addEventListener("dragleave", function(event)); - Javascript DOM Event

Javascript examples for DOM Event:addEventListener

  1. HOME
  2. Javascript
  3. DOM Event
  4. addEventListener

Description

The ondragleave event occurs when a draggable element leaves a valid drop target.

Summary

Bubbles Yes
Cancelable No
Event type: DragEvent
Supported HTML tags: All HTML elements

Demo Code

ResultView the demo in separate window 

<!DOCTYPE HTML>
<html>
<head>
<style>
.droptarget {/*from   www .  j  ava2 s. co m*/
    float: left;
    width: 100px;
    height: 35px;
    margin: 15px;
    margin-right: 100px;
    padding: 10px;
    border: 1px solid red;
}
</style>
</head>
<body>
<div class="droptarget">
  <p draggable="true" id="dragtarget">Drag me!</p>
</div>

<div class="droptarget"></div>

<p id="demo"></p>

<script>
document.addEventListener("dragstart", function(event) {
    event.dataTransfer.setData("Text", event.target.id);
});

document.addEventListener("dragenter", function(event) {
    if ( event.target.className == "droptarget" ) {
        document.getElementById("demo").innerHTML = "Entered the dropzone";
        event.target.style.backgroundColor = "lightblue";
    }
});

document.addEventListener("dragover", function(event) {
    event.preventDefault();
});

document.addEventListener("dragleave", function(event) {
    if ( event.target.className == "droptarget" ) {
        document.getElementById("demo").innerHTML = "Left the dropzone";
        event.target.style.backgroundColor = "";
    }
});

document.addEventListener("drop", function(event) {
    event.preventDefault();
    if ( event.target.className == "droptarget" ) {
        event.target.style.backgroundColor = "";
        var data = event.dataTransfer.getData("Text");
        event.target.appendChild(document.getElementById(data));
    }
});
</script>

</body>
</html>

Related Tutorials