Docusaurus Native Ideal Image Plugin

A docuaurus plugin for pre-processing images to multiple formats, sizes and low quality image placeholders, replacing ideal-image

Note: this is still working in progress

Usage

First install

npm install docusaurus-plugin-native-ideal-image

And add the configuration to docusaurus.config.js/docusaurus.config.ts

const config = {
    ...
    plugins: ['native-ideal-image'],
}

Then you can use it in your project like this

import image from 'ideal-img!../images/some-image.jpeg'

<NativeIdealImage img={image} />

// or with require
<NativeIdealImage img={require('ideal-img!../images/some-image.jpeg')} />

To use it for markdown images by default, add this to the configuration

import { nativeIdealImageRemarkPlugin } from 'docusaurus-plugin-native-ideal-image'

const config = {
    presets: [
        [
            'classic',
            {
                // The same for docs and blog
                pages: {
                    remarkPlugins: [nativeIdealImageRemarkPlugin],
                },
                ...
            },
        ],
    ],
}

By default, this will transform the image into a jpeg source and a webp source and also a webp format low quality placeholder, and end up like this

<picture
    class="native-ideal-img"
    style="--lqip: url(data:image/webp;base64,UklGRj4AAABXRUJQVlA4IDIAAADQAQCdASoQAAwABUB8JZQAAudcoVPyIAD+uVyF4iJZsGTWpdieB7utExa6oMeh0PusAA==);"
>
    <source srcset="assets/native-ideal-image/some-image-b0600-2160.webp" type="image/webp" />
    <img loading="lazy" src="assets/native-ideal-image/some-image-6ee75-2160.jpeg" width="2160" height="1620" />
</picture>

You can use query strings to change the output, currently you can do

• w: changes the output sizes
• formats: changes the formats used
• presets: use a preset set in the config

Example: import image from 'ideal-img!../images/some-image.jpeg?w=800,1200&formats=avif,webp'

You can learn more in the example directory or see some live examples in https://legend-master.github.io/docusaurus-plugin-native-ideal-image

TypeScript

To use with TypeScript, put "docusaurus-plugin-native-ideal-image/types" in compilerOptions > types in your tsconfig.json or put /// <reference type="docusaurus-plugin-native-ideal-image/types" in a .d.ts file to get @theme/NativeIdealImage and ideal-img!* type