plastikaweb
1/9/2017 - 10:31 AM

JS Bin// source https://jsbin.com/fibeka

JS Bin// source https://jsbin.com/fibeka

index.html
content_copyfile_download
<!DOCTYPE html>
<html>
<head>
<meta name="description" content="RxJS - drag & drop element">
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
  <script src="https://unpkg.com/@reactivex/rxjs@5.0.0-beta.7/dist/global/Rx.umd.js"></script>
<style id="jsbin-css">
#parent {
  background: red;
  height: 200px;
  width: 200px;
}

#widget {
  background: blue;
  width: 180px;
  height: 20px;
  color: yellow;
  position: absolute;

}
</style>
</head>
<body>
<div id="parent">
  <div id="widget"> drag me</div>
  </div>
<script id="jsbin-javascript">
var parent = document.getElementById('parent'),
    widget = document.getElementById('widget');

var mouseDowns$ = Rx.Observable.fromEvent(widget, 'mousedown'),
    parentMouseMoves$ = Rx.Observable.fromEvent(parent, 'mousemove'),
    parentMouseUps$ = Rx.Observable.fromEvent(parent, 'mouseup');

var drags$ = mouseDowns$.map(function(e) {
  return parentMouseMoves$.takeUntil(parentMouseUps$);
}).switchMap(e => e);

var subscription = drags$.map(function(e) {
  widget.style.left = e.clientX + 'px';
  widget.style.top = e.clientY + 'px';
});

subscription.subscribe(() => console.log('dragging on'));
</script>


<script id="jsbin-source-css" type="text/css">#parent {
  background: red;
  height: 200px;
  width: 200px;
}

#widget {
  background: blue;
  width: 180px;
  height: 20px;
  color: yellow;
  position: absolute;

}</script>

<script id="jsbin-source-javascript" type="text/javascript">var parent = document.getElementById('parent'),
    widget = document.getElementById('widget');

var mouseDowns$ = Rx.Observable.fromEvent(widget, 'mousedown'),
    parentMouseMoves$ = Rx.Observable.fromEvent(parent, 'mousemove'),
    parentMouseUps$ = Rx.Observable.fromEvent(parent, 'mouseup');

var drags$ = mouseDowns$.map(function(e) {
  return parentMouseMoves$.takeUntil(parentMouseUps$);
}).switchMap(e => e);

var subscription = drags$.map(function(e) {
  widget.style.left = e.clientX + 'px';
  widget.style.top = e.clientY + 'px';
});

subscription.subscribe(() => console.log('dragging on'));
</script></body>
</html>
jsbin.fibeka.css
content_copyfile_download
#parent {
  background: red;
  height: 200px;
  width: 200px;
}

#widget {
  background: blue;
  width: 180px;
  height: 20px;
  color: yellow;
  position: absolute;

}
jsbin.fibeka.js
content_copyfile_download
var parent = document.getElementById('parent'),
    widget = document.getElementById('widget');

var mouseDowns$ = Rx.Observable.fromEvent(widget, 'mousedown'),
    parentMouseMoves$ = Rx.Observable.fromEvent(parent, 'mousemove'),
    parentMouseUps$ = Rx.Observable.fromEvent(parent, 'mouseup');

var drags$ = mouseDowns$.map(function(e) {
  return parentMouseMoves$.takeUntil(parentMouseUps$);
}).switchMap(e => e);

var subscription = drags$.map(function(e) {
  widget.style.left = e.clientX + 'px';
  widget.style.top = e.clientY + 'px';
});

subscription.subscribe(() => console.log('dragging on'));