Mercurial > hg > orthanc-stone
annotate Applications/Samples/WebAssembly/SingleFrameViewer/SingleFrameViewerApp.js @ 1858:be88206f8d78
display what() of C++ exceptions on error while processing a message
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 06 Sep 2021 22:17:32 +0200 |
parents | 9ac2a65d4172 |
children | 3889ae96d2e9 |
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1 /** |
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2 * Stone of Orthanc |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 |
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22 // This object wraps the functions exposed by the wasm module |
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23 |
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24 const WasmModuleWrapper = function() { |
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25 this._InitializeViewport = undefined; |
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26 this._LoadFromOrthanc = undefined; |
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27 }; |
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28 |
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29 WasmModuleWrapper.prototype.Setup = function(Module) { |
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30 this._InitializeViewport = Module.cwrap('InitializeViewport', null, [ 'string' ]); |
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31 this._LoadFromOrthanc = Module.cwrap('LoadFromOrthanc', null, [ 'string', 'int' ]); |
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32 }; |
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33 |
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34 WasmModuleWrapper.prototype.InitializeViewport = function(canvasId) { |
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35 this._InitializeViewport(canvasId); |
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36 }; |
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37 |
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38 WasmModuleWrapper.prototype.LoadFromOrthanc = function(instance, frame) { |
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39 this._LoadFromOrthanc(instance, frame); |
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40 }; |
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41 |
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42 var wasmModuleWrapper = new WasmModuleWrapper(); |
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43 |
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44 $(document).ready(function() { |
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45 |
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46 window.addEventListener('WasmModuleInitialized', function() { |
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47 wasmModuleWrapper.Setup(Module); |
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48 console.warn('Native C++ module initialized'); |
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49 |
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50 wasmModuleWrapper.InitializeViewport('viewport'); |
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51 }); |
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52 |
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53 window.addEventListener('StoneException', function() { |
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54 alert('Exception caught in C++ code'); |
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55 }); |
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56 |
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57 var scriptSource; |
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58 |
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59 if ('WebAssembly' in window) { |
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60 console.warn('Loading WebAssembly'); |
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61 scriptSource = 'SingleFrameViewerWasm.js'; |
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62 } else { |
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63 console.error('Your browser does not support WebAssembly!'); |
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64 } |
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65 |
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66 // Option 1: Loading script using plain HTML |
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67 |
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68 /* |
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69 var script = document.createElement('script'); |
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70 script.src = scriptSource; |
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71 script.type = 'text/javascript'; |
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72 document.body.appendChild(script); |
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73 */ |
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74 |
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75 // Option 2: Loading script using AJAX (gives the opportunity to |
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76 // report explicit errors) |
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77 |
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78 axios.get(scriptSource) |
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79 .then(function (response) { |
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80 var script = document.createElement('script'); |
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81 script.innerHTML = response.data; |
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82 script.type = 'text/javascript'; |
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83 document.body.appendChild(script); |
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84 }) |
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85 .catch(function (error) { |
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86 alert('Cannot load the WebAssembly framework'); |
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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 $('#orthancLoad').click(function() { |
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92 wasmModuleWrapper.LoadFromOrthanc($('#orthancInstance').val(), |
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93 $('#orthancFrame').val()); |
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94 }); |