreMO().Get("movablelimits"))
|
|
{return MML.msubsup.prototype.toHTML.call(this,span)}
|
|
span = this.HTMLcreateSpan(span); var scale = this.HTMLgetScale();
|
|
var stack = HTMLCSS.createStack(span);
|
|
var boxes = [], children = [], stretch = [], box, i, m;
|
|
for (i = 0, m = this.data.length; i < m; i++) {
|
|
if (this.data[i] != null) {
|
|
box = boxes[i] = HTMLCSS.createBox(stack);
|
|
children[i] = this.data[i].toHTML(box);
|
|
if (i == this.base) {
|
|
if (D != null) {this.data[this.base].HTMLstretchV(box,HW,D)}
|
|
else if (HW != null) {this.data[this.base].HTMLstretchH(box,HW)}
|
|
stretch[i] = (D == null && HW != null ? false :
|
|
this.data[i].HTMLcanStretch("Horizontal"));
|
|
} else {
|
|
stretch[i] = this.data[i].HTMLcanStretch("Horizontal");
|
|
}
|
|
}
|
|
}
|
|
HTMLCSS.MeasureSpans(children);
|
|
var W = -HTMLCSS.BIGDIMEN, WW = W;
|
|
for (i = 0, m = this.data.length; i < m; i++) {
|
|
if (this.data[i]) {
|
|
if (boxes[i].bbox.w > WW) {WW = boxes[i].bbox.w}
|
|
if (!stretch[i] && WW > W) {W = WW}
|
|
}
|
|
}
|
|
if (D == null && HW != null) {W = HW} else if (W == -HTMLCSS.BIGDIMEN) {W = WW}
|
|
for (i = WW = 0, m = this.data.length; i < m; i++) {if (this.data[i]) {
|
|
box = boxes[i];
|
|
if (stretch[i]) {box.bbox = this.data[i].HTMLstretchH(box,W).bbox}
|
|
if (box.bbox.w > WW) {WW = box.bbox.w}
|
|
}}
|
|
var t = HTMLCSS.TeX.rule_thickness, factor = HTMLCSS.FONTDATA.TeX_factor;
|
|
var base = boxes[this.base] || {bbox: this.HTMLzeroBBox()};
|
|
var x, y, z1, z2, z3, dw, k, delta = 0;
|
|
if (base.bbox.ic) {delta = 1.3*base.bbox.ic + .05} // adjust faked IC to be more in line with expeted results
|
|
for (i = 0, m = this.data.length; i < m; i++) {
|
|
if (this.data[i] != null) {
|
|
box = boxes[i];
|
|
z3 = HTMLCSS.TeX.big_op_spacing5 * scale;
|
|
var accent = (i != this.base && values[this.ACCENTS[i]]);
|
|
if (accent && box.bbox.w <= 1/HTMLCSS.em+.0001) { // images can get the width off by 1px
|
|
box.bbox.w = box.bbox.rw - box.bbox.lw; box.bbox.noclip = true;
|
|
if (box.bbox.lw)
|
|
{box.insertBefore(HTMLCSS.createSpace(box.parentNode,0,0,-box.bbox.lw),box.firstChild)}
|
|
HTMLCSS.createBlank(box,0,0,box.bbox.rw+.1);
|
|
}
|
|
dw = {left:0, center:(WW-box.bbox.w)/2, right:WW-box.bbox.w}[values.align];
|
|
x = dw; y = 0;
|
|
if (i == this.over) {
|
|
if (accent) {
|
|
k = Math.max(t * scale * factor,2.5/this.em); z3 = 0;
|
|
if (base.bbox.skew) {x += base.bbox.skew}
|
|
} else {
|
|
z1 = HTMLCSS.TeX.big_op_spacing1 * scale * factor;
|
|
z2 = HTMLCSS.TeX.big_op_spacing3 * scale * factor;
|
|
k = Math.max(z1,z2-Math.max(0,box.bbox.d));
|
|
}
|
|
k = Math.max(k,1.5/this.em); // force to be at least 1.5px
|
|
x += delta/2; y = base.bbox.h + box.bbox.d + k;
|
|
box.bbox.h += z3;
|
|
} else if (i == this.under) {
|
|
if (accent) {
|
|
k = 3*t * scale * factor; z3 = 0;
|
|
} else {
|
|
z1 = HTMLCSS.TeX.big_op_spacing2 * scale * factor;
|
|
z2 = HTMLCSS.TeX.big_op_spacing4 * scale * factor;
|
|
k = Math.max(z1,z2-box.bbox.h);
|
|
}
|
|
k = Math.max(k,1.5/this.em); // force to be at least 1.5px
|
|
x -= delta/2; y = -(base.bbox.d + box.bbox.h + k);
|
|
box.bbox.d += z3;
|
|
}
|
|
HTMLCSS.placeBox(box,x,y);
|
|
}
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLstretchH: MML.mbase.HTMLstretchH,
|
|
HTMLstretchV: MML.mbase.HTMLstretchV
|
|
});
|
|
|
|
MML.msubsup.Augment({
|
|
toHTML: function (span,HW,D) {
|
|
span = this.HTMLcreateSpan(span);
|
|
var scale = this.HTMLgetScale(), mu = this.HTMLgetMu(span);
|
|
var stack = HTMLCSS.createStack(span), values, children = [];
|
|
var base = HTMLCSS.createBox(stack);
|
|
if (this.data[this.base]) {
|
|
children.push(this.data[this.base].toHTML(base));
|
|
if (D != null) {this.data[this.base].HTMLstretchV(base,HW,D)}
|
|
else if (HW != null) {this.data[this.base].HTMLstretchH(base,HW)}
|
|
} else {base.bbox = this.HTMLzeroBBox()}
|
|
var x_height = HTMLCSS.TeX.x_height * scale,
|
|
s = HTMLCSS.TeX.scriptspace * scale * .75; // FIXME: .75 can be removed when IC is right?
|
|
var sup, sub;
|
|
if (this.HTMLnotEmpty(this.data[this.sup]))
|
|
{sup = HTMLCSS.createBox(stack); children.push(this.data[this.sup].toHTML(sup))}
|
|
if (this.HTMLnotEmpty(this.data[this.sub]))
|
|
{sub = HTMLCSS.createBox(stack); children.push(this.data[this.sub].toHTML(sub))}
|
|
HTMLCSS.MeasureSpans(children);
|
|
if (sup) {sup.bbox.w += s; sup.bbox.rw = Math.max(sup.bbox.w,sup.bbox.rw)}
|
|
if (sub) {sub.bbox.w += s; sub.bbox.rw = Math.max(sub.bbox.w,sub.bbox.rw)}
|
|
HTMLCSS.placeBox(base,0,0);
|
|
var sscale;
|
|
if (sup) {
|
|
sscale = this.data[this.sup].HTMLgetScale();
|
|
} else if (sub) {
|
|
sscale = this.data[this.sub].HTMLgetScale();
|
|
} else {
|
|
sscale = this.HTMLgetScale();
|
|
}
|
|
var q = HTMLCSS.TeX.sup_drop * sscale, r = HTMLCSS.TeX.sub_drop * sscale;
|
|
var u = base.bbox.h - q, v = base.bbox.d + r, delta = 0, p;
|
|
if (base.bbox.ic) {
|
|
base.bbox.w -= base.bbox.ic; // remove IC (added by mo and mi)
|
|
delta = 1.3*base.bbox.ic + .05; // adjust faked IC to be more in line with expected results
|
|
}
|
|
if (this.data[this.base] &&
|
|
(this.data[this.base].type === "mi" || this.data[this.base].type === "mo")) {
|
|
if (this.data[this.base].data.join("").length === 1 && base.bbox.scale === 1 &&
|
|
!this.data[this.base].Get("largeop")) {u = v = 0}
|
|
}
|
|
var min = this.getValues("subscriptshift","superscriptshift");
|
|
min.subscriptshift = (min.subscriptshift === "" ? 0 : HTMLCSS.length2em(min.subscriptshift,mu));
|
|
min.superscriptshift = (min.superscriptshift === "" ? 0 : HTMLCSS.length2em(min.superscriptshift,mu));
|
|
if (!sup) {
|
|
if (sub) {
|
|
v = Math.max(v,HTMLCSS.TeX.sub1*scale,sub.bbox.h-(4/5)*x_height,min.subscriptshift);
|
|
HTMLCSS.placeBox(sub,base.bbox.w,-v,sub.bbox);
|
|
}
|
|
} else {
|
|
if (!sub) {
|
|
values = this.getValues("displaystyle","texprimestyle");
|
|
p = HTMLCSS.TeX[(values.displaystyle ? "sup1" : (values.texprimestyle ? "sup3" : "sup2"))];
|
|
u = Math.max(u,p*scale,sup.bbox.d+(1/4)*x_height,min.superscriptshift);
|
|
HTMLCSS.placeBox(sup,base.bbox.w+delta,u,sup.bbox);
|
|
} else {
|
|
v = Math.max(v,HTMLCSS.TeX.sub2*scale);
|
|
var t = HTMLCSS.TeX.rule_thickness * scale;
|
|
if ((u - sup.bbox.d) - (sub.bbox.h - v) < 3*t) {
|
|
v = 3*t - u + sup.bbox.d + sub.bbox.h;
|
|
q = (4/5)*x_height - (u - sup.bbox.d);
|
|
if (q > 0) {u += q; v -= q}
|
|
}
|
|
HTMLCSS.placeBox(sup,base.bbox.w+delta,Math.max(u,min.superscriptshift));
|
|
HTMLCSS.placeBox(sub,base.bbox.w,-Math.max(v,min.subscriptshift));
|
|
}
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
},
|
|
HTMLstretchH: MML.mbase.HTMLstretchH,
|
|
HTMLstretchV: MML.mbase.HTMLstretchV
|
|
});
|
|
|
|
MML.mmultiscripts.Augment({toHTML: MML.mbase.HTMLautoload});
|
|
|
|
MML.mtable.Augment({toHTML: MML.mbase.HTMLautoload});
|
|
|
|
MML["annotation-xml"].Augment({toHTML: MML.mbase.HTMLautoload});
|
|
|
|
MML.math.Augment({
|
|
toHTML: function (span,node) {
|
|
var alttext = this.Get("alttext");
|
|
if (alttext && alttext !== "") {node.setAttribute("aria-label",alttext)}
|
|
var nobr = HTMLCSS.addElement(span,"nobr",{isMathJax: true});
|
|
span = this.HTMLcreateSpan(nobr);
|
|
var stack = HTMLCSS.createStack(span), box = HTMLCSS.createBox(stack), math;
|
|
// Move font-size from outer span to stack to avoid line separation
|
|
// problem in strict HTML mode
|
|
stack.style.fontSize = nobr.parentNode.style.fontSize; nobr.parentNode.style.fontSize = "";
|
|
if (this.data[0] != null) {
|
|
if (HTMLCSS.msieColorBug) {
|
|
if (this.background) {this.data[0].background = this.background; delete this.background}
|
|
if (this.mathbackground) {this.data[0].mathbackground = this.mathbackground; delete this.mathbackground}
|
|
}
|
|
MML.mbase.prototype.displayAlign = HUB.config.displayAlign;
|
|
MML.mbase.prototype.displayIndent = HUB.config.displayIndent;
|
|
var html = this.data[0].toHTML(box); html.bbox.exactW = false; // force remeasure just to be sure
|
|
math = HTMLCSS.Measured(html,box);
|
|
}
|
|
HTMLCSS.placeBox(box,0,0);
|
|
//
|
|
// Get width right if minimum font size is set:
|
|
// Round to nearest pixel (plus a small amount), and convert back to outer-em's.
|
|
// Add the width to the span (outside the MathJax class, so uses outer em size,
|
|
// which makes it work even when minimum font size is in effect).
|
|
//
|
|
span.style.width = HTMLCSS.Em((Math.round(math.bbox.w*this.em)+.25)/HTMLCSS.outerEm);
|
|
span.style.display = "inline-block";
|
|
//
|
|
// Adjust bbox to match outer em-size
|
|
//
|
|
var p = 1/HTMLCSS.em, f = HTMLCSS.em / HTMLCSS.outerEm; HTMLCSS.em /= f;
|
|
span.bbox.h *= f; span.bbox.d *= f; span.bbox.w *= f;
|
|
span.bbox.lw *= f; span.bbox.rw *= f;
|
|
if (math && math.bbox.width != null) {
|
|
span.style.minWidth = (math.bbox.minWidth || span.style.width);
|
|
span.style.width = stack.style.width = math.bbox.width;
|
|
box.style.width = "100%";
|
|
}
|
|
//
|
|
// Add color (if any)
|
|
//
|
|
this.HTMLhandleColor(span);
|
|
//
|
|
// Make math span be the correct height and depth
|
|
//
|
|
if (math) {HTMLCSS.createRule(span,(math.bbox.h+p)*f,(math.bbox.d+p)*f,0)}
|
|
//
|
|
// Handle indentalign and indentshift for single-line display equations
|
|
//
|
|
if (!this.isMultiline && this.Get("display") === "block" && span.bbox.width == null) {
|
|
var values = this.getValues("indentalignfirst","indentshiftfirst","indentalign","indentshift");
|
|
if (values.indentalignfirst !== MML.INDENTALIGN.INDENTALIGN) {values.indentalign = values.indentalignfirst}
|
|
if (values.indentalign === MML.INDENTALIGN.AUTO) {values.indentalign = this.displayAlign}
|
|
node.style.textAlign = values.indentalign;
|
|
if (values.indentshiftfirst !== MML.INDENTSHIFT.INDENTSHIFT) {values.indentshift = values.indentshiftfirst}
|
|
if (values.indentshift === "auto") {values.indentshift = this.displayIndent}
|
|
if (values.indentshift && values.indentalign !== MML.INDENTALIGN.CENTER) {
|
|
span.style[{left:"marginLeft",right:"marginRight"}[values.indentalign]] =
|
|
HTMLCSS.Em(HTMLCSS.length2em(values.indentshift));
|
|
}
|
|
}
|
|
return span;
|
|
},
|
|
HTMLspanElement: MML.mbase.prototype.HTMLspanElement
|
|
});
|
|
|
|
MML.TeXAtom.Augment({
|
|
toHTML: function (span) {
|
|
span = this.HTMLcreateSpan(span);
|
|
if (this.data[0] != null) {
|
|
if (this.texClass === MML.TEXCLASS.VCENTER) {
|
|
var stack = HTMLCSS.createStack(span);
|
|
var box = HTMLCSS.createBox(stack);
|
|
HTMLCSS.Measured(this.data[0].toHTML(box),box);
|
|
// FIXME: should the axis height be scaled?
|
|
HTMLCSS.placeBox(box,0,HTMLCSS.TeX.axis_height-(box.bbox.h+box.bbox.d)/2+box.bbox.d);
|
|
} else {
|
|
span.bbox = this.data[0].toHTML(span).bbox;
|
|
}
|
|
}
|
|
this.HTMLhandleSpace(span);
|
|
this.HTMLhandleColor(span);
|
|
return span;
|
|
}
|
|
});
|
|
|
|
//
|
|
// Loading isn't complete until the element jax is modified,
|
|
// but can't call loadComplete within the callback for "mml Jax Ready"
|
|
// (it would call HTMLCSS's Require routine, asking for the mml jax again)
|
|
// so wait until after the mml jax has finished processing.
|
|
//
|
|
// We also need to wait for the onload handler to run, since the loadComplete
|
|
// will call Config and Startup, which need to modify the body.
|
|
//
|
|
MathJax.Hub.Register.StartupHook("onLoad",function () {
|
|
setTimeout(MathJax.Callback(["loadComplete",HTMLCSS,"jax.js"]),0);
|
|
});
|
|
});
|
|
|
|
HUB.Register.StartupHook("End Config",function () {
|
|
|
|
//
|
|
// Handle browser-specific setup
|
|
//
|
|
HUB.Browser.Select({
|
|
MSIE: function (browser) {
|
|
var mode = (document.documentMode || 0);
|
|
var isIE7 = browser.versionAtLeast("7.0");
|
|
var isIE8 = browser.versionAtLeast("8.0") && mode > 7;
|
|
var quirks = (document.compatMode === "BackCompat");
|
|
if (mode < 9) {
|
|
// IE doesn't do mouse events on trasparent objects,
|
|
// so give a background color, but opacity makes it transparent
|
|
HTMLCSS.config.styles[".MathJax .MathJax_HitBox"]["background-color"] = "white";
|
|
HTMLCSS.config.styles[".MathJax .MathJax_HitBox"].opacity = 0
|
|
HTMLCSS.config.styles[".MathJax .MathJax_HitBox"].filter = "alpha(opacity=0)";
|
|
}
|
|
// FIXME: work out tests for these?
|
|
HTMLCSS.Augment({
|
|
PaddingWidthBug: true,
|
|
msieAccentBug: true,
|
|
msieColorBug: true,
|
|
msieColorPositionBug: true, // needs position:relative to put color behind text
|
|
msieRelativeWidthBug: quirks,
|
|
msieDisappearingBug: (mode >= 8), // inline math disappears
|
|
msieMarginScaleBug: (mode < 8), // relative margins are not scaled properly by font-size
|
|
msiePaddingWidthBug: true,
|
|
msieBorderWidthBug: quirks,
|
|
msieFrameSizeBug: (mode <= 8), // crashes if size of box isn't big enough for border
|
|
msieInlineBlockAlignBug: (!isIE8 || quirks),
|
|
msiePlaceBoxBug: (isIE8 && !quirks),
|
|
msieClipRectBug: !isIE8,
|
|
msieNegativeSpaceBug: quirks,
|
|
cloneNodeBug: (isIE8 && browser.version === "8.0"),
|
|
initialSkipBug: (mode < 8), // confused by initial left-margin values
|
|
msieNegativeBBoxBug: (mode >= 8), // negative bboxes have positive widths
|
|
msieIE6: !isIE7,
|
|
msieItalicWidthBug: true,
|
|
FontFaceBug: true,
|
|
msieFontCSSBug: browser.isIE9,
|
|
allowWebFonts: (mode >= 9 ? "woff" : "eot")
|
|
});
|
|
},
|
|
|
|
Firefox: function (browser) {
|
|
var webFonts = false;
|
|
if (browser.versionAtLeast("3.5")) {
|
|
var root = String(document.location).replace(/[^\/]*$/,"");
|
|
if (document.location.protocol !== "file:" || HUB.config.root.match(/^https?:\/\//) ||
|
|
(HUB.config.root+"/").substr(0,root.length) === root) {webFonts = "otf"}
|
|
}
|
|
HTMLCSS.Augment({
|
|
ffVerticalAlignBug: true,
|
|
AccentBug: true,
|
|
allowWebFonts: webFonts
|
|
});
|
|
},
|
|
|
|
Safari: function (browser) {
|
|
var v3p0 = browser.versionAtLeast("3.0");
|
|
var v3p1 = browser.versionAtLeast("3.1");
|
|
var trueSafari = navigator.appVersion.match(/ Safari\/\d/) &&
|
|
navigator.appVersion.match(/ Version\/\d/) &&
|
|
navigator.vendor.match(/Apple/);
|
|
var android = (navigator.appVersion.match(/ Android (\d+)\.(\d+)/));
|
|
var forceImages = (v3p1 && browser.isMobile && (
|
|
(navigator.platform.match(/iPad|iPod|iPhone/) && !browser.versionAtLeast("5.0")) ||
|
|
(android != null && (android[1] < 2 || (android[1] == 2 && android[2] < 2)))
|
|
));
|
|
HTMLCSS.Augment({
|
|
config: {
|
|
styles: {
|
|
".MathJax img, .MathJax nobr, .MathJax a": {
|
|
// "none" seems to work like "0px" when width is initially 0
|
|
"max-width": "5000em", "max-height": "5000em"
|
|
}
|
|
}
|
|
},
|
|
rfuzz: .011,
|
|
AccentBug: true,
|
|
AdjustSurd: true,
|
|
negativeBBoxes: true,
|
|
safariNegativeSpaceBug: true,
|
|
safariVerticalAlignBug: !v3p1,
|
|
safariTextNodeBug: !v3p0,
|
|
forceReflow: true,
|
|
allowWebFonts: (v3p1 && !forceImages ? "otf" : false)
|
|
});
|
|
if (trueSafari) {
|
|
HTMLCSS.Augment({
|
|
webFontDefault: (browser.isMobile ? "sans-serif" : "serif")
|
|
});
|
|
}
|
|
if (browser.isPC) {
|
|
HTMLCSS.Augment({
|
|
adjustAvailableFonts: HTMLCSS.removeSTIXfonts, // can't access plane1
|
|
checkWebFontsTwice: true // bug in Safari/Win that doesn't update font test div properly
|
|
});
|
|
}
|
|
if (forceImages) {
|
|
// Force image mode for iOS prior to 4.2 and Droid prior to 2.2
|
|
var config = HUB.config["HTML-CSS"];
|
|
if (config) {config.availableFonts = []; config.preferredFont = null}
|
|
else {HUB.config["HTML-CSS"] = {availableFonts: [], preferredFont: null}}
|
|
}
|
|
},
|
|
|
|
Chrome: function (browser) {
|
|
HTMLCSS.Augment({
|
|
Em: HTMLCSS.EmRounded, // vertical alignment needs help (since around v20)
|
|
cloneNodeBug: true, // Chrome gets heights wrong with the cloned ones
|
|
rfuzz: .011,
|
|
AccentBug: true,
|
|
AdjustSurd: true,
|
|
negativeBBoxes: true,
|
|
safariNegativeSpaceBug: true,
|
|
safariWebFontSerif: [""],
|
|
forceReflow: true,
|
|
allowWebFonts: (browser.versionAtLeast("4.0") ? "otf" : "svg")
|
|
});
|
|
},
|
|
|
|
Opera: function (browser) {
|
|
browser.isMini = (navigator.appVersion.match("Opera Mini") != null);
|
|
HTMLCSS.config.styles[".MathJax .merror"]["vertical-align"] = null;
|
|
HTMLCSS.config.styles[".MathJax span"]["z-index"] = 0;
|
|
HTMLCSS.Augment({
|
|
operaHeightBug: true,
|
|
operaVerticalAlignBug: true,
|
|
operaFontSizeBug: browser.versionAtLeast("10.61"),
|
|
initialSkipBug: true,
|
|
FontFaceBug: true,
|
|
PaddingWidthBug: true,
|
|
allowWebFonts: (browser.versionAtLeast("10.0") && !browser.isMini ? "otf" : false),
|
|
adjustAvailableFonts: HTMLCSS.removeSTIXfonts
|
|
});
|
|
},
|
|
|
|
Konqueror: function (browser) {
|
|
HTMLCSS.Augment({
|
|
konquerorVerticalAlignBug: true
|
|
});
|
|
}
|
|
});
|
|
|
|
});
|
|
|
|
MathJax.Hub.Register.StartupHook("End Cookie", function () {
|
|
if (HUB.config.menuSettings.zoom !== "None")
|
|
{AJAX.Require("[MathJax]/extensions/MathZoom.js")}
|
|
});
|
|
|
|
})(MathJax.Ajax, MathJax.Hub, MathJax.OutputJax["HTML-CSS"]);
|