added support for Electron platform

src/electron/FileOpener2.js

@@ -0,0 +1,35 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2020 pwlin - pwlin05@gmail.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+// https://www.electronjs.org/docs/api/shell
+const { shell } = global.require('electron');
+module.exports = {
+  open: function (onSuccess, onError, fileName) {
+    var opn = shell.openItem(fileName[0]);
+    if (opn === true) {
+      onSuccess(true);
+    } else {
+      onError({'status': 0, 'message': 'Failed opening file.'});
+    }
+  }
+};
+require('cordova/exec/proxy').add('FileOpener2', module.exports);