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reveal-js-base-theme/plugin/math/mathjax/unpacked/jax/output/NativeMML/jax.js

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Local mathjax, local fonts, no more external calls
2014-06-12 17:58:15 +02:00
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*************************************************************
*
* MathJax/jax/output/NativeMML/jax.js
*
* Implements the NativeMML OutputJax that displays mathematics
* using a browser's native MathML capabilities (if any).
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2010-2012 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function (nMML,HUB,AJAX,HTML) {
var MML, isMSIE = HUB.Browser.isMSIE;
var EVENT, TOUCH, HOVER, ZOOM; // filled in later
HUB.Register.StartupHook("MathZoom Ready",function () {ZOOM = MathJax.Extension.MathZoom});
var NOPADDING = function (side,obj) {
var span = HTML.Element("span"); side = "padding"+side;
if (obj) {
span.style.cssText = (obj.getAttribute("style")||"");
if (span.style.padding === "" && (span.style[side]||"") === "") {
span.style[side] = "0px"; obj.setAttribute("style",span.style.cssText)
}
}
};
var CELLSPACING = function (obj,rowSpacing,columnSpacing) {
//
// Webkit default padding on mtd cells is simply
//
// mtd {padding: 0.5ex;}
//
// Gecko default padding on mtd cells is
//
// mtd {padding-right: 0.4em;
// padding-left: 0.4em;
// padding-bottom: 0.5ex;
// padding-top: 0.5ex;}
// mtr:first-child > mtd {padding-top: 0ex;}
// mtr:last-child > mtd {padding-bottom: 0ex;}
// mtd:first-child {padding-left: 0em;}
// mtd:last-child {padding-right: 0em;}
//
// that is the columnspacing/rowspacing is split into two adjacent cells,
// and the periphery of boundary cells is set to zero.
//
// Here, we will set the left/top padding of each cell to
// rowSpacing/columnSpacing (or 0px for the leftmost/topmost cells) and
// reset the right/bottom padding to zero.
//
if (obj) {
var span = HTML.Element("span");
span.style.cssText = (obj.getAttribute("style")||"");
if (span.style.padding === "") {
var padding = { paddingLeft: columnSpacing, paddingTop: rowSpacing,
paddingRight: "0px", paddingBottom: "0px" };
for (var side in padding) {if (padding.hasOwnProperty(side)) {
if ((span.style[side]||"") === "") {span.style[side] = padding[side];}
}}
}
obj.setAttribute("style",span.style.cssText);
}
};
nMML.Augment({
//
// User can configure styles
//
config: {
styles: {
".MathJax_MathML": {
"font-style": "normal",
"font-weight": "normal",
"line-height": "normal",
"font-size": "100%",
"font-size-adjust":"none",
"text-indent": 0,
"text-align": "left",
"text-transform": "none",
"letter-spacing": "normal",
"word-spacing": "normal",
"word-wrap": "normal",
"white-space": "nowrap",
"float": "none",
"direction": "ltr",
border: 0, padding: 0, margin: 0
},
"span.MathJax_MathML": {
display: "inline"
},
"div.MathJax_MathML": {
display: "block"
},
".MathJax_mmlExBox": {
display:"block", overflow:"hidden",
height:"1px", width:"60ex",
padding:0, border: 0, margin: 0
}
}
},
settings: HUB.config.menuSettings,
ex: 1, scale: 1, // filled in later
adjustWidths: [], // array of elements to have their widths adjusted
Config: function () {
this.SUPER(arguments).Config.call(this);
if (this.settings.scale) {this.config.scale = this.settings.scale}
//
// Insert styling to take account of displayAlign and displayIndent
//
if (HUB.config.displayAlign !== "center") {
var align = HUB.config.displayAlign, indent = HUB.config.displayIndent;
var def = {"text-align": align+"!important"}; def["margin-"+align] = indent+"!important";
HUB.Insert(this.config.styles,{
"div.MathJax_MathML": def,
"div.MathJax_MathML math": {"text-align": align},
"div.MathJax_MathContainer > span": {"text-align": align+"!important"}
});
}
if (!this.require) {this.require = []}
this.require.push(MathJax.OutputJax.extensionDir+"/MathEvents.js");
},
Startup: function () {
// Set up event handling
EVENT = MathJax.Extension.MathEvents.Event;
TOUCH = MathJax.Extension.MathEvents.Touch;
HOVER = MathJax.Extension.MathEvents.Hover;
this.ContextMenu = EVENT.ContextMenu;
this.Mousedown = EVENT.AltContextMenu;
this.Mouseover = HOVER.Mouseover;
this.Mouseout = HOVER.Mouseout;
this.Mousemove = HOVER.Mousemove;
if (!isMSIE) {
// Used in preTranslate to get scaling factors
this.EmExSpan = HTML.Element("span",
{style:{position:"absolute","font-size-adjust":"none"}},
[
["div",{className:"MathJax_mmlExBox"}],
["span",{className:"MathJax_MathML"}]
]
);
MML.math(MML.mspace().With({width:"60ex"})).toNativeMML(this.EmExSpan.lastChild);
}
// Set up styles
return AJAX.Styles(this.config.styles);
},
//
// Set up MathPlayer for IE on the first time through.
//
InitializeMML: function () {
this.initialized = true;
if (isMSIE) {
try {
//
// Insert data needed to use MathPlayer for MathML output
//
if (!HUB.Browser.mpNamespace) {
var mathplayer = document.createElement("object");
mathplayer.id = "mathplayer"; mathplayer.classid = "clsid:32F66A20-7614-11D4-BD11-00104BD3F987";
document.getElementsByTagName("head")[0].appendChild(mathplayer);
document.namespaces.add("m","http://www.w3.org/1998/Math/MathML");
HUB.Browser.mpNamespace = true;
}
if (!HUB.Browser.mpImported) {
document.namespaces.m.doImport("#mathplayer");
HUB.Browser.mpImported = true;
}
} catch (err) {
//
// If that fails, give an alert about security settings
//
alert(MathJax.Localization._(["MathML", "MathPlayer"],
"MathJax was not able to set up MathPlayer.\n\n"+
"If MathPlayer is not installed, you need to install it first.\n"+
"Otherwise, your security settings may be preventing ActiveX \n"+
"controls from running. Use the Internet Options item under\n"+
"the Tools menu and select the Security tab, then press the\n"+
"Custom Level button. Check that the settings for\n"+
"'Run ActiveX Controls', and 'Binary and script behaviors'\n"+
"are enabled.\n\n"+
"Currently you will see error messages rather than\n"+
"typeset mathematics."));
}
} else {
//
// Get the default sizes (need styles in place to do this)
//
document.body.appendChild(this.EmExSpan);
this.defaultEx = this.EmExSpan.firstChild.offsetWidth/60;
this.defaultMEx = this.EmExSpan.lastChild.offsetWidth/60;
document.body.removeChild(this.EmExSpan);
}
},
preTranslate: function (state) {
var scripts = state.jax[this.id], i, m = scripts.length,
script, prev, span, test, math, jax, ex, mex, scale;
for (i = 0; i < m; i++) {
script = scripts[i]; if (!script.parentNode) continue;
if (!this.initialized) {this.InitializeMML()}
//
// Remove any existing output
//
prev = script.previousSibling;
if (prev && prev.className === "MathJax_MathML") {prev.parentNode.removeChild(prev)}
//
// Add the MathJax span
//
jax = script.MathJax.elementJax; if (!jax) continue;
math = jax.root; jax.NativeMML = {};
var type = (math.Get("display") === "block" ? "div" : "span");
span = HTML.Element(type,{
className: "MathJax_MathML", id:jax.inputID+"-Frame"
},[["span",{
className:"MathJax_MathContainer", isMathJax: true, jaxID:this.id,
style:{position:"relative", display:"inline-block", "white-space":"nowrap"}
}, [["span",{isMathJax:true, style:{display:"inline-block"}}]] // for Firefox hover and zoom
]]);
script.parentNode.insertBefore(span,script);
//
// Add the test span for determining scales
//
if (!isMSIE) {script.parentNode.insertBefore(this.EmExSpan.cloneNode(true),script)}
}
//
// 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;
jax = script.MathJax.elementJax; if (!jax) continue;
if (!isMSIE) {
test = script.previousSibling;
ex = test.firstChild.offsetWidth/60;
mex = test.lastChild.offsetWidth/60;
if (ex === 0 || ex === "NaN") {ex = this.defaultEx; mex = this.defaultMEx}
scale = (this.config.matchFontHeight && mex > 1 ? ex/mex : 1);
scale = Math.floor(Math.max(this.config.minScaleAdjust/100,scale) * this.config.scale);
jax.NativeMML.ex = ex; jax.NativeMML.mex = mex;
} else {scale = 100}
jax.NativeMML.fontSize = scale+"%";
jax.NativeMML.scale = scale/100;
}
//
// Remove the test spans used for determining scales
//
if (!isMSIE) {
for (i = 0; i < m; i++) {
script = scripts[i];
if (script.parentNode && script.MathJax.elementJax) {
script.parentNode.removeChild(script.previousSibling);
}
}
}
},
//
// Add a SPAN to use as a container, and render the math into it
//
Translate: function (script) {
if (!script.parentNode) return;
//
// Get the jax and the container and set the size
//
var jax = script.MathJax.elementJax, math = jax.root;
var span = document.getElementById(jax.inputID+"-Frame"),
container = span.firstChild, mspan = container.firstChild;
this.ex = jax.NativeMML.ex || this.defaultEx;
this.scale = jax.NativeMML.scale || 1;
if (this.scale !== 1) {span.style.fontSize = jax.NativeMML.fontSize}
//
// Convert to MathML (if restarted, remove any partial math)
//
try {math.toNativeMML(mspan)} catch (err) {
if (err.restart) {while (mspan.firstChild) {mspan.removeChild(mspan.firstChild)}}
throw err;
}
//
// Add event handlers
//
if (isMSIE) {
if (container.addEventListener) {
for (var id in this.MSIE9events) {if (this.MSIE9events.hasOwnProperty(id)) {
container.addEventListener(id,this.MSIE9event,true);
}}
} else {
var config = (this.config.showMathMenuMSIE != null ? this : HUB).config;
if (config.showMathMenuMSIE && !this.settings.mpContext && !this.settings.mpMouse)
{this.MSIEoverlay(container)} else
{container.style.position = ""; mspan.firstChild.onmousedown = this.MSIEaltMenu}
}
} else {
container.oncontextmenu = EVENT.Menu;
container.onmouseover = EVENT.Mouseover;
container.onmouseout = EVENT.Mouseout;
container.onmousedown = EVENT.Mousedown;
container.onclick = EVENT.Click;
container.ondblclick = EVENT.DblClick;
if (HUB.Browser.noContextMenu) {
container.ontouchstart = TOUCH.start;
container.ontouchend = TOUCH.end;
}
}
},
postTranslate: function (state) {
if (this.forceReflow) {
//
// Firefox messes up some mtable's when they are dynamically created
// 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;
}
},
//
// Remove MathML preceeding the script
//
Remove: function (jax) {
var span = jax.SourceElement(); if (!span) return;
span = span.previousSibling; if (!span) return;
if (span.className.match(/MathJax_MathML/)) {span.parentNode.removeChild(span)}
},
//
// The namespace to use for MML
//
MMLnamespace: "http://www.w3.org/1998/Math/MathML",
//
// For MSIE, we must overlay the MathPlayer object to trap the events
// (since they can't be cancelled when the events are on the <math> tag
// itself). The events we DON'T want are transferred to the math element,
// and the others are handled directly.
//
MSIEoverlay: function (span) {
var math = span.firstChild;
if (math.nodeName.toLowerCase() === "span") {math = math.firstChild}
var bbox = this.getHoverBBox(null,math,{});
HTML.addElement(span,"span",{
style:{display:"inline-block", width:0, height:0, position:"relative"}
},[["span",{isMathJax: true, className: "MathJax_MathPlayer_Overlay",
style:{
display:"inline-block", position:"absolute",
left:HOVER.Px(-bbox.w), top:HOVER.Px(-bbox.h-(bbox.y||0)-1),
width:HOVER.Px(bbox.w), height:HOVER.Px(bbox.h+bbox.d), cursor:"pointer",
"background-color":"white", filter:"alpha(opacity=0)"
}
}]]);
HUB.Insert(span,{
msieMath: math,
onmousedown: this.MSIEevent, oncontextmenu: this.MSIEevent, onclick: this.MSIEevent,
onmouseup: this.MSIEevent, onmousemove: this.MSIEevent, ondblclick: this.MSIEevent,
onmouseover: this.MSIEevent, onmouseout: this.MSIEevent
});
},
MSIEevents: {
mousedown:"Mousedown", contextmenu:"ContextMenu", click:"Click",
mouseup:"Mouseup", mousemove:"Mousemove", dblclick: "DblClick",
mouseover:"Mouseover", mouseout:"Mouseout"
},
MSIEevent: function () {
var event = window.event;
var type = nMML.MSIEevents[event.type];
if (nMML[type] && nMML[type](event,this) === false) {return false}
if (ZOOM && ZOOM.HandleEvent(event,type,this) === false) {return false}
if (event.srcElement.className === "MathJax_MathPlayer_Overlay" && this.msieMath.fireEvent) {
//
// For now, ignore all other events. This will disable MathPlayer's zoom
// feature, but also its <maction> support.
//
if (type === "ContextMenu" || type === "Mouseover" || type === "Mouseout")
{this.msieMath.fireEvent("on"+event.type,event)}
}
return EVENT.False(event);
},
MSIEaltMenu: function () {
var container = this.parentNode.parentNode;
while (!container.jaxID) {container = container.parentNode}
EVENT.AltContextMenu(window.event,container);
},
MSIE9events: {
contextmenu:"Menu", click:"Click", dblclick: "DblClick",
mouseup:"False", mouseover:"Mouseover", mouseout:"Mouseout"
},
MSIE9event: function (event) {
if (event.type === "contextmenu" && nMML.settings.mpContext) {return true}
if (event.type === "mouseup" && nMML.settings.mpMouse) {return true}
if (event.type === "click" && nMML.settings.mpContext)
{return EVENT.AltContextMenu(event,this)}
var type = nMML.MSIE9events[event.type];
return EVENT[type].call(this,event);
},
getJaxFromMath: function (math) {
math = math.parentNode;
do {math = math.nextSibling} while (math && math.nodeName.toLowerCase() !== "script");
return HUB.getJaxFor(math);
},
getHoverSpan: function (jax,math) {return math.firstChild},
getHoverBBox: function (jax,span,math) {return EVENT.getBBox(span.parentNode)},
Zoom: function (jax,span,math,Mw,Mh) {
jax.root.toNativeMML(span);
if (this.msieIE8HeightBug) {span.style.position = "absolute"}
var mW = math.offsetWidth || math.scrollWidth,
mH = math.offsetHeight || math.scrollHeight;
var zW = span.offsetWidth, zH = span.offsetHeight;
if (nMML.widthBug) {
//
// FF doesn't get width of <math> right, so get it from <mrow>
//
var W = span.firstChild.firstChild.scrollWidth;
if (W > zW) {zW = W; span.style.width = zW + "px"}
}
if (this.msieIE8HeightBug) {span.style.position = ""}
return {Y:-EVENT.getBBox(span.parentNode).h, mW:mW, mH:mH, zW:zW, zH:zH}
},
NAMEDSPACE: {
negativeveryverythinmathspace: "-.0556em",
negativeverythinmathspace: "-.1111em",
negativethinmathspace: "-.1667em",
negativemediummathspace: "-.2222em",
negativethickmathspace: "-.2778em",
negativeverythickmathspace: "-.3333em",
negativeveryverythickmathspace: "-.3889em",
veryverythinmathspace: ".0556em",
verythinmathspace: ".1111em",
thinmathspace: ".1667em",
mediummathspace: ".2222em",
thickmathspace: ".2778em",
verythickmathspace: ".3333em",
veryverythickmathspace: ".3889em"
}
});
HUB.Register.StartupHook("mml Jax Ready",function () {
MML = MathJax.ElementJax.mml;
MML.mbase.Augment({
//
// Add a MathML tag of the correct type, and set its attributes
// then populate it with its children and append it to the parent
//
toNativeMML: function (parent) {
var tag = this.NativeMMLelement(this.type);
this.NativeMMLattributes(tag);
for (var i = 0, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
parent.appendChild(tag);
},
//
// Look for attributes that are different from the defaults
// and set those in the tag's attribute list
//
NativeMMLattributes: function (tag) {
var defaults = this.defaults;
var copy = (this.attrNames||MML.copyAttributeNames), skip = MML.skipAttributes;
if (!this.attrNames) {
if (this.type === "mstyle") {defaults = MML.math.prototype.defaults}
for (var id in defaults) {if (!skip[id] && defaults.hasOwnProperty(id)) {
if (this[id] != null) {tag.setAttribute(id,this.NativeMMLattribute(this[id]))}
}}
}
for (var i = 0, m = copy.length; i < m; i++) {
var value = (this.attr||{})[copy[i]]; if (value == null) {value = this[copy[i]]}
if (value != null) {tag.setAttribute(copy[i],this.NativeMMLattribute(value))}
}
this.NativeMMLclass(tag);
},
NativeMMLclass: function (tag) {
var CLASS = []; if (this["class"]) {CLASS.push(this["class"])}
if (this.isa(MML.TeXAtom)) {
var TEXCLASS = ["ORD","OP","BIN","REL","OPEN","CLOSE","PUNCT","INNER","VCENTER"][this.texClass];
if (TEXCLASS) {CLASS.push("MJX-TeXAtom-"+TEXCLASS)}
}
if (this.mathvariant && this.NativeMMLvariants[this.mathvariant])
{CLASS.push("MJX"+this.mathvariant)}
if (this.variantForm) {CLASS.push("MJX-variant")}
if (CLASS.length) {tag.setAttribute("class",CLASS.join(" "))}
},
NativeMMLattribute: function (value) {
value = String(value);
if (nMML.NAMEDSPACE[value]) {value = nMML.NAMEDSPACE[value]} // MP doesn't do negative spaces
else if (value.match(/^\s*(([-+])?(\d+(\.\d*)?|\.\d+))\s*mu\s*$/))
{value = RegExp.$2+((1/18)*RegExp.$3).toFixed(3).replace(/\.?0+$/,"")+"em"} // FIXME: should take scriptlevel into account
else if (this.NativeMMLvariants[value]) {value = this.NativeMMLvariants[value]}
return value;
},
NativeMMLvariants: {
"-tex-caligraphic": MML.VARIANT.SCRIPT,
"-tex-caligraphic-bold": MML.VARIANT.BOLDSCRIPT,
"-tex-oldstyle": MML.VARIANT.NORMAL,
"-tex-oldstyle-bold": MML.VARIANT.BOLD,
"-tex-mathit": MML.VARIANT.ITALIC
},
//
// Create a MathML element
//
NativeMMLelement: function (type) {
var math = (isMSIE ? document.createElement("m:"+type) :
document.createElementNS(nMML.MMLnamespace,type));
math.isMathJax = true;
return math;
}
});
MML.mrow.Augment({
//
// Make inferred rows not include an mrow tag
//
toNativeMML: function (parent) {
var i, m;
if (this.inferred && this.parent.inferRow) {
for (i = 0, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(parent)}
else {parent.appendChild(this.NativeMMLelement("mrow"))}
}
} else if (nMML.stretchyMoBug && (this.open || this.close)) {
//
// This element contains opening and/or closing fences. Opera is not
// able to stretch <mo> operators, so let's use an <mfenced> element
// instead.
//
var mfenced = this.NativeMMLelement("mfenced");
this.NativeMMLattributes(mfenced);
i = 0, m = this.data.length;
if (this.open) { mfenced.setAttribute("open", this.open); i++; }
if (this.close) { mfenced.setAttribute("close", this.close); m--; }
var tag = mfenced;
if (m - i + 1 > 1) {
//
// If there are several children, put them in an <mrow>
//
tag = this.NativeMMLelement("mrow");
parent.appendChild(mfenced);
parent = mfenced;
}
for (; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
parent.appendChild(tag);
} else {
this.SUPER(arguments).toNativeMML.call(this,parent);
}
}
});
MML.msubsup.Augment({
//
// Use proper version of msub, msup, or msubsup, depending on
// which items are present
//
toNativeMML: function (parent) {
var type = this.type;
if (this.data[this.sup] == null) {type = "msub"}
if (this.data[this.sub] == null) {type = "msup"}
var tag = this.NativeMMLelement(type);
this.NativeMMLattributes(tag);
if (this.data[0]) {delete this.data[0].inferred}
for (var i = 0, m = this.data.length; i < m; i++)
{if (this.data[i]) {this.data[i].toNativeMML(tag)}}
parent.appendChild(tag);
}
});
MML.munderover.Augment({
//
// Use proper version of munder, mover, or munderover, depending on
// which items are present
//
toNativeMML: function (parent) {
var type = this.type;
if (this.data[this.under] == null) {type = "mover"}
if (this.data[this.over] == null) {type = "munder"}
var tag = this.NativeMMLelement(type);
this.NativeMMLattributes(tag);
if (this.data[0]) {delete this.data[0].inferred}
for (var i = 0, m = this.data.length; i < m; i++)
{if (this.data[i]) {this.data[i].toNativeMML(tag)}}
parent.appendChild(tag);
}
});
if (!isMSIE) {
var SPLIT = HUB.SplitList;
MML.mtable.Augment({
toNativeMML: function (parent) {
var i, m;
if (nMML.tableSpacingBug) {
//
// Parse the rowspacing/columnspacing. For convenience, we convert
// them to a left/top padding value that will be applied to each
// cell. The leftmost/topmost cells will use "0px".
//
var values = this.getValues("rowspacing", "columnspacing");
this.nMMLtopPadding = SPLIT("0px "+values.rowspacing);
this.nMMLleftPadding = SPLIT("0px "+values.columnspacing);
//
// Transmit the top padding to each row.
// If this.parent.nMML.topPadding does not contain enough value,
// repeat the last one.
//
var tp = this.nMMLtopPadding, M = tp.length;
for (i = 0, m = this.data.length; i < m; i++) {
if (this.data[i])
{this.data[i].nMMLtopPadding = tp[i < M ? i : M-1]}
}
}
if (nMML.tableLabelBug) {
//
// Look for labeled rows so we know how to handle them
//
for (i = 0, m = this.data.length; i < m; i++) {
if (this.data[i] && this.data[i].isa(MML.mlabeledtr)) {
var align = HUB.config.displayAlign.charAt(0),
side = this.Get("side").charAt(0);
this.nMMLhasLabels = true;
this.nMMLlaMatch = (align === side);
this.nMMLforceWidth =
(align === "c" || !!((this.width||"").match("%")));
break;
}
}
}
//
// Firefox < 13 doesn't handle width, so put it in styles instead
//
if (this.width && this.ffTableWidthBug) {
var styles = (this.style||"").replace(/;\s*$/,"").split(";");
if (styles[0] === "") {styles.shift()}
styles.push("width:"+this.width);
this.style = styles.join(";");
}
this.SUPER(arguments).toNativeMML.call(this,parent);
//
if (this.nMMLhasLabels) {
var mtable = parent.firstChild;
//
// Add column attributes on the left when extra columns where inserted
//
if (this.nMMLforceWidth || side !== "r") {
var n = (align !== "l" ? 1 : 0) + (side === "l" ? 1 : 0);
if (n) {
var attr = {columnalign:"left", columnwidth:"auto",
columnspacing:"0px", columnlines:"none"};
for (var id in attr) {if (attr.hasOwnProperty(id) && this[id]) {
var cols = [attr[id],attr[id]].slice(2-n).join(" ")+" ";
mtable.setAttribute(id,cols+mtable.getAttribute(id));
}}
}
}
//
// Force the table width to 100% when needed
//
if (this.nMMLforceWidth || !this.nMMLlaMatch)
{mtable.setAttribute("width","100%")}
}
}
});
MML.mtr.Augment({
toNativeMML: function (parent) {
this.SUPER(arguments).toNativeMML.call(this,parent);
var mtr = parent.lastChild;
if (nMML.tableSpacingBug) {
//
// Set the row/column spacing. If this.parent.nMMLleftPadding does
// not contain enough value, repeat the last one.
//
var lp = this.parent.nMMLleftPadding, M = lp.length;
for (var mtd = mtr.firstChild, i = 0; mtd; mtd = mtd.nextSibling, i++) {
CELLSPACING(mtd,this.nMMLtopPadding,lp[i < M ? i : M-1]);
}
}
if (nMML.tableLabelBug) {
var forceWidth = this.parent.nMMLforceWidth,
side = this.parent.Get("side").charAt(0),
align = HUB.config.displayAlign.charAt(0);
if (this.parent.nMMLhasLabels && mtr.firstChild) {
//
// If we add a label or padding column on the left of mlabeledtr,
// mirror that here and remove padding from first table mtd
// so the spacing is consistent with unlabeled equations
//
if (forceWidth || side !== "r") {
NOPADDING("Left",mtr.firstChild);
if (align !== "l") {
mtr.insertBefore(this.NativeMMLelement("mtd"),mtr.firstChild)
.setAttribute("style","padding:0");
}
if (side === "l") {
mtr.insertBefore(this.NativeMMLelement("mtd"),mtr.firstChild)
.setAttribute("style","padding:0");
}
}
//
// If columns were added on the right, remove mtd padding
// so that spacing is consistent with unlabled equations
//
if (forceWidth || side !== "l") {NOPADDING("Right",mtr.lastChild)}
}
}
}
});
MML.mlabeledtr.Augment({
toNativeMML: function (parent) {
var mtr = this.NativeMMLelement("mtr");
this.NativeMMLattributes(mtr);
//
// Add row data
//
for (var i = 1, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(mtr)}
else {mtr.appendChild(this.NativeMMLelement("mtd"))}
}
if (nMML.tableSpacingBug) {
//
// Set the row/column spacing. If this.parent.nMMLleftPadding does
// not contain enough value, repeat the last one.
//
var lp = this.parent.nMMLleftPadding, M = lp.length; i = 0;
for (var mtd = mtr.firstChild; mtd; mtd = mtd.nextSibling, i++) {
CELLSPACING(mtd,this.nMMLtopPadding,lp[i < M ? i : M-1]);
}
}
if (nMML.tableLabelBug && this.data[0]) {
var side = this.parent.Get("side").charAt(0),
align = HUB.config.displayAlign.charAt(0),
indent = HUB.config.displayIndent;
//
// Create label and either set the column width (if label is on the
// same side as the alignment), or use mpadded to hide the label
// width
//
this.data[0].toNativeMML(mtr);
var label = mtr.lastChild, pad = label;
if (side === align) {
label.setAttribute("style","width:"+indent);
label.setAttribute("columnalign",HUB.config.displayAlign);
} else {
pad = this.NativeMMLelement("mpadded");
pad.setAttribute("style","width:0");
pad.setAttribute("width","0px");
pad.appendChild(label.firstChild);
label.appendChild(pad);
}
NOPADDING("",label); mtr.removeChild(label);
//
// Get spacing to use for separation of label from main table
//
var width = 100, forceWidth = this.parent.nMMLforceWidth;
if ((this.parent.width||"").match(/%/)) {
width -= parseFloat(this.parent.width)
};
var w = width;
//
// Add spacing (and possibly label) at the left if needed
//
if (forceWidth || side !== "r") {
NOPADDING("Left",mtr.firstChild);
if (align !== "l") {
if (align === "c") {w /= 2}; width -= w;
mtr.insertBefore(this.NativeMMLelement("mtd"),mtr.firstChild)
.setAttribute("style","padding:0;width:"+w+"%");
}
if (side === "l") {mtr.insertBefore(label,mtr.firstChild)}
}
//
// Add spacing (and possibly label) at the right if needed
//
if (forceWidth || side !== "l") {
NOPADDING("Right",mtr.lastChild);
if (align !== "r") {
mtr.appendChild(this.NativeMMLelement("mtd"))
.setAttribute("style","padding:0;width:"+width+"%");
}
if (side === "r") {
if (side !== align) {pad.setAttribute("lspace","-1width")}
mtr.appendChild(label);
}
}
}
//
// Add row to table
//
parent.appendChild(mtr);
}
});
MML.mtd.Augment({
toNativeMML: function (parent) {
var tag = parent.appendChild(this.NativeMMLelement(this.type));
this.NativeMMLattributes(tag);
if (nMML.mtdWidthBug) {
nMML.adjustWidths.push(tag);
tag = tag.appendChild(this.NativeMMLelement("mrow"));
}
for (var i = 0, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
}
});
MML.mspace.Augment({
toNativeMML: function (parent) {
this.SUPER(arguments).toNativeMML.call(this,parent);
if (nMML.spaceWidthBug && this.width) {
var mspace = parent.lastChild;
var width = mspace.getAttribute("width");
var style = (mspace.getAttribute("style") || "").replace(/;?\s*/,"; ");
mspace.setAttribute("style",style+"width:"+width);
}
}
});
var fontDir = AJAX.fileURL(MathJax.OutputJax.fontDir+"/HTML-CSS/TeX/otf");
/*
* Add fix for mathvariant issues in FF
*/
nMML.Augment({
config: {
styles: {
'[mathvariant="double-struck"]': {"font-family":"MathJax_AMS, MathJax_AMS-WEB"},
'[mathvariant="script"]': {"font-family":"MathJax_Script, MathJax_Script-WEB"},
'[mathvariant="fraktur"]': {"font-family":"MathJax_Fraktur, MathJax_Fraktur-WEB"},
'[mathvariant="bold-script"]': {"font-family":"MathJax_Script, MathJax_Caligraphic-WEB", "font-weight":"bold"},
'[mathvariant="bold-fraktur"]': {"font-family":"MathJax_Fraktur, MathJax_Fraktur-WEB", "font-weight":"bold"},
'[mathvariant="monospace"]': {"font-family":"monospace"},
'[mathvariant="sans-serif"]': {"font-family":"sans-serif"},
'[mathvariant="bold-sans-serif"]': {"font-family":"sans-serif", "font-weight":"bold"},
'[mathvariant="sans-serif-italic"]': {"font-family":"sans-serif", "font-style":"italic"},
'[mathvariant="sans-serif-bold-italic"]': {"font-family":"sans-serif", "font-style":"italic", "font-weight":"bold"},
'[class="MJX-tex-oldstyle"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB"},
'[class="MJX-tex-oldstyle-bold"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB", "font-weight":"bold"},
'[class="MJX-tex-caligraphic"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB"},
'[class="MJX-tex-caligraphic-bold"]': {"font-family":"MathJax_Caligraphic, MathJax_Caligraphic-WEB", "font-weight":"bold"},
'@font-face /*1*/': {
"font-family": "MathJax_AMS-WEB",
"src": "url('"+fontDir+"/MathJax_AMS-Regular.otf')"
},
'@font-face /*2*/': {
"font-family": "MathJax_Script-WEB",
"src": "url('"+fontDir+"/MathJax_Script-Regular.otf')"
},
'@font-face /*3*/': {
"font-family": "MathJax_Fraktur-WEB",
"src": "url('"+fontDir+"/MathJax_Fraktur-Regular.otf')"
},
'@font-face /*4*/': {
"font-family": "MathJax_Caligraphic-WEB",
"src": "url('"+fontDir+"/MathJax_Caligraphic-Regular.otf')"
},
'@font-face /*5*/': {
"font-family": "MathJax_Fraktur-WEB", "font-weight":"bold",
"src": "url('"+fontDir+"/MathJax_Fraktur-Bold.otf')"
},
'@font-face /*6*/': {
"font-family": "MathJax_Caligraphic-WEB", "font-weight":"bold",
"src": "url('"+fontDir+"/MathJax_Caligraphic-Bold.otf')"
}
}
}
});
}
MML.math.Augment({
toNativeMML: function (parent) {
var tag = this.NativeMMLelement(this.type), math = tag, jax;
var i, m;
nMML.adjustWidths = [];
//
// Some browsers don't seem to add the xmlns attribute, so do it by hand.
//
tag.setAttribute("xmlns",nMML.MMLnamespace);
this.NativeMMLattributes(tag);
//
// Use an extra <mrow> in FF so that we can get the correct width
// (the math element doesn't always have an accurate one, see below)
//
if (nMML.widthBug) {tag = tag.appendChild(this.NativeMMLelement("mrow"))}
//
// Add the children
//
for (i = 0, m = this.data.length; i < m; i++) {
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
//
// Look for a top-level mtable and if it has labels
// Make sure the containers have 100% width, when needed
// If the label is on the same side as alignment,
// override the margin set by the stylesheet.
//
var mtable = ((this.data[0]||[]).data[0]||{});
if (mtable.nMMLhasLabels) {
if (mtable.nMMLforceWidth || !mtable.nMMLlaMatch) {
tag.setAttribute("style","width:100%")
parent.style.width = parent.parentNode.style.width="100%";
};
if (mtable.nMMLlaMatch) {
if (parent.parentNode.parentNode.nodeName.toLowerCase() === "div") {
parent.parentNode.parentNode.style
.setProperty("margin-"+HUB.config.displayAlign,"0px","important");
}
}
}
//
// Add the math to the page
//
parent.appendChild(math);
//
// Firefox can't seem to get the width of <math> elements right, so
// use an <mrow> to get the actual width and set the style on the
// parent element to match. Even if we set the <math> width properly,
// it doesn't seem to propagate up to the <span> correctly.
//
if (nMML.widthBug &&
!(mtable.nMMLhasLabels && (mtable.nMMLforceWidth || !mtable.nMMLlaMatch))) {
//
// Convert size to ex's so that it scales properly if the print media
// has a different font size.
//
parent.style.width = (math.firstChild.scrollWidth/nMML.ex/nMML.scale).toFixed(3) + "ex";
//
// Save size for later when we check if Web fonts have arrived
//
jax = HUB.getJaxFor(parent);
if (jax) {jax.NativeMML.scrollWidth = math.firstChild.scrollWidth}
}
if (nMML.adjustWidths.length) {
//
// Firefox gets the widths of <mtd> elements wrong, so run
// through them (now that the math is part of the page) and
// fix them up. Use ex's so that they print properly (see above).
//
var mtd = [];
for (i = 0, m = nMML.adjustWidths.length; i < m; i++) {
tag = nMML.adjustWidths[i];
var style = tag.getAttribute("style") || "";
if (!style.match(/(^|;)\s*min-width:/)) {
mtd.push(tag.scrollWidth);
var width = (tag.scrollWidth/nMML.ex).toFixed(3)+"ex";
style = style.replace(/;?\s*$/,"; ");
tag.setAttribute("style",style+"min-width:"+width);
}
}
//
// Save the lists so that we can check them later for web font downloads
//
if (!jax) {jax = HUB.getJaxFor(parent)}
if (jax) {jax.NativeMML.mtds = mtd}
math.MathJaxMtds = nMML.adjustWidths;
nMML.adjustWidths = []; // clear it so we don't hold onto the DOM elements
}
}
});
MML.mfenced.Augment({
toNativeMML: function (parent) {
if (!nMML.mfencedBug) {
this.SUPER(arguments).toNativeMML.call(this,parent);
return;
}
//
// Some browsers do not handle <mfenced> very well. The MathML spec
// suggests this equivalent construction instead, so let's use it:
// <mrow> open, child1, sep1, child2, ... sep(N-1), childN, close</mrow>
// Opera is a bit special: it does not support stretchy <mo>, does not
// parse mfenced@open/mfenced@close very well, does not support
// mfenced@separators and only displays the first child of the <mfenced>
// element... For this browser, we will use this construction:
// <mfenced open="open" close="close">
// <mrow>child1, sep1, child2, sep2, ..., sep(N-1), childN</mrow>
// </mfenced>
//
var isOpera = HUB.Browser.isOpera;
var i, m, operator;
//
// parse the open, close and separators attributes.
//
var values = this.getValues("open","close","separators");
values.open = values.open.replace(/^\s+/,"").replace(/\s+$/,"");
values.close = values.close.replace(/^\s+/,"").replace(/\s+$/,"");
values.separators = values.separators.replace(/\s+/g,"").split("");
if (values.separators.length == 0) {
//
// No separators specified, do not use separators at all.
//
values.separators = null;
} else if (values.separators.length < this.data.length-1) {
//
// There are not enough separators, repeat the last one.
//
var s = values.separators[values.separators.length-1];
for (i = this.data.length-1-values.separators.length; i > 0; i--)
{values.separators.push(s)}
}
//
// Create an <mrow> container and attach the attributes of the
// <mfenced> element to it. Note: removeAttribute does not raise any
// exception when the attributes is absent.
//
var tag = this.NativeMMLelement(isOpera ? this.type : "mrow");
this.NativeMMLattributes(tag);
tag.removeAttribute("separators");
if (isOpera) {
tag.setAttribute("open", values.open);
tag.setAttribute("close", values.close);
if (this.data.length > 1) {
parent.appendChild(tag); parent = tag;
tag = this.NativeMMLelement("mrow");
}
} else {
tag.removeAttribute("open");
tag.removeAttribute("close");
}
if (!isOpera) {
//
// Append the opening fence
//
operator = this.NativeMMLelement("mo");
operator.setAttribute("fence", "true");
operator.textContent = values.open;
tag.appendChild(operator);
}
//
// Append the content of the <mfenced>
//
for (i = 0, m = this.data.length; i < m; i++) {
if (values.separators && i > 0) {
operator = this.NativeMMLelement("mo");
operator.setAttribute("separator", "true");
operator.textContent = values.separators[i-1];
tag.appendChild(operator);
}
if (this.data[i]) {this.data[i].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
}
if (!isOpera) {
//
// Append the closing fence
//
operator = this.NativeMMLelement("mo");
operator.setAttribute("fence", "true");
operator.textContent = values.close;
tag.appendChild(operator);
}
// finally, append the new element to the parent.
parent.appendChild(tag);
}
});
MML.TeXAtom.Augment({
//
// Convert TeXatom to an mrow
//
toNativeMML: function (parent) {
// FIXME: Handle spacing using mpadded?
var tag = this.NativeMMLelement("mrow");
this.NativeMMLattributes(tag);
this.data[0].toNativeMML(tag);
parent.appendChild(tag);
}
});
MML.chars.Augment({
//
// Add a text node
//
toNativeMML: function (parent) {
parent.appendChild(document.createTextNode(this.toString()));
}
});
MML.entity.Augment({
//
// Add a text node
//
toNativeMML: function (parent) {
parent.appendChild(document.createTextNode(this.toString()));
}
});
MML.xml.Augment({
//
// Insert the XML verbatim
//
toNativeMML: function (parent) {
for (var i = 0, m = this.data.length; i < m; i++)
{parent.appendChild(this.data[i].cloneNode(true))}
}
});
MML.mi.Augment({
toNativeMML: function (parent) {
this.SUPER(arguments).toNativeMML.call(this,parent);
if (nMML.miItalicBug) {
if (this.Get("mathvariant") === MML.VARIANT.NORMAL) {
//
// When not explicitly specified, mathvariant is set to "italic"
// with single char mi and to "normal" with multiple char mi.
// Some browsers always set the default to "italic", so let's
// attach an explicit mathvariant="normal" attribute.
//
var mi = parent.lastChild;
mi.setAttribute("mathvariant",MML.VARIANT.NORMAL);
}
}
}
});
MML.mo.Augment({
toNativeMML: function (parent) {
this.SUPER(arguments).toNativeMML.call(this,parent);
if (nMML.webkitMoSpacingBug) {
//
// WebKit does not support lspace/rspace values around operators
// (neither explicit nor given by the operator dictionary) and uses
// constant values instead. So let's modify the CSS properties here.
//
var lspace = 0, rspace = 0, p = this.parent;
if (p && p.type === "mrow" && (p.inferred || !p.isEmbellished())) {
//
// Retrieve the values of lspace/rspace and convert named spaces.
// Other values (except unitless) will be parsed by the CSS engine.
//
var values = this.getValues("lspace", "rspace");
lspace = values.lspace, rspace = values.rspace;
if (nMML.NAMEDSPACE[lspace]) {lspace = nMML.NAMEDSPACE[lspace]}
if (nMML.NAMEDSPACE[rspace]) {rspace = nMML.NAMEDSPACE[rspace]}
}
//
// Now update -webkit-margin-start and -webkit-margin-end.
//
var mo = parent.lastChild;
var span = HTML.Element("span");
span.style.cssText = (mo.getAttribute("style")||"");
span.style.setProperty("-webkit-margin-start", lspace);
span.style.setProperty("-webkit-margin-end", rspace);
mo.setAttribute("style",span.style.cssText);
}
}
});
MML.mmultiscripts.Augment({
toNativeMML: function (parent) {
//
// Some browsers do not implement the mmultiscripts element.
// Try to emulate the support using basic script elements.
//
if (!nMML.mmultiscriptsBug || this.data.length === 0 ) {
this.SUPER(arguments).toNativeMML.call(this,parent);
return;
}
//
// The children of the mmultiscripts will be wrapped in an mrow so that
// attributes and properties set on the original mmultiscripts will
// be reflected on this mrow element.
//
var tag = this.NativeMMLelement("mrow");
this.NativeMMLattributes(tag);
//
// Create the base
//
if (this.data[0]) {this.data[0].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
base = tag.removeChild(tag.lastChild);
//
// Process the postscript pairs
//
var m = this.data.length, i, msubsup;
for (i = 1; i < m; i+=2) {
if (this.data[i].type === "mprescripts") break;
msubsup = this.NativeMMLelement("msubsup");
msubsup.appendChild(base);
//
// append the subscript
//
if (this.data[i]) {this.data[i].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
//
// append the supscript
//
if (i+1 < m && this.data[i+1]) {this.data[i+1].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
base = msubsup;
}
tag.appendChild(base);
//
// Process the prescript pairs
//
for (i++; i < m; i+=2) {
msubsup = this.NativeMMLelement("msubsup");
msubsup.appendChild(this.NativeMMLelement("mrow"));
//
// append the presubscript
//
if (this.data[i]) {this.data[i].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
//
// append the presupscript
//
if (i+1 < m && this.data[i+1]) {this.data[i+1].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
tag.insertBefore(msubsup, base);
}
parent.appendChild(tag);
}
});
HUB.Register.StartupHook("TeX mathchoice Ready",function () {
MML.TeXmathchoice.Augment({
//
// Get the MathML for the selected choice
//
toNativeMML: function (parent) {this.Core().toNativeMML(parent)}
});
});
//
// 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 NativeMML's Require routine, asking for the mml jax again)
// so wait until after the mml jax has finished processing.
//
setTimeout(MathJax.Callback(["loadComplete",nMML,"jax.js"]),0);
});
//
// Determine browser characteristics
//
HUB.Browser.Select({
MSIE: function (browser) {
var mode = (document.documentMode || 0);
nMML.msieIE8HeightBug = (mode === 8);
},
Opera: function (browser) {
nMML.operaPositionBug = true;
nMML.stretchyMoBug = true;
nMML.tableLabelBug = true;
nMML.mfencedBug = true;
nMML.miBug = true;
nMML.mmultiscriptsBug = true;
},
Firefox: function (browser) {
nMML.ffTableWidthBug = !browser.versionAtLeast("13.0"); // <mtable width="xx"> not implemented
nMML.forceReflow = true; // <mtable> with alignments set don't display properly without a reflow
nMML.widthBug = true; // <math> elements don't always get the correct width
// In Firefox < 20, the intrinsic width of <mspace> is not computed
// correctly and thus the element is displayed incorrectly in <mtable>.
nMML.spaceWidthBug = !browser.versionAtLeast("20.0");
nMML.mtdWidthBug = true; // <mtd> widths not properly determined
nMML.tableSpacingBug = true; // mtable@rowspacing/mtable@columnspacing not
// supported.
nMML.tableLabelBug = true; // mlabeledtr is not implemented.
nMML.mfencedBug = true; // mfenced not displayed correctly
},
Chrome: function (browser) {
nMML.tableSpacingBug = true;
nMML.tableLabelBug = true;
nMML.mfencedBug = true;
},
Safari: function (browser) {
nMML.tableSpacingBug = true;
nMML.tableLabelBug = true;
nMML.mfencedBug = true;
nMML.miItalicBug = true;
nMML.webkitMoSpacingBug = true;
nMML.spaceWidthBug = true;
nMML.mmultiscriptsBug = true;
}
});
HUB.Register.StartupHook("End Cookie",function () {
if (HUB.config.menuSettings.zoom !== "None")
{AJAX.Require("[MathJax]/extensions/MathZoom.js")}
});
})(MathJax.OutputJax.NativeMML, MathJax.Hub, MathJax.Ajax, MathJax.HTML);
Reference in New Issue Copy Permalink