Question

I’m running a website, where I’d like to upload files with Drag ‘n Drop, using the HTML5 File API and FileReader. I have successfully managed to create a new FileReader, but I don’t know how to upload the file. My code (JavaScript) is the following:

holder = document.getElementById('uploader');

holder.ondragover = function () {
    $("#uploader").addClass('dragover');
    return false;
};

holder.ondragend = function () {
    $("#uploader").removeClass('dragover');
    return false;
};

holder.ondrop = function (e) {
  $("#uploader").removeClass('dragover');
  e.preventDefault();

  var file = e.dataTransfer.files[0],
      reader = new FileReader();
  reader.onload = function (event) {
    //I shoud upload the file now...
  };
  reader.readAsDataURL(file);

  return false;
};

I also have a form (id : upload-form) and an input file field (id : upload-input).
Do you have any ideas?

P.S. I use jQuery, that’s why there is $("#uploader") and others.

Answer 1

Rather than code this from scratch, why not use something like html5uploader, which works via drag n drop (uses FileReader etc.): http://code.google.com/p/html5uploader/

EDIT: apparently we respondents are supposed to tend to our answers forever more, for fear for down-votes. The Google Code link is now dead (four years later), so here’s a jQuery plugin that is very similar: http://www.igloolab.com/jquery-html5-uploader/