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Rules",this.radioGroup("speechRules",[["chromevox-default","Standard"],["chromevox-alternative","Alternative"]]))]),this.submenu("Highlight","Highlight",[this.submenu("Background","Background",this.radioGroup("backgroundColor",[["Blue"],["Red"],["Green"],["Yellow"],["Cyan"],["Magenta"],["White"],["Black"]])),{type:"slider",variable:"backgroundOpacity",content:" "},this.submenu("Foreground","Foreground",this.radioGroup("foregroundColor",[["Black"],["White"],["Magenta"],["Cyan"],["Yellow"],["Green"],["Red"],["Blue"]])),{type:"slider",variable:"foregroundOpacity",content:" "},this.rule(),this.radioGroup("highlight",[["None"],["Hover"],["Flame"]]),this.rule(),this.checkbox("TreeColoring","Tree Coloring","treeColoring")]),this.submenu("Magnification","Magnification",[this.radioGroup("magnification",[["None"],["Keyboard"],["Mouse"]]),this.rule(),this.radioGroup("magnify",[["200%"],["300%"],["400%"],["500%"]])]),this.submenu("Semantic Info","Semantic 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n=this.menu;this.about.attachMenu(n),this.help.attachMenu(n),this.originalText.attachMenu(n),this.annotationText.attachMenu(n),this.mathmlCode.attachMenu(n),this.zoomBox.attachMenu(n),this.checkLoadableItems(),this.enableExplorerItems(this.settings.explorer),n.showAnnotation=this.annotationText,n.copyAnnotation=this.copyAnnotation.bind(this),n.annotationTypes=this.options.annotationTypes,m.CssStyles.addInfoStyles(this.document.document),m.CssStyles.addMenuStyles(this.document.document)},t.prototype.checkLoadableItems=function(){var t,e;if(y&&y._&&y.loader&&y.startup)!this.settings.collapsible||y._.a11y&&y._.a11y.complexity||this.loadA11y("complexity"),!this.settings.explorer||y._.a11y&&y._.a11y.explorer||this.loadA11y("explorer"),!this.settings.assistiveMml||y._.a11y&&y._.a11y["assistive-mml"]||this.loadA11y("assistive-mml");else{var n=this.menu;try{for(var o=i(Object.keys(this.jax)),r=o.next();!r.done;r=o.next()){var 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t=(100*parseFloat(this.settings.scale)).toFixed(1).replace(/.0$/,""),e=prompt("Scale all mathematics (compared to surrounding text) by",t+"%");if(e)if(e.match(/^\s*\d+(\.\d*)?\s*%?\s*$/)){var n=parseFloat(e)/100;n?this.setScale(String(n)):alert("The scale should not be zero")}else alert("The scale should be a percentage (e.g., 120%)")},t.prototype.resetDefaults=function(){var e,n;t.loading++;var o=this.menu.pool,r=this.defaultSettings;try{for(var a=i(Object.keys(this.settings)),u=a.next();!u.done;u=a.next()){var l=u.value,c=o.lookup(l);if(c){c.setValue(r[l]);var p=c.items[0];p&&p.executeCallbacks_()}else this.settings[l]=r[l]}}catch(t){e={error:t}}finally{try{u&&!u.done&&(n=a.return)&&n.call(a)}finally{if(e)throw e.error}}t.loading--,this.rerender(s.STATE.COMPILED)},t.prototype.checkComponent=function(e){var n=t.loadingPromises.get(e);n&&r.mathjax.retryAfter(n)},t.prototype.loadComponent=function(e,n){if(!t.loadingPromises.has(e)){var o=y.loader;if(o){t.loading++;var i=o.load(e).then((function(){t.loading--,t.loadingPromises.delete(e),n(),0===t.loading&&t._loadingPromise&&(t._loadingPromise=null,t._loadingOK())})).catch((function(e){t._loadingPromise?(t._loadingPromise=null,t._loadingFailed(e)):console.log(e)}));t.loadingPromises.set(e,i)}}},t.prototype.loadA11y=function(e){var n=this,o=!s.STATE.ENRICHED;this.loadComponent("a11y/"+e,(function(){var i=y.startup;r.mathjax.handlers.unregister(i.handler),i.handler=i.getHandler(),r.mathjax.handlers.register(i.handler);var a=n.document;n.document=i.document=i.getDocument(),n.document.menu=n,n.document.outputJax.reset(),n.transferMathList(a),n.document.processed=a.processed,t._loadingPromise||(n.document.outputJax.reset(),n.rerender("complexity"===e||o?s.STATE.COMPILED:s.STATE.TYPESET))}))},t.prototype.transferMathList=function(t){var e,n,o=this.document.options.MathItem;try{for(var r=i(t.math),s=r.next();!s.done;s=r.next()){var a=s.value,u=new 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o,i=this&&this.__extends||(o=function(t,e){return(o=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])})(t,e)},function(t,e){function n(){this.constructor=t}o(t,e),t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)});Object.defineProperty(e,"__esModule",{value:!0}),e.AbstractEntry=void 0;var r=n(943),s=n(698),a=function(t){function e(e,n){var o=t.call(this)||this;return o._menu=e,o._type=n,o.className=s.HtmlClasses.MENUITEM,o.role="menuitem",o.hidden=!1,o}return i(e,t),Object.defineProperty(e.prototype,"menu",{get:function(){return this._menu},set:function(t){this._menu=t},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"type",{get:function(){return 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e=this.html;e.setAttribute("aria-disabled","false"),e.textContent=this.content},e.prototype.activate=function(){this.disabled||this.html.classList.add(u.HtmlClasses.MENUACTIVE)},e.prototype.deactivate=function(){this.html.classList.remove(u.HtmlClasses.MENUACTIVE)},e.prototype.focus=function(){this.menu.focused=this,t.prototype.focus.call(this),this.activate()},e.prototype.unfocus=function(){this.deactivate(),t.prototype.unfocus.call(this)},e.prototype.escape=function(t){a.MenuUtil.close(this)},e.prototype.up=function(t){this.menu.up(t)},e.prototype.down=function(t){this.menu.down(t)},e.prototype.left=function(t){this.menu.left(t)},e.prototype.right=function(t){this.menu.right(t)},e.prototype.space=function(t){this.press()},e.prototype.disable=function(){this.disabled=!0;var t=this.html;t.classList.add(u.HtmlClasses.MENUDISABLED),t.setAttribute("aria-disabled","true")},e.prototype.enable=function(){this.disabled=!1;var t=this.html;t.classList.remove(u.HtmlClasses.MENUDISABLED),t.removeAttribute("aria-disabled")},e.prototype.executeCallbacks_=function(){var t,e;try{for(var n=r(this.callbacks),o=n.next();!o.done;o=n.next()){var i=o.value;try{i(this)}catch(t){a.MenuUtil.error(t,"Callback for menu entry "+this.id+" failed.")}}}catch(e){t={error:e}}finally{try{o&&!o.done&&(e=n.return)&&e.call(n)}finally{if(t)throw t.error}}},e}(s.AbstractEntry);e.AbstractItem=l},585:function(t,e,n){var o,i=this&&this.__extends||(o=function(t,e){return(o=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])})(t,e)},function(t,e){function n(){this.constructor=t}o(t,e),t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)}),r=this&&this.__values||function(t){var e="function"==typeof Symbol&&Symbol.iterator,n=e&&t[e],o=0;if(n)return n.call(t);if(t&&"number"==typeof t.length)return{next:function(){return 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n.appendChild(s.html)}}catch(e){t={error:e}}finally{try{i&&!i.done&&(e=o.return)&&e.call(o)}finally{if(t)throw t.error}}},e.prototype.post=function(e,n){this.variablePool.update(),t.prototype.post.call(this,e,n)},e.prototype.unpostSubmenus=function(){var t,e,n=this.items.filter((function(t){return t instanceof l.Submenu}));try{for(var o=r(n),i=o.next();!i.done;i=o.next()){var s=i.value;s.submenu.unpost(),s!==this.focused&&s.unfocus()}}catch(e){t={error:e}}finally{try{i&&!i.done&&(e=o.return)&&e.call(o)}finally{if(t)throw t.error}}},e.prototype.unpost=function(){t.prototype.unpost.call(this),this.unpostSubmenus(),this.focused=null},e.prototype.find=function(t){var e,n;try{for(var o=r(this.items),i=o.next();!i.done;i=o.next()){var s=i.value;if("rule"!==s.type){if(s.id===t)return s;if("submenu"===s.type){var a=s.submenu.find(t);if(a)return a}}}}catch(t){e={error:t}}finally{try{i&&!i.done&&(n=o.return)&&n.call(o)}finally{if(e)throw e.error}}return 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this.stop(t)},t.prototype.mouseover=function(t){return this.stop(t)},t.prototype.mouseout=function(t){return this.stop(t)},t.prototype.click=function(t){return this.stop(t)},t.prototype.addEvents=function(t){t.addEventListener(i.MOUSE.DOWN,this.mousedown.bind(this)),t.addEventListener(i.MOUSE.UP,this.mouseup.bind(this)),t.addEventListener(i.MOUSE.OVER,this.mouseover.bind(this)),t.addEventListener(i.MOUSE.OUT,this.mouseout.bind(this)),t.addEventListener(i.MOUSE.CLICK,this.click.bind(this)),t.addEventListener("keydown",this.keydown.bind(this)),t.addEventListener("dragstart",this.stop.bind(this)),t.addEventListener(i.MOUSE.SELECTSTART,this.stop.bind(this)),t.addEventListener("contextmenu",this.stop.bind(this)),t.addEventListener(i.MOUSE.DBLCLICK,this.stop.bind(this))},t}();e.AbstractNavigatable=r},757:function(t,e,n){var o,i=this&&this.__extends||(o=function(t,e){return(o=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in 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o,i=this&&this.__extends||(o=function(t,e){return(o=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])})(t,e)},function(t,e){function n(){this.constructor=t}o(t,e),t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)});Object.defineProperty(e,"__esModule",{value:!0}),e.ContextMenu=void 0;var r=n(585),s=n(698),a=n(525),u=n(79),l=function(t){function e(e){var n=t.call(this)||this;return n.factory=e,n.id="",n.moving=!1,n._store=new a.MenuStore(n),n.widgets=[],n.variablePool=new u.VariablePool,n}return i(e,t),e.fromJson=function(t,e){var n=e.pool,o=e.items,i=e.id,r=void 0===i?"":i,s=new this(t);s.id=r;var a=t.get("variable");n.forEach((function(e){return a(t,e,s.pool)}));var u=t.get("items")(t,o,s);return 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e=this.store;this.moving||e.insertTaborder(),e.active.focus()}},e.prototype.left=function(t){this.move_(this.store.previous())},e.prototype.right=function(t){this.move_(this.store.next())},Object.defineProperty(e.prototype,"frame",{get:function(){return this._frame},enumerable:!1,configurable:!0}),Object.defineProperty(e.prototype,"store",{get:function(){return this._store},enumerable:!1,configurable:!0}),e.prototype.post=function(e,n){if(void 0!==n)return this.moving||this.store.removeTaborder(),void t.prototype.post.call(this,e,n);var o,i,r,s=e;if(s instanceof Event?(o=s.target,this.stop(s)):o=s,s instanceof MouseEvent&&(i=s.pageX,r=s.pageY,i||r||!s.clientX||(i=s.clientX+document.body.scrollLeft+document.documentElement.scrollLeft,r=s.clientY+document.body.scrollTop+document.documentElement.scrollTop)),!i&&!r&&o){var 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e=this.html;e.appendChild(this.generateTitle()),e.appendChild(this.contentDiv),e.appendChild(this.generateSignature()),e.appendChild(this.close.html),e.setAttribute("tabindex","0")},e.prototype.post=function(){t.prototype.post.call(this);var e=document.documentElement,n=this.html,o=window.innerHeight||e.clientHeight||e.scrollHeight||0,i=Math.floor(-n.offsetWidth/2),r=Math.floor((o-n.offsetHeight)/3);n.setAttribute("style","margin-left: "+i+"px; top: "+r+"px;"),window.event instanceof MouseEvent&&n.classList.add(s.HtmlClasses.MOUSEPOST),n.focus()},e.prototype.display=function(){this.menu.registerWidget(this),this.contentDiv.innerHTML=this.content();var t=this.menu.html;t.parentNode&&t.parentNode.removeChild(t),this.menu.frame.appendChild(this.html)},e.prototype.click=function(t){},e.prototype.keydown=function(e){this.bubbleKey(),t.prototype.keydown.call(this,e)},e.prototype.escape=function(t){this.unpost()},e.prototype.unpost=function(){t.prototype.unpost.call(this),this.html.classList.remove(s.HtmlClasses.MOUSEPOST),this.menu.unregisterWidget(this)},e.prototype.generateClose=function(){var t=new r.CloseButton(this),e=t.html;return e.classList.add(s.HtmlClasses.INFOCLOSE),e.setAttribute("aria-label","Close Dialog Box"),t},e.prototype.generateTitle=function(){var t=document.createElement("span");return t.innerHTML=this.title,t.classList.add(s.HtmlClasses.INFOTITLE),t},e.prototype.generateContent=function(){var t=document.createElement("div");return t.classList.add(s.HtmlClasses.INFOCONTENT),t.setAttribute("tabindex","0"),t},e.prototype.generateSignature=function(){var t=document.createElement("span");return t.innerHTML=this.signature,t.classList.add(s.HtmlClasses.INFOSIGNATURE),t},e.prototype.toJson=function(){return{type:""}},e}(n(757).AbstractPostable);e.Info=a},177:function(t,e,n){var o,i=this&&this.__extends||(o=function(t,e){return(o=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])})(t,e)},function(t,e){function n(){this.constructor=t}o(t,e),t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)});Object.defineProperty(e,"__esModule",{value:!0}),e.Checkbox=void 0;var r=n(467),s=n(865),a=n(698),u=function(t){function e(e,n,o,i){var r=t.call(this,e,"checkbox",n,i)||this;return r.role="menuitemcheckbox",r.variable=e.pool.lookup(o),r.register(),r}return i(e,t),e.fromJson=function(t,e,n){return new 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e)e.hasOwnProperty(n)&&(t[n]=e[n])})(t,e)},function(t,e){function n(){this.constructor=t}o(t,e),t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)}),r=this&&this.__read||function(t,e){var n="function"==typeof Symbol&&t[Symbol.iterator];if(!n)return t;var o,i,r=n.call(t),s=[];try{for(;(void 0===e||e-- >0)&&!(o=r.next()).done;)s.push(o.value)}catch(t){i={error:t}}finally{try{o&&!o.done&&(n=r.return)&&n.call(r)}finally{if(i)throw i.error}}return s};Object.defineProperty(e,"__esModule",{value:!0}),e.SelectionBox=e.SelectionMenu=void 0;var s=n(865),a=n(698),u=n(585),l=n(932),c=function(t){function e(e){var n=t.call(this)||this;return n.anchor=e,n.className=a.HtmlClasses.SELECTIONMENU,n.variablePool=n.anchor.menu.pool,n.baseMenu=n.anchor.menu,n}return i(e,t),e.fromJson=function(t,e,n){var o=e.title,i=e.values,r=e.variable,s=new this(n),a=t.get("label")(t,{content:o||"",id:o||"id"},s),u=t.get("rule")(t,{},s),l=i.map((function(e){return t.get("radio")(t,{content:e,variable:r,id:e},s)})),c=[a,u].concat(l);return s.items=c,s},e.prototype.generateHtml=function(){t.prototype.generateHtml.call(this),this.items.forEach((function(t){return t.html.classList.add(a.HtmlClasses.SELECTIONITEM)}))},e.prototype.display=function(){},e.prototype.right=function(t){this.anchor.right(t)},e.prototype.left=function(t){this.anchor.left(t)},e}(u.AbstractMenu);e.SelectionMenu=c;var p=function(t){function e(e,n,o,i){void 0===o&&(o="none"),void 0===i&&(i="vertical");var r=t.call(this,e,null,n)||this;return r.style=o,r.grid=i,r._selections=[],r.prefix="ctxt-selection",r._balanced=!0,r}return i(e,t),e.fromJson=function(t,e,n){var o=e.title,i=e.signature,r=e.selections,s=new this(o,i,e.order,e.grid);s.attachMenu(n);var a=r.map((function(e){return t.get("selectionMenu")(t,e,s)}));return s.selections=a,s},e.prototype.attachMenu=function(t){this.menu=t},Object.defineProperty(e.prototype,"selections",{get:function(){return this._selections},set:function(t){var e=this;this._selections=[],t.forEach((function(t){return e.addSelection(t)}))},enumerable:!1,configurable:!0}),e.prototype.addSelection=function(t){t.anchor=this,this._selections.push(t)},e.prototype.rowDiv=function(t){var e=this,n=document.createElement("div");this.contentDiv.appendChild(n);var o=t.map((function(t){return n.appendChild(t.html),t.html.id||(t.html.id=e.prefix+s.MenuUtil.counter()),t.html.getBoundingClientRect()})),i=o.map((function(t){return t.width})),r=i.reduce((function(t,e){return t+e}),0),u=o.reduce((function(t,e){return Math.max(t,e.height)}),0);return n.classList.add(a.HtmlClasses.SELECTIONDIVIDER),n.setAttribute("style","height: "+u+"px;"),[n,r,u,i]},e.prototype.display=function(){if(t.prototype.display.call(this),this.order(),this.selections.length){for(var e=[],n=0,o=[],i=this.getChunkSize(this.selections.length),s=function(t){var s=a.selections.slice(t,t+i),u=r(a.rowDiv(s),4),l=u[0],c=u[1],p=u[2],h=u[3];e.push(l),n=Math.max(n,c),s.forEach((function(t){return t.html.style.height=p+"px"})),o=a.combineColumn(o,h)},a=this,u=0;u<this.selections.length;u+=i)s(u);this._balanced&&(this.balanceColumn(e,o),n=o.reduce((function(t,e){return t+e}),20)),e.forEach((function(t){return t.style.width=n+"px"}))}},e.prototype.getChunkSize=function(t){switch(this.grid){case"square":return Math.floor(Math.sqrt(t));case"horizontal":return Math.floor(t/e.chunkSize);case"vertical":default:return e.chunkSize}},e.prototype.balanceColumn=function(t,e){t.forEach((function(t){for(var n=Array.from(t.children),o=0,i=void 0;i=n[o];o++)i.style.width=e[o]+"px"}))},e.prototype.combineColumn=function(t,e){for(var n=[],o=0;t[o]||e[o];){if(!t[o]){n=n.concat(e.slice(o));break}if(!e[o]){n=n.concat(t.slice(o));break}n.push(Math.max(t[o],e[o])),o++}return n},e.prototype.left=function(t){var e=this;this.move(t,(function(t){return(0===t?e.selections.length:t)-1}))},e.prototype.right=function(t){var e=this;this.move(t,(function(t){return t===e.selections.length-1?0:t+1}))},e.prototype.generateHtml=function(){t.prototype.generateHtml.call(this),this.html.classList.add(a.HtmlClasses.SELECTION)},e.prototype.generateContent=function(){var e=t.prototype.generateContent.call(this);return e.classList.add(a.HtmlClasses.SELECTIONBOX),e.removeAttribute("tabindex"),e},e.prototype.findSelection=function(t){var e=t.target,n=null;if(e.id&&(n=this.selections.find((function(t){return t.html.id===e.id}))),!n){var o=e.parentElement.id;n=this.selections.find((function(t){return t.html.id===o}))}return n},e.prototype.move=function(t,e){var n=this.findSelection(t);n.focused&&n.focused.unfocus();var o=e(this.selections.indexOf(n));this.selections[o].focus()},e.prototype.order=function(){this.selections.sort(e.orderMethod.get(this.style))},e.prototype.toJson=function(){return{type:""}},e.chunkSize=4,e.orderMethod=new Map([["alphabetical",function(t,e){return t.items[0].content.localeCompare(e.items[0].content)}],["none",function(t,e){return 1}],["decreasing",function(t,e){var n=t.items.length,o=e.items.length;return n<o?1:o<n?-1:0}],["increasing",function(t,e){var n=t.items.length,o=e.items.length;return n<o?-1:o<n?1:0}]]),e}(l.Info);e.SelectionBox=p},42:function(t,e,n){var o,i=this&&this.__extends||(o=function(t,e){return(o=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])})(t,e)},function(t,e){function n(){this.constructor=t}o(t,e),t.prototype=null===e?Object.create(e):(n.prototype=e.prototype,new n)});Object.defineProperty(e,"__esModule",{value:!0}),e.SubMenu=void 0;var r=function(t){function e(e){var n=t.call(this)||this;return n._anchor=e,n.variablePool=n.anchor.menu.pool,n.setBaseMenu(),n}return i(e,t),e.fromJson=function(t,e,n){var o=e.items,i=new this(n),r=t.get("items")(t,o,i);return i.items=r,i},Object.defineProperty(e.prototype,"anchor",{get:function(){return this._anchor},enumerable:!1,configurable:!0}),e.prototype.post=function(){if(this.anchor.menu.isPosted()){for(var e=this.anchor.html,n=this.html,o=this.baseMenu.frame,i=e.offsetWidth,r=i-2,s=0;e&&e!==o;)r+=e.offsetLeft,s+=e.offsetTop,e=e.parentNode;r+n.offsetWidth>document.body.offsetWidth-5&&(r=Math.max(5,r-i-n.offsetWidth+6)),t.prototype.post.call(this,r,s)}},e.prototype.display=function(){this.baseMenu.frame.appendChild(this.html)},e.prototype.setBaseMenu=function(){var t=this;do{t=t.anchor.menu}while(t instanceof e);this.baseMenu=t},e.prototype.left=function(t){this.focused=null,this.anchor.focus()},e.prototype.toJson=function(){return{type:""}},e}(n(585).AbstractMenu);e.SubMenu=r},842:function(t,e,n){Object.defineProperty(e,"__esModule",{value:!0}),e.Variable=void 0;var o=n(865),i=function(){function t(t,e,n){this._name=t,this.getter=e,this.setter=n,this.items=[]}return t.fromJson=function(t,e,n){var o=new this(e.name,e.getter,e.setter);n.insert(o)},Object.defineProperty(t.prototype,"name",{get:function(){return this._name},enumerable:!1,configurable:!0}),t.prototype.getValue=function(t){try{return this.getter(t)}catch(t){return o.MenuUtil.error(t,"Command of variable "+this.name+" failed."),null}},t.prototype.setValue=function(t,e){try{this.setter(t,e)}catch(t){o.MenuUtil.error(t,"Command of variable "+this.name+" failed.")}this.update()},t.prototype.register=function(t){-1===this.items.indexOf(t)&&this.items.push(t)},t.prototype.unregister=function(t){var e=this.items.indexOf(t);-1!==e&&this.items.splice(e,1)},t.prototype.update=function(){this.items.forEach((function(t){return t.update()}))},t.prototype.registerCallback=function(t){this.items.forEach((function(e){return e.registerCallback(t)}))},t.prototype.unregisterCallback=function(t){this.items.forEach((function(e){return e.unregisterCallback(t)}))},t.prototype.toJson=function(){return{type:"variable",name:this.name,getter:this.getter.toString(),setter:this.setter.toString()}},t}();e.Variable=i},79:function(t,e){Object.defineProperty(e,"__esModule",{value:!0}),e.VariablePool=void 0;var n=function(){function t(){this.pool={}}return t.prototype.insert=function(t){this.pool[t.name]=t},t.prototype.lookup=function(t){return this.pool[t]},t.prototype.remove=function(t){delete this.pool[t]},t.prototype.update=function(){for(var t in this.pool)this.pool[t].update()},t}();e.VariablePool=n}},a={};function u(t){var e=a[t];if(void 0!==e)return e.exports;var n=a[t]={exports:{}};return s[t].call(n.exports,n,n.exports,u),n.exports}t=u(723),e=u(21),n=u(62),o=u(3),i=u(232),r=u(309),(0,t.combineWithMathJax)({_:{ui:{menu:{MJContextMenu:e,Menu:n,MenuHandler:o,MmlVisitor:i,SelectableInfo:r}}}}),MathJax.startup&&"undefined"!=typeof window&&MathJax.startup.extendHandler((function(t){return(0,o.MenuHandler)(t)}),20)}();