; if (window.jQuery) (function ($) {
    $.fn.MultiFile = function (options) {
        if (this.length == 0) return this; if (typeof arguments[0] == 'string') { if (this.length > 1) { var args = arguments; return this.each(function () { $.fn.MultiFile.apply($(this), args); }); }; $.fn.MultiFile[arguments[0]].apply(this, $.makeArray(arguments).slice(1) || []); return this; }; var options = $.extend({}, $.fn.MultiFile.options, options || {}); $('form').not('MultiFile-intercepted').addClass('MultiFile-intercepted').submit($.fn.MultiFile.disableEmpty); if ($.fn.MultiFile.options.autoIntercept) { $.fn.MultiFile.intercept($.fn.MultiFile.options.autoIntercept); $.fn.MultiFile.options.autoIntercept = null; }; this.not('.MultiFile-applied').addClass('MultiFile-applied').each(function () {
            window.MultiFile = (window.MultiFile || 0) + 1; var group_count = window.MultiFile; var MultiFile = { e: this, E: $(this), clone: $(this).clone() }; if (typeof options == 'number') options = { max: options }; var o = $.extend({}, $.fn.MultiFile.options, options || {}, ($.metadata ? MultiFile.E.metadata() : ($.meta ? MultiFile.E.data() : null)) || {}, {}); if (!(o.max > 0)) { o.max = MultiFile.E.attr('maxlength'); if (!(o.max > 0)) { o.max = (String(MultiFile.e.className.match(/\b(max|limit)\-([0-9]+)\b/gi) || ['']).match(/[0-9]+/gi) || [''])[0]; if (!(o.max > 0)) o.max = -1; else o.max = String(o.max).match(/[0-9]+/gi)[0]; } }; o.max = new Number(o.max); o.accept = o.accept || MultiFile.E.attr('accept') || ''; if (!o.accept) { o.accept = (MultiFile.e.className.match(/\b(accept\-[\w\|]+)\b/gi)) || ''; o.accept = new String(o.accept).replace(/^(accept|ext)\-/i, ''); }; $.extend(MultiFile, o || {}); MultiFile.STRING = $.extend({}, $.fn.MultiFile.options.STRING, MultiFile.STRING); $.extend(MultiFile, { n: 0, slaves: [], files: [], instanceKey: MultiFile.e.id || 'MultiFile' + String(group_count), generateID: function (z) { return MultiFile.instanceKey + (z > 0 ? '_F' + String(z) : ''); }, trigger: function (event, element) {
                var handler = MultiFile[event], value = $(element).attr('value'); if (handler) { var returnValue = handler(element, value, MultiFile); if (returnValue != null) return returnValue; }
                return true;
            } 
            }); if (String(MultiFile.accept).length > 1) { MultiFile.accept = MultiFile.accept.replace(/\W+/g, '|').replace(/^\W|\W$/g, ''); MultiFile.rxAccept = new RegExp('\\.(' + (MultiFile.accept ? MultiFile.accept : '') + ')$', 'gi'); }; MultiFile.wrapID = MultiFile.instanceKey + '_wrap'; MultiFile.E.wrap('<div class="MultiFile-wrap" id="' + MultiFile.wrapID + '"></div>'); MultiFile.wrapper = $('#' + MultiFile.wrapID + ''); MultiFile.e.name = MultiFile.e.name || 'file' + group_count + '[]'; if (!MultiFile.list) { MultiFile.wrapper.append('<div class="MultiFile-list" id="' + MultiFile.wrapID + '_list"></div>'); MultiFile.list = $('#' + MultiFile.wrapID + '_list'); }; MultiFile.list = $(MultiFile.list); MultiFile.addSlave = function (slave, slave_count) {
                MultiFile.n++; slave.MultiFile = MultiFile; if (slave_count > 0) slave.id = slave.name = ''; if (slave_count > 0) slave.id = MultiFile.generateID(slave_count); slave.name = String(MultiFile.namePattern.replace(/\$name/gi, $(MultiFile.clone).attr('name')).replace(/\$id/gi, $(MultiFile.clone).attr('id')).replace(/\$g/gi, group_count).replace(/\$i/gi, slave_count)); if ((MultiFile.max > 0) && ((MultiFile.n - 1) > (MultiFile.max)))
                    slave.disabled = true; MultiFile.current = MultiFile.slaves[slave_count] = slave; slave = $(slave); slave.val('').attr('value', '')[0].value = ''; slave.addClass('MultiFile-applied'); slave.change(function () {
                        $(this).blur(); if (!MultiFile.trigger('onFileSelect', this, MultiFile)) return false; var ERROR = '', v = String(this.value || ''); if (MultiFile.accept && v && !v.match(MultiFile.rxAccept))
                            ERROR = MultiFile.STRING.denied.replace('$ext', String(v.match(/\.\w{1,4}$/gi))); for (var f in MultiFile.slaves)
                            if (MultiFile.slaves[f] && MultiFile.slaves[f] != this)
                                if (MultiFile.slaves[f].value == v)
                                    ERROR = MultiFile.STRING.duplicate.replace('$file', v.match(/[^\/\\]+$/gi)); var newEle = $(MultiFile.clone).clone(); newEle.addClass('MultiFile'); if (ERROR != '') { MultiFile.error(ERROR); MultiFile.n--; MultiFile.addSlave(newEle[0], slave_count); slave.parent().prepend(newEle); slave.remove(); return false; }; $(this).css({ position: 'absolute', top: '-3000px' }); slave.after(newEle); MultiFile.addToList(this, slave_count); MultiFile.addSlave(newEle[0], slave_count + 1); if (!MultiFile.trigger('afterFileSelect', this, MultiFile)) return false;
                    }); $(slave).data('MultiFile', MultiFile);
            }; MultiFile.addToList = function (slave, slave_count) {
                if (!MultiFile.trigger('onFileAppend', slave, MultiFile)) return false; var 
r = $('<div class="MultiFile-label"></div>'), v = String(slave.value || ''), a = $('<span class="MultiFile-title" title="' + MultiFile.STRING.selected.replace('$file', v) + '">' + MultiFile.STRING.file.replace('$file', v.match(/[^\/\\]+$/gi)[0]) + '</span>'), b = $('<a class="MultiFile-remove" href="#' + MultiFile.wrapID + '"><img src="../../Content/Themes/ui-kinexo/images/quitar.png" border="0"/></a>'); MultiFile.list.append(r.append(b, ' ', a)); b.click(function () { if (!MultiFile.trigger('onFileRemove', slave, MultiFile)) return false; MultiFile.n--; MultiFile.current.disabled = false; MultiFile.slaves[slave_count] = null; $(slave).remove(); $(this).parent().remove(); $(MultiFile.current).css({ position: '', top: '' }); $(MultiFile.current).reset().val('').attr('value', '')[0].value = ''; if (!MultiFile.trigger('afterFileRemove', slave, MultiFile)) return false; return false; }); if (!MultiFile.trigger('afterFileAppend', slave, MultiFile)) return false;
            }; if (!MultiFile.MultiFile) MultiFile.addSlave(MultiFile.e, 0); MultiFile.n++; MultiFile.E.data('MultiFile', MultiFile);
        });
    }; $.extend($.fn.MultiFile, { reset: function () { var settings = $(this).data('MultiFile'); if (settings) settings.list.find('a.MultiFile-remove').click(); return $(this); }, disableEmpty: function (klass) { klass = (typeof (klass) == 'string' ? klass : '') || 'mfD'; var o = []; $('input:file.MultiFile').each(function () { if ($(this).val() == '') o[o.length] = this; }); return $(o).each(function () { this.disabled = true }).addClass(klass); }, reEnableEmpty: function (klass) { klass = (typeof (klass) == 'string' ? klass : '') || 'mfD'; return $('input:file.' + klass).removeClass(klass).each(function () { this.disabled = false }); }, intercepted: {}, intercept: function (methods, context, args) { var method, value; args = args || []; if (args.constructor.toString().indexOf("Array") < 0) args = [args]; if (typeof (methods) == 'function') { $.fn.MultiFile.disableEmpty(); value = methods.apply(context || window, args); setTimeout(function () { $.fn.MultiFile.reEnableEmpty() }, 1000); return value; }; if (methods.constructor.toString().indexOf("Array") < 0) methods = [methods]; for (var i = 0; i < methods.length; i++) { method = methods[i] + ''; if (method) (function (method) { $.fn.MultiFile.intercepted[method] = $.fn[method] || function () { }; $.fn[method] = function () { $.fn.MultiFile.disableEmpty(); value = $.fn.MultiFile.intercepted[method].apply(this, arguments); setTimeout(function () { $.fn.MultiFile.reEnableEmpty() }, 1000); return value; }; })(method); }; } }); $.fn.MultiFile.options = { accept: '', max: -1, namePattern: '$name', STRING: { remove: 'x', denied: 'No están permitidos archivos con extensión $ext.\n', file: '$file', selected: 'Archivo Seleccionado: $file', duplicate: 'Este archivo ya esta seleccionado:\n$file' }, autoIntercept: ['submit', 'ajaxSubmit', 'ajaxForm', 'validate', 'valid'], error: function (s) { alert(s); } }; $.fn.reset = function () { return this.each(function () { try { this.reset(); } catch (e) { } }); }; $(function () { $("input[type=file].multi").MultiFile(); });
})(jQuery);