Dropzone Js - Drag N Drop File From Same Page

I am using Dropzone plugin for multiple files drag n drop functionality. Drag n drop works fine when I am uploading pictures from my laptop / desktop. My question is - how can I dr

Solution 1:

this.on("drop", function(event) {
  var imageUrl = event.dataTransfer.getData('URL');
  var fileName = imageUrl.split('/').pop();

  // set the effectAllowed for the drag item
  event.dataTransfer.effectAllowed = 'copy';

  functiongetDataUri(url, callback) {
    var image = newImage();

    image.onload = function() {
      var canvas = document.createElement('canvas');
      canvas.width = this.naturalWidth; // or 'width' if you want a special/scaled size
      canvas.height = this.naturalHeight; // or 'height' if you want a special/scaled size

      canvas.getContext('2d').drawImage(this, 0, 0);

      // Get raw image data// callback(canvas.toDataURL('image/png').replace(/^data:image\/(png|jpg);base64,/, ''));// ... or get as Data URIcallback(canvas.toDataURL('image/jpeg'));
    };

    image.setAttribute('crossOrigin', 'anonymous');
    image.src = url;
  }

  functiondataURItoBlob(dataURI) {
    var byteString,
        mimestring

    if (dataURI.split(',')[0].indexOf('base64') !== -1) {
      byteString = atob(dataURI.split(',')[1])
    } else {
      byteString = decodeURI(dataURI.split(',')[1])
    }

    mimestring = dataURI.split(',')[0].split(':')[1].split(';')[0]

    var content = newArray();
    for (var i = 0; i < byteString.length; i++) {
      content[i] = byteString.charCodeAt(i)
    }

    returnnewBlob([newUint8Array(content)], {
      type: mimestring
    });
  }

  getDataUri(imageUrl, function(dataUri) {
    var blob = dataURItoBlob(dataUri);
    blob.name = fileName;
    myDropzone.addFile(blob);
  });
});

http://codepen.io/BartSitek/pen/ZeMGjV

Here’s my solution to the problem. Data conversion functions were found on the internet. 
And here’s a little explanation of what’s really happening:

• During “drop” event grab the URL of the image you are dragging

• Convert that URL to Data URI format

• Convert Data URI to Blob
• Add Blob to Dropzone form