file_upload.js

/*
 * Copyright (C) 2015 IRSTEA
 * All rights reserved.
 */
(function($) {

    var formatFileSize = function(size, precision) {
            if(typeof(precision) === "undefined") {
                precision = 2;
            }
            if(size > 1000000000) {
                return (size/1000000000).toFixed(precision) + ' Gio';
            }
            if(size > 1000000) {
                return (size/1000000).toFixed(precision) + ' Mio';
            }
            if(size > 1000) {
                return (size/1000).toFixed(precision)+ ' Kio';
            }
            return size + ' o';
        },
        formatBitrate = function(rate) {
            return formatFileSize(rate) + '/s';
        };

    $.blueimp.fileupload.prototype._formatFileSize = formatFileSize;
    $.blueimp.fileupload.prototype._formatBitrate = formatBitrate;

    /** Plugin irsteaFileUpload.
     */
    $.fn.irsteaFileUpload = function(options) {

        var $this             = $(this),
            $button           = $this.find('.fileinput-button'),
            $entries          = $this.find('.fileinput-entries'),
            createUrl         = options.createUrl,
            uploadPrototype   = options.uploadPrototype,
            downloadPrototype = options.downloadPrototype,
            csrfQuery         = '?token=' + options.csrfToken;

        delete options.createUrl;
        delete options.uploadPrototype;
        delete options.downloadPrototype;
        delete options.csrfToken;

        if(options.acceptFileTypes) {
            options.acceptFileTypes = new RegExp('^' + options.acceptFileTypes + '$');
        }

        var updateDisplay = function() {
            var hasEntry = false;
            $entries.find('.fileinput-entry').each(function() {
                var data = $(this).data('data'),
                    inError = !!(data && data.files.error);
                $(this).toggleClass('alert alert-danger', inError);
                $(this).find('.error').toggle(inError);
                hasEntry = true;
            });
            $button.toggle(options.multiple || !hasEntry);
        };

        $this.find('.size').each(function() {
            $(this).text(formatFileSize($(this).text(), $(this).data('size-precision')));
        });

        updateDisplay();

        // Activation
        $button.fileupload($.extend(
            options,