| /* Blob.js |
| * A Blob implementation. |
| * 2013-06-20 |
| * |
| * By Eli Grey, http://eligrey.com |
| * By Devin Samarin, https://github.com/eboyjr |
| * License: X11/MIT |
| * See LICENSE.md |
| */ |
| |
| /*global self, unescape */ |
| /*jslint bitwise: true, regexp: true, confusion: true, es5: true, vars: true, white: true, |
| plusplus: true */ |
| |
| /*! @source http://purl.eligrey.com/github/Blob.js/blob/master/Blob.js */ |
| |
| if (typeof Blob !== "function" || typeof URL === "undefined") |
| if (typeof Blob === "function" && typeof webkitURL !== "undefined") self.URL = webkitURL; |
| else var Blob = (function (view) { |
| "use strict"; |
| |
| var BlobBuilder = view.BlobBuilder || view.WebKitBlobBuilder || view.MozBlobBuilder || view.MSBlobBuilder || (function(view) { |
| var |
| get_class = function(object) { |
| return Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1]; |
| } |
| , FakeBlobBuilder = function BlobBuilder() { |
| this.data = []; |
| } |
| , FakeBlob = function Blob(data, type, encoding) { |
| this.data = data; |
| this.size = data.length; |
| this.type = type; |
| this.encoding = encoding; |
| } |
| , FBB_proto = FakeBlobBuilder.prototype |
| , FB_proto = FakeBlob.prototype |
| , FileReaderSync = view.FileReaderSync |
| , FileException = function(type) { |
| this.code = this[this.name = type]; |
| } |
| , file_ex_codes = ( |
| "NOT_FOUND_ERR SECURITY_ERR ABORT_ERR NOT_READABLE_ERR ENCODING_ERR " |
| + "NO_MODIFICATION_ALLOWED_ERR INVALID_STATE_ERR SYNTAX_ERR" |
| ).split(" ") |
| , file_ex_code = file_ex_codes.length |
| , real_URL = view.URL || view.webkitURL || view |
| , real_create_object_URL = real_URL.createObjectURL |
| , real_revoke_object_URL = real_URL.revokeObjectURL |
| , URL = real_URL |
| , btoa = view.btoa |
| , atob = view.atob |
| |
| , ArrayBuffer = view.ArrayBuffer |
| , Uint8Array = view.Uint8Array |
| ; |
| FakeBlob.fake = FB_proto.fake = true; |
| while (file_ex_code--) { |
| FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1; |
| } |
| if (!real_URL.createObjectURL) { |
| URL = view.URL = {}; |
| } |
| URL.createObjectURL = function(blob) { |
| var |
| type = blob.type |
| , data_URI_header |
| ; |
| if (type === null) { |
| type = "application/octet-stream"; |
| } |
| if (blob instanceof FakeBlob) { |
| data_URI_header = "data:" + type; |
| if (blob.encoding === "base64") { |
| return data_URI_header + ";base64," + blob.data; |
| } else if (blob.encoding === "URI") { |
| return data_URI_header + "," + decodeURIComponent(blob.data); |
| } if (btoa) { |
| return data_URI_header + ";base64," + btoa(blob.data); |
| } else { |
| return data_URI_header + "," + encodeURIComponent(blob.data); |
| } |
| } else if (real_create_object_URL) { |
| return real_create_object_URL.call(real_URL, blob); |
| } |
| }; |
| URL.revokeObjectURL = function(object_URL) { |
| if (object_URL.substring(0, 5) !== "data:" && real_revoke_object_URL) { |
| real_revoke_object_URL.call(real_URL, object_URL); |
| } |
| }; |
| FBB_proto.append = function(data/*, endings*/) { |
| var bb = this.data; |
| // decode data to a binary string |
| if (Uint8Array && (data instanceof ArrayBuffer || data instanceof Uint8Array)) { |
| var |
| str = "" |
| , buf = new Uint8Array(data) |
| , i = 0 |
| , buf_len = buf.length |
| ; |
| for (; i < buf_len; i++) { |
| str += String.fromCharCode(buf[i]); |
| } |
| bb.push(str); |
| } else if (get_class(data) === "Blob" || get_class(data) === "File") { |
| if (FileReaderSync) { |
| var fr = new FileReaderSync; |
| bb.push(fr.readAsBinaryString(data)); |
| } else { |
| // async FileReader won't work as BlobBuilder is sync |
| throw new FileException("NOT_READABLE_ERR"); |
| } |
| } else if (data instanceof FakeBlob) { |
| if (data.encoding === "base64" && atob) { |
| bb.push(atob(data.data)); |
| } else if (data.encoding === "URI") { |
| bb.push(decodeURIComponent(data.data)); |
| } else if (data.encoding === "raw") { |
| bb.push(data.data); |
| } |
| } else { |
| if (typeof data !== "string") { |
| data += ""; // convert unsupported types to strings |
| } |
| // decode UTF-16 to binary string |
| bb.push(unescape(encodeURIComponent(data))); |
| } |
| }; |
| FBB_proto.getBlob = function(type) { |
| if (!arguments.length) { |
| type = null; |
| } |
| return new FakeBlob(this.data.join(""), type, "raw"); |
| }; |
| FBB_proto.toString = function() { |
| return "[object BlobBuilder]"; |
| }; |
| FB_proto.slice = function(start, end, type) { |
| var args = arguments.length; |
| if (args < 3) { |
| type = null; |
| } |
| return new FakeBlob( |
| this.data.slice(start, args > 1 ? end : this.data.length) |
| , type |
| , this.encoding |
| ); |
| }; |
| FB_proto.toString = function() { |
| return "[object Blob]"; |
| }; |
| return FakeBlobBuilder; |
| }(view)); |
| |
| return function Blob(blobParts, options) { |
| var type = options ? (options.type || "") : ""; |
| var builder = new BlobBuilder(); |
| if (blobParts) { |
| for (var i = 0, len = blobParts.length; i < len; i++) { |
| builder.append(blobParts[i]); |
| } |
| } |
| return builder.getBlob(type); |
| }; |
| }(self)); |
| |
| /*! @source http://purl.eligrey.com/github/FileSaver.js/blob/master/FileSaver.js */ |
| var saveAs=saveAs||(navigator.msSaveOrOpenBlob&&navigator.msSaveOrOpenBlob.bind(navigator))||(function(h){"use strict";var r=h.document,l=function(){return h.URL||h.webkitURL||h},e=h.URL||h.webkitURL||h,n=r.createElementNS("http://www.w3.org/1999/xhtml","a"),g=!h.externalHost&&"download" in n,j=function(t){var s=r.createEvent("MouseEvents");s.initMouseEvent("click",true,false,h,0,0,0,0,0,false,false,false,false,0,null);t.dispatchEvent(s)},o=h.webkitRequestFileSystem,p=h.requestFileSystem||o||h.mozRequestFileSystem,m=function(s){(h.setImmediate||h.setTimeout)(function(){throw s},0)},c="application/octet-stream",k=0,b=[],i=function(){var t=b.length;while(t--){var s=b[t];if(typeof s==="string"){e.revokeObjectURL(s)}else{s.remove()}}b.length=0},q=function(t,s,w){s=[].concat(s);var v=s.length;while(v--){var x=t["on"+s[v]];if(typeof x==="function"){try{x.call(t,w||t)}catch(u){m(u)}}}},f=function(t,u){var v=this,B=t.type,E=false,x,w,s=function(){var F=l().createObjectURL(t);b.push(F);return F},A=function(){q(v,"writestart progress write writeend".split(" "))},D=function(){if(E||!x){x=s(t)}if(w){w.location.href=x}else{window.open(x,"_blank")}v.readyState=v.DONE;A()},z=function(F){return function(){if(v.readyState!==v.DONE){return F.apply(this,arguments)}}},y={create:true,exclusive:false},C;v.readyState=v.INIT;if(!u){u="download"}if(g){x=s(t);n.href=x;n.download=u;j(n);v.readyState=v.DONE;A();return}if(h.chrome&&B&&B!==c){C=t.slice||t.webkitSlice;t=C.call(t,0,t.size,c);E=true}if(o&&u!=="download"){u+=".download"}if(B===c||o){w=h}if(!p){D();return}k+=t.size;p(h.TEMPORARY,k,z(function(F){F.root.getDirectory("saved",y,z(function(G){var H=function(){G.getFile(u,y,z(function(I){I.createWriter(z(function(J){J.onwriteend=function(K){w.location.href=I.toURL();b.push(I);v.readyState=v.DONE;q(v,"writeend",K)};J.onerror=function(){var K=J.error;if(K.code!==K.ABORT_ERR){D()}};"writestart progress write abort".split(" ").forEach(function(K){J["on"+K]=v["on"+K]});J.write(t);v.abort=function(){J.abort();v.readyState=v.DONE};v.readyState=v.WRITING}),D)}),D)};G.getFile(u,{create:false},z(function(I){I.remove();H()}),z(function(I){if(I.code===I.NOT_FOUND_ERR){H()}else{D()}}))}),D)}),D)},d=f.prototype,a=function(s,t){return new f(s,t)};d.abort=function(){var s=this;s.readyState=s.DONE;q(s,"abort")};d.readyState=d.INIT=0;d.WRITING=1;d.DONE=2;d.error=d.onwritestart=d.onprogress=d.onwrite=d.onabort=d.onerror=d.onwriteend=null;h.addEventListener("unload",i,false);return a}(self)); |
