Learn the Basics

Svelte NodeGui uses native components instead of web based components as building blocks. So to understand the basic structure of a Svelte NodeGui app, you need to be familiar with Javascript or Typescript and Svelte. This tutorial is aimed at everyone who has some web experience with web development.

Svelte NodeGui development in a nutshell

As far as development is concerned, an Svelte NodeGui application is essentially a Node.js application. The starting point is a package.json that is identical to that of a Node.js module. A most basic Svelte NodeGui app would have the following folder structure:

your-app/

├── package.json

├── index.js

What's going on here?

Firstly, we are running a Node.js app and not a browser based app. This means we do not have access to any browser APIs. The window you see is actually a native widget created by Qt. Window component is essentially a lightweight javascript wrapper over NodeGui's QMainWindow, which internally is Qt's QMainWindow. Hence every prop you set on Window instance is actually affecting a native window widget. This is very light weight as compared to browser based solutions and hence is more closer to the Operating system.

Trying out the starter project

Clone and run the code by using the nodegui/svelte-nodegui-starter repository.

Note: Running this requires Git and npm.

# Clone the repository

$ git clone https://github.com/nodegui/svelte-nodegui-starter

# Go into the repository

$ cd svelte-nodegui-starter

# Install dependencies

$ npm install

# Run the dev server

$ npm run dev

# Run the app on a separate terminal tab or window

$ npm start

What else other than a basic window?

Svelte NodeGui has support for basic components like View (similar to div), CheckBox, PushButton and many more. You can take a look at the list of native widgets that Svelte NodeGui currently supports here : Native widgets in Svelte NodeGui. With time more native components and APIs will be added to Svelte NodeGui. Apart from modules in Svelte NodeGui, you also have access to the entire node modules ecosystem. Thus, any node module that you can use with Node.js, can be used with Svelte NodeGui. This makes it extremely powerful.

Fine, I want something more custom and beautiful than just native looking widgets. What do I do?

To make things more beautiful, you will have to learn about styling. Lets take a look at that next.