JavaScript Vanilla Library To Create A Drop Zone For Input File Element

DnD Zone is a JavaScript library that converts a file input into a file drop zone where you can specify the files to upload by drag and drop.

If you are looking for a simple script that contains a drop area for the input file for your form, the DnD area can help. Other than that, use libraries like DropzoneJS and jQuery File Upload. DnD region is 2.5 kb gzip and no dependencies. It will only work on modern browsers.

How to make use of it:

1. Download the JavaScript library for the DnD region on the page.

<script src="dnd-zone.js"></script>

2. Enter the input file in the drop area.

<div class="dndzone" id="dndzone-example">
  <div class="dndzone-area">
     Drop files or Click here to select files. 
  </div>
  <input type="file" class="dndzone-input" />
</div>

3. Create a DnD zone and you’re done.

new DnDZone(document.getElementById('dndzone-example'));

4. Apply your own patterns to the projection area.

.dndzone-area {
  /* styles here */
}

5. Defines the file types that the file entry must accept.

<input type="file" accept="image/*" class="dndzone-input" />

// or
new DnDZone(document.getElementById('dndzone-example'),{
    accept: 'image/*'
});

6. Decide whether to trigger the change event when files are dropped or selected.

new DnDZone(document.getElementById('dndzone-example'),{
    triggerChange: true
});

7. Trigger functions before/after dropping or selecting files.

new DnDZone(document.getElementById('dndzone-example'),{
    afterFilesAdded: function(files){
      console.log(files);
    },
    beforeFilesAdded: function(files){
      console.log(files);
    },
});

File Drop Zone For Uploader, DnD Zone Plugin/Github