simple drag and drop code example
Example 1: drag and drop
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>DRAG_AND_DROP</title>
<style>
body{
background-color: aquamarine;
}
.whiteBox{
height: 250px;
width: 250px;
background-color: rgb(55, 238, 245);
margin: 10px;
display: inline-block;
border: 2px solid red;
}
.imgBox{
display: flex;
background-image: url("image.jpg");
height: 230px;
width: 230px;
position: relative;
top: 10px;
margin:0 auto;
cursor: pointer;
}
.imgBox1{
display: flex;
background-image: url("image.jpg");
height: 230px;
width: 230px;
position: relative;
top: 10px;
margin:0 auto;
cursor: pointer;
}
.hold{
border: 2px dashed rgb(118, 182, 0);
}
.hide{
display: none;
}
.dragenter{
background: rgb(221, 115, 96);
border-color: green;
border-style: groove;
}
</style>
</head>
<body>
<div class="whiteBox">
<div class="imgBox" draggable="true"></div>
</div>
<div class="whiteBox"></div>
<div class="whiteBox"></div>
<div class="whiteBox"></div>
<script>
console.log("D&D");
let imgBox = document.querySelector(".imgBox");
let whiteBoxes = document.querySelectorAll(".whiteBox");
imgBox.addEventListener("dragstart", (e) => {
console.log("DRAG STARTED");
e.target.className += " hold";
setTimeout(() => {
e.target.className += " hide";
}, 0);
});
imgBox.addEventListener("dragend", (e) => {
console.log("DRAG ENDED");
e.target.className = "imgBox";
});
for (whiteBox of whiteBoxes) {
whiteBox.addEventListener("dragover", (e) => {
e.preventDefault();
});
whiteBox.addEventListener("dragenter", (e) => {
e.target.className += " dragenter";
});
whiteBox.addEventListener("dragleave", (e) => {
e.target.className = "whiteBox";
});
whiteBox.addEventListener("drop", (e) => {
let answer= confirm("Do you really want to move it")
console.log(answer)
if(answer){
e.target.append(imgBox)}
else{
e.target.className = "whiteBox";
}
});
}
</script>
</body>
</html>
Example 2: javascript drag and drop list
var btn = document.querySelector('.add');
var remove = document.querySelector('.draggable');
function dragStart(e) {
this.style.opacity = '0.4';
dragSrcEl = this;
e.dataTransfer.effectAllowed = 'move';
e.dataTransfer.setData('text/html', this.innerHTML);
};
function dragEnter(e) {
this.classList.add('over');
}
function dragLeave(e) {
e.stopPropagation();
this.classList.remove('over');
}
function dragOver(e) {
e.preventDefault();
e.dataTransfer.dropEffect = 'move';
return false;
}
function dragDrop(e) {
if (dragSrcEl != this) {
dragSrcEl.innerHTML = this.innerHTML;
this.innerHTML = e.dataTransfer.getData('text/html');
}
return false;
}
function dragEnd(e) {
var listItens = document.querySelectorAll('.draggable');
[].forEach.call(listItens, function(item) {
item.classList.remove('over');
});
this.style.opacity = '1';
}
function addEventsDragAndDrop(el) {
el.addEventListener('dragstart', dragStart, false);
el.addEventListener('dragenter', dragEnter, false);
el.addEventListener('dragover', dragOver, false);
el.addEventListener('dragleave', dragLeave, false);
el.addEventListener('drop', dragDrop, false);
el.addEventListener('dragend', dragEnd, false);
}
var listItens = document.querySelectorAll('.draggable');
[].forEach.call(listItens, function(item) {
addEventsDragAndDrop(item);
});
function addNewItem() {
var newItem = document.querySelector('.input').value;
if (newItem != '') {
document.querySelector('.input').value = '';
var li = document.createElement('li');
var attr = document.createAttribute('draggable');
var ul = document.querySelector('ul');
li.className = 'draggable';
attr.value = 'true';
li.setAttributeNode(attr);
li.appendChild(document.createTextNode(newItem));
ul.appendChild(li);
addEventsDragAndDrop(li);
}
}
btn.addEventListener('click', addNewItem);