66 lines
1.7 KiB
JavaScript
66 lines
1.7 KiB
JavaScript
"use strict";
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var Object = require("./object");
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var Blob = Object.inherit({
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"className": "Blob",
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"constructor": function(/*ArrayBuffer*/data) {
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Object.fn.constructor.call(this);
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data = data || new ArrayBuffer(0);
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this._data = data;
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},
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"==": function(other) {
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if (this.getType() !== other.getType()) {
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return false;
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}
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return this.size() == other.size(); //TODO let's pretend one shall never wish to compare blobs)
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},
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"base64": function() {
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var arr = new Uint8Array(this._data);
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var bin = "";
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for (var i = 0; i < arr.length; ++i) {
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bin += String.fromCharCode(arr[i]);
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}
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return btoa(bin);
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},
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"clone": function() {
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var clone = new Blob(this._data.slice(0));
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return clone;
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},
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"deserialize": function(ba) {
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var length = ba.pop32();
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this._data = new ArrayBuffer(length);
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var view = new Uint8Array(this._data);
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for (var i = 0; i < length; ++i) {
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view[i] = ba.pop8();
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}
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},
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"length": function() {
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return this._data.byteLength;
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},
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"serialize": function(ba) {
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ba.push32(this._data.byteLength);
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var view = new Uint8Array(this._data);
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for (var i = 0; i < view.length; ++i) {
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ba.push8(view[i]);
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}
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},
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"size": function() {
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return this._data.byteLength + 4;
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},
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"toString": function() {
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return "File <" + this._data.byteLength + ">";
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},
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"valueOf": function() {
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return this._data;
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}
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});
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module.exports = Blob;
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