draggable element

by Jesse M

HTML

<link href="https://fonts.googleapis.com/css?family=Mali|Roboto&display=swap" rel="stylesheet">

<input type="text" id="text" value="This is a draggable element" />

<select id="font">
  <option value="Helvetica">Helvetica</option>
  <option value="Roboto">Roboto</option>
  <option value="Mali">Mali</option>
</select>

<select id="color">
  <option value="red">Red</option>
  <option value="green">Green</option>
  <option value="blue">Blue</option>
</select>

<select id="weight">
  <option value="normal">Normal</option>
  <option value="bold">Bold</option>
</select>

<br />

<div id="product-display">
  <div id="draggable">
    <div id="draggable-text">
      <p>This is a draggable element</p>
    </div>
  </div>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica, sans-serif;
}

#product-display {
  position: relative;
  width: 500px;
  height: 400px;
  background: #ccc;
  margin: 0 auto;
  overflow: hidden;
}

#draggable {
  position: absolute;
	top: 50%;
	left: 50%;
	transform: translate3d(-50%, -50%, 0);
  z-index: 101;
}

#draggable-text {
  background: #fff;
  color: #4d4d4d;
  padding: 20px;
  border-radius: 10px;
  width: auto;
  display: inline-block;
  cursor: move;
}

#draggable-text p {
  margin: 0;
  color: red;
  white-space: nowrap;
}

JavaScript

$('#text').on('keyup', function(){
	$('#draggable-text p').text($(this).val());
});

$('#font').change(function(){
	$('#draggable-text p').css('font-family', $(this).val());
});

$('#color').change(function(){
	$('#draggable-text p').css('color', $(this).val());
});

$('#weight').change(function(){
	$('#draggable-text p').css('font-weight', $(this).val());
});



// Make the DIV element draggable:
dragElement(document.getElementById("draggable"));

function dragElement(elmnt) {
  var pos1 = 0, pos2 = 0, pos3 = 0, pos4 = 0;
  if (document.getElementById(elmnt.id + "-text")) {
    // if present, the header is where you move the DIV from:
    document.getElementById(elmnt.id + "-text").onmousedown = dragMouseDown;
  } else {
    // otherwise, move the DIV from anywhere inside the DIV: 
    elmnt.onmousedown = dragMouseDown;
  }

  function dragMouseDown(e) {
    e = e || window.event;
    e.preventDefault();
    // get the mouse cursor position at startup:
    pos3 = e.clientX;
    pos4 = e.clientY;
    document.onmouseup = closeDragElement;
    // call a function whenever the cursor moves:
    document.onmousemove = elementDrag;
  }

  function elementDrag(e) {
    e = e || window.event;
    e.preventDefault();
    // calculate the new cursor position:
    pos1 = pos3 - e.clientX;
    pos2 = pos4 - e.clientY;
    pos3 = e.clientX;
    pos4 = e.clientY;
    // set the element's new position:
    elmnt.style.top = (elmnt.offsetTop - pos2) + "px";
    elmnt.style.left = (elmnt.offsetLeft - pos1) + "px";
  }

  function closeDragElement() {
    // stop moving when mouse button is released:
    document.onmouseup = null;
    document.onmousemove = null;
  }
}