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HTML5 Drag-and-Drop support for mobile devices (not only for Svelte)

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svelte-drag-drop-touch

HTML5 Drag-and-Drop support for mobile devices (not only for Svelte)

NPM users: please consider the Github README for the latest description of this package (as updating the docs would otherwise always require a new NPM package version)

Just a small note: if you like this module and plan to use it, consider "starring" this repository (you will find the "Star" button on the top right of this page), so that I know which of my repositories to take most care of.

Installation

svelte-drag-drop-touch may be used as an ECMAScript module (ESM), a CommonJS or AMD module or from a global variable.

You may either install the package into your build environment using NPM with the command

npm install svelte-drag-drop-touch

or load the plain script file directly

<script src="https://unpkg.com/svelte-drag-drop-touch"></script>

Access

When used within Svelte, you should always import the package in a module context:

<script context="module">
  import DragDropTouch from 'svelte-drag-drop-touch'
</script>

Otherwise, the kind of import depends on the type of module you prefer.

  • ESM: import DragDropTouch from 'svelte-drag-drop-touch'
  • CommonJS: const DragDropTouch = require('svelte-drag-drop-touch')
  • AMD: require(['svelte-drag-drop-touch'], (DragDropTouch) => {...})

In any case, a simple import is all you need to use HTML5 Drag-and-Drop on mobile devices - (apart from handling DragEvents) there is no extra programming required.

Example

Several examples are available on the Svelte REPL - feel free to play with them! The most basic one is

Additional, more detailled examples may be found below.

Background Information

Bernardo Castilho has written a nice (and lightweight) Drag-and-Drop polyfill which brings HTML5 Drag-and-Drop capabilities to mobile devices. Unfortunately, the NPM package for that polyfill is outdated and does not seem to be updated.

svelte-drag-drop-touch just brings a TypeScript definition file and a trivial wrapper around the original code and bundles these with the latest version of DragDropTouch.js into an NPM package that may easily be imported into (not only) a Svelte application.

All the heavy lifting is done by DragDropTouch.js, thus, all credits go to Bernardo Castilho!

Additional Examples

Build Instructions

You may easily build this package yourself.

Just install NPM according to the instructions for your platform and follow these steps:

  1. either clone this repository using git or download a ZIP archive with its contents to your disk and unpack it there
  2. open a shell and navigate to the root directory of this repository
  3. run npm install in order to install the complete build environment
  4. execute npm run build to create a new build

You may also look into the author's build-configuration-study for a general description of his build environment.

License

MIT License

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