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Turbo Mount

Gem Version

TurboMount is a simple library that allows you to add highly interactive components from React, Vue, Svelte, and other frameworks to your Hotwire application.

Table of Contents

Built by Evil Martians

Installation

To install Turbo Mount, add the following line to your Gemfile and run bundle install:

gem "turbo-mount"

Automatic Installation

Run the following command to install the necessary files:

bin/rails generate turbo_mount:install

This will add turbo-mount package and framework dependencies to your package.json or importmap.rb, and create the Turbo Mount initialization file.

Manual Installation

You can also install the necessary JavaScript files manually.

If your project utilizes build tools such as Vite, also install the turbo-mount package:

npm install turbo-mount
# or with yarn
yarn add turbo-mount

# and the desired framework
npm install react react-dom
# or
npm install vue
# or
npm install svelte

If you're using Vite, don't forget to add framework-specific plugins to your vite.config.js.

Importmaps

To use TurboMount with importmaps, you need to pin the necessary JavaScript files in your config/importmap.rb:

pin "turbo-mount", to: "turbo-mount.min.js"
pin "turbo-mount/react", to: "turbo-mount/react.min.js"

This ensures that turbo-mount and its plugins are available in your application.

Also pin the desired framework:

bin/importmap pin react react-dom react-dom/client
# or
bin/importmap pin vue
# or
bin/importmap pin svelte

Note: Importmap-only mode is quite limited in terms of JavaScript dependencies. If you're using a more complex setup, consider using a bundler like Vite.

Usage

Initialization

To begin using TurboMount, start by initializing the library and registering the components you intend to use. Here's how to set it up with a React plugin:

import { TurboMount } from "turbo-mount";
import { registerComponent } from "turbo-mount/react";
import { HexColorPicker } from 'react-colorful';

const turboMount = new TurboMount(); // or new TurboMount({ application })

registerComponent(turboMount, "HexColorPicker", HexColorPicker);

If you prefer not to specify the application explicitly, TurboMount can automatically detect or initialize it. Turbo Mount uses the window.Stimulus if available; otherwise, it initializes a new Stimulus application.

View Helpers

Use the following helpers to mount components in your views:

<%= turbo_mount("HexColorPicker", props: {color: "#034"}, class: "mb-5") %>

This will generate the following HTML:

<div data-controller="turbo-mount"
     data-turbo-mount-component-value="HexColorPicker"
     data-turbo-mount-props-value="{&quot;color&quot;:&quot;#034&quot;}"
     class="mb-5">
</div>

Supported Frameworks

TurboMount supports the following frameworks:

  • React: "turbo-mount/react"
  • Vue: "turbo-mount/vue"
  • Svelte: "turbo-mount/svelte"

To add support for other frameworks, create a custom plugin. See included plugins for examples.

Custom Controllers

To customize component behavior or pass functions as props, create a custom controller:

import { TurboMountController } from "turbo-mount";

export default class extends TurboMountController {
  get componentProps() {
    return {
      ...this.propsValue,
      onChange: this.onChange,
    };
  }

  onChange = (color) => {
    // same as this.propsValue = { ...this.propsValue, color };
    // but skips the rerendering of the component:
    this.componentProps = { ...this.propsValue, color };
  };
}

Then pass this controller to the registerComponent method:

import HexColorPickerController from "controllers/turbo_mount/hex_color_picker_controller";

registerComponent(turboMount, "HexColorPicker", HexColorPicker, HexColorPickerController);

Vite Integration

TurboMount includes a registerComponents function that automates the loading of components (requires the stimulus-vite-helpers package). It also accepts an optional controllers property to autoload customized controllers:

import { TurboMount } from "turbo-mount/react";
import { registerComponents } from "turbo-mount/registerComponents/react";

const controllers = import.meta.glob("./**/*_controller.js", { eager: true });
const components = import.meta.glob("/components/**/*.jsx", { eager: true });

const turboMount = new TurboMount();
registerComponents({ turboMount, components, controllers });

The registerComponents helper searches for controllers in the following paths:

  • controllers/turbo-mount/${controllerName}
  • controllers/turbo-mount-${controllerName}

Mount Target

To specify a non-root mount target, use the data-<%= controller_name %>-target="mount" attribute:

<%= turbo_mount("HexColorPicker", props: {color: "#430"}) do |controller_name| %>
  <h3>Color picker</h3>
  <div data-<%= controller_name %>-target="mount"></div>
<% end %>

License

The gem is available as open source under the terms of the MIT License.