1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | const commons_js_1 = require("./commons.js");
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4 | const withNativeBlob = typeof Blob === "function" ||
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5 | (typeof Blob !== "undefined" &&
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6 | Object.prototype.toString.call(Blob) === "[object BlobConstructor]");
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7 | const withNativeArrayBuffer = typeof ArrayBuffer === "function";
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8 | // ArrayBuffer.isView method is not defined in IE10
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9 | const isView = obj => {
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10 | return typeof ArrayBuffer.isView === "function"
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11 | ? ArrayBuffer.isView(obj)
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12 | : obj && obj.buffer instanceof ArrayBuffer;
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13 | };
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14 | const encodePacket = ({ type, data }, supportsBinary, callback) => {
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15 | if (withNativeBlob && data instanceof Blob) {
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16 | if (supportsBinary) {
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17 | return callback(data);
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18 | }
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19 | else {
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20 | return encodeBlobAsBase64(data, callback);
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21 | }
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22 | }
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23 | else if (withNativeArrayBuffer &&
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24 | (data instanceof ArrayBuffer || isView(data))) {
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25 | if (supportsBinary) {
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26 | return callback(data);
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27 | }
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28 | else {
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29 | return encodeBlobAsBase64(new Blob([data]), callback);
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30 | }
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31 | }
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32 | // plain string
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33 | return callback(commons_js_1.PACKET_TYPES[type] + (data || ""));
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34 | };
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35 | const encodeBlobAsBase64 = (data, callback) => {
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36 | const fileReader = new FileReader();
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37 | fileReader.onload = function () {
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38 | const content = fileReader.result.split(",")[1];
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39 | callback("b" + content);
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40 | };
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41 | return fileReader.readAsDataURL(data);
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42 | };
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43 | exports.default = encodePacket;
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