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/*! For license information please see 420.e197c63136060d40.js.LICENSE.txt */
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this;s==t.length-2?(this.problem.textMoving=!0,this.problem.answerArea.appendChild(this.view)):(this.problem.textMoving=!0,this.problem.answerArea.insertBefore(this.view,t[s+2].view)),$(this.view).focus(),this.problem.state=void 0,this.problem.updateView()}}}selectLeft(){if(!this.inSourceArea()){var t=this.verticalOffset(),e=this.problem.enabledSourceBlocks();if(0==e.length)return this;for(var i=e[0],s=i.verticalOffset()-t,n=1;n<e.length;n++){var r=e[n],o=r.verticalOffset()-t;Math.abs(o)<Math.abs(s)&&(i=r,s=o)}this.problem.textFocus=i,i.makeTabIndex(),$(i.view).focus()}}selectUp(){for(var t,e=!1,i=(t=this.inSourceArea()?this.problem.enabledSourceBlocks():this.problem.enabledAnswerBlocks()).length-1;i>=0;i--){var s=t[i];if(e)return this.problem.textFocus=s,s.makeTabIndex(),$(s.view).focus(),this;s.view.id==this.view.id&&(e=!0)}}selectRight(){if(this.inSourceArea()){var t=this.verticalOffset(),e=this.problem.enabledAnswerBlocks();if(0==e.length)return this;for(var i=e[0],s=i.verticalOffset()-t,n=1;n<e.length;n++){var r=e[n],o=r.verticalOffset()-t;Math.abs(o)<Math.abs(s)&&(i=r,s=o)}this.problem.textFocus=i,i.makeTabIndex(),$(i.view).focus()}}selectDown(){var t,e=!1;t=this.inSourceArea()?this.problem.enabledSourceBlocks():this.problem.enabledAnswerBlocks();for(var i=0;i<t.length;i++){var s=t[i];if(e)return this.problem.textFocus=s,s.makeTabIndex(),$(s.view).focus(),this;s.view.id==this.view.id&&(e=!0)}}toggleMove(){this.problem.textMove?($(this.view).removeClass("up"),$(this.view).addClass("down"),this.problem.textMove=!1,this.problem.logMove("kmove"),this.isPlaceholder||this.problem.updatePlaceholders()):($(this.view).removeClass("down"),$(this.view).addClass("up"),this.problem.textMove=!0)}hash(){for(var t="",e=0;e<this.lines.length;e++)t+=this.lines[e].index+"_";return t+this.indent}solutionIndent(){for(var t=this.lines[0].indent,e=1;e<this.lines.length;e++)t=Math.min(t,this.lines[e].indent);return t}}class w extends b{constructor(t,e,i,s){super(t,e),this.placeholderLines=e,this.afterSettledBlockCount=s,$(this.view).addClass("placeholder-block"),$(this.view).addClass("disabled"),this.placeholderSize=i;var n=document.createElement("div");$(n).addClass("placeholder-text"),n.innerText=i>1?`${i} blocks are missing here`:`${i} block is missing here`,$(this.view).append(n),this.isPlaceholder=!0}}class k extends g{constructor(t){super(t,"placeholder",!1),this.isPlaceholderLine=!0}}class y extends b{constructor(t,e){super(t,e),this.isSettled=!0,$(this.view).addClass("settled-block"),$(this.view).addClass("disabled");let i=document.createElement("span");i.classList.add("settled-tooltip"),$(this.view).append(i),$(this.view).find(".settled-tooltip").text("OK")}setBlocksBefore(t){this.blocksBefore=t;var e=t>1?"s":"";if(this.blocksAfter){var i=this.blocksAfter>1?"s":"";$(this.view).find(".settled-tooltip").html(`${t} block${e} ⬆️️), ${this.blocksAfter} block${i} ⬇️`)}else 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s=$(this.origElem).html();this.blockIndex=0,this.checkCount=0,this.numDistinct=0,this.hasSolved=!1,this.initializeLines(s.trim()),this.initializeView(),this.caption="Parsons",this.addCaption("runestone"),this.checkServer("parsons",!0),this.runnableDiv=null}initializeOptions(){var t={pixelsPerIndent:30},e=$(this.origElem).data("maxdist"),i=$(this.origElem).data("order"),s=$(this.origElem).data("noindent"),n=$(this.origElem).data("adaptive"),r=$(this.origElem).data("numbered"),o=$(this.origElem).data("grader"),a=$(this.origElem).data("scaffolding");if(t.numbered=r,t.grader=o,t.scaffolding=a,void 0!==e&&(t.maxdist=e),void 0!==i){i=i.match(/\d+/g);for(var l=0;l<i.length;l++)i[l]=parseInt(i[l]);t.order=i}null==s&&(s=!1),t.noindent=s,this.noindent=s,null==n?n=!1:n&&this.initializeAdaptive(),t.adaptive=n;var h=eBookConfig.locale;null==h&&(h="en"),t.locale=h;var c=$(this.origElem).data("language");null==c&&null==(c=eBookConfig.language)&&(c="python"),t.language=c;var d={python:"prettyprint 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t=this.containerDiv.querySelector(".parsons-text");t&&!t.classList.contains("exercise-statement")&&t.classList.add("exercise-statement"),this.keyboardTip=document.createElement("div"),$(this.keyboardTip).attr("role","tooltip"),this.keyboardTip.id=this.counterId+"-tip",this.keyboardTip.innerHTML=$.i18n("msg_parson_arrow_navigate"),this.outerDiv.appendChild(this.keyboardTip),$(this.keyboardTip).hide(),this.sortContainerDiv=document.createElement("div"),$(this.sortContainerDiv).addClass("sortable-code-container"),$(this.sortContainerDiv).attr("aria-describedby",this.counterId+"-tip"),this.outerDiv.appendChild(this.sortContainerDiv),this.sourceRegionDiv=document.createElement("div"),this.sourceRegionDiv.id=this.counterId+"-sourceRegion",$(this.sourceRegionDiv).addClass("sortable-code"),this.sourceLabel=document.createElement("div"),$(this.sourceLabel).attr("role","tooltip"),this.sourceLabel.id=this.counterId+"-sourceTip",this.sourceLabel.innerHTML=$.i18n("msg_parson_drag_from_here"),this.sourceRegionDiv.appendChild(this.sourceLabel),this.sortContainerDiv.appendChild(this.sourceRegionDiv),this.sourceArea=document.createElement("div"),this.sourceArea.id=this.counterId+"-source",$(this.sourceArea).addClass("source"),$(this.sourceArea).attr("aria-describedby",this.counterId+"-sourceTip"),this.sourceRegionDiv.appendChild(this.sourceArea),this.answerRegionDiv=document.createElement("div"),this.answerRegionDiv.id=this.counterId+"-answerRegion",$(this.answerRegionDiv).addClass("sortable-code"),this.answerLabel=document.createElement("div"),$(this.answerLabel).attr("role","tooltip"),this.answerLabel.id=this.counterId+"-answerTip",this.answerLabel.innerHTML=$.i18n("msg_parson_drag_to_here"),this.answerRegionDiv.appendChild(this.answerLabel),this.sortContainerDiv.appendChild(this.answerRegionDiv),this.answerArea=document.createElement("div"),this.answerArea.id=this.counterId+"-answer",$(this.answerArea).attr("aria-describedby",this.counterId+"-answerTip"),this.answerRegionDiv.appendChild(this.answerArea),this.parsonsControlDiv=document.createElement("div"),$(this.parsonsControlDiv).addClass("parsons-controls"),this.outerDiv.appendChild(this.parsonsControlDiv);var e=this;this.checkButton=document.createElement("button"),$(this.checkButton).attr("class","btn btn-success"),this.checkButton.textContent=$.i18n("msg_parson_check_me"),this.checkButton.id=this.counterId+"-check",this.parsonsControlDiv.appendChild(this.checkButton),this.checkButton.type="button",this.checkButton.addEventListener("click",(function(t){t.preventDefault(),e.checkCurrentAnswer(),e.logCurrentAnswer(),e.renderFeedback()})),this.resetButton=document.createElement("button"),$(this.resetButton).attr("class","btn btn-default"),this.resetButton.textContent=$.i18n("msg_parson_reset"),this.resetButton.id=this.counterId+"-reset",this.resetButton.type="button",this.parsonsControlDiv.appendChild(this.resetButton),this.resetButton.addEventListener("click",(function(t){t.preventDefault(),e.clearFeedback(),$(e.checkButton).prop("disabled",!1),e.resetView(),e.checkCount=0,e.logMove("reset"),e.setLocalStorage()})),this.options.adaptive&&(this.helpButton=document.createElement("button"),$(this.helpButton).attr("class","btn btn-primary"),this.helpButton.textContent=$.i18n("msg_parson_help"),this.helpButton.id=this.counterId+"-help",this.helpButton.disabled=!1,this.parsonsControlDiv.appendChild(this.helpButton),this.helpButton.addEventListener("click",(function(t){t.preventDefault(),e.helpMe()}))),this.messageDiv=document.createElement("div"),this.messageDiv.id=this.counterId+"-message",this.messageDiv.setAttribute("aria-live","polite"),this.messageDiv.setAttribute("role","status"),this.parsonsControlDiv.appendChild(this.messageDiv),this.messageDiv.style.visibility="hidden",$(this.origElem).replaceWith(this.outerDiv),$(this.outerDiv).closest(".sqcontainer").css("max-width","none"),this.outerDiv&&($(this.question).html().match(/^\s+$/)?$(this.question).remove():$(this.outerDiv).prepend(this.question))}initializeLines(t){this.lines=[];var e=t.split("---");1===e.length&&(e=t.split("\n"));var i=[],s=[];if(!0===this.options.scaffolding){for(var n=!1,r=0;r<e.length;r++){var o=e[r],a={},l="",h=[];if(o.includes("#paired:"))b=o.indexOf("#paired:"),l=o.substring(b+8,o.length).trim(),o=o.substring(0,b+7);else if(o.includes("#distractor:"))b=o.indexOf("#distractor:"),l=o.substring(b+12,o.length).trim(),o=o.substring(0,b+11);else if(o.includes("#settled")){var c=o.indexOf("#settled");l=o.substring(c+8,o.length).trim(),o=o.substring(0,c+8)}else if(o.includes("#tag:")){w=(o=o.replace(/#tag:.*;.*;/,(t=>t.replace(/\s+/g,"")))).indexOf("#tag:"),""==(y=o.substring(w+5,o.indexOf(";",w+5)))&&(y="block-"+r),x=o.indexOf(";depends:");let t=o.substring(x+9,o.indexOf(";",x+9));h=t.length>0?t.split(","):[]}if(o.includes('class="displaymath')?a.displaymath=!0:a.displaymath=!1,o=o.replace(/#(paired|distractor|settled|tag:.*;.*;)/,(function(t,e){return a[e]=!0,""})),a.settled&&r>0&&u.length>0&&!u[u.length-1].isSettled){var d=new k(this);u.push(d),d.distractor=!0,d.paired=!1,d.distractHelptext="",d.groupWithNext=!1,d.indent=0}a.settled&&(n=!0);var u=[];if(a.displaymath)p=[o];else var p=o.split("\n");for(var v=0;v<p.length;v++){var f=p[v];if(!/^\s*$/.test(f)){var m=new g(this,f,a.displaymath);u.push(m),a.paired?(m.distractor=!0,m.paired=!0,m.distractHelptext=l):a.distractor?(m.distractor=!0,m.paired=!1,m.distractHelptext=l):a.settled?(m.distractor=!1,m.paired=!1,m.isSettled=!0,i.push(m)):(m.distractor=!1,m.paired=!1,"dag"===this.options.grader&&(m.tag=y,m.depends=h),i.push(m)),-1==$.inArray(m.indent,s)&&s.push(m.indent)}}if(u.length>0){for(v=0;v<u.length-1;v++)u[v].groupWithNext=!0;u[u.length-1].groupWithNext=!1}}if(n&&!u[u.length-1].isSettled&&(d=new k(this),u.push(d),d.distractor=!0,d.paired=!1,d.distractHelptext="",d.groupWithNext=!1),"java"===this.options.language){let t=null,e=null;for(let i=0;i<this.lines.length;i++){const s=this.lines[i].text;if(null===t&&(s.includes("public class")||s.startsWith("import"))&&(t=this.lines[i].indent),null===e&&s.includes("public static")&&(e=this.lines[i].indent),null!==t&&null!==e)break}if(0===t&&8===e){s=s.sort((function(t,e){return t-e}));for(let t=0;t<this.lines.length;t++){let e=this.lines[t],i=e.indent,n=s.indexOf(i);n>0&&(n-=1),e.indent=n}}else{s=s.sort((function(t,e){return t-e}));for(let t=0;t<this.lines.length;t++){let e=this.lines[t];e.indent=s.indexOf(e.indent)}}}else{s=s.sort((function(t,e){return t-e}));for(let t=0;t<this.lines.length;t++){let e=this.lines[t];e.indent=s.indexOf(e.indent)}}this.solution=i}else{for(r=0;r<e.length;r++){var b,w,y,x;if(o=e[r],a={},l="",h=[],o.includes("#paired:"))b=o.indexOf("#paired:"),l=o.substring(b+8,o.length).trim(),o=o.substring(0,b+7);else if(o.includes("#distractor:"))b=o.indexOf("#distractor:"),l=o.substring(b+12,o.length).trim(),o=o.substring(0,b+11);else if(o.includes("#tag:")){w=(o=o.replace(/#tag:.*;.*;/,(t=>t.replace(/\s+/g,"")))).indexOf("#tag:"),""==(y=o.substring(w+5,o.indexOf(";",w+5)))&&(y="block-"+r),x=o.indexOf(";depends:");let t=o.substring(x+9,o.indexOf(";",x+9));h=t.length>0?t.split(","):[]}if(o.includes('class="displaymath')?a.displaymath=!0:a.displaymath=!1,o=o.replace(/\s*#(paired|distractor|tag:.*;.*;)\s*/g,(function(t,e){return a[e]=!0,""})),u=[],a.displaymath)p=[o];else p=o.split("\n");for(v=0;v<p.length;v++)f=p[v],(!/^\s*$/.test(f)||0!=v&&v!=p.length-1)&&(m=new g(this,f,a.displaymath),u.push(m),a.paired?(m.distractor=!0,m.paired=!0,m.distractHelptext=l):a.distractor?(m.distractor=!0,m.paired=!1,m.distractHelptext=l):(m.distractor=!1,m.paired=!1,"dag"===this.options.grader&&(m.tag=y,m.depends=h),i.push(m)),-1==$.inArray(m.indent,s)&&s.push(m.indent));if(u.length>0){for(v=0;v<u.length-1;v++)u[v].groupWithNext=!0;u[u.length-1].groupWithNext=!1}}for(s=s.sort((function(t,e){return t-e})),r=0;r<this.lines.length;r++)(m=this.lines[r]).indent=s.indexOf(m.indent);this.solution=i}}async initializeAreas(t,e,i){var s,n,r=[];for(s=0;s<t.length;s++)n=t[s],r.push(n),this.sourceArea.appendChild(n.view);for(s=0;s<e.length;s++)n=e[s],r.push(n),this.answerArea.appendChild(n.view);this.blocks=r;var o=i.disabled;if(void 0!==o)for(s=0;s<r.length;s++)n=r[s],o.includes(n.lines[0].index)&&$(n.view).addClass("disabled");var a=0;this.noindent||(a="natural"==this.options.language?this.solutionIndent():Math.max(0,this.solutionIndent())),this.indent=a;var l,h=null==this.outerDiv.offsetParent;h&&((l=document.createElement("div")).classList.add("runestone-sphinx"),$(this.outerDiv).replaceWith(l),$(this.outerDiv).addClass("runestone-sphinx"),document.body.appendChild(this.outerDiv)),""!==this.options.prettifyLanguage&&"undefined"==typeof Prism&&prettyPrint();const c=this.options.language;if(c&&"undefined"!=typeof Prism){const t=this.containerDiv.querySelectorAll("code");for(const e of t)e.classList.add(`language-${c}`);Prism.highlightAllUnder(this.containerDiv)}for(let t=0;t<this.lines.length;t++)this.lines[t].initializeWidth();let d=(this.outerDiv.offsetWidth-this.options.pixelsPerIndent*this.indent-80)/2;var u,p,v;null!=this.options.numbered&&(d-=25),this.sourceArea.style.width=d+"px",p=20;var g=0;null!=this.options.numbered&&(g=1),u=0;let f=this;for(v=async function(t){"natural"!=this.options.language&&"math"!=this.options.language||("undefined"!=typeof runestoneMathReady?await runestoneMathReady.then((async()=>await f.queueMathJax(t[0]))):void 0!==MathJax.startup&&await f.queueMathJax(t[0])),u=Math.max(u,t.outerWidth(!0)),t.width(u-22);var e=3.8;let i=t.outerHeight(!0);38!=i&&(e=3.1*(i-38)/21),p+=i+g*e}.bind(this),s=0;s<r.length;s++)await v($(r[s].view));this.isTimed&&p<38*r.length&&(p=50*r.length),this.areaWidth=u,null!=this.options.numbered&&(this.areaWidth+=25),a>0&&a<=4?$(this.answerArea).addClass("answer"+a):$(this.answerArea).addClass("answer");var m=[],b=[];for(s=0;s<this.lines.length;s++){var w=this.lines[s];null==w.block()?b.length>0&&(m.push(b),b=[]):(b.push(w),w.groupWithNext||(m.push(b),b=[]))}var k,y=[],x=[],_=[];if(this.pairDistractors||!this.options.adaptive){for(s=m.length-1;s>-1;s--)if((b=m[s])[0].paired)for(k=b.length-1;k>-1;k--)x.unshift(b[k].index);else if(x.length>0){for(k=b.length-1;k>-1;k--)x.unshift(b[k].index);y.unshift(x),x=[]}for(s=0;s<y.length;s++){var C=document.createElement("div");$(C).addClass("paired"),$(C).html("<span id= 'st' style = 'vertical-align: middle; font-weight: bold'>or{</span>"),_.push(C),this.sourceArea.appendChild(C)}}else y=[];p+=10*y.length,this.areaHeight=p+40,$(this.sourceArea).css({width:this.areaWidth+2,height:p}),$(this.answerArea).css({width:this.options.pixelsPerIndent*a+this.areaWidth+2,height:p}),this.pairedBins=y,this.pairedDivs=_,null!=this.options.numbered&&this.addBlockLabels(t.concat(e)),this.state=void 0,this.updateView(),h&&$(l).replaceWith(this.outerDiv)}initializeInteractivity(){for(var t=0;t<this.blocks.length;t++)this.blocks[t].initializeInteractivity();this.initializeTabIndex();"natural"!=this.options.language&&"math"!=this.options.language||void 0!==MathJax.startup&&this.queueMathJax(this.outerDiv)}initializeTabIndex(){for(var t=0;t<this.blocks.length;t++){var e=this.blocks[t];if(e.enabled())return e.makeTabIndex(),this}}newerData(t,e){var i=t.timestamp,s=e.timestamp;return null==i?e:null==s||(i=this.dateFromTimestamp(i))>(s=this.dateFromTimestamp(s))?t:e}async loadData(t){try{if(!0===this.options.scaffolding){null==(i=t.source)&&(i=t.trash);var e=t.answer;void 0!==(n=null==(s=t.adaptive)?{}:this.optionsFromHash(s)).noindent&&(this.noindent=!0),void 0!==n.checkCount&&(this.checkCount=n.checkCount),void 0!==n.hasSolved&&(this.hasSolved=n.hasSolved),await this.initializeAreas(this.blocksFromSource(),this.settledBlocksFromSource(),n)}else{var i,s,n;null==(i=t.source)&&(i=t.trash),e=t.answer,void 0!==(n=null==(s=t.adaptive)?{}:this.optionsFromHash(s)).noindent&&(this.noindent=!0),void 0!==n.checkCount&&(this.checkCount=n.checkCount),void 0!==n.hasSolved&&(this.hasSolved=n.hasSolved),null==i||null==e||1==e.length?await this.initializeAreas(this.blocksFromSource(),[],n):(this.initializeAreas(this.blocksFromHash(i),this.blocksFromHash(e),n),this.grade=this.grader.grade(),"correct"==this.grade?this.correct=!0:0==this.answerLines().length?this.correct=null:this.correct=!1)}}catch(e){await this.initializeAreas(this.blocksFromSource(),[],n),console.log(`Error restoring answer for student ${t.sid} in ${t.div_id}. Defaulting to original state.`)}!0!==this.needsReinitialization&&(this.initializeInteractivity(),this.isTimed&&!this.assessmentTaken&&this.resetView())}localData(){var t=localStorage.getItem(this.storageId);return null!==t&&"{"==t.charAt(0)?JSON.parse(t):{}}restoreAnswers(t){this.loadData(t)}checkLocalStorage(){if(this.graderactive)return;const t=this.localData();t.timestamp&&t.timestamp<eBookConfig.termStartDate&&(localStorage.removeItem(this.storageId),t={}),this.loadData(t)}setLocalStorage(t){var e;if(null==t){e={source:this.sourceHash(),answer:this.answerHash(),timestamp:new Date};var i=this.adaptiveHash();i.length>0&&(e.adaptive=i)}else e=t;localStorage.setItem(this.storageId,JSON.stringify(e))}async updatePlaceholders(){setTimeout((()=>{var t,e,i,s=this.answerBlocks();for(t=0;t<s.length;++t)if(s[t].isPlaceholder&&(i=s[t],e=!1,t>0&&!s[t-1].isSettled&&!s[t-1].isPlaceholder&&(e=!0),t<s.length-1&&!s[t+1].isSettled&&!s[t+1].isPlaceholder&&(e=!0),e&&!$(i.view).hasClass("hide"))){$(i.view).addClass("hide");for(var n=0;n<s.length-1-t;n++)i.moveDown()}}),5),setTimeout((()=>{for(var t=this.answerBlocks(),e=0;e<t.length&&!$(t[e].view).hasClass("hide");)e++;var i=!0;this.firstBlockSettled&&(i=!1);var s,n,r=0;for(s=0;s<e&&(!t[s].isSettled||!i);++s)t[s].isSettled?(i=!0,r++):i=!1;if(s<e||t[e-1]&&t[e-1].isSettled&&!this.lastBlockSettled){var o;for(o=t.length-1;o>=e;o--)if(t[o].afterSettledBlockCount==r){n=t[o];break}if(t[o].afterSettledBlockCount!=r)return void console.log("error moving up; no placeholder found");if($(n.view).hasClass("hide")){$(n.view).removeClass("hide");for(var a=0;a<o-s;a++)n.moveUp()}}}),10)}logMove(t){var e={event:"parsonsMove",div_id:this.divid,storageid:super.localStorageKey()},i=t+"|"+this.sourceHash()+"|"+this.answerHash(),s=this.adaptiveHash();""!==s&&(i=i+"|"+s),e.act=i,this.logBookEvent(e)}async logCurrentAnswer(t){var e={event:"parsons",div_id:this.divid},i=this.answerHash();e.answer=i;var s=this.sourceHash();e.source=s;var n=s+"|"+i,r=this.adaptiveHash();""!==r&&(e.adaptive=r,n=n+"|"+r),"correct"==this.grade?(n="correct|"+n,e.correct="T"):(n="incorrect|"+n,e.correct="F"),e.act=n,void 0!==t&&(e.sid=t),await this.logBookEvent(e)}adaptiveHash(){if(!this.options.adaptive)return"";for(var t=[],e=0;e<this.blocks.length;e++){var i=this.blocks[e];i.enabled()||t.push("d"+i.lines[0].index)}return this.noindent!==this.options.noindent&&t.push("i"),t.push("c"+this.checkCount),this.hasSolved&&t.push("s"),t.join("-")}optionsFromHash(t){var e;e="-"===t||""===t||null===t?[]:t.split("-");for(var i={},s=[],n=0;n<e.length;n++){var r=e[n];"i"==r[0]?i.noindent=!0:"d"==r[0]?s.push(parseInt(r.slice(1))):"s"==r[0]?i.hasSolved=!0:"c"==r[0]&&(i.checkCount=parseInt(r.slice(1)))}return s.length>0&&(i.disabled=s),i}answerHash(){for(var t=[],e=this.answerBlocks(),i=0;i<e.length;i++)t.push(e[i].hash());return 0===t.length?"-":t.join("-")}sourceHash(){for(var t=[],e=this.sourceBlocks(),i=0;i<e.length;i++)t.push(e[i].hash());return 0===t.length?"-":t.join("-")}adaptBlocks(t){for(var e,i=[],s=[],n=0;n<t.length;n++)(e=t[n]).isDistractor()?s.push(e):i.push(e);this.recentAttempts=localStorage.getItem(this.adaptiveId+"recentAttempts"),null!=this.recentAttempts&&"NaN"!=this.recentAttempts||(this.recentAttempts=3);var r=this.recentAttempts,o=i.length,a=0,l=s.length,h=0;this.pairDistractors=!0,r<2?(this.pairDistractors=!1,this.limitDistractors=!1):r<4||r<6?this.pairDistractors=!0:r<8?(h=.5*l,this.pairDistractors=!0):(h=l,this.pairDistractors=!0),a=Math.min(a,o-3),s=(s=this.shuffled(s)).slice(0,h);var c=[];for(n=0;n<t.length;n++)(e=t[n]).isDistractor()?-1==$.inArray(e,s)&&c.push(e):c.push(e);var d=[];for(n=0;n<this.lines.length;n++)for(var u=0;u<c.length;u++)c[u].lines[0].index==n&&d.push(c[u]);for(let t=0;t<a;t++){var p=-10,v=-10;for(u=0;u<d.length-1;u++){e=d[u];var g=d[u+1],f=10-e.lines.length-g.lines.length,m=e.minimumLineIndent(),b=g.minimumLineIndent();m==b?f+=2:m>b&&(f-=1),e.lines[e.lines.length-1].indent==g.lines[0].indent&&(f+=1),f>=p&&(p=f,v=u)}for(e=d[v],g=d[v+1],u=0;u<g.lines.length;u++)e.addLine(g.lines[u]);var w=[];for(u=0;u<d.length;u++)u!==v+1&&w.push(d[u]);d=w}var k=[];for(n=0;n<c.length;n++)for(u=0;u<d.length;u++)c[n].lines[0].index==d[u].lines[0].index&&k.push(d[u]);return k}blocksFromSource(){var t,e,i,s,n=[],r=[],o=[];for(s=0;s<this.lines.length;s++)(i=this.lines[s]).isPlaceholderLine||i.isSettled||(o.push(i),i.groupWithNext||(n.push(new b(this,o)),o=[]));t=n;var a=[];if(void 0!==this.options.maxdist){var l=this.options.maxdist,h=[];for(s=0;s<n.length;s++)(e=n[s]).lines[0].distractor&&h.push(e);if(l<h.length){for(h=(h=this.shuffled(h)).slice(0,l),s=0;s<n.length;s++)(e=n[s]).lines[0].distractor?$.inArray(e,h)>-1?r.push(e):a.push(s):r.push(e);n=r,r=[]}}if(this.recentAttempts<2?this.pairDistractors=!1:this.pairDistractors=!0,void 0===this.options.order){var c=[],d=[];for(s=0;s<n.length;s++)(e=n[s]).lines[0].paired&&this.pairDistractors?d.push(e):((d=[]).push(e),c.push(d));for(c=this.shuffled(c),s=0;s<c.length;s++)if((d=c[s]).length>1)for(d=this.shuffled(d),p=0;p<d.length;p++)r.push(d[p]);else r.push(d[0])}else for(s=0;s<this.options.order.length;s++)void 0!==(e=t[this.options.order[s]])&&$.inArray(this.options.order[s],a)<0&&r.push(e);if(this.pairDistractors=!0,this.options.adaptive&&(this.limitDistractors=!0,r=this.adaptBlocks(r),!this.limitDistractors))for(s=0;s<a.length;s++){var u=null==this.options.order?Math.random(0,r.length):$.inArray(a[s],this.options.order);r.splice(u,0,t[a[s]])}if(this.pairDistractors&&null!=this.options.order)for(s=1;s<t.length;s++)if(t[s].lines[0].paired&&$.inArray(t[s],r)>=0){for(var p=s;$.inArray(t[p-1],r)<0;)p--;var v=$.inArray(t[p-1],r),g=$.inArray(t[s],r);r.splice(g,1),r.splice(v,0,t[s])}return r}blockFromHash(t){for(var e=t.split("_"),i=[],s=0;s<e.length-1;s++)i.push(this.lines[e[s]]);var n=new b(this,i);return this.noindent?n.indent=0:n.indent=Number(e[e.length-1]),n}blocksFromHash(t){var e;e="-"===t||""===t||null===t?[]:t.split("-");for(var i=[],s=0;s<e.length;s++)i.push(this.blockFromHash(e[s]));return this.options.adaptive?this.adaptBlocks(i):i}settledBlocksFromSource(){var t,e,i=[],s=[],n=0,r=0,o=void 0,a=0;for(e=0;e<this.lines.length;e++)if(t=this.lines[e],s.push(t),!t.groupWithNext)if(t.isPlaceholderLine)i.push(new w(this,s,n,r)),o&&o.setBlocksAfter(n),a=n,n=0,s=[];else 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t=[],e=this.answerArea.childNodes,i=0;i<e.length;i++){var s=this.getBlockById(e[i].id);void 0!==s&&t.push(s)}return t}enabledAnswerBlocks(){for(var t=this.answerBlocks(),e=[],i=0;i<t.length;i++){var s=t[i];s.enabled()&&e.push(s)}return e}answerLines(){for(var t=[],e=this.answerBlocks(),i=0;i<e.length;i++){var s=e[i];if(!s.isPlaceholder)for(var n=0;n<s.lines.length;n++)t.push(s.lines[n])}return t}getBlockFor(t){for(var e=t;!e.classList.contains("block");)e=e.parentElement;return e}solutionIndent(){for(var t=0,e=0;e<this.blocks.length;e++){var i=this.blocks[e];t=Math.max(t,i.solutionIndent())}return t}checkCurrentAnswer(){if(!this.hasSolved){if(this.checkCount++,this.clearFeedback(),null==this.adaptiveId&&(this.adaptiveId=this.storageId),this.grader.showfeedback=!1,this.grade=this.grader.grade(),"correct"==this.grade){if(this.hasSolved=!0,this.correct=!0,$(this.checkButton).prop("disabled",!0),this.hasSolved&&this.options.scaffolding){const t=document.querySelector(`#copy-answer-button-${this.divid}`);t&&t.classList.remove("copy-button-hide")}localStorage.setItem(this.adaptiveId+"Solved",!0),this.recentAttempts=this.checkCount,localStorage.setItem(this.adaptiveId+"recentAttempts",this.recentAttempts)}if(localStorage.setItem(this.adaptiveId+this.divid+"Count",this.checkCount),this.setLocalStorage(),!this.hasSolved&&"incorrectTooShort"!==this.grade&&this.canHelp){var t=this.answerHash();this.lastAnswerHash!==t&&(this.numDistinct++,this.lastAnswerHash=t),3!=this.numDistinct||this.gotHelp||alert($.i18n("msg_parson_help_info"))}}this.hasSolved&&this.options.runnable&&(this.runnableDiv?this.runnableDiv.style.display=null:this.generateRunableVersion())}generateRunableVersion(){this.runnableDiv=document.getElementById(this.divid+"-runnable"),this.runnableDiv.style.display=null;let t="";for(let e of this.answerBlocks())for(let i of e.lines)t+=" ".repeat(i.indent)+i.text+"\n";t=t.slice(0,-1);const e=this.runnableDiv.querySelector("textarea");e.innerHTML=e.innerHTML.replace("==PARSONSCODE==",t),this.runnableDiv.querySelector('[data-component="parsons-runnable"]').dataset.component="activecode",window.runestoneComponents.renderOneComponent(this.runnableDiv)}renderFeedback(){var t;this.grader.showfeedback=!0,this.grade=this.grader.graderState;var e=$(this.answerArea);if(t=!0===this.showfeedback?$(this.messageDiv):$("#doesnotexist"),"correct"===this.grade){e.addClass("correct"),this.messageDiv.style.visibility="visible",t.attr("class","alert alert-info");let i=this.checkCount>1?$.i18n("msg_parson_correct",this.checkCount):$.i18n("msg_parson_correct_first_try");this.options.runnable&&(i+=" "+$.i18n("msg_parson_correct_runnable")),setTimeout((()=>{t.html(i)}),10),this.showBlockExplanations()}if("incorrectTooShort"===this.grade&&(e.addClass("incorrect"),this.messageDiv.style.visibility="visible",t.attr("class","alert 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e=$(this.messageDiv);if(this.messageDiv.style.visibility="visible",e.attr("class","alert alert-info"),setTimeout((()=>{e.html($.i18n("msg_parson_not_solution"))}),10),t.lines[0].distractHelptext&&(t.view.setAttribute("data-toggle","tooltip"),t.view.setAttribute("title",t.lines[0].distractHelptext)),t.disable(),t.inSourceArea())$(t.view).css({"border-color":"#000","background-color":"#fff"}),$(t.view).animate({opacity:.3,"border-color":"#d3d3d3","background-color":"#efefef"},{duration:2e3,complete:function(){$(t.view).css({"border-color":"","background-color":""})}});else{var i=this.sourceArea.getBoundingClientRect(),s=t.pageXCenter()-1,n=t.pageYCenter(),r=i.left+window.pageXOffset+i.width/2,o=i.top+window.pageYOffset+t.view.getBoundingClientRect().height/2,a=t.slideUnderBlock();void 0!==a&&(o+=a.view.getBoundingClientRect().height+20,o+=parseInt($(a.view).css("top")));var l=this;$(t.view).css({"border-color":"#000","background-color":"#fff"}),$(t.view).animate({opacity:1},{duration:4*Math.sqrt(Math.pow(o-n,2)+Math.pow(r-s,2))+500,start:function(){l.moving=t,l.movingX=s,l.movingY=n,l.updateView()},progress:function(t,e,i){l.movingX=s*(1-e)+r*e,l.movingY=n*(1-e)+o*e,l.updateView()},complete:function(){delete l.moving,delete l.movingX,delete l.movingY,l.updateView(),$(t.view).animate({opacity:.3,"border-color":"#d3d3d3","background-color":"#efefef"},{duration:1e3,complete:function(){$(t.view).css({opacity:"","border-color":"","background-color":""}),$(t.view).addClass("disabled")}})}})}}removeIndentation(){var t=$(this.messageDiv);this.messageDiv.style.visibility="visible",t.attr("class","alert alert-info"),setTimeout((()=>{t.html($.i18n("msg_parson_provided_indent"))}),10);for(var e,i,s=200,n=0;n<this.lines.length;n++){var 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t=this.solutionBlocks(),e=this.answerBlocks(),i=this.sourceBlocks(),s=$(this.messageDiv);this.messageDiv.style.visibility="visible",s.attr("class","alert alert-info"),setTimeout((()=>{s.html($.i18n("msg_parson_combined_blocks"))}),10);var n=null,r=null;null==(r=this.getSolutionBlockInSource())&&(r=this.getFurthestBlock());var o=t.indexOf(r);n=t[o-1];var a=e.indexOf(n),l=e.indexOf(r),h=!1;a>=0&&l>=0?h=a+1!==l:a<0&&l<0?h=(a=i.indexOf(n))+1!==(l=i.indexOf(r)):(h=!0,a<0&&(a=i.indexOf(n)),l<0&&(l=i.indexOf(r)));var c=l<a;if(h){var d=r.pageXCenter()-1,u=r.pageYCenter(),p=n.pageXCenter()-1,v=n.pageYCenter()+n.view.getBoundingClientRect().height/2+5;c?v-=r.view.getBoundingClientRect().height/2:v+=r.view.getBoundingClientRect().height/2;var 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`assign`."),ft=1,mt="ontouchstart"in n,bt=_(n,"PointerEvent")!==a,wt=mt&&/mobile|tablet|ip(ad|hone|od)|android/i.test(navigator.userAgent),kt="touch",yt="mouse",$t=25,xt=1,_t=2,Ct=4,It=8,At=1,St=2,Tt=4,Bt=8,Dt=16,Et=St|Tt,Mt=Bt|Dt,Lt=Et|Mt,Pt=["x","y"],Rt=["clientX","clientY"];I.prototype={handler:function(){},init:function(){this.evEl&&f(this.element,this.evEl,this.domHandler),this.evTarget&&f(this.target,this.evTarget,this.domHandler),this.evWin&&f(C(this.element),this.evWin,this.domHandler)},destroy:function(){this.evEl&&m(this.element,this.evEl,this.domHandler),this.evTarget&&m(this.target,this.evTarget,this.domHandler),this.evWin&&m(C(this.element),this.evWin,this.domHandler)}};var Ot={mousedown:xt,mousemove:_t,mouseup:Ct},Nt="mousedown",zt="mousemove mouseup";u(P,I,{handler:function(t){var 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touchcancel";u(O,I,{handler:function(t){var e=Yt[t.type];if(e===xt&&(this.started=!0),this.started){var i=N.call(this,t,e);e&(Ct|It)&&i[0].length-i[1].length==0&&(this.started=!1),this.callback(this.manager,e,{pointers:i[0],changedPointers:i[1],pointerType:kt,srcEvent:t})}}});var qt={touchstart:xt,touchmove:_t,touchend:Ct,touchcancel:It},Ut="touchstart touchmove touchend touchcancel";u(z,I,{handler:function(t){var e=qt[t.type],i=F.call(this,t,e);i&&this.callback(this.manager,e,{pointers:i[0],changedPointers:i[1],pointerType:kt,srcEvent:t})}});var Jt=2500,Gt=25;u(H,I,{handler:function(t,e,i){var s=i.pointerType==kt,n=i.pointerType==yt;if(!(n&&i.sourceCapabilities&&i.sourceCapabilities.firesTouchEvents)){if(s)W.call(this,e,i);else if(n&&Y.call(this,i))return;this.callback(t,e,i)}},destroy:function(){this.touch.destroy(),this.mouse.destroy()}});var Kt=_(ht.style,"touchAction"),Zt=Kt!==a,Qt="compute",te="auto",ee="manipulation",ie="none",se="pan-x",ne="pan-y",re=function(){if(!Zt)return!1;var t={},e=n.CSS&&n.CSS.supports;return["auto","manipulation","pan-y","pan-x","pan-x pan-y","none"].forEach((function(i){t[i]=!e||n.CSS.supports("touch-action",i)})),t}();V.prototype={set:function(t){t==Qt&&(t=this.compute()),Zt&&this.manager.element.style&&re[t]&&(this.manager.element.style[Kt]=t),this.actions=t.toLowerCase().trim()},update:function(){this.set(this.manager.options.touchAction)},compute:function(){var t=[];return c(this.manager.recognizers,(function(e){v(e.options.enable,[e])&&(t=t.concat(e.getTouchAction()))})),function(t){if(w(t,ie))return ie;var e=w(t,se),i=w(t,ne);return e&&i?ie:e||i?e?se:ne:w(t,ee)?ee:te}(t.join(" "))},preventDefaults:function(t){var e=t.srcEvent,i=t.offsetDirection;if(!this.manager.session.prevented){var s=this.actions,n=w(s,ie)&&!re[ie],r=w(s,ne)&&!re[ne],o=w(s,se)&&!re[se];if(n){var a=1===t.pointers.length,l=t.distance<2,h=t.deltaTime<250;if(a&&l&&h)return}return o&&r?void 0:n||r&&i&Et||o&&i&Mt?this.preventSrc(e):void 0}e.preventDefault()},preventSrc:function(t){this.manager.session.prevented=!0,t.preventDefault()}};var oe=1,ae=2,le=4,he=8,ce=he,de=16,ue=32;j.prototype={defaults:{},set:function(t){return at(this.options,t),this.manager&&this.manager.touchAction.update(),this},recognizeWith:function(t){if(h(t,"recognizeWith",this))return this;var e=this.simultaneous;return e[(t=J(t,this)).id]||(e[t.id]=t,t.recognizeWith(this)),this},dropRecognizeWith:function(t){return h(t,"dropRecognizeWith",this)||(t=J(t,this),delete this.simultaneous[t.id]),this},requireFailure:function(t){if(h(t,"requireFailure",this))return this;var e=this.requireFail;return-1===y(e,t=J(t,this))&&(e.push(t),t.requireFailure(this)),this},dropRequireFailure:function(t){if(h(t,"dropRequireFailure",this))return this;t=J(t,this);var e=y(this.requireFail,t);return e>-1&&this.requireFail.splice(e,1),this},hasRequireFailures:function(){return this.requireFail.length>0},canRecognizeWith:function(t){return!!this.simultaneous[t.id]},emit:function(t){function e(e){i.manager.emit(e,t)}var i=this,s=this.state;he>s&&e(i.options.event+q(s)),e(i.options.event),t.additionalEvent&&e(t.additionalEvent),s>=he&&e(i.options.event+q(s))},tryEmit:function(t){return this.canEmit()?this.emit(t):void(this.state=ue)},canEmit:function(){for(var t=0;t<this.requireFail.length;){if(!(this.requireFail[t].state&(ue|oe)))return!1;t++}return!0},recognize:function(t){var e=at({},t);return v(this.options.enable,[this,e])?(this.state&(ce|de|ue)&&(this.state=oe),this.state=this.process(e),void(this.state&(ae|le|he|de)&&this.tryEmit(e))):(this.reset(),void(this.state=ue))},process:function(t){},getTouchAction:function(){},reset:function(){}},u(G,j,{defaults:{pointers:1},attrTest:function(t){var e=this.options.pointers;return 0===e||t.pointers.length===e},process:function(t){var e=this.state,i=t.eventType,s=e&(ae|le),n=this.attrTest(t);return s&&(i&It||!n)?e|de:s||n?i&Ct?e|he:e&ae?e|le:ae:ue}}),u(K,G,{defaults:{event:"pan",threshold:10,pointers:1,direction:Lt},getTouchAction:function(){var t=this.options.direction,e=[];return t&Et&&e.push(ne),t&Mt&&e.push(se),e},directionTest:function(t){var e=this.options,i=!0,s=t.distance,n=t.direction,r=t.deltaX,o=t.deltaY;return n&e.direction||(e.direction&Et?(n=0===r?At:0>r?St:Tt,i=r!=this.pX,s=Math.abs(t.deltaX)):(n=0===o?At:0>o?Bt:Dt,i=o!=this.pY,s=Math.abs(t.deltaY))),t.direction=n,i&&s>e.threshold&&n&e.direction},attrTest:function(t){return G.prototype.attrTest.call(this,t)&&(this.state&ae||!(this.state&ae)&&this.directionTest(t))},emit:function(t){this.pX=t.deltaX,this.pY=t.deltaY;var e=U(t.direction);e&&(t.additionalEvent=this.options.event+e),this._super.emit.call(this,t)}}),u(Z,G,{defaults:{event:"pinch",threshold:0,pointers:2},getTouchAction:function(){return[ie]},attrTest:function(t){return this._super.attrTest.call(this,t)&&(Math.abs(t.scale-1)>this.options.threshold||this.state&ae)},emit:function(t){if(1!==t.scale){var e=t.scale<1?"in":"out";t.additionalEvent=this.options.event+e}this._super.emit.call(this,t)}}),u(Q,j,{defaults:{event:"press",pointers:1,time:251,threshold:9},getTouchAction:function(){return[te]},process:function(t){var e=this.options,i=t.pointers.length===e.pointers,s=t.distance<e.threshold,n=t.deltaTime>e.time;if(this._input=t,!s||!i||t.eventType&(Ct|It)&&!n)this.reset();else if(t.eventType&xt)this.reset(),this._timer=l((function(){this.state=ce,this.tryEmit()}),e.time,this);else if(t.eventType&Ct)return ce;return ue},reset:function(){clearTimeout(this._timer)},emit:function(t){this.state===ce&&(t&&t.eventType&Ct?this.manager.emit(this.options.event+"up",t):(this._input.timeStamp=pt(),this.manager.emit(this.options.event,this._input)))}}),u(tt,G,{defaults:{event:"rotate",threshold:0,pointers:2},getTouchAction:function(){return[ie]},attrTest:function(t){return this._super.attrTest.call(this,t)&&(Math.abs(t.rotation)>this.options.threshold||this.state&ae)}}),u(et,G,{defaults:{event:"swipe",threshold:10,velocity:.3,direction:Et|Mt,pointers:1},getTouchAction:function(){return K.prototype.getTouchAction.call(this)},attrTest:function(t){var e,i=this.options.direction;return i&(Et|Mt)?e=t.overallVelocity:i&Et?e=t.overallVelocityX:i&Mt&&(e=t.overallVelocityY),this._super.attrTest.call(this,t)&&i&t.offsetDirection&&t.distance>this.options.threshold&&t.maxPointers==this.options.pointers&&ut(e)>this.options.velocity&&t.eventType&Ct},emit:function(t){var e=U(t.offsetDirection);e&&this.manager.emit(this.options.event+e,t),this.manager.emit(this.options.event,t)}}),u(it,j,{defaults:{event:"tap",pointers:1,taps:1,interval:300,time:250,threshold:9,posThreshold:10},getTouchAction:function(){return[ee]},process:function(t){var e=this.options,i=t.pointers.length===e.pointers,s=t.distance<e.threshold,n=t.deltaTime<e.time;if(this.reset(),t.eventType&xt&&0===this.count)return this.failTimeout();if(s&&n&&i){if(t.eventType!=Ct)return this.failTimeout();var r=!this.pTime||t.timeStamp-this.pTime<e.interval,o=!this.pCenter||M(this.pCenter,t.center)<e.posThreshold;if(this.pTime=t.timeStamp,this.pCenter=t.center,o&&r?this.count+=1:this.count=1,this._input=t,0==this.count%e.taps)return this.hasRequireFailures()?(this._timer=l((function(){this.state=ce,this.tryEmit()}),e.interval,this),ae):ce}return ue},failTimeout:function(){return this._timer=l((function(){this.state=ue}),this.options.interval,this),ue},reset:function(){clearTimeout(this._timer)},emit:function(){this.state==ce&&(this._input.tapCount=this.count,this.manager.emit(this.options.event,this._input))}}),st.VERSION="2.0.8",st.defaults={domEvents:!1,touchAction:Qt,enable:!0,inputTarget:null,inputClass:null,preset:[[tt,{enable:!1}],[Z,{enable:!1},["rotate"]],[et,{direction:Et}],[K,{direction:Et},["swipe"]],[it],[it,{event:"doubletap",taps:2},["tap"]],[Q]],cssProps:{userSelect:"none",touchSelect:"none",touchCallout:"none",contentZooming:"none",userDrag:"none",tapHighlightColor:"rgba(0,0,0,0)"}},nt.prototype={set:function(t){return at(this.options,t),t.touchAction&&this.touchAction.update(),t.inputTarget&&(this.input.destroy(),this.input.target=t.inputTarget,this.input.init()),this},stop:function(t){this.session.stopped=t?2:1},recognize:function(t){var e=this.session;if(!e.stopped){this.touchAction.preventDefaults(t);var i,s=this.recognizers,n=e.curRecognizer;(!n||n&&n.state&ce)&&(n=e.curRecognizer=null);for(var r=0;r<s.length;)i=s[r],2===e.stopped||n&&i!=n&&!i.canRecognizeWith(n)?i.reset():i.recognize(t),!n&&i.state&(ae|le|he)&&(n=e.curRecognizer=i),r++}},get:function(t){if(t instanceof j)return t;for(var e=this.recognizers,i=0;i<e.length;i++)if(e[i].options.event==t)return e[i];return null},add:function(t){if(h(t,"add",this))return this;var e=this.get(t.options.event);return e&&this.remove(e),this.recognizers.push(t),t.manager=this,this.touchAction.update(),t},remove:function(t){if(h(t,"remove",this))return this;if(t=this.get(t)){var e=this.recognizers,i=y(e,t);-1!==i&&(e.splice(i,1),this.touchAction.update())}return this},on:function(t,e){if(t!==a&&e!==a){var i=this.handlers;return c(k(t),(function(t){i[t]=i[t]||[],i[t].push(e)})),this}},off:function(t,e){if(t!==a){var i=this.handlers;return c(k(t),(function(t){e?i[t]&&i[t].splice(y(i[t],e),1):delete i[t]})),this}},emit:function(t,e){this.options.domEvents&&ot(t,e);var i=this.handlers[t]&&this.handlers[t].slice();if(i&&i.length){e.type=t,e.preventDefault=function(){e.srcEvent.preventDefault()};for(var s=0;s<i.length;)i[s](e),s++}},destroy:function(){this.element&&rt(this,!1),this.handlers={},this.session={},this.input.destroy(),this.element=null}},at(st,{INPUT_START:xt,INPUT_MOVE:_t,INPUT_END:Ct,INPUT_CANCEL:It,STATE_POSSIBLE:oe,STATE_BEGAN:ae,STATE_CHANGED:le,STATE_ENDED:he,STATE_RECOGNIZED:ce,STATE_CANCELLED:de,STATE_FAILED:ue,DIRECTION_NONE:At,DIRECTION_LEFT:St,DIRECTION_RIGHT:Tt,DIRECTION_UP:Bt,DIRECTION_DOWN:Dt,DIRECTION_HORIZONTAL:Et,DIRECTION_VERTICAL:Mt,DIRECTION_ALL:Lt,Manager:nt,Input:I,TouchAction:V,TouchInput:z,MouseInput:P,PointerEventInput:R,TouchMouseInput:H,SingleTouchInput:O,Recognizer:j,AttrRecognizer:G,Tap:it,Pan:K,Swipe:et,Pinch:Z,Rotate:tt,Press:Q,on:f,off:m,each:c,merge:gt,extend:vt,assign:at,inherit:u,bindFn:p,prefixed:_}),(void 0!==n?n:"undefined"!=typeof self?self:{}).Hammer=st,void 0===(s=function(){return st}.call(e,i,e,t))||(t.exports=s)}(window,document)}}]);
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