/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */

/*************************************************************
 *
 *  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) 2010-2013 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(g,q,p,w,t){var u=MathJax.Callback.Signal("menu");MathJax.Extension.MathMenu={version:"2.2",signal:u};var k=function(a){return MathJax.Localization._.apply(MathJax.Localization,[["MathMenu",a]].concat([].slice.call(arguments,1)))},n=g.Browser.isPC,y=g.Browser.isMSIE,v=8<(document.documentMode||0),x=n?null:"5px",e=g.CombineConfig("MathMenu",{delay:150,closeImg:p.fileURL(t.imageDir+"/CloseX-31.png"),showRenderer:!0,showMathPlayer:!0,showFontMenu:!1,showContext:!1,showDiscoverable:!1,showLocale:!0,showLocaleURL:!1,windowSettings:{status:"no",toolbar:"no",locationbar:"no",menubar:"no",directories:"no",personalbar:"no",resizable:"yes",scrollbars:"yes",width:400,height:300,left:Math.round((screen.width-400)/2),top:Math.round((screen.height-300)/3)},styles:{"#MathJax_About":{position:"fixed",left:"50%",width:"auto","text-align":"center",border:"3px outset",padding:"1em 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g="left",k=f.offsetWidth,h=b.isMobile?30:k-2,r=0;f&&f!==d;)h+=f.offsetLeft,r+=f.offsetTop,f=f.parentNode;h+m.offsetWidth>document.body.offsetWidth-this.margin&&!b.isMobile&&(g="right",h=Math.max(this.margin,h-k-m.offsetWidth+6));n||(m.style["borderRadiusTop"+g]=0,m.style["WebkitBorderRadiusTop"+g]=0,m.style["MozBorderRadiusTop"+g]=0,m.style["KhtmlBorderRadiusTop"+g]=0)}else h+m.offsetWidth>document.body.offsetWidth-this.margin&&(h=document.body.offsetWidth-m.offsetWidth-this.margin),b.isMobile&&(h=Math.max(5,h-Math.floor(m.offsetWidth/2)),r-=20),b.skipUp=a.isContextMenu;m.style.left=h+"px";m.style.top=r+"px";document.selection&&document.selection.empty&&document.selection.empty();return l(a)},Remove:function(a,f){u.Post(["unpost",b.jax]);var d=document.getElementById("MathJax_MenuFrame");d&&(d.parentNode.removeChild(d),this.msieFixedPositionBug&&detachEvent("onresize",b.Resize));b.jax.hover&&(delete b.jax.hover.nofade,z.UnHover(b.jax));return l(a)},Find:function(a){return 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d=document.getElementById("MathJax_MenuFrame").childNodes,c=f.parentNode.childNodes,h=0,e=c.length;h<e;h++){var g=c[h].menuItem;g&&g.menu&&g.menu.posted&&g.Deactivate(c[h])}for(e=d.length-1;0<=e&&f.parentNode.menuItem!==d[e].menuItem;)d[e].menuItem.posted=!1,d[e].parentNode.removeChild(d[e]),e--;this.Timer&&!b.isMobile&&this.Timer(a,f)}},Mouseout:function(a,b){this.menu&&this.menu.posted||this.Deactivate(b);this.timer&&(clearTimeout(this.timer),delete this.timer)},Mouseup:function(a,b){return this.Remove(a,b)},Touchstart:function(a,b){return this.TouchEvent(a,b,"Mousedown")},Touchend:function(a,b){return this.TouchEvent(a,b,"Mouseup")},TouchEvent:function(a,f,d){this!==c.lastItem&&(c.lastMenu&&b.Event(a,c.lastMenu,"Mouseout"),b.Event(a,f,"Mouseover",!0),c.lastItem=this,c.lastMenu=f);if(this.nativeTouch)return null;b.Event(a,f,d);return!1},Remove:function(a,b){b=b.parentNode.menuItem;return b.Remove(a,b)},Activate:function(a){this.Deactivate(a);a.className+=" 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a=t["HTML-CSS"],c=t.NativeMML,d=t.SVG,e=(a||c||d||{config:{scale:100}}).config.scale,h=prompt(k("ScaleMath","Scale all mathematics (compared to surrounding text) by"),e+"%");h&&(h.match(/^\s*\d+(\.\d*)?\s*%?\s*$/)?(h=parseFloat(h))?h!==e&&(a&&(a.config.scale=h),c&&(c.config.scale=h),d&&(d.config.scale=h),b.cookie.scale=h,b.saveCookie(),g.Reprocess()):alert(k("NonZeroScale","The scale should not be zero")):alert(k("PercentScale","The scale should be a percentage (e.g., 120%%)")))};b.Zoom=function(){MathJax.Extension.MathZoom||p.Require("[MathJax]/extensions/MathZoom.js")};b.Renderer=function(){var a=g.outputJax["jax/mml"];if(a[0]!==e.settings.renderer){var c=g.Browser,d,m=b.Renderer.Messages,h;switch(e.settings.renderer){case "NativeMML":e.settings.warnedMML||(c.isChrome&&"24."!==c.version.substr(0,3)?d=m.MML.WebKit:c.isSafari&&!c.versionAtLeast("5.0")?d=m.MML.WebKit:c.isMSIE?c.hasMathPlayer||(d=m.MML.MSIE):d=m.MML[c],h="warnedMML");break;case 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poorly."],Safari:["SafariNativeMMLWarning","Your browser's native MathML does not implement all the features used by MathJax, so some expressions may not render properly."],Firefox:["FirefoxNativeMMLWarning","Your browser's native MathML does not implement all the features used by MathJax, so some expressions may not render properly."]},SVG:{MSIE:["MSIESVGWarning","SVG is not implemented in Internet Explorer prior to IE9 or when it is emulating IE8 or below. Switching to SVG output will cause the mathematics to not display properly."]}};b.Font=function(){t["HTML-CSS"]&&document.location.reload()};b.Locale=function(){MathJax.Localization.setLocale(e.settings.locale);MathJax.Hub.Queue(["Reprocess",MathJax.Hub])};b.LoadLocale=function(){var a=prompt(k("LoadURL","Load translation data from this URL:"));a&&(a.match(/\.js$/)||alert(k("BadURL","The URL should be for a javascript file that defines MathJax translation data.  Javascript file names should end with '.js'")),p.Require(a,function(b){b!=p.STATUS.OK&&alert(k("BadData","Failed to load translation data from %1",a))}))};b.MPEvents=function(a){var c=e.settings.discoverable,d=b.MPEvents.Messages;v?!c&&"Menu Events"===a.name[1]&&e.settings.mpContext&&alert(k.apply(k,d.IE9warning)):e.settings.mpMouse&&!confirm(k.apply(k,d.IE8warning))?(delete b.cookie.mpContext,delete e.settings.mpContext,delete b.cookie.mpMouse,delete e.settings.mpMouse,b.saveCookie()):(e.settings.mpContext=e.settings.mpMouse,b.cookie.mpContext=b.cookie.mpMouse=e.settings.mpMouse,b.saveCookie(),MathJax.Hub.Queue(["Rerender",MathJax.Hub]))};b.MPEvents.Messages={IE8warning:["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:["IE9warning","The MathJax contextual menu will be disabled, but you can Alt-Click on an expression to obtain the MathJax menu instead."]};g.Browser.Select({MSIE:function(a){var c="BackCompat"===document.compatMode;a=a.versionAtLeast("8.0")&&7<document.documentMode;b.Augment({margin:20,msieBackgroundBug:9>document.documentMode,msieFixedPositionBug:c||!a,msieAboutBug:c});v&&(delete e.styles["#MathJax_About"].filter,delete e.styles[".MathJax_Menu"].filter)},Firefox:function(a){b.skipMouseover=a.isMobile&&a.versionAtLeast("6.0");b.skipMousedown=a.isMobile}});b.isMobile=g.Browser.isMobile;b.noContextMenu=g.Browser.noContextMenu;b.CreateLocaleMenu=function(){if(b.menu){var a=b.menu.Find("Language").menu,e=a.items,d=[],g=MathJax.Localization.strings,h;for(h in g)g.hasOwnProperty(h)&&d.push(h);d=d.sort();a.items=[];h=0;for(var k=d.length;h<k;h++){var l=g[d[h]].menuTitle,l=l?l+(" ("+d[h]+")"):d[h];a.items.push(c.RADIO([d[h],l],"locale",{action:b.Locale}))}a.items.push(e[e.length-2],e[e.length-1])}};g.Register.StartupHook("End Config",function(){e.settings=g.config.menuSettings;"undefined"!==typeof e.settings.showRenderer&&(e.showRenderer=e.settings.showRenderer);"undefined"!==typeof e.settings.showFontMenu&&(e.showFontMenu=e.settings.showFontMenu);"undefined"!==typeof e.settings.showContext&&(e.showContext=e.settings.showContext);b.getCookie();b.menu=b(c.SUBMENU(["Show","Show Math As"],c.COMMAND(["MathMLcode","MathML Code"],b.ShowSource,{nativeTouch:!0,format:"MathML"}),c.COMMAND(["Original","Original Form"],b.ShowSource,{nativeTouch:!0}),c.RULE(),c.CHECKBOX(["texHints","Show TeX hints in MathML"],"texHints")),c.RULE(),c.SUBMENU(["Settings","Math Settings"],c.SUBMENU(["ZoomTrigger","Zoom Trigger"],c.RADIO(["Hover","Hover"],"zoom",{action:b.Zoom}),c.RADIO(["Click","Click"],"zoom",{action:b.Zoom}),c.RADIO(["DoubleClick","Double-Click"],"zoom",{action:b.Zoom}),c.RADIO(["NoZoom","No Zoom"],"zoom",{value:"None"}),c.RULE(),c.LABEL(["TriggerRequires","Trigger Requires:"]),c.CHECKBOX(g.Browser.isMac?["Option","Option"]:["Alt","Alt"],"ALT"),c.CHECKBOX(["Command","Command"],"CMD",{hidden:!g.Browser.isMac}),c.CHECKBOX(["Control","Control"],"CTRL",{hidden:g.Browser.isMac}),c.CHECKBOX(["Shift","Shift"],"Shift")),c.SUBMENU(["ZoomFactor","Zoom Factor"],c.RADIO("125%","zscale"),c.RADIO("133%","zscale"),c.RADIO("150%","zscale"),c.RADIO("175%","zscale"),c.RADIO("200%","zscale"),c.RADIO("250%","zscale"),c.RADIO("300%","zscale"),c.RADIO("400%","zscale")),c.RULE(),c.SUBMENU(["Renderer","Math Renderer"],{hidden:!e.showRenderer},c.RADIO("HTML-CSS","renderer",{action:b.Renderer}),c.RADIO("MathML","renderer",{action:b.Renderer,value:"NativeMML"}),c.RADIO("SVG","renderer",{action:b.Renderer})),c.SUBMENU("MathPlayer",{hidden:!g.Browser.isMSIE||!e.showMathPlayer,disabled:!g.Browser.hasMathPlayer},c.LABEL(["MPHandles","Let MathPlayer Handle:"]),c.CHECKBOX(["MenuEvents","Menu Events"],"mpContext",{action:b.MPEvents,hidden:!v}),c.CHECKBOX(["MouseEvents","Mouse Events"],"mpMouse",{action:b.MPEvents,hidden:!v}),c.CHECKBOX(["MenuAndMouse","Mouse and Menu Events"],"mpMouse",{action:b.MPEvents,hidden:v})),c.SUBMENU(["FontPrefs","Font Preference"],{hidden:!e.showFontMenu},c.LABEL(["ForHTMLCSS","For HTML-CSS:"]),c.RADIO(["Auto","Auto"],"font",{action:b.Font}),c.RULE(),c.RADIO(["TeXLocal","TeX (local)"],"font",{action:b.Font}),c.RADIO(["TeXWeb","TeX (web)"],"font",{action:b.Font}),c.RADIO(["TeXImage","TeX (image)"],"font",{action:b.Font}),c.RULE(),c.RADIO(["STIXlocal","STIX (local)"],"font",{action:b.Font})),c.SUBMENU(["ContextMenu","Contextual Menu"],{hidden:!e.showContext},c.RADIO("MathJax","context"),c.RADIO(["Browser","Browser"],"context")),c.COMMAND(["Scale","Scale All Math ..."],b.Scale),c.RULE().With({hidden:!e.showDiscoverable,name:["","discover_rule"]}),c.CHECKBOX(["Discoverable","Highlight on Hover"],"discoverable",{hidden:!e.showDiscoverable})),c.SUBMENU(["Locale","Language"],{hidden:!e.showLocale},c.RADIO("en","locale",{action:b.Locale}),c.RULE().With({hidden:!e.showLocaleURL,name:["","localURL_rule"]}),c.COMMAND(["LoadLocale","Load from URL ..."],b.LoadLocale,{hidden:!e.showLocaleURL})),c.RULE(),c.COMMAND(["About","About MathJax"],b.About),c.COMMAND(["Help","MathJax Help"],b.Help));if(b.isMobile){var a=e.settings,f=b.menu.Find("Math Settings","Zoom Trigger").menu;f.items[0].disabled=f.items[1].disabled=!0;if("Hover"===a.zoom||"Click"==a.zoom)a.zoom="None";f.items=f.items.slice(0,4);navigator.appVersion.match(/[ (]Android[) ]/)&&b.ITEM.SUBMENU.Augment({marker:"\u00bb"})}b.CreateLocaleMenu()});b.showRenderer=function(a){b.cookie.showRenderer=e.showRenderer=a;b.saveCookie();b.menu.Find("Math Settings","Math Renderer").hidden=!a};b.showMathPlayer=function(a){b.cookie.showMathPlayer=e.showMathPlayer=a;b.saveCookie();b.menu.Find("Math Settings","MathPlayer").hidden=!a};b.showFontMenu=function(a){b.cookie.showFontMenu=e.showFontMenu=a;b.saveCookie();b.menu.Find("Math Settings","Font Preference").hidden=!a};b.showContext=function(a){b.cookie.showContext=e.showContext=a;b.saveCookie();b.menu.Find("Math Settings","Contextual Menu").hidden=!a};b.showDiscoverable=function(a){b.cookie.showDiscoverable=e.showDiscoverable=a;b.saveCookie();b.menu.Find("Math Settings","Highlight on Hover").hidden=!a;b.menu.Find("Math Settings","discover_rule").hidden=!a};b.showLocale=function(a){b.cookie.showLocale=e.showLocale=a;b.saveCookie();b.menu.Find("Language").hidden=!a};MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function(){MathJax.OutputJax["HTML-CSS"].config.imageFont||(b.menu.Find("Math Settings","Font Preference","TeX (image)").disabled=!0)});w.Queue(g.Register.StartupHook("End Config",{}),["getImages",b],["Styles",p,e.styles],["Post",g.Startup.signal,"MathMenu Ready"],["loadComplete",p,"[MathJax]/extensions/MathMenu.js"])})(MathJax.Hub,MathJax.HTML,MathJax.Ajax,MathJax.CallBack,MathJax.OutputJax);