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https://github.com/dashkan/ng-electron-devkit

Angular Webpack Build Facade for Electron
https://github.com/dashkan/ng-electron-devkit

angular angular-cli angular6 electron

Last synced: about 2 months ago
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Angular Webpack Build Facade for Electron

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# Angular Webpack Build Facade for Electron
Allows targeting electron renderer in Angular 6 applications.

## Installation
npm install ng-electron-devkit --save-dev

## Configuration

1. Install electron and cpx in your project
```sh
npm install electron --save
npm install cpx --save-dev
```

2. Create electron main application (src/electron/index.ts)
```typescript
import {app, BrowserWindow, ipcMain} from 'electron';

if (process.mas) app.setName('Angular 6 / Electron Demo')

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let mainWindow: BrowserWindow

function createWindow () {
// Create the browser window.
mainWindow = new BrowserWindow({width: 800, height: 600})

// and load the index.html of the app.
mainWindow.loadFile('index.html')

// Open the DevTools.
// mainWindow.webContents.openDevTools()

// Emitted when the window is closed.
mainWindow.on('closed', () => {
// Dereference the window object, usually you would store windows
// in an array if your app supports multi windows, this is the time
// when you should delete the corresponding element.
mainWindow = null
})
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow)

// Quit when all windows are closed.
app.on('window-all-closed', () => {
// On OS X it is common for applications and their menu bar
// to stay active until the user quits explicitly with Cmd + Q
if (process.platform !== 'darwin') {
app.quit()
}
})

app.on('activate', () => {
// On OS X it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
console.log('activated');
if (mainWindow === null) {
createWindow()
}
})
```

3. Create tsconfig.json for electron main application (src/electron/tsconfig.json). Note: outDir must resolve to the same path that outputPath does in step #10
```json
{
"compilerOptions": {
"target": "es6",
"module": "commonjs",
"outDir": "../../dist/electron",
"strict": false,
"esModuleInterop": true
}
}
```

4. Add isElectron: false value to src/environments/environment.ts and src/environments/environment.prod.ts

5. Add default electron environment (src/environments/environment.electron.ts)
```typescript
// This file can be replaced during build by using the `fileReplacements` array.
// `ng build ---prod` replaces `environment.ts` with `environment.prod.ts`.
// The list of file replacements can be found in `angular.json`.

export const environment = {
production: false,
isElectron: true
};

/*
* In development mode, to ignore zone related error stack frames such as
* `zone.run`, `zoneDelegate.invokeTask` for easier debugging, you can
* import the following file, but please comment it out in production mode
* because it will have performance impact when throw error
*/
import 'zone.js/dist/zone-error'; // Included with Angular CLI.
```

6. Add production electron environment (src/environments/environment.electron-prod.ts)
```typescript
export const environment = {
production: true,
isElectron: true
};
```

7. Electron does not support reloading html5 routes. Check to see if we are running in electron and set routing to use hash. Update src/app/app-routing.module.ts
```typescript
import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { environment } from '../environments/environment';

const routes: Routes = [];

@NgModule({
imports: [RouterModule.forRoot(routes, { useHash: environment.isElectron })],
exports: [RouterModule]
})
export class AppRoutingModule { }
```

8. Create new electron specific polyfill file (src/polyfills-electron.ts)
```typescript
/**
* This file includes polyfills needed by Angular and is loaded before the app.
* You can add your own extra polyfills to this file.
*
* This file is divided into 2 sections:
* 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
* 2. Application imports. Files imported after ZoneJS that should be loaded before your main
* file.
*
* The current setup is for so-called "evergreen" browsers; the last versions of browsers that
* automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
* Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
*
* Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
*/

/***************************************************************************************************
* BROWSER POLYFILLS
*/

/** IE9, IE10 and IE11 requires all of the following polyfills. **/
// import 'core-js/es6/symbol';
// import 'core-js/es6/object';
// import 'core-js/es6/function';
// import 'core-js/es6/parse-int';
// import 'core-js/es6/parse-float';
// import 'core-js/es6/number';
// import 'core-js/es6/math';
// import 'core-js/es6/string';
// import 'core-js/es6/date';
// import 'core-js/es6/array';
// import 'core-js/es6/regexp';
// import 'core-js/es6/map';
// import 'core-js/es6/weak-map';
// import 'core-js/es6/set';

/** Evergreen browsers require these. **/
// Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
import 'core-js/es7/reflect';

/**
* Web Animations `@angular/platform-browser/animations`
* Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
* Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
**/
// import 'web-animations-js'; // Run `npm install --save web-animations-js`.

/**
* By default, zone.js will patch all possible macroTask and DomEvents
* user can disable parts of macroTask/DomEvents patch by setting following flags
*/

// (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
// (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
// (window as any).__zone_symbol__BLACK_LISTED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames

/*
* in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
* with the following flag, it will bypass `zone.js` patch for IE/Edge
*/
// (window as any).__Zone_enable_cross_context_check = true;

/***************************************************************************************************
* Zone JS is required by default for Angular itself.
*/
import 'zone.js/dist/zone-mix'; // Included with Angular CLI.
import 'zone.js/dist/zone-patch-electron';

/***************************************************************************************************
* APPLICATION IMPORTS
*/
```

9. Update scripts in package.json to build electron project
```json
"scripts": {
"ng": "ng",
"start": "ng serve",
"start:electron": "electron dist/electron",
"build": "ng build",
"build:electron-main": "tsc -p src/electron",
"postbuild:electron-main": "cpx package.json dist/electron",
"build:electron-renderer": "ng build electron",
"build:electron": "npm run build:electron-renderer && npm run build:electron-main",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
```

10. Create a new project config in ***angular.json***.
- Copy contents from initial project
- Rename the project to electron
- Change ***architect/build/builder*** from ***@angular-devkit/build-angular:browser*** to *ng-electron-devkit:renderer*
- Change ***architect/build/options/outputPath*** to dist/electron
- Create default environment for electron project ***architect/build/options/fileReplacements***
```json
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.electron.ts"
}
]
```
- Remove serve section / property
- (OPTIONAL) If using routing set ***architect/build/options/baseRef*** to an empty string.

Sample angular.json electron project
```json
"electron": {
"root": "",
"sourceRoot": "src",
"projectType": "application",
"prefix": "app",
"schematics": {
"@schematics/angular:component": {
"styleext": "scss"
}
},
"architect": {
"build": {
"builder": "ng-electron-devkit:renderer",
"options": {
"outputPath": "dist/electron",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills-electron.ts",
"tsConfig": "src/tsconfig.app.json",
"assets": [
"src/favicon.ico",
"src/assets"
],
"styles": [
"src/styles.scss"
],
"scripts": [],
"baseHref": "",
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.electron.ts"
},
{
"replace": "src/app/ipc.service.ts",
"with": "src/app/ipc.service-electron.ts"
}
]
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.electron-prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"aot": true,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "sample:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "src/tsconfig.spec.json",
"karmaConfig": "src/karma.conf.js",
"styles": [
"src/styles.scss"
],
"scripts": [],
"assets": [
"src/favicon.ico",
"src/assets"
]
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"src/tsconfig.app.json",
"src/tsconfig.spec.json"
],
"exclude": [
"**/node_modules/**"
]
}
}
}
}
```

11. Add main property to package.json
```json
"main": "index.js"
```

12. Build your project
```sh
npm run build:electron
```

12. Launch your electron application!!!!
```sh
npm run start:electron
```

## Sample Application

Clone this repository and checkout the [sample](./sample)