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@arcia125/custom-dropdown

v0.5.2

Published

Custom dropdown Web Component

Downloads

94

Readme

Built With Stencil NPM Version

@arcia125/custom-dropdown

Custom Dropdown Example

Single-Select Dropdown Component with Keyboard Navigation

Live Demo

This project is a Stencil.js implementation of a single-select dropdown component with keyboard navigation and optional filtering.

Features:

  • Custom Dropdown Component: Renders custom-option elements passed via a default slot.
  • Keyboard Navigation: Navigate using the "Arrow Up" and "Arrow Down" keys, select with "Enter". Navigation wraps at the start and end of the list.
  • Single Selection: Allows one option to be selected and highlighted.
  • Optional Filtering: Includes a debounced input for filtering options.
  • CSS Customization: Component appearance can be customized using CSS variables.
  • Accessibility: Includes the proper ARIA roles and properties for accessibility.

Installation

npm i @arcia125/custom-dropdown

Usage

The component can be with frameworks or in vanilla HTML.

React

import '@arcia/custom-dropdown';

function App() {
  return (
    <div>
      <custom-dropdown
        label="Color Options"
        onChangeDropdown={(event) => console.log(event.detail)}
      >
        <custom-option value="white">White</custom-option>
        <custom-option value="white-titanium">White Titanium</custom-option>
        <custom-option value="black">Black</custom-option>
        <custom-option value="black-titanium">Black Titanium</custom-option>
        <custom-option value="teal">Teal</custom-option>
        <custom-option value="pink">Pink</custom-option>
      </custom-dropdown>
    </div>
  );
}

export default App;

HTML

<html>
  <head>
    <script src="https://cdn.jsdelivr.net/npm/@arcia125/[email protected]/dist/index.js"></script>
  </head>
  <custom-dropdown label="Color Options">
    <custom-option value="white">White</custom-option>
    <custom-option value="white-titanium">White Titanium</custom-option>
    <custom-option value="black">Black</custom-option>
    <custom-option value="black-titanium">Black Titanium</custom-option>
    <custom-option value="teal">Teal</custom-option>
    <custom-option value="pink">Pink</custom-option>
  </custom-dropdown>
  <script>
    const customDropdown = document.querySelector('custom-dropdown');
    customDropdown.addEventListener('changeDropdown', console.log);
  </script>
</html>

Known Issues

Flash of Unstyled Content (FOUC): Can be fixed by adding a style block in the HTML file to ensure styles load correctly before content is displayed.

<style>
  :not(:defined) {
    visibility: hidden;
  }

</style>

Customization and enabling Dark/Light mode

Add these styles to your application to enable Dark mode.

<style>
  @media (prefers-color-scheme: dark) {
    :root {
      --custom-dropdown-background-color: #2C2C2E;
      --custom-option-background-color-hover: #3A3A3C;
      --custom-option-background-color-focus: #48484A;
      --custom-dropdown-font-color: #F5F5F7;
    }
    body {
      background-color: #1C1C1E;
    }
  }
</style>

Local Development

running the demo:

npm install
npm start

To build the component for production, run:

npm run build

To run the unit tests for the components, run:

npm run test

To deploy the demo to github pages run the build and commit, then run:

npm run deploy-demo

To deploy to npm run the build and commit, then run:

npm publish