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)
Installation
svelte-drag-drop-touch may be used as an ESM, 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 with 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 Unfortunately, the NPM package for that polyfill is outdated and does not seem to be updated.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
- Drop- and No-Drop-Zones - look where the events are sent to
- plain Dragging - could be used to combine plain dragging with drag-and-drop
- Flicking - illustrates a simple approach to "flicking"
Build Instructions
You may easily build this package yourself.
Just install NPM according to the instructions for your platform and follow these steps:
- either clone this repository using git or download a ZIP archive with its contents to your disk and unpack it there
- open a shell and navigate to the root directory of this repository
- run
npm installin order to install the complete build environment - execute
npm run buildto create a new build