build-polyfills.js

var t,e,n,o,r;t=window,e=document,!t.getSelection&&e.selection&&(n=null,t.getSelection=function(){return null!=n?n:n=new o},e.createRange=function(){return new Range},e.attachEvent("onkeydown",(function(){return t.getSelection().setRangeAt(0,new Range(!0))})),e.attachEvent("onselectionchange",(function(){var n,o;return t.getSelection().setRangeAt(0,new Range(!0)),"INPUT"===(n=e.selection.createRange().parentElement()).tagName||"TEXTAREA"===n.tagName?(o=t.getSelection().getRangeAt(0),n.selectionStart=o.selectionStart,n.selectionEnd=o.selectionEnd):void 0})),t.Range=function(){function t(t){t?this.range=e.selection.createRange():(this.range=e.body.createTextRange(),this.collapse(!0)),this.init()}return t.END_TO_END="EndToEnd",t.END_TO_START="EndToStart",t.START_TO_END="StartToEnd",t.START_TO_START="StartToStart",t.prototype.init=function(){var t,e,n,o,i,a;return e=this.range.parentElement(),this.commonAncestorContainer=e,this.collapsed=0===this.compareBoundaryPoints("StartToEnd",this),(a=this.range.duplicate()).moveToElementText(e),t=this.range.text.length>0?0:1,i=r.findLength("StartToStart",a,this.range),n=r.findNodeByPos(e,i,t),this.startContainer=n.el,this.startOffset=n.offset,o=r.findLength("StartToEnd",a,this.range),n=r.findNodeByPos(e,o,1),this.endContainer=n.el,this.endOffset=n.offset,this.selectionStart=r.findLength("StartToStart",a,this.range,!0),this.selectionEnd=r.findLength("StartToEnd",a,this.range,!0)},t.prototype.select=function(){return this.range.select()},t.prototype.setStart=function(t,e){var n,o;return r.getText(t).length>=e&&e>=0?(o=this.range.duplicate(),3===t.nodeType&&(n=r.findPosFromNode(t),o.moveToElementText(t.parentNode),o.moveStart("character",n+e)),-1===this.range.compareEndPoints("StartToEnd",o)&&this.range.setEndPoint("EndToStart",o),this.range.setEndPoint("StartToStart",o)):void 0},t.prototype.setEnd=function(t,e){var n,o;return r.getText(t).length>=e&&e>=0?(o=this.range.duplicate(),3===t.nodeType&&(n=r.findPosFromNode(t),o.moveToElementText(t.parentNode),o.moveStart("character",n+e)),this.range.setEndPoint("EndToStart",o)):void 0},t.prototype.selectNodeContents=function(t){return this.range.moveToElementText(t)},t.prototype.collapse=function(t){return t?this.range.setEndPoint("EndToStart",this.range):this.range.setEndPoint("StartToEnd",this.range)},t.prototype.compareBoundaryPoints=function(t,e){return this.range.compareEndPoints(t,e.range)},t.prototype.cloneRange=function(){var e;return(e=new t).range=this.range.duplicate(),e.init(),e},t.prototype.detach=function(){return delete this.range},t.prototype.getBoundingClientRect=function(){var e;return{width:(e=this.range.getBoundingClientRect()).right-e.left,height:e.bottom-e.top,left:e.left,right:e.right,bottom:e.bottom,top:e.top}},t.prototype.toString=function(){return this.range.text||""},t}(),o=function(){function t(){this.selection=e.selection,this.ranges=[],this.init()}return t.prototype.init=function(){var t,e,n,o,r;return this.rangeCount=this.ranges.length,this.rangeCount?(e=this.ranges[0],null==this.prev&&(this.prev=e),0===e.compareBoundaryPoints(Range.END_TO_END,this.prev)?(t=(o=["end","start"])[0],n=o[1]):(t=(r=["start","end"])[0],n=r[1]),this.anchorNode=e[t+"Container"],this.anchorOffset=e[t+"Offset"],this.focusNode=e[n+"Container"],this.focusOffset=e[n+"Offset"],this.isCollapsed=this.anchorNode===this.focusNode):void 0},t.prototype.getRangeAt=function(t){return this.ranges[t]},t.prototype.setRangeAt=function(t,e){return this.prev=this.ranges[t],this.ranges[t]=e,this.init()},t.prototype.removeAllRanges=function(){return this.ranges=[],this.init()},t.prototype.addRange=function(t){var e,n,o,r,i;for(this.ranges.push(t),this.init(),i=[],n=0,o=(r=this.ranges).length;o>n;n++)e=r[n],i.push(e.select());return i},t.prototype.deleteFromDocument=function(){return this.selection.clear()},t.prototype.toString=function(){return this.ranges[0].toString()},t}(),r={convertLineBreaks:function(t){return t.replace(/\r\n/g,"\n")},stripLineBreaks:function(t){return t.replace(/\r\n/g,"")},getText:function(t){return t.innerText||t.nodeValue},findLength:function(t,e,n,o){var i;switch(i=e.duplicate(),t){case"StartToStart":i.setEndPoint("EndToStart",n);break;case"StartToEnd":i.setEndPoint("EndToEnd",n)}return o?r.convertLineBreaks(i.text).length:r.stripLineBreaks(i.text).length},findNodeByPos:function(t,e,n){var o,r;return null==n&&(n=0),(o=function(t,e,n,r){var i,a,s,h,c;for(c=[],a=0,s=(h=t.childNodes).length;s>a;a++)if(i=h[a],!r.found)if(3===i.nodeType){if(r.length+i.length+n>e){r.found=!0,r.el=i,r.offset=e-r.length;break}c.push(r.length+=i.length)}else c.push(o(i,e,n,r));return c})(t,e,n,r={length:0,el:t,offset:0}),r},findPosFromNode:function(t){var e,n,o;return n={pos:0},o=t.parentNode,(e=function(t,n,o){var r,i,a,s,h;for(h=[],i=0,a=(s=t.childNodes).length;a>i;i++)if(r=s[i],!o.found){if(r===n){o.found=!0;break}3===r.nodeType?h.push(o.pos+=r.length):r.hasChildNodes()?h.push(e(r,n,o)):h.push(void 0)}return h})(o,t,n),n.pos}}),"NodeList"in window&&!NodeList.prototype.forEach&&(NodeList.prototype.forEach=function(callback,thisArg){thisArg=thisArg||window;for(var i=0;i<this.length;i++)callback.call(thisArg,this[i],i,this)}),Object.entries||(Object.entries=function(obj){for(var ownProps=Object.keys(obj),i=ownProps.length,resArray=new Array(i);i--;)resArray[i]=[ownProps[i],obj[ownProps[i]]];return resArray}),Object.is||Object.defineProperty(Object,"is",{value:function(x,y){return x===y?0!==x||1/x==1/y:x!=x&&y!=y}}),Array.prototype.find||Object.defineProperty(Array.prototype,"find",{value:function(predicate){if(null==this)throw new TypeError('"this" is null or not defined');var o=Object(this),len=o.length>>>0;if("function"!=typeof predicate)throw new TypeError("predicate must be a function");for(var thisArg=arguments[1],k=0;k<len;){var kValue=o[k];if(predicate.call(thisArg,kValue,k,o))return kValue;k++}}}),String.prototype.includes||(String.prototype.includes=function(search,start){return"number"!=typeof start&&(start=0),!(start+search.length>this.length)&&-1!==this.indexOf(search,start)}),Array.prototype.includes||Object.defineProperty(Array.prototype,"includes",{value:function(searchElement,fromIndex){if(null==this)throw new TypeError('"this" is null or not defined');var o=Object(this),len=o.length>>>0;if(0===len)return!1;var x,y,n=0|fromIndex,k=Math.max(n>=0?n:len-Math.abs(n),0);for(;k<len;){if((x=o[k])===(y=searchElement)||"number"==typeof x&&"number"==typeof y&&isNaN(x)&&isNaN(y))return!0;k++}return!1}}),function(){if("object"==typeof window)if("IntersectionObserver"in window&&"IntersectionObserverEntry"in window&&"intersectionRatio"in window.IntersectionObserverEntry.prototype)"isIntersecting"in window.IntersectionObserverEntry.prototype||Object.defineProperty(window.IntersectionObserverEntry.prototype,"isIntersecting",{get:function(){return this.intersectionRatio>0}});else{var document=function(startDoc){for(var doc=window.document,frame=getFrameElement(doc);frame;)frame=getFrameElement(doc=frame.ownerDocument);return doc}(),registry=[],crossOriginUpdater=null,crossOriginRect=null;IntersectionObserver.prototype.THROTTLE_TIMEOUT=100,IntersectionObserver.prototype.POLL_INTERVAL=null,IntersectionObserver.prototype.USE_MUTATION_OBSERVER=!0,IntersectionObserver._setupCrossOriginUpdater=function(){return crossOriginUpdater||(crossOriginUpdater=function(boundingClientRect,intersectionRect){crossOriginRect=boundingClientRect&&intersectionRect?convertFromParentRect(boundingClientRect,intersectionRect):{top:0,bottom:0,left:0,right:0,width:0,height:0},registry.forEach((function(observer){observer._checkForIntersections()}))}),crossOriginUpdater},IntersectionObserver._resetCrossOriginUpdater=function(){crossOriginUpdater=null,crossOriginRect=null},IntersectionObserver.prototype.observe=function(target){if(!this._observationTargets.some((function(item){return item.element==target}))){if(!target||1!=target.nodeType)throw new Error("target must be an Element");this._registerInstance(),this._observationTargets.push({element:target,entry:null}),this._monitorIntersections(target.ownerDocument),this._checkForIntersections()}},IntersectionObserver.prototype.unobserve=function(target){this._observationTargets=this._observationTargets.filter((function(item){return item.element!=target})),this._unmonitorIntersections(target.ownerDocument),0==this._observationTargets.length&&this._unregisterInstance()},IntersectionObserver.prototype.disconnect=function(){this._observationTargets=[],this._unmonitorAllIntersections(),this._unregisterInstance()},IntersectionObserver.prototype.takeRecords=function(){var records=this._queuedEntries.slice();return this._queuedEntries=[],records},IntersectionObserver.prototype._initThresholds=function(opt_threshold){var threshold=opt_threshold||[0];return Array.isArray(threshold)||(threshold=[threshold]),threshold.sort().filter((function(t,i,a){if("number"!=typeof t||isNaN(t)||t<0||t>1)throw new Error("threshold must be a number between 0 and 1 inclusively");return t!==a[i-1]}))},IntersectionObserver.prototype._parseRootMargin=function(opt_rootMargin){var margins=(opt_rootMargin||"0px").split(/\s+/).map((function(margin){var parts=/^(-?\d*\.?\d+)(px|%)$/.exec(margin);if(!parts)throw new Error("rootMargin must be specified in pixels or percent");return{value:parseFloat(parts[1]),unit:parts[2]}}));return margins[1]=margins[1]||margins[0],margins[2]=margins[2]||margins[0],margins[3]=margins[3]||margins[1],margins},IntersectionObserver.prototype._monitorIntersections=function(doc){var win=doc.defaultView;if(win&&-1==this._monitoringDocuments.indexOf(doc)){var callback=this._checkForIntersections,monitoringInterval=null,domObserver=null;this.POLL_INTERVAL?monitoringInterval=win.setInterval(callback,this.POLL_INTERVAL):(addEvent(win,"resize",callback,!0),addEvent(doc,"scroll",callback,!0),this.USE_MUTATION_OBSERVER&&"MutationObserver"in win&&(domObserver=new win.MutationObserver(callback)).observe(doc,{attributes:!0,childList:!0,characterData:!0,subtree:!0})),this._monitoringDocuments.push(doc),this._monitoringUnsubscribes.push((function(){var win=doc.defaultView;win&&(monitoringInterval&&win.clearInterval(monitoringInterval),removeEvent(win,"resize",callback,!0)),removeEvent(doc,"scroll",callback,!0),domObserver&&domObserver.disconnect()}));var rootDoc=this.root&&(this.root.ownerDocument||this.root)||document;if(doc!=rootDoc){var frame=getFrameElement(doc);frame&&this._monitorIntersections(frame.ownerDocument)}}},IntersectionObserver.prototype._unmonitorIntersections=function(doc){var index=this._monitoringDocuments.indexOf(doc);if(-1!=index){var rootDoc=this.root&&(this.root.ownerDocument||this.root)||document;if(!this._observationTargets.some((function(item){var itemDoc=item.element.ownerDocument;if(itemDoc==doc)return!0;for(;itemDoc&&itemDoc!=rootDoc;){var frame=getFrameElement(itemDoc);if((itemDoc=frame&&frame.ownerDocument)==doc)return!0}return!1}))){var unsubscribe=this._monitoringUnsubscribes[index];if(this._monitoringDocuments.splice(index,1),this._monitoringUnsubscribes.splice(index,1),unsubscribe(),doc!=rootDoc){var frame=getFrameElement(doc);frame&&this._unmonitorIntersections(frame.ownerDocument)}}}},IntersectionObserver.prototype._unmonitorAllIntersections=function(){var unsubscribes=this._monitoringUnsubscribes.slice(0);this._monitoringDocuments.length=0,this._monitoringUnsubscribes.length=0;for(var i=0;i<unsubscribes.length;i++)unsubscribes[i]()},IntersectionObserver.prototype._checkForIntersections=function(){if(this.root||!crossOriginUpdater||crossOriginRect){var rootIsInDom=this._rootIsInDom(),rootRect=rootIsInDom?this._getRootRect():{top:0,bottom:0,left:0,right:0,width:0,height:0};this._observationTargets.forEach((function(item){var target=item.element,targetRect=getBoundingClientRect(target),rootContainsTarget=this._rootContainsTarget(target),oldEntry=item.entry,intersectionRect=rootIsInDom&&rootContainsTarget&&this._computeTargetAndRootIntersection(target,targetRect,rootRect),rootBounds=null;this._rootContainsTarget(target)?crossOriginUpdater&&!this.root||(rootBounds=rootRect):rootBounds={top:0,bottom:0,left:0,right:0,width:0,height:0};var newEntry=item.entry=new IntersectionObserverEntry({time:window.performance&&performance.now&&performance.now(),target,boundingClientRect:targetRect,rootBounds,intersectionRect});oldEntry?rootIsInDom&&rootContainsTarget?this._hasCrossedThreshold(oldEntry,newEntry)&&this._queuedEntries.push(newEntry):oldEntry&&oldEntry.isIntersecting&&this._queuedEntries.push(newEntry):this._queuedEntries.push(newEntry)}),this),this._queuedEntries.length&&this._callback(this.takeRecords(),this)}},IntersectionObserver.prototype._computeTargetAndRootIntersection=function(target,targetRect,rootRect){if("none"!=window.getComputedStyle(target).display){for(var rect1,rect2,top,bottom,left,right,width,height,intersectionRect=targetRect,parent=getParentNode(target),atRoot=!1;!atRoot&&parent;){var parentRect=null,parentComputedStyle=1==parent.nodeType?window.getComputedStyle(parent):{};if("none"==parentComputedStyle.display)return null;if(parent==this.root||9==parent.nodeType)if(atRoot=!0,parent==this.root||parent==document)crossOriginUpdater&&!this.root?!crossOriginRect||0==crossOriginRect.width&&0==crossOriginRect.height?(parent=null,parentRect=null,intersectionRect=null):parentRect=crossOriginRect:parentRect=rootRect;else{var frame=getParentNode(parent),frameRect=frame&&getBoundingClientRect(frame),frameIntersect=frame&&this._computeTargetAndRootIntersection(frame,frameRect,rootRect);frameRect&&frameIntersect?(parent=frame,parentRect=convertFromParentRect(frameRect,frameIntersect)):(parent=null,intersectionRect=null)}else{var doc=parent.ownerDocument;parent!=doc.body&&parent!=doc.documentElement&&"visible"!=parentComputedStyle.overflow&&(parentRect=getBoundingClientRect(parent))}if(parentRect&&(rect1=parentRect,rect2=intersectionRect,top=void 0,bottom=void 0,left=void 0,right=void 0,width=void 0,height=void 0,top=Math.max(rect1.top,rect2.top),bottom=Math.min(rect1.bottom,rect2.bottom),left=Math.max(rect1.left,rect2.left),right=Math.min(rect1.right,rect2.right),height=bottom-top,intersectionRect=(width=right-left)>=0&&height>=0&&{top,bottom,left,right,width,height}||null),!intersectionRect)break;parent=parent&&getParentNode(parent)}return intersectionRect}},IntersectionObserver.prototype._getRootRect=function(){var rootRect;if(this.root&&!isDoc(this.root))rootRect=getBoundingClientRect(this.root);else{var doc=isDoc(this.root)?this.root:document,html=doc.documentElement,body=doc.body;rootRect={top:0,left:0,right:html.clientWidth||body.clientWidth,width:html.clientWidth||body.clientWidth,bottom:html.clientHeight||body.clientHeight,height:html.clientHeight||body.clientHeight}}return this._expandRectByRootMargin(rootRect)},IntersectionObserver.prototype._expandRectByRootMargin=function(rect){var margins=this._rootMarginValues.map((function(margin,i){return"px"==margin.unit?margin.value:margin.value*(i%2?rect.width:rect.height)/100})),newRect={top:rect.top-margins[0],right:rect.right+margins[1],bottom:rect.bottom+margins[2],left:rect.left-margins[3]};return newRect.width=newRect.right-newRect.left,newRect.height=newRect.bottom-newRect.top,newRect},IntersectionObserver.prototype._hasCrossedThreshold=function(oldEntry,newEntry){var oldRatio=oldEntry&&oldEntry.isIntersecting?oldEntry.intersectionRatio||0:-1,newRatio=newEntry.isIntersecting?newEntry.intersectionRatio||0:-1;if(oldRatio!==newRatio)for(var i=0;i<this.thresholds.length;i++){var threshold=this.thresholds[i];if(threshold==oldRatio||threshold==newRatio||threshold<oldRatio!=threshold<newRatio)return!0}},IntersectionObserver.prototype._rootIsInDom=function(){return!this.root||containsDeep(document,this.root)},IntersectionObserver.prototype._rootContainsTarget=function(target){var rootDoc=this.root&&(this.root.ownerDocument||this.root)||document;return containsDeep(rootDoc,target)&&(!this.root||rootDoc==target.ownerDocument)},IntersectionObserver.prototype._registerInstance=function(){registry.indexOf(this)<0&&registry.push(this)},IntersectionObserver.prototype._unregisterInstance=function(){var index=registry.indexOf(this);-1!=index&&registry.splice(index,1)},window.IntersectionObserver=IntersectionObserver,window.IntersectionObserverEntry=IntersectionObserverEntry}function getFrameElement(doc){try{return doc.defaultView&&doc.defaultView.frameElement||null}catch(e){return null}}function IntersectionObserverEntry(entry){this.time=entry.time,this.target=entry.target,this.rootBounds=ensureDOMRect(entry.rootBounds),this.boundingClientRect=ensureDOMRect(entry.boundingClientRect),this.intersectionRect=ensureDOMRect(entry.intersectionRect||{top:0,bottom:0,left:0,right:0,width:0,height:0}),this.isIntersecting=!!entry.intersectionRect;var targetRect=this.boundingClientRect,targetArea=targetRect.width*targetRect.height,intersectionRect=this.intersectionRect,intersectionArea=intersectionRect.width*intersectionRect.height;this.intersectionRatio=targetArea?Number((intersectionArea/targetArea).toFixed(4)):this.isIntersecting?1:0}function IntersectionObserver(callback,opt_options){var options=opt_options||{};if("function"!=typeof callback)throw new Error("callback must be a function");if(options.root&&1!=options.root.nodeType&&9!=options.root.nodeType)throw new Error("root must be a Document or Element");this._checkForIntersections=function throttle(fn,timeout){var timer=null;return function(){timer||(timer=setTimeout((function(){fn(),timer=null}),timeout))}}(this._checkForIntersections.bind(this),this.THROTTLE_TIMEOUT),this._callback=callback,this._observationTargets=[],this._queuedEntries=[],this._rootMarginValues=this._parseRootMargin(options.rootMargin),this.thresholds=this._initThresholds(options.threshold),this.root=options.root||null,this.rootMargin=this._rootMarginValues.map((function(margin){return margin.value+margin.unit})).join(" "),this._monitoringDocuments=[],this._monitoringUnsubscribes=[]}function addEvent(node,event,fn,opt_useCapture){"function"==typeof node.addEventListener?node.addEventListener(event,fn,opt_useCapture||!1):"function"==typeof node.attachEvent&&node.attachEvent("on"+event,fn)}function removeEvent(node,event,fn,opt_useCapture){"function"==typeof node.removeEventListener?node.removeEventListener(event,fn,opt_useCapture||!1):"function"==typeof node.detatchEvent&&node.detatchEvent("on"+event,fn)}function getBoundingClientRect(el){var rect;try{rect=el.getBoundingClientRect()}catch(err){}return rect?(rect.width&&rect.height||(rect={top:rect.top,right:rect.right,bottom:rect.bottom,left:rect.left,width:rect.right-rect.left,height:rect.bottom-rect.top}),rect):{top:0,bottom:0,left:0,right:0,width:0,height:0}}function ensureDOMRect(rect){return!rect||"x"in rect?rect:{top:rect.top,y:rect.top,bottom:rect.bottom,left:rect.left,x:rect.left,right:rect.right,width:rect.width,height:rect.height}}function convertFromParentRect(parentBoundingRect,parentIntersectionRect){var top=parentIntersectionRect.top-parentBoundingRect.top,left=parentIntersectionRect.left-parentBoundingRect.left;return{top,left,height:parentIntersectionRect.height,width:parentIntersectionRect.width,bottom:top+parentIntersectionRect.height,right:left+parentIntersectionRect.width}}function containsDeep(parent,child){for(var node=child;node;){if(node==parent)return!0;node=getParentNode(node)}return!1}function getParentNode(node){var parent=node.parentNode;return 9==node.nodeType&&node!=document?getFrameElement(node):(parent&&parent.assignedSlot&&(parent=parent.assignedSlot.parentNode),parent&&11==parent.nodeType&&parent.host?parent.host:parent)}function isDoc(node){return node&&9===node.nodeType}}();