Mercurial > hg > orthanc-stone

comparison Platforms/Wasm/wasm-application-runner.ts @ 287:2038d76bf13f am-2

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interaction with HTML/JS
author am@osimis.io
date Thu, 30 Aug 2018 11:36:36 +0200
parents
children 3897f9f28cfa
comparison
equal deleted inserted replaced
286:6b3d91857b96 287:2038d76bf13f
1 ///<reference path='stone-framework-loader.ts'/>
2 ///<reference path='wasm-viewport.ts'/>
3
4 if (!('WebAssembly' in window)) {
5 alert('Sorry, your browser does not support WebAssembly :(');
6 }
7
8 declare var StoneFrameworkModule : Stone.Framework;
9
10 // global functions
11 var WasmWebService_NotifyError: Function = null;
12 var WasmWebService_NotifySuccess: Function = null;
13 var WasmWebService_SetBaseUri: Function = null;
14 var NotifyUpdateContent: Function = null;
15 var SetStartupParameter: Function = null;
16 var CreateWasmApplication: Function = null;
17 var CreateCppViewport: Function = null;
18 var ReleaseCppViewport: Function = null;
19 var StartWasmApplication: Function = null;
20 var SendMessageToStoneApplication: Function = null;
21
22
23 function UpdateContentThread() {
24 if (NotifyUpdateContent != null) {
25 NotifyUpdateContent();
26 }
27
28 setTimeout(UpdateContentThread, 100); // Update the viewport content every 100ms if need be
29 }
30
31
32 function GetUriParameters() {
33 var parameters = window.location.search.substr(1);
34
35 if (parameters != null &&
36 parameters != '') {
37 var result = {};
38 var tokens = parameters.split('&');
39
40 for (var i = 0; i < tokens.length; i++) {
41 var tmp = tokens[i].split('=');
42 if (tmp.length == 2) {
43 result[tmp[0]] = decodeURIComponent(tmp[1]);
44 }
45 }
46
47 return result;
48 }
49 else {
50 return {};
51 }
52 }
53
54 // function UpdateWebApplication(statusUpdateMessage: string) {
55 // console.log(statusUpdateMessage);
56 // }
57
58 function _InitializeWasmApplication(canvasId: string, orthancBaseUrl: string): void {
59
60 /************************************** */
61 CreateWasmApplication();
62 WasmWebService_SetBaseUri(orthancBaseUrl);
63
64
65 // parse uri and transmit the parameters to the app before initializing it
66 var parameters = GetUriParameters();
67
68 for (var key in parameters) {
69 if (parameters.hasOwnProperty(key)) {
70 SetStartupParameter(key, parameters[key]);
71 }
72 }
73
74 StartWasmApplication();
75 /************************************** */
76
77 UpdateContentThread();
78 }
79
80 function InitializeWasmApplication(wasmModuleName: string, orthancBaseUrl: string) {
81
82 Stone.Framework.Configure(wasmModuleName);
83
84 // Wait for the Orthanc Framework to be initialized (this initializes
85 // the WebAssembly environment) and then, create and initialize the Wasm application
86 Stone.Framework.Initialize(true, function () {
87
88 console.log("Connecting C++ methods to JS methods");
89
90 SetStartupParameter = StoneFrameworkModule.cwrap('SetStartupParameter', null, ['string', 'string']);
91 CreateWasmApplication = StoneFrameworkModule.cwrap('CreateWasmApplication', null, ['number']);
92 CreateCppViewport = StoneFrameworkModule.cwrap('CreateCppViewport', 'number', []);
93 ReleaseCppViewport = StoneFrameworkModule.cwrap('ReleaseCppViewport', null, ['number']);
94 StartWasmApplication = StoneFrameworkModule.cwrap('StartWasmApplication', null, ['number']);
95
96 WasmWebService_NotifySuccess = StoneFrameworkModule.cwrap('WasmWebService_NotifySuccess', null, ['number', 'string', 'array', 'number', 'number']);
97 WasmWebService_NotifyError = StoneFrameworkModule.cwrap('WasmWebService_NotifyError', null, ['number', 'string', 'number']);
98 WasmWebService_SetBaseUri = StoneFrameworkModule.cwrap('WasmWebService_SetBaseUri', null, ['string']);
99 NotifyUpdateContent = StoneFrameworkModule.cwrap('NotifyUpdateContent', null, []);
100
101 SendMessageToStoneApplication = StoneFrameworkModule.cwrap('SendMessageToStoneApplication', 'string', ['string']);
102
103 console.log("Connecting C++ methods to JS methods - done");
104
105 // Prevent scrolling
106 document.body.addEventListener('touchmove', function (event) {
107 event.preventDefault();
108 }, false);
109
110 _InitializeWasmApplication("canvas", orthancBaseUrl);
111 });
112 }