/*! For license information please see 39.dc45aaf5abca8027.js.LICENSE.txt */
(self.webpackChunkWebComponents=self.webpackChunkWebComponents||[]).push([[39,420],{52420:(e,t,i)=>{"use strict";i.r(t),i.d(t,{default:()=>_});var s=i(78673);i(75794),i(56906),i(78811);class n{constructor(e){this.problem=e}inverseLISIndices(e){for(var t=[],i=0;i<e.length;i++){for(var s=[e[i]],n=e[i],r=-1,o=i;o<e.length;o++){var a=e[o];a>n&&r<a&&(s.push(a),r=a)}t.push(s)}var l,h=-1;for(let e in t){var c=t[e];c.length>h&&(h=c.length,l=c)}var d=[],u=0;for(let t=0;t<e.length;t++)u>l.length?d.push(t):e[t]==l[u]?u+=1:d.push(t);return d}grade(){var e=this.problem;e.clearFeedback(),this.correctLines=0,this.percentLines=0,this.incorrectIndents=0;var t,i=e.solution,s=e.answerLines();this.percentLines=Math.min(s.length,i.length)/Math.max(s.length,i.length),s.length<i.length?(t="incorrectTooShort",this.correctLength=!1):s.length==i.length?this.correctLength=!0:(t="incorrectMoveBlocks",this.correctLength=!1);let n=this.checkCorrectOrdering(i,s);return this.checkCorrectIndentation(i,s)&&n&&this.correctLength?t="correct":this.correctLength&&n?t="incorrectIndent":n||"incorrectTooShort"==t||(t="incorrectMoveBlocks"),this.calculatePercent(),this.graderState=t,t}checkCorrectIndentation(e,t){if(!this.problem.usesIndentation())return!0;this.indentLeft=[],this.indentRight=[];let i=Math.min(e.length,t.length);for(let s=0;s<i;s++)t[s].viewIndent()<e[s].indent?this.indentRight.push(t[s]):t[s].viewIndent()>e[s].indent&&this.indentLeft.push(t[s]);return this.incorrectIndents=this.indentLeft.length+this.indentRight.length,0==this.incorrectIndents}checkCorrectOrdering(e,t){let i=!0;this.correctLines=0,this.solutionLength=e.length;let s=Math.min(e.length,t.length);for(let n=0;n<s;n++)t[n].text!==e[n].text?i=!1:this.correctLines+=1;return i}calculatePercent(){let e=.2*this.percentLines,t=this.problem.answerLines().length,i=e+this.correctLines/t*.4+(this.correctLines-this.incorrectIndents)/t*.4;i=Math.max(i,0),this.problem.percent=i}}function r(e,{source:t,target:i}){try{!function(e,t,i){for(var[s,n,r]=function(e,t,i){if((s=t)===(n=i)||"object"==typeof s&&s.toString()===n.toString())return[new Map([[t,null]]),new Map([[i,null]]),t];var s,n,r,o;r=e.predecessorsIter.bind(e),o=e.successorsIter.bind(e);for(var a,l=new Map([[t,null]]),h=new Map([[i,null]]),c=[t],u=[i];c.length>0&&u.length>0;)if(c.length<=u.length){a=c,c=[];for(let e of a)for(let t of o(e))if(l.has(t)||(c.push(t),l.set(t,e)),h.has(t))return[l,h,t]}else{a=u,u=[];for(let e of a)for(let t of r(e))if(h.has(t)||(u.push(t),h.set(t,e)),l.has(t))return[l,h,t]}throw new d("No path between "+t.toString()+" and "+i.toString()+".")}(e,t,i),o=[];null!=r;)o.push(r),r=s.get(r);for(r=n.get(o[0]),o.reverse();null!=r;)o.push(r),r=n.get(r)}(e,t,i)}catch(e){if(e instanceof d)return!1;throw e}return!0}class o{constructor(){this.graph={},this.node=new Map,this.adj=new Map,this.pred=new Map,this.succ=this.adj,this.edge=this.adj}addNode(e){this.succ.has(e)||(this.succ.set(e,new Map),this.pred.set(e,new Map),this.node.set(e))}addEdge(e,t){this.succ.has(e)||(this.succ.set(e,new Map),this.pred.set(e,new Map),this.node.set(e,{})),this.succ.has(t)||(this.succ.set(t,new Map),this.pred.set(t,new Map),this.node.set(t,{}));var i=this.adj.get(e).get(t)||{};this.succ.get(e).set(t,i),this.pred.get(t).set(e,i)}nodes(e=!1){return Array.from(e?this.node.entries():this.node.keys())}edges(e,t=!1){return Array.from(this.edgesIter(e,t))}nodesIter(e=!1){return e?toIterator(this.node):this.node.keys()}get(e){var t=this.adj.get(e);if(void 0===t)throw new KeyError("Graph does not contain node "+e+".");return t}numberOfNodes(){return this.node.size}*nbunchIter(e){if(null==e)yield*this.adj.keys();else if(this.hasNode(e))yield e;else{var t=this.adj;try{for(var i of toIterator(e))t.has(i)&&(yield i)}catch(e){if(e instanceof TypeError)throw new h("nbunch is not a node or a sequence of nodes")}}}*edgesIter(e,t=!1){var i;for(var s of((!0===(i=e)||!1===i||function(e){return!!e&&"object"==typeof e}(i)&&"[object Boolean]"==Object.prototype.toString.call(i))&&(t=e,e=void 0),void 0===e?this.adj:mapIterator(this.nbunchIter(e),(e=>tuple2(e,this.adj.get(e))))))for(var n of s[1]){var r=[s[0],n[0]];t&&(r[2]=n[1]),yield r}}reverse(e=!0){var t;if(e)(t=new this.constructor(null,{name:"Reverse of ("+this.name+")"})).addNodesFrom(this),t.addEdgesFrom(mapIterator(this.edgesIter(null,!0),(e=>tuple3c(e[1],e[0],deepcopy(e[2]),e)))),t.graph=deepcopy(this.graph),t.node=deepcopy(this.node);else{var i=this.pred,s=this.succ;this.succ=i,this.pred=s,this.adj=this.succ,t=this}return t}successorsIter(e){var t=this.succ.get(e);if(void 0!==t)return t.keys();throw new h(sprintf('The node "%j" is not in the digraph.',e))}predecessorsIter(e){var t=this.pred.get(e);if(void 0!==t)return t.keys();throw new h(sprintf('The node "%j" is not in the digraph.',e))}successors(e){return Array.from(this.successorsIter(e))}predecessors(e){return Array.from(this.predecessorsIter(e))}}class a{constructor(e){this.name="JSNetworkXException",this.message=e}}class l extends a{constructor(e){super(e),this.name="JSNetworkXAlgorithmError"}}class h extends a{constructor(e){super(e),this.name="JSNetworkXError"}}class c extends l{constructor(e){super(e),this.name="JSNetworkXUnfeasible"}}class d extends c{constructor(e){super(e),this.name="JSNetworkXNoPath"}}function u(e){var t=new o;for(let i of e){t.addNode(i.tag);for(let e of i.depends)t.addEdge(e,i.tag)}return t}function p(e,t){for(let i of e.edges())if(!t.has(i[0])&&!t.has(i[1]))return!1;return!0}class v extends n{inverseLISIndices(e,t){var i=this.problem.solution,s=t.map((e=>e.lines[0]));let n=u(i),a=new Set,l=new o;for(let e of s){for(let t of a)r(n,{source:e.tag,target:t.tag})&&l.addEdge(e.tag,t.tag);a.add(e)}let h=null,c=function(e){let t={};for(let i=0;i<=e.length;i++)t[i]=[];for(let i=0;i<Math.pow(2,e.length);i++){let s=i.toString(2);for(;s.length<e.length;)s="0"+s;let n=new 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e=this.verticalOffset(),t=this.validSourceIndexes();for(let r=0;r<t.length;r++){var i=t[t.length-1-r];if(i<n.length){var s=n[i];if(s.verticalOffset()<e)return this.problem.textMoving=!0,this.problem.sourceArea.insertBefore(this.view,s.view),$(this.view).focus(),this.problem.state=void 0,this.problem.updateView(),this}}}else{let e=this.problem.answerBlocks();for(let t=0;t<e.length;t++)if(e[t].view.id==this.view.id){if(0==t)return this;this.problem.textMoving=!0,this.problem.answerArea.insertBefore(this.view,e[t-1].view),$(this.view).focus(),this.problem.state=void 0,this.problem.updateView()}}}moveRight(){if(this.inSourceArea()){this.indent=0;for(var e=this.verticalOffset(),t=this.problem.answerBlocks(),i=0;i<t.length;i++){var s=t[i];if(s.verticalOffset()>=e)return this.problem.textMoving=!0,this.problem.answerArea.insertBefore(this.view,s.view),$(this.view).focus(),this.problem.state=void 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this;s==e.length-2?(this.problem.textMoving=!0,this.problem.answerArea.appendChild(this.view)):(this.problem.textMoving=!0,this.problem.answerArea.insertBefore(this.view,e[s+2].view)),$(this.view).focus(),this.problem.state=void 0,this.problem.updateView()}}}selectLeft(){if(!this.inSourceArea()){var e=this.verticalOffset(),t=this.problem.enabledSourceBlocks();if(0==t.length)return this;for(var i=t[0],s=i.verticalOffset()-e,n=1;n<t.length;n++){var r=t[n],o=r.verticalOffset()-e;Math.abs(o)<Math.abs(s)&&(i=r,s=o)}this.problem.textFocus=i,i.makeTabIndex(),$(i.view).focus()}}selectUp(){for(var e,t=!1,i=(e=this.inSourceArea()?this.problem.enabledSourceBlocks():this.problem.enabledAnswerBlocks()).length-1;i>=0;i--){var s=e[i];if(t)return this.problem.textFocus=s,s.makeTabIndex(),$(s.view).focus(),this;s.view.id==this.view.id&&(t=!0)}}selectRight(){if(this.inSourceArea()){var e=this.verticalOffset(),t=this.problem.enabledAnswerBlocks();if(0==t.length)return this;for(var i=t[0],s=i.verticalOffset()-e,n=1;n<t.length;n++){var r=t[n],o=r.verticalOffset()-e;Math.abs(o)<Math.abs(s)&&(i=r,s=o)}this.problem.textFocus=i,i.makeTabIndex(),$(i.view).focus()}}selectDown(){var e,t=!1;e=this.inSourceArea()?this.problem.enabledSourceBlocks():this.problem.enabledAnswerBlocks();for(var i=0;i<e.length;i++){var s=e[i];if(t)return this.problem.textFocus=s,s.makeTabIndex(),$(s.view).focus(),this;s.view.id==this.view.id&&(t=!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 e="",t=0;t<this.lines.length;t++)e+=this.lines[t].index+"_";return e+this.indent}solutionIndent(){for(var e=this.lines[0].indent,t=1;t<this.lines.length;t++)e=Math.min(e,this.lines[t].indent);return e}}class w extends b{constructor(e,t,i,s){super(e,t),this.placeholderLines=t,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(e){super(e,"placeholder",!1),this.isPlaceholderLine=!0}}class y extends b{constructor(e,t){super(e,t),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(e){this.blocksBefore=e;var t=e>1?"s":"";if(this.blocksAfter){var i=this.blocksAfter>1?"s":"";$(this.view).find(".settled-tooltip").html(`${e} block${t} ⬆️️), ${this.blocksAfter} block${i} ⬇️`)}else $(this.view).find(".settled-tooltip").html(`${e} block${t} ⬆️️`)}setBlocksAfter(e){this.blocksAfter=e;var t=e>1?"s":"";if(this.blocksBefore){var i=this.blocksBefore>1?"s":"";$(this.view).find(".settled-tooltip").html(`${this.blocksBefore} block${i} ⬆️, ${e} block${t} ⬇️`)}else $(this.view).find(".settled-tooltip").html(`${e} block${t} ️️⬇️`)}}class x extends s.A{constructor(e){super(e);var t=e.orig;this.containerDiv=t,this.origElem=$(t).find("pre.parsonsblocks")[0],this.question=$(t).find(".parsons_question")[0],this.useRunestoneServices=e.useRunestoneServices,this.divid=e.orig.id;var i=super.localStorageKey();this.storageId=i,this.children=this.origElem.childNodes,this.contentArray=[],x.counter++,this.counterId="parsons-"+x.counter,this.initializeOptions(),this.grader="dag"===this.options.grader?new v(this):new n(this),this.grader.showfeedback=this.showfeedback;var s=$(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 e={pixelsPerIndent:30},t=$(this.origElem).data("maxdist"),i=$(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=$(this.origElem).data("scaffolding");if(e.numbered=r,e.grader=o,e.scaffolding=a,void 0!==t&&(e.maxdist=t),void 0!==i){i=i.match(/\d+/g);for(var l=0;l<i.length;l++)i[l]=parseInt(i[l]);e.order=i}null==s&&(s=!1),e.noindent=s,this.noindent=s,null==n?n=!1:n&&this.initializeAdaptive(),e.adaptive=n;var h=eBookConfig.locale;null==h&&(h="en"),e.locale=h;var c=$(this.origElem).data("language");null==c&&null==(c=eBookConfig.language)&&(c="python"),e.language=c;var d={python:"prettyprint 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e=this.containerDiv.querySelector(".parsons-text");e&&!e.classList.contains("exercise-statement")&&e.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"),$(this.parsonsControlDiv).addClass("parsons-controls"),this.outerDiv.appendChild(this.parsonsControlDiv);var t=this;this.checkButton=document.createElement("button"),$(this.checkButton).attr("class","btn btn-success"),this.checkButton.textContent=$.i18n("msg_parson_check_me"),this.checkButton.id=this.counterId+"-check",this.parsonsControlDiv.appendChild(this.checkButton),this.checkButton.type="button",this.checkButton.addEventListener("click",(function(e){e.preventDefault(),t.checkCurrentAnswer(),t.logCurrentAnswer(),t.renderFeedback()})),this.resetButton=document.createElement("button"),$(this.resetButton).attr("class","btn btn-default"),this.resetButton.textContent=$.i18n("msg_parson_reset"),this.resetButton.id=this.counterId+"-reset",this.resetButton.type="button",this.parsonsControlDiv.appendChild(this.resetButton),this.resetButton.addEventListener("click",(function(e){e.preventDefault(),t.clearFeedback(),$(t.checkButton).prop("disabled",!1),t.resetView(),t.checkCount=0,t.logMove("reset"),t.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(e){e.preventDefault(),t.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(e){this.lines=[];var t=e.split("---");1===t.length&&(t=e.split("\n"));var i=[],s=[];if(!0===this.options.scaffolding){for(var n=!1,r=0;r<t.length;r++){var o=t[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:.*;.*;/,(e=>e.replace(/\s+/g,"")))).indexOf("#tag:"),""==(y=o.substring(w+5,o.indexOf(";",w+5)))&&(y="block-"+r),x=o.indexOf(";depends:");let e=o.substring(x+9,o.indexOf(";",x+9));h=e.length>0?e.split(","):[]}if(o.includes('class="displaymath')?a.displaymath=!0:a.displaymath=!1,o=o.replace(/#(paired|distractor|settled|tag:.*;.*;)/,(function(e,t){return a[t]=!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 e=null,t=null;for(let i=0;i<this.lines.length;i++){const s=this.lines[i].text;if(null===e&&(s.includes("public class")||s.startsWith("import"))&&(e=this.lines[i].indent),null===t&&s.includes("public static")&&(t=this.lines[i].indent),null!==e&&null!==t)break}if(0===e&&8===t){s=s.sort((function(e,t){return e-t}));for(let e=0;e<this.lines.length;e++){let t=this.lines[e],i=t.indent,n=s.indexOf(i);n>0&&(n-=1),t.indent=n}}else{s=s.sort((function(e,t){return e-t}));for(let e=0;e<this.lines.length;e++){let t=this.lines[e];t.indent=s.indexOf(t.indent)}}}else{s=s.sort((function(e,t){return e-t}));for(let e=0;e<this.lines.length;e++){let t=this.lines[e];t.indent=s.indexOf(t.indent)}}this.solution=i}else{for(r=0;r<t.length;r++){var b,w,y,x;if(o=t[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:.*;.*;/,(e=>e.replace(/\s+/g,"")))).indexOf("#tag:"),""==(y=o.substring(w+5,o.indexOf(";",w+5)))&&(y="block-"+r),x=o.indexOf(";depends:");let e=o.substring(x+9,o.indexOf(";",x+9));h=e.length>0?e.split(","):[]}if(o.includes('class="displaymath')?a.displaymath=!0:a.displaymath=!1,o=o.replace(/\s*#(paired|distractor|tag:.*;.*;)\s*/g,(function(e,t){return a[t]=!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(e,t){return e-t})),r=0;r<this.lines.length;r++)(m=this.lines[r]).indent=s.indexOf(m.indent);this.solution=i}}async initializeAreas(e,t,i){var s,n,r=[];for(s=0;s<e.length;s++)n=e[s],r.push(n),this.sourceArea.appendChild(n.view);for(s=0;s<t.length;s++)n=t[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),$(this.outerDiv).addClass("runestone-sphinx"),document.body.appendChild(this.outerDiv)),""!==this.options.prettifyLanguage&&"undefined"==typeof Prism&&prettyPrint();const c=this.options.language;if(c&&"undefined"!=typeof Prism){const e=this.containerDiv.querySelectorAll("code");for(const t of e)t.classList.add(`language-${c}`);Prism.highlightAllUnder(this.containerDiv)}for(let e=0;e<this.lines.length;e++)this.lines[e].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(e){"natural"!=this.options.language&&"math"!=this.options.language||("undefined"!=typeof runestoneMathReady?await runestoneMathReady.then((async()=>await f.queueMathJax(e[0]))):void 0!==MathJax.startup&&await f.queueMathJax(e[0])),u=Math.max(u,e.outerWidth(!0)),e.width(u-22);var t=3.8;let i=e.outerHeight(!0);38!=i&&(t=3.1*(i-38)/21),p+=i+g*t}.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}),$(this.answerArea).css({width:this.options.pixelsPerIndent*a+this.areaWidth+2,height:p}),this.pairedBins=y,this.pairedDivs=_,null!=this.options.numbered&&this.addBlockLabels(e.concat(t)),this.state=void 0,this.updateView(),h&&$(l).replaceWith(this.outerDiv)}initializeInteractivity(){for(var e=0;e<this.blocks.length;e++)this.blocks[e].initializeInteractivity();this.initializeTabIndex();"natural"!=this.options.language&&"math"!=this.options.language||void 0!==MathJax.startup&&this.queueMathJax(this.outerDiv)}initializeTabIndex(){for(var e=0;e<this.blocks.length;e++){var t=this.blocks[e];if(t.enabled())return t.makeTabIndex(),this}}newerData(e,t){var i=e.timestamp,s=t.timestamp;return null==i?t:null==s||(i=this.dateFromTimestamp(i))>(s=this.dateFromTimestamp(s))?e:t}async loadData(e){if(!0===this.options.scaffolding){null==(i=e.source)&&(i=e.trash);var t=e.answer;void 0!==(n=null==(s=e.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),!0!==this.needsReinitialization&&(this.initializeInteractivity(),this.isTimed&&!this.assessmentTaken&&this.resetView())}else{var i,s,n;null==(i=e.source)&&(i=e.trash),t=e.answer,void 0!==(n=null==(s=e.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==t||1==t.length?await this.initializeAreas(this.blocksFromSource(),[],n):(this.initializeAreas(this.blocksFromHash(i),this.blocksFromHash(t),n),this.grade=this.grader.grade(),"correct"==this.grade?this.correct=!0:0==this.answerLines().length?this.correct=null:this.correct=!1),!0!==this.needsReinitialization&&(this.initializeInteractivity(),this.isTimed&&!this.assessmentTaken&&this.resetView())}}localData(){var e=localStorage.getItem(this.storageId);return null!==e&&"{"==e.charAt(0)?JSON.parse(e):{}}restoreAnswers(e){this.loadData(e)}checkLocalStorage(){this.graderactive||this.loadData(this.localData())}setLocalStorage(e){var t;if(null==e){t={source:this.sourceHash(),answer:this.answerHash(),timestamp:new Date};var i=this.adaptiveHash();i.length>0&&(t.adaptive=i)}else t=e;localStorage.setItem(this.storageId,JSON.stringify(t))}async updatePlaceholders(){setTimeout((()=>{var e,t,i,s=this.answerBlocks();for(e=0;e<s.length;++e)if(s[e].isPlaceholder&&(i=s[e],t=!1,e>0&&!s[e-1].isSettled&&!s[e-1].isPlaceholder&&(t=!0),e<s.length-1&&!s[e+1].isSettled&&!s[e+1].isPlaceholder&&(t=!0),t&&!$(i.view).hasClass("hide"))){$(i.view).addClass("hide");for(var n=0;n<s.length-1-e;n++)i.moveDown()}}),5),setTimeout((()=>{for(var e=this.answerBlocks(),t=0;t<e.length&&!$(e[t].view).hasClass("hide");)t++;var i=!0;this.firstBlockSettled&&(i=!1);var s,n,r=0;for(s=0;s<t&&(!e[s].isSettled||!i);++s)e[s].isSettled?(i=!0,r++):i=!1;if(s<t||e[t-1]&&e[t-1].isSettled&&!this.lastBlockSettled){var o;for(o=e.length-1;o>=t;o--)if(e[o].afterSettledBlockCount==r){n=e[o];break}if(e[o].afterSettledBlockCount!=r)return void console.log("error moving up; no placeholder found");if($(n.view).hasClass("hide")){$(n.view).removeClass("hide");for(var a=0;a<o-s;a++)n.moveUp()}}}),10)}logMove(e){var t={event:"parsonsMove",div_id:this.divid,storageid:super.localStorageKey()},i=e+"|"+this.sourceHash()+"|"+this.answerHash(),s=this.adaptiveHash();""!==s&&(i=i+"|"+s),t.act=i,this.logBookEvent(t)}async logCurrentAnswer(e){var t={event:"parsons",div_id:this.divid},i=this.answerHash();t.answer=i;var s=this.sourceHash();t.source=s;var n=s+"|"+i,r=this.adaptiveHash();""!==r&&(t.adaptive=r,n=n+"|"+r),"correct"==this.grade?(n="correct|"+n,t.correct="T"):(n="incorrect|"+n,t.correct="F"),t.act=n,void 0!==e&&(t.sid=e),await this.logBookEvent(t)}adaptiveHash(){if(!this.options.adaptive)return"";for(var e=[],t=0;t<this.blocks.length;t++){var i=this.blocks[t];i.enabled()||e.push("d"+i.lines[0].index)}return this.noindent!==this.options.noindent&&e.push("i"),e.push("c"+this.checkCount),this.hasSolved&&e.push("s"),e.join("-")}optionsFromHash(e){var t;t="-"===e||""===e||null===e?[]:e.split("-");for(var i={},s=[],n=0;n<t.length;n++){var r=t[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 e=[],t=this.answerBlocks(),i=0;i<t.length;i++)e.push(t[i].hash());return 0===e.length?"-":e.join("-")}sourceHash(){for(var e=[],t=this.sourceBlocks(),i=0;i<t.length;i++)e.push(t[i].hash());return 0===e.length?"-":e.join("-")}adaptBlocks(e){for(var t,i=[],s=[],n=0;n<e.length;n++)(t=e[n]).isDistractor()?s.push(t):i.push(t);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<e.length;n++)(t=e[n]).isDistractor()?-1==$.inArray(t,s)&&c.push(t):c.push(t);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 e=0;e<a;e++){var p=-10,v=-10;for(u=0;u<d.length-1;u++){t=d[u];var g=d[u+1],f=10-t.lines.length-g.lines.length,m=t.minimumLineIndent(),b=g.minimumLineIndent();m==b?f+=2:m>b&&(f-=1),t.lines[t.lines.length-1].indent==g.lines[0].indent&&(f+=1),f>=p&&(p=f,v=u)}for(t=d[v],g=d[v+1],u=0;u<g.lines.length;u++)t.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 e,t,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=[]));e=n;var a=[];if(void 0!==this.options.maxdist){var l=this.options.maxdist,h=[];for(s=0;s<n.length;s++)(t=n[s]).lines[0].distractor&&h.push(t);if(l<h.length){for(h=(h=this.shuffled(h)).slice(0,l),s=0;s<n.length;s++)(t=n[s]).lines[0].distractor?$.inArray(t,h)>-1?r.push(t):a.push(s):r.push(t);n=r,r=[]}}if(this.recentAttempts<2?this.pairDistractors=!1:this.pairDistractors=!0,void 0===this.options.order){var c=[],d=[];for(s=0;s<n.length;s++)(t=n[s]).lines[0].paired&&this.pairDistractors?d.push(t):((d=[]).push(t),c.push(d));for(c=this.shuffled(c),s=0;s<c.length;s++)if((d=c[s]).length>1)for(d=this.shuffled(d),p=0;p<d.length;p++)r.push(d[p]);else r.push(d[0])}else for(s=0;s<this.options.order.length;s++)void 0!==(t=e[this.options.order[s]])&&$.inArray(this.options.order[s],a)<0&&r.push(t);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):$.inArray(a[s],this.options.order);r.splice(u,0,e[a[s]])}if(this.pairDistractors&&null!=this.options.order)for(s=1;s<e.length;s++)if(e[s].lines[0].paired&&$.inArray(e[s],r)>=0){for(var p=s;$.inArray(e[p-1],r)<0;)p--;var v=$.inArray(e[p-1],r),g=$.inArray(e[s],r);r.splice(g,1),r.splice(v,0,e[s])}return r}blockFromHash(e){for(var t=e.split("_"),i=[],s=0;s<t.length-1;s++)i.push(this.lines[t[s]]);var n=new b(this,i);return this.noindent?n.indent=0:n.indent=Number(t[t.length-1]),n}blocksFromHash(e){var t;t="-"===e||""===e||null===e?[]:e.split("-");for(var i=[],s=0;s<t.length;s++)i.push(this.blockFromHash(t[s]));return this.options.adaptive?this.adaptBlocks(i):i}settledBlocksFromSource(){var e,t,i=[],s=[],n=0,r=0,o=void 0,a=0;for(t=0;t<this.lines.length;t++)if(e=this.lines[t],s.push(e),!e.groupWithNext)if(e.isPlaceholderLine)i.push(new w(this,s,n,r)),o&&o.setBlocksAfter(n),a=n,n=0,s=[];else if(e.isSettled){0==i.length&&(this.firstBlockSettled=!0);var l=new y(this,s);this.noindent||(l.indent=s[0].indent),console.log("settled block set",l),i.push(l),a>0&&l.setBlocksBefore(a),o=l,r++,n=0,s=[]}else s[0].distractor||n++,s=[];return i.length>0&&i[i.length-1].isSettled&&(this.lastBlockSettled=!0),console.log("settledblocksfromsource",i),i}getBlockById(e){for(var t=0;t<this.blocks.length;t++){var i=this.blocks[t];if(i.view.id==e)return i}}solutionBlocks(){for(var e=[],t=[],i=0;i<this.lines.length;i++)this.lines[i].distractor||t.push(this.lines[i]);var s=t[0].block();e.push(s);for(let i=1;i<t.length;i++){var n=t[i].block();s!==n&&(s=n,e.push(s))}return e}sourceBlocks(){for(var e=[],t=this.sourceArea.childNodes,i=0;i<t.length;i++){var s=t[i];$(s).hasClass("block")&&e.push(this.getBlockById(s.id))}return e}enabledSourceBlocks(){for(var e=this.sourceBlocks(),t=[],i=0;i<e.length;i++){var s=e[i];s.enabled()&&t.push(s)}return t}answerBlocks(){for(var e=[],t=this.answerArea.childNodes,i=0;i<t.length;i++){var s=this.getBlockById(t[i].id);void 0!==s&&e.push(s)}return e}enabledAnswerBlocks(){for(var e=this.answerBlocks(),t=[],i=0;i<e.length;i++){var s=e[i];s.enabled()&&t.push(s)}return t}answerLines(){for(var e=[],t=this.answerBlocks(),i=0;i<t.length;i++){var s=t[i];if(!s.isPlaceholder)for(var n=0;n<s.lines.length;n++)e.push(s.lines[n])}return e}getBlockFor(e){for(var t=e;!t.classList.contains("block");)t=t.parentElement;return t}solutionIndent(){for(var e=0,t=0;t<this.blocks.length;t++){var i=this.blocks[t];e=Math.max(e,i.solutionIndent())}return e}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,$(this.checkButton).prop("disabled",!0),this.hasSolved&&this.options.scaffolding){const e=document.querySelector(`#copy-answer-button-${this.divid}`);e&&e.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 e=this.answerHash();this.lastAnswerHash!==e&&(this.numDistinct++,this.lastAnswerHash=e),3!=this.numDistinct||this.gotHelp||alert($.i18n("msg_parson_help_info"))}}this.hasSolved&&this.options.runnable&&(this.runnableDiv?this.runnableDiv.style.display=null:this.generateRunableVersion())}generateRunableVersion(){this.runnableDiv=document.getElementById(this.divid+"-runnable"),this.runnableDiv.style.display=null;let e="";for(let t of this.answerBlocks())for(let i of t.lines)e+="    ".repeat(i.indent)+i.text+"\n";e=e.slice(0,-1);const t=this.runnableDiv.querySelector("textarea");t.innerHTML=t.innerHTML.replace("==PARSONSCODE==",e),this.runnableDiv.querySelector('[data-component="parsons-runnable"]').dataset.component="activecode",window.runestoneComponents.renderOneComponent(this.runnableDiv)}renderFeedback(){var e;this.grader.showfeedback=!0,this.grade=this.grader.graderState;var t=$(this.answerArea);if(e=!0===this.showfeedback?$(this.messageDiv):$("#doesnotexist"),"correct"===this.grade){t.addClass("correct"),this.messageDiv.style.visibility="visible",e.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+=" "+$.i18n("msg_parson_correct_runnable")),setTimeout((()=>{e.html(i)}),10)}if("incorrectTooShort"===this.grade&&(t.addClass("incorrect"),this.messageDiv.style.visibility="visible",e.attr("class","alert alert-danger"),setTimeout((()=>{e.html($.i18n("msg_parson_too_short"))}),10)),"incorrectIndent"===this.grade){var i=[];for(let e=0;e<this.grader.indentLeft.length;e++)a=this.grader.indentLeft[e].block(),-1==i.indexOf(a)&&(i.push(a),$(a.view).addClass("indentLeft"));for(let e=0;e<this.grader.indentRight.length;e++)a=this.grader.indentRight[e].block(),-1==i.indexOf(a)&&(i.push(a),$(a.view).addClass("indentRight"));this.messageDiv.style.visibility="visible",e.attr("class","alert alert-danger"),setTimeout((()=>{1==i.length?e.html($.i18n("msg_parson_wrong_indent")):e.html($.i18n("msg_parson_wrong_indents"))}),10)}if("incorrectMoveBlocks"===this.grade){var s=this.answerBlocks(),n=[],r=[],o=[];for(let e=0;e<s.length;e++){var a=s[e],l=this.solution.indexOf(a.lines[0]);-1==l?o.push(a):(n.push(a),r.push(l))}var h=this.grader.inverseLISIndices(r,n);for(let e=0;e<h.length;e++)o.push(n[h[e]]);if(t.addClass("incorrect"),this.messageDiv.style.visibility="visible",e.attr("class","alert alert-danger"),!0===this.showfeedback)for(let 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e=localStorage.getItem(this.adaptiveId+this.divid+"Count");null!=e&&"NaN"!=e||(e=0),this.checkCount=e,this.recentAttempts=localStorage.getItem(this.adaptiveId+"recentAttempts"),null!=this.recentAttempts&&"NaN"!=this.recentAttempts||(this.recentAttempts=3),localStorage.setItem(this.adaptiveId+"recentAttempts",this.recentAttempts),localStorage.setItem(this.adaptiveId+"Problem",this.divid),localStorage.setItem(this.adaptiveId+this.divid+"Count",this.checkCount),localStorage.setItem(this.adaptiveId+"Solved",!1)}usesIndentation(){return!this.noindent&&0!=this.solutionIndent()}distractorToRemove(){var e,t=this.enabledAnswerBlocks();for(let i=0;i<t.length;i++)if((e=t[i]).isDistractor())return e;t=this.enabledSourceBlocks();for(let i=0;i<t.length;i++)if((e=t[i]).isDistractor())return e}numberOfBlocks(e=!0){for(var t=0,i=0;i<this.blocks.length;i++)!this.blocks[i].enabled()||!e&&this.blocks[i].isDistractor()||(t+=1);return t}removeDistractor(e){var t=$(this.messageDiv);if(this.messageDiv.style.visibility="visible",t.attr("class","alert alert-info"),setTimeout((()=>{t.html($.i18n("msg_parson_not_solution"))}),10),e.lines[0].distractHelptext&&(e.view.setAttribute("data-toggle","tooltip"),e.view.setAttribute("title",e.lines[0].distractHelptext)),e.disable(),e.inSourceArea())$(e.view).css({"border-color":"#000","background-color":"#fff"}),$(e.view).animate({opacity:.3,"border-color":"#d3d3d3","background-color":"#efefef"},{duration:2e3,complete:function(){$(e.view).css({"border-color":"","background-color":""})}});else{var i=this.sourceArea.getBoundingClientRect(),s=e.pageXCenter()-1,n=e.pageYCenter(),r=i.left+window.pageXOffset+i.width/2,o=i.top+window.pageYOffset+e.view.getBoundingClientRect().height/2,a=e.slideUnderBlock();void 0!==a&&(o+=a.view.getBoundingClientRect().height+20,o+=parseInt($(a.view).css("top")));var l=this;$(e.view).css({"border-color":"#000","background-color":"#fff"}),$(e.view).animate({opacity:1},{duration:4*Math.sqrt(Math.pow(o-n,2)+Math.pow(r-s,2))+500,start:function(){l.moving=e,l.movingX=s,l.movingY=n,l.updateView()},progress:function(e,t,i){l.movingX=s*(1-t)+r*t,l.movingY=n*(1-t)+o*t,l.updateView()},complete:function(){delete l.moving,delete l.movingX,delete l.movingY,l.updateView(),$(e.view).animate({opacity:.3,"border-color":"#d3d3d3","background-color":"#efefef"},{duration:1e3,complete:function(){$(e.view).css({opacity:"","border-color":"","background-color":""}),$(e.view).addClass("disabled")}})}})}}removeIndentation(){var e=$(this.messageDiv);this.messageDiv.style.visibility="visible",e.attr("class","alert alert-info"),setTimeout((()=>{e.html($.i18n("msg_parson_provided_indent"))}),10);for(var t,i,s=200,n=0;n<this.lines.length;n++){var r=this.lines[n],o=r.width+r.indent*this.options.pixelsPerIndent+30;s=Math.max(s,o)}null!=this.options.numbered&&(s+=25),this.areaWidth=s+22;var a=this.sourceBlocks();for(let e=0;e<a.length;e++)0==(i=(t=a[e]).solutionIndent())?$(t.view).animate({width:s},{duration:1e3}):$(t.view).animate({width:s-i*this.options.pixelsPerIndent,"padding-left":i*this.options.pixelsPerIndent+10},{duration:1e3});for(let e=0;e<this.pairedDivs.length;e++)$(this.pairedDivs[e]).animate({width:s+34},{duration:1e3});var l=this.answerBlocks();for(let e=0;e<l.length;e++)0==(i=(t=l[e]).solutionIndent())?$(t.view).animate({left:0,width:s},{duration:1e3}):$(t.view).animate({left:0,width:s-i*this.options.pixelsPerIndent,"padding-left":i*this.options.pixelsPerIndent+10},{duration:1e3});$(this.answerArea).removeClass("answer1 answer2 answer3 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e=this.solutionBlocks(),t=this.answerBlocks(),i=this.sourceBlocks(),s=$(this.messageDiv);this.messageDiv.style.visibility="visible",s.attr("class","alert alert-info"),setTimeout((()=>{s.html($.i18n("msg_parson_combined_blocks"))}),10);var n=null,r=null;null==(r=this.getSolutionBlockInSource())&&(r=this.getFurthestBlock());var o=e.indexOf(r);n=e[o-1];var a=t.indexOf(n),l=t.indexOf(r),h=!1;a>=0&&l>=0?h=a+1!==l:a<0&&l<0?h=(a=i.indexOf(n))+1!==(l=i.indexOf(r)):(h=!0,a<0&&(a=i.indexOf(n)),l<0&&(l=i.indexOf(r)));var c=l<a;if(h){var d=r.pageXCenter()-1,u=r.pageYCenter(),p=n.pageXCenter()-1,v=n.pageYCenter()+n.view.getBoundingClientRect().height/2+5;c?v-=r.view.getBoundingClientRect().height/2:v+=r.view.getBoundingClientRect().height/2;var g=this;$(r.view).animate({opacity:1},{duration:1e3,start:function(){$(n.view).css({"border-color":"#000","background-color":"#fff"}),$(r.view).css({"border-color":"#000","background-color":"#fff"}),r.lines[0].index+=1e3,g.moving=r,g.movingX=d,g.movingY=u,g.updateView()},progress:function(e,t,i){g.movingX=d*(1-t)+p*t,g.movingY=u*(1-t)+v*t,g.updateView()},complete:function(){delete g.moving,delete g.movingX,delete g.movingY,g.updateView(),r.lines[0].index-=1e3,n.consumeBlock(r),$(n.view).animate({"border-color":"#d3d3d3","background-color":"#efefef"},{duration:1e3,complete:function(){$(n.view).css({"border-color":"","background-color":""})}})}})}else 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touchcancel";u(O,I,{handler:function(e){var t=Ye[e.type];if(t===xe&&(this.started=!0),this.started){var i=N.call(this,e,t);t&(Ce|Ie)&&i[0].length-i[1].length==0&&(this.started=!1),this.callback(this.manager,t,{pointers:i[0],changedPointers:i[1],pointerType:ke,srcEvent:e})}}});var qe={touchstart:xe,touchmove:_e,touchend:Ce,touchcancel:Ie},Ue="touchstart touchmove touchend touchcancel";u(z,I,{handler:function(e){var t=qe[e.type],i=F.call(this,e,t);i&&this.callback(this.manager,t,{pointers:i[0],changedPointers:i[1],pointerType:ke,srcEvent:e})}});var Ge=2500,Je=25;u(H,I,{handler:function(e,t,i){var s=i.pointerType==ke,n=i.pointerType==ye;if(!(n&&i.sourceCapabilities&&i.sourceCapabilities.firesTouchEvents)){if(s)W.call(this,t,i);else if(n&&Y.call(this,i))return;this.callback(e,t,i)}},destroy:function(){this.touch.destroy(),this.mouse.destroy()}});var Ke=_(he.style,"touchAction"),Ze=Ke!==a,Qe="compute",et="auto",tt="manipulation",it="none",st="pan-x",nt="pan-y",rt=function(){if(!Ze)return!1;var e={},t=n.CSS&&n.CSS.supports;return["auto","manipulation","pan-y","pan-x","pan-x pan-y","none"].forEach((function(i){e[i]=!t||n.CSS.supports("touch-action",i)})),e}();V.prototype={set:function(e){e==Qe&&(e=this.compute()),Ze&&this.manager.element.style&&rt[e]&&(this.manager.element.style[Ke]=e),this.actions=e.toLowerCase().trim()},update:function(){this.set(this.manager.options.touchAction)},compute:function(){var e=[];return c(this.manager.recognizers,(function(t){v(t.options.enable,[t])&&(e=e.concat(t.getTouchAction()))})),function(e){if(w(e,it))return it;var t=w(e,st),i=w(e,nt);return t&&i?it:t||i?t?st:nt:w(e,tt)?tt:et}(e.join(" "))},preventDefaults:function(e){var t=e.srcEvent,i=e.offsetDirection;if(!this.manager.session.prevented){var s=this.actions,n=w(s,it)&&!rt[it],r=w(s,nt)&&!rt[nt],o=w(s,st)&&!rt[st];if(n){var a=1===e.pointers.length,l=e.distance<2,h=e.deltaTime<250;if(a&&l&&h)return}return o&&r?void 0:n||r&&i&Ee||o&&i&Me?this.preventSrc(t):void 0}t.preventDefault()},preventSrc:function(e){this.manager.session.prevented=!0,e.preventDefault()}};var ot=1,at=2,lt=4,ht=8,ct=ht,dt=16,ut=32;j.prototype={defaults:{},set:function(e){return ae(this.options,e),this.manager&&this.manager.touchAction.update(),this},recognizeWith:function(e){if(h(e,"recognizeWith",this))return this;var t=this.simultaneous;return t[(e=G(e,this)).id]||(t[e.id]=e,e.recognizeWith(this)),this},dropRecognizeWith:function(e){return h(e,"dropRecognizeWith",this)||(e=G(e,this),delete this.simultaneous[e.id]),this},requireFailure:function(e){if(h(e,"requireFailure",this))return this;var t=this.requireFail;return-1===y(t,e=G(e,this))&&(t.push(e),e.requireFailure(this)),this},dropRequireFailure:function(e){if(h(e,"dropRequireFailure",this))return this;e=G(e,this);var t=y(this.requireFail,e);return t>-1&&this.requireFail.splice(t,1),this},hasRequireFailures:function(){return this.requireFail.length>0},canRecognizeWith:function(e){return!!this.simultaneous[e.id]},emit:function(e){function t(t){i.manager.emit(t,e)}var i=this,s=this.state;ht>s&&t(i.options.event+q(s)),t(i.options.event),e.additionalEvent&&t(e.additionalEvent),s>=ht&&t(i.options.event+q(s))},tryEmit:function(e){return this.canEmit()?this.emit(e):void(this.state=ut)},canEmit:function(){for(var e=0;e<this.requireFail.length;){if(!(this.requireFail[e].state&(ut|ot)))return!1;e++}return!0},recognize:function(e){var t=ae({},e);return v(this.options.enable,[this,t])?(this.state&(ct|dt|ut)&&(this.state=ot),this.state=this.process(t),void(this.state&(at|lt|ht|dt)&&this.tryEmit(t))):(this.reset(),void(this.state=ut))},process:function(e){},getTouchAction:function(){},reset:function(){}},u(J,j,{defaults:{pointers:1},attrTest:function(e){var t=this.options.pointers;return 0===t||e.pointers.length===t},process:function(e){var t=this.state,i=e.eventType,s=t&(at|lt),n=this.attrTest(e);return s&&(i&Ie||!n)?t|dt:s||n?i&Ce?t|ht:t&at?t|lt:at:ut}}),u(K,J,{defaults:{event:"pan",threshold:10,pointers:1,direction:Le},getTouchAction:function(){var e=this.options.direction,t=[];return e&Ee&&t.push(nt),e&Me&&t.push(st),t},directionTest:function(e){var t=this.options,i=!0,s=e.distance,n=e.direction,r=e.deltaX,o=e.deltaY;return n&t.direction||(t.direction&Ee?(n=0===r?Ae:0>r?Se:Te,i=r!=this.pX,s=Math.abs(e.deltaX)):(n=0===o?Ae:0>o?Be:De,i=o!=this.pY,s=Math.abs(e.deltaY))),e.direction=n,i&&s>t.threshold&&n&t.direction},attrTest:function(e){return J.prototype.attrTest.call(this,e)&&(this.state&at||!(this.state&at)&&this.directionTest(e))},emit:function(e){this.pX=e.deltaX,this.pY=e.deltaY;var t=U(e.direction);t&&(e.additionalEvent=this.options.event+t),this._super.emit.call(this,e)}}),u(Z,J,{defaults:{event:"pinch",threshold:0,pointers:2},getTouchAction:function(){return[it]},attrTest:function(e){return this._super.attrTest.call(this,e)&&(Math.abs(e.scale-1)>this.options.threshold||this.state&at)},emit:function(e){if(1!==e.scale){var t=e.scale<1?"in":"out";e.additionalEvent=this.options.event+t}this._super.emit.call(this,e)}}),u(Q,j,{defaults:{event:"press",pointers:1,time:251,threshold:9},getTouchAction:function(){return[et]},process:function(e){var t=this.options,i=e.pointers.length===t.pointers,s=e.distance<t.threshold,n=e.deltaTime>t.time;if(this._input=e,!s||!i||e.eventType&(Ce|Ie)&&!n)this.reset();else if(e.eventType&xe)this.reset(),this._timer=l((function(){this.state=ct,this.tryEmit()}),t.time,this);else if(e.eventType&Ce)return ct;return ut},reset:function(){clearTimeout(this._timer)},emit:function(e){this.state===ct&&(e&&e.eventType&Ce?this.manager.emit(this.options.event+"up",e):(this._input.timeStamp=pe(),this.manager.emit(this.options.event,this._input)))}}),u(ee,J,{defaults:{event:"rotate",threshold:0,pointers:2},getTouchAction:function(){return[it]},attrTest:function(e){return this._super.attrTest.call(this,e)&&(Math.abs(e.rotation)>this.options.threshold||this.state&at)}}),u(te,J,{defaults:{event:"swipe",threshold:10,velocity:.3,direction:Ee|Me,pointers:1},getTouchAction:function(){return K.prototype.getTouchAction.call(this)},attrTest:function(e){var t,i=this.options.direction;return i&(Ee|Me)?t=e.overallVelocity:i&Ee?t=e.overallVelocityX:i&Me&&(t=e.overallVelocityY),this._super.attrTest.call(this,e)&&i&e.offsetDirection&&e.distance>this.options.threshold&&e.maxPointers==this.options.pointers&&ue(t)>this.options.velocity&&e.eventType&Ce},emit:function(e){var t=U(e.offsetDirection);t&&this.manager.emit(this.options.event+t,e),this.manager.emit(this.options.event,e)}}),u(ie,j,{defaults:{event:"tap",pointers:1,taps:1,interval:300,time:250,threshold:9,posThreshold:10},getTouchAction:function(){return[tt]},process:function(e){var t=this.options,i=e.pointers.length===t.pointers,s=e.distance<t.threshold,n=e.deltaTime<t.time;if(this.reset(),e.eventType&xe&&0===this.count)return this.failTimeout();if(s&&n&&i){if(e.eventType!=Ce)return this.failTimeout();var r=!this.pTime||e.timeStamp-this.pTime<t.interval,o=!this.pCenter||M(this.pCenter,e.center)<t.posThreshold;if(this.pTime=e.timeStamp,this.pCenter=e.center,o&&r?this.count+=1:this.count=1,this._input=e,0==this.count%t.taps)return this.hasRequireFailures()?(this._timer=l((function(){this.state=ct,this.tryEmit()}),t.interval,this),at):ct}return ut},failTimeout:function(){return this._timer=l((function(){this.state=ut}),this.options.interval,this),ut},reset:function(){clearTimeout(this._timer)},emit:function(){this.state==ct&&(this._input.tapCount=this.count,this.manager.emit(this.options.event,this._input))}}),se.VERSION="2.0.8",se.defaults={domEvents:!1,touchAction:Qe,enable:!0,inputTarget:null,inputClass:null,preset:[[ee,{enable:!1}],[Z,{enable:!1},["rotate"]],[te,{direction:Ee}],[K,{direction:Ee},["swipe"]],[ie],[ie,{event:"doubletap",taps:2},["tap"]],[Q]],cssProps:{userSelect:"none",touchSelect:"none",touchCallout:"none",contentZooming:"none",userDrag:"none",tapHighlightColor:"rgba(0,0,0,0)"}},ne.prototype={set:function(e){return ae(this.options,e),e.touchAction&&this.touchAction.update(),e.inputTarget&&(this.input.destroy(),this.input.target=e.inputTarget,this.input.init()),this},stop:function(e){this.session.stopped=e?2:1},recognize:function(e){var t=this.session;if(!t.stopped){this.touchAction.preventDefaults(e);var i,s=this.recognizers,n=t.curRecognizer;(!n||n&&n.state&ct)&&(n=t.curRecognizer=null);for(var r=0;r<s.length;)i=s[r],2===t.stopped||n&&i!=n&&!i.canRecognizeWith(n)?i.reset():i.recognize(e),!n&&i.state&(at|lt|ht)&&(n=t.curRecognizer=i),r++}},get:function(e){if(e instanceof j)return e;for(var t=this.recognizers,i=0;i<t.length;i++)if(t[i].options.event==e)return t[i];return null},add:function(e){if(h(e,"add",this))return this;var t=this.get(e.options.event);return t&&this.remove(t),this.recognizers.push(e),e.manager=this,this.touchAction.update(),e},remove:function(e){if(h(e,"remove",this))return this;if(e=this.get(e)){var t=this.recognizers,i=y(t,e);-1!==i&&(t.splice(i,1),this.touchAction.update())}return this},on:function(e,t){if(e!==a&&t!==a){var i=this.handlers;return c(k(e),(function(e){i[e]=i[e]||[],i[e].push(t)})),this}},off:function(e,t){if(e!==a){var i=this.handlers;return c(k(e),(function(e){t?i[e]&&i[e].splice(y(i[e],t),1):delete i[e]})),this}},emit:function(e,t){this.options.domEvents&&oe(e,t);var i=this.handlers[e]&&this.handlers[e].slice();if(i&&i.length){t.type=e,t.preventDefault=function(){t.srcEvent.preventDefault()};for(var s=0;s<i.length;)i[s](t),s++}},destroy:function(){this.element&&re(this,!1),this.handlers={},this.session={},this.input.destroy(),this.element=null}},ae(se,{INPUT_START:xe,INPUT_MOVE:_e,INPUT_END:Ce,INPUT_CANCEL:Ie,STATE_POSSIBLE:ot,STATE_BEGAN:at,STATE_CHANGED:lt,STATE_ENDED:ht,STATE_RECOGNIZED:ct,STATE_CANCELLED:dt,STATE_FAILED:ut,DIRECTION_NONE:Ae,DIRECTION_LEFT:Se,DIRECTION_RIGHT:Te,DIRECTION_UP:Be,DIRECTION_DOWN:De,DIRECTION_HORIZONTAL:Ee,DIRECTION_VERTICAL:Me,DIRECTION_ALL:Le,Manager:ne,Input:I,TouchAction:V,TouchInput:z,MouseInput:P,PointerEventInput:R,TouchMouseInput:H,SingleTouchInput:O,Recognizer:j,AttrRecognizer:J,Tap:ie,Pan:K,Swipe:te,Pinch:Z,Rotate:ee,Press:Q,on:f,off:m,each:c,merge:ge,extend:ve,assign:ae,inherit:u,bindFn:p,prefixed:_}),(void 0!==n?n:"undefined"!=typeof self?self:{}).Hammer=se,void 0===(s=function(){return se}.call(t,i,t,e))||(e.exports=s)}(window,document)}}]);
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