MATH201/public/js/main.min.2dd2f7073384163751...

70 lines
45 KiB
JavaScript

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0},r.prototype.scrollToElement=function(t){return t.scrollIntoView()},r.prototype.scrollToPosition=function(t){var e,r;return e=t.x,r=t.y,window.scrollTo(e,r)},r.prototype.onScroll=function(t){return this.updatePosition({x:window.pageXOffset,y:window.pageYOffset})},r.prototype.updatePosition=function(t){var e;return this.position=t,null!=(e=this.delegate)?e.scrollPositionChanged(this.position):void 0},r}()}.call(this),function(){e.SnapshotCache=function(){function t(t){this.size=t,this.keys=[],this.snapshots={}}var r;return t.prototype.has=function(t){var e;return e=r(t),e in this.snapshots},t.prototype.get=function(t){var e;if(this.has(t))return e=this.read(t),this.touch(t),e},t.prototype.put=function(t,e){return this.write(t,e),this.touch(t),e},t.prototype.read=function(t){var e;return e=r(t),this.snapshots[e]},t.prototype.write=function(t,e){var n;return n=r(t),this.snapshots[n]=e},t.prototype.touch=function(t){var e,n;return n=r(t),e=this.keys.indexOf(n),e>-1&&this.keys.splice(e,1),this.keys.unshift(n),this.trim()},t.prototype.trim=function(){var t,e,r,n,o;for(n=this.keys.splice(this.size),o=[],t=0,r=n.length;r>t;t++)e=n[t],o.push(delete this.snapshots[e]);return o},r=function(t){return e.Location.wrap(t).toCacheKey()},t}()}.call(this),function(){var t=function(t,e){return function(){return t.apply(e,arguments)}};e.Visit=function(){function r(r,n,o){this.controller=r,this.action=o,this.performScroll=t(this.performScroll,this),this.identifier=e.uuid(),this.location=e.Location.wrap(n),this.adapter=this.controller.adapter,this.state="initialized",this.timingMetrics={}}var n;return r.prototype.start=function(){return"initialized"===this.state?(this.recordTimingMetric("visitStart"),this.state="started",this.adapter.visitStarted(this)):void 0},r.prototype.cancel=function(){var t;return"started"===this.state?(null!=(t=this.request)&&t.cancel(),this.cancelRender(),this.state="canceled"):void 0},r.prototype.complete=function(){var t;return"started"===this.state?(this.recordTimingMetric("visitEnd"),this.state="completed","function"==typeof(t=this.adapter).visitCompleted&&t.visitCompleted(this),this.controller.visitCompleted(this)):void 0},r.prototype.fail=function(){var t;return"started"===this.state?(this.state="failed","function"==typeof(t=this.adapter).visitFailed?t.visitFailed(this):void 0):void 0},r.prototype.changeHistory=function(){var t,e;return this.historyChanged?void 0:(t=this.location.isEqualTo(this.referrer)?"replace":this.action,e=n(t),this.controller[e](this.location,this.restorationIdentifier),this.historyChanged=!0)},r.prototype.issueRequest=function(){return this.shouldIssueRequest()&&null==this.request?(this.progress=0,this.request=new e.HttpRequest(this,this.location,this.referrer),this.request.send()):void 0},r.prototype.getCachedSnapshot=function(){var t;return!(t=this.controller.getCachedSnapshotForLocation(this.location))||null!=this.location.anchor&&!t.hasAnchor(this.location.anchor)||"restore"!==this.action&&!t.isPreviewable()?void 0:t},r.prototype.hasCachedSnapshot=function(){return null!=this.getCachedSnapshot()},r.prototype.loadCachedSnapshot=function(){var t,e;return(e=this.getCachedSnapshot())?(t=this.shouldIssueRequest(),this.render(function(){var r;return this.cacheSnapshot(),this.controller.render({snapshot:e,isPreview:t},this.performScroll),"function"==typeof(r=this.adapter).visitRendered&&r.visitRendered(this),t?void 0:this.complete()})):void 0},r.prototype.loadResponse=function(){return null!=this.response?this.render(function(){var t,e;return this.cacheSnapshot(),this.request.failed?(this.controller.render({error:this.response},this.performScroll),"function"==typeof(t=this.adapter).visitRendered&&t.visitRendered(this),this.fail()):(this.controller.render({snapshot:this.response},this.performScroll),"function"==typeof(e=this.adapter).visitRendered&&e.visitRendered(this),this.complete())}):void 0},r.prototype.followRedirect=function(){return this.redirectedToLocation&&!this.followedRedirect?(this.location=this.redirectedToLocation,this.controller.replaceHistoryWithLocationAndRestorationIdentifier(this.redirectedToLocation,this.restorationIdentifier),this.followedRedirect=!0):void 0},r.prototype.requestStarted=function(){var t;return this.recordTimingMetric("requestStart"),"function"==typeof(t=this.adapter).visitRequestStarted?t.visitRequestStarted(this):void 0},r.prototype.requestProgressed=function(t){var e;return this.progress=t,"function"==typeof(e=this.adapter).visitRequestProgressed?e.visitRequestProgressed(this):void 0},r.prototype.requestCompletedWithResponse=function(t,r){return this.response=t,null!=r&&(this.redirectedToLocation=e.Location.wrap(r)),this.adapter.visitRequestCompleted(this)},r.prototype.requestFailedWithStatusCode=function(t,e){return this.response=e,this.adapter.visitRequestFailedWithStatusCode(this,t)},r.prototype.requestFinished=function(){var t;return this.recordTimingMetric("requestEnd"),"function"==typeof(t=this.adapter).visitRequestFinished?t.visitRequestFinished(this):void 0},r.prototype.performScroll=function(){return this.scrolled?void 0:("restore"===this.action?this.scrollToRestoredPosition()||this.scrollToTop():this.scrollToAnchor()||this.scrollToTop(),this.scrolled=!0)},r.prototype.scrollToRestoredPosition=function(){var t,e;return t=null!=(e=this.restorationData)?e.scrollPosition:void 0,null!=t?(this.controller.scrollToPosition(t),!0):void 0},r.prototype.scrollToAnchor=function(){return null!=this.location.anchor?(this.controller.scrollToAnchor(this.location.anchor),!0):void 0},r.prototype.scrollToTop=function(){return this.controller.scrollToPosition({x:0,y:0})},r.prototype.recordTimingMetric=function(t){var e;return null!=(e=this.timingMetrics)[t]?e[t]:e[t]=(new Date).getTime()},r.prototype.getTimingMetrics=function(){return e.copyObject(this.timingMetrics)},n=function(t){switch(t){case"replace":return"replaceHistoryWithLocationAndRestorationIdentifier";case"advance":case"restore":return"pushHistoryWithLocationAndRestorationIdentifier"}},r.prototype.shouldIssueRequest=function(){return"restore"===this.action?!this.hasCachedSnapshot():!0},r.prototype.cacheSnapshot=function(){return this.snapshotCached?void 0:(this.controller.cacheSnapshot(),this.snapshotCached=!0)},r.prototype.render=function(t){return this.cancelRender(),this.frame=requestAnimationFrame(function(e){return function(){return e.frame=null,t.call(e)}}(this))},r.prototype.cancelRender=function(){return 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this.location=e.Location.wrap(window.location),this.restorationIdentifier=e.uuid(),this.history.start(),this.history.replace(this.location,this.restorationIdentifier)},r.prototype.stopHistory=function(){return this.history.stop()},r.prototype.pushHistoryWithLocationAndRestorationIdentifier=function(t,r){return this.restorationIdentifier=r,this.location=e.Location.wrap(t),this.history.push(this.location,this.restorationIdentifier)},r.prototype.replaceHistoryWithLocationAndRestorationIdentifier=function(t,r){return this.restorationIdentifier=r,this.location=e.Location.wrap(t),this.history.replace(this.location,this.restorationIdentifier)},r.prototype.historyPoppedToLocationWithRestorationIdentifier=function(t,r){var n;return this.restorationIdentifier=r,this.enabled?(n=this.getRestorationDataForIdentifier(this.restorationIdentifier),this.startVisit(t,"restore",{restorationIdentifier:this.restorationIdentifier,restorationData:n,historyChanged:!0}),this.location=e.Location.wrap(t)):this.adapter.pageInvalidated()},r.prototype.getCachedSnapshotForLocation=function(t){var e;return null!=(e=this.cache.get(t))?e.clone():void 0},r.prototype.shouldCacheSnapshot=function(){return this.view.getSnapshot().isCacheable();},r.prototype.cacheSnapshot=function(){var t,r;return this.shouldCacheSnapshot()?(this.notifyApplicationBeforeCachingSnapshot(),r=this.view.getSnapshot(),t=this.lastRenderedLocation,e.defer(function(e){return function(){return e.cache.put(t,r.clone())}}(this))):void 0},r.prototype.scrollToAnchor=function(t){var e;return(e=this.view.getElementForAnchor(t))?this.scrollToElement(e):this.scrollToPosition({x:0,y:0})},r.prototype.scrollToElement=function(t){return this.scrollManager.scrollToElement(t)},r.prototype.scrollToPosition=function(t){return this.scrollManager.scrollToPosition(t)},r.prototype.scrollPositionChanged=function(t){var e;return e=this.getCurrentRestorationData(),e.scrollPosition=t},r.prototype.render=function(t,e){return this.view.render(t,e)},r.prototype.viewInvalidated=function(){return this.adapter.pageInvalidated()},r.prototype.viewWillRender=function(t){return this.notifyApplicationBeforeRender(t)},r.prototype.viewRendered=function(){return this.lastRenderedLocation=this.currentVisit.location,this.notifyApplicationAfterRender()},r.prototype.pageLoaded=function(){return this.lastRenderedLocation=this.location,this.notifyApplicationAfterPageLoad()},r.prototype.clickCaptured=function(){return removeEventListener("click",this.clickBubbled,!1),addEventListener("click",this.clickBubbled,!1)},r.prototype.clickBubbled=function(t){var e,r,n;return this.enabled&&this.clickEventIsSignificant(t)&&(r=this.getVisitableLinkForNode(t.target))&&(n=this.getVisitableLocationForLink(r))&&this.applicationAllowsFollowingLinkToLocation(r,n)?(t.preventDefault(),e=this.getActionForLink(r),this.visit(n,{action:e})):void 0},r.prototype.applicationAllowsFollowingLinkToLocation=function(t,e){var r;return r=this.notifyApplicationAfterClickingLinkToLocation(t,e),!r.defaultPrevented},r.prototype.applicationAllowsVisitingLocation=function(t){var e;return e=this.notifyApplicationBeforeVisitingLocation(t),!e.defaultPrevented},r.prototype.notifyApplicationAfterClickingLinkToLocation=function(t,r){return e.dispatch("turbolinks:click",{target:t,data:{url:r.absoluteURL},cancelable:!0})},r.prototype.notifyApplicationBeforeVisitingLocation=function(t){return e.dispatch("turbolinks:before-visit",{data:{url:t.absoluteURL},cancelable:!0})},r.prototype.notifyApplicationAfterVisitingLocation=function(t){return e.dispatch("turbolinks:visit",{data:{url:t.absoluteURL}})},r.prototype.notifyApplicationBeforeCachingSnapshot=function(){return e.dispatch("turbolinks:before-cache")},r.prototype.notifyApplicationBeforeRender=function(t){return e.dispatch("turbolinks:before-render",{data:{newBody:t}})},r.prototype.notifyApplicationAfterRender=function(){return e.dispatch("turbolinks:render")},r.prototype.notifyApplicationAfterPageLoad=function(t){return null==t&&(t={}),e.dispatch("turbolinks:load",{data:{url:this.location.absoluteURL,timing:t}})},r.prototype.startVisit=function(t,e,r){var n;return null!=(n=this.currentVisit)&&n.cancel(),this.currentVisit=this.createVisit(t,e,r),this.currentVisit.start(),this.notifyApplicationAfterVisitingLocation(t)},r.prototype.createVisit=function(t,r,n){var o,i,s,a,u;return i=null!=n?n:{},a=i.restorationIdentifier,s=i.restorationData,o=i.historyChanged,u=new e.Visit(this,t,r),u.restorationIdentifier=null!=a?a:e.uuid(),u.restorationData=e.copyObject(s),u.historyChanged=o,u.referrer=this.location,u},r.prototype.visitCompleted=function(t){return this.notifyApplicationAfterPageLoad(t.getTimingMetrics())},r.prototype.clickEventIsSignificant=function(t){return!(t.defaultPrevented||t.target.isContentEditable||t.which>1||t.altKey||t.ctrlKey||t.metaKey||t.shiftKey)},r.prototype.getVisitableLinkForNode=function(t){return this.nodeIsVisitable(t)?e.closest(t,"a[href]:not([target]):not([download])"):void 0},r.prototype.getVisitableLocationForLink=function(t){var r;return r=new e.Location(t.getAttribute("href")),this.locationIsVisitable(r)?r:void 0},r.prototype.getActionForLink=function(t){var e;return null!=(e=t.getAttribute("data-turbolinks-action"))?e:"advance"},r.prototype.nodeIsVisitable=function(t){var r;return(r=e.closest(t,"[data-turbolinks]"))?"false"!==r.getAttribute("data-turbolinks"):!0},r.prototype.locationIsVisitable=function(t){return t.isPrefixedBy(this.view.getRootLocation())&&t.isHTML()},r.prototype.getCurrentRestorationData=function(){return this.getRestorationDataForIdentifier(this.restorationIdentifier)},r.prototype.getRestorationDataForIdentifier=function(t){var e;return null!=(e=this.restorationData)[t]?e[t]:e[t]={}},r}()}.call(this),function(){!function(){var t,e;if((t=e=document.currentScript)&&!e.hasAttribute("data-turbolinks-suppress-warning"))for(;t=t.parentNode;)if(t===document.body)return console.warn("You are loading Turbolinks from a <script> element inside the <body> element. This is probably not what you meant to do!\n\nLoad your application\u2019s JavaScript bundle inside the <head> element instead. <script> elements in <body> are evaluated with each page change.\n\nFor more information, see: https://github.com/turbolinks/turbolinks#working-with-script-elements\n\n\u2014\u2014\nSuppress this warning by adding a `data-turbolinks-suppress-warning` attribute to: %s",e.outerHTML)}()}.call(this),function(){var t,r,n;e.start=function(){return r()?(null==e.controller&&(e.controller=t()),e.controller.start()):void 0},r=function(){return null==window.Turbolinks&&(window.Turbolinks=e),n()},t=function(){var t;return t=new e.Controller,t.adapter=new e.BrowserAdapter(t),t},n=function(){return window.Turbolinks===e},n()&&e.start()}.call(this)}).call(this),"object"==typeof module&&module.exports?module.exports=e:"function"==typeof define&&define.amd&&define(e)}).call(this);;var thumbnail_mode=false
function imageMode(){const note_wrapper=document.getElementById('note-wrapper')
const images=note_wrapper.getElementsByTagName('img')
if(thumbnail_mode){var els=note_wrapper.getElementsByTagName('img')
for(var i=0,all=els.length;i<all;i++){els[i].classList.remove('thumbnail');}
thumbnail_mode=false}else{var els=note_wrapper.getElementsByTagName('img')
for(var i=0,all=els.length;i<all;i++){els[i].classList.add('thumbnail');}
thumbnail_mode=true}};loadIndex()
jQuery.fn.highlight=function(pat){function innerHighlight(node,pat){var skip=0;if(node.nodeType==3){var pos=node.data.toUpperCase().indexOf(pat);if(pos>=0){var spannode=document.createElement('span');spannode.className='highlighted';var middlebit=node.splitText(pos);var endbit=middlebit.splitText(pat.length);var middleclone=middlebit.cloneNode(true);spannode.appendChild(middleclone);middlebit.parentNode.replaceChild(spannode,middlebit);skip=1;}}else if(node.nodeType==1&&node.childNodes&&!/(script|style) /i.test(node.tagName)){for(var i=0;i<node.childNodes.length;++i){i+=innerHighlight(node.childNodes[i],pat);}}
return skip;}
return this.each(function(){innerHighlight(this,pat.toUpperCase());});};jQuery.fn.removeHighlight=function(){function newNormalize(node){for(var i=0,children=node.childNodes,nodeCount=children.length;i<nodeCount;i++){var child=children[i];if(child.nodeType==1){newNormalize(child);continue;}
if(child.nodeType!=3){continue;}
var next=child.nextSibling;if(next==null||next.nodeType!=3){continue;}
var combined_text=child.nodeValue+next.nodeValue;new_node=node.ownerDocument.createTextNode(combined_text);node.insertBefore(new_node,child);node.removeChild(child);node.removeChild(next);i--;nodeCount--;}}
return this.find("span.highlighted").each(function(){var thisParent=this.parentNode;thisParent.replaceChild(this.firstChild,this);newNormalize(thisParent);}).end();};$(function(){$('#search-input').bind('keyup change',function(ev){var searchTerm=$(this).val();$('body').removeHighlight();if(searchTerm){$('body').highlight(searchTerm);}});});var scrollTop=0
document.addEventListener("turbolinks:before-render",function(){var search_index=document.getElementById("search-results");var y=search_index.scrollTop;scrollTop=y})
document.addEventListener("turbolinks:render",function(){var search_index=document.getElementById("search-results");search_index.scrollTop=scrollTop})
document.addEventListener("turbolinks:load",function(){setNoteWrapperState()
const current=window.location.href
var els=document.getElementsByTagName("a");for(var i=0,l=els.length;i<l;i++){var el=els[i];if(el.href===current){el.classList.add("selected")}else{el.classList.remove("selected")}}})
function loadIndex(){fetchJSON(function(response){const notes=response;const search_results=document.getElementById('search-results');const tags=document.getElementById('tags');const current_note=window.location.href;notes.index.forEach(note=>{const title='<h4>'+note.title+'</h4>';const summary='<div>'+note.summary+'</div>';const permalink=note.permalink
var thumbnail=""
if(note.thumbnail===""){thumbnail=""}else{thumbnail='<img loading="lazy" src="'+note.thumbnail+'?nf_resize=fit&w=122&h=76"/><span style="display:none";>@attachments</span>'}
const tags='<span style="display:none">'+note.tags+'</span>'
var list_content;if(current_note===permalink){list_content='<a href="'+permalink+'" class="selected search-item" tabindex="0">'+title+summary+'</a>'}else{list_content='<a href="'+permalink+'" class="search-item" tabindex="0">'+title+summary+thumbnail+tags+'</a>'}
const child=document.createElement("li");child.innerHTML=list_content;search_results.append(child)});});}
function fetchJSON(callback){const requestURL='/index.json';const request=new XMLHttpRequest();request.open('GET',requestURL,true);request.responseType='json';request.onreadystatechange=function(){if(request.readyState===4&&request.status===200){callback(request.response);}};request.send(null);}
function focusTag(a){showNav()
performSearchWith(a.innerText)}
function performSearchWith(query){var filter,ul,li,a,i,txtValue;filter=query.toLowerCase();filter=filter.replace('/[.*+?^${}()|[\]\\]/g','\\$&');var re=new RegExp(filter,'g');ul=document.getElementById("search-results");li=ul.getElementsByTagName('li');for(i=0;i<li.length;i++){a=li[i].getElementsByTagName("a")[0];txtValue=a.textContent||a.innerText;if(txtValue.toLowerCase().indexOf(filter)>-1){li[i].style.display="block";}else{li[i].style.display="none";}}}
function performSearch(){var input,filter,ul,li,a,i,txtValue;input=document.getElementById('search-input');filter=input.value.toLowerCase();filter=filter.replace('/[.*+?^${}()|[\]\\]/g','\\$&');var re=new RegExp(filter,'g');ul=document.getElementById("search-results");li=ul.getElementsByTagName('li');for(i=0;i<li.length;i++){a=li[i].getElementsByTagName("a")[0];txtValue=a.textContent||a.innerText;if(txtValue.toLowerCase().indexOf(filter)>-1){li[i].style.display="block";}else{li[i].style.display="none";}}}
document.addEventListener('keydown',function(evt){if(evt.metaKey&&evt.which===75||evt.ctrlKey&&evt.which===75){document.getElementById("search-input").focus();handleNavVisibility()}
if(evt.key==="Escape"||evt.key==="Esc"|evt.keyCode===27){hideNav()}});var nav_is_visible=false;function handleNavVisibility(){if(!nav_is_visible){showNav();}else{hideNav()}}
function showNav(){document.getElementById("search").style.width="300px";document.getElementById("search").style.opacity=1;document.getElementById("search-header").style.opacity=1;document.getElementById("search-header").style.width="299px";pushNoteWrapper()
nav_is_visible=true;}
function hideNav(){document.getElementById("search").style.width="0";document.getElementById("search-header").style.width="0";document.getElementById("search").style.opacity=0;document.getElementById("search-header").style.opacity=0;document.getElementById("main").style.marginLeft="0";pullNoteWrapper()
nav_is_visible=false;}
function setNoteWrapperState(){if(nav_is_visible){pushNoteWrapper()}else{pullNoteWrapper()}}
function pushNoteWrapper(){document.getElementById("main").style.marginLeft="300px";}
function pullNoteWrapper(){document.getElementById("main").style.marginLeft="0";}
const hoverTime=300
const fetchers={}
const doc=document.implementation.createHTMLDocument('prefetch')
function fetchPage(url,success){const xhr=new XMLHttpRequest()
xhr.open('GET',url)
xhr.setRequestHeader('VND.PREFETCH','true')
xhr.setRequestHeader('Accept','text/html')
xhr.onreadystatechange=()=>{if(xhr.readyState!==XMLHttpRequest.DONE)return
if(xhr.status!==200)return
success(xhr.responseText)}
xhr.send()}
function prefetchTurbolink(url){fetchPage(url,responseText=>{doc.open()
doc.write(responseText)
doc.close()
const snapshot=Turbolinks.Snapshot.fromHTMLElement(doc.documentElement)
Turbolinks.controller.cache.put(url,snapshot)})}
function prefetch(url){if(prefetched(url))return
prefetchTurbolink(url)}
function prefetched(url){return location.href===url||Turbolinks.controller.cache.has(url)}
function prefetching(url){return!!fetchers[url]}
function cleanup(event){const element=event.target
clearTimeout(fetchers[element.href])
element.removeEventListener('mouseleave',cleanup)}
document.addEventListener('mouseover',event=>{if(!event.target.dataset.prefetch)return
const url=event.target.href
if(prefetched(url))return
if(prefetching(url))return
cleanup(event)
event.target.addEventListener('mouseleave',cleanup)
fetchers[url]=setTimeout(()=>prefetch(url),hoverTime)})