Mercurial > hg > orthanc-stone
view Applications/Samples/WebAssembly/SingleFrameViewer/SingleFrameViewerApp.js @ 1842:9568082ee013
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 24 Jun 2021 14:19:36 +0200 |
parents | 9ac2a65d4172 |
children | 3889ae96d2e9 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2021 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ // This object wraps the functions exposed by the wasm module const WasmModuleWrapper = function() { this._InitializeViewport = undefined; this._LoadFromOrthanc = undefined; }; WasmModuleWrapper.prototype.Setup = function(Module) { this._InitializeViewport = Module.cwrap('InitializeViewport', null, [ 'string' ]); this._LoadFromOrthanc = Module.cwrap('LoadFromOrthanc', null, [ 'string', 'int' ]); }; WasmModuleWrapper.prototype.InitializeViewport = function(canvasId) { this._InitializeViewport(canvasId); }; WasmModuleWrapper.prototype.LoadFromOrthanc = function(instance, frame) { this._LoadFromOrthanc(instance, frame); }; var wasmModuleWrapper = new WasmModuleWrapper(); $(document).ready(function() { window.addEventListener('WasmModuleInitialized', function() { wasmModuleWrapper.Setup(Module); console.warn('Native C++ module initialized'); wasmModuleWrapper.InitializeViewport('viewport'); }); window.addEventListener('StoneException', function() { alert('Exception caught in C++ code'); }); var scriptSource; if ('WebAssembly' in window) { console.warn('Loading WebAssembly'); scriptSource = 'SingleFrameViewerWasm.js'; } else { console.error('Your browser does not support WebAssembly!'); } // Option 1: Loading script using plain HTML /* var script = document.createElement('script'); script.src = scriptSource; script.type = 'text/javascript'; document.body.appendChild(script); */ // Option 2: Loading script using AJAX (gives the opportunity to // report explicit errors) axios.get(scriptSource) .then(function (response) { var script = document.createElement('script'); script.innerHTML = response.data; script.type = 'text/javascript'; document.body.appendChild(script); }) .catch(function (error) { alert('Cannot load the WebAssembly framework'); }); }); $('#orthancLoad').click(function() { wasmModuleWrapper.LoadFromOrthanc($('#orthancInstance').val(), $('#orthancFrame').val()); });