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https://rickieleejones.com/wp-content/themes/bridge/js/plugins/skrollr.js?ver=7.0.5

js rickieleejones.com collected 2026-10-02 07:47:45 UTC 26,695 bytes, 8 lines download raw bytes

1/*!
2 * skrollr core
3 *
4 * Alexander Prinzhorn - https://github.com/Prinzhorn/skrollr
5 *
6 * Free to use under terms of MIT license
7 */
8(function(window,document,undefined){'use strict';var skrollr=window.skrollr={get:function(){return _instance},init:function(options){return _instance||new Skrollr(options)},VERSION:'0.6.10'};var hasProp=Object.prototype.hasOwnProperty;var Math=window.Math;var getStyle=window.getComputedStyle;var documentElement;var body;var EVENT_TOUCHSTART='touchstart';var EVENT_TOUCHMOVE='touchmove';var EVENT_TOUCHCANCEL='touchcancel';var EVENT_TOUCHEND='touchend';var SKROLLABLE_CLASS='skrollable';var SKROLLABLE_BEFORE_CLASS=SKROLLABLE_CLASS+'-before';var SKROLLABLE_BETWEEN_CLASS=SKROLLABLE_CLASS+'-between';var SKROLLABLE_AFTER_CLASS=SKROLLABLE_CLASS+'-after';var SKROLLR_CLASS='skrollr';var NO_SKROLLR_CLASS='no-'+SKROLLR_CLASS;var SKROLLR_DESKTOP_CLASS=SKROLLR_CLASS+'-desktop';var SKROLLR_MOBILE_CLASS=SKROLLR_CLASS+'-mobile';var DEFAULT_EASING='linear';var DEFAULT_DURATION=1000;var MOBILE_DECELERATION=0.0006;var DEFAULT_SMOOTH_SCROLLING_DURATION=200;var ANCHOR_START='start';var ANCHOR_END='end';var ANCHOR_CENTER='center';var ANCHOR_BOTTOM='bottom';var SKROLLABLE_ID_DOM_PROPERTY='___skrollable_id';var rxTrim=/^\s+|\s+$/g;var rxKeyframeAttribute=/^data(?:-(_\w+))?(?:-?(-?\d+))?(?:-?(start|end|top|center|bottom))?(?:-?(top|center|bottom))?$/;var rxPropValue=/\s*([\w\-\[\]]+)\s*:\s*(.+?)\s*(?:;|$)/gi;var rxPropEasing=/^([a-z\-]+)\[(\w+)\]$/;var rxCamelCase=/-([a-z])/g;var rxCamelCaseFn=function(str,letter){return letter.toUpperCase()};
8var rxNumericValue=/[\-+]?[\d]*\.?[\d]+/g;var rxInterpolateString=/\{\?\}/g;var rxRGBAIntegerColor=/rgba?\(\s*-?\d+\s*,\s*-?\d+\s*,\s*-?\d+/g;var rxGradient=/[a-z\-]+-gradient/g;var theCSSPrefix='';var theDashedCSSPrefix='';var detectCSSPrefix=function(){var rxPrefixes=/^(?:O|Moz|webkit|ms)|(?:-(?:o|moz|webkit|ms)-)/;if(!getStyle){return}var style=getStyle(body,null);for(var k in style){theCSSPrefix=(k.match(rxPrefixes)||(+k==k&&style[k].match(rxPrefixes)));if(theCSSPrefix){break}}if(!theCSSPrefix){theCSSPrefix=theDashedCSSPrefix='';return}theCSSPrefix=theCSSPrefix[0];if(theCSSPrefix.slice(0,1)==='-'){theDashedCSSPrefix=theCSSPrefix;theCSSPrefix=({'-webkit-':'webkit','-moz-':'Moz','-ms-':'ms','-o-':'O'})[theCSSPrefix]}else{theDashedCSSPrefix='-'+theCSSPrefix.toLowerCase()+'-'}};var polyfillRAF=function(){var requestAnimFrame=window.requestAnimationFrame||window[theCSSPrefix.toLowerCase()+'RequestAnimationFrame'];var lastTime=_now();if(_isMobile||!requestAnimFrame){requestAnimFrame=function(callback){var deltaTime=_now()-lastTime;var delay=Math.max(0,1000/60-deltaTime);window.setTimeout(function(){lastTime=_now();callback()},delay)}}return requestAnimFrame};var easings={begin:function(){return 0},end:function(){return 1},linear:function(p){return p},quadratic:function(p){return p*p},cubic:function(p){return p*p*p},swing:function(p){return(-Math.cos(p*Math.PI)/2)+0.5},sqrt:function(p){return Math.sqrt(p)},outCubic:function(p){return(Math.pow((p-1),3)+1)},bounce:function(p){var a;if(p<=0.5083){a=3}else if(p<=0.8489){a=9}else if(p<=0.96208){a=27}else if(p<=0.99981){a=91}else{return 1}return 1-Math.abs(3*Math.cos(p*a*1.028)/a)}};function Skrollr(options){documentElement=document.documentElement;body=document.body;detectCSSPrefix();_instance=this;options=options||{};_constants=options.constants||{};if(options.easing){for(var e in options.easing){easings[e]=options.easing[e]}}_edgeStrategy=options.edgeStrategy||'set';_listeners={beforerender:options.beforerender,render:options.render};_forceHeight=options.forceHeight!==false;if(_forceHeight){_scale=options.scale||1}_smoothScrollingEnabled=options.smoothScrolling!==false;_smoothScrollingDuration=options.smoothScrollingDuration||DEFAULT_SMOOTH_SCROLLING_DURATION;_smoothScrolling={targetTop:_instance.getScrollTop()};_isMobile=((options.mobileCheck||function(){return(/Android|iPhone|iPad|iPod|BlackBerry|Windows Phone/i).test(navigator.userAgent||navigator.vendor||window.opera)})());if(_isMobile){_skrollrBody=document.getElementById('skrollr-body');if(_skrollrBody){_detect3DTransforms()}_initMobile();_updateClass(documentElement,[SKROLLR_CLASS,SKROLLR_MOBILE_CLASS],[NO_SKROLLR_CLASS])}else{_updateClass(documentElement,[SKROLLR_CLASS,SKROLLR_DESKTOP_CLASS],[NO_SKROLLR_CLASS])}_instance.refresh();_addEvent(window,'resize orientationchange',function(){var width=documentElement.clientWidth;var height=documentElement.clientHeight;if(height!==_lastViewportHeight||width!==_lastViewportWidth){_lastViewportHeight=height;_lastViewportWidth=width;_requestReflow=true}});var requestAnimFrame=polyfillRAF();(function animloop(){_render();requestAnimFrame(animloop)}());return _instance}Skrollr.prototype.refresh=function(elements){var elementIndex;var elementsLength;var ignoreID=false;if(elements===undefined){ignoreID=true;_skrollables=[];_skrollableIdCounter=0;elements=document.getElementsByTagName('*')}else{elements=[].concat(elements)}elementIndex=0;elementsLength=elements.length;for(;elementIndex<elementsLength;elementIndex++){var el=elements[elementIndex];var anchorTarget=el;var keyFrames=[];var smoothScrollThis=_smoothScrollingEnabled;var edgeStrategy=_edgeStrategy;if(!el.attributes){continue}var attributeIndex=0;var attributesLength=el.attributes.length;for(;attributeIndex<attributesLength;attributeIndex++){var attr=el.attributes[attributeIndex];if(attr.name==='data-anchor-target'){anchorTarget=document.querySelector(attr.value);if(anchorTarget===null){throw'Unable to find anchor target "'+attr.value+'"';}continue}if(attr.name==='data-smooth-scrolling'){smoothScrollThis=attr.value!=='off';continue}if(attr.name==='data-edge-strategy'){edgeStrategy=attr.value;continue}var match=attr.name.match(rxKeyframeAttribute);if(match===null){continue}var constant=match[1];constant=constant&&_constants[constant.substr(1)]||0;var offset=(match[2]|0)+constant;var anchor1=match[3];var anchor2=match[4]||anchor1;var kf={offset:offset,props:attr.value,element:el};keyFrames.push(kf);if(!anchor1||anchor1===ANCHOR_START||anchor1===ANCHOR_END){kf.mode='absolute';if(anchor1===ANCHOR_END){kf.isEnd=true}else{kf.frame=offset*_scale;delete kf.offset}}else{kf.mode='relative';kf.anchors=[anchor1,anchor2]}}if(!keyFrames.length){continue}var styleAttr,classAttr;var id;if(!ignoreID&&SKROLLABLE_ID_DOM_PROPERTY in el){id=el[SKROLLABLE_ID_DOM_PROPERTY];styleAttr=_skrollables[id].styleAttr;classAttr=_skrollables[id].classAttr}else{id=(el[SKROLLABLE_ID_DOM_PROPERTY]=_skrollableIdCounter++);styleAttr=el.style.cssText;classAttr=_getClass(el)}_skrollables[id]={element:el,styleAttr:styleAttr,classAttr:classAttr,anchorTarget:anchorTarget,keyFrames:keyFrames,smoothScrolling:smoothScrollThis,edgeStrategy:edgeStrategy};_updateClass(el,[SKROLLABLE_CLASS],[])}_reflow();elementIndex=0;elementsLength=elements.length;for(;elementIndex<elementsLength;elementIndex++){var sk=_skrollables[elements[elementIndex][SKROLLABLE_ID_DOM_PROPERTY]];if(sk===undefined){continue}_parseProps(sk);_fillProps(sk)}return _instance};Skrollr.prototype.relativeToAbsolute=function(element,viewportAnchor,elementAnchor){var viewportHe
8ight=documentElement.clientHeight;var box=element.getBoundingClientRect();var absolute=box.top;var boxHeight=box.bottom-box.top;if(viewportAnchor===ANCHOR_BOTTOM){absolute-=viewportHeight}else if(viewportAnchor===ANCHOR_CENTER){absolute-=viewportHeight/2}if(elementAnchor===ANCHOR_BOTTOM){absolute+=boxHeight}else if(elementAnchor===ANCHOR_CENTER){absolute+=boxHeight/2}absolute+=_instance.getScrollTop();return(absolute+0.5)|0};Skrollr.prototype.animateTo=function(top,options){options=options||{};var now=_now();var scrollTop=_instance.getScrollTop();_scrollAnimation={startTop:scrollTop,topDiff:top-scrollTop,targetTop:top,duration:options.duration||DEFAULT_DURATION,startTime:now,endTime:now+(options.duration||DEFAULT_DURATION),easing:easings[options.easing||DEFAULT_EASING],done:options.done};if(!_scrollAnimation.topDiff){if(_scrollAnimation.done){_scrollAnimation.done.call(_instance,false)}_scrollAnimation=undefined}return _instance};Skrollr.prototype.stopAnimateTo=function(){if(_scrollAnimation&&_scrollAnimation.done){_scrollAnimation.done.call(_instance,true)}_scrollAnimation=undefined};Skrollr.prototype.isAnimatingTo=function(){return!!_scrollAnimation};Skrollr.prototype.setScrollTop=function(top,force){if(force===true){_lastTop=top;_forceRender=true}if(_isMobile){_mobileOffset=Math.min(Math.max(top,0),_maxKeyFrame)}else{window.scrollTo(0,top)}return _instance};Skrollr.prototype.getScrollTop=function(){if(_isMobile){return _mobileOffset}else{return window.pageYOffset||documentElement.scrollTop||body.scrollTop||0}};Skrollr.prototype.on=function(name,fn){_listeners[name]=fn;return _instance};Skrollr.prototype.off=function(name){delete _listeners[name];return _instance};var _initMobile=function(){var initialElement;var initialTouchY;var initialTouchX;var currentTouchY;var currentTouchX;var lastTouchY;var deltaY;var initialTouchTime;var currentTouchTime;var lastTouchTime;var deltaTime;_addEvent(documentElement,[EVENT_TOUCHSTART,EVENT_TOUCHMOVE,EVENT_TOUCHCANCEL,EVENT_TOUCHEND].join(' '),function(e){e.preventDefault();var touch=e.changedTouches[0];currentTouchY=touch.clientY;currentTouchX=touch.clientX;currentTouchTime=e.timeStamp;switch(e.type){case EVENT_TOUCHSTART:if(initialElement){initialElement.blur()}_instance.stopAnimateTo();initialElement=e.target;initialTouchY=lastTouchY=currentTouchY;initialTouchX=currentTouchX;initialTouchTime=currentTouchTime;break;case EVENT_TOUCHMOVE:deltaY=currentTouchY-lastTouchY;deltaTime=currentTouchTime-lastTouchTime;_instance.setScrollTop(_mobileOffset-deltaY,true);lastTouchY=currentTouchY;lastTouchTime=currentTouchTime;break;default:case EVENT_TOUCHCANCEL:case EVENT_TOUCHEND:var distanceY=initialTouchY-currentTouchY;var distanceX=initialTouchX-currentTouchX;var distance2=distanceX*distanceX+distanceY*distanceY;if(distance2<49){initialElement.focus();initialElement.click();return}initialElement=undefined;var speed=deltaY/deltaTime;speed=Math.max(Math.min(speed,3),-3);var duration=Math.abs(speed/MOBILE_DECELERATION);var targetOffset=speed*duration+0.5*MOBILE_DECELERATION*duration*duration;var targetTop=_instance.getScrollTop()-targetOffset;var targetRatio=0;if(targetTop>_maxKeyFrame){targetRatio=(_maxKeyFrame-targetTop)/targetOffset;targetTop=_maxKeyFrame}else if(targetTop<0){targetRatio=-targetTop/targetOffset;targetTop=0}duration=duration*(1-targetRatio);_instance.animateTo(targetTop,{easing:'outCubic',duration:duration});break}});window.scrollTo(0,0);documentElement.style.overflow=body.style.overflow='hidden'};var _updateDependentKeyFrames=function(){var skrollable;var element;var anchorTarget;var keyFrames;var keyFrameIndex;var keyFramesLength;var kf;var skrollableIndex;var skrollablesLength;skrollableIndex=0;skrollablesLength=_skrollables.length;for(;skrollableIndex<skrollablesLength;skrollableIndex++){skrollable=_skrollables[skrollableIndex];element=skrollable.element;anchorTarget=skrollable.anchorTarget;keyFrames=skrollable.keyFrames;keyFrameIndex=0;keyFramesLength=keyFrames.length;for(;keyFrameIndex<keyFramesLength;keyFrameIndex++){kf=keyFrames[keyFrameIndex];if(kf.mode==='relative'){_reset(element);kf.frame=_instance.relativeToAbsolute(anchorTarget,kf.anchors[0],kf.anchors[1])-kf.offset;_reset(element,true)}if(_forceHeight){if(!kf.isEnd&&kf.frame>_maxKeyFrame){_maxKeyFrame=kf.frame}}}}_maxKeyFrame=Math.max(_maxKeyFrame,_getDocumentHeight());skrollableIndex=0;skrollablesLength=_skrollables.length;for(;skrollableIndex<skrollablesLength;skrollableIndex++){skrollable=_skrollables[skrollableIndex];keyFrames=skrollable.keyFrames;keyFrameIndex=0;keyFramesLength=keyFrames.length;for(;keyFrameIndex<keyFramesLength;keyFrameIndex++){kf=keyFrames[keyFrameIndex];if(kf.isEnd){kf.frame=_maxKeyFrame-kf.offset}}skrollable.keyFrames.sort(_keyFrameComparator)}};var _calcSteps=function(fakeFrame,actualFrame){var skrollableIndex=0;var skrollablesLength=_skrollables.length;for(;skrollableIndex<skrollablesLength;skrollableIndex++){var skrollable=_skrollables[skrollableIndex];var element=skrollable.element;var frame=skrollable.smoothScrolling?fakeFrame:actualFrame;var frames=skrollable.keyFrames;var firstFrame=frames[0].frame;var lastFrame=frames[frames.length-1].frame;var beforeFirst=frame<firstFrame;var afterLast=frame>lastFrame;var firstOrLastFrame=frames[beforeFirst?0:frames.length-1];var key;var value;if(beforeFirst||afterLast){if(beforeFirst&&skrollable.edge===-1||afterLast&&skrollable.edge===1){continue}_updateClass(element,[beforeFirst?SKROLLABLE_BEFORE_CLASS:SKROLLABLE_AFTER_CLASS],[SKROLLABLE_BEFORE_CLASS,SKROLLABLE_BETWEEN_CLASS,SKROLLABLE_AFTER_CLASS]);skrollable.edge=beforeFirst?-1:1;switch(skrollable.edgeStrategy){case'reset':_reset(element);continue;case'ease':frame=firstOrLastFrame.frame;break;default:case'set':var props=firstOrLastFrame.props;for(key in props){if(hasProp.call(props,key)){value=_interpolateString(props[key].value);skrollr.setStyle(element,key,value)}}continue}}else{if(skrollable.edge!==0){_updateClass(element,[SKROLLABLE_CLASS,SKROLLABLE_BETWEEN_CLASS],[SKROLLABLE_BEFORE_CLASS,SKROLLABLE_AFTER_CLASS]);skrollable.edge=0}}var keyFrameIndex=0;var framesLength=frames.length-1;for(;keyFrameIndex<framesLength;keyFrameIndex++){if(frame>=frames[keyFrameIndex].frame&&frame<=frames[keyFrameIndex+1].frame){var left=frames[keyFrameIndex];var right=frames[keyFrameIndex+1];for(key in left.props){if(hasProp.call(left.props,key)){var progress=(frame-left.frame)/(right.frame-left.frame);progress=left.props[key].easing(progress);value=_calcInterpolation(left.props[key].value,right.props[key].value,progress);value=_interpolateString(value);skrollr.setStyle(element,key,value)}}break}}}};var _render=function(){if(_requestReflow){_requestReflow=false;_reflow()}var renderTop=_instance.getScrollTop();var afterAnimationCallback;var now=_now();var progress;if(_scrollAnimation){if(now>=_scrollAnimation.endTime){renderTop=_scrollAnimation.targetTop;afterAnimationCallback=_scrollAnimation.done;_scrollAnimation=undefined}else{progress=_scrollAnimation.easing((now-_scrollAnimation.startTime)/_scrollAnimation.duration);renderTop=(_scrollAnimation.startTop+progress*_scrollAnimation.topDiff)|0}_instance.setScrollTop(renderTop,true)}else if(!_isMobile){var smoothScrollingDiff=_smoothScrolling.targetTop-renderTop;if(smoothScrollingDiff){_smoothScrolling={startTop:_lastTop,topDiff:renderTop-_lastTop,targetTop:renderTop,startTime:_lastRenderCall,endTime:_lastRenderCall+_smoothScrollingDuration}}if(now<=_smoothScrolling.endTime){progress=easings.sqrt((now-_smoothScrolling.startTime)/_smoothScrollingDuration);renderTop=(_smoothScrolling.startTop+progress*_smoothScrolling.to
8pDiff)|0}}if(_isMobile&&_skrollrBody){skrollr.setStyle(_skrollrBody,'transform','translate(0, '+ -(_mobileOffset)+'px) '+_translateZ)}if(_forceRender||_lastTop!==renderTop){_direction=(renderTop>=_lastTop)?'down':'up';_forceRender=false;var listenerParams={curTop:renderTop,lastTop:_lastTop,maxTop:_maxKeyFrame,direction:_direction};var continueRendering=_listeners.beforerender&&_listeners.beforerender.call(_instance,listenerParams);if(continueRendering!==false){_calcSteps(renderTop,_instance.getScrollTop());_lastTop=renderTop;if(_listeners.render){_listeners.render.call(_instance,listenerParams)}}if(afterAnimationCallback){afterAnimationCallback.call(_instance,false)}}_lastRenderCall=now};var _parseProps=function(skrollable){var keyFrameIndex=0;var keyFramesLength=skrollable.keyFrames.length;for(;keyFrameIndex<keyFramesLength;keyFrameIndex++){var frame=skrollable.keyFrames[keyFrameIndex];var easing;var value;var prop;var props={};var match;while((match=rxPropValue.exec(frame.props))!==null){prop=match[1];value=match[2];easing=prop.match(rxPropEasing);if(easing!==null){prop=easing[1];easing=easing[2]}else{easing=DEFAULT_EASING}value=value.indexOf('!')?_parseProp(value):[value.slice(1)];props[prop]={value:value,easing:easings[easing]}}frame.props=props}};var _parseProp=function(val){var numbers=[];rxRGBAIntegerColor.lastIndex=0;val=val.replace(rxRGBAIntegerColor,function(rgba){return rgba.replace(rxNumericValue,function(n){return n/255*100+'%'})});if(theDashedCSSPrefix){rxGradient.lastIndex=0;val=val.replace(rxGradient,function(s){return theDashedCSSPrefix+s})}val=val.replace(rxNumericValue,function(n){numbers.push(+n);return'{?}'});numbers.unshift(val);return numbers};var _fillProps=function(sk){var propList={};var keyFrameIndex;var keyFramesLength;keyFrameIndex=0;keyFramesLength=sk.keyFrames.length;for(;keyFrameIndex<keyFramesLength;keyFrameIndex++){_fillPropForFrame(sk.keyFrames[keyFrameIndex],propList)}propList={};keyFrameIndex=sk.keyFrames.length-1;for(;keyFrameIndex>=0;keyFrameIndex--){_fillPropForFrame(sk.keyFrames[keyFrameIndex],propList)}};var _fillPropForFrame=function(frame,propList){var key;for(key in propList){if(!hasProp.call(frame.props,key)){frame.props[key]=propList[key]}}for(key in frame.props){propList[key]=frame.props[key]}};var _calcInterpolation=function(val1,val2,progress){var valueIndex;var val1Length=val1.length;if(val1Length!==val2.length){throw'Can\'t interpolate between "'+val1[0]+'" and "'+val2[0]+'"';}var interpolated=[val1[0]];valueIndex=1;for(;valueIndex<val1Length;valueIndex++){interpolated[valueIndex]=val1[valueIndex]+((val2[valueIndex]-val1[valueIndex])*progress)}return interpolated};var _interpolateString=function(val){var valueIndex=1;rxInterpolateString.lastIndex=0;return val[0].replace(rxInterpolateString,function(){return val[valueIndex++]})};var _reset=function(elements,undo){elements=[].concat(elements);var skrollable;var element;var elementsIndex=0;var elementsLength=elements.length;for(;elementsIndex<elementsLength;elementsIndex++){element=elements[elementsIndex];skrollable=_skrollables[element[SKROLLABLE_ID_DOM_PROPERTY]];if(!skrollable){continue}if(undo){element.style.cssText=skrollable.dirtyStyleAttr;_updateClass(element,skrollable.dirtyClassAttr)}else{skrollable.dirtyStyleAttr=element.style.cssText;skrollable.dirtyClassAttr=_getClass(element);element.style.cssText=skrollable.styleAttr;_updateClass(element,skrollable.classAttr)}}};var _detect3DTransforms=function(){_translateZ='translateZ(0)';skrollr.setStyle(_skrollrBody,'transform',_translateZ);var computedStyle=getStyle(_skrollrBody);var computedTransform=computedStyle.getPropertyValue('transform');var computedTransformWithPrefix=computedStyle.getPropertyValue(theDashedCSSPrefix+'transform');var has3D=(computedTransform&&computedTransform!=='none')||(computedTransformWithPrefix&&computedTransformWithPrefix!=='none');if(!has3D){_translateZ=''}};skrollr.setStyle=function(el,prop,val){var style=el.style;prop=prop.replace(rxCamelCase,rxCamelCaseFn).replace('-','');if(prop==='zIndex'){style[prop]=''+(val|0)}else if(prop==='float'){style.styleFloat=style.cssFloat=val}else{try{if(theCSSPrefix){style[theCSSPrefix+prop.slice(0,1).toUpperCase()+prop.slice(1)]=val}style[prop]=val}catch(ignore){}}
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