youtube-landingpage/marquee.js

/**
 * jQuery.marquee - scrolling text like old marquee element
 * @author Aamir Afridi - aamirafridi(at)gmail(dot)com / http://aamirafridi.com/jquery/jquery-marquee-plugin
 */
!function(e){e.fn.marquee=function(t){return this.each(function(){var i,a,n,r,s,o=e.extend({},e.fn.marquee.defaults,t),u=e(this),d=3,p="animation-play-state",l=!1,c=function(e,t,i){for(var a=["webkit","moz","MS","o",""],n=0;n<a.length;n++)a[n]||(t=t.toLowerCase()),e.addEventListener(a[n]+t,i,!1)},f=function(e){var t=[];for(var i in e)e.hasOwnProperty(i)&&t.push(i+":"+e[i]);return t.push(),"{"+t.join(",")+"}"},m=function(){u.timer=setTimeout(B,o.delayBeforeStart)},g={pause:function(){l&&o.allowCss3Support?i.css(p,"paused"):e.fn.pause&&i.pause(),u.data("runningStatus","paused"),u.trigger("paused")},resume:function(){l&&o.allowCss3Support?i.css(p,"running"):e.fn.resume&&i.resume(),u.data("runningStatus","resumed"),u.trigger("resumed")},toggle:function(){g["resumed"==u.data("runningStatus")?"pause":"resume"]()},destroy:function(){clearTimeout(u.timer),u.find("*").andSelf().unbind(),u.html(u.find(".js-marquee:first").html())}};if("string"==typeof t)return void(e.isFunction(g[t])&&(i||(i=u.find(".js-marquee-wrapper")),u.data("css3AnimationIsSupported")===!0&&(l=!0),g[t]()));var h;e.each(o,function(e,t){if(h=u.attr("data-"+e),"undefined"!=typeof h){switch(h){case"true":h=!0;break;case"false":h=!1}o[e]=h}}),o.duration=o.speed||o.duration,r="up"==o.direction||"down"==o.direction,o.gap=o.duplicated?parseInt(o.gap):0,u.wrapInner('<div class="js-marquee"></div>');var v=u.find(".js-marquee").css({"margin-right":o.gap,"float":"left"});if(o.duplicated&&v.clone(!0).appendTo(u),u.wrapInner('<div style="width:100000px" class="js-marquee-wrapper"></div>'),i=u.find(".js-marquee-wrapper"),r){var y=u.height();i.removeAttr("style"),u.height(y),u.find(".js-marquee").css({"float":"none","margin-bottom":o.gap,"margin-right":0}),o.duplicated&&u.find(".js-marquee:last").css({"margin-bottom":0});var x=u.find(".js-marquee:first").height()+o.gap;o.startVisible&&!o.duplicated?(o._completeDuration=(parseInt(x,10)+parseInt(y,10))/parseInt(y,10)*o.duration,o.duration=parseInt(x,10)/parseInt(y,10)*o.duration):o.duration=(parseInt(x,10)+parseInt(y,10))/parseInt(y,10)*o.duration}else s=u.find(".js-marquee:first").width()+o.gap,a=u.width(),o.startVisible&&!o.duplicated?(o._completeDuration=(parseInt(s,10)+parseInt(a,10))/parseInt(a,10)*o.duration,o.duration=parseInt(s,10)/parseInt(a,10)*o.duration):o.duration=(parseInt(s,10)+parseInt(a,10))/parseInt(a,10)*o.duration;if(o.duplicated&&(o.duration=o.duration/2),o.allowCss3Support){var I=document.body||document.createElement("div"),b="marqueeAnimation-"+Math.floor(1e7*Math.random()),S="Webkit Moz O ms Khtml".split(" "),w="animation",q="",j="";if(I.style.animation&&(j="@keyframes "+b+" ",l=!0),l===!1)for(var C=0;C<S.length;C++)if(void 0!==I.style[S[C]+"AnimationName"]){var V="-"+S[C].toLowerCase()+"-";w=V+w,p=V+p,j="@"+V+"keyframes "+b+" ",l=!0;break}l&&(q=b+" "+o.duration/1e3+"s "+o.delayBeforeStart/1e3+"s infinite "+o.css3easing,u.data("css3AnimationIsSupported",!0))}var A=function(){i.css("margin-top","up"==o.direction?y+"px":"-"+x+"px")},k=function(){i.css("margin-left","left"==o.direction?a+"px":"-"+s+"px")};o.duplicated?(r?o.startVisible?i.css("margin-top",0):i.css("margin-top","up"==o.direction?y+"px":"-"+(2*x-o.gap)+"px"):o.startVisible?i.css("margin-left",0):i.css("margin-left","left"==o.direction?a+"px":"-"+(2*s-o.gap)+"px"),o.startVisible||(d=1)):o.startVisible?d=2:r?A():k();var B=function(){if(o.duplicated&&(1===d?(o._originalDuration=o.duration,r?o.duration="up"==o.direction?o.duration+y/(x/o.duration):2*o.duration:o.duration="left"==o.direction?o.duration+a/(s/o.duration):2*o.duration,q&&(q=b+" "+o.duration/1e3+"s "+o.delayBeforeStart/1e3+"s "+o.css3easing),d++):2===d&&(o.duration=o._originalDuration,q&&(b+="0",j=e.trim(j)+"0 ",q=b+" "+o.duration/1e3+"s 0s infinite "+o.css3easing),d++)),r?o.duplicated?(d>2&&i.css("margin-top","up"==o.direction?0:"-"+x+"px"),n={"margin-top":"up"==o.direction?"-"+x+"px":0}):o.startVisible?2===d?(q&&(q=b+" "+o.duration/1e3+"s "+o.delayBeforeStart/1e3+"s "+o.css3easing),n={"margin-top":"up"==o.direction?"-"+x+"px":y+"px"},d++):3===d&&(o.duration=o._completeDuration,q&&(b+="0",j=e.trim(j)+"0 ",q=b+" "+o.duration/1e3+"s 0s infinite "+o.css3easing),A()):(A(),n={"margin-top":"up"==o.direction?"-"+i.height()+"px":y+"px"}):o.duplicated?(d>2&&i.css("margin-left","left"==o.direction?0:"-"+s+"px"),n={"margin-left":"left"==o.direction?"-"+s+"px":0}):o.startVisible?2===d?(q&&(q=b+" "+o.duration/1e3+"s "+o.delayBeforeStart/1e3+"s "+o.css3easing),n={"margin-left":"left"==o.direction?"-"+s+"px":a+"px"},d++):3===d&&(o.duration=o._completeDuration,q&&(b+="0",j=e.trim(j)+"0 ",q=b+" "+o.duration/1e3+"s 0s infinite "+o.css3easing),k()):(k(),n={"margin-left":"left"==o.direction?"-"+s+"px":a+"px"}),u.trigger("beforeStarting"),l){i.css(w,q);var t=j+" { 100%  "+f(n)+"}",p=i.find("style");0!==p.length?p.filter(":last").html(t):i.append("<style>"+t+"</style>"),c(i[0],"AnimationIteration",function(){u.trigger("finished")}),c(i[0],"AnimationEnd",function(){B(),u.trigger("finished")})}else i.animate(n,o.duration,o.easing,function(){u.trigger("finished"),o.pauseOnCycle?m():B()});u.data("runningStatus","resumed")};u.bind("pause",g.pause),u.bind("resume",g.resume),o.pauseOnHover&&u.bind("mouseenter mouseleave",g.toggle),l&&o.allowCss3Support?B():m()})},e.fn.marquee.defaults={allowCss3Support:!0,css3easing:"linear",easing:"linear",delayBeforeStart:1e3,direction:"left",duplicated:!1,duration:5e3,gap:20,pauseOnCycle:!1,pauseOnHover:!1,startVisible:!1}}(jQuery);