hotkeypad

HotKeyPad

HotKeypad is a lightweight package that provides you with a keyboard shortcuts interface for your website. Built with vanilla JS, no external dependencies. Inspired in design and functionality by NinjaKeys.

Demo

To see it in action, check out my resume.

Motivation

There are lots of libraries that provide keyboard shortcuts for web apps, but most of them are somewhat heavy and depend on extra dependencies. I wanted to create a simple and lightweight package that provided this functionality without any dependencies and made with vanilla JS, so it could be integrated into any web project.

Installation

You can install hotkeypad via npm, pnpm or yarn. Here's how you can do it with npm:

npm install hotkeypad

Or also via CDN:

<!-- Latest Version -->
<script type="module">
  import HotKeyPad from 'https://unpkg.com/hotkeypad?module'
  const hotkeypad = new HotKeyPad()
</script>

Usage

To use HotKeyPad, you need to import the package and create a new instance of the HotKeyPad class. You can then add commands to the keypad and display it on your web app.

First, add thee following tag to your page:

<div id="hotkeypad"></div>

Then, you can use the following code to add the keypad to your page:

import HotKeyPad from 'hotkeypad'

const hotkeypad = new HotKeyPad()

// This will set the commands and render the keypad automatically
hotkeypad.setCommands([
  {
    section: "Actions",
    id: "print",
    title: "Print Page",
    icon: `#custom-icon-print#`, // You can insert your own icon here, being and svg, image or font icon
    hotkey: `${hotKeyPad.activationKey} + P`, // You can use the default activation key or set your own
    handler: () => {
      window.print()
    }
  },
])

// You can also add a listener to the open and close events
window.addEventListener('hotkeypad:open', () => {
  console.log('HotKeyPad is open')
})

window.addEventListener('hotkeypad:close', () => {
  console.log('HotKeyPad is closed')
})

The default activation key is Ctrl for Windows/Linux and Cmd for Mac.

Features

• Keyboard navigation
• Customizable commands
• Light and dark mode support
• Customizable colors with CSS variables
• Customizable activation key

Attributes

You can pass the following attributes to the HotKeyPad constructor or to the html tag (data- prefix is required with kebab-case for the attribute name).

Field	Default	Description
placeholder	Search command	Placeholder text for the search input.
emptyMessage	No commands found	Message to display when there are no commands.
activationLetter	K	The activation letter for the commands. Default is K.
closeKey	Escape	The key to close the keypad. Default is Escape.

Commands Format

Array of HotKeyPadData that represent the commands that will be displayed on the keypad.

Field	Type	Description
id	string	The unique identifier of the command.
title	string	The title of the command.
hotkey	string	The hotkey combination for the command. Format: {ActivationKey}+{Letter}
handler	Function	The function to be executed when the command is triggered.
icon	string (optional)	The icon of the command.
section	string (optional)	The section of the command. Allows you to group commands.

Methods

setCommands(commands: HotKeyPadData[]): void

Set the commands that will be displayed on the keypad.

open(): void

Open the keypad.

close(): void

Close the keypad.

Events

hotkeypad:open

Fired when the keypad is opened.

hotkeypad:close

Fired when the keypad is closed.

CSS Variables

You can customize the colors of the keypad by changing the CSS variables. Here are the available variables:

--hotkeypad-bg-kbd: #f9fafb;
--hotkeypad-bg-backdrop: #fff;
--hotkeypad-bg-container: #fff;
--hotkeypad-bg-item-hover: #f3f4f6;
--hotkeypad-border-container: #d1d5db;
--hotkeypad-border-container-hover: #9ca3af;
--hotkeypad-fg-muted: #4b5563;

Example:

#hotkeypad {
  --hotkeypad-bg-container: red;
}

CSS HotKeyPad Parts

Allowing you to style specific elements from your style.

#hotkeypad [data-backdrop] {}
#hotkeypad [data-container] {}
#hotkeypad [data-sections] {}
#hotkeypad [data-section] {}
#hotkeypad [data-empty] {}
#hotkeypad [data-hotkey] {}
#hotkeypad [data-hotkey][data-active] {}

Icons

You can use any icon library or custom icons. You can use the icon field to set the icon of the command. You can use an image, svg or font icon:

• <svg ...><path d="..." /></svg>
• <img src="path/to/image.png" alt="Title" />
• <i class="material-icons">print</i>

By default will use the Simple Icons library as this: <img src="https://cdn.simpleicons.org/{icon}" alt="{title}" /> if you pass a normal name instead of the any previous mentioned tags.

License

Copyright (c) Jesus Borrero.

Licensed under the MIT License