Drag the W3Schools image into the rectangle.
Drag and Drop
Drag and drop is a very common feature. It is when you 'grab' an object and drag it to a different location.
Today we’re going to be creating a file uploader using HTML5 drag and drop, along with the file reader API and some PHP. We’ll also be using local storage to remember which files were uploaded by the user. Getting Started. For this tutorial I’m using jQuery and an icon font called symbolset. If you don’t want to get symbolset you could. Dropzone.js DropzoneJS is an open source library that provides drag’n’drop file uploads with image previews. It’s lightweight, doesn’t depend on any other library (like jQuery) and is highly customizable. The following is a guest post by Osvaldas Valutis.Osvaldas is going to show us not only how drag and drop file uploading works, but goes over what nice UI and UX for it can be, browser support, and how to approach it from a progressive enhancement standpoint. How To Make A Drag-and-Drop File Uploader With Vanilla JavaScript. Nowadays, though, we have an even fancier way of handling file selection: drag and drop. Technically, this was already. That is all of the base functionality, but often we want more functionality. Specifically, in this tutorial, we’ll be adding a preview pane that.
- Are you looking for Drag and Drop multiple file upload using HTML5. Just take a look at this post, I had implemented this system with using jquery and PHP that. Multiple File Drag and Drop Upload this will work in modern browsers like Crome, Firefox and Safari, File uploads happening through ajax. How to accept other formats (doc, pdf) in.
- JavaScript Drag drop documents/files. Ask Question 0. Is it possible to drag and drop files (not images and not links to files) from one browser window into a droppable file uploader? My website's backend generates PDF documents, and it'd be great if they could be dragged straight into gmail attachment drop box from the icon in my backend.
In HTML5, drag and drop is part of the standard: Any element can be draggable.
Browser Support
The numbers in the table specify the first browser version that fully supports Drag and Drop.
API | |||||
---|---|---|---|---|---|
Drag and Drop | 4.0 | 9.0 | 3.5 | 6.0 | 12.0 |
![Drop Drop](/uploads/1/2/6/1/126198248/188433831.png)
HTML Drag and Drop Example
The example below is a simple drag and drop example:
Example
<!DOCTYPE HTML>
<html>
<head>
<script>
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData('text', ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData('text');
ev.target.appendChild(document.getElementById(data));
}
</script>
</head>
<body>
<div ondrop='drop(event)' ondragover='allowDrop(event)'></div>
<img src='img_logo.gif' width='336' height='69'>
</body>
</html>
Try it Yourself »<html>
<head>
<script>
function allowDrop(ev) {
ev.preventDefault();
}
function drag(ev) {
ev.dataTransfer.setData('text', ev.target.id);
}
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData('text');
ev.target.appendChild(document.getElementById(data));
}
</script>
</head>
<body>
<div ondrop='drop(event)' ondragover='allowDrop(event)'></div>
<img src='img_logo.gif' width='336' height='69'>
</body>
</html>
It might seem complicated, but lets go through all the different parts of a drag and drop event.
Make an Element Draggable
First of all: To make an element draggable, set the
draggable
attribute to true:What to Drag - ondragstart and setData()
Then, specify what should happen when the element is dragged.
In the example above, the
ondragstart
attribute calls a function, drag(event), that specifies what data to be dragged.The
dataTransfer.setData()
method sets the data type and the value of the dragged data: function drag(ev) {
ev.dataTransfer.setData('text', ev.target.id);
}
ev.dataTransfer.setData('text', ev.target.id);
}
Drag And Drop File Html5 Tutorial Pdf File
In this case, the data type is 'text' and the value is the id of the draggable element ('drag1').
Where to Drop - ondragover
The
ondragover
event specifies where the dragged data can be dropped.By default, data/elements cannot be dropped in other elements. To allow a drop, we must prevent the default handling of the element.
This is done by calling the
event.preventDefault()
method for the ondragover event:![Pdf Pdf](/uploads/1/2/6/1/126198248/483788648.png)
Do the Drop - ondrop
When the dragged data is dropped, a drop event occurs.
In the example above, the ondrop attribute calls a function, drop(event):
function drop(ev) {
ev.preventDefault();
var data = ev.dataTransfer.getData('text');
ev.target.appendChild(document.getElementById(data));
}
ev.preventDefault();
var data = ev.dataTransfer.getData('text');
ev.target.appendChild(document.getElementById(data));
}
Code explained:
- Call preventDefault() to prevent the browser default handling of the data (default is open as link on drop)
- Get the dragged data with the dataTransfer.getData() method. This method will return any data that was set to the same type in the setData() method
- The dragged data is the id of the dragged element ('drag1')
- Append the dragged element into the drop element
More Examples
Drag image back and forth
Js Drag And Drop Files
How to drag (and drop) an image back and forth between two <div> elements: