Split jslib into multiple modules (#363)

* Split jslib into multiple modules

electron/src/utils.ts

@@ -0,0 +1,48 @@
+import { ipcRenderer } from 'electron';
+
+export type RendererMenuItem = {label?: string, type?: ('normal' | 'separator' | 'submenu' | 'checkbox' | 'radio'), click?: () => any};
+
+export function invokeMenu(menu: RendererMenuItem[]) {
+    const menuWithoutClick = menu.map(m => {
+        return { label: m.label, type: m.type };
+    });
+    ipcRenderer.invoke('openContextMenu', { menu: menuWithoutClick }).then((i: number) => {
+        if (i !== -1) {
+            menu[i].click();
+        }
+    });
+}
+
+export function isDev() {
+    // ref: https://github.com/sindresorhus/electron-is-dev
+    if ('ELECTRON_IS_DEV' in process.env) {
+        return parseInt(process.env.ELECTRON_IS_DEV, 10) === 1;
+    }
+    return (process.defaultApp || /node_modules[\\/]electron[\\/]/.test(process.execPath));
+}
+
+export function isAppImage() {
+    return process.platform === 'linux' && 'APPIMAGE' in process.env;
+}
+
+export function isMacAppStore() {
+    return process.platform === 'darwin' && process.mas && process.mas === true;
+}
+
+export function isWindowsStore() {
+    const isWindows = process.platform === 'win32';
+    let windowsStore = process.windowsStore;
+    if (isWindows && !windowsStore &&
+        process.resourcesPath.indexOf('8bitSolutionsLLC.bitwardendesktop_') > -1) {
+        windowsStore = true;
+    }
+    return isWindows && windowsStore === true;
+}
+
+export function isSnapStore() {
+    return process.platform === 'linux' && process.env.SNAP_USER_DATA != null;
+}
+
+export function isWindowsPortable() {
+    return process.platform === 'win32' && process.env.PORTABLE_EXECUTABLE_DIR != null;
+}