Drag & Drop File Upload

Question

So I\'m struggling a bit to find what I\'m looking for and how to implement it.

I have a basic PHP file uploader working, in that a user presses a custom upload button,

Answer 1

This is absolutely realistic and possible without using any third parties plugin.

The following snippets should give you an idea of how it could work:

Drop area

$(".drop-files-container").bind("drop", function(e) {
    var files = e.originalEvent.dataTransfer.files;
    processFileUpload(files); 
    // forward the file object to your ajax upload method
    return false;
});

the processFileUpload()-Method:

function processFileUpload(droppedFiles) {
         // add your files to the regular upload form
    var uploadFormData = new FormData($("#yourregularuploadformId")[0]); 
    if(droppedFiles.length > 0) { // checks if any files were dropped
        for(var f = 0; f < droppedFiles.length; f++) { // for-loop for each file dropped
            uploadFormData.append("files[]",droppedFiles[f]);  // adding every file to the form so you could upload multiple files
        }
    }

 // the final ajax call

       $.ajax({
        url : "upload.php", // use your target
        type : "POST",
        data : uploadFormData,
        cache : false,
        contentType : false,
        processData : false,
        success : function(ret) {
                 // callback function
        }
       });

 }

form example

<form enctype="multipart/form-data" id="yourregularuploadformId">
     <input type="file" name="files[]" multiple="multiple">
</form>

Feel free to use something like this as a starting point. The browser support of this you can find here http://caniuse.com/#feat=xhr2

Of course you can add any extras you wish like progress bar, preview, animation...