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annotate Platforms/Wasm/WasmWebService.js @ 299:3897f9f28cfa am-callable-and-promise

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backup work in progress: updated messaging framework with ICallable
author am@osimis.io
date Fri, 14 Sep 2018 16:44:01 +0200
parents 9afafb192180
children ed1a4302154f
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1 mergeInto(LibraryManager.library, {
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2 WasmWebService_ScheduleGetRequest: function(callback, url, headersInJsonString, payload) {
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3 // Directly use XMLHttpRequest (no jQuery) to retrieve the raw binary data
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4 // http://www.henryalgus.com/reading-binary-files-using-jquery-ajax/
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5 var xhr = new XMLHttpRequest();
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6 var url_ = UTF8ToString(url);
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7 var headersInJsonString_ = UTF8ToString(headersInJsonString);
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8
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9 xhr.open('GET', url_, true);
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10 xhr.responseType = 'arraybuffer';
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11 var headers = JSON.parse(headersInJsonString_);
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12 for (var key in headers) {
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13 xhr.setRequestHeader(key, headers[key]);
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14 }
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15 // console.log(xhr);
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16 xhr.onreadystatechange = function() {
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17 if (this.readyState == XMLHttpRequest.DONE) {
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18 if (xhr.status === 200) {
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19 // TODO - Is "new Uint8Array()" necessary? This copies the
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20 // answer to the WebAssembly stack, hence necessitating
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21 // increasing the TOTAL_STACK parameter of Emscripten
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22 WasmWebService_NotifySuccess(callback, url_, new Uint8Array(this.response),
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23 this.response.byteLength, payload);
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24 } else {
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25 WasmWebService_NotifyError(callback, url_, payload);
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26 }
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27 }
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28 }
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29
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30 xhr.send();
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31 },
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32
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33 WasmWebService_NewScheduleGetRequest: function(callableSuccess, callableFailure, url, headersInJsonString, payload) {
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34 // Directly use XMLHttpRequest (no jQuery) to retrieve the raw binary data
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35 // http://www.henryalgus.com/reading-binary-files-using-jquery-ajax/
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36 var xhr = new XMLHttpRequest();
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37 var url_ = UTF8ToString(url);
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38 var headersInJsonString_ = UTF8ToString(headersInJsonString);
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39
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40 xhr.open('GET', url_, true);
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41 xhr.responseType = 'arraybuffer';
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42 var headers = JSON.parse(headersInJsonString_);
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43 for (var key in headers) {
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44 xhr.setRequestHeader(key, headers[key]);
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45 }
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46 //console.log(xhr);
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47 xhr.onreadystatechange = function() {
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48 if (this.readyState == XMLHttpRequest.DONE) {
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49 if (xhr.status === 200) {
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50 // TODO - Is "new Uint8Array()" necessary? This copies the
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51 // answer to the WebAssembly stack, hence necessitating
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52 // increasing the TOTAL_STACK parameter of Emscripten
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53 console.log("WasmWebService success", this.response);
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54 WasmWebService_NewNotifySuccess(callableSuccess, url_, new Uint8Array(this.response),
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55 this.response.byteLength, payload);
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56 console.log("WasmWebService success 2", this.response);
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57 } else {
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58 console.log("WasmWebService failed");
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59 WasmWebService_NewNotifyError(callableFailure, url_, payload);
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60 }
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61 }
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62 }
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63
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64 xhr.send();
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65 },
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66
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67 WasmWebService_SchedulePostRequest: function(callback, url, headersInJsonString, body, bodySize, payload) {
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68 var xhr = new XMLHttpRequest();
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69 var url_ = UTF8ToString(url);
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70 var headersInJsonString_ = UTF8ToString(headersInJsonString);
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71 xhr.open('POST', url_, true);
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72 xhr.responseType = 'arraybuffer';
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73 xhr.setRequestHeader('Content-type', 'application/octet-stream');
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74
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75 var headers = JSON.parse(headersInJsonString_);
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76 for (var key in headers) {
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77 xhr.setRequestHeader(key, headers[key]);
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78 }
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80 xhr.onreadystatechange = function() {
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81 if (this.readyState == XMLHttpRequest.DONE) {
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82 if (xhr.status === 200) {
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83 WasmWebService_NotifySuccess(callback, url_, new Uint8Array(this.response),
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84 this.response.byteLength, payload);
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85 } else {
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86 WasmWebService_NotifyError(callback, url_, payload);
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87 }
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88 }
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89 }
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90
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91 xhr.send(new Uint8ClampedArray(HEAPU8.buffer, body, bodySize));
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92 }
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93 });