Vue Drag & Drop Library - Utilities Package

⚠️ Warning: This project is in active development (beta). The API may change between minor versions. Not recommended for production use until version 1.0.0.

Project Status

This project is in active development. We're working toward a stable API, but until version 1.0.0, there may be breaking changes.

Roadmap:

• [x] Basic utility composables
• [ ] Geometry calculations
• [ ] Tests
• [ ] Stable API (version 1.0.0)

Features

Composables

• 🔄 useAutoScroll

  • Automatic scrolling when pointer approaches container edges
  • Configurable threshold and speed
  • Performance optimized with requestAnimationFrame

• 📏 useBounding

  • Track element bounding box in real-time
  • Automatic updates on resize and position changes
  • Efficient DOM updates with ResizeObserver

• 📐 useElementSize

  • Monitor element dimensions
  • Reactive width and height values
  • Optimized with ResizeObserver

• 🧮 useGeometry

  • Calculate relationships between points
  • Get direction, distance, angle, and delta
  • Perfect for pointer-based interactions

• 🔍 useSizeObserver

  • Low-level size observation utility
  • Callback-based API for custom logic
  • Efficient DOM monitoring

Utility Functions

• 📊 Geometry Utilities
  • Calculate delta between points
  • Determine direction of movement
  • Measure angles between points

Installation

Choose your preferred package manager:

npm install @vue-dnd-kit/utilities

yarn add @vue-dnd-kit/utilities

pnpm install @vue-dnd-kit/utilities

Basic Usage

Auto-Scrolling

<script setup>
  import { ref } from 'vue';
  import { useAutoScroll } from '@vue-dnd-kit/utilities';
  import type { IPoint } from '@vue-dnd-kit/core';

  const container = ref(null);
  const pointerPosition = ref({ x: 0, y: 0 });

  const { isScrolling } = useAutoScroll(container, pointerPosition, {
    threshold: 50, // Start scrolling 50px from edges
    speed: 10, // Scroll speed in px per frame
  });

  const updatePointer = (event) => {
    pointerPosition.value = { x: event.clientX, y: event.clientY };
  };
</script>

<template>
  <div
    ref="container"
    @pointermove="updatePointer"
    class="scrollable-container"
  >
    <!-- Content -->
    <div
      v-if="isScrolling"
      class="scroll-indicator"
      >Scrolling...</div
    >
  </div>
</template>

Tracking Element Bounds

<script setup>
  import { ref } from 'vue';
  import { useBounding } from '@vue-dnd-kit/utilities';

  const element = ref(null);
  const bounds = useBounding(element);
</script>

<template>
  <div
    ref="element"
    class="tracked-element"
  >
    Element position: {{ bounds.x }}, {{ bounds.y }}
    <br />
    Size: {{ bounds.width }} x {{ bounds.height }}
  </div>
</template>

Dependencies

This package requires @vue-dnd-kit/core as a peer dependency:

npm install @vue-dnd-kit/core

📄 License

MIT © ZiZiGY