Drag, drop and snap

Developer
Darby Rathbone
Size
2,542 Kb
Views
30,360
  1. Drag, drop and snap Previews
  2. Drag, drop and snap HTML Codes
  3. Drag, drop and snap CSS Codes
  4. Drag, drop and snap JS Codes

How do I make an drag, drop and snap?

Drag and drop in a list and snaps in order. What is a drag, drop and snap? How do you make a drag, drop and snap? This script and codes were developed by Darby Rathbone on 03 October 2022, Monday.

Drag, drop and snap Previews
IQ Test

Drag, drop and snap - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>drag, drop and snap</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <ul> <li class='drag'><span>this is 1</span> </li> <li class='drag'><span>this is 2</span> </li> <li class='drag'><span>this is 3</span> </li> <li class='drag'><span>this is 4</span> </li>
</ul><ul> <li class='drag'><span>this is 1</span> </li> <li class='drag'><span>this is 2</span> </li> <li class='drag'><span>this is 3</span> </li> <li class='drag'><span>this is 4</span> </li>
</ul> <script src="js/index.js"></script>
</body>
</html>

Drag, drop and snap - Script Codes CSS Codes

.drag { cursor:move; text-align: center; width:auto; height:auto; border:ridge 3px #cccccc; overflow: hidden; display:flex; padding:10px; margin:5px;
}
ul { outline:inset 3px; overflow:hidden; width:auto;
}

Drag, drop and snap - Script Codes JS Codes

var when = function (event, conditioncallback, truecallback, checkparents, falsecallback) { this.addEventListener(event, function (e) { var p = []; p.push(e.target); if (checkparents) { while (p[p.length - 1].parentElement) { p.push(p[p.length - 1].parentElement) } } if ((!(p.some(function (f) { if (conditioncallback.call(f)) { truecallback.bind(f, e).call(); return true } else { return false } }))) && falsecallback) { falsecallback() } })
};
var dragging, offset;
var dragables = document.getElementsByClassName('drag');
[].slice.call(dragables).reverse().forEach(function (e) { var b = getComputedStyle(e); console.log(b); e.style.top = b.top; e.style.left = b.left
});
var pm = [0, 0];
when('mousedown',
function () { event.preventDefault(); return this.classList.contains('drag')
},
function (e) { var order = [].slice.call(dragables).sort(function (a, b) { return parseInt(getComputedStyle(b)['z-index']) - parseInt(getComputedStyle(a)['z-index']) }); order.unshift(this); order = order.reverse(); order.forEach(function (a, i) { if (!a.style) a.style; a.style['z-index'] = i }); this.style.position = 'relative'; dragging = this; var b = getComputedStyle(this); pm = [e.pageX, e.pageY]; offset = [e.pageX - (parseInt(b.left) || 0), e.pageY - (parseInt(b.top) || 0)]; e.preventDefault()
}, true);
when('mousemove',
function () { return dragging
},
function (e) { var dy = e.pageY - pm[1]; var before = dragging.getBoundingClientRect(); var ev = [e.pageX, e.pageY]; if (dy > 0) { ev[1] = (before.bottom) } if (dy < -0) { ev[1] = (before.top - 1) } var ex = document.elementFromPoint(ev[0], ev[1]); if (ex && dragging !== ex) { if (dragging.parentElement === ex.parentElement) { ex.parentElement.insertBefore(dragging, ex); if (dy > 0) { ex.parentElement.insertBefore(ex, dragging) } var after = dragging.getBoundingClientRect(); offset[1] += after.top - before.top } } if (dy) { pm = [e.pageX, e.pageY]; dragging.style.top = e.pageY - offset[1] + 'px'; dragging.style.left = e.pageX - offset[0] + 'px' } e.preventDefault()
});
when('mouseup',
function () { return dragging
},
function (e) { dragging.style.top = 0 + 'px'; dragging.style.left = 0 + 'px'; e.preventDefault(); dragging.style.position = ''; dragging = false; offset = []
});
Drag, drop and snap - Script Codes
Drag, drop and snap - Script Codes
Home Page Home
Developer Darby Rathbone
Username blackkbot
Uploaded October 03, 2022
Rating 3
Size 2,542 Kb
Views 30,360
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