useLongPress Hook

The useLongPress hook is designed for adding long press interactions to elements in React applications. It provides a flexible way to handle long press events with customizable thresholds and callbacks.

Features

• Customizable Long Press Duration: Set a threshold for how long the press should last to trigger the event.
• Multiple Event Callbacks: Options for onStart, onFinish, and onCancel callbacks.
• Support for Mouse and Touch: Works with both mouse and touch events.
• SSR Safe: Can be safely used in server-side rendered applications.

Installation

Installing Only Current Hooks

npm install @custom-react-hooks/use-long-press

or

yarn add @custom-react-hooks/use-long-press

Installing All Hooks

npm install @custom-react-hooks/all

or

yarn add @custom-react-hooks/all

Importing the Hook

The useLongPress hook must be imported using a named import as shown below:

Named Import:

import { useLongPress } from '@custom-react-hooks/use-long-press';

This approach ensures that the hook integrates seamlessly into your project, maintaining consistency and predictability in how you use our package.

Usage

import React, { useState } from 'react';
import { useLongPress } from '@custom-react-hooks/all';

const LongPressTestComponent = () => {
  const [status, setStatus] = useState('Ready');

  const longPressCallback = () => {
    setStatus('Finished');
  };

  const longPressEvents = useLongPress(longPressCallback, {
    threshold: 500,
    onStart: () => setStatus('Started'),
    onFinish: () => setStatus('Finished'),
    onCancel: () => setStatus('Cancelled'),
  });

  return (
    <div>
      <button {...longPressEvents}>
        Press and Hold
      </button>
      <p>
        Status: <span>{status}</span>
      </p>
    </div>
  );
};

export default LongPressTestComponent;

This example demonstrates how to use the useLongPress hook to add a long press interaction to a button element.

API Reference

Parameters

• callback: The function to execute when a long press event is successfully detected.
• options: Configuration object with the following optional properties:
  • threshold: Time in milliseconds the user must press and hold to trigger a long press event.
  • onStart: Function called when the user starts pressing.
  • onFinish: Function called when a long press event finishes successfully.
  • onCancel: Function called when a press event is cancelled.

Returns

• onMouseDown: Event handler for mouse down event to start detecting long press.
• onMouseUp: Event handler for mouse up event to cancel long press detection.
• onMouseLeave: Event handler for mouse leave event to cancel long press detection.
• onTouchStart: Event handler for touch start event to start detecting long press.
• onTouchEnd: Event handler for touch end event to cancel long press detection.

Use Cases

• Mobile Interaction: Implement long press interactions common in mobile interfaces.
• Context Menus: Display custom context menus on long press.
• Drag-and-Drop Initiation: Start a drag-and-drop process after a long press.
• Gesture Recognition: Recognize specific user gestures for advanced UI interactions.

Contributing

Your contributions to improve useLongPress are appreciated. Feel free to submit issues or pull requests to the repository.