glider.min.js

/* @preserve
    _____ __ _     __                _
   / ___// /(_)___/ /___  ____      (_)___
  / (_ // // // _  // -_)/ __/_    / /(_-<
  \___//_//_/ \_,_/ \__//_/  (_)__/ //___/
                              |___/

  Version: 1.7.4
  Author: Nick Piscitelli (pickykneee)
  Website: https://nickpiscitelli.com
  Documentation: http://nickpiscitelli.github.io/Glider.js
  License: MIT License
  Release Date: October 25th, 2018

*/
!function(e){"function"==typeof define&&define.amd?define(e):"object"==typeof exports?module.exports=e():e()}(function(){var n="undefined"!=typeof window?window:this,e=n.Glider=function(e,t){var o=this;if(e._glider)return e._glider;if(o.ele=e,(o.ele._glider=o).opt=Object.assign({},{slidesToScroll:1,slidesToShow:1,resizeLock:!0,duration:.5,easing:function(e,t,o,i,s){return i*(t/=s)*t+o},classes:{glider:"glider",track:"glider-track",slide:"glider-slide",drag:"drag",draggable:"draggable",disabled:"disabled",active:"active",visible:"visible",dot:"glider-dot",dots:"glider-dots"}},t),o.animate_id=o.page=o.slide=0,o.arrows={},o._opt=o.opt,o.opt.skipTrack)o.track=o.ele.children[0];else for(o.track=document.createElement("div"),o.ele.appendChild(o.track);1!==o.ele.children.length;)o.track.appendChild(o.ele.children[0]);o.ele.classList.add(o.opt.classes.glider),o.track.classList.add(o.opt.classes.track),o.init(),o.resize=o.init.bind(o,!0),o.event(o.ele,"add",{scroll:o.updateControls.bind(o)}),o.event(n,"add",{resize:o.resize})},t=e.prototype;return t.init=function(e,t){var o=this,i=0,s=0;o.slides=o.track.children,[].forEach.call(o.slides,function(e,t){e.classList.add("glider-slide"),e.setAttribute("data-gslide",t)}),o.containerWidth=o.ele.clientWidth;var r=o.settingsBreakpoint();if(t=t||r,"auto"===o.opt.slidesToShow||void 0!==o.opt._autoSlide){var l=o.containerWidth/o.opt.itemWidth;o.opt._autoSlide=o.opt.slidesToShow=o.opt.exactWidth?l:Math.max(1,Math.floor(l))}"auto"===o.opt.slidesToScroll&&(o.opt.slidesToScroll=Math.floor(o.opt.slidesToShow)),o.itemWidth=o.opt.exactWidth?o.opt.itemWidth:o.containerWidth/o.opt.slidesToShow,[].forEach.call(o.slides,function(e){e.style.height="auto",e.style.width=o.itemWidth+"px",i+=o.itemWidth,s=Math.max(e.offsetHeight,s)}),o.track.style.width=i+"px",o.trackWidth=i,o.isDrag=!1,o.preventClick=!1,o.opt.resizeLock&&o.scrollTo(o.slide*o.itemWidth,0),(r||t)&&(o.bindArrows(),o.buildDots(),o.bindDrag()),o.updateControls(),o.emit(e?"refresh":"loaded")},t.bindDrag=function(){var t=this;t.mouse=t.mouse||t.handleMouse.bind(t);function e(){t.mouseDown=void 0,t.ele.classList.remove(t.opt.classes.drag),t.isDrag&&(t.preventClick=!0),t.isDrag=!1}var o={mouseup:e,mouseleave:e,mousedown:function(e){e.preventDefault(),e.stopPropagation(),t.mouseDown=e.clientX,t.ele.classList.add(t.opt.classes.drag)},mousemove:t.mouse,click:function(e){t.preventClick&&(e.preventDefault(),e.stopPropagation()),t.preventClick=!1}};t.ele.classList.toggle(t.opt.classes.draggable,!0===t.opt.draggable),t.event(t.ele,"remove",o),t.opt.draggable&&t.event(t.ele,"add",o)},t.buildDots=function(){var e=this;if(e.opt.dots){if("string"==typeof e.opt.dots?e.dots=document.querySelector(e.opt.dots):e.dots=e.opt.dots,e.dots){e.dots.innerHTML="",e.dots.classList.add(e.opt.classes.dots);for(var t=0;t<Math.ceil(e.slides.length/Math.floor(e.opt.slidesToShow));++t){var o=document.createElement("button");o.dataset.index=t,o.setAttribute("aria-label","Page "+(t+1)),o.setAttribute("role","tab"),o.className=e.opt.classes.dot+" "+(t?"":e.opt.classes.active),e.event(o,"add",{click:e.scrollItem.bind(e,t,!0)}),e.dots.appendChild(o)}}}else e.dots&&(e.dots.innerHTML="")},t.bindArrows=function(){var o=this;o.opt.arrows?["prev","next"].forEach(function(e){var t=o.opt.arrows[e];t&&("string"==typeof t&&(t=document.querySelector(t)),t&&(t._func=t._func||o.scrollItem.bind(o,e),o.event(t,"remove",{click:t._func}),o.event(t,"add",{click:t._func}),o.arrows[e]=t))}):Object.keys(o.arrows).forEach(function(e){var t=o.arrows[e];o.event(t,"remove",{click:t._func})})},t.updateControls=function(e){var d=this;e&&!d.opt.scrollPropagate&&e.stopPropagation();var t=d.containerWidth>=d.trackWidth;d.opt.rewind||(d.arrows.prev&&(d.arrows.prev.classList.toggle(d.opt.classes.disabled,d.ele.scrollLeft<=0||t),d.arrows.prev.classList.contains("disabled")?d.arrows.prev.setAttribute("aria-disabled",!0):d.arrows.prev.setAttribute("aria-disabled",!1)),d.arrows.next&&(d.arrows.next.classList.toggle(d.opt.classes.disabled,Math.ceil(d.ele.scrollLeft+d.containerWidth)>=Math.floor(d.trackWidth)||t),d.arrows.next.classList.contains("disabled")?d.arrows.next.setAttribute("aria-disabled",!0):d.arrows.next.setAttribute("aria-disabled",!1))),d.slide=Math.round(d.ele.scrollLeft/d.itemWidth),d.page=Math.round(d.ele.scrollLeft/(d.itemWidth*Math.floor(d.opt.slidesToShow)));var c=d.slide+Math.floor(Math.floor(d.opt.slidesToShow)/2),h=Math.floor(d.opt.slidesToShow)%2?0:c+1;1===Math.floor(d.opt.slidesToShow)&&(h=0),d.ele.scrollLeft+d.containerWidth>=Math.floor(d.trackWidth)&&(d.page=d.dots?d.dots.children.length-1:0),[].forEach.call(d.slides,function(e,t){var o=e.classList,i=o.contains(d.opt.classes.visible),s=d.ele.scrollLeft,r=d.ele.scrollLeft+d.containerWidth,l=d.itemWidth*t,a=l+d.itemWidth;[].forEach.call(o,function(e){/^left|right/.test(e)&&o.remove(e)}),o.toggle("active",d.slide===t),c===t||h&&h===t?o.add("center"):(o.remove("center"),o.add([t<c?"left":"right",Math.abs(t-(t<c?c:h||c))].join("-")));var n=Math.ceil(l)>=Math.floor(s)&&Math.floor(a)<=Math.ceil(r);o.toggle("visible",n),n!==i&&d.emit("slide-"+(n?"visible":"hidden"),{slide:t})}),d.dots&&[].forEach.call(d.dots.children,function(e,t){e.classList.toggle(d.opt.classes.active,d.page===t)}),e&&d.opt.scrollLock&&(clearTimeout(d.scrollLock),d.scrollLock=setTimeout(function(){clearTimeout(d.scrollLock),.02<Math.abs(d.ele.scrollLeft/d.itemWidth-d.slide)&&(d.mouseDown||d.trackWidth>d.containerWidth+d.ele.scrollLeft&&d.scrollItem(d.getCurrentSlide()))},d.opt.scrollLockDelay||250))},t.getCurrentSlide=function(){var e=this;return e.round(e.ele.scrollLeft/e.itemWidth)},t.scrollItem=function(e,t,o){o&&o.preventDefault();var i=this,s=e;if(++i.animate_id,!0===t)e*=Math.floor(i.opt.slidesToShow),e*=i.itemWidth;else{if("string"==typeof e){var r="prev"===e;if(e=i.opt.slidesToScroll%1||i.opt.slidesToShow%1?i.getCurrentSlide():i.slide,r?e-=i.opt.slidesToScroll:e+=i.opt.slidesToScroll,i.opt.rewind){var l=i.ele.scrollLeft;e=r&&!l?i.slides.length:!r&&l+i.containerWidth>=Math.floor(i.trackWidth)?0:e}}e=Math.max(Math.min(e,i.slides.length),0),i.slide=e,e=i.itemWidth*e}return i.scrollTo(e,i.opt.duration*Math.abs(i.ele.scrollLeft-e),function(){i.updateControls(),i.emit("animated",{value:s,type:"string"==typeof s?"arrow":t?"dot":"slide"})}),!1},t.settingsBreakpoint=function(){var e=this,t=e._opt.responsive;if(t){t.sort(function(e,t){return t.breakpoint-e.breakpoint});for(var o=0;o<t.length;++o){var i=t[o];if(n.innerWidth>=i.breakpoint)return e.breakpoint!==i.breakpoint&&(e.opt=Object.assign({},e._opt,i.settings),e.breakpoint=i.breakpoint,!0)}}var s=0!==e.breakpoint;return e.opt=Object.assign({},e._opt),e.breakpoint=0,s},t.scrollTo=function(t,o,i){var s=this,r=(new Date).getTime(),l=s.animate_id,a=function(){var e=(new Date).getTime()-r;s.ele.scrollLeft=s.ele.scrollLeft+(t-s.ele.scrollLeft)*s.opt.easing(0,e,0,1,o),e<o&&l===s.animate_id?n.requestAnimationFrame(a):(s.ele.scrollLeft=t,i&&i.call(s))};n.requestAnimationFrame(a)},t.removeItem=function(e){var t=this;t.slides.length&&(t.track.removeChild(t.slides[e]),t.refresh(!0),t.emit("remove"))},t.addItem=function(e){this.track.appendChild(e),this.refresh(!0),this.emit("add")},t.handleMouse=function(e){var t=this;t.mouseDown&&(t.isDrag=!0,t.ele.scrollLeft+=(t.mouseDown-e.clientX)*(t.opt.dragVelocity||3.3),t.mouseDown=e.clientX)},t.round=function(e){var t=1/(this.opt.slidesToScroll%1||1);return Math.round(e*t)/t},t.refresh=function(e){this.init(!0,e)},t.setOption=function(t,e){var o=this;o.breakpoint&&!e?o._opt.responsive.forEach(function(e){e.breakpoint===o.breakpoint&&(e.settings=Object.assign({},e.settings,t))}):o._opt=Object.assign({},o._opt,t),o.breakpoint=0,o.settingsBreakpoint()},t.destroy=function(){function e(t){t.removeAttribute("style"),[].forEach.call(t.classList,function(e){/^glider/.test(e)&&t.classList.remove(e)})}var t=this,o=t.ele.cloneNode(!0);o.children[0].outerHTML=o.children[0].innerHTML,e(o),[].forEach.call(o.getElementsByTagName("*"),e),t.ele.parentNode.replaceChild(o,t.ele),t.event(n,"remove",{resize:t.resize}),t.emit("destroy")},t.emit=function(e,t){var o=new n.CustomEvent("glider-"+e,{bubbles:!this.opt.eventPropagate,detail:t});this.ele.dispatchEvent(o)},t.event=function(e,t,o){var i=e[t+"EventListener"].bind(e);Object.keys(o).forEach(function(e){i(e,o[e])})},e});