bmstu-mt-wp/shower.min.js

/**
 * Shower HTML presentation engine: github.com/shower/shower
 * @copyright 2010–2013 Vadim Makeev, pepelsbey.net
 * @license MIT license: github.com/shower/shower/wiki/MIT-License
 */
window.shower=window.shower||function(e,t,i){var r={},n=e.location,s=t.body,l=[],o=[],a,u=!!(e.history&&e.history.pushState);function d(e){for(var t in e){if(e.hasOwnProperty(t)){this[t]=e[t]}}}d.prototype={getSlideNumber:function(){return this.number},isLast:function(){return r.slideList.length===this.number+1},isFinished:function(){return this.innerComplete>=this.innerLength},process:function(e){if(this.timing){this.initTimer(e);return this}this.next(e);return this},initTimer:function(e){var t=this;if(!t.timing){return false}t.stopTimer();if(t.isFinished()){a=setInterval(function(){t.stopTimer();e.next()},t.timing*(t.innerLength||1))}else{a=setInterval(function(){if(t.isFinished()){t.stopTimer();e.next()}else{t.next(e)}},t.timing)}return this},stopTimer:function(){if(a){clearInterval(a);a=false}return this},prev:function(e){var i,r=this;if(!r.hasInnerNavigation||r.isFinished()||r.innerComplete===0){e.prev();return false}i=t.getElementById(r.id).querySelectorAll(".next.active");if(!i||i.length<1){return false}if(r.innerComplete>0){r.innerComplete--;i[i.length-1].classList.remove("active")}else{e.prev()}return this},next:function(e){var i,r=this;if(!r.hasInnerNavigation||r.isFinished()){e.next();return false}if(!r.isFinished()){i=t.getElementById(r.id).querySelectorAll(".next:not(.active)");i[0].classList.add("active");r.innerComplete++}return this}};r._getData=function(e,t){return e.dataset?e.dataset[t]:e.getAttribute("data-"+t)};r.slideList=[];r.init=function(e,n){var s;e=e||".slide";n=n||"div.progress div";l=t.querySelectorAll(e);o=t.querySelector(n);for(var a=0;a<l.length;a++){if(!l[a].id){l[a].id=a+1}s=r._getData(l[a],"timing");if(s&&s.indexOf(":")!==-1){s=s.split(":");s=(parseInt(s[0],10)*60+parseInt(s[1],10))*1e3;if(l[a].querySelector(".next")){s=s/(l[a].querySelectorAll(".next").length+1)}}r.slideList.push(new d({id:l[a].id,number:a,hasInnerNavigation:null!==l[a].querySelector(".next"),timing:parseInt(s,10)||i,innerLength:l[a].querySelectorAll(".next").length,innerComplete:0}))}return r};r._getTransform=function(){var t=Math.max(s.clientWidth/e.innerWidth,s.clientHeight/e.innerHeight);return"scale("+1/t+")"};r._applyTransform=function(e){["WebkitTransform","MozTransform","msTransform","OTransform","transform"].forEach(function(t){s.style[t]=e});return true};r._isNumber=function(e){return!isNaN(parseFloat(e))&&isFinite(e)};r._normalizeSlideNumber=function(e){if(!r._isNumber(e)){throw new Error("Gimme slide number as Number, baby!")}if(e<0){e=0}if(e>=r.slideList.length){e=r.slideList.length-1}return e};r._getSlideIdByEl=function(e){while("BODY"!==e.nodeName&&"HTML"!==e.nodeName){if(e.classList.contains("slide")){return e.id}else{e=e.parentNode}}return""};r._checkInteractiveElement=function(e){return"A"===e.target.nodeName};r.getSlideNumber=function(e){var t=r.slideList.length-1,i;if(e===""){i=0}for(;t>=0;--t){if(e===r.slideList[t].id){i=t;break}}return i};r.go=function(e,t){var i;if(!r._isNumber(e)){throw new Error("Gimme slide number as Number, baby!")}if(!r.slideList[e]){return false}n.hash=r.getSlideHash(e);r.updateProgress(e);r.updateActiveAndVisitedSlides(e);if(r.isSlideMode()){r.showPresenterNotes(e);i=r.slideList[e];if(i.timing){i.initTimer(r)}}if(typeof t==="function"){t()}return e};r.next=function(e){var t=r.getCurrentSlideNumber(),i=r.slideList[t+1];if(!i){return false}r.go(t+1);if(typeof e==="function"){e()}return this};r._turnNextSlide=function(e){var t=r.getCurrentSlideNumber(),i=r.slideList[t];if(r.isSlideMode()){i.stopTimer();i.next(r)}else{r.go(t+1)}if(typeof e==="function"){e()}return};r.prev=r.previous=function(e){var t=r.getCurrentSlideNumber();if(t<1){return false}r.go(t-1);if(typeof e==="function"){e()}return true};r._turnPreviousSlide=function(e){var t=r.getCurrentSlideNumber(),i=r.slideList[t];i.stopTimer();if(r.isSlideMode()){i.prev(r)}else{r.go(t-1)}if(typeof e==="function"){e()}return true};r.first=function(e){var t=r.slideList[r.getCurrentSlideNumber()];t.timing&&t.stopTimer();r.go(0);if(typeof e==="function"){e()}};r.last=function(e){var t=r.slideList[r.getCurrentSlideNumber()];t.timing