/*************************************************************
*
* MathJax/extensions/MathMenu.js
*
* Implements a right-mouse (or CTRL-click) menu over mathematics
* elements that gives the user the ability to copy the source,
* change the math size, and zoom settings.
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2010-2012 Design Science, Inc.
*
* 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 (HUB,HTML,AJAX,CALLBACK,OUTPUT) {
var VERSION = "2.0";
var SIGNAL = MathJax.Callback.Signal("menu") // signal for menu events
MathJax.Extension.MathMenu = {
version: VERSION,
signal: SIGNAL
};
var isPC = HUB.Browser.isPC, isMSIE = HUB.Browser.isMSIE, isIE9 = ((document.documentMode||0) > 8);
var ROUND = (isPC ? null : "5px");
var CONFIG = HUB.CombineConfig("MathMenu",{
delay: 150, // the delay for submenus
helpURL: "http://www.mathjax.org/help-v2/user/", // the URL for the "MathJax Help" menu
closeImg: AJAX.fileURL(OUTPUT.imageDir+"/CloseX-31.png"), // image for close "X" for mobiles
showRenderer: true, // show the "Math Renderer" menu?
showMathPlayer: true, // show the "MathPlayer" menu?
showFontMenu: false, // show the "Font Preference" menu?
showContext: false, // show the "Context Menu" menu?
showDiscoverable: false, // show the "Discoverable" menu?
windowSettings: { // for source window
status: "no", toolbar: "no", locationbar: "no", menubar: "no",
directories: "no", personalbar: "no", resizable: "yes", scrollbars: "yes",
width: 100, height: 50
},
styles: {
"#MathJax_About": {
position:"fixed", left:"50%", width:"auto", "text-align":"center",
border:"3px outset", padding:"1em 2em", "background-color":"#DDDDDD", color:"black",
cursor: "default", "font-family":"message-box", "font-size":"120%",
"font-style":"normal", "text-indent":0, "text-transform":"none",
"line-height":"normal", "letter-spacing":"normal", "word-spacing":"normal",
"word-wrap":"normal", "white-space":"nowrap", "float":"none", "z-index":201,
"border-radius": "15px", // Opera 10.5 and IE9
"-webkit-border-radius": "15px", // Safari and Chrome
"-moz-border-radius": "15px", // Firefox
"-khtml-border-radius": "15px", // Konqueror
"box-shadow":"0px 10px 20px #808080", // Opera 10.5 and IE9
"-webkit-box-shadow":"0px 10px 20px #808080", // Safari 3 and Chrome
"-moz-box-shadow":"0px 10px 20px #808080", // Forefox 3.5
"-khtml-box-shadow":"0px 10px 20px #808080", // Konqueror
filter: "progid:DXImageTransform.Microsoft.dropshadow(OffX=2, OffY=2, Color='gray', Positive='true')" // IE
},
".MathJax_Menu": {
position:"absolute", "background-color":"white", color:"black",
width:"auto", padding:(isPC ? "2px" : "5px 0px"),
border:"1px solid #CCCCCC", margin:0, cursor:"default",
font: "menu", "text-align":"left", "text-indent":0, "text-transform":"none",
"line-height":"normal", "letter-spacing":"normal", "word-spacing":"normal",
"word-wrap":"normal", "white-space":"nowrap", "float":"none", "z-index":201,
"border-radius": ROUND, // Opera 10.5 and IE9
"-webkit-border-radius": ROUND, // Safari and Chrome
"-moz-border-radius": ROUND, // Firefox
"-khtml-border-radius": ROUND, // Konqueror
"box-shadow":"0px 10px 20px #808080", // Opera 10.5 and IE9
"-webkit-box-shadow":"0px 10px 20px #808080", // Safari 3 and Chrome
"-moz-box-shadow":"0px 10px 20px #808080", // Forefox 3.5
"-khtml-box-shadow":"0px 10px 20px #808080", // Konqueror
filter: "progid:DXImageTransform.Microsoft.dropshadow(OffX=2, OffY=2, Color='gray', Positive='true')" // IE
},
".MathJax_MenuItem": {
padding: (isPC ? "2px 2em" : "1px 2em"),
background:"transparent"
},
".MathJax_MenuTitle": {
"background-color":"#CCCCCC",
margin: (isPC ? "-1px -1px 1px -1px" : "-5px 0 0 0"),
"text-align":"center", "font-style":"italic", "font-size":"80%", color:"#444444",
padding:"2px 0", overflow:"hidden"
},
".MathJax_MenuArrow": {
position:"absolute", right:".5em", color:"#666666",
"font-family": (isMSIE ? "'Arial unicode MS'" : null)
},
".MathJax_MenuActive .MathJax_MenuArrow": {color:"white"},
".MathJax_MenuCheck": {
position:"absolute", left:".7em",
"font-family": (isMSIE ? "'Arial unicode MS'" : null)
},
".MathJax_MenuRadioCheck": {
position:"absolute", left: (isPC ? "1em" : ".7em")
},
".MathJax_MenuLabel": {
padding: (isPC ? "2px 2em 4px 1.33em" : "1px 2em 3px 1.33em"),
"font-style":"italic"
},
".MathJax_MenuRule": {
"border-top": (isPC ? "1px solid #CCCCCC" : "1px solid #DDDDDD"),
margin: (isPC ? "4px 1px 0px" : "4px 3px")
},
".MathJax_MenuDisabled": {
color:"GrayText"
},
".MathJax_MenuActive": {
"background-color": (isPC ? "Highlight" : "#606872"),
color: (isPC ? "HighlightText" : "white")
},
".MathJax_Menu_Close": {
position:"absolute",
width: "31px", height: "31px",
top:"-15px", left:"-15px"
}
}
});
var FALSE, HOVER;
HUB.Register.StartupHook("MathEvents Ready",function () {
FALSE = MathJax.Extension.MathEvents.Event.False;
HOVER = MathJax.Extension.MathEvents.Hover;
});
/*************************************************************/
/*
* The main menu class
*/
var MENU = MathJax.Menu = MathJax.Object.Subclass({
version: VERSION,
items: [],
posted: false,
title: null,
margin: 5,
Init: function (def) {this.items = [].slice.call(arguments,0)},
With: function (def) {if (def) {HUB.Insert(this,def)}; return this},
/*
* Display the menu
*/
Post: function (event,parent) {
if (!event) {event = window.event};
var title = (!this.title ? null : [["div",{className: "MathJax_MenuTitle"},[this.title]]]);
var div = document.getElementById("MathJax_MenuFrame");
if (!div) {
div = MENU.Background(this);
delete ITEM.lastItem; delete ITEM.lastMenu;
delete MENU.skipUp;
SIGNAL.Post(["post",MENU.jax]);
}
var menu = HTML.addElement(div,"div",{
onmouseup: MENU.Mouseup, ondblclick: FALSE,
ondragstart: FALSE, onselectstart: FALSE, oncontextmenu: FALSE,
menuItem: this, className: "MathJax_Menu"
},title);
for (var i = 0, m = this.items.length; i < m; i++) {this.items[i].Create(menu)}
if (MENU.isMobile) {
HTML.addElement(menu,"span",{
className: "MathJax_Menu_Close", menu: parent,
ontouchstart: MENU.Close, ontouchend: FALSE, onmousedown: MENU.Close, onmouseup: FALSE
},[["img",{src: CONFIG.closeImg, style:{width:"100%",height:"100%"}}]]);
}
this.posted = true;
menu.style.width = (menu.offsetWidth+2) + "px";
var x = event.pageX, y = event.pageY;
if (!x && !y) {
x = event.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
y = event.clientY + document.body.scrollTop + document.documentElement.scrollTop;
}
if (!parent) {
if (x + menu.offsetWidth > document.body.offsetWidth - this.margin)
{x = document.body.offsetWidth - menu.offsetWidth - this.margin}
if (MENU.isMobile) {x = Math.max(5,x-Math.floor(menu.offsetWidth/2)); y -= 20}
MENU.skipUp = event.isContextMenu;
} else {
var side = "left", mw = parent.offsetWidth;
x = (MENU.isMobile ? 30 : mw - 2); y = 0;
while (parent && parent !== div) {
x += parent.offsetLeft; y += parent.offsetTop;
parent = parent.parentNode;
}
if (x + menu.offsetWidth > document.body.offsetWidth - this.margin && !MENU.isMobile)
{side = "right"; x = Math.max(this.margin,x - mw - menu.offsetWidth + 6)}
if (!isPC) {
// in case these ever get implemented
menu.style["borderRadiusTop"+side] = 0; // Opera 10.5
menu.style["WebkitBorderRadiusTop"+side] = 0; // Safari and Chrome
menu.style["MozBorderRadiusTop"+side] = 0; // Firefox
menu.style["KhtmlBorderRadiusTop"+side] = 0; // Konqueror
}
}
menu.style.left = x+"px"; menu.style.top = y+"px";
if (document.selection && document.selection.empty) {document.selection.empty()}
return FALSE(event);
},
/*
* Remove the menu from the screen
*/
Remove: function (event,menu) {
SIGNAL.Post(["unpost",MENU.jax]);
var div = document.getElementById("MathJax_MenuFrame");
if (div) {
div.parentNode.removeChild(div);
if (this.msieFixedPositionBug) {detachEvent("onresize",MENU.Resize)}
}
if (MENU.jax.hover) {
delete MENU.jax.hover.nofade;
HOVER.UnHover(MENU.jax);
}
return FALSE(event);
},
/*
* Find a named item in a menu (or submenu).
* A list of names means descend into submenus.
*/
Find: function (name) {
var names = [].slice.call(arguments,1);
for (var i = 0, m = this.items.length; i < m; i++) {
if (this.items[i].name === name) {
if (names.length) {
if (!this.items[i].menu) {return null}
return this.items[i].menu.Find.apply(this.items[i].menu,names);
}
return this.items[i];
}
}
return null;
},
/*
* Find the index of a menu item (so we can insert before or after it)
*/
IndexOf: function (name) {
for (var i = 0, m = this.items.length; i < m; i++)
{if (this.items[i].name === name) {return i}}
return null;
}
},{
config: CONFIG,
div: null, // the DOM elements for the menu and submenus
Close: function (event)
{return MENU.Event(event,this.menu||this.parentNode,(this.menu?"Touchend":"Remove"))},
Remove: function (event) {return MENU.Event(event,this,"Remove")},
Mouseover: function (event) {return MENU.Event(event,this,"Mouseover")},
Mouseout: function (event) {return MENU.Event(event,this,"Mouseout")},
Mousedown: function (event) {return MENU.Event(event,this,"Mousedown")},
Mouseup: function (event) {return MENU.Event(event,this,"Mouseup")},
Touchstart: function (event) {return MENU.Event(event,this,"Touchstart")},
Touchend: function (event) {return MENU.Event(event,this,"Touchend")},
Event: function (event,menu,type,force) {
if (MENU.skipMouseover && type === "Mouseover" && !force) {return FALSE(event)}
if (MENU.skipUp) {
if (type.match(/Mouseup|Touchend/)) {delete MENU.skipUp; return FALSE(event)}
if (type === "Touchstart" ||
(type === "Mousedown" && !MENU.skipMousedown)) {delete MENU.skipUp}
}
if (!event) {event = window.event}
var item = menu.menuItem;
if (item && item[type]) {return item[type](event,menu)}
return null;
},
/*
* Style for the background DIV
*/
BGSTYLE: {
position:"absolute", left:0, top:0, "z-index":200,
width:"100%", height:"100%", border:0, padding:0, margin:0
},
Background: function (menu) {
var div = HTML.addElement(document.body,"div",{style:this.BGSTYLE, id:"MathJax_MenuFrame"},
[["div",{style: this.BGSTYLE, menuItem: menu, onmousedown: this.Remove}]]);
var bg = div.firstChild;
if (menu.msieBackgroundBug) {
// MSIE doesn't allow transparent background to be hit boxes, so
// fake it using opacity with solid background color
bg.style.backgroundColor = "white"; bg.style.filter = "alpha(opacity=0)";
}
if (menu.msieFixedPositionBug) {
// MSIE can't do fixed position, so use a full-sized background
// and an onresize handler to update it (stupid, but necessary)
div.width = div.height = 0; this.Resize();
attachEvent("onresize",this.Resize);
} else {
// otherwise, use a fixed position DIV to cover the viewport
bg.style.position = "fixed";
}
return div;
},
Resize: function () {setTimeout(MENU.SetWH,0)},
SetWH: function () {
var bg = document.getElementById("MathJax_MenuFrame");
if (bg) {
bg = bg.firstChild;
bg.style.width = bg.style.height = "1px"; // so scrollWidth/Height will be right below
bg.style.width = document.body.scrollWidth + "px";
bg.style.height = document.body.scrollHeight + "px";
}
},
saveCookie: function () {HTML.Cookie.Set("menu",this.cookie)},
getCookie: function () {this.cookie = HTML.Cookie.Get("menu")},
//
// Preload images so they show up with the menu
//
getImages: function () {
if (MENU.isMobile) {var close = new Image(); close.src = CONFIG.closeImg}
}
});
/*************************************************************/
/*
* The menu item root subclass
*/
var ITEM = MENU.ITEM = MathJax.Object.Subclass({
name: "", // the menu item's label
Create: function (menu) {
if (!this.hidden) {
var def = {
onmouseover: MENU.Mouseover, onmouseout: MENU.Mouseout,
onmouseup: MENU.Mouseup, onmousedown: MENU.Mousedown,
ondragstart: FALSE, onselectstart: FALSE, onselectend: FALSE,
ontouchstart: MENU.Touchstart, ontouchend: MENU.Touchend,
className: "MathJax_MenuItem", menuItem: this
};
if (this.disabled) {def.className += " MathJax_MenuDisabled"}
HTML.addElement(menu,"div",def,this.Label(def,menu));
}
},
Mouseover: function (event,menu) {
if (!this.disabled) {this.Activate(menu)}
if (!this.menu || !this.menu.posted) {
var menus = document.getElementById("MathJax_MenuFrame").childNodes,
items = menu.parentNode.childNodes;
for (var i = 0, m = items.length; i < m; i++) {
var item = items[i].menuItem;
if (item && item.menu && item.menu.posted) {item.Deactivate(items[i])}
}
m = menus.length-1;
while (m >= 0 && menu.parentNode.menuItem !== menus[m].menuItem) {
menus[m].menuItem.posted = false;
menus[m].parentNode.removeChild(menus[m]);
m--;
}
if (this.Timer && !MENU.isMobile) {this.Timer(event,menu)}
}
},
Mouseout: function (event,menu) {
if (!this.menu || !this.menu.posted) {this.Deactivate(menu)}
if (this.timer) {clearTimeout(this.timer); delete this.timer}
},
Mouseup: function (event,menu) {return this.Remove(event,menu)},
Touchstart: function (event,menu) {return this.TouchEvent(event,menu,"Mousedown")},
Touchend: function (event,menu) {return this.TouchEvent(event,menu,"Mouseup")},
TouchEvent: function (event,menu,type) {
if (this !== ITEM.lastItem) {
if (ITEM.lastMenu) {MENU.Event(event,ITEM.lastMenu,"Mouseout")}
MENU.Event(event,menu,"Mouseover",true);
ITEM.lastItem = this; ITEM.lastMenu = menu;
}
if (this.nativeTouch) {return null}
MENU.Event(event,menu,type);
return false;
},
Remove: function (event,menu) {
menu = menu.parentNode.menuItem;
return menu.Remove(event,menu);
},
Activate: function (menu) {this.Deactivate(menu); menu.className += " MathJax_MenuActive"},
Deactivate: function (menu) {menu.className = menu.className.replace(/ MathJax_MenuActive/,"")},
With: function (def) {if (def) {HUB.Insert(this,def)}; return this}
});
/*************************************************************/
/*
* A menu item that performs a command when selected
*/
MENU.ITEM.COMMAND = MENU.ITEM.Subclass({
action: function () {},
Init: function (name,action,def) {
this.name = name; this.action = action;
this.With(def);
},
Label: function (def,menu) {return [this.name]},
Mouseup: function (event,menu) {
if (!this.disabled) {
this.Remove(event,menu);
SIGNAL.Post(["command",this]);
this.action.call(this,event);
}
return FALSE(event);
}
});
/*************************************************************/
/*
* A menu item that posts a submenu
*/
MENU.ITEM.SUBMENU = MENU.ITEM.Subclass({
menu: null, // the submenu
marker: (isPC && !HUB.Browser.isSafari ? "\u25B6" : "\u25B8"), // the menu arrow
Init: function (name,def) {
this.name = name; var i = 1;
if (!(def instanceof MENU.ITEM)) {this.With(def), i++}
this.menu = MENU.apply(MENU,[].slice.call(arguments,i));
},
Label: function (def,menu) {
this.menu.posted = false;
return [this.name+" ",["span",{className:"MathJax_MenuArrow"},[this.marker]]];
},
Timer: function (event,menu) {
if (this.timer) {clearTimeout(this.timer)}
event = {clientX: event.clientX, clientY: event.clientY}; // MSIE can't pass the event below
this.timer = setTimeout(CALLBACK(["Mouseup",this,event,menu]),CONFIG.delay);
},
Touchend: function (event,menu) {
var forceout = this.menu.posted;
var result = this.SUPER(arguments).Touchend.apply(this,arguments);
if (forceout) {this.Deactivate(menu); delete ITEM.lastItem; delete ITEM.lastMenu}
return result;
},
Mouseup: function (event,menu) {
if (!this.disabled) {
if (!this.menu.posted) {
if (this.timer) {clearTimeout(this.timer); delete this.timer}
this.menu.Post(event,menu);
} else {
var menus = document.getElementById("MathJax_MenuFrame").childNodes,
m = menus.length-1;
while (m >= 0) {
var child = menus[m];
child.menuItem.posted = false;
child.parentNode.removeChild(child);
if (child.menuItem === this.menu) {break};
m--;
}
}
}
return FALSE(event);
}
});
/*************************************************************/
/*
* A menu item that is one of several radio buttons
*/
MENU.ITEM.RADIO = MENU.ITEM.Subclass({
variable: null, // the variable name
marker: (isPC ? "\u25CF" : "\u2713"), // the checkmark
Init: function (name,variable,def) {
this.name = name; this.variable = variable; this.With(def);
if (this.value == null) {this.value = this.name}
},
Label: function (def,menu) {
var span = {className:"MathJax_MenuRadioCheck"};
if (CONFIG.settings[this.variable] !== this.value) {span = {style:{display:"none"}}}
return [["span",span,[this.marker]]," "+this.name];
},
Mouseup: function (event,menu) {
if (!this.disabled) {
var child = menu.parentNode.childNodes;
for (var i = 0, m = child.length; i < m; i++) {
var item = child[i].menuItem;
if (item && item.variable === this.variable)
{child[i].firstChild.style.display = "none"}
}
menu.firstChild.display = "";
CONFIG.settings[this.variable] = this.value;
MENU.cookie[this.variable] = CONFIG.settings[this.variable]; MENU.saveCookie();
SIGNAL.Post(["radio button",this]);
}
this.Remove(event,menu);
if (this.action && !this.disabled) {this.action.call(MENU,this)}
return FALSE(event);
}
});
/*************************************************************/
/*
* A menu item that is checkable
*/
MENU.ITEM.CHECKBOX = MENU.ITEM.Subclass({
variable: null, // the variable name
marker: "\u2713", // the checkmark
Init: function (name,variable,def) {
this.name = name; this.variable = variable; this.With(def);
},
Label: function (def,menu) {
var span = {className:"MathJax_MenuCheck"};
if (!CONFIG.settings[this.variable]) {span = {style:{display:"none"}}}
return [["span",span,[this.marker]]," "+this.name];
},
Mouseup: function (event,menu) {
if (!this.disabled) {
menu.firstChild.display = (CONFIG.settings[this.variable] ? "none" : "");
CONFIG.settings[this.variable] = !CONFIG.settings[this.variable];
MENU.cookie[this.variable] = CONFIG.settings[this.variable]; MENU.saveCookie();
SIGNAL.Post(["checkbox",this]);
}
this.Remove(event,menu);
if (this.action && !this.disabled) {this.action.call(MENU,this)}
return FALSE(event);
}
});
/*************************************************************/
/*
* A menu item that is a label
*/
MENU.ITEM.LABEL = MENU.ITEM.Subclass({
Init: function (name,def) {this.name = name; this.With(def)},
Label: function (def,menu) {
delete def.onmouseover, delete def.onmouseout; delete def.onmousedown;
def.className += " MathJax_MenuLabel";
return [this.name];
}
});
/*************************************************************/
/*
* A rule in a menu
*/
MENU.ITEM.RULE = MENU.ITEM.Subclass({
Label: function (def,menu) {
delete def.onmouseover, delete def.onmouseout; delete def.onmousedown;
def.className += " MathJax_MenuRule";
return null;
}
});
/*************************************************************/
/*************************************************************/
/*
* Handle the ABOUT box
*/
MENU.About = function () {
var HTMLCSS = OUTPUT["HTML-CSS"] || {fontInUse: ""};
var local = (HTMLCSS.webFonts ? "" : "local "), web = (HTMLCSS.webFonts ? " web" : "");
var font = (HTMLCSS.imgFonts ? "Image" : local+HTMLCSS.fontInUse+web) + " fonts";
if (font === "local fonts" && OUTPUT.SVG) {font = "web SVG fonts"}
var jax = ["MathJax.js v"+MathJax.fileversion,["br"]];
jax.push(["div",{style:{"border-top":"groove 2px",margin:".25em 0"}}]);
MENU.About.GetJax(jax,MathJax.InputJax,"Input Jax");
MENU.About.GetJax(jax,MathJax.OutputJax,"Output Jax");
MENU.About.GetJax(jax,MathJax.ElementJax,"Element Jax");
jax.push(["div",{style:{"border-top":"groove 2px",margin:".25em 0"}}]);
MENU.About.GetJax(jax,MathJax.Extension,"Extension",true);
jax.push(["div",{style:{"border-top":"groove 2px",margin:".25em 0"}}],["center",{},[
HUB.Browser + " v"+HUB.Browser.version +
(HTMLCSS.webFonts && !HTMLCSS.imgFonts ? " \u2014 "+HTMLCSS.allowWebFonts+" fonts" : "")
]]);
MENU.About.div = MENU.Background(MENU.About);
var about = HTML.addElement(MENU.About.div,"div",{
id: "MathJax_About", onclick: MENU.About.Remove
},[
["b",{style:{fontSize:"120%"}},["MathJax"]]," v"+MathJax.version,["br"],
"using "+font,["br"],["br"],
["span",{style:{
display:"inline-block", "text-align":"left", "font-size":"80%",
"max-height":"20em", overflow:"auto",
"background-color":"#E4E4E4", padding:".4em .6em", border:"1px inset"
}},jax],["br"],["br"],
["a",{href:"http://www.mathjax.org/"},["www.mathjax.org"]]
]);
var doc = (document.documentElement||{});
var H = window.innerHeight || doc.clientHeight || doc.scrollHeight || 0;
if (MENU.prototype.msieAboutBug) {
about.style.width = "20em"; about.style.position = "absolute";
about.style.left = Math.floor((document.documentElement.scrollWidth - about.offsetWidth)/2)+"px";
about.style.top = (Math.floor((H-about.offsetHeight)/3)+document.body.scrollTop)+"px";
} else {
about.style.marginLeft = Math.floor(-about.offsetWidth/2)+"px";
about.style.top = Math.floor((H-about.offsetHeight)/3)+"px";
}
};
MENU.About.Remove = function (event) {
if (MENU.About.div) {document.body.removeChild(MENU.About.div); delete MENU.About.div}
};
MENU.About.GetJax = function (jax,JAX,type,noTypeCheck) {
var info = [];
for (var id in JAX) {if (JAX.hasOwnProperty(id) && JAX[id]) {
if ((noTypeCheck && JAX[id].version) || (JAX[id].isa && JAX[id].isa(JAX)))
{info.push((JAX[id].id||id)+" "+type+" v"+JAX[id].version)}
}}
info.sort();
for (var i = 0, m = info.length; i < m; i++) {jax.push(info[i],["br"])}
return jax;
};
/*
* Handle the MathJax HELP menu
*/
MENU.Help = function () {
window.open(CONFIG.helpURL,"MathJaxHelp");
};
/*
* Handle showing of element's source
*/
MENU.ShowSource = function (event) {
if (!event) {event = window.event}
var EVENT = {screenX:event.screenX, screenY:event.screenY};
if (!MENU.jax) return;
if (this.format === "MathML") {
var MML = MathJax.ElementJax.mml;
if (MML && typeof(MML.mbase.prototype.toMathML) !== "undefined") {
// toMathML() can call MathJax.Hub.RestartAfter, so trap errors and check
try {MENU.ShowSource.Text(MENU.jax.root.toMathML(),event)} catch (err) {
if (!err.restart) {throw err}
CALLBACK.After([this,MENU.ShowSource,EVENT]);
}
} else if (!AJAX.loadingToMathML) {
AJAX.loadingToMathML = true;
MENU.ShowSource.Window(event); // WeBKit needs to open window on click event
CALLBACK.Queue(
AJAX.Require("[MathJax]/extensions/toMathML.js"),
function () {
delete AJAX.loadingToMathML;
if (!MML.mbase.prototype.toMathML) {MML.mbase.prototype.toMathML = function () {}}
},
[this,MENU.ShowSource,EVENT] // call this function again
);
return;
}
} else {
if (MENU.jax.originalText == null) {alert("No original form available"); return}
MENU.ShowSource.Text(MENU.jax.originalText,event);
}
};
MENU.ShowSource.Window = function (event) {
if (!MENU.ShowSource.w) {
var def = [], DEF = CONFIG.windowSettings;
for (var id in DEF) {if (DEF.hasOwnProperty(id)) {def.push(id+"="+DEF[id])}}
MENU.ShowSource.w = window.open("","_blank",def.join(","));
}
return MENU.ShowSource.w;
};
MENU.ShowSource.Text = function (text,event) {
var w = MENU.ShowSource.Window(event);
text = text.replace(/^\s*/,"").replace(/\s*$/,"");
text = text.replace(/&/g,"&").replace(//g,">");
if (MENU.isMobile) {
w.document.open();
w.document.write("MathJax Equation Source");
w.document.write(""+text+"
");
w.document.write("
");
w.document.write("");
w.document.close();
} else {
w.document.open();
w.document.write("MathJax Equation Source");
w.document.write("");
w.document.write("");
w.document.close();
var table = w.document.body.firstChild;
var H = (w.outerHeight-w.innerHeight)||30, W = (w.outerWidth-w.innerWidth)||30;
W = Math.min(Math.floor(.5*screen.width),table.offsetWidth+W+25);
H = Math.min(Math.floor(.5*screen.height),table.offsetHeight+H+25);
w.resizeTo(W,H);
if (event && event.screenX != null) {
var x = Math.max(0,Math.min(event.screenX-Math.floor(W/2), screen.width-W-20)),
y = Math.max(0,Math.min(event.screenY-Math.floor(H/2), screen.height-H-20));
w.moveTo(x,y);
}
}
delete MENU.ShowSource.w;
};
/*
* Handle rescaling all the math
*/
MENU.Scale = function () {
var HTMLCSS = OUTPUT["HTML-CSS"], nMML = OUTPUT.NativeMML;
var SCALE = (HTMLCSS ? HTMLCSS.config.scale : nMML.config.scale);
var scale = prompt("Scale all mathematics (compared to surrounding text) by",SCALE+"%");
if (scale) {
if (scale.match(/^\s*\d+\s*%?\s*$/)) {
scale = parseInt(scale);
if (scale) {
if (scale !== SCALE) {
if (HTMLCSS) {HTMLCSS.config.scale = scale}
if (nMML) {nMML.config.scale = scale}
MENU.cookie.scale = scale;
MENU.saveCookie(); HUB.Reprocess();
}
} else {alert("The scale should not be zero")}
} else {alert("The scale should be a perentage (e.g., 120%)")}
}
};
/*
* Handle loading the zoom code
*/
MENU.Zoom = function () {
if (!MathJax.Extension.MathZoom) {AJAX.Require("[MathJax]/extensions/MathZoom.js")}
};
/*
* Handle changing the renderer
*/
MENU.Renderer = function () {
var jax = HUB.outputJax["jax/mml"];
if (jax[0] !== CONFIG.settings.renderer) {
var BROWSER = HUB.Browser, message, MESSAGE = MENU.Renderer.Messages, warned;
//
// Check that the new renderer is appropriate for the browser
//
switch (CONFIG.settings.renderer) {
case "NativeMML":
if (!CONFIG.settings.warnedMML) {
if (BROWSER.isChrome || (BROWSER.isSafari && !BROWSER.versionAtLeast("5.0"))) {message = MESSAGE.MML.WebKit}
else if (BROWSER.isMSIE) {if (!BROWSER.hasMathPlayer) {message = MESSAGE.MML.MSIE}}
else {message = MESSAGE.MML[BROWSER]}
warned = "warnedMML";
}
break;
case "SVG":
if (!CONFIG.settings.warnedSVG) {
if (BROWSER.isMSIE && !isIE9) {message = MESSAGE.SVG.MSIE}
}
break;
}
if (message) {
message += "\n\nSwitch the renderer anyway?\n\n" +
"(Press OK to switch, CANCEL to continue with the current renderer)";
MENU.cookie.renderer = jax[0].id; MENU.saveCookie(); if (!confirm(message)) {return}
if (warned) {MENU.cookie[warned] = CONFIG.settings[warned] = true}
MENU.cookie.renderer = CONFIG.settings.renderer; MENU.saveCookie();
}
HUB.Queue(
["setRenderer",HUB,CONFIG.settings.renderer,"jax/mml"],
["Rerender",HUB]
);
}
};
MENU.Renderer.Messages = {
MML: {
WebKit: "Your browser doesn't seem to support MathML natively, " +
"so switching to MathML output may cause the mathematics " +
"on the page to become unreadable.",
MSIE: "Internet Explorer requires the MathPlayer plugin " +
"in order to process MathML output.",
Opera: "Opera's support for MathML is limited, so switching to " +
"MathML output may cause some expressions to render poorly.",
Firefox: "Your browser's native MathML does not implement all the features " +
"used by MathJax, so some expressions my render improperly."
},
SVG: {
MSIE: "SVG is not implemented in Internet Explorer prior to " +
"IE9, or when the browser is emulating IE8 or below. " +
"Switching to SVG output will cause the mathemtics to " +
"not display properly."
}
};
/*
* Handle setting the HTMLCSS fonts
*/
MENU.Font = function () {
var HTMLCSS = OUTPUT["HTML-CSS"]; if (!HTMLCSS) return;
document.location.reload();
};
/*
* Handle setting MathPlayer events
*/
MENU.MPEvents = function (item) {
var discoverable = CONFIG.settings.discoverable,
MESSAGE = MENU.MPEvents.Messages;
if (!isIE9) {
if (CONFIG.settings.mpMouse && !confirm(MESSAGE.IE8warning)) {
delete MENU.cookie.mpContext; delete CONFIG.settings.mpContext;
delete MENU.cookie.mpMouse; delete CONFIG.settings.mpMouse;
MENU.saveCookie();
return;
}
CONFIG.settings.mpContext = CONFIG.settings.mpMouse;
MENU.cookie.mpContext = MENU.cookie.mpMouse = CONFIG.settings.mpMouse;
MENU.saveCookie();
MathJax.Hub.Queue(["Rerender",MathJax.Hub])
} else if (!discoverable && item.name === "Menu Events" && CONFIG.settings.mpContext) {
alert(MESSAGE.IE9warning);
}
};
MENU.MPEvents.Messages = {
IE8warning:
"This will disable the MathJax menu and zoom features, " +
"but you can Alt-Click on an expression to obtain the MathJax " +
"menu instead.\n\nReally change the MathPlayer settings?",
IE9warning:
"The MathJax contextual menu will be disabled, but you can " +
"Alt-Click on an expression to obtain the MathJax menu instead."
};
/*************************************************************/
/*************************************************************/
HUB.Browser.Select({
MSIE: function (browser) {
var quirks = (document.compatMode === "BackCompat");
var isIE8 = browser.versionAtLeast("8.0") && document.documentMode > 7;
MENU.Augment({
margin: 20,
msieBackgroundBug: true,
msieFixedPositionBug: (quirks || !isIE8),
msieAboutBug: quirks
});
if (isIE9) {
delete CONFIG.styles["#MathJax_About"].filter;
delete CONFIG.styles[".MathJax_Menu"].filter;
}
},
Firefox: function (browser) {
MENU.skipMouseover = browser.isMobile && browser.versionAtLeast("6.0");
MENU.skipMousedown = browser.isMobile;
}
});
MENU.isMobile = HUB.Browser.isMobile;
MENU.noContextMenu = HUB.Browser.noContextMenu;
/*************************************************************/
HUB.Register.StartupHook("End Config",function () {
/*
* Get the menu settings from the HUB (which includes the
* data from the cookie already), and add the format, if
* it wasn't set in the cookie.
*/
CONFIG.settings = HUB.config.menuSettings;
if (typeof(CONFIG.settings.showRenderer) !== "undefined") {CONFIG.showRenderer = CONFIG.settings.showRenderer}
if (typeof(CONFIG.settings.showFontMenu) !== "undefined") {CONFIG.showFontMenu = CONFIG.settings.showFontMenu}
if (typeof(CONFIG.settings.showContext) !== "undefined") {CONFIG.showContext = CONFIG.settings.showContext}
MENU.getCookie();
/*
* The main menu
*/
MENU.menu = MENU(
ITEM.SUBMENU("Show Math As",
ITEM.COMMAND("MathML Code", MENU.ShowSource, {nativeTouch: true, format: "MathML"}),
ITEM.COMMAND("Original Form", MENU.ShowSource, {nativeTouch: true}),
ITEM.RULE(),
ITEM.CHECKBOX("Show TeX hints in MathML", "texHints")
),
ITEM.RULE(),
ITEM.SUBMENU("Math Settings",
ITEM.SUBMENU("Zoom Trigger",
ITEM.RADIO("Hover", "zoom", {action: MENU.Zoom}),
ITEM.RADIO("Click", "zoom", {action: MENU.Zoom}),
ITEM.RADIO("Double-Click", "zoom", {action: MENU.Zoom}),
ITEM.RADIO("No Zoom", "zoom", {value: "None"}),
ITEM.RULE(),
ITEM.LABEL("Trigger Requires:"),
ITEM.CHECKBOX((HUB.Browser.isMac ? "Option" : "Alt"), "ALT"),
ITEM.CHECKBOX("Command", "CMD", {hidden: !HUB.Browser.isMac}),
ITEM.CHECKBOX("Control", "CTRL", {hidden: HUB.Browser.isMac}),
ITEM.CHECKBOX("Shift", "Shift")
),
ITEM.SUBMENU("Zoom Factor",
ITEM.RADIO("125%", "zscale"),
ITEM.RADIO("133%", "zscale"),
ITEM.RADIO("150%", "zscale"),
ITEM.RADIO("175%", "zscale"),
ITEM.RADIO("200%", "zscale"),
ITEM.RADIO("250%", "zscale"),
ITEM.RADIO("300%", "zscale"),
ITEM.RADIO("400%", "zscale")
),
ITEM.RULE(),
ITEM.SUBMENU("Math Renderer", {hidden:!CONFIG.showRenderer},
ITEM.RADIO("HTML-CSS", "renderer", {action: MENU.Renderer}),
ITEM.RADIO("MathML", "renderer", {action: MENU.Renderer, value:"NativeMML"}),
ITEM.RADIO("SVG", "renderer", {action: MENU.Renderer})
),
ITEM.SUBMENU("MathPlayer", {hidden:!HUB.Browser.isMSIE ||
!CONFIG.showMathPlayer,
disabled:!HUB.Browser.hasMathPlayer},
ITEM.LABEL("Let MathPlayer Handle:"),
ITEM.CHECKBOX("Menu Events", "mpContext", {action: MENU.MPEvents, hidden:!isIE9}),
ITEM.CHECKBOX("Mouse Events", "mpMouse", {action: MENU.MPEvents, hidden:!isIE9}),
ITEM.CHECKBOX("Mouse and Menu Events", "mpMouse", {action: MENU.MPEvents, hidden:isIE9})
),
ITEM.SUBMENU("Font Preference", {hidden:!CONFIG.showFontMenu},
ITEM.LABEL("For HTML-CSS:"),
ITEM.RADIO("Auto", "font", {action: MENU.Font}),
ITEM.RULE(),
ITEM.RADIO("TeX (local)", "font", {action: MENU.Font}),
ITEM.RADIO("TeX (web)", "font", {action: MENU.Font}),
ITEM.RADIO("TeX (image)", "font", {action: MENU.Font}),
ITEM.RULE(),
ITEM.RADIO("STIX (local)", "font", {action: MENU.Font})
),
ITEM.SUBMENU("Contextual Menu", {hidden:!CONFIG.showContext},
ITEM.RADIO("MathJax", "context"),
ITEM.RADIO("Browser", "context")
),
ITEM.COMMAND("Scale All Math ...",MENU.Scale),
ITEM.RULE().With({hidden:!CONFIG.showDiscoverable, name:"discover_rule"}),
ITEM.CHECKBOX("Highlight on Hover", "discoverable", {hidden:!CONFIG.showDiscoverable})
),
ITEM.RULE(),
ITEM.COMMAND("About MathJax",MENU.About),
ITEM.COMMAND("MathJax Help",MENU.Help)
);
if (MENU.isMobile) {
(function () {
var settings = CONFIG.settings;
var trigger = MENU.menu.Find("Math Settings","Zoom Trigger").menu;
trigger.items[0].disabled = trigger.items[1].disabled = true;
if (settings.zoom === "Hover" || settings.zoom == "Click") {settings.zoom = "None"}
trigger.items = trigger.items.slice(0,4);
if (navigator.appVersion.match(/[ (]Android[) ]/)) {
MENU.ITEM.SUBMENU.Augment({marker: "\u00BB"});
}
})();
}
});
MENU.showRenderer = function (show) {
MENU.cookie.showRenderer = CONFIG.showRenderer = show; MENU.saveCookie();
MENU.menu.Find("Math Settings","Math Renderer").hidden = !show;
};
MENU.showMathPlayer = function (show) {
MENU.cookie.showMathPlayer = CONFIG.showMathPlayer = show; MENU.saveCookie();
MENU.menu.Find("Math Settings","MathPlayer").hidden = !show;
};
MENU.showFontMenu = function (show) {
MENU.cookie.showFontMenu = CONFIG.showFontMenu = show; MENU.saveCookie();
MENU.menu.Find("Math Settings","Font Preference").hidden = !show;
};
MENU.showContext = function (show) {
MENU.cookie.showContext = CONFIG.showContext = show; MENU.saveCookie();
MENU.menu.Find("Math Settings","Contextual Menu").hidden = !show;
};
MENU.showDiscoverable = function (show) {
MENU.cookie.showContext = CONFIG.showContext = show; MENU.saveCookie();
MENU.menu.Find("Math Settings","Highlight on Hover").hidden = !show;
MENU.menu.Find("Math Settings","discover_rule").hidden = !show;
};
MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function () {
if (!MathJax.OutputJax["HTML-CSS"].config.imageFont)
{MENU.menu.Find("Math Settings","Font Preference","TeX (image)").disabled = true}
});
/*************************************************************/
CALLBACK.Queue(
HUB.Register.StartupHook("End Config",{}), // wait until config is complete
["getImages",MENU],
["Styles",AJAX,CONFIG.styles],
["Post",HUB.Startup.signal,"MathMenu Ready"],
["loadComplete",AJAX,"[MathJax]/extensions/MathMenu.js"]
);
})(MathJax.Hub,MathJax.HTML,MathJax.Ajax,MathJax.CallBack,MathJax.OutputJax);