background.min.js

(function(){var factory_function;factory_function=function(factory){if(typeof module!=="undefined"&&module.exports)return module.exports=factory(require("jquery"));else if(typeof define==="function"&&define.amd)return define(["jquery"],factory);else return window.Background=factory(jQuery)};factory_function(function($){var Background;return Background={internal:{_document:$(document),_window:$(window),_body:$("body")},tick:function(options){var animation_style,change,constructor,coordinate,document_height,
dom_document,params,regExp_url,window_height,_ref;params=this.internal;params._body=params._body.length?params._body:$("body");constructor={source:{},duration:"1s",easeType:"ease-out",callback:function(){}};if(arguments.length)if(options.imageUrl||options.json||options.jsonString)options={source:arguments[0],callback:arguments[1]};options=$.extend(constructor,options);dom_document=document;regExp_url=/^(?:([A-Za-z]+):)?(\/{0,3})([0-9.\-A-Za-z]+)(?::(\d+))?(?:\/([^?#]*))?(?:\?([^#]*))?(?:#(.*))?$/;
change=function(value){var day,end,moment,now,start,this_moment,_i,_len,_ref,_ref1;if(typeof value==="string")value=$.parseJSON(value);day=value.backgrounds;now=new Date;for(_i=0,_len=day.length;_i<_len;_i++){moment=day[_i];start=moment.started_at.split(":");end=moment.ended_at.split(":");if(start[0]===end[0])if(now.getHours()===parseInt(start[0])&&(start[1]<=(_ref=now.getMinutes())&&_ref<=end[1]))true;else continue;else if(parseInt(start[0])<(_ref1=now.getHours())&&_ref1<parseInt(end[0]))true;else if(now.getHours()===
parseInt(start[0])&&now.getMinutes()>=parseInt(start[1]))true;else if(now.getHours()===parseInt(end[0])&&now.getMinutes()<=parseInt(end[1]))true;else continue;this_moment=moment}if(this_moment){if(this_moment.image)if(typeof jQuery!=="undefined")params._body.css("background-image","url("+this_moment.image+")");else if(dom_document.styleSheets[0].insertRule)dom_document.styleSheets[0].insertRule("body {background-image:url("+this_moment.image+");}",0);else if(dom_document.styleSheets[0].addRule)dom_document.styleSheets[0].addRule("body",
"background-image:url("+this_moment.image+")",0);if(this_moment.color)return params._body.css("background-color",this_moment.color)}};if(options.source.json)change(options.source.json);else if(options.source.jsonString)if(regExp_url.test(options.source.jsonString))$.ajax({url:options.source.jsonString,data:{},success:function(value){return change(value)}});else change(options.source.jsonString);else if(options.source.imageUrl)if(typeof jQuery!=="undefined")params._body.css("background-image","url("+
options.source.imageUrl+")");else if(dom_document.styleSheets[0].insertRule)dom_document.styleSheets[0].insertRule("body {background-image:url("+options.source.imageUrl+");}",0);else if(dom_document.styleSheets[0].addRule)dom_document.styleSheets[0].addRule("body","background-image:url("+options.source.imageUrl+")",0);animation_style="background-position "+options.duration+" "+options.easeType;params._body.css({"transition":animation_style,"moz-transition":animation_style,"-webkit-transition":animation_style,
"-o-transition":animation_style,"-ms-transition":animation_style,"background-repeat":"no-repeat","background-attachment":"fixed"});if(!params._body.css("background-position"))return true;coordinate=params._body.css("background-position").split(" ");_ref=[params._document.height(),params._window.height()],document_height=_ref[0],window_height=_ref[1];params._body.on("transitionend webkitTransitionEnd oTransitionEnd otransitionend",function(event){return options.callback()});params._window.on("resize",
function(event){return window_height=$(this).height()});return params._window.on("scroll",function(event){var image_scroll,scroll_height;document_height=document_height===params._document.height()?document_height:params._document.height();scroll_height=params._window.scrollTop();image_scroll=(scroll_height/(document_height-window_height)*(100-parseInt(coordinate[1]))+parseInt(coordinate[1])).toFixed(7);return params._body.css("background-position",coordinate[0]+(" "+image_scroll+"%"))})}}})}).call(this);