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| // initialize
function Init() {
var fileselect = $id("fileselect"),
filedrag = $id("filedrag"),
submitbutton = $id("submitbutton");
// file select
fileselect.addEventListener("change", FileSelectHandler, false);
// is XHR2 available?
var xhr = new XMLHttpRequest();
if (xhr.upload) {
// file drop
filedrag.addEventListener("dragover", FileDragHover, false);
filedrag.addEventListener("dragleave", FileDragHover, false);
filedrag.addEventListener("drop", FileSelectHandler, false);
filedrag.style.display = "block";
// remove submit button
submitbutton.style.display = "none";
}
}
// call initialization file
if (window.File && window.FileList && window.FileReader) {
Init();
}
function $id(id) {
return document.getElementById(id);
}
function FileDragHover(e) {
e.stopPropagation();
e.preventDefault();
e.target.className = (e.type == "dragover" ? "hover" : "");
}
// file selection
function FileSelectHandler(e) {
// cancel event and hover styling
FileDragHover(e);
// fetch FileList object
var files = e.target.files || e.dataTransfer.files;
// process all File objects
for (var i = 0, f; f = files[i]; i++) {
UploadFile(f);
}
}
function UploadFile(file) {
var formData = new FormData(file);
$.ajax({
url: 'upload.php', //server script to process data
type: 'POST',
data: 'data='+formData,
dataType: 'file',
xhr: function() { // custom xhr
myXhr = $.ajaxSettings.xhr();
if(myXhr.upload){ // check if upload property exists
myXhr.upload.addEventListener('progress',progressHandlingFunction, false); // for handling the progress of the upload
}
return myXhr;
},
//Ajax events
// beforeSend: beforeSendHandler,
success: function (result)
{
console.info('ok '+result);
},
// error: errorHandler,
// Form data
//Options to tell JQuery not to process data or worry about content-type
cache: false,
contentType: false,
processData: false
});
} |
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