JSFiddle - React, Tailwind, and code Playground

by Nic Fontaine

HTML

<script src="https://cdn.jsdelivr.net/npm/interactjs/dist/interact.min.js"></script>
<div id="test" class="draggable"></div>

CSS

#test {
  width: 80px;
  height: 80px;
  background: violet;
  position: absolute;
}

JavaScript

interact('.draggable')  
  .draggable({
    // enable inertial throwing
    inertia: true,
    // enable autoScroll
    autoScroll: true,
    // call this function on every dragmove event
    onmove: dragMoveListener,
  });

  function dragMoveListener (event) {
    var target = event.target,
        // keep the dragged position in the data-x/data-y attributes
        x = (parseFloat(target.getAttribute('data-x')) || 0) + event.dx,
        y = (parseFloat(target.getAttribute('data-y')) || 0) + event.dy;

    // translate the element
    target.style.webkitTransform =
    target.style.transform =
      'translate(' + x + 'px, ' + y + 'px)';

    // update the posiion attributes
    target.setAttribute('data-x', x);
    target.setAttribute('data-y', y);
  }

// enable draggables to be dropped into this
interact('.dropzone').dropzone({  
  // Require a 50% element overlap for a drop to be possible
  overlap: 0.50,

  // listen for drop related events:

  ondropactivate: function (event) {
    // add active dropzone feedback
    event.target.classList.add('drop-active');
  },
  ondragenter: function (event) {
    var draggableElement = event.relatedTarget,
        dropzoneElement = event.target;

    // feedback the possibility of a drop
    dropzoneElement.classList.add('drop-target');
  },
  ondragleave: function (event) {
    // remove the drop feedback style
    event.target.classList.remove('drop-target');
  },
  ondrop: function (event) {
    event.relatedTarget.textContent = 'Dropped';
  },
  ondropdeactivate: function (event) {
    // remove active dropzone feedback
    event.target.classList.remove('drop-active');
    event.target.classList.remove('drop-target');
  }
});