Mercurial > hg > orthanc-stone

comparison Applications/Samples/WebAssembly/RtViewer/RtViewerWasmApp.js @ 1538:d1806b4e4839

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moving OrthancStone/Samples/ as Applications/Samples/
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Aug 2020 13:24:38 +0200
parents OrthancStone/Samples/WebAssembly/RtViewer/RtViewerWasmApp.js@307a805d0587
children 8c5f9864545f
comparison
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1537:de8cf5859e84 1538:d1806b4e4839
1
2 // This object wraps the functions exposed by the wasm module
3
4 const WasmModuleWrapper = function() {
5 this._InitializeViewport = undefined;
6 };
7
8 WasmModuleWrapper.prototype.Setup = function(Module) {
9 this._SetArgument = Module.cwrap('SetArgument', null, [ 'string', 'string' ]);
10 this._Initialize = Module.cwrap('Initialize', null, [ 'string' ]);
11 };
12
13 WasmModuleWrapper.prototype.SetArgument = function(key, value) {
14 this._SetArgument(key, value);
15 };
16
17 WasmModuleWrapper.prototype.Initialize = function(canvasId) {
18 this._Initialize(canvasId);
19 };
20
21 var wasmModuleWrapper = new WasmModuleWrapper();
22
23 $(document).ready(function() {
24
25 window.addEventListener('WasmModuleInitialized', function() {
26
27 // bind the C++ global functions
28 wasmModuleWrapper.Setup(Module);
29
30 console.warn('Native C++ module initialized');
31
32 // Loop over the GET arguments
33 var parameters = window.location.search.substr(1);
34 if (parameters != null && parameters != '') {
35 var tokens = parameters.split('&');
36 for (var i = 0; i < tokens.length; i++) {
37 var arg = tokens[i].split('=');
38 if (arg.length == 2) {
39 // Send each GET argument to WebAssembly
40 wasmModuleWrapper.SetArgument(arg[0], decodeURIComponent(arg[1]));
41 }
42 }
43 }
44 wasmModuleWrapper.Initialize();
45 });
46
47 window.addEventListener('StoneException', function() {
48 alert('Exception caught in C++ code');
49 });
50
51 var scriptSource;
52
53 if ('WebAssembly' in window) {
54 console.warn('Loading WebAssembly');
55 scriptSource = 'RtViewerWasm.js';
56 } else {
57 console.error('Your browser does not support WebAssembly!');
58 }
59
60 // Option 1: Loading script using plain HTML
61
62 /*
63 var script = document.createElement('script');
64 script.src = scriptSource;
65 script.type = 'text/javascript';
66 document.body.appendChild(script);
67 */
68
69 // Option 2: Loading script using AJAX (gives the opportunity to
70 // report explicit errors)
71
72 axios.get(scriptSource)
73 .then(function (response) {
74 var script = document.createElement('script');
75 script.innerHTML = response.data;
76 script.type = 'text/javascript';
77 document.body.appendChild(script);
78 })
79 .catch(function (error) {
80 alert('Cannot load the WebAssembly framework');
81 });
82 });
83
84 // http://localhost:9979/stone-rtviewer/index.html?loglevel=trace&ctseries=a04ecf01-79b2fc33-58239f7e-ad9db983-28e81afa&rtdose=830a69ff-8e4b5ee3-b7f966c8-bccc20fb-d322dceb&rtstruct=54460695-ba3885ee-ddf61ac0-f028e31d-a6e474d9
85