1 line
17 KiB
JavaScript
1 line
17 KiB
JavaScript
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/*! Backstretch - v2.1.15 - 2017-06-22\n* Copyright (c) 2017 Scott Robbin;* Fork of improvements - by Daniel Cohen Gindi (danielgindi@gmail.com) Licensed MIT */!function(a,b,c){"use strict";function d(a){return m.hasOwnProperty(a)?a:"cover"}var e=/^.*(youtu\.be\/|youtube\.com\/v\/|youtube\.com\/embed\/|youtube\.com\/watch\?v=|youtube\.com\/watch\?.*\&v=)([^#\&\?]*).*/i;a.fn.backstretch=function(d,e){var f=arguments;0===a(b).scrollTop()&&b.scrollTo(0,0);var g;return this.each(function(b){var h=a(this),i=h.data("backstretch");if(i){if("string"==typeof f[0]&&"function"==typeof i[f[0]]){var j=i[f[0]].apply(i,Array.prototype.slice.call(f,1));return j===i&&(j=c),void(j!==c&&(g=g||[],g[b]=j))}e=a.extend(i.options,e),i.hasOwnProperty("destroy")&&i.destroy(!0)}if(!d||d&&0===d.length){var k=h.css("background-image");k&&"none"!==k?d=[{url:h.css("backgroundImage").replace(/url\(|\)|"|'/g,"")}]:a.error("No images were supplied for Backstretch, or element must have a CSS-defined background image.")}i=new n(this,d,e||{}),h.data("backstretch",i)}),g?1===g.length?g[0]:g:this},a.backstretch=function(b,c){return a("body").backstretch(b,c).data("backstretch")},a.expr[":"].backstretch=function(b){return a(b).data("backstretch")!==c},a.fn.backstretch.defaults={duration:5e3,transition:"fade",transitionDuration:0,animateFirst:!0,alignX:.5,alignY:.5,paused:!1,start:0,preload:2,preloadSize:1,resolutionRefreshRate:2500,resolutionChangeRatioThreshold:.1};var f={wrap:{left:0,top:0,overflow:"hidden",margin:0,padding:0,height:"100%",width:"100%",zIndex:-999999},itemWrapper:{position:"absolute",display:"none",margin:0,padding:0,border:"none",width:"100%",height:"100%",zIndex:-999999},item:{position:"absolute",margin:0,padding:0,border:"none",width:"100%",height:"100%",maxWidth:"none"}},g=function(){var c=function(a){for(var b=1;b<a.length;b++){for(var c=a[b],d=b;a[d-1]&&parseInt(a[d-1].width,10)>parseInt(c.width,10);)a[d]=a[d-1],--d;a[d]=c}return a},d=function(a,c,d){for(var e,f,g=b.devicePixelRatio||1,h=q(),i=(r(),c>a?"portrait":a>c?"landscape":"square"),j=0,k=0;k<d.length&&(f=d[k],"string"==typeof f&&(f=d[k]={url:f}),f.pixelRatio&&"auto"!==f.pixelRatio&&parseFloat(f.pixelRatio)!==g||f.deviceOrientation&&f.deviceOrientation!==h||f.windowOrientation&&f.windowOrientation!==h||f.orientation&&f.orientation!==i||(j=k,e=a,"auto"===f.pixelRatio&&(a*=g),!(f.width>=e)));k++);return d[Math.min(k,j)]},e=function(a,b){if("string"==typeof a)a=a.replace(/{{(width|height)}}/g,b);else if(a instanceof Array)for(var c=0;c<a.length;c++)a[c].src?a[c].src=e(a[c].src,b):a[c]=e(a[c],b);return a};return function(b,f){for(var g=b.width(),h=b.height(),i=[],j=function(a,b){return"width"===b?g:"height"===b?h:a},k=0;k<f.length;k++)if(a.isArray(f[k])){f[k]=c(f[k]);var l=d(g,h,f[k]);i.push(l)}else{"string"==typeof f[k]&&(f[k]={url:f[k]});var m=a.extend({},f[k]);m.url=e(m.url,j),i.push(m)}return i}}(),h=function(a){return e.test(a.url)||a.isVideo},i=function(b,c,d,e,f){var g=[],i=function(a){for(var b=0;b<g.length;b++)if(g[b].src===a.src)return g[b];return g.push(a),a},j=function(a,b,c){"function"==typeof b&&b.call(a,c)};return function b(c,d,e,f,g){if("undefined"!=typeof c){a.isArray(c)||(c=[c]),arguments.length<5&&"function"==typeof arguments[arguments.length-1]&&(g=arguments[arguments.length-1]),d="function"!=typeof d&&d?d:0,e="function"==typeof e||!e||e<0?c.length:Math.min(e,c.length),f="function"!=typeof f&&f?f:1,d>=c.length&&(d=0,e=0),f<0&&(f=e),f=Math.min(f,e);var k=c.slice(d+f,e-f);if(c=c.slice(d,f),e=c.length,!e)return void j(c,g,!0);for(var l,m=0,n=function(){m++,m===e&&(j(c,g,!k),b(k,0,0,f,g))},o=0;o<c.length;o++)h(c[o])||(l=new Image,l.src=c[o].url,l=i(l),l.complete?n():a(l).on("load error",n))}}}(),j=function(b){for(var c=[],d=0;d<b.length;d++)"string"==typeof b[d]?c.push({url:b[d]}):a.isArray(b[d])?c.push(j(b[d])):c.push(k(b[d]));return c},k=function(a,e){return(a.centeredX||a.centeredY)&&(b.console&&b.console.log&&b.console.log("jquery.backstretch: `centeredX`/`centeredY` is deprecated, please use `alignX`/`alignY`"),a.centeredX&&(a.alignX=.5),a.centeredY&&(a.alignY=
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