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annotate OrthancStone/Samples/WebAssembly/RtViewer/RtViewerWasmApp.js @ 1512:244ad1e4e76a

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reorganization of folders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 16:21:02 +0200
parents Samples/WebAssembly/RtViewer/RtViewerWasmApp.js@3e644f6fadd4
children 307a805d0587
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1
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2 // This object wraps the functions exposed by the wasm module
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3
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4 const WasmModuleWrapper = function() {
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5 this._InitializeViewport = undefined;
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6 };
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7
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8 WasmModuleWrapper.prototype.Setup = function(Module) {
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9 this._SetArgument = Module.cwrap('SetArgument', null, [ 'string', 'string' ]);
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10 this._Initialize = Module.cwrap('Initialize', null, [ 'string' ]);
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11 };
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12
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13 WasmModuleWrapper.prototype.SetArgument = function(key, value) {
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14 this._SetArgument(key, value);
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15 };
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16
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17 WasmModuleWrapper.prototype.Initialize = function(canvasId) {
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18 this._Initialize(canvasId);
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19 };
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21 var wasmModuleWrapper = new WasmModuleWrapper();
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23 $(document).ready(function() {
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24
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25 window.addEventListener('WasmModuleInitialized', function() {
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27 // bind the C++ global functions
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28 wasmModuleWrapper.Setup(Module);
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29
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30 console.warn('Native C++ module initialized');
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32 // Loop over the GET arguments
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33 var parameters = window.location.search.substr(1);
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34 if (parameters != null && parameters != '') {
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35 var tokens = parameters.split('&');
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36 for (var i = 0; i < tokens.length; i++) {
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37 var arg = tokens[i].split('=');
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38 if (arg.length == 2) {
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39 // Send each GET argument to WebAssembly
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40 wasmModuleWrapper.SetArgument(arg[0], decodeURIComponent(arg[1]));
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41 }
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42 }
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43 }
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44 wasmModuleWrapper.Initialize();
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45 });
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46
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47 window.addEventListener('StoneException', function() {
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48 alert('Exception caught in C++ code');
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49 });
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51 var scriptSource;
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52
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53 if ('WebAssembly' in window) {
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54 console.warn('Loading WebAssembly');
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55 scriptSource = 'RtViewerWasm.js';
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56 } else {
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57 console.error('Your browser does not support WebAssembly!');
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58 }
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60 // Option 1: Loading script using plain HTML
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62 /*
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63 var script = document.createElement('script');
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64 script.src = scriptSource;
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65 script.type = 'text/javascript';
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66 document.body.appendChild(script);
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67 */
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68
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69 // Option 2: Loading script using AJAX (gives the opportunity to
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70 // report explicit errors)
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71
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72 axios.get(scriptSource)
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73 .then(function (response) {
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74 var script = document.createElement('script');
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75 script.innerHTML = response.data;
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76 script.type = 'text/javascript';
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77 document.body.appendChild(script);
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78 })
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79 .catch(function (error) {
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80 alert('Cannot load the WebAssembly framework');
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81 });
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82 });
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83
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84 // http://localhost:9979/rtviewer/index.html?loglevel=trace&ctseries=a04ecf01-79b2fc33-58239f7e-ad9db983-28e81afa&rtdose=830a69ff-8e4b5ee3-b7f966c8-bccc20fb-d322dceb&rtstruct=54460695-ba3885ee-ddf61ac0-f028e31d-a6e474d9
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85