https://www.inovacne.sk/wp-content/cache/min/1/wp-content/themes/t…/js/thegem-scrollMonitor.js?ver=1790850628

1(function(factory){if(typeof define!=='undefined'&&define.amd){define([],factory)}else if(typeof module!=='undefined'&&module.exports){module.exports=factory()}else{window.scrollMonitor=factory()}})(function(){var scrollTop=function(){return window.pageYOffset||(document.documentElement&&document.documentElement.scrollTop)||document.body.scrollTop};var exports={};var watchers=[];var VISIBILITYCHANGE='visibilityChange';var ENTERVIEWPORT='enterViewport';var FULLYENTERVIEWPORT='fullyEnterViewport';var EXITVIEWPORT='exitViewport';var PARTIALLYEXITVIEWPORT='partiallyExitViewport';var LOCATIONCHANGE='locationChange';var STATECHANGE='stateChange';var eventTypes=[VISIBILITYCHANGE,ENTERVIEWPORT,FULLYENTERVIEWPORT,EXITVIEWPORT,PARTIALLYEXITVIEWPORT,LOCATIONCHANGE,STATECHANGE];var defaultOffsets={top:0,bottom:0};var getViewportHeight=function(){return window.innerHeight||document.documentElement.clientHeight};var getDocumentHeight=function(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.documentElement.clientHeight)};exports.viewportTop=null;exports.viewportBottom=null;exports.documentHeight=null;exports.viewportHeight=getViewportHeight();var previousDocumentHeight;var latestEvent;var calculateViewportI;function calculateViewport(){exports.viewportTop=scrollTop();exports.viewportBottom=exports.viewportTop+exports.viewportHeight;exports.documentHeight=getDocumentHeight();if(exports.documentHeight!==previousDocumentHeight){calculateViewportI=watchers.length;while(calculateViewportI--){watchers[calculateViewportI].recalculateLocation()}
2previousDocumentHeight=exports.documentHeight}}
3function recalculateWatchLocationsAndTrigger(){exports.viewportHeight=getViewportHeight();calculateViewport();updateAndTriggerWatchers()}
4var recalculateAndTriggerTimer;function debouncedRecalcuateAndTrigger(){clearTimeout(recalculateAndTriggerTimer);recalculateAndTriggerTimer=setTimeout(recalculateWatchLocationsAndTrigger,100)}
5var updateAndTriggerWatchersI;function updateAndTriggerWatchers(){updateAndTriggerWatchersI=watchers.length;var i=0;while(i<updateAndTriggerWatchersI){watchers[i].update();i++}
6updateAndTriggerWatchersI=watchers.length;var j=0,newLength;while(j<updateAndTriggerWatchersI){watchers[j].triggerCallbacks();newLength=watchers.length;if(newLength<updateAndTriggerWatchersI){j-=updateAndTriggerWatchersI-newLength}
7updateAndTriggerWatchersI=newLength;j++}}
8function ElementWatcher(watchItem,offsets){var self=this;this.watchItem=watchItem;this.uid=Math.random().toString(36).substring(8);if(!offsets){this.offsets=defaultOffsets}else if(offsets===+offsets){this.offsets={top:offsets,bottom:offsets}}else{this.offsets={top:offsets.top||defaultOffsets.top,bottom:offsets.bottom||defaultOffsets.bottom}}
9this.callbacks={};for(var i=0,j=eventTypes.length;i<j;i++){self.callbacks[eventTypes[i]]=[]}
10this.locked=!1;var wasInViewport;var wasFullyInViewport;var wasAboveViewport;var wasBelowViewport;var listenerToTriggerListI;var listener;function triggerCallbackArray(listeners){if(listeners.length===0){return}
11listenerToTriggerListI=listeners.length;while(listenerToTriggerListI--){listener=listeners[listenerToTriggerListI];listener.callback.call(self,latestEvent);if(listener.isOne){listeners.splice(listenerToTriggerListI,1)}}}
12this.triggerCallbacks=function triggerCallbacks(){if(this.isInViewport&&!wasInViewport){triggerCallbackArray(this.callbacks[ENTERVIEWPORT])}
13if(this.isFullyInViewport&&!wasFullyInViewport){triggerCallbackArray(this.callbacks[FULLYENTERVIEWPORT])}
14if(this.isAboveViewport!==wasAboveViewport&&this.isBelowViewport!==wasBelowViewport){triggerCallbackArray(this.callbacks[VISIBILITYCHANGE]);if(!wasFullyInViewport&&!this.isFullyInViewport){triggerCallbackArray(this.callbacks[FULLYENTERVIEWPORT]);triggerCallbackArray(this.callbacks[PARTIALLYEXITVIEWPORT])}
15if(!wasInViewport&&!this.isInViewport){triggerCallbackArray(this.callbacks[ENTERVIEWPORT]);triggerCallbackArray(this.callbacks[EXITVIEWPORT])}}
16if(!this.isFullyInViewport&&wasFullyInViewport){triggerCallbackArray(this.callbacks[PARTIALLYEXITVIEWPORT])}
17if(!this.isInViewport&&wasInViewport){triggerCallbackArray(this.callbacks[EXITVIEWPORT])}
18if(this.isInViewport!==wasInViewport){triggerCallbackArray(this.callbacks[VISIBILITYCHANGE])}
19switch(!0){case wasInViewport!==this.isInViewport:case wasFullyInViewport!==this.isFullyInViewport:case wasAboveViewport!==this.isAboveViewport:case wasBelowViewport!==this.isBelowViewport:triggerCallbackArray(this.callbacks[STATECHANGE])}
20wasInViewport=this.isInViewport;wasFullyInViewport=this.isFullyInViewport;wasAboveViewport=this.isAboveViewport;wasBelowViewport=this.isBelowViewport};this.recalculateLocation=function(){if(this.locked){return}
21var previousTop=this.top;var previousBottom=this.bottom;if(this.watchItem.nodeName){var cachedDisplay=this.watchItem.style.display;

21if(cachedDisplay==='none'){this.watchItem.style.display=''}
22var boundingRect=this.watchItem.getBoundingClientRect();this.top=boundingRect.top+exports.viewportTop;this.bottom=boundingRect.bottom+exports.viewportTop;if(cachedDisplay==='none'){this.watchItem.style.display=cachedDisplay}}else if(this.watchItem===+this.watchItem){if(this.watchItem>0){this.top=this.bottom=this.watchItem}else{this.top=this.bottom=exports.documentHeight-this.watchItem}}else{this.top=this.watchItem.top;this.bottom=this.watchItem.bottom}
23this.top-=this.offsets.top;this.bottom+=this.offsets.bottom;this.height=this.bottom-this.top;if((previousTop!==undefined||previousBottom!==undefined)&&(this.top!==previousTop||this.bottom!==previousBottom)){triggerCallbackArray(this.callbacks[LOCATIONCHANGE])}};this.recalculateLocation();this.update();wasInViewport=this.isInViewport;wasFullyInViewport=this.isFullyInViewport;wasAboveViewport=this.isAboveViewport;wasBelowViewport=this.isBelowViewport}
24ElementWatcher.prototype={on:function(event,callback,isOne){switch(!0){case event===VISIBILITYCHANGE&&!this.isInViewport&&this.isAboveViewport:case event===ENTERVIEWPORT&&this.isInViewport:case event===FULLYENTERVIEWPORT&&this.isFullyInViewport:case event===EXITVIEWPORT&&this.isAboveViewport&&!this.isInViewport:case event===PARTIALLYEXITVIEWPORT&&this.isAboveViewport:callback.call(this,latestEvent);if(isOne){return}}
25if(this.callbacks[event]){this.callbacks[event].push({callback:callback,isOne:isOne||!1})}else{throw new Error('Tried to add a scroll monitor listener of type '+event+'. Your options are: '+eventTypes.join(', '))}},off:function(event,callback){if(this.callbacks[event]){for(var i=0,item;item=this.callbacks[event][i];i++){if(item.callback===callback){this.callbacks[event].splice(i,1);break}}}else{throw new Error('Tried to remove a scroll monitor listener of type '+event+'. Your options are: '+eventTypes.join(', '))}},one:function(event,callback){this.on(event,callback,!0)},recalculateSize:function(){this.height=this.watchItem.offsetHeight+this.offsets.top+this.offsets.bottom;this.bottom=this.top+this.height},update:function(){this.isAboveViewport=this.top<exports.viewportTop;this.isBelowViewport=this.bottom>exports.viewportBottom;this.isInViewport=(this.top<=exports.viewportBottom&&this.bottom>=exports.viewportTop);this.isFullyInViewport=(this.top>=exports.viewportTop&&this.bottom<=exports.viewportBottom)||(this.isAboveViewport&&this.isBelowViewport)},destroy:function(){var index=-1,self=this;for(var i=0;i<watchers.length;i++){if(this.uid==watchers[i].uid){index=i;break}}
26if(index==-1){index=watchers.indexOf(this)}
27watchers.splice(index,1);for(var i=0,j=eventTypes.length;i<j;i++){self.callbacks[eventTypes[i]].length=0}},lock:function(){this.locked=!0},unlock:function(){this.locked=!1}};var eventHandlerFactory=function(type){return function(callback,isOne){this.on.call(this,type,callback,isOne)}};for(var i=0,j=eventTypes.length;i<j;i++){var type=eventTypes[i];ElementWatcher.prototype[type]=eventHandlerFactory(type)}
28try{calculateViewport()}catch(e){try{window.$(calculateViewport)}catch(e){throw new Error('If you must put scrollMonitor in the <head>, you must use jQuery.')}}
29function scrollMonitorListener(event){latestEvent=event;calculateViewport();updateAndTriggerWatchers()}
30if(window.addEventListener){window.addEventListener('scroll',scrollMonitorListener);window.addEventListener('resize',debouncedRecalcuateAndTrigger)}else{window.attachEvent('onscroll',scrollMonitorListener);window.attachEvent('onresize',debouncedRecalcuateAndTrigger)}
31exports.beget=exports.create=function(element,offsets){if(typeof element==='string'){element=document.querySelector(element)}else if(element&&element.length>0){element=element[0]}
32var watcher=new ElementWatcher(element,offsets);watchers.push(watcher);watcher.update();return watcher};exports.update=function(){latestEvent=null;calculateViewport();updateAndTriggerWatchers()};exports.recalculateLocations=function(){exports.documentHeight=0;exports.update()};return exports})