Mercurial > hg > orthanc-stone
annotate Samples/WebAssembly/SingleFrameViewer/SingleFrameViewerApp.js @ 1426:1e132fe7090e
fix dynamic linking
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 15 May 2020 13:04:34 +0200 |
parents | 27e0a00bd3e8 |
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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 this._LoadFromOrthanc = undefined; |
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7 }; |
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8 |
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9 WasmModuleWrapper.prototype.Setup = function(Module) { |
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10 this._InitializeViewport = Module.cwrap('InitializeViewport', null, [ 'string' ]); |
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11 this._LoadFromOrthanc = Module.cwrap('LoadFromOrthanc', null, [ 'string', 'int' ]); |
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12 }; |
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13 |
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14 WasmModuleWrapper.prototype.InitializeViewport = function(canvasId) { |
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15 this._InitializeViewport(canvasId); |
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16 }; |
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17 |
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18 WasmModuleWrapper.prototype.LoadFromOrthanc = function(instance, frame) { |
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19 this._LoadFromOrthanc(instance, frame); |
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20 }; |
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21 |
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22 var wasmModuleWrapper = new WasmModuleWrapper(); |
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23 |
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24 $(document).ready(function() { |
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25 |
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26 window.addEventListener('WasmModuleInitialized', function() { |
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27 wasmModuleWrapper.Setup(Module); |
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28 console.warn('Native C++ module initialized'); |
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29 |
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30 wasmModuleWrapper.InitializeViewport('viewport'); |
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31 }); |
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32 |
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33 window.addEventListener('StoneException', function() { |
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34 alert('Exception caught in C++ code'); |
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35 }); |
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36 |
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37 var scriptSource; |
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38 |
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39 if ('WebAssembly' in window) { |
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40 console.warn('Loading WebAssembly'); |
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41 scriptSource = 'SingleFrameViewerWasm.js'; |
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42 } else { |
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43 console.error('Your browser does not support WebAssembly!'); |
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44 } |
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45 |
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46 // Option 1: Loading script using plain HTML |
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47 |
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48 /* |
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49 var script = document.createElement('script'); |
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50 script.src = scriptSource; |
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51 script.type = 'text/javascript'; |
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52 document.body.appendChild(script); |
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53 */ |
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54 |
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55 // Option 2: Loading script using AJAX (gives the opportunity to |
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56 // report explicit errors) |
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57 |
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58 axios.get(scriptSource) |
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59 .then(function (response) { |
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60 var script = document.createElement('script'); |
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61 script.innerHTML = response.data; |
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62 script.type = 'text/javascript'; |
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63 document.body.appendChild(script); |
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64 }) |
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65 .catch(function (error) { |
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66 alert('Cannot load the WebAssembly framework'); |
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67 }); |
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68 }); |
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69 |
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70 |
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71 $('#orthancLoad').click(function() { |
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72 wasmModuleWrapper.LoadFromOrthanc($('#orthancInstance').val(), |
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73 $('#orthancFrame').val()); |
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74 }); |