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(a,b,c){function d(a){for(var b in a)a.hasOwnProperty(b)&&(this[b]=a[b])}var e,f={},g=a.location,h=b.body,i=[],j=[],k=!(!a.history||!a.history.pushState);return d.prototype={getSlideNumber:function(){return this.number},isLast:function(){return f.slideList.length===this.number+1},isFinished:function(){return this.innerComplete>=this.innerLength},process:function(a){return this.timing?(this.initTimer(a),this):(this.next(a),this)},initTimer:function(a){var b=this;return b.timing?(b.stopTimer(),e=b.isFinished()?setInterval(function(){b.stopTimer(),a.next()},b.timing*(b.innerLength||1)):setInterval(function(){b.isFinished()?(b.stopTimer(),a.next()):b.next(a)},b.timing),this):!1},stopTimer:function(){return e&&(clearInterval(e),e=!1),this},prev:function(a){var c,d=this;return!d.hasInnerNavigation||d.isFinished()||0===d.innerComplete?(a.prev(),!1):(c=b.getElementById(d.id).querySelectorAll(".next.active"),!c||c.length<1?!1:(d.innerComplete>0?(d.innerComplete--,c[c.length-1].classList.remove("active")):a.prev(),this))},next:function(a){var c,d=this;return!d.hasInnerNavigation||d.isFinished()?(a.next(),!1):(d.isFinished()||(c=b.getElementById(d.id).querySelectorAll(".next:not(.active)"),c[0].classList.add("active"),d.innerComplete++),this)}},f._getData=function(a,b){return a.dataset?a.dataset[b]:a.getAttribute("data-"+b)},f.slideList=[],f.init=function(a,c){var e;a=a||".slide",c=c||"div.progress div",i=b.querySelectorAll(a),j=b.querySelector(c);for(var g=0;g<i.length;g++)i[g].id||(i[g].id=g+1),e=f._getData(i[g],"timing"),e&&/^(\d{1,2}:)?\d{1,3}$/.test(e)?(-1!==e.indexOf(":")?(e=e.split(":"),e=1e3*(60*parseInt(e[0],10)+parseInt(e[1],10))):e=1e3*parseInt(e,10),0===e&&(e=!1)):e=!1,f.slideList.push(new d({id:i[g].id,number:g,hasInnerNavigation:null!==i[g].querySelector(".next"),timing:e,innerLength:i[g].querySelectorAll(".next").length,innerComplete:0}));return f},f._getTransform=function(){var b=Math.max(h.clientWidth/a.innerWidth,h.clientHeight/a.innerHeight);return"scale("+1/b+")"},f._applyTransform=function(a){return["WebkitTransform","MozTransform","msTransform","OTransform","transform"].forEach(function(b){h.style[b]=a}),!0},f._isNumber=function(a){return!isNaN(parseFloat(a))&&isFinite(a)},f._normalizeSlideNumber=function(a){if(!f._isNumber(a))throw new Error("Gimme slide number as Number, baby!");return 0>a&&(a=0),a>=f.slideList.length&&(a=f.slideList.length-1),a},f._getSlideIdByEl=function(a){for(;"BODY"!==a.nodeName&&"HTML"!==a.nodeName;){if(a.classList.contains("slide"))return a.id;a=a.parentNode}return""},f._checkInteractiveElement=function(a){return"A"===a.target.nodeName},f.getSlideNumber=function(a){var b,c=f.slideList.length-1;for(""===a&&(b=0);c>=0;--c)if(a===f.slideList[c].id){b=c;break}return b},f.go=function(a,b){var c;if(!f._isNumber(a))throw new Error("Gimme slide number as Number, baby!");return f.slideList[a]?(g.hash=f.getSlideHash(a),f.updateProgress(a),f.updateActiveAndVisitedSlides(a),f.isSlideMode()&&(f.showPresenterNotes(a),c=f.slideList[a],c.timing&&c.initTimer(f)),"function"==typeof b&&b(),a):!1},f.next=function(a){var b=f.getCurrentSlideNumber(),c=f.slideList[b+1];return c?(f.go(b+1),"function"==typeof a&&a(),this):!1},f._turnNextSlide=function(a){var b=f.getCurrentSlideNumber(),c=f.slideList[b];f.isSlideMode()?(c.stopTimer(),c.next(f)):f.go(b+1),"function"==typeof a&&a()},f.prev=f.previous=function(a){var b=f.getCurrentSlideNumber();return 1>b?!1:(f.go(b-1),"function"==typeof a&&a(),!0)},f._turnPreviousSlide=function(a){var b=f.getCurrentSlideNumber(),c=f.slideList[b];return c.stopTimer(),f.isSlideMode()?c.prev(f):f.go(b-1),"function"==typeof a&&a(),!0},f.first=function(a){var b=f.slideList[f.getCurrentSlideNumber()];b.timing&&b.stopTimer(),f.go(0),"function"==typeof a&&a()},f.last=function(a){var b=f.slideList[f.getCurrentSlideNumber()];b.timing&&b.stopTimer(),f.go(f.slideList.length-1),"function"==typeof a&&a()},f.enterSlideMode=function(a){var b=f.getCurrentSlideNumber();return h.classList.remove("list"),h.classList.add("full"),f.isListMode()&&k&&history.pushSt