Allow attaching files in Electron ap

ReactNativeClient/lib/shim.js

@@ -2,6 +2,7 @@ let shim = {};
 
 shim.isNode = () => {
 	if (typeof process === 'undefined') return false;
+	if (shim.isElectron()) return true;
 	return process.title == 'node';
 };
 
@@ -9,6 +10,26 @@ shim.isReactNative = () => {
 	return !shim.isNode();
 };
 
+// https://github.com/cheton/is-electron
+shim.isElectron = () => {
+    // Renderer process
+    if (typeof window !== 'undefined' && typeof window.process === 'object' && window.process.type === 'renderer') {
+        return true;
+    }
+
+    // Main process
+    if (typeof process !== 'undefined' && typeof process.versions === 'object' && !!process.versions.electron) {
+        return true;
+    }
+
+    // Detect the user agent when the `nodeIntegration` option is set to true
+    if (typeof navigator === 'object' && typeof navigator.userAgent === 'string' && navigator.userAgent.indexOf('Electron') >= 0) {
+        return true;
+    }
+
+    return false;
+}
+
 shim.fetch = typeof fetch !== 'undefined' ? fetch : null;
 shim.FormData = typeof FormData !== 'undefined' ? FormData : null;
 shim.fs = null;
@@ -22,5 +43,6 @@ shim.clearInterval = function(id) {
 	return clearInterval(id);
 }
 shim.detectAndSetLocale = null;
+shim.attachFileToNote = async (note, filePath) => {}
 
 module.exports = { shim };