orbit-basic/app/assets/javascripts/file-upload/canvas-to-blob.min.js

1 line
1.0 KiB
JavaScript
Raw Permalink Normal View History

2013-07-17 10:45:44 +00:00
(function(a){"use strict";var b=a.HTMLCanvasElement&&a.HTMLCanvasElement.prototype,c=a.Blob&&function(){try{return Boolean(new Blob)}catch(a){return!1}}(),d=c&&a.Uint8Array&&function(){try{return(new Blob([new Uint8Array(100)])).size===100}catch(a){return!1}}(),e=a.BlobBuilder||a.WebKitBlobBuilder||a.MozBlobBuilder||a.MSBlobBuilder,f=(c||e)&&a.atob&&a.ArrayBuffer&&a.Uint8Array&&function(a){var b,f,g,h,i,j;a.split(",")[0].indexOf("base64")>=0?b=atob(a.split(",")[1]):b=decodeURIComponent(a.split(",")[1]),f=new ArrayBuffer(b.length),g=new Uint8Array(f);for(h=0;h<b.length;h+=1)g[h]=b.charCodeAt(h);return i=a.split(",")[0].split(":")[1].split(";")[0],c?new Blob([d?g:f],{type:i}):(j=new e,j.append(f),j.getBlob(i))};a.HTMLCanvasElement&&!b.toBlob&&(b.mozGetAsFile?b.toBlob=function(a,c,d){d&&b.toDataURL&&f?a(f(this.toDataURL(c,d))):a(this.mozGetAsFile("blob",c))}:b.toDataURL&&f&&(b.toBlob=function(a,b,c){a(f(this.toDataURL(b,c)))})),typeof define=="function"&&define.amd?define(function(){return f}):a.dataURLtoBlob=f})(this);