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Add touch event support for mobile devices so they can access the menus (still need to work on Firefox support, but works for WebKit-based mobiles)

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This commit is contained in:
Davide P. Cervone 2011-08-14 20:17:42 -04:00
parent da8d4885fb
commit 816d2cbcfd
18 changed files with 207 additions and 66 deletions
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2
MathJax.js
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config/Accessible-full.js
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config/Accessible.js
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config/MML_HTMLorMML-full.js
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config/MML_HTMLorMML.js
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config/TeX-AMS-MML_HTMLorMML-full.js
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config/TeX-AMS-MML_HTMLorMML.js
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config/TeX-AMS_HTML-full.js
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config/TeX-AMS_HTML.js
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extensions/MathMenu.js
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jax/output/HTML-CSS/config.js
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@ -12,5 +12,5 @@
* http://www.apache.org/licenses/LICENSE-2.0
*/
MathJax.OutputJax["HTML-CSS"]=MathJax.OutputJax({id:"HTML-CSS",version:"1.1.5",directory:MathJax.OutputJax.directory+"/HTML-CSS",extensionDir:MathJax.OutputJax.extensionDir+"/HTML-CSS",autoloadDir:MathJax.OutputJax.directory+"/HTML-CSS/autoload",fontDir:MathJax.OutputJax.directory+"/HTML-CSS/fonts",webfontDir:MathJax.OutputJax.fontDir+"/HTML-CSS",config:{scale:100,minScaleAdjust:50,availableFonts:["STIX","TeX"],preferredFont:"TeX",webFont:"TeX",imageFont:"TeX",undefinedFamily:"STIXGeneral,'Arial Unicode MS',serif",showMathMenu:true,styles:{".MathJax_Display":{"text-align":"center",margin:"1em 0em"},".MathJax .merror":{"background-color":"#FFFF88",color:"#CC0000",border:"1px solid #CC0000",padding:"1px 3px","font-family":"serif","font-style":"normal","font-size":"90%"},".MathJax_Preview":{color:"#888888"},"#MathJax_Tooltip":{"background-color":"InfoBackground",color:"InfoText",border:"1px solid black","box-shadow":"2px 2px 5px #AAAAAA","-webkit-box-shadow":"2px 2px 5px #AAAAAA","-moz-box-shadow":"2px 2px 5px #AAAAAA","-khtml-box-shadow":"2px 2px 5px #AAAAAA",filter:"progid:DXImageTransform.Microsoft.dropshadow(OffX=2, OffY=2, Color='gray', Positive='true')",padding:"3px 4px"}}}});if(MathJax.Hub.Browser.isMSIE&&document.documentMode>=9){delete MathJax.OutputJax["HTML-CSS"].config.styles["#MathJax_Tooltip"].filter}if(!MathJax.Hub.config.delayJaxRegistration){MathJax.OutputJax["HTML-CSS"].Register("jax/mml")}MathJax.Hub.Register.StartupHook("End Config",[function(b,c){var a=b.Insert({minBrowserVersion:{Firefox:3,Opera:9.52,MSIE:6,Chrome:0.3,Safari:2,Konqueror:4},inlineMathDelimiters:["$","$"],displayMathDelimiters:["$$","$$"],multilineDisplay:true,minBrowserTranslate:function(f){var e=b.getJaxFor(f),k=["[Math]"],j;var h=document.createElement("span",{className:"MathJax_Preview"});if(e.inputJax.id==="TeX"){if(e.root.Get("displaystyle")){j=a.displayMathDelimiters;k=[j[0]+e.originalText+j[1]];if(a.multilineDisplay){k=k[0].split(/\n/)}}else{j=a.inlineMathDelimiters;k=[j[0]+e.originalText.replace(/^\s+/,"").replace(/\s+$/,"")+j[1]]}}for(var g=0,d=k.length;g<d;g++){h.appendChild(document.createTextNode(k[g]));if(g<d-1){h.appendChild(document.createElement("br"))}}f.parentNode.insertBefore(h,f)}},(b.config["HTML-CSS"]||{}));if(b.Browser.version!=="0.0"&&!b.Browser.versionAtLeast(a.minBrowserVersion[b.Browser]||0)){c.Translate=a.minBrowserTranslate;b.Config({showProcessingMessages:false});MathJax.Message.Set("Your browser does not support MathJax",null,4000);b.Startup.signal.Post("MathJax not supported")}},MathJax.Hub,MathJax.OutputJax["HTML-CSS"]]);MathJax.OutputJax["HTML-CSS"].loadComplete("config.js");
MathJax.OutputJax["HTML-CSS"]=MathJax.OutputJax({id:"HTML-CSS",version:"1.1.6",directory:MathJax.OutputJax.directory+"/HTML-CSS",extensionDir:MathJax.OutputJax.extensionDir+"/HTML-CSS",autoloadDir:MathJax.OutputJax.directory+"/HTML-CSS/autoload",fontDir:MathJax.OutputJax.directory+"/HTML-CSS/fonts",webfontDir:MathJax.OutputJax.fontDir+"/HTML-CSS",config:{scale:100,minScaleAdjust:50,availableFonts:["STIX","TeX"],preferredFont:"TeX",webFont:"TeX",imageFont:"TeX",undefinedFamily:"STIXGeneral,'Arial Unicode MS',serif",showMathMenu:true,styles:{".MathJax_Display":{"text-align":"center",margin:"1em 0em"},".MathJax .merror":{"background-color":"#FFFF88",color:"#CC0000",border:"1px solid #CC0000",padding:"1px 3px","font-family":"serif","font-style":"normal","font-size":"90%"},".MathJax_Preview":{color:"#888888"},"#MathJax_Tooltip":{"background-color":"InfoBackground",color:"InfoText",border:"1px solid black","box-shadow":"2px 2px 5px #AAAAAA","-webkit-box-shadow":"2px 2px 5px #AAAAAA","-moz-box-shadow":"2px 2px 5px #AAAAAA","-khtml-box-shadow":"2px 2px 5px #AAAAAA",filter:"progid:DXImageTransform.Microsoft.dropshadow(OffX=2, OffY=2, Color='gray', Positive='true')",padding:"3px 4px"}}}});if(MathJax.Hub.Browser.isMSIE&&document.documentMode>=9){delete MathJax.OutputJax["HTML-CSS"].config.styles["#MathJax_Tooltip"].filter}if(!MathJax.Hub.config.delayJaxRegistration){MathJax.OutputJax["HTML-CSS"].Register("jax/mml")}MathJax.Hub.Register.StartupHook("End Config",[function(b,c){var a=b.Insert({minBrowserVersion:{Firefox:3,Opera:9.52,MSIE:6,Chrome:0.3,Safari:2,Konqueror:4},inlineMathDelimiters:["$","$"],displayMathDelimiters:["$$","$$"],multilineDisplay:true,minBrowserTranslate:function(f){var e=b.getJaxFor(f),k=["[Math]"],j;var h=document.createElement("span",{className:"MathJax_Preview"});if(e.inputJax.id==="TeX"){if(e.root.Get("displaystyle")){j=a.displayMathDelimiters;k=[j[0]+e.originalText+j[1]];if(a.multilineDisplay){k=k[0].split(/\n/)}}else{j=a.inlineMathDelimiters;k=[j[0]+e.originalText.replace(/^\s+/,"").replace(/\s+$/,"")+j[1]]}}for(var g=0,d=k.length;g<d;g++){h.appendChild(document.createTextNode(k[g]));if(g<d-1){h.appendChild(document.createElement("br"))}}f.parentNode.insertBefore(h,f)}},(b.config["HTML-CSS"]||{}));if(b.Browser.version!=="0.0"&&!b.Browser.versionAtLeast(a.minBrowserVersion[b.Browser]||0)){c.Translate=a.minBrowserTranslate;b.Config({showProcessingMessages:false});MathJax.Message.Set("Your browser does not support MathJax",null,4000);b.Startup.signal.Post("MathJax not supported")}},MathJax.Hub,MathJax.OutputJax["HTML-CSS"]]);MathJax.OutputJax["HTML-CSS"].loadComplete("config.js");

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jax/output/HTML-CSS/jax.js
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jax/output/NativeMML/jax.js
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unpacked/MathJax.js
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@ -30,7 +30,7 @@ if (!window.MathJax) {window.MathJax= {}}
if (!MathJax.Hub) { // skip if already loaded
MathJax.version = "1.1a";
MathJax.fileversion = "1.1.7";
MathJax.fileversion = "1.1.8";
/**********************************************************/
@ -2050,6 +2050,8 @@ MathJax.Hub.Startup = {
else if (v > 500) {browser.version = "3.0"}
else if (v > 400) {browser.version = "2.0"}
else if (v > 85) {browser.version = "1.0"}
browser.isMobile = (navigator.appVersion.match(/Mobile/i) != null);
browser.noContextMenu = browser.isMobile;
},
Firefox: function (browser) {
if (browser.version === "0.0" && navigator.product === "Gecko" && navigator.productSub) {
@ -2058,6 +2060,8 @@ MathJax.Hub.Startup = {
else if (date >= "20080617") {browser.version = "3.0"}
else if (date >= "20061024") {browser.version = "2.0"}
}
browser.isMobile = (navigator.appVersion.match(/Android/i) != null ||
navigator.userAgent.match(/ Fennec\//) != null);
},
Opera: function (browser) {browser.version = opera.version()},
MSIE: function (browser) {

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unpacked/extensions/MathMenu.js
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@ -24,7 +24,7 @@
*/
(function (HUB,HTML,AJAX) {
var VERSION = "1.1.4";
var VERSION = "1.1.5";
MathJax.Extension.MathMenu = {version: VERSION};
@ -148,7 +148,7 @@
}
return false;
};
/*************************************************************/
/*
* The main menu class
@ -170,7 +170,11 @@
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)}
if (!div) {
div = MENU.Background(this);
delete ITEM.lastItem; delete ITEM.lastMenu;
delete MENU.skipUp;
}
var menu = HTML.addElement(div,"div",{
onmouseup: MENU.Mouseup, ondblclick: this.False,
ondragstart: this.False, onselectstart: this.False, oncontextmenu: this.False,
@ -189,15 +193,16 @@
if (!parent) {
if (x + menu.offsetWidth > document.body.offsetWidth - this.margin)
{x = document.body.offsetWidth - menu.offsetWidth - this.margin}
if (MENU.isMobile) {x -= menu.offsetWidth / 2; y -= 20}
MENU.skipUp = true;
} else {
var side = "left", mw = parent.offsetWidth;
x = parent.offsetWidth - 2; y = 0;
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)
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
@ -228,22 +233,46 @@
if (MENU.skipUp) {delete MENU.skipUp} else {this.Remove(event,menu)}
},
False: FALSE
False: FALSE,
/*
* Find a named item in a menu (or submenu).
* A lsit 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;
}
},{
config: CONFIG,
div: null, // the DOM elements for the menu and submenus
Remove: function (event) {MENU.Event(event,this,"Remove")},
Mouseover: function (event) {MENU.Event(event,this,"Mouseover")},
Mouseout: function (event) {MENU.Event(event,this,"Mouseout")},
Mousedown: function (event) {MENU.Event(event,this,"Mousedown")},
Mouseup: function (event) {MENU.Event(event,this,"Mouseup")},
Mousemove: function (event) {MENU.Event(event,this,"Mousemove")},
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) {
if (!event) {event = window.event}
var item = menu.menuItem;
//debug(type+" "+(item||{}).name);
//try {
if (item && item[type]) {return item[type](event,menu)}
//} catch (err) {debug(err.message)}
return null;
},
@ -300,8 +329,9 @@
if (!this.hidden) {
var def = {
onmouseover: MENU.Mouseover, onmouseout: MENU.Mouseout,
onmouseup: MENU.Mouseup, onmousedown: this.False,
onmouseup: MENU.Mouseup, onmousedown: MENU.Mousedown,
ondragstart: this.False, onselectstart: this.False, onselectend: this.False,
ontouchstart: MENU.Touchstart, ontouchend: MENU.Touchend,
className: "MathJax_MenuItem", menuItem: this
};
if (this.disabled) {def.className += " MathJax_MenuDisabled"}
@ -332,7 +362,20 @@
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");
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);
@ -356,9 +399,10 @@
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); this.action.call(this,event)}
if (!this.disabled) {this.Remove(event,menu); this.action.call(this,event);}
return this.False(event);
}
});
@ -377,7 +421,7 @@
this.menu = MENU.apply(MENU,[].slice.call(arguments,i));
},
Label: function (def,menu) {
def.onmousemove = MENU.Mousemove; this.menu.posted = false;
this.menu.posted = false;
return [this.name+" ",["span",{className:"MathJax_MenuArrow"},[this.marker]]];
},
Timer: function (event,menu) {
@ -385,6 +429,20 @@
event = {clientX: event.clientX, clientY: event.clientY}; // MSIE can't pass the event below
this.timer = setTimeout(MathJax.Callback(["Mouseup",this,event,menu]),CONFIG.delay);
},
Touchstart: function (event,menu) {
this.skipUp = !this.menu.posted;
return this.SUPER(arguments).Touchstart.apply(this,arguments);
},
Touchend: function (event,menu) {
var result = false;
if (!this.skipUp) {
var forceout = this.menu.posted;
result = this.SUPER(arguments).Touchend.apply(this,arguments);
if (forceout) {this.Deactivate(menu); delete ITEM.lastItem; delete ITEM.lastMenu}
}
delete this.skipUp;
return result;
},
Mouseup: function (event,menu) {
if (!this.disabled) {
if (!this.menu.posted) {
@ -599,19 +657,29 @@
var w = MENU.ShowSource.Window(event);
text = text.replace(/^\s*/,"").replace(/\s*$/,"");
text = text.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;");
w.document.open();
w.document.write("<html><head><title>MathJax Equation Source</title></head><body style='font-size:85%'>");
w.document.write("<table><tr><td><pre>"+text+"</pre></td></tr></table>");
w.document.write("</body></html>"); 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);
if (MENU.isMobile) {
w.document.open();
w.document.write("<html><head><meta name='viewport' content='width=device-width, initial-scale=1.0' /><title>MathJax Equation Source</title></head><body style='font-size:85%'>");
w.document.write("<pre>"+text+"</pre>");
w.document.write("<hr><input type='button' value='Close' onclick='window.close()' />");
w.document.write("</body></html>");
w.document.close();
} else {
w.document.open();
w.document.write("<html><head><title>MathJax Equation Source</title></head><body style='font-size:85%'>");
w.document.write("<table><tr><td><pre>"+text+"</pre></td></tr></table>");
w.document.write("</body></html>");
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;
};
@ -691,6 +759,8 @@
}
}
});
MENU.isMobile = MathJax.Hub.Browser.isMobile;
MENU.noContextMenu = MathJax.Hub.Browser.noContextMenu;
/*************************************************************/
@ -713,7 +783,7 @@
* The main menu
*/
MENU.menu = MENU(
ITEM.COMMAND("Show Source",MENU.ShowSource),
ITEM.COMMAND("Show Source",MENU.ShowSource,{nativeTouch: true}),
ITEM.SUBMENU("Format",
ITEM.RADIO("MathML", "format"),
ITEM.RADIO("Original", "format", {value: "Original"})
@ -772,16 +842,30 @@
MENU.showRenderer = function (show) {
MENU.cookie.showRenderer = CONFIG.showRenderer = show; MENU.saveCookie();
MENU.menu.items[3].menu.item[3].hidden = !show;
MENU.menu.Find("Settings","Math Renderer").hidden = !show;
};
MENU.showFontMenu = function (show) {
MENU.cookie.showFontMenu = CONFIG.showFontMenu = show; MENU.saveCookie();
MENU.menu.items[3].menu.items[4].hidden = !show
MENU.menu.Find("Settings","Font Preference").hidden = !show;
};
MENU.showContext = function (show) {
MENU.cookie.showContext = CONFIG.showContext = show; MENU.saveCookie();
MENU.menu.items[3].menu.items[5].hidden = !show
MENU.menu.Find("Settings","Contextual Menu").hidden = !show;
};
if (MENU.isMobile) {
(function () {
var settings = MathJax.Hub.config.menuSettings;
var trigger = MENU.menu.Find("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 /)) {
MathJax.Menu.ITEM.SUBMENU.Augment({marker: "\u00BB"});
}
})();
}
/*************************************************************/

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unpacked/jax/output/HTML-CSS/config.js
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@ -24,7 +24,7 @@
MathJax.OutputJax["HTML-CSS"] = MathJax.OutputJax({
id: "HTML-CSS",
version: "1.1.5",
version: "1.1.6",
directory: MathJax.OutputJax.directory + "/HTML-CSS",
extensionDir: MathJax.OutputJax.extensionDir + "/HTML-CSS",
autoloadDir: MathJax.OutputJax.directory + "/HTML-CSS/autoload",

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unpacked/jax/output/HTML-CSS/jax.js
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@ -181,6 +181,57 @@
return def;
}
});
//
// Handle touch events.
//
// Use double-tap and hold as a replacement for context menu event.
// Use double-tap as a replacement for double click.
//
var TOUCH = {
last: 0, // time of last tap event
delay: 500, // delay time for double-click
//
// Check if this is a double-tap, and if so, start the timer
// for the double-tap and hold (to trigger the contextual menu)
//
start: function (event) {
var now = new Date().getTime();
var dblTap = (now - TOUCH.last < TOUCH.delay);
TOUCH.last = now;
if (dblTap) {
TOUCH.timeout = setTimeout(TOUCH.menu,TOUCH.delay,this,event);
event.preventDefault();
}
},
//
// Check if there is a timeout pending, i.e., we have a
// double-tap and were waiting to see if it is held long
// enough for the menu. Since we got the end before the
// timeout, it is a double-click, not a double-tap-and-hold.
// Prevent the default action and issue a double click.
//
end: function (event) {
if (TOUCH.timeout) {
clearTimeout(TOUCH.timeout);
delete TOUCH.timeout; TOUCH.last = 0;
event.preventDefault();
HTMLCSS.DblClick.call(this,event.touches[0]||event.touch);
}
},
//
// If the timeout passes without an end event, we issue
// the contextual menu event.
//
menu: function (math,event) {
delete TOUCH.timeout; TOUCH.last = 0;
HTMLCSS.ContextMenu.call(math,event.touches[0]||even.touch);
}
};
HTMLCSS.Augment({
config: {
@ -261,6 +312,7 @@
LEFTBUTTON: (HUB.Browser.isMSIE ? 1 : 0), // the event.button value for left button
MENUKEY: "altKey", // the event value for alternate context menu
Touch: TOUCH, // Touch event handling
Font: null, // created by Config() below
Config: function () {
@ -385,6 +437,10 @@
className:"MathJax", oncontextmenu:this.ContextMenu, onmousedown: this.Mousedown,
onmouseover:this.Mouseover, onclick:this.Click, ondblclick:this.DblClick
});
if (MathJax.Hub.Browser.noContextMenu) {
span.ontouchstart = this.Touch.start;
span.ontouchend = this.Touch.end;
}
var blockMode = (math.Get("display") === "block");
if (blockMode) {
div = frame = this.Element("div",{className:"MathJax_Display", style:{width:"100%", position:"relative"}});
@ -434,7 +490,6 @@
[this,arguments.callee,EVENT,force] // call this function again
);
}
if (!event) {event = window.event}
if (event.preventDefault) {event.preventDefault()}
if (event.stopPropagation) {event.stopPropagation()}
event.cancelBubble = true;
@ -2210,7 +2265,6 @@
Safari: function (browser) {
var v3p0 = browser.versionAtLeast("3.0");
var v3p1 = browser.versionAtLeast("3.1");
browser.isMobile = (navigator.appVersion.match(/Mobile/i) != null);
var android = (navigator.appVersion.match(/ Android (\d+)\.(\d+)/));
var forceImages = (v3p1 && browser.isMobile && (
(navigator.platform.match(/iPad|iPod|iPhone/) && !browser.versionAtLeast("5.0")) ||

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unpacked/jax/output/NativeMML/jax.js
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@ -215,7 +215,6 @@
[this,arguments.callee,EVENT,force] // call this function again
);
}
if (!event) {event = window.event}
if (event.preventDefault) {event.preventDefault()}
if (event.stopPropagation) {event.stopPropagation()}
event.cancelBubble = true;