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a=parseInt(this.$body.css("padding-right")||0,10);this.originalBodyPad=document.body.style.paddingRight||"",this.bodyIsOverflowing&&this.$body.css("padding-right",a+this.scrollbarWidth)},c.prototype.resetScrollbar=function(){this.$body.css("padding-right",this.originalBodyPad)},c.prototype.measureScrollbar=function(){var a=document.createElement("div");a.className="modal-scrollbar-measure",this.$body.append(a);var b=a.offsetWidth-a.clientWidth;return this.$body[0].removeChild(a),b};var d=a.fn.modal;a.fn.modal=b,a.fn.modal.Constructor=c,a.fn.modal.noConflict=function(){return a.fn.modal=d,this},a(document).on("click.bs.modal.data-api",'[data-toggle="modal"]',function(c){var d=a(this),e=d.attr("href"),f=a(d.attr("data-target")||e&&e.replace(/.*(?=#[^\s]+$)/,"")),g=f.data("bs.modal")?"toggle":a.extend({remote:!/#/.test(e)&&e},f.data(),d.data());d.is("a")&&c.preventDefault(),f.one("show.bs.modal",function(a){a.isDefaultPrevented()||f.one("hidden.bs.modal",function(){d.is(":visible")&&d.trigger("focus")})}),b.call(f,g,this)})}(jQuery),+function(a){"use strict";function b(b){return this.each(function(){var d=a(this),e=d.data("bs.tooltip"),f="object"==typeof b&&b;(e||!/destroy|hide/.test(b))&&(e||d.data("bs.tooltip",e=new c(this,f)),"string"==typeof b&&e[b]())})}var c=function(a,b){this.type=null,this.options=null,this.enabled=null,this.timeout=null,this.hoverState=null,this.$element=null,this.init("tooltip",a,b)};c.VERSION="3.3.2",c.TRANSITION_DURATION=150,c.DEFAULTS={animation:!0,placement:"top",selector:!1,template:'<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',trigger:"hover 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h="hover"==g?"mouseenter":"focusin",i="hover"==g?"mouseleave":"focusout";this.$element.on(h+"."+this.type,this.options.selector,a.proxy(this.enter,this)),this.$element.on(i+"."+this.type,this.options.selector,a.proxy(this.leave,this))}}this.options.selector?this._options=a.extend({},this.options,{trigger:"manual",selector:""}):this.fixTitle()},c.prototype.getDefaults=function(){return c.DEFAULTS},c.prototype.getOptions=function(b){return b=a.extend({},this.getDefaults(),this.$element.data(),b),b.delay&&"number"==typeof b.delay&&(b.delay={show:b.delay,hide:b.delay}),b},c.prototype.getDelegateOptions=function(){var b={},c=this.getDefaults();return this._options&&a.each(this._options,function(a,d){c[a]!=d&&(b[a]=d)}),b},c.prototype.enter=function(b){var c=b instanceof this.constructor?b:a(b.currentTarget).data("bs."+this.type);return c&&c.$tip&&c.$tip.is(":visible")?void(c.hoverState="in"):(c||(c=new this.constructor(b.currentTarget,this.getDelegateOptions()),a(b.currentTarget).data("bs."+this.type,c)),clearTimeout(c.timeout),c.hoverState="in",c.options.delay&&c.options.delay.show?void(c.timeout=setTimeout(function(){"in"==c.hoverState&&c.show()},c.options.delay.show)):c.show())},c.prototype.leave=function(b){var c=b instanceof this.constructor?b:a(b.currentTarget).data("bs."+this.type);return c||(c=new this.constructor(b.currentTarget,this.getDelegateOptions()),a(b.currentTarget).data("bs."+this.type,c)),clearTimeout(c.timeout),c.hoverState="out",c.options.delay&&c.options.delay.hide?void(c.timeout=setTimeout(function(){"out"==c.hoverState&&c.hide()},c.options.delay.hide)):c.hide()},c.prototype.show=function(){var b=a.Event("show.bs."+this.type);if(this.hasContent()&&this.enabled){this.$element.trigger(b);var d=a.contains(this.$element[0].ownerDocument.documentElement,this.$element[0]);if(b.isDefaultPrevented()||!d)return;var e=this,f=this.tip(),g=this.getUID(this.type);this.setContent(),f.attr("id",g),this.$element.attr("aria-describedby",g),this.options.animation&&f.addClass("fade");var h="function"==typeof this.options.placement?this.options.placement.call(this,f[0],this.$element[0]):this.options.placement,i=/\s?auto?\s?/i,j=i.test(h);j&&(h=h.replace(i,"")||"top"),f.detach().css({top:0,left:0,display:"block"}).addClass(h).data("bs."+this.type,this),this.options.container?f.appendTo(this.options.container):f.insertAfter(this.$element);var k=this.getPosition(),l=f[0].offsetWidth,m=f[0].offsetHeight;if(j){var n=h,o=this.options.container?a(this.options.container):this.$element.parent(),p=this.getPosition(o);h="bottom"==h&&k.bottom+m>p.bottom?"top":"top"==h&&k.top-m<p.top?"bottom":"right"==h&&k.right+l>p.width?"left":"left"==h&&k.left-l<p.left?"right":h,f.removeClass(n).addClass(h)}var q=this.getCalculatedOffset(h,k,l,m);this.applyPlacement(q,h);var r=function(){var a=e.hoverState;e.$element.trigger("shown.bs."+e.type),e.hoverState=null,"out"==a&&e.leave(e)};a.support.transition&&this.$tip.hasClass("fade")?f.one("bsTransitionEnd",r).emulateTransitionEnd(c.TRANSITION_DURATION):r()}},c.prototype.applyPlacement=function(b,c){var d=this.tip(),e=d[0].offsetWidth,f=d[0].offsetHeight,g=parseInt(d.css("margin-top"),10),h=parseInt(d.css("margin-left"),10);isNaN(g)&&(g=0),isNaN(h)&&(h=0),b.top=b.top+g,b.left=b.left+h,a.offset.setOffset(d[0],a.extend({using:function(a){d.css({top:Math.round(a.top),left:Math.round(a.left)})}},b),0),d.addClass("in");var i=d[0].offsetWidth,j=d[0].offsetHeight;"top"==c&&j!=f&&(b.top=b.top+f-j);var k=this.getViewportAdjustedDelta(c,b,i,j);k.left?b.left+=k.left:b.top+=k.top;var l=/top|bottom/.test(c),m=l?2*k.left-e+i:2*k.top-f+j,n=l?"offsetWidth":"offsetHeight";d.offset(b),this.replaceArrow(m,d[0][n],l)},c.prototype.replaceArrow=function(a,b,c){this.arrow().css(c?"left":"top",50*(1-a/b)+"%").css(c?"top":"left","")},c.prototype.setContent=function(){var a=this.tip(),b=this.getTitle();a.find(".tooltip-inner")[this.options.html?"html":"text"](b),a.removeClass("fade in top bottom left right")},c.prototype.hide=function(b){function d(){"in"!=e.hoverState&&f.detach(),e.$element.removeAttr("aria-describedby").trigger("hidden.bs."+e.type),b&&b()}var e=this,f=a(this.$tip),g=a.Event("hide.bs."+this.type);return this.$element.trigger(g),g.isDefaultPrevented()?void 0:(f.removeClass("in"),a.support.transition&&f.hasClass("fade")?f.one("bsTransitionEnd",d).emulateTransitionEnd(c.TRANSITION_DURATION):d(),this.hoverState=null,this)},c.prototype.fixTitle=function(){var a=this.$element;(a.attr("title")||"string"!=typeof a.attr("data-original-title"))&&a.attr("data-original-title",a.attr("title")||"").attr("title","")},c.prototype.hasContent=function(){return this.getTitle()},c.prototype.getPosition=function(b){b=b||this.$element;var c=b[0],d="BODY"==c.tagName,e=c.getBoundingClientRect();null==e.width&&(e=a.extend({},e,{width:e.right-e.left,height:e.bottom-e.top}));var f=d?{top:0,left:0}:b.offset(),g={scroll:d?document.documentElement.scrollTop||document.body.scrollTop:b.scrollTop()},h=d?{width:a(window).width(),height:a(window).height()}:null;return a.extend({},e,g,h,f)},c.prototype.getCalculatedOffset=function(a,b,c,d){return"bottom"==a?{top:b.top+b.height,left:b.left+b.width/2-c/2}:"top"==a?{top:b.top-d,left:b.left+b.width/2-c/2}:"left"==a?{top:b.top+b.height/2-d/2,left:b.left-c}:{top:b.top+b.height/2-d/2,left:b.left+b.width}},c.prototype.getViewportAdjustedDelta=function(a,b,c,d){var e={top:0,left:0};if(!this.$viewport)return e;var f=this.options.viewport&&this.options.viewport.padding||0,g=this.getPosition(this.$viewport);if(/right|left/.test(a)){var h=b.top-f-g.scroll,i=b.top+f-g.scroll+d;h<g.top?e.top=g.top-h:i>g.top+g.height&&(e.top=g.top+g.height-i)}else{var j=b.left-f,k=b.left+f+c;j<g.left?e.left=g.left-j:k>g.width&&(e.left=g.left+g.width-k)}return e},c.prototype.getTitle=function(){var a,b=this.$element,c=this.options;return a=b.attr("data-original-title")||("function"==typeof c.title?c.title.call(b[0]):c.title)},c.prototype.getUID=function(a){do a+=~~(1e6*Math.random());while(document.getElementById(a));return a},c.prototype.tip=function(){return this.$tip=this.$tip||a(this.options.template)},c.prototype.arrow=function(){return this.$arrow=this.$arrow||this.tip().find(".tooltip-arrow")},c.prototype.enable=function(){this.enabled=!0},c.prototype.disable=function(){this.enabled=!1},c.prototype.toggleEnabled=function(){this.enabled=!this.enabled},c.prototype.toggle=function(b){var c=this;b&&(c=a(b.currentTarget).data("bs."+this.type),c||(c=new this.constructor(b.currentTarget,this.getDelegateOptions()),a(b.currentTarget).data("bs."+this.type,c))),c.tip().hasClass("in")?c.leave(c):c.enter(c)},c.prototype.destroy=function(){var a=this;clearTimeout(this.timeout),this.hide(function(){a.$element.off("."+a.type).removeData("bs."+a.type)})};var d=a.fn.tooltip;a.fn.tooltip=b,a.fn.tooltip.Constructor=c,a.fn.tooltip.noConflict=function(){return a.fn.tooltip=d,this}}(jQuery),+function(a){"use strict";function b(b){return this.each(function(){var d=a(this),e=d.data("bs.popover"),f="object"==typeof b&&b;(e||!/destroy|hide/.test(b))&&(e||d.data("bs.popover",e=new c(this,f)),"string"==typeof b&&e[b]())})}var c=function(a,b){this.init("popover",a,b)};if(!a.fn.tooltip)throw new Error("Popover requires tooltip.js");c.VERSION="3.3.2",c.DEFAULTS=a.extend({},a.fn.tooltip.Constructor.DEFAULTS,{placement:"right",trigger:"click",content:"",template:'<div class="popover" role="tooltip"><div class="arrow"></div><h3 class="popover-title"></h3><div class="popover-content"></div></div>'}),c.prototype=a.extend({},a.fn.tooltip.Constructor.prototype),c.prototype.constructor=c,c.prototype.getDefaults=function(){return c.DEFAULTS},c.prototype.setContent=function(){var a=this.tip(),b=this.getTitle(),c=this.getContent();a.find(".popover-title")[this.options.html?"html":"text"](b),a.find(".popover-content").children().detach().end()[this.options.html?"string"==typeof c?"html":"append":"text"](c),a.removeClass("fade top bottom left right in"),a.find(".popover-title").html()||a.find(".popover-title").hide()},c.prototype.hasContent=function(){return this.getTitle()||this.getContent()},c.prototype.getContent=function(){var a=this.$element,b=this.options;return a.attr("data-content")||("function"==typeof b.content?b.content.call(a[0]):b.content)},c.prototype.arrow=function(){return this.$arrow=this.$arrow||this.tip().find(".arrow")};var d=a.fn.popover;a.fn.popover=b,a.fn.popover.Constructor=c,a.fn.popover.noConflict=function(){return a.fn.popover=d,this}}(jQuery),+function(a){"use strict";function b(c,d){this.$body=a(document.body),this.$scrollElement=a(a(c).is(document.body)?window:c),this.options=a.extend({},b.DEFAULTS,d),this.selector=(this.options.target||"")+" .nav li > a",this.offsets=[],this.targets=[],this.activeTarget=null,this.scrollHeight=0,this.$scrollElement.on("scroll.bs.scrollspy",a.proxy(this.process,this)),this.refresh(),this.process()}function c(c){return this.each(function(){var d=a(this),e=d.data("bs.scrollspy"),f="object"==typeof c&&c;e||d.data("bs.scrollspy",e=new b(this,f)),"string"==typeof c&&e[c]()})}b.VERSION="3.3.2",b.DEFAULTS={offset:10},b.prototype.getScrollHeight=function(){return this.$scrollElement[0].scrollHeight||Math.max(this.$body[0].scrollHeight,document.documentElement.scrollHeight)},b.prototype.refresh=function(){var b=this,c="offset",d=0;this.offsets=[],this.targets=[],this.scrollHeight=this.getScrollHeight(),a.isWindow(this.$scrollElement[0])||(c="position",d=this.$scrollElement.scrollTop()),this.$body.find(this.selector).map(function(){var b=a(this),e=b.data("target")||b.attr("href"),f=/^#./.test(e)&&a(e);return f&&f.length&&f.is(":visible")&&[[f[c]().top+d,e]]||null}).sort(function(a,b){return a[0]-b[0]}).each(function(){b.offsets.push(this[0]),b.targets.push(this[1])})},b.prototype.process=function(){var a,b=this.$scrollElement.scrollTop()+this.options.offset,c=this.getScrollHeight(),d=this.options.offset+c-this.$scrollElement.height(),e=this.offsets,f=this.targets,g=this.activeTarget;if(this.scrollHeight!=c&&this.refresh(),b>=d)return g!=(a=f[f.length-1])&&this.activate(a);if(g&&b<e[0])return this.activeTarget=null,this.clear();for(a=e.length;a--;)g!=f[a]&&b>=e[a]&&(void 0===e[a+1]||b<=e[a+1])&&this.activate(f[a])},b.prototype.activate=function(b){this.activeTarget=b,this.clear();var c=this.selector+'[data-target="'+b+'"],'+this.selector+'[href="'+b+'"]',d=a(c).parents("li").addClass("active");d.parent(".dropdown-menu").length&&(d=d.closest("li.dropdown").addClass("active")),d.trigger("activate.bs.scrollspy")},b.prototype.clear=function(){a(this.selector).parentsUntil(this.options.target,".active").removeClass("active")};var d=a.fn.scrollspy;a.fn.scrollspy=c,a.fn.scrollspy.Constructor=b,a.fn.scrollspy.noConflict=function(){return a.fn.scrollspy=d,this},a(window).on("load.bs.scrollspy.data-api",function(){a('[data-spy="scroll"]').each(function(){var b=a(this);c.call(b,b.data())})})}(jQuery),+function(a){"use strict";function b(b){return this.each(function(){var d=a(this),e=d.data("bs.tab");e||d.data("bs.tab",e=new c(this)),"string"==typeof b&&e[b]()})}var c=function(b){this.element=a(b)};c.VERSION="3.3.2",c.TRANSITION_DURATION=150,c.prototype.show=function(){var b=this.element,c=b.closest("ul:not(.dropdown-menu)"),d=b.data("target");if(d||(d=b.attr("href"),d=d&&d.replace(/.*(?=#[^\s]*$)/,"")),!b.parent("li").hasClass("active")){var e=c.find(".active:last a"),f=a.Event("hide.bs.tab",{relatedTarget:b[0]}),g=a.Event("show.bs.tab",{relatedTarget:e[0]});
if(e.trigger(f),b.trigger(g),!g.isDefaultPrevented()&&!f.isDefaultPrevented()){var h=a(d);this.activate(b.closest("li"),c),this.activate(h,h.parent(),function(){e.trigger({type:"hidden.bs.tab",relatedTarget:b[0]}),b.trigger({type:"shown.bs.tab",relatedTarget:e[0]})})}}},c.prototype.activate=function(b,d,e){function f(){g.removeClass("active").find("> .dropdown-menu > .active").removeClass("active").end().find('[data-toggle="tab"]').attr("aria-expanded",!1),b.addClass("active").find('[data-toggle="tab"]').attr("aria-expanded",!0),h?(b[0].offsetWidth,b.addClass("in")):b.removeClass("fade"),b.parent(".dropdown-menu").length&&b.closest("li.dropdown").addClass("active").end().find('[data-toggle="tab"]').attr("aria-expanded",!0),e&&e()}var g=d.find("> .active"),h=e&&a.support.transition&&(g.length&&g.hasClass("fade")||!!d.find("> .fade").length);g.length&&h?g.one("bsTransitionEnd",f).emulateTransitionEnd(c.TRANSITION_DURATION):f(),g.removeClass("in")};var d=a.fn.tab;a.fn.tab=b,a.fn.tab.Constructor=c,a.fn.tab.noConflict=function(){return a.fn.tab=d,this};var e=function(c){c.preventDefault(),b.call(a(this),"show")};a(document).on("click.bs.tab.data-api",'[data-toggle="tab"]',e).on("click.bs.tab.data-api",'[data-toggle="pill"]',e)}(jQuery),+function(a){"use strict";function b(b){return this.each(function(){var d=a(this),e=d.data("bs.affix"),f="object"==typeof b&&b;e||d.data("bs.affix",e=new c(this,f)),"string"==typeof b&&e[b]()})}var c=function(b,d){this.options=a.extend({},c.DEFAULTS,d),this.$target=a(this.options.target).on("scroll.bs.affix.data-api",a.proxy(this.checkPosition,this)).on("click.bs.affix.data-api",a.proxy(this.checkPositionWithEventLoop,this)),this.$element=a(b),this.affixed=null,this.unpin=null,this.pinnedOffset=null,this.checkPosition()};c.VERSION="3.3.2",c.RESET="affix affix-top affix-bottom",c.DEFAULTS={offset:0,target:window},c.prototype.getState=function(a,b,c,d){var e=this.$target.scrollTop(),f=this.$element.offset(),g=this.$target.height();if(null!=c&&"top"==this.affixed)return c>e?"top":!1;if("bottom"==this.affixed)return null!=c?e+this.unpin<=f.top?!1:"bottom":a-d>=e+g?!1:"bottom";var h=null==this.affixed,i=h?e:f.top,j=h?g:b;return null!=c&&c>=e?"top":null!=d&&i+j>=a-d?"bottom":!1},c.prototype.getPinnedOffset=function(){if(this.pinnedOffset)return this.pinnedOffset;this.$element.removeClass(c.RESET).addClass("affix");var a=this.$target.scrollTop(),b=this.$element.offset();return this.pinnedOffset=b.top-a},c.prototype.checkPositionWithEventLoop=function(){setTimeout(a.proxy(this.checkPosition,this),1)},c.prototype.checkPosition=function(){if(this.$element.is(":visible")){var b=this.$element.height(),d=this.options.offset,e=d.top,f=d.bottom,g=a("body").height();"object"!=typeof d&&(f=e=d),"function"==typeof e&&(e=d.top(this.$element)),"function"==typeof f&&(f=d.bottom(this.$element));var h=this.getState(g,b,e,f);if(this.affixed!=h){null!=this.unpin&&this.$element.css("top","");var i="affix"+(h?"-"+h:""),j=a.Event(i+".bs.affix");if(this.$element.trigger(j),j.isDefaultPrevented())return;this.affixed=h,this.unpin="bottom"==h?this.getPinnedOffset():null,this.$element.removeClass(c.RESET).addClass(i).trigger(i.replace("affix","affixed")+".bs.affix")}"bottom"==h&&this.$element.offset({top:g-b-f})}};var d=a.fn.affix;a.fn.affix=b,a.fn.affix.Constructor=c,a.fn.affix.noConflict=function(){return a.fn.affix=d,this},a(window).on("load",function(){a('[data-spy="affix"]').each(function(){var c=a(this),d=c.data();d.offset=d.offset||{},null!=d.offsetBottom&&(d.offset.bottom=d.offsetBottom),null!=d.offsetTop&&(d.offset.top=d.offsetTop),b.call(c,d)})})}(jQuery);var modal = jQuery('#modal');
modal.on('hidden.bs.modal', function(e) {
	modal.find('.modal-dialog').removeClass('modal-lg').removeClass('modal-sm');
	modal.find('.save').off('click').show().html('Ok');
	modal.find('.close').off('click').show();
	modal.find('.modal-footer .cancel').html('Close');
	modal.find('.modal-body').empty();
	modal.find('.modal-title').empty();
});
/*
 *
 * More info at [www.dropzonejs.com](http://www.dropzonejs.com)
 *
 * Copyright (c) 2012, Matias Meno
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

(function() {
  var Dropzone, Emitter, camelize, contentLoaded, detectVerticalSquash, drawImageIOSFix, noop, without,
    __slice = [].slice,
    __hasProp = {}.hasOwnProperty,
    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };

  noop = function() {};

  Emitter = (function() {
    function Emitter() {}

    Emitter.prototype.addEventListener = Emitter.prototype.on;

    Emitter.prototype.on = function(event, fn) {
      this._callbacks = this._callbacks || {};
      if (!this._callbacks[event]) {
        this._callbacks[event] = [];
      }
      this._callbacks[event].push(fn);
      return this;
    };

    Emitter.prototype.emit = function() {
      var args, callback, callbacks, event, _i, _len;
      event = arguments[0], args = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
      this._callbacks = this._callbacks || {};
      callbacks = this._callbacks[event];
      if (callbacks) {
        for (_i = 0, _len = callbacks.length; _i < _len; _i++) {
          callback = callbacks[_i];
          callback.apply(this, args);
        }
      }
      return this;
    };

    Emitter.prototype.removeListener = Emitter.prototype.off;

    Emitter.prototype.removeAllListeners = Emitter.prototype.off;

    Emitter.prototype.removeEventListener = Emitter.prototype.off;

    Emitter.prototype.off = function(event, fn) {
      var callback, callbacks, i, _i, _len;
      if (!this._callbacks || arguments.length === 0) {
        this._callbacks = {};
        return this;
      }
      callbacks = this._callbacks[event];
      if (!callbacks) {
        return this;
      }
      if (arguments.length === 1) {
        delete this._callbacks[event];
        return this;
      }
      for (i = _i = 0, _len = callbacks.length; _i < _len; i = ++_i) {
        callback = callbacks[i];
        if (callback === fn) {
          callbacks.splice(i, 1);
          break;
        }
      }
      return this;
    };

    return Emitter;

  })();

  Dropzone = (function(_super) {
    var extend, resolveOption;

    __extends(Dropzone, _super);

    Dropzone.prototype.Emitter = Emitter;


    /*
    This is a list of all available events you can register on a dropzone object.
    
    You can register an event handler like this:
    
        dropzone.on("dragEnter", function() { });
     */

    Dropzone.prototype.events = ["drop", "dragstart", "dragend", "dragenter", "dragover", "dragleave", "addedfile", "removedfile", "thumbnail", "error", "errormultiple", "processing", "processingmultiple", "uploadprogress", "totaluploadprogress", "sending", "sendingmultiple", "success", "successmultiple", "canceled", "canceledmultiple", "complete", "completemultiple", "reset", "maxfilesexceeded", "maxfilesreached", "queuecomplete"];

    Dropzone.prototype.defaultOptions = {
      url: null,
      method: "post",
      withCredentials: false,
      parallelUploads: 2,
      uploadMultiple: false,
      maxFilesize: 256,
      paramName: "file",
      createImageThumbnails: true,
      maxThumbnailFilesize: 10,
      thumbnailWidth: 120,
      thumbnailHeight: 120,
      filesizeBase: 1000,
      maxFiles: null,
      filesizeBase: 1000,
      params: {},
      clickable: true,
      ignoreHiddenFiles: true,
      acceptedFiles: null,
      acceptedMimeTypes: null,
      autoProcessQueue: true,
      autoQueue: true,
      addRemoveLinks: false,
      previewsContainer: null,
      capture: null,
      dictDefaultMessage: "Drop files here to upload",
      dictFallbackMessage: "Your browser does not support drag'n'drop file uploads.",
      dictFallbackText: "Please use the fallback form below to upload your files like in the olden days.",
      dictFileTooBig: "File is too big ({{filesize}}MiB). Max filesize: {{maxFilesize}}MiB.",
      dictInvalidFileType: "You can't upload files of this type.",
      dictResponseError: "Server responded with {{statusCode}} code.",
      dictCancelUpload: "Cancel upload",
      dictCancelUploadConfirmation: "Are you sure you want to cancel this upload?",
      dictRemoveFile: "Remove file",
      dictRemoveFileConfirmation: null,
      dictMaxFilesExceeded: "You can not upload any more files.",
      accept: function(file, done) {
        return done();
      },
      init: function() {
        return noop;
      },
      forceFallback: false,
      fallback: function() {
        var child, messageElement, span, _i, _len, _ref;
        this.element.className = "" + this.element.className + " dz-browser-not-supported";
        _ref = this.element.getElementsByTagName("div");
        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
          child = _ref[_i];
          if (/(^| )dz-message($| )/.test(child.className)) {
            messageElement = child;
            child.className = "dz-message";
            continue;
          }
        }
        if (!messageElement) {
          messageElement = Dropzone.createElement("<div class=\"dz-message\"><span></span></div>");
          this.element.appendChild(messageElement);
        }
        span = messageElement.getElementsByTagName("span")[0];
        if (span) {
          span.textContent = this.options.dictFallbackMessage;
        }
        return this.element.appendChild(this.getFallbackForm());
      },
      resize: function(file) {
        var info, srcRatio, trgRatio;
        info = {
          srcX: 0,
          srcY: 0,
          srcWidth: file.width,
          srcHeight: file.height
        };
        srcRatio = file.width / file.height;
        info.optWidth = this.options.thumbnailWidth;
        info.optHeight = this.options.thumbnailHeight;
        if ((info.optWidth == null) && (info.optHeight == null)) {
          info.optWidth = info.srcWidth;
          info.optHeight = info.srcHeight;
        } else if (info.optWidth == null) {
          info.optWidth = srcRatio * info.optHeight;
        } else if (info.optHeight == null) {
          info.optHeight = (1 / srcRatio) * info.optWidth;
        }
        trgRatio = info.optWidth / info.optHeight;
        if (file.height < info.optHeight || file.width < info.optWidth) {
          info.trgHeight = info.srcHeight;
          info.trgWidth = info.srcWidth;
        } else {
          if (srcRatio > trgRatio) {
            info.srcHeight = file.height;
            info.srcWidth = info.srcHeight * trgRatio;
          } else {
            info.srcWidth = file.width;
            info.srcHeight = info.srcWidth / trgRatio;
          }
        }
        info.srcX = (file.width - info.srcWidth) / 2;
        info.srcY = (file.height - info.srcHeight) / 2;
        return info;
      },

      /*
      Those functions register themselves to the events on init and handle all
      the user interface specific stuff. Overwriting them won't break the upload
      but can break the way it's displayed.
      You can overwrite them if you don't like the default behavior. If you just
      want to add an additional event handler, register it on the dropzone object
      and don't overwrite those options.
       */
      drop: function(e) {
        return this.element.classList.remove("dz-drag-hover");
      },
      dragstart: noop,
      dragend: function(e) {
        return this.element.classList.remove("dz-drag-hover");
      },
      dragenter: function(e) {
        return this.element.classList.add("dz-drag-hover");
      },
      dragover: function(e) {
        return this.element.classList.add("dz-drag-hover");
      },
      dragleave: function(e) {
        return this.element.classList.remove("dz-drag-hover");
      },
      paste: noop,
      reset: function() {
        return this.element.classList.remove("dz-started");
      },
      addedfile: function(file) {
        var node, removeFileEvent, removeLink, _i, _j, _k, _len, _len1, _len2, _ref, _ref1, _ref2, _results;
        if (this.element === this.previewsContainer) {
          this.element.classList.add("dz-started");
        }
        if (this.previewsContainer) {
          file.previewElement = Dropzone.createElement(this.options.previewTemplate.trim());
          file.previewTemplate = file.previewElement;
          this.previewsContainer.appendChild(file.previewElement);
          _ref = file.previewElement.querySelectorAll("[data-dz-name]");
          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
            node = _ref[_i];
            node.textContent = file.name;
          }
          _ref1 = file.previewElement.querySelectorAll("[data-dz-size]");
          for (_j = 0, _len1 = _ref1.length; _j < _len1; _j++) {
            node = _ref1[_j];
            node.innerHTML = this.filesize(file.size);
          }
          if (this.options.addRemoveLinks) {
            file._removeLink = Dropzone.createElement("<a class=\"dz-remove\" href=\"javascript:undefined;\" data-dz-remove>" + this.options.dictRemoveFile + "</a>");
            file.previewElement.appendChild(file._removeLink);
          }
          removeFileEvent = (function(_this) {
            return function(e) {
              e.preventDefault();
              e.stopPropagation();
              if (file.status === Dropzone.UPLOADING) {
                return Dropzone.confirm(_this.options.dictCancelUploadConfirmation, function() {
                  return _this.removeFile(file);
                });
              } else {
                if (_this.options.dictRemoveFileConfirmation) {
                  return Dropzone.confirm(_this.options.dictRemoveFileConfirmation, function() {
                    return _this.removeFile(file);
                  });
                } else {
                  return _this.removeFile(file);
                }
              }
            };
          })(this);
          _ref2 = file.previewElement.querySelectorAll("[data-dz-remove]");
          _results = [];
          for (_k = 0, _len2 = _ref2.length; _k < _len2; _k++) {
            removeLink = _ref2[_k];
            _results.push(removeLink.addEventListener("click", removeFileEvent));
          }
          return _results;
        }
      },
      removedfile: function(file) {
        var _ref;
        if (file.previewElement) {
          if ((_ref = file.previewElement) != null) {
            _ref.parentNode.removeChild(file.previewElement);
          }
        }
        return this._updateMaxFilesReachedClass();
      },
      thumbnail: function(file, dataUrl) {
        var thumbnailElement, _i, _len, _ref;
        if (file.previewElement) {
          file.previewElement.classList.remove("dz-file-preview");
          _ref = file.previewElement.querySelectorAll("[data-dz-thumbnail]");
          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
            thumbnailElement = _ref[_i];
            thumbnailElement.alt = file.name;
            thumbnailElement.src = dataUrl;
          }
          return setTimeout(((function(_this) {
            return function() {
              return file.previewElement.classList.add("dz-image-preview");
            };
          })(this)), 1);
        }
      },
      error: function(file, message) {
        var node, _i, _len, _ref, _results;
        if (file.previewElement) {
          file.previewElement.classList.add("dz-error");
          if (typeof message !== "String" && message.error) {
            message = message.error;
          }
          _ref = file.previewElement.querySelectorAll("[data-dz-errormessage]");
          _results = [];
          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
            node = _ref[_i];
            _results.push(node.textContent = message);
          }
          return _results;
        }
      },
      errormultiple: noop,
      processing: function(file) {
        if (file.previewElement) {
          file.previewElement.classList.add("dz-processing");
          if (file._removeLink) {
            return file._removeLink.textContent = this.options.dictCancelUpload;
          }
        }
      },
      processingmultiple: noop,
      uploadprogress: function(file, progress, bytesSent) {
        var node, _i, _len, _ref, _results;
        if (file.previewElement) {
          _ref = file.previewElement.querySelectorAll("[data-dz-uploadprogress]");
          _results = [];
          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
            node = _ref[_i];
            if (node.nodeName === 'PROGRESS') {
              _results.push(node.value = progress);
            } else {
              _results.push(node.style.width = "" + progress + "%");
            }
          }
          return _results;
        }
      },
      totaluploadprogress: noop,
      sending: noop,
      sendingmultiple: noop,
      success: function(file) {
        if (file.previewElement) {
          return file.previewElement.classList.add("dz-success");
        }
      },
      successmultiple: noop,
      canceled: function(file) {
        return this.emit("error", file, "Upload canceled.");
      },
      canceledmultiple: noop,
      complete: function(file) {
        if (file._removeLink) {
          file._removeLink.textContent = this.options.dictRemoveFile;
        }
        if (file.previewElement) {
          return file.previewElement.classList.add("dz-complete");
        }
      },
      completemultiple: noop,
      maxfilesexceeded: noop,
      maxfilesreached: noop,
      queuecomplete: noop,
      previewTemplate: "<div class=\"dz-preview dz-file-preview\">\n  <div class=\"dz-image\"><img data-dz-thumbnail /></div>\n  <div class=\"dz-details\">\n    <div class=\"dz-size\"><span data-dz-size></span></div>\n    <div class=\"dz-filename\"><span data-dz-name></span></div>\n  </div>\n  <div class=\"dz-progress\"><span class=\"dz-upload\" data-dz-uploadprogress></span></div>\n  <div class=\"dz-error-message\"><span data-dz-errormessage></span></div>\n  <div class=\"dz-success-mark\">\n    <svg width=\"54px\" height=\"54px\" viewBox=\"0 0 54 54\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:sketch=\"http://www.bohemiancoding.com/sketch/ns\">\n      <title>Check</title>\n      <defs></defs>\n      <g id=\"Page-1\" stroke=\"none\" stroke-width=\"1\" fill=\"none\" fill-rule=\"evenodd\" sketch:type=\"MSPage\">\n        <path d=\"M23.5,31.8431458 L17.5852419,25.9283877 C16.0248253,24.3679711 13.4910294,24.366835 11.9289322,25.9289322 C10.3700136,27.4878508 10.3665912,30.0234455 11.9283877,31.5852419 L20.4147581,40.0716123 C20.5133999,40.1702541 20.6159315,40.2626649 20.7218615,40.3488435 C22.2835669,41.8725651 24.794234,41.8626202 26.3461564,40.3106978 L43.3106978,23.3461564 C44.8771021,21.7797521 44.8758057,19.2483887 43.3137085,17.6862915 C41.7547899,16.1273729 39.2176035,16.1255422 37.6538436,17.6893022 L23.5,31.8431458 Z M27,53 C41.3594035,53 53,41.3594035 53,27 C53,12.6405965 41.3594035,1 27,1 C12.6405965,1 1,12.6405965 1,27 C1,41.3594035 12.6405965,53 27,53 Z\" id=\"Oval-2\" stroke-opacity=\"0.198794158\" stroke=\"#747474\" fill-opacity=\"0.816519475\" fill=\"#FFFFFF\" sketch:type=\"MSShapeGroup\"></path>\n      </g>\n    </svg>\n  </div>\n  <div class=\"dz-error-mark\">\n    <svg width=\"54px\" height=\"54px\" viewBox=\"0 0 54 54\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:sketch=\"http://www.bohemiancoding.com/sketch/ns\">\n      <title>Error</title>\n      <defs></defs>\n      <g id=\"Page-1\" stroke=\"none\" stroke-width=\"1\" fill=\"none\" fill-rule=\"evenodd\" sketch:type=\"MSPage\">\n        <g id=\"Check-+-Oval-2\" sketch:type=\"MSLayerGroup\" stroke=\"#747474\" stroke-opacity=\"0.198794158\" fill=\"#FFFFFF\" fill-opacity=\"0.816519475\">\n          <path d=\"M32.6568542,29 L38.3106978,23.3461564 C39.8771021,21.7797521 39.8758057,19.2483887 38.3137085,17.6862915 C36.7547899,16.1273729 34.2176035,16.1255422 32.6538436,17.6893022 L27,23.3431458 L21.3461564,17.6893022 C19.7823965,16.1255422 17.2452101,16.1273729 15.6862915,17.6862915 C14.1241943,19.2483887 14.1228979,21.7797521 15.6893022,23.3461564 L21.3431458,29 L15.6893022,34.6538436 C14.1228979,36.2202479 14.1241943,38.7516113 15.6862915,40.3137085 C17.2452101,41.8726271 19.7823965,41.8744578 21.3461564,40.3106978 L27,34.6568542 L32.6538436,40.3106978 C34.2176035,41.8744578 36.7547899,41.8726271 38.3137085,40.3137085 C39.8758057,38.7516113 39.8771021,36.2202479 38.3106978,34.6538436 L32.6568542,29 Z M27,53 C41.3594035,53 53,41.3594035 53,27 C53,12.6405965 41.3594035,1 27,1 C12.6405965,1 1,12.6405965 1,27 C1,41.3594035 12.6405965,53 27,53 Z\" id=\"Oval-2\" sketch:type=\"MSShapeGroup\"></path>\n        </g>\n      </g>\n    </svg>\n  </div>\n</div>"
    };

    extend = function() {
      var key, object, objects, target, val, _i, _len;
      target = arguments[0], objects = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
      for (_i = 0, _len = objects.length; _i < _len; _i++) {
        object = objects[_i];
        for (key in object) {
          val = object[key];
          target[key] = val;
        }
      }
      return target;
    };

    function Dropzone(element, options) {
      var elementOptions, fallback, _ref;
      this.element = element;
      this.version = Dropzone.version;
      this.defaultOptions.previewTemplate = this.defaultOptions.previewTemplate.replace(/\n*/g, "");
      this.clickableElements = [];
      this.listeners = [];
      this.files = [];
      if (typeof this.element === "string") {
        this.element = document.querySelector(this.element);
      }
      if (!(this.element && (this.element.nodeType != null))) {
        throw new Error("Invalid dropzone element.");
      }
      if (this.element.dropzone) {
        throw new Error("Dropzone already attached.");
      }
      Dropzone.instances.push(this);
      this.element.dropzone = this;
      elementOptions = (_ref = Dropzone.optionsForElement(this.element)) != null ? _ref : {};
      this.options = extend({}, this.defaultOptions, elementOptions, options != null ? options : {});
      if (this.options.forceFallback || !Dropzone.isBrowserSupported()) {
        return this.options.fallback.call(this);
      }
      if (this.options.url == null) {
        this.options.url = this.element.getAttribute("action");
      }
      if (!this.options.url) {
        throw new Error("No URL provided.");
      }
      if (this.options.acceptedFiles && this.options.acceptedMimeTypes) {
        throw new Error("You can't provide both 'acceptedFiles' and 'acceptedMimeTypes'. 'acceptedMimeTypes' is deprecated.");
      }
      if (this.options.acceptedMimeTypes) {
        this.options.acceptedFiles = this.options.acceptedMimeTypes;
        delete this.options.acceptedMimeTypes;
      }
      this.options.method = this.options.method.toUpperCase();
      if ((fallback = this.getExistingFallback()) && fallback.parentNode) {
        fallback.parentNode.removeChild(fallback);
      }
      if (this.options.previewsContainer !== false) {
        if (this.options.previewsContainer) {
          this.previewsContainer = Dropzone.getElement(this.options.previewsContainer, "previewsContainer");
        } else {
          this.previewsContainer = this.element;
        }
      }
      if (this.options.clickable) {
        if (this.options.clickable === true) {
          this.clickableElements = [this.element];
        } else {
          this.clickableElements = Dropzone.getElements(this.options.clickable, "clickable");
        }
      }
      this.init();
    }

    Dropzone.prototype.getAcceptedFiles = function() {
      var file, _i, _len, _ref, _results;
      _ref = this.files;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        file = _ref[_i];
        if (file.accepted) {
          _results.push(file);
        }
      }
      return _results;
    };

    Dropzone.prototype.getRejectedFiles = function() {
      var file, _i, _len, _ref, _results;
      _ref = this.files;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        file = _ref[_i];
        if (!file.accepted) {
          _results.push(file);
        }
      }
      return _results;
    };

    Dropzone.prototype.getFilesWithStatus = function(status) {
      var file, _i, _len, _ref, _results;
      _ref = this.files;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        file = _ref[_i];
        if (file.status === status) {
          _results.push(file);
        }
      }
      return _results;
    };

    Dropzone.prototype.getQueuedFiles = function() {
      return this.getFilesWithStatus(Dropzone.QUEUED);
    };

    Dropzone.prototype.getUploadingFiles = function() {
      return this.getFilesWithStatus(Dropzone.UPLOADING);
    };

    Dropzone.prototype.getActiveFiles = function() {
      var file, _i, _len, _ref, _results;
      _ref = this.files;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        file = _ref[_i];
        if (file.status === Dropzone.UPLOADING || file.status === Dropzone.QUEUED) {
          _results.push(file);
        }
      }
      return _results;
    };

    Dropzone.prototype.init = function() {
      var eventName, noPropagation, setupHiddenFileInput, _i, _len, _ref, _ref1;
      if (this.element.tagName === "form") {
        this.element.setAttribute("enctype", "multipart/form-data");
      }
      if (this.element.classList.contains("dropzone") && !this.element.querySelector(".dz-message")) {
        this.element.appendChild(Dropzone.createElement("<div class=\"dz-default dz-message\"><span>" + this.options.dictDefaultMessage + "</span></div>"));
      }
      if (this.clickableElements.length) {
        setupHiddenFileInput = (function(_this) {
          return function() {
            if (_this.hiddenFileInput) {
              document.body.removeChild(_this.hiddenFileInput);
            }
            _this.hiddenFileInput = document.createElement("input");
            _this.hiddenFileInput.setAttribute("type", "file");
            if ((_this.options.maxFiles == null) || _this.options.maxFiles > 1) {
              _this.hiddenFileInput.setAttribute("multiple", "multiple");
            }
            _this.hiddenFileInput.className = "dz-hidden-input";
            if (_this.options.acceptedFiles != null) {
              _this.hiddenFileInput.setAttribute("accept", _this.options.acceptedFiles);
            }
            if (_this.options.capture != null) {
              _this.hiddenFileInput.setAttribute("capture", _this.options.capture);
            }
            _this.hiddenFileInput.style.visibility = "hidden";
            _this.hiddenFileInput.style.position = "absolute";
            _this.hiddenFileInput.style.top = "0";
            _this.hiddenFileInput.style.left = "0";
            _this.hiddenFileInput.style.height = "0";
            _this.hiddenFileInput.style.width = "0";
            document.body.appendChild(_this.hiddenFileInput);
            return _this.hiddenFileInput.addEventListener("change", function() {
              var file, files, _i, _len;
              files = _this.hiddenFileInput.files;
              if (files.length) {
                for (_i = 0, _len = files.length; _i < _len; _i++) {
                  file = files[_i];
                  _this.addFile(file);
                }
              }
              return setupHiddenFileInput();
            });
          };
        })(this);
        setupHiddenFileInput();
      }
      this.URL = (_ref = window.URL) != null ? _ref : window.webkitURL;
      _ref1 = this.events;
      for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
        eventName = _ref1[_i];
        this.on(eventName, this.options[eventName]);
      }
      this.on("uploadprogress", (function(_this) {
        return function() {
          return _this.updateTotalUploadProgress();
        };
      })(this));
      this.on("removedfile", (function(_this) {
        return function() {
          return _this.updateTotalUploadProgress();
        };
      })(this));
      this.on("canceled", (function(_this) {
        return function(file) {
          return _this.emit("complete", file);
        };
      })(this));
      this.on("complete", (function(_this) {
        return function(file) {
          if (_this.getUploadingFiles().length === 0 && _this.getQueuedFiles().length === 0) {
            return setTimeout((function() {
              return _this.emit("queuecomplete");
            }), 0);
          }
        };
      })(this));
      noPropagation = function(e) {
        e.stopPropagation();
        if (e.preventDefault) {
          return e.preventDefault();
        } else {
          return e.returnValue = false;
        }
      };
      this.listeners = [
        {
          element: this.element,
          events: {
            "dragstart": (function(_this) {
              return function(e) {
                return _this.emit("dragstart", e);
              };
            })(this),
            "dragenter": (function(_this) {
              return function(e) {
                noPropagation(e);
                return _this.emit("dragenter", e);
              };
            })(this),
            "dragover": (function(_this) {
              return function(e) {
                var efct;
                try {
                  efct = e.dataTransfer.effectAllowed;
                } catch (_error) {}
                e.dataTransfer.dropEffect = 'move' === efct || 'linkMove' === efct ? 'move' : 'copy';
                noPropagation(e);
                return _this.emit("dragover", e);
              };
            })(this),
            "dragleave": (function(_this) {
              return function(e) {
                return _this.emit("dragleave", e);
              };
            })(this),
            "drop": (function(_this) {
              return function(e) {
                noPropagation(e);
                return _this.drop(e);
              };
            })(this),
            "dragend": (function(_this) {
              return function(e) {
                return _this.emit("dragend", e);
              };
            })(this)
          }
        }
      ];
      this.clickableElements.forEach((function(_this) {
        return function(clickableElement) {
          return _this.listeners.push({
            element: clickableElement,
            events: {
              "click": function(evt) {
                if ((clickableElement !== _this.element) || (evt.target === _this.element || Dropzone.elementInside(evt.target, _this.element.querySelector(".dz-message")))) {
                  return _this.hiddenFileInput.click();
                }
              }
            }
          });
        };
      })(this));
      this.enable();
      return this.options.init.call(this);
    };

    Dropzone.prototype.destroy = function() {
      var _ref;
      this.disable();
      this.removeAllFiles(true);
      if ((_ref = this.hiddenFileInput) != null ? _ref.parentNode : void 0) {
        this.hiddenFileInput.parentNode.removeChild(this.hiddenFileInput);
        this.hiddenFileInput = null;
      }
      delete this.element.dropzone;
      return Dropzone.instances.splice(Dropzone.instances.indexOf(this), 1);
    };

    Dropzone.prototype.updateTotalUploadProgress = function() {
      var activeFiles, file, totalBytes, totalBytesSent, totalUploadProgress, _i, _len, _ref;
      totalBytesSent = 0;
      totalBytes = 0;
      activeFiles = this.getActiveFiles();
      if (activeFiles.length) {
        _ref = this.getActiveFiles();
        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
          file = _ref[_i];
          totalBytesSent += file.upload.bytesSent;
          totalBytes += file.upload.total;
        }
        totalUploadProgress = 100 * totalBytesSent / totalBytes;
      } else {
        totalUploadProgress = 100;
      }
      return this.emit("totaluploadprogress", totalUploadProgress, totalBytes, totalBytesSent);
    };

    Dropzone.prototype._getParamName = function(n) {
      if (typeof this.options.paramName === "function") {
        return this.options.paramName(n);
      } else {
        return "" + this.options.paramName + (this.options.uploadMultiple ? "[" + n + "]" : "");
      }
    };

    Dropzone.prototype.getFallbackForm = function() {
      var existingFallback, fields, fieldsString, form;
      if (existingFallback = this.getExistingFallback()) {
        return existingFallback;
      }
      fieldsString = "<div class=\"dz-fallback\">";
      if (this.options.dictFallbackText) {
        fieldsString += "<p>" + this.options.dictFallbackText + "</p>";
      }
      fieldsString += "<input type=\"file\" name=\"" + (this._getParamName(0)) + "\" " + (this.options.uploadMultiple ? 'multiple="multiple"' : void 0) + " /><input type=\"submit\" value=\"Upload!\"></div>";
      fields = Dropzone.createElement(fieldsString);
      if (this.element.tagName !== "FORM") {
        form = Dropzone.createElement("<form action=\"" + this.options.url + "\" enctype=\"multipart/form-data\" method=\"" + this.options.method + "\"></form>");
        form.appendChild(fields);
      } else {
        this.element.setAttribute("enctype", "multipart/form-data");
        this.element.setAttribute("method", this.options.method);
      }
      return form != null ? form : fields;
    };

    Dropzone.prototype.getExistingFallback = function() {
      var fallback, getFallback, tagName, _i, _len, _ref;
      getFallback = function(elements) {
        var el, _i, _len;
        for (_i = 0, _len = elements.length; _i < _len; _i++) {
          el = elements[_i];
          if (/(^| )fallback($| )/.test(el.className)) {
            return el;
          }
        }
      };
      _ref = ["div", "form"];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        tagName = _ref[_i];
        if (fallback = getFallback(this.element.getElementsByTagName(tagName))) {
          return fallback;
        }
      }
    };

    Dropzone.prototype.setupEventListeners = function() {
      var elementListeners, event, listener, _i, _len, _ref, _results;
      _ref = this.listeners;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        elementListeners = _ref[_i];
        _results.push((function() {
          var _ref1, _results1;
          _ref1 = elementListeners.events;
          _results1 = [];
          for (event in _ref1) {
            listener = _ref1[event];
            _results1.push(elementListeners.element.addEventListener(event, listener, false));
          }
          return _results1;
        })());
      }
      return _results;
    };

    Dropzone.prototype.removeEventListeners = function() {
      var elementListeners, event, listener, _i, _len, _ref, _results;
      _ref = this.listeners;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        elementListeners = _ref[_i];
        _results.push((function() {
          var _ref1, _results1;
          _ref1 = elementListeners.events;
          _results1 = [];
          for (event in _ref1) {
            listener = _ref1[event];
            _results1.push(elementListeners.element.removeEventListener(event, listener, false));
          }
          return _results1;
        })());
      }
      return _results;
    };

    Dropzone.prototype.disable = function() {
      var file, _i, _len, _ref, _results;
      this.clickableElements.forEach(function(element) {
        return element.classList.remove("dz-clickable");
      });
      this.removeEventListeners();
      _ref = this.files;
      _results = [];
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        file = _ref[_i];
        _results.push(this.cancelUpload(file));
      }
      return _results;
    };

    Dropzone.prototype.enable = function() {
      this.clickableElements.forEach(function(element) {
        return element.classList.add("dz-clickable");
      });
      return this.setupEventListeners();
    };

    Dropzone.prototype.filesize = function(size) {
      var cutoff, i, selectedSize, selectedUnit, unit, units, _i, _len;
      units = ['TB', 'GB', 'MB', 'KB', 'b'];
      selectedSize = selectedUnit = null;
      for (i = _i = 0, _len = units.length; _i < _len; i = ++_i) {
        unit = units[i];
        cutoff = Math.pow(this.options.filesizeBase, 4 - i) / 10;
        if (size >= cutoff) {
          selectedSize = size / Math.pow(this.options.filesizeBase, 4 - i);
          selectedUnit = unit;
          break;
        }
      }
      selectedSize = Math.round(10 * selectedSize) / 10;
      return "<strong>" + selectedSize + "</strong> " + selectedUnit;
    };

    Dropzone.prototype._updateMaxFilesReachedClass = function() {
      if ((this.options.maxFiles != null) && this.getAcceptedFiles().length >= this.options.maxFiles) {
        if (this.getAcceptedFiles().length === this.options.maxFiles) {
          this.emit('maxfilesreached', this.files);
        }
        return this.element.classList.add("dz-max-files-reached");
      } else {
        return this.element.classList.remove("dz-max-files-reached");
      }
    };

    Dropzone.prototype.drop = function(e) {
      var files, items;
      if (!e.dataTransfer) {
        return;
      }
      this.emit("drop", e);
      files = e.dataTransfer.files;
      if (files.length) {
        items = e.dataTransfer.items;
        if (items && items.length && (items[0].webkitGetAsEntry != null)) {
          this._addFilesFromItems(items);
        } else {
          this.handleFiles(files);
        }
      }
    };

    Dropzone.prototype.paste = function(e) {
      var items, _ref;
      if ((e != null ? (_ref = e.clipboardData) != null ? _ref.items : void 0 : void 0) == null) {
        return;
      }
      this.emit("paste", e);
      items = e.clipboardData.items;
      if (items.length) {
        return this._addFilesFromItems(items);
      }
    };

    Dropzone.prototype.handleFiles = function(files) {
      var file, _i, _len, _results;
      _results = [];
      for (_i = 0, _len = files.length; _i < _len; _i++) {
        file = files[_i];
        _results.push(this.addFile(file));
      }
      return _results;
    };

    Dropzone.prototype._addFilesFromItems = function(items) {
      var entry, item, _i, _len, _results;
      _results = [];
      for (_i = 0, _len = items.length; _i < _len; _i++) {
        item = items[_i];
        if ((item.webkitGetAsEntry != null) && (entry = item.webkitGetAsEntry())) {
          if (entry.isFile) {
            _results.push(this.addFile(item.getAsFile()));
          } else if (entry.isDirectory) {
            _results.push(this._addFilesFromDirectory(entry, entry.name));
          } else {
            _results.push(void 0);
          }
        } else if (item.getAsFile != null) {
          if ((item.kind == null) || item.kind === "file") {
            _results.push(this.addFile(item.getAsFile()));
          } else {
            _results.push(void 0);
          }
        } else {
          _results.push(void 0);
        }
      }
      return _results;
    };

    Dropzone.prototype._addFilesFromDirectory = function(directory, path) {
      var dirReader, entriesReader;
      dirReader = directory.createReader();
      entriesReader = (function(_this) {
        return function(entries) {
          var entry, _i, _len;
          for (_i = 0, _len = entries.length; _i < _len; _i++) {
            entry = entries[_i];
            if (entry.isFile) {
              entry.file(function(file) {
                if (_this.options.ignoreHiddenFiles && file.name.substring(0, 1) === '.') {
                  return;
                }
                file.fullPath = "" + path + "/" + file.name;
                return _this.addFile(file);
              });
            } else if (entry.isDirectory) {
              _this._addFilesFromDirectory(entry, "" + path + "/" + entry.name);
            }
          }
        };
      })(this);
      return dirReader.readEntries(entriesReader, function(error) {
        return typeof console !== "undefined" && console !== null ? typeof console.log === "function" ? console.log(error) : void 0 : void 0;
      });
    };

    Dropzone.prototype.accept = function(file, done) {
      if (file.size > this.options.maxFilesize * 1024 * 1024) {
        return done(this.options.dictFileTooBig.replace("{{filesize}}", Math.round(file.size / 1024 / 10.24) / 100).replace("{{maxFilesize}}", this.options.maxFilesize));
      } else if (!Dropzone.isValidFile(file, this.options.acceptedFiles)) {
        return done(this.options.dictInvalidFileType);
      } else if ((this.options.maxFiles != null) && this.getAcceptedFiles().length >= this.options.maxFiles) {
        done(this.options.dictMaxFilesExceeded.replace("{{maxFiles}}", this.options.maxFiles));
        return this.emit("maxfilesexceeded", file);
      } else {
        return this.options.accept.call(this, file, done);
      }
    };

    Dropzone.prototype.addFile = function(file) {
      file.upload = {
        progress: 0,
        total: file.size,
        bytesSent: 0
      };
      this.files.push(file);
      file.status = Dropzone.ADDED;
      this.emit("addedfile", file);
      this._enqueueThumbnail(file);
      return this.accept(file, (function(_this) {
        return function(error) {
          if (error) {
            file.accepted = false;
            _this._errorProcessing([file], error);
          } else {
            file.accepted = true;
            if (_this.options.autoQueue) {
              _this.enqueueFile(file);
            }
          }
          return _this._updateMaxFilesReachedClass();
        };
      })(this));
    };

    Dropzone.prototype.enqueueFiles = function(files) {
      var file, _i, _len;
      for (_i = 0, _len = files.length; _i < _len; _i++) {
        file = files[_i];
        this.enqueueFile(file);
      }
      return null;
    };

    Dropzone.prototype.enqueueFile = function(file) {
      if (file.status === Dropzone.ADDED && file.accepted === true) {
        file.status = Dropzone.QUEUED;
        if (this.options.autoProcessQueue) {
          return setTimeout(((function(_this) {
            return function() {
              return _this.processQueue();
            };
          })(this)), 0);
        }
      } else {
        throw new Error("This file can't be queued because it has already been processed or was rejected.");
      }
    };

    Dropzone.prototype._thumbnailQueue = [];

    Dropzone.prototype._processingThumbnail = false;

    Dropzone.prototype._enqueueThumbnail = function(file) {
      if (this.options.createImageThumbnails && file.type.match(/image.*/) && file.size <= this.options.maxThumbnailFilesize * 1024 * 1024) {
        this._thumbnailQueue.push(file);
        return setTimeout(((function(_this) {
          return function() {
            return _this._processThumbnailQueue();
          };
        })(this)), 0);
      }
    };

    Dropzone.prototype._processThumbnailQueue = function() {
      if (this._processingThumbnail || this._thumbnailQueue.length === 0) {
        return;
      }
      this._processingThumbnail = true;
      return this.createThumbnail(this._thumbnailQueue.shift(), (function(_this) {
        return function() {
          _this._processingThumbnail = false;
          return _this._processThumbnailQueue();
        };
      })(this));
    };

    Dropzone.prototype.removeFile = function(file) {
      if (file.status === Dropzone.UPLOADING) {
        this.cancelUpload(file);
      }
      this.files = without(this.files, file);
      this.emit("removedfile", file);
      if (this.files.length === 0) {
        return this.emit("reset");
      }
    };

    Dropzone.prototype.removeAllFiles = function(cancelIfNecessary) {
      var file, _i, _len, _ref;
      if (cancelIfNecessary == null) {
        cancelIfNecessary = false;
      }
      _ref = this.files.slice();
      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
        file = _ref[_i];
        if (file.status !== Dropzone.UPLOADING || cancelIfNecessary) {
          this.removeFile(file);
        }
      }
      return null;
    };

    Dropzone.prototype.createThumbnail = function(file, callback) {
      var fileReader;
      fileReader = new FileReader;
      fileReader.onload = (function(_this) {
        return function() {
          if (file.type === "image/svg+xml") {
            _this.emit("thumbnail", file, fileReader.result);
            if (callback != null) {
              callback();
            }
            return;
          }
          return _this.createThumbnailFromUrl(file, fileReader.result, callback);
        };
      })(this);
      return fileReader.readAsDataURL(file);
    };

    Dropzone.prototype.createThumbnailFromUrl = function(file, imageUrl, callback) {
      var img;
      img = document.createElement("img");
      img.onload = (function(_this) {
        return function() {
          var canvas, ctx, resizeInfo, thumbnail, _ref, _ref1, _ref2, _ref3;
          file.width = img.width;
          file.height = img.height;
          resizeInfo = _this.options.resize.call(_this, file);
          if (resizeInfo.trgWidth == null) {
            resizeInfo.trgWidth = resizeInfo.optWidth;
          }
          if (resizeInfo.trgHeight == null) {
            resizeInfo.trgHeight = resizeInfo.optHeight;
          }
          canvas = document.createElement("canvas");
          ctx = canvas.getContext("2d");
          canvas.width = resizeInfo.trgWidth;
          canvas.height = resizeInfo.trgHeight;
          drawImageIOSFix(ctx, img, (_ref = resizeInfo.srcX) != null ? _ref : 0, (_ref1 = resizeInfo.srcY) != null ? _ref1 : 0, resizeInfo.srcWidth, resizeInfo.srcHeight, (_ref2 = resizeInfo.trgX) != null ? _ref2 : 0, (_ref3 = resizeInfo.trgY) != null ? _ref3 : 0, resizeInfo.trgWidth, resizeInfo.trgHeight);
          thumbnail = canvas.toDataURL("image/png");
          _this.emit("thumbnail", file, thumbnail);
          if (callback != null) {
            return callback();
          }
        };
      })(this);
      if (callback != null) {
        img.onerror = callback;
      }
      return img.src = imageUrl;
    };

    Dropzone.prototype.processQueue = function() {
      var i, parallelUploads, processingLength, queuedFiles;
      parallelUploads = this.options.parallelUploads;
      processingLength = this.getUploadingFiles().length;
      i = processingLength;
      if (processingLength >= parallelUploads) {
        return;
      }
      queuedFiles = this.getQueuedFiles();
      if (!(queuedFiles.length > 0)) {
        return;
      }
      if (this.options.uploadMultiple) {
        return this.processFiles(queuedFiles.slice(0, parallelUploads - processingLength));
      } else {
        while (i < parallelUploads) {
          if (!queuedFiles.length) {
            return;
          }
          this.processFile(queuedFiles.shift());
          i++;
        }
      }
    };

    Dropzone.prototype.processFile = function(file) {
      return this.processFiles([file]);
    };

    Dropzone.prototype.processFiles = function(files) {
      var file, _i, _len;
      for (_i = 0, _len = files.length; _i < _len; _i++) {
        file = files[_i];
        file.processing = true;
        file.status = Dropzone.UPLOADING;
        this.emit("processing", file);
      }
      if (this.options.uploadMultiple) {
        this.emit("processingmultiple", files);
      }
      return this.uploadFiles(files);
    };

    Dropzone.prototype._getFilesWithXhr = function(xhr) {
      var file, files;
      return files = (function() {
        var _i, _len, _ref, _results;
        _ref = this.files;
        _results = [];
        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
          file = _ref[_i];
          if (file.xhr === xhr) {
            _results.push(file);
          }
        }
        return _results;
      }).call(this);
    };

    Dropzone.prototype.cancelUpload = function(file) {
      var groupedFile, groupedFiles, _i, _j, _len, _len1, _ref;
      if (file.status === Dropzone.UPLOADING) {
        groupedFiles = this._getFilesWithXhr(file.xhr);
        for (_i = 0, _len = groupedFiles.length; _i < _len; _i++) {
          groupedFile = groupedFiles[_i];
          groupedFile.status = Dropzone.CANCELED;
        }
        if(file.xhr) {
          file.xhr.abort();
        }
        for (_j = 0, _len1 = groupedFiles.length; _j < _len1; _j++) {
          groupedFile = groupedFiles[_j];
          this.emit("canceled", groupedFile);
        }
        if (this.options.uploadMultiple) {
          this.emit("canceledmultiple", groupedFiles);
        }
      } else if ((_ref = file.status) === Dropzone.ADDED || _ref === Dropzone.QUEUED) {
        file.status = Dropzone.CANCELED;
        this.emit("canceled", file);
        if (this.options.uploadMultiple) {
          this.emit("canceledmultiple", [file]);
        }
      }
      if (this.options.autoProcessQueue) {
        return this.processQueue();
      }
    };

    resolveOption = function() {
      var args, option;
      option = arguments[0], args = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
      if (typeof option === 'function') {
        return option.apply(this, args);
      }
      return option;
    };

    Dropzone.prototype.uploadFile = function(file) {
      return this.uploadFiles([file]);
    };

    Dropzone.prototype.uploadFiles = function(files) {
      var file, formData, handleError, headerName, headerValue, headers, i, input, inputName, inputType, key, method, option, progressObj, response, updateProgress, url, value, xhr, _i, _j, _k, _l, _len, _len1, _len2, _len3, _m, _ref, _ref1, _ref2, _ref3, _ref4, _ref5;
      xhr = new XMLHttpRequest();
      for (_i = 0, _len = files.length; _i < _len; _i++) {
        file = files[_i];
        file.xhr = xhr;
      }
      method = resolveOption(this.options.method, files);
      url = resolveOption(this.options.url, files);
      xhr.open(method, url, true);
      xhr.withCredentials = !!this.options.withCredentials;
      response = null;
      handleError = (function(_this) {
        return function() {
          var _j, _len1, _results;
          _results = [];
          for (_j = 0, _len1 = files.length; _j < _len1; _j++) {
            file = files[_j];
            _results.push(_this._errorProcessing(files, response || _this.options.dictResponseError.replace("{{statusCode}}", xhr.status), xhr));
          }
          return _results;
        };
      })(this);
      updateProgress = (function(_this) {
        return function(e) {
          var allFilesFinished, progress, _j, _k, _l, _len1, _len2, _len3, _results;
          if (e != null) {
            progress = 100 * e.loaded / e.total;
            for (_j = 0, _len1 = files.length; _j < _len1; _j++) {
              file = files[_j];
              file.upload = {
                progress: progress,
                total: e.total,
                bytesSent: e.loaded
              };
            }
          } else {
            allFilesFinished = true;
            progress = 100;
            for (_k = 0, _len2 = files.length; _k < _len2; _k++) {
              file = files[_k];
              if (!(file.upload.progress === 100 && file.upload.bytesSent === file.upload.total)) {
                allFilesFinished = false;
              }
              file.upload.progress = progress;
              file.upload.bytesSent = file.upload.total;
            }
            if (allFilesFinished) {
              return;
            }
          }
          _results = [];
          for (_l = 0, _len3 = files.length; _l < _len3; _l++) {
            file = files[_l];
            _results.push(_this.emit("uploadprogress", file, progress, file.upload.bytesSent));
          }
          return _results;
        };
      })(this);
      xhr.onload = (function(_this) {
        return function(e) {
          var _ref;
          if (files[0].status === Dropzone.CANCELED) {
            return;
          }
          if (xhr.readyState !== 4) {
            return;
          }
          response = xhr.responseText;
          if (xhr.getResponseHeader("content-type") && ~xhr.getResponseHeader("content-type").indexOf("application/json")) {
            try {
              response = JSON.parse(response);
            } catch (_error) {
              e = _error;
              response = "Invalid JSON response from server.";
            }
          }
          updateProgress();
          if (!((200 <= (_ref = xhr.status) && _ref < 300))) {
            return handleError();
          } else {
            return _this._finished(files, response, e);
          }
        };
      })(this);
      xhr.onerror = (function(_this) {
        return function() {
          if (files[0].status === Dropzone.CANCELED) {
            return;
          }
          return handleError();
        };
      })(this);
      progressObj = (_ref = xhr.upload) != null ? _ref : xhr;
      progressObj.onprogress = updateProgress;
      headers = {
        "Accept": "application/json",
        "Cache-Control": "no-cache",
        "X-Requested-With": "XMLHttpRequest"
      };
      if (this.options.headers) {
        extend(headers, this.options.headers);
      }
      for (headerName in headers) {
        headerValue = headers[headerName];
        xhr.setRequestHeader(headerName, headerValue);
      }
      formData = new FormData();
      if (this.options.params) {
        _ref1 = this.options.params;
        for (key in _ref1) {
          value = _ref1[key];
          formData.append(key, value);
        }
      }
      for (_j = 0, _len1 = files.length; _j < _len1; _j++) {
        file = files[_j];
        this.emit("sending", file, xhr, formData);
      }
      if (this.options.uploadMultiple) {
        this.emit("sendingmultiple", files, xhr, formData);
      }
      if (this.element.tagName === "FORM") {
        _ref2 = this.element.querySelectorAll("input, textarea, select, button");
        for (_k = 0, _len2 = _ref2.length; _k < _len2; _k++) {
          input = _ref2[_k];
          inputName = input.getAttribute("name");
          inputType = input.getAttribute("type");
          if (input.tagName === "SELECT" && input.hasAttribute("multiple")) {
            _ref3 = input.options;
            for (_l = 0, _len3 = _ref3.length; _l < _len3; _l++) {
              option = _ref3[_l];
              if (option.selected) {
                formData.append(inputName, option.value);
              }
            }
          } else if (!inputType || ((_ref4 = inputType.toLowerCase()) !== "checkbox" && _ref4 !== "radio") || input.checked) {
            formData.append(inputName, input.value);
          }
        }
      }
      for (i = _m = 0, _ref5 = files.length - 1; 0 <= _ref5 ? _m <= _ref5 : _m >= _ref5; i = 0 <= _ref5 ? ++_m : --_m) {
        formData.append(this._getParamName(i), files[i], files[i].name);
      }
      return xhr.send(formData);
    };

    Dropzone.prototype._finished = function(files, responseText, e) {
      var file, _i, _len;
      for (_i = 0, _len = files.length; _i < _len; _i++) {
        file = files[_i];
        file.status = Dropzone.SUCCESS;
        this.emit("success", file, responseText, e);
        this.emit("complete", file);
      }
      if (this.options.uploadMultiple) {
        this.emit("successmultiple", files, responseText, e);
        this.emit("completemultiple", files);
      }
      if (this.options.autoProcessQueue) {
        return this.processQueue();
      }
    };

    Dropzone.prototype._errorProcessing = function(files, message, xhr) {
      var file, _i, _len;
      for (_i = 0, _len = files.length; _i < _len; _i++) {
        file = files[_i];
        file.status = Dropzone.ERROR;
        this.emit("error", file, message, xhr);
        this.emit("complete", file);
      }
      if (this.options.uploadMultiple) {
        this.emit("errormultiple", files, message, xhr);
        this.emit("completemultiple", files);
      }
      if (this.options.autoProcessQueue) {
        return this.processQueue();
      }
    };

    return Dropzone;

  })(Emitter);

  Dropzone.version = "4.0.1";

  Dropzone.options = {};

  Dropzone.optionsForElement = function(element) {
    if (element.getAttribute("id")) {
      return Dropzone.options[camelize(element.getAttribute("id"))];
    } else {
      return void 0;
    }
  };

  Dropzone.instances = [];

  Dropzone.forElement = function(element) {
    if (typeof element === "string") {
      element = document.querySelector(element);
    }
    if ((element != null ? element.dropzone : void 0) == null) {
      throw new Error("No Dropzone found for given element. This is probably because you're trying to access it before Dropzone had the time to initialize. Use the `init` option to setup any additional observers on your Dropzone.");
    }
    return element.dropzone;
  };

  Dropzone.autoDiscover = true;

  Dropzone.discover = function() {
    var checkElements, dropzone, dropzones, _i, _len, _results;
    if (document.querySelectorAll) {
      dropzones = document.querySelectorAll(".dropzone");
    } else {
      dropzones = [];
      checkElements = function(elements) {
        var el, _i, _len, _results;
        _results = [];
        for (_i = 0, _len = elements.length; _i < _len; _i++) {
          el = elements[_i];
          if (/(^| )dropzone($| )/.test(el.className)) {
            _results.push(dropzones.push(el));
          } else {
            _results.push(void 0);
          }
        }
        return _results;
      };
      checkElements(document.getElementsByTagName("div"));
      checkElements(document.getElementsByTagName("form"));
    }
    _results = [];
    for (_i = 0, _len = dropzones.length; _i < _len; _i++) {
      dropzone = dropzones[_i];
      if (Dropzone.optionsForElement(dropzone) !== false) {
        _results.push(new Dropzone(dropzone));
      } else {
        _results.push(void 0);
      }
    }
    return _results;
  };

  Dropzone.blacklistedBrowsers = [/opera.*Macintosh.*version\/12/i];

  Dropzone.isBrowserSupported = function() {
    var capableBrowser, regex, _i, _len, _ref;
    capableBrowser = true;
    if (window.File && window.FileReader && window.FileList && window.Blob && window.FormData && document.querySelector) {
      if (!("classList" in document.createElement("a"))) {
        capableBrowser = false;
      } else {
        _ref = Dropzone.blacklistedBrowsers;
        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
          regex = _ref[_i];
          if (regex.test(navigator.userAgent)) {
            capableBrowser = false;
            continue;
          }
        }
      }
    } else {
      capableBrowser = false;
    }
    return capableBrowser;
  };

  without = function(list, rejectedItem) {
    var item, _i, _len, _results;
    _results = [];
    for (_i = 0, _len = list.length; _i < _len; _i++) {
      item = list[_i];
      if (item !== rejectedItem) {
        _results.push(item);
      }
    }
    return _results;
  };

  camelize = function(str) {
    return str.replace(/[\-_](\w)/g, function(match) {
      return match.charAt(1).toUpperCase();
    });
  };

  Dropzone.createElement = function(string) {
    var div;
    div = document.createElement("div");
    div.innerHTML = string;
    return div.childNodes[0];
  };

  Dropzone.elementInside = function(element, container) {
    if (element === container) {
      return true;
    }
    while (element = element.parentNode) {
      if (element === container) {
        return true;
      }
    }
    return false;
  };

  Dropzone.getElement = function(el, name) {
    var element;
    if (typeof el === "string") {
      element = document.querySelector(el);
    } else if (el.nodeType != null) {
      element = el;
    }
    if (element == null) {
      throw new Error("Invalid `" + name + "` option provided. Please provide a CSS selector or a plain HTML element.");
    }
    return element;
  };

  Dropzone.getElements = function(els, name) {
    var e, el, elements, _i, _j, _len, _len1, _ref;
    if (els instanceof Array) {
      elements = [];
      try {
        for (_i = 0, _len = els.length; _i < _len; _i++) {
          el = els[_i];
          elements.push(this.getElement(el, name));
        }
      } catch (_error) {
        e = _error;
        elements = null;
      }
    } else if (typeof els === "string") {
      elements = [];
      _ref = document.querySelectorAll(els);
      for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) {
        el = _ref[_j];
        elements.push(el);
      }
    } else if (els.nodeType != null) {
      elements = [els];
    }
    if (!((elements != null) && elements.length)) {
      throw new Error("Invalid `" + name + "` option provided. Please provide a CSS selector, a plain HTML element or a list of those.");
    }
    return elements;
  };

  Dropzone.confirm = function(question, accepted, rejected) {
    if (window.confirm(question)) {
      return accepted();
    } else if (rejected != null) {
      return rejected();
    }
  };

  Dropzone.isValidFile = function(file, acceptedFiles) {
    var baseMimeType, mimeType, validType, _i, _len;
    if (!acceptedFiles) {
      return true;
    }
    acceptedFiles = acceptedFiles.split(",");
    mimeType = file.type;
    baseMimeType = mimeType.replace(/\/.*$/, "");
    for (_i = 0, _len = acceptedFiles.length; _i < _len; _i++) {
      validType = acceptedFiles[_i];
      validType = validType.trim();
      if (validType.charAt(0) === ".") {
        if (file.name.toLowerCase().indexOf(validType.toLowerCase(), file.name.length - validType.length) !== -1) {
          return true;
        }
      } else if (/\/\*$/.test(validType)) {
        if (baseMimeType === validType.replace(/\/.*$/, "")) {
          return true;
        }
      } else {
        if (mimeType === validType) {
          return true;
        }
      }
    }
    return false;
  };

  if (typeof jQuery !== "undefined" && jQuery !== null) {
    jQuery.fn.dropzone = function(options) {
      return this.each(function() {
        return new Dropzone(this, options);
      });
    };
  }

  if (typeof module !== "undefined" && module !== null) {
    module.exports = Dropzone;
  } else {
    window.Dropzone = Dropzone;
  }

  Dropzone.ADDED = "added";

  Dropzone.QUEUED = "queued";

  Dropzone.ACCEPTED = Dropzone.QUEUED;

  Dropzone.UPLOADING = "uploading";

  Dropzone.PROCESSING = Dropzone.UPLOADING;

  Dropzone.CANCELED = "canceled";

  Dropzone.ERROR = "error";

  Dropzone.SUCCESS = "success";


  /*
  
  Bugfix for iOS 6 and 7
  Source: http://stackoverflow.com/questions/11929099/html5-canvas-drawimage-ratio-bug-ios
  based on the work of https://github.com/stomita/ios-imagefile-megapixel
   */

  detectVerticalSquash = function(img) {
    var alpha, canvas, ctx, data, ey, ih, iw, py, ratio, sy;
    iw = img.naturalWidth;
    ih = img.naturalHeight;
    canvas = document.createElement("canvas");
    canvas.width = 1;
    canvas.height = ih;
    ctx = canvas.getContext("2d");
    ctx.drawImage(img, 0, 0);
    data = ctx.getImageData(0, 0, 1, ih).data;
    sy = 0;
    ey = ih;
    py = ih;
    while (py > sy) {
      alpha = data[(py - 1) * 4 + 3];
      if (alpha === 0) {
        ey = py;
      } else {
        sy = py;
      }
      py = (ey + sy) >> 1;
    }
    ratio = py / ih;
    if (ratio === 0) {
      return 1;
    } else {
      return ratio;
    }
  };

  drawImageIOSFix = function(ctx, img, sx, sy, sw, sh, dx, dy, dw, dh) {
    var vertSquashRatio;
    vertSquashRatio = detectVerticalSquash(img);
    return ctx.drawImage(img, sx, sy, sw, sh, dx, dy, dw, dh / vertSquashRatio);
  };


  /*
   * contentloaded.js
   *
   * Author: Diego Perini (diego.perini at gmail.com)
   * Summary: cross-browser wrapper for DOMContentLoaded
   * Updated: 20101020
   * License: MIT
   * Version: 1.2
   *
   * URL:
   * http://javascript.nwbox.com/ContentLoaded/
   * http://javascript.nwbox.com/ContentLoaded/MIT-LICENSE
   */

  contentLoaded = function(win, fn) {
    var add, doc, done, init, poll, pre, rem, root, top;
    done = false;
    top = true;
    doc = win.document;
    root = doc.documentElement;
    add = (doc.addEventListener ? "addEventListener" : "attachEvent");
    rem = (doc.addEventListener ? "removeEventListener" : "detachEvent");
    pre = (doc.addEventListener ? "" : "on");
    init = function(e) {
      if (e.type === "readystatechange" && doc.readyState !== "complete") {
        return;
      }
      (e.type === "load" ? win : doc)[rem](pre + e.type, init, false);
      if (!done && (done = true)) {
        return fn.call(win, e.type || e);
      }
    };
    poll = function() {
      var e;
      try {
        root.doScroll("left");
      } catch (_error) {
        e = _error;
        setTimeout(poll, 50);
        return;
      }
      return init("poll");
    };
    if (doc.readyState !== "complete") {
      if (doc.createEventObject && root.doScroll) {
        try {
          top = !win.frameElement;
        } catch (_error) {}
        if (top) {
          poll();
        }
      }
      doc[add](pre + "DOMContentLoaded", init, false);
      doc[add](pre + "readystatechange", init, false);
      return win[add](pre + "load", init, false);
    }
  };

  Dropzone._autoDiscoverFunction = function() {
    if (Dropzone.autoDiscover) {
      return Dropzone.discover();
    }
  };

  contentLoaded(window, Dropzone._autoDiscoverFunction);

}).call(this);/**
 * Eine Sprache erstellen / bearbeiten
 * @param string url
 */
function editLanguage(url) {
	openModalLoading('Name');

	jQuery.ajax({
		url : url
	}).done(function(data) {
		jQuery('#modal .modal-body').html(data);
		jQuery('#modal .save').show().text('Save').on('click', function() {
			var list = document.querySelectorAll('#modal .modal-body FORM INPUT[required]');
			var is_valid = true;
			for(var i = 0; i < list.length; i++) {
				if(list[i].value == "") {
					is_valid = false;
				}
			}
			if(is_valid) {
				jQuery('#modal .modal-body FORM').submit();
			} else {
				alert("Please fill in all required fields!");
			}
		});
	}).fail(function(data) {
		jQuery('#modal .modal-body').html(displayError(data.responseText, data.status + " - " + data.statusText));
	});
};

/**
 * Eine Edition erstellen / Bearbeiten
 * @param string url
 */
function newEdition(url) {
	openModalLoading('Edition');

	jQuery.ajax({
		url : url
	}).done(function(data) {
		jQuery('#modal .modal-body').html(data);
	
	}).fail(function(data) {
		jQuery('#modal .modal-body').html(displayError(data.responseText, data.status + " - " + data.statusText));
	});
};function showFileEntry(url) {
	openModalLoading('Edit entry');

	jQuery.ajax({
		url : url
	}).done(function(data) {
		jQuery('#modal .modal-body').html(data);
	}).fail(function(data) {
		jQuery('#modal .modal-body').html(displayError(data.responseText, data.status + " - " + data.statusText));
	});
};

/**
 * Eine Sprache erstellen / bearbeiten
 * @param string url
 */
function editFileEdition(url) {
	openModalLoading('Edition');

	jQuery.ajax({
		url : url
	}).done(function(data) {
		jQuery('#modal .modal-body').html(data);
		jQuery('#modal .save').show().text('Save').on('click', function() {
			var list = document.querySelectorAll('#modal .modal-body FORM INPUT[required]');
			var is_valid = true;
			for(var i = 0; i < list.length; i++) {
				if(list[i].value == "") {
					is_valid = false;
				}
			}
			if(is_valid) {
				jQuery('#modal .modal-body FORM').submit();
			} else {
				alert("Please fill in all required fields!");
			}
		});
	}).fail(function(data) {
		jQuery('#modal .modal-body').html(displayError(data.responseText, data.status + " - " + data.statusText));
	});
};/**!
 * Sortable 1.15.0
 * @author	RubaXa   <trash@rubaxa.org>
 * @author	owenm    <owen23355@gmail.com>
 * @license MIT
 */
(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
        typeof define === 'function' && define.amd ? define(factory) :
            (global = global || self, global.Sortable = factory());
}(this, (function () { 'use strict';

    function ownKeys(object, enumerableOnly) {
        var keys = Object.keys(object);

        if (Object.getOwnPropertySymbols) {
            var symbols = Object.getOwnPropertySymbols(object);

            if (enumerableOnly) {
                symbols = symbols.filter(function (sym) {
                    return Object.getOwnPropertyDescriptor(object, sym).enumerable;
                });
            }

            keys.push.apply(keys, symbols);
        }

        return keys;
    }

    function _objectSpread2(target) {
        for (var i = 1; i < arguments.length; i++) {
            var source = arguments[i] != null ? arguments[i] : {};

            if (i % 2) {
                ownKeys(Object(source), true).forEach(function (key) {
                    _defineProperty(target, key, source[key]);
                });
            } else if (Object.getOwnPropertyDescriptors) {
                Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
            } else {
                ownKeys(Object(source)).forEach(function (key) {
                    Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
                });
            }
        }

        return target;
    }

    function _typeof(obj) {
        "@babel/helpers - typeof";

        if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
            _typeof = function (obj) {
                return typeof obj;
            };
        } else {
            _typeof = function (obj) {
                return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
            };
        }

        return _typeof(obj);
    }

    function _defineProperty(obj, key, value) {
        if (key in obj) {
            Object.defineProperty(obj, key, {
                value: value,
                enumerable: true,
                configurable: true,
                writable: true
            });
        } else {
            obj[key] = value;
        }

        return obj;
    }

    function _extends() {
        _extends = Object.assign || function (target) {
            for (var i = 1; i < arguments.length; i++) {
                var source = arguments[i];

                for (var key in source) {
                    if (Object.prototype.hasOwnProperty.call(source, key)) {
                        target[key] = source[key];
                    }
                }
            }

            return target;
        };

        return _extends.apply(this, arguments);
    }

    function _objectWithoutPropertiesLoose(source, excluded) {
        if (source == null) return {};
        var target = {};
        var sourceKeys = Object.keys(source);
        var key, i;

        for (i = 0; i < sourceKeys.length; i++) {
            key = sourceKeys[i];
            if (excluded.indexOf(key) >= 0) continue;
            target[key] = source[key];
        }

        return target;
    }

    function _objectWithoutProperties(source, excluded) {
        if (source == null) return {};

        var target = _objectWithoutPropertiesLoose(source, excluded);

        var key, i;

        if (Object.getOwnPropertySymbols) {
            var sourceSymbolKeys = Object.getOwnPropertySymbols(source);

            for (i = 0; i < sourceSymbolKeys.length; i++) {
                key = sourceSymbolKeys[i];
                if (excluded.indexOf(key) >= 0) continue;
                if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
                target[key] = source[key];
            }
        }

        return target;
    }

    function _toConsumableArray(arr) {
        return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
    }

    function _arrayWithoutHoles(arr) {
        if (Array.isArray(arr)) return _arrayLikeToArray(arr);
    }

    function _iterableToArray(iter) {
        if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
    }

    function _unsupportedIterableToArray(o, minLen) {
        if (!o) return;
        if (typeof o === "string") return _arrayLikeToArray(o, minLen);
        var n = Object.prototype.toString.call(o).slice(8, -1);
        if (n === "Object" && o.constructor) n = o.constructor.name;
        if (n === "Map" || n === "Set") return Array.from(o);
        if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
    }

    function _arrayLikeToArray(arr, len) {
        if (len == null || len > arr.length) len = arr.length;

        for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

        return arr2;
    }

    function _nonIterableSpread() {
        throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
    }

    var version = "1.15.0";

    function userAgent(pattern) {
        if (typeof window !== 'undefined' && window.navigator) {
            return !! /*@__PURE__*/navigator.userAgent.match(pattern);
        }
    }

    var IE11OrLess = userAgent(/(?:Trident.*rv[ :]?11\.|msie|iemobile|Windows Phone)/i);
    var Edge = userAgent(/Edge/i);
    var FireFox = userAgent(/firefox/i);
    var Safari = userAgent(/safari/i) && !userAgent(/chrome/i) && !userAgent(/android/i);
    var IOS = userAgent(/iP(ad|od|hone)/i);
    var ChromeForAndroid = userAgent(/chrome/i) && userAgent(/android/i);

    var captureMode = {
        capture: false,
        passive: false
    };

    function on(el, event, fn) {
        el.addEventListener(event, fn, !IE11OrLess && captureMode);
    }

    function off(el, event, fn) {
        el.removeEventListener(event, fn, !IE11OrLess && captureMode);
    }

    function matches(
        /**HTMLElement*/
        el,
        /**String*/
        selector) {
        if (!selector) return;
        selector[0] === '>' && (selector = selector.substring(1));

        if (el) {
            try {
                if (el.matches) {
                    return el.matches(selector);
                } else if (el.msMatchesSelector) {
                    return el.msMatchesSelector(selector);
                } else if (el.webkitMatchesSelector) {
                    return el.webkitMatchesSelector(selector);
                }
            } catch (_) {
                return false;
            }
        }

        return false;
    }

    function getParentOrHost(el) {
        return el.host && el !== document && el.host.nodeType ? el.host : el.parentNode;
    }

    function closest(
        /**HTMLElement*/
        el,
        /**String*/
        selector,
        /**HTMLElement*/
        ctx, includeCTX) {
        if (el) {
            ctx = ctx || document;

            do {
                if (selector != null && (selector[0] === '>' ? el.parentNode === ctx && matches(el, selector) : matches(el, selector)) || includeCTX && el === ctx) {
                    return el;
                }

                if (el === ctx) break;
                /* jshint boss:true */
            } while (el = getParentOrHost(el));
        }

        return null;
    }

    var R_SPACE = /\s+/g;

    function toggleClass(el, name, state) {
        if (el && name) {
            if (el.classList) {
                el.classList[state ? 'add' : 'remove'](name);
            } else {
                var className = (' ' + el.className + ' ').replace(R_SPACE, ' ').replace(' ' + name + ' ', ' ');
                el.className = (className + (state ? ' ' + name : '')).replace(R_SPACE, ' ');
            }
        }
    }

    function css(el, prop, val) {
        var style = el && el.style;

        if (style) {
            if (val === void 0) {
                if (document.defaultView && document.defaultView.getComputedStyle) {
                    val = document.defaultView.getComputedStyle(el, '');
                } else if (el.currentStyle) {
                    val = el.currentStyle;
                }

                return prop === void 0 ? val : val[prop];
            } else {
                if (!(prop in style) && prop.indexOf('webkit') === -1) {
                    prop = '-webkit-' + prop;
                }

                style[prop] = val + (typeof val === 'string' ? '' : 'px');
            }
        }
    }

    function matrix(el, selfOnly) {
        var appliedTransforms = '';

        if (typeof el === 'string') {
            appliedTransforms = el;
        } else {
            do {
                var transform = css(el, 'transform');

                if (transform && transform !== 'none') {
                    appliedTransforms = transform + ' ' + appliedTransforms;
                }
                /* jshint boss:true */

            } while (!selfOnly && (el = el.parentNode));
        }

        var matrixFn = window.DOMMatrix || window.WebKitCSSMatrix || window.CSSMatrix || window.MSCSSMatrix;
        /*jshint -W056 */

        return matrixFn && new matrixFn(appliedTransforms);
    }

    function find(ctx, tagName, iterator) {
        if (ctx) {
            var list = ctx.getElementsByTagName(tagName),
                i = 0,
                n = list.length;

            if (iterator) {
                for (; i < n; i++) {
                    iterator(list[i], i);
                }
            }

            return list;
        }

        return [];
    }

    function getWindowScrollingElement() {
        var scrollingElement = document.scrollingElement;

        if (scrollingElement) {
            return scrollingElement;
        } else {
            return document.documentElement;
        }
    }
    /**
     * Returns the "bounding client rect" of given element
     * @param  {HTMLElement} el                       The element whose boundingClientRect is wanted
     * @param  {[Boolean]} relativeToContainingBlock  Whether the rect should be relative to the containing block of (including) the container
     * @param  {[Boolean]} relativeToNonStaticParent  Whether the rect should be relative to the relative parent of (including) the contaienr
     * @param  {[Boolean]} undoScale                  Whether the container's scale() should be undone
     * @param  {[HTMLElement]} container              The parent the element will be placed in
     * @return {Object}                               The boundingClientRect of el, with specified adjustments
     */


    function getRect(el, relativeToContainingBlock, relativeToNonStaticParent, undoScale, container) {
        if (!el.getBoundingClientRect && el !== window) return;
        var elRect, top, left, bottom, right, height, width;

        if (el !== window && el.parentNode && el !== getWindowScrollingElement()) {
            elRect = el.getBoundingClientRect();
            top = elRect.top;
            left = elRect.left;
            bottom = elRect.bottom;
            right = elRect.right;
            height = elRect.height;
            width = elRect.width;
        } else {
            top = 0;
            left = 0;
            bottom = window.innerHeight;
            right = window.innerWidth;
            height = window.innerHeight;
            width = window.innerWidth;
        }

        if ((relativeToContainingBlock || relativeToNonStaticParent) && el !== window) {
            // Adjust for translate()
            container = container || el.parentNode; // solves #1123 (see: https://stackoverflow.com/a/37953806/6088312)
            // Not needed on <= IE11

            if (!IE11OrLess) {
                do {
                    if (container && container.getBoundingClientRect && (css(container, 'transform') !== 'none' || relativeToNonStaticParent && css(container, 'position') !== 'static')) {
                        var containerRect = container.getBoundingClientRect(); // Set relative to edges of padding box of container

                        top -= containerRect.top + parseInt(css(container, 'border-top-width'));
                        left -= containerRect.left + parseInt(css(container, 'border-left-width'));
                        bottom = top + elRect.height;
                        right = left + elRect.width;
                        break;
                    }
                    /* jshint boss:true */

                } while (container = container.parentNode);
            }
        }

        if (undoScale && el !== window) {
            // Adjust for scale()
            var elMatrix = matrix(container || el),
                scaleX = elMatrix && elMatrix.a,
                scaleY = elMatrix && elMatrix.d;

            if (elMatrix) {
                top /= scaleY;
                left /= scaleX;
                width /= scaleX;
                height /= scaleY;
                bottom = top + height;
                right = left + width;
            }
        }

        return {
            top: top,
            left: left,
            bottom: bottom,
            right: right,
            width: width,
            height: height
        };
    }
    /**
     * Checks if a side of an element is scrolled past a side of its parents
     * @param  {HTMLElement}  el           The element who's side being scrolled out of view is in question
     * @param  {String}       elSide       Side of the element in question ('top', 'left', 'right', 'bottom')
     * @param  {String}       parentSide   Side of the parent in question ('top', 'left', 'right', 'bottom')
     * @return {HTMLElement}               The parent scroll element that the el's side is scrolled past, or null if there is no such element
     */


    function isScrolledPast(el, elSide, parentSide) {
        var parent = getParentAutoScrollElement(el, true),
            elSideVal = getRect(el)[elSide];
        /* jshint boss:true */

        while (parent) {
            var parentSideVal = getRect(parent)[parentSide],
                visible = void 0;

            if (parentSide === 'top' || parentSide === 'left') {
                visible = elSideVal >= parentSideVal;
            } else {
                visible = elSideVal <= parentSideVal;
            }

            if (!visible) return parent;
            if (parent === getWindowScrollingElement()) break;
            parent = getParentAutoScrollElement(parent, false);
        }

        return false;
    }
    /**
     * Gets nth child of el, ignoring hidden children, sortable's elements (does not ignore clone if it's visible)
     * and non-draggable elements
     * @param  {HTMLElement} el       The parent element
     * @param  {Number} childNum      The index of the child
     * @param  {Object} options       Parent Sortable's options
     * @return {HTMLElement}          The child at index childNum, or null if not found
     */


    function getChild(el, childNum, options, includeDragEl) {
        var currentChild = 0,
            i = 0,
            children = el.children;

        while (i < children.length) {
            if (children[i].style.display !== 'none' && children[i] !== Sortable.ghost && (includeDragEl || children[i] !== Sortable.dragged) && closest(children[i], options.draggable, el, false)) {
                if (currentChild === childNum) {
                    return children[i];
                }

                currentChild++;
            }

            i++;
        }

        return null;
    }
    /**
     * Gets the last child in the el, ignoring ghostEl or invisible elements (clones)
     * @param  {HTMLElement} el       Parent element
     * @param  {selector} selector    Any other elements that should be ignored
     * @return {HTMLElement}          The last child, ignoring ghostEl
     */


    function lastChild(el, selector) {
        var last = el.lastElementChild;

        while (last && (last === Sortable.ghost || css(last, 'display') === 'none' || selector && !matches(last, selector))) {
            last = last.previousElementSibling;
        }

        return last || null;
    }
    /**
     * Returns the index of an element within its parent for a selected set of
     * elements
     * @param  {HTMLElement} el
     * @param  {selector} selector
     * @return {number}
     */


    function index(el, selector) {
        var index = 0;

        if (!el || !el.parentNode) {
            return -1;
        }
        /* jshint boss:true */


        while (el = el.previousElementSibling) {
            if (el.nodeName.toUpperCase() !== 'TEMPLATE' && el !== Sortable.clone && (!selector || matches(el, selector))) {
                index++;
            }
        }

        return index;
    }
    /**
     * Returns the scroll offset of the given element, added with all the scroll offsets of parent elements.
     * The value is returned in real pixels.
     * @param  {HTMLElement} el
     * @return {Array}             Offsets in the format of [left, top]
     */


    function getRelativeScrollOffset(el) {
        var offsetLeft = 0,
            offsetTop = 0,
            winScroller = getWindowScrollingElement();

        if (el) {
            do {
                var elMatrix = matrix(el),
                    scaleX = elMatrix.a,
                    scaleY = elMatrix.d;
                offsetLeft += el.scrollLeft * scaleX;
                offsetTop += el.scrollTop * scaleY;
            } while (el !== winScroller && (el = el.parentNode));
        }

        return [offsetLeft, offsetTop];
    }
    /**
     * Returns the index of the object within the given array
     * @param  {Array} arr   Array that may or may not hold the object
     * @param  {Object} obj  An object that has a key-value pair unique to and identical to a key-value pair in the object you want to find
     * @return {Number}      The index of the object in the array, or -1
     */


    function indexOfObject(arr, obj) {
        for (var i in arr) {
            if (!arr.hasOwnProperty(i)) continue;

            for (var key in obj) {
                if (obj.hasOwnProperty(key) && obj[key] === arr[i][key]) return Number(i);
            }
        }

        return -1;
    }

    function getParentAutoScrollElement(el, includeSelf) {
        // skip to window
        if (!el || !el.getBoundingClientRect) return getWindowScrollingElement();
        var elem = el;
        var gotSelf = false;

        do {
            // we don't need to get elem css if it isn't even overflowing in the first place (performance)
            if (elem.clientWidth < elem.scrollWidth || elem.clientHeight < elem.scrollHeight) {
                var elemCSS = css(elem);

                if (elem.clientWidth < elem.scrollWidth && (elemCSS.overflowX == 'auto' || elemCSS.overflowX == 'scroll') || elem.clientHeight < elem.scrollHeight && (elemCSS.overflowY == 'auto' || elemCSS.overflowY == 'scroll')) {
                    if (!elem.getBoundingClientRect || elem === document.body) return getWindowScrollingElement();
                    if (gotSelf || includeSelf) return elem;
                    gotSelf = true;
                }
            }
            /* jshint boss:true */

        } while (elem = elem.parentNode);

        return getWindowScrollingElement();
    }

    function extend(dst, src) {
        if (dst && src) {
            for (var key in src) {
                if (src.hasOwnProperty(key)) {
                    dst[key] = src[key];
                }
            }
        }

        return dst;
    }

    function isRectEqual(rect1, rect2) {
        return Math.round(rect1.top) === Math.round(rect2.top) && Math.round(rect1.left) === Math.round(rect2.left) && Math.round(rect1.height) === Math.round(rect2.height) && Math.round(rect1.width) === Math.round(rect2.width);
    }

    var _throttleTimeout;

    function throttle(callback, ms) {
        return function () {
            if (!_throttleTimeout) {
                var args = arguments,
                    _this = this;

                if (args.length === 1) {
                    callback.call(_this, args[0]);
                } else {
                    callback.apply(_this, args);
                }

                _throttleTimeout = setTimeout(function () {
                    _throttleTimeout = void 0;
                }, ms);
            }
        };
    }

    function cancelThrottle() {
        clearTimeout(_throttleTimeout);
        _throttleTimeout = void 0;
    }

    function scrollBy(el, x, y) {
        el.scrollLeft += x;
        el.scrollTop += y;
    }

    function clone(el) {
        var Polymer = window.Polymer;
        var $ = window.jQuery || window.Zepto;

        if (Polymer && Polymer.dom) {
            return Polymer.dom(el).cloneNode(true);
        } else if ($) {
            return $(el).clone(true)[0];
        } else {
            return el.cloneNode(true);
        }
    }

    function setRect(el, rect) {
        css(el, 'position', 'absolute');
        css(el, 'top', rect.top);
        css(el, 'left', rect.left);
        css(el, 'width', rect.width);
        css(el, 'height', rect.height);
    }

    function unsetRect(el) {
        css(el, 'position', '');
        css(el, 'top', '');
        css(el, 'left', '');
        css(el, 'width', '');
        css(el, 'height', '');
    }

    var expando = 'Sortable' + new Date().getTime();

    function AnimationStateManager() {
        var animationStates = [],
            animationCallbackId;
        return {
            captureAnimationState: function captureAnimationState() {
                animationStates = [];
                if (!this.options.animation) return;
                var children = [].slice.call(this.el.children);
                children.forEach(function (child) {
                    if (css(child, 'display') === 'none' || child === Sortable.ghost) return;
                    animationStates.push({
                        target: child,
                        rect: getRect(child)
                    });

                    var fromRect = _objectSpread2({}, animationStates[animationStates.length - 1].rect); // If animating: compensate for current animation


                    if (child.thisAnimationDuration) {
                        var childMatrix = matrix(child, true);

                        if (childMatrix) {
                            fromRect.top -= childMatrix.f;
                            fromRect.left -= childMatrix.e;
                        }
                    }

                    child.fromRect = fromRect;
                });
            },
            addAnimationState: function addAnimationState(state) {
                animationStates.push(state);
            },
            removeAnimationState: function removeAnimationState(target) {
                animationStates.splice(indexOfObject(animationStates, {
                    target: target
                }), 1);
            },
            animateAll: function animateAll(callback) {
                var _this = this;

                if (!this.options.animation) {
                    clearTimeout(animationCallbackId);
                    if (typeof callback === 'function') callback();
                    return;
                }

                var animating = false,
                    animationTime = 0;
                animationStates.forEach(function (state) {
                    var time = 0,
                        target = state.target,
                        fromRect = target.fromRect,
                        toRect = getRect(target),
                        prevFromRect = target.prevFromRect,
                        prevToRect = target.prevToRect,
                        animatingRect = state.rect,
                        targetMatrix = matrix(target, true);

                    if (targetMatrix) {
                        // Compensate for current animation
                        toRect.top -= targetMatrix.f;
                        toRect.left -= targetMatrix.e;
                    }

                    target.toRect = toRect;

                    if (target.thisAnimationDuration) {
                        // Could also check if animatingRect is between fromRect and toRect
                        if (isRectEqual(prevFromRect, toRect) && !isRectEqual(fromRect, toRect) && // Make sure animatingRect is on line between toRect & fromRect
                            (animatingRect.top - toRect.top) / (animatingRect.left - toRect.left) === (fromRect.top - toRect.top) / (fromRect.left - toRect.left)) {
                            // If returning to same place as started from animation and on same axis
                            time = calculateRealTime(animatingRect, prevFromRect, prevToRect, _this.options);
                        }
                    } // if fromRect != toRect: animate


                    if (!isRectEqual(toRect, fromRect)) {
                        target.prevFromRect = fromRect;
                        target.prevToRect = toRect;

                        if (!time) {
                            time = _this.options.animation;
                        }

                        _this.animate(target, animatingRect, toRect, time);
                    }

                    if (time) {
                        animating = true;
                        animationTime = Math.max(animationTime, time);
                        clearTimeout(target.animationResetTimer);
                        target.animationResetTimer = setTimeout(function () {
                            target.animationTime = 0;
                            target.prevFromRect = null;
                            target.fromRect = null;
                            target.prevToRect = null;
                            target.thisAnimationDuration = null;
                        }, time);
                        target.thisAnimationDuration = time;
                    }
                });
                clearTimeout(animationCallbackId);

                if (!animating) {
                    if (typeof callback === 'function') callback();
                } else {
                    animationCallbackId = setTimeout(function () {
                        if (typeof callback === 'function') callback();
                    }, animationTime);
                }

                animationStates = [];
            },
            animate: function animate(target, currentRect, toRect, duration) {
                if (duration) {
                    css(target, 'transition', '');
                    css(target, 'transform', '');
                    var elMatrix = matrix(this.el),
                        scaleX = elMatrix && elMatrix.a,
                        scaleY = elMatrix && elMatrix.d,
                        translateX = (currentRect.left - toRect.left) / (scaleX || 1),
                        translateY = (currentRect.top - toRect.top) / (scaleY || 1);
                    target.animatingX = !!translateX;
                    target.animatingY = !!translateY;
                    css(target, 'transform', 'translate3d(' + translateX + 'px,' + translateY + 'px,0)');
                    this.forRepaintDummy = repaint(target); // repaint

                    css(target, 'transition', 'transform ' + duration + 'ms' + (this.options.easing ? ' ' + this.options.easing : ''));
                    css(target, 'transform', 'translate3d(0,0,0)');
                    typeof target.animated === 'number' && clearTimeout(target.animated);
                    target.animated = setTimeout(function () {
                        css(target, 'transition', '');
                        css(target, 'transform', '');
                        target.animated = false;
                        target.animatingX = false;
                        target.animatingY = false;
                    }, duration);
                }
            }
        };
    }

    function repaint(target) {
        return target.offsetWidth;
    }

    function calculateRealTime(animatingRect, fromRect, toRect, options) {
        return Math.sqrt(Math.pow(fromRect.top - animatingRect.top, 2) + Math.pow(fromRect.left - animatingRect.left, 2)) / Math.sqrt(Math.pow(fromRect.top - toRect.top, 2) + Math.pow(fromRect.left - toRect.left, 2)) * options.animation;
    }

    var plugins = [];
    var defaults = {
        initializeByDefault: true
    };
    var PluginManager = {
        mount: function mount(plugin) {
            // Set default static properties
            for (var option in defaults) {
                if (defaults.hasOwnProperty(option) && !(option in plugin)) {
                    plugin[option] = defaults[option];
                }
            }

            plugins.forEach(function (p) {
                if (p.pluginName === plugin.pluginName) {
                    throw "Sortable: Cannot mount plugin ".concat(plugin.pluginName, " more than once");
                }
            });
            plugins.push(plugin);
        },
        pluginEvent: function pluginEvent(eventName, sortable, evt) {
            var _this = this;

            this.eventCanceled = false;

            evt.cancel = function () {
                _this.eventCanceled = true;
            };

            var eventNameGlobal = eventName + 'Global';
            plugins.forEach(function (plugin) {
                if (!sortable[plugin.pluginName]) return; // Fire global events if it exists in this sortable

                if (sortable[plugin.pluginName][eventNameGlobal]) {
                    sortable[plugin.pluginName][eventNameGlobal](_objectSpread2({
                        sortable: sortable
                    }, evt));
                } // Only fire plugin event if plugin is enabled in this sortable,
                // and plugin has event defined


                if (sortable.options[plugin.pluginName] && sortable[plugin.pluginName][eventName]) {
                    sortable[plugin.pluginName][eventName](_objectSpread2({
                        sortable: sortable
                    }, evt));
                }
            });
        },
        initializePlugins: function initializePlugins(sortable, el, defaults, options) {
            plugins.forEach(function (plugin) {
                var pluginName = plugin.pluginName;
                if (!sortable.options[pluginName] && !plugin.initializeByDefault) return;
                var initialized = new plugin(sortable, el, sortable.options);
                initialized.sortable = sortable;
                initialized.options = sortable.options;
                sortable[pluginName] = initialized; // Add default options from plugin

                _extends(defaults, initialized.defaults);
            });

            for (var option in sortable.options) {
                if (!sortable.options.hasOwnProperty(option)) continue;
                var modified = this.modifyOption(sortable, option, sortable.options[option]);

                if (typeof modified !== 'undefined') {
                    sortable.options[option] = modified;
                }
            }
        },
        getEventProperties: function getEventProperties(name, sortable) {
            var eventProperties = {};
            plugins.forEach(function (plugin) {
                if (typeof plugin.eventProperties !== 'function') return;

                _extends(eventProperties, plugin.eventProperties.call(sortable[plugin.pluginName], name));
            });
            return eventProperties;
        },
        modifyOption: function modifyOption(sortable, name, value) {
            var modifiedValue;
            plugins.forEach(function (plugin) {
                // Plugin must exist on the Sortable
                if (!sortable[plugin.pluginName]) return; // If static option listener exists for this option, call in the context of the Sortable's instance of this plugin

                if (plugin.optionListeners && typeof plugin.optionListeners[name] === 'function') {
                    modifiedValue = plugin.optionListeners[name].call(sortable[plugin.pluginName], value);
                }
            });
            return modifiedValue;
        }
    };

    function dispatchEvent(_ref) {
        var sortable = _ref.sortable,
            rootEl = _ref.rootEl,
            name = _ref.name,
            targetEl = _ref.targetEl,
            cloneEl = _ref.cloneEl,
            toEl = _ref.toEl,
            fromEl = _ref.fromEl,
            oldIndex = _ref.oldIndex,
            newIndex = _ref.newIndex,
            oldDraggableIndex = _ref.oldDraggableIndex,
            newDraggableIndex = _ref.newDraggableIndex,
            originalEvent = _ref.originalEvent,
            putSortable = _ref.putSortable,
            extraEventProperties = _ref.extraEventProperties;
        sortable = sortable || rootEl && rootEl[expando];
        if (!sortable) return;
        var evt,
            options = sortable.options,
            onName = 'on' + name.charAt(0).toUpperCase() + name.substr(1); // Support for new CustomEvent feature

        if (window.CustomEvent && !IE11OrLess && !Edge) {
            evt = new CustomEvent(name, {
                bubbles: true,
                cancelable: true
            });
        } else {
            evt = document.createEvent('Event');
            evt.initEvent(name, true, true);
        }

        evt.to = toEl || rootEl;
        evt.from = fromEl || rootEl;
        evt.item = targetEl || rootEl;
        evt.clone = cloneEl;
        evt.oldIndex = oldIndex;
        evt.newIndex = newIndex;
        evt.oldDraggableIndex = oldDraggableIndex;
        evt.newDraggableIndex = newDraggableIndex;
        evt.originalEvent = originalEvent;
        evt.pullMode = putSortable ? putSortable.lastPutMode : undefined;

        var allEventProperties = _objectSpread2(_objectSpread2({}, extraEventProperties), PluginManager.getEventProperties(name, sortable));

        for (var option in allEventProperties) {
            evt[option] = allEventProperties[option];
        }

        if (rootEl) {
            rootEl.dispatchEvent(evt);
        }

        if (options[onName]) {
            options[onName].call(sortable, evt);
        }
    }

    var _excluded = ["evt"];

    var pluginEvent = function pluginEvent(eventName, sortable) {
        var _ref = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
            originalEvent = _ref.evt,
            data = _objectWithoutProperties(_ref, _excluded);

        PluginManager.pluginEvent.bind(Sortable)(eventName, sortable, _objectSpread2({
            dragEl: dragEl,
            parentEl: parentEl,
            ghostEl: ghostEl,
            rootEl: rootEl,
            nextEl: nextEl,
            lastDownEl: lastDownEl,
            cloneEl: cloneEl,
            cloneHidden: cloneHidden,
            dragStarted: moved,
            putSortable: putSortable,
            activeSortable: Sortable.active,
            originalEvent: originalEvent,
            oldIndex: oldIndex,
            oldDraggableIndex: oldDraggableIndex,
            newIndex: newIndex,
            newDraggableIndex: newDraggableIndex,
            hideGhostForTarget: _hideGhostForTarget,
            unhideGhostForTarget: _unhideGhostForTarget,
            cloneNowHidden: function cloneNowHidden() {
                cloneHidden = true;
            },
            cloneNowShown: function cloneNowShown() {
                cloneHidden = false;
            },
            dispatchSortableEvent: function dispatchSortableEvent(name) {
                _dispatchEvent({
                    sortable: sortable,
                    name: name,
                    originalEvent: originalEvent
                });
            }
        }, data));
    };

    function _dispatchEvent(info) {
        dispatchEvent(_objectSpread2({
            putSortable: putSortable,
            cloneEl: cloneEl,
            targetEl: dragEl,
            rootEl: rootEl,
            oldIndex: oldIndex,
            oldDraggableIndex: oldDraggableIndex,
            newIndex: newIndex,
            newDraggableIndex: newDraggableIndex
        }, info));
    }

    var dragEl,
        parentEl,
        ghostEl,
        rootEl,
        nextEl,
        lastDownEl,
        cloneEl,
        cloneHidden,
        oldIndex,
        newIndex,
        oldDraggableIndex,
        newDraggableIndex,
        activeGroup,
        putSortable,
        awaitingDragStarted = false,
        ignoreNextClick = false,
        sortables = [],
        tapEvt,
        touchEvt,
        lastDx,
        lastDy,
        tapDistanceLeft,
        tapDistanceTop,
        moved,
        lastTarget,
        lastDirection,
        pastFirstInvertThresh = false,
        isCircumstantialInvert = false,
        targetMoveDistance,
        // For positioning ghost absolutely
        ghostRelativeParent,
        ghostRelativeParentInitialScroll = [],
        // (left, top)
        _silent = false,
        savedInputChecked = [];
    /** @const */

    var documentExists = typeof document !== 'undefined',
        PositionGhostAbsolutely = IOS,
        CSSFloatProperty = Edge || IE11OrLess ? 'cssFloat' : 'float',
        // This will not pass for IE9, because IE9 DnD only works on anchors
        supportDraggable = documentExists && !ChromeForAndroid && !IOS && 'draggable' in document.createElement('div'),
        supportCssPointerEvents = function () {
            if (!documentExists) return; // false when <= IE11

            if (IE11OrLess) {
                return false;
            }

            var el = document.createElement('x');
            el.style.cssText = 'pointer-events:auto';
            return el.style.pointerEvents === 'auto';
        }(),
        _detectDirection = function _detectDirection(el, options) {
            var elCSS = css(el),
                elWidth = parseInt(elCSS.width) - parseInt(elCSS.paddingLeft) - parseInt(elCSS.paddingRight) - parseInt(elCSS.borderLeftWidth) - parseInt(elCSS.borderRightWidth),
                child1 = getChild(el, 0, options),
                child2 = getChild(el, 1, options),
                firstChildCSS = child1 && css(child1),
                secondChildCSS = child2 && css(child2),
                firstChildWidth = firstChildCSS && parseInt(firstChildCSS.marginLeft) + parseInt(firstChildCSS.marginRight) + getRect(child1).width,
                secondChildWidth = secondChildCSS && parseInt(secondChildCSS.marginLeft) + parseInt(secondChildCSS.marginRight) + getRect(child2).width;

            if (elCSS.display === 'flex') {
                return elCSS.flexDirection === 'column' || elCSS.flexDirection === 'column-reverse' ? 'vertical' : 'horizontal';
            }

            if (elCSS.display === 'grid') {
                return elCSS.gridTemplateColumns.split(' ').length <= 1 ? 'vertical' : 'horizontal';
            }

            if (child1 && firstChildCSS["float"] && firstChildCSS["float"] !== 'none') {
                var touchingSideChild2 = firstChildCSS["float"] === 'left' ? 'left' : 'right';
                return child2 && (secondChildCSS.clear === 'both' || secondChildCSS.clear === touchingSideChild2) ? 'vertical' : 'horizontal';
            }

            return child1 && (firstChildCSS.display === 'block' || firstChildCSS.display === 'flex' || firstChildCSS.display === 'table' || firstChildCSS.display === 'grid' || firstChildWidth >= elWidth && elCSS[CSSFloatProperty] === 'none' || child2 && elCSS[CSSFloatProperty] === 'none' && firstChildWidth + secondChildWidth > elWidth) ? 'vertical' : 'horizontal';
        },
        _dragElInRowColumn = function _dragElInRowColumn(dragRect, targetRect, vertical) {
            var dragElS1Opp = vertical ? dragRect.left : dragRect.top,
                dragElS2Opp = vertical ? dragRect.right : dragRect.bottom,
                dragElOppLength = vertical ? dragRect.width : dragRect.height,
                targetS1Opp = vertical ? targetRect.left : targetRect.top,
                targetS2Opp = vertical ? targetRect.right : targetRect.bottom,
                targetOppLength = vertical ? targetRect.width : targetRect.height;
            return dragElS1Opp === targetS1Opp || dragElS2Opp === targetS2Opp || dragElS1Opp + dragElOppLength / 2 === targetS1Opp + targetOppLength / 2;
        },

        /**
         * Detects first nearest empty sortable to X and Y position using emptyInsertThreshold.
         * @param  {Number} x      X position
         * @param  {Number} y      Y position
         * @return {HTMLElement}   Element of the first found nearest Sortable
         */
        _detectNearestEmptySortable = function _detectNearestEmptySortable(x, y) {
            var ret;
            sortables.some(function (sortable) {
                var threshold = sortable[expando].options.emptyInsertThreshold;
                if (!threshold || lastChild(sortable)) return;
                var rect = getRect(sortable),
                    insideHorizontally = x >= rect.left - threshold && x <= rect.right + threshold,
                    insideVertically = y >= rect.top - threshold && y <= rect.bottom + threshold;

                if (insideHorizontally && insideVertically) {
                    return ret = sortable;
                }
            });
            return ret;
        },
        _prepareGroup = function _prepareGroup(options) {
            function toFn(value, pull) {
                return function (to, from, dragEl, evt) {
                    var sameGroup = to.options.group.name && from.options.group.name && to.options.group.name === from.options.group.name;

                    if (value == null && (pull || sameGroup)) {
                        // Default pull value
                        // Default pull and put value if same group
                        return true;
                    } else if (value == null || value === false) {
                        return false;
                    } else if (pull && value === 'clone') {
                        return value;
                    } else if (typeof value === 'function') {
                        return toFn(value(to, from, dragEl, evt), pull)(to, from, dragEl, evt);
                    } else {
                        var otherGroup = (pull ? to : from).options.group.name;
                        return value === true || typeof value === 'string' && value === otherGroup || value.join && value.indexOf(otherGroup) > -1;
                    }
                };
            }

            var group = {};
            var originalGroup = options.group;

            if (!originalGroup || _typeof(originalGroup) != 'object') {
                originalGroup = {
                    name: originalGroup
                };
            }

            group.name = originalGroup.name;
            group.checkPull = toFn(originalGroup.pull, true);
            group.checkPut = toFn(originalGroup.put);
            group.revertClone = originalGroup.revertClone;
            options.group = group;
        },
        _hideGhostForTarget = function _hideGhostForTarget() {
            if (!supportCssPointerEvents && ghostEl) {
                css(ghostEl, 'display', 'none');
            }
        },
        _unhideGhostForTarget = function _unhideGhostForTarget() {
            if (!supportCssPointerEvents && ghostEl) {
                css(ghostEl, 'display', '');
            }
        }; // #1184 fix - Prevent click event on fallback if dragged but item not changed position


    if (documentExists && !ChromeForAndroid) {
        document.addEventListener('click', function (evt) {
            if (ignoreNextClick) {
                evt.preventDefault();
                evt.stopPropagation && evt.stopPropagation();
                evt.stopImmediatePropagation && evt.stopImmediatePropagation();
                ignoreNextClick = false;
                return false;
            }
        }, true);
    }

    var nearestEmptyInsertDetectEvent = function nearestEmptyInsertDetectEvent(evt) {
        if (dragEl) {
            evt = evt.touches ? evt.touches[0] : evt;

            var nearest = _detectNearestEmptySortable(evt.clientX, evt.clientY);

            if (nearest) {
                // Create imitation event
                var event = {};

                for (var i in evt) {
                    if (evt.hasOwnProperty(i)) {
                        event[i] = evt[i];
                    }
                }

                event.target = event.rootEl = nearest;
                event.preventDefault = void 0;
                event.stopPropagation = void 0;

                nearest[expando]._onDragOver(event);
            }
        }
    };

    var _checkOutsideTargetEl = function _checkOutsideTargetEl(evt) {
        if (dragEl) {
            dragEl.parentNode[expando]._isOutsideThisEl(evt.target);
        }
    };
    /**
     * @class  Sortable
     * @param  {HTMLElement}  el
     * @param  {Object}       [options]
     */


    function Sortable(el, options) {
        if (!(el && el.nodeType && el.nodeType === 1)) {
            throw "Sortable: `el` must be an HTMLElement, not ".concat({}.toString.call(el));
        }

        this.el = el; // root element

        this.options = options = _extends({}, options); // Export instance

        el[expando] = this;
        var defaults = {
            group: null,
            sort: true,
            disabled: false,
            store: null,
            handle: null,
            draggable: /^[uo]l$/i.test(el.nodeName) ? '>li' : '>*',
            swapThreshold: 1,
            // percentage; 0 <= x <= 1
            invertSwap: false,
            // invert always
            invertedSwapThreshold: null,
            // will be set to same as swapThreshold if default
            removeCloneOnHide: true,
            direction: function direction() {
                return _detectDirection(el, this.options);
            },
            ghostClass: 'sortable-ghost',
            chosenClass: 'sortable-chosen',
            dragClass: 'sortable-drag',
            ignore: 'a, img',
            filter: null,
            preventOnFilter: true,
            animation: 0,
            easing: null,
            setData: function setData(dataTransfer, dragEl) {
                dataTransfer.setData('Text', dragEl.textContent);
            },
            dropBubble: false,
            dragoverBubble: false,
            dataIdAttr: 'data-id',
            delay: 0,
            delayOnTouchOnly: false,
            touchStartThreshold: (Number.parseInt ? Number : window).parseInt(window.devicePixelRatio, 10) || 1,
            forceFallback: false,
            fallbackClass: 'sortable-fallback',
            fallbackOnBody: false,
            fallbackTolerance: 0,
            fallbackOffset: {
                x: 0,
                y: 0
            },
            supportPointer: Sortable.supportPointer !== false && 'PointerEvent' in window && !Safari,
            emptyInsertThreshold: 5
        };
        PluginManager.initializePlugins(this, el, defaults); // Set default options

        for (var name in defaults) {
            !(name in options) && (options[name] = defaults[name]);
        }

        _prepareGroup(options); // Bind all private methods


        for (var fn in this) {
            if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
                this[fn] = this[fn].bind(this);
            }
        } // Setup drag mode


        this.nativeDraggable = options.forceFallback ? false : supportDraggable;

        if (this.nativeDraggable) {
            // Touch start threshold cannot be greater than the native dragstart threshold
            this.options.touchStartThreshold = 1;
        } // Bind events


        if (options.supportPointer) {
            on(el, 'pointerdown', this._onTapStart);
        } else {
            on(el, 'mousedown', this._onTapStart);
            on(el, 'touchstart', this._onTapStart);
        }

        if (this.nativeDraggable) {
            on(el, 'dragover', this);
            on(el, 'dragenter', this);
        }

        sortables.push(this.el); // Restore sorting

        options.store && options.store.get && this.sort(options.store.get(this) || []); // Add animation state manager

        _extends(this, AnimationStateManager());
    }

    Sortable.prototype =
        /** @lends Sortable.prototype */
        {
            constructor: Sortable,
            _isOutsideThisEl: function _isOutsideThisEl(target) {
                if (!this.el.contains(target) && target !== this.el) {
                    lastTarget = null;
                }
            },
            _getDirection: function _getDirection(evt, target) {
                return typeof this.options.direction === 'function' ? this.options.direction.call(this, evt, target, dragEl) : this.options.direction;
            },
            _onTapStart: function _onTapStart(
                /** Event|TouchEvent */
                evt) {
                if (!evt.cancelable) return;

                var _this = this,
                    el = this.el,
                    options = this.options,
                    preventOnFilter = options.preventOnFilter,
                    type = evt.type,
                    touch = evt.touches && evt.touches[0] || evt.pointerType && evt.pointerType === 'touch' && evt,
                    target = (touch || evt).target,
                    originalTarget = evt.target.shadowRoot && (evt.path && evt.path[0] || evt.composedPath && evt.composedPath()[0]) || target,
                    filter = options.filter;

                _saveInputCheckedState(el); // Don't trigger start event when an element is been dragged, otherwise the evt.oldindex always wrong when set option.group.


                if (dragEl) {
                    return;
                }

                if (/mousedown|pointerdown/.test(type) && evt.button !== 0 || options.disabled) {
                    return; // only left button and enabled
                } // cancel dnd if original target is content editable


                if (originalTarget.isContentEditable) {
                    return;
                } // Safari ignores further event handling after mousedown


                if (!this.nativeDraggable && Safari && target && target.tagName.toUpperCase() === 'SELECT') {
                    return;
                }

                target = closest(target, options.draggable, el, false);

                if (target && target.animated) {
                    return;
                }

                if (lastDownEl === target) {
                    // Ignoring duplicate `down`
                    return;
                } // Get the index of the dragged element within its parent


                oldIndex = index(target);
                oldDraggableIndex = index(target, options.draggable); // Check filter

                if (typeof filter === 'function') {
                    if (filter.call(this, evt, target, this)) {
                        _dispatchEvent({
                            sortable: _this,
                            rootEl: originalTarget,
                            name: 'filter',
                            targetEl: target,
                            toEl: el,
                            fromEl: el
                        });

                        pluginEvent('filter', _this, {
                            evt: evt
                        });
                        preventOnFilter && evt.cancelable && evt.preventDefault();
                        return; // cancel dnd
                    }
                } else if (filter) {
                    filter = filter.split(',').some(function (criteria) {
                        criteria = closest(originalTarget, criteria.trim(), el, false);

                        if (criteria) {
                            _dispatchEvent({
                                sortable: _this,
                                rootEl: criteria,
                                name: 'filter',
                                targetEl: target,
                                fromEl: el,
                                toEl: el
                            });

                            pluginEvent('filter', _this, {
                                evt: evt
                            });
                            return true;
                        }
                    });

                    if (filter) {
                        preventOnFilter && evt.cancelable && evt.preventDefault();
                        return; // cancel dnd
                    }
                }

                if (options.handle && !closest(originalTarget, options.handle, el, false)) {
                    return;
                } // Prepare `dragstart`


                this._prepareDragStart(evt, touch, target);
            },
            _prepareDragStart: function _prepareDragStart(
                /** Event */
                evt,
                /** Touch */
                touch,
                /** HTMLElement */
                target) {
                var _this = this,
                    el = _this.el,
                    options = _this.options,
                    ownerDocument = el.ownerDocument,
                    dragStartFn;

                if (target && !dragEl && target.parentNode === el) {
                    var dragRect = getRect(target);
                    rootEl = el;
                    dragEl = target;
                    parentEl = dragEl.parentNode;
                    nextEl = dragEl.nextSibling;
                    lastDownEl = target;
                    activeGroup = options.group;
                    Sortable.dragged = dragEl;
                    tapEvt = {
                        target: dragEl,
                        clientX: (touch || evt).clientX,
                        clientY: (touch || evt).clientY
                    };
                    tapDistanceLeft = tapEvt.clientX - dragRect.left;
                    tapDistanceTop = tapEvt.clientY - dragRect.top;
                    this._lastX = (touch || evt).clientX;
                    this._lastY = (touch || evt).clientY;
                    dragEl.style['will-change'] = 'all';

                    dragStartFn = function dragStartFn() {
                        pluginEvent('delayEnded', _this, {
                            evt: evt
                        });

                        if (Sortable.eventCanceled) {
                            _this._onDrop();

                            return;
                        } // Delayed drag has been triggered
                        // we can re-enable the events: touchmove/mousemove


                        _this._disableDelayedDragEvents();

                        if (!FireFox && _this.nativeDraggable) {
                            dragEl.draggable = true;
                        } // Bind the events: dragstart/dragend


                        _this._triggerDragStart(evt, touch); // Drag start event


                        _dispatchEvent({
                            sortable: _this,
                            name: 'choose',
                            originalEvent: evt
                        }); // Chosen item


                        toggleClass(dragEl, options.chosenClass, true);
                    }; // Disable "draggable"


                    options.ignore.split(',').forEach(function (criteria) {
                        find(dragEl, criteria.trim(), _disableDraggable);
                    });
                    on(ownerDocument, 'dragover', nearestEmptyInsertDetectEvent);
                    on(ownerDocument, 'mousemove', nearestEmptyInsertDetectEvent);
                    on(ownerDocument, 'touchmove', nearestEmptyInsertDetectEvent);
                    on(ownerDocument, 'mouseup', _this._onDrop);
                    on(ownerDocument, 'touchend', _this._onDrop);
                    on(ownerDocument, 'touchcancel', _this._onDrop); // Make dragEl draggable (must be before delay for FireFox)

                    if (FireFox && this.nativeDraggable) {
                        this.options.touchStartThreshold = 4;
                        dragEl.draggable = true;
                    }

                    pluginEvent('delayStart', this, {
                        evt: evt
                    }); // Delay is impossible for native DnD in Edge or IE

                    if (options.delay && (!options.delayOnTouchOnly || touch) && (!this.nativeDraggable || !(Edge || IE11OrLess))) {
                        if (Sortable.eventCanceled) {
                            this._onDrop();

                            return;
                        } // If the user moves the pointer or let go the click or touch
                        // before the delay has been reached:
                        // disable the delayed drag


                        on(ownerDocument, 'mouseup', _this._disableDelayedDrag);
                        on(ownerDocument, 'touchend', _this._disableDelayedDrag);
                        on(ownerDocument, 'touchcancel', _this._disableDelayedDrag);
                        on(ownerDocument, 'mousemove', _this._delayedDragTouchMoveHandler);
                        on(ownerDocument, 'touchmove', _this._delayedDragTouchMoveHandler);
                        options.supportPointer && on(ownerDocument, 'pointermove', _this._delayedDragTouchMoveHandler);
                        _this._dragStartTimer = setTimeout(dragStartFn, options.delay);
                    } else {
                        dragStartFn();
                    }
                }
            },
            _delayedDragTouchMoveHandler: function _delayedDragTouchMoveHandler(
                /** TouchEvent|PointerEvent **/
                e) {
                var touch = e.touches ? e.touches[0] : e;

                if (Math.max(Math.abs(touch.clientX - this._lastX), Math.abs(touch.clientY - this._lastY)) >= Math.floor(this.options.touchStartThreshold / (this.nativeDraggable && window.devicePixelRatio || 1))) {
                    this._disableDelayedDrag();
                }
            },
            _disableDelayedDrag: function _disableDelayedDrag() {
                dragEl && _disableDraggable(dragEl);
                clearTimeout(this._dragStartTimer);

                this._disableDelayedDragEvents();
            },
            _disableDelayedDragEvents: function _disableDelayedDragEvents() {
                var ownerDocument = this.el.ownerDocument;
                off(ownerDocument, 'mouseup', this._disableDelayedDrag);
                off(ownerDocument, 'touchend', this._disableDelayedDrag);
                off(ownerDocument, 'touchcancel', this._disableDelayedDrag);
                off(ownerDocument, 'mousemove', this._delayedDragTouchMoveHandler);
                off(ownerDocument, 'touchmove', this._delayedDragTouchMoveHandler);
                off(ownerDocument, 'pointermove', this._delayedDragTouchMoveHandler);
            },
            _triggerDragStart: function _triggerDragStart(
                /** Event */
                evt,
                /** Touch */
                touch) {
                touch = touch || evt.pointerType == 'touch' && evt;

                if (!this.nativeDraggable || touch) {
                    if (this.options.supportPointer) {
                        on(document, 'pointermove', this._onTouchMove);
                    } else if (touch) {
                        on(document, 'touchmove', this._onTouchMove);
                    } else {
                        on(document, 'mousemove', this._onTouchMove);
                    }
                } else {
                    on(dragEl, 'dragend', this);
                    on(rootEl, 'dragstart', this._onDragStart);
                }

                try {
                    if (document.selection) {
                        // Timeout neccessary for IE9
                        _nextTick(function () {
                            document.selection.empty();
                        });
                    } else {
                        window.getSelection().removeAllRanges();
                    }
                } catch (err) {}
            },
            _dragStarted: function _dragStarted(fallback, evt) {

                awaitingDragStarted = false;

                if (rootEl && dragEl) {
                    pluginEvent('dragStarted', this, {
                        evt: evt
                    });

                    if (this.nativeDraggable) {
                        on(document, 'dragover', _checkOutsideTargetEl);
                    }

                    var options = this.options; // Apply effect

                    !fallback && toggleClass(dragEl, options.dragClass, false);
                    toggleClass(dragEl, options.ghostClass, true);
                    Sortable.active = this;
                    fallback && this._appendGhost(); // Drag start event

                    _dispatchEvent({
                        sortable: this,
                        name: 'start',
                        originalEvent: evt
                    });
                } else {
                    this._nulling();
                }
            },
            _emulateDragOver: function _emulateDragOver() {
                if (touchEvt) {
                    this._lastX = touchEvt.clientX;
                    this._lastY = touchEvt.clientY;

                    _hideGhostForTarget();

                    var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
                    var parent = target;

                    while (target && target.shadowRoot) {
                        target = target.shadowRoot.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
                        if (target === parent) break;
                        parent = target;
                    }

                    dragEl.parentNode[expando]._isOutsideThisEl(target);

                    if (parent) {
                        do {
                            if (parent[expando]) {
                                var inserted = void 0;
                                inserted = parent[expando]._onDragOver({
                                    clientX: touchEvt.clientX,
                                    clientY: touchEvt.clientY,
                                    target: target,
                                    rootEl: parent
                                });

                                if (inserted && !this.options.dragoverBubble) {
                                    break;
                                }
                            }

                            target = parent; // store last element
                        }
                            /* jshint boss:true */
                        while (parent = parent.parentNode);
                    }

                    _unhideGhostForTarget();
                }
            },
            _onTouchMove: function _onTouchMove(
                /**TouchEvent*/
                evt) {
                if (tapEvt) {
                    var options = this.options,
                        fallbackTolerance = options.fallbackTolerance,
                        fallbackOffset = options.fallbackOffset,
                        touch = evt.touches ? evt.touches[0] : evt,
                        ghostMatrix = ghostEl && matrix(ghostEl, true),
                        scaleX = ghostEl && ghostMatrix && ghostMatrix.a,
                        scaleY = ghostEl && ghostMatrix && ghostMatrix.d,
                        relativeScrollOffset = PositionGhostAbsolutely && ghostRelativeParent && getRelativeScrollOffset(ghostRelativeParent),
                        dx = (touch.clientX - tapEvt.clientX + fallbackOffset.x) / (scaleX || 1) + (relativeScrollOffset ? relativeScrollOffset[0] - ghostRelativeParentInitialScroll[0] : 0) / (scaleX || 1),
                        dy = (touch.clientY - tapEvt.clientY + fallbackOffset.y) / (scaleY || 1) + (relativeScrollOffset ? relativeScrollOffset[1] - ghostRelativeParentInitialScroll[1] : 0) / (scaleY || 1); // only set the status to dragging, when we are actually dragging

                    if (!Sortable.active && !awaitingDragStarted) {
                        if (fallbackTolerance && Math.max(Math.abs(touch.clientX - this._lastX), Math.abs(touch.clientY - this._lastY)) < fallbackTolerance) {
                            return;
                        }

                        this._onDragStart(evt, true);
                    }

                    if (ghostEl) {
                        if (ghostMatrix) {
                            ghostMatrix.e += dx - (lastDx || 0);
                            ghostMatrix.f += dy - (lastDy || 0);
                        } else {
                            ghostMatrix = {
                                a: 1,
                                b: 0,
                                c: 0,
                                d: 1,
                                e: dx,
                                f: dy
                            };
                        }

                        var cssMatrix = "matrix(".concat(ghostMatrix.a, ",").concat(ghostMatrix.b, ",").concat(ghostMatrix.c, ",").concat(ghostMatrix.d, ",").concat(ghostMatrix.e, ",").concat(ghostMatrix.f, ")");
                        css(ghostEl, 'webkitTransform', cssMatrix);
                        css(ghostEl, 'mozTransform', cssMatrix);
                        css(ghostEl, 'msTransform', cssMatrix);
                        css(ghostEl, 'transform', cssMatrix);
                        lastDx = dx;
                        lastDy = dy;
                        touchEvt = touch;
                    }

                    evt.cancelable && evt.preventDefault();
                }
            },
            _appendGhost: function _appendGhost() {
                // Bug if using scale(): https://stackoverflow.com/questions/2637058
                // Not being adjusted for
                if (!ghostEl) {
                    var container = this.options.fallbackOnBody ? document.body : rootEl,
                        rect = getRect(dragEl, true, PositionGhostAbsolutely, true, container),
                        options = this.options; // Position absolutely

                    if (PositionGhostAbsolutely) {
                        // Get relatively positioned parent
                        ghostRelativeParent = container;

                        while (css(ghostRelativeParent, 'position') === 'static' && css(ghostRelativeParent, 'transform') === 'none' && ghostRelativeParent !== document) {
                            ghostRelativeParent = ghostRelativeParent.parentNode;
                        }

                        if (ghostRelativeParent !== document.body && ghostRelativeParent !== document.documentElement) {
                            if (ghostRelativeParent === document) ghostRelativeParent = getWindowScrollingElement();
                            rect.top += ghostRelativeParent.scrollTop;
                            rect.left += ghostRelativeParent.scrollLeft;
                        } else {
                            ghostRelativeParent = getWindowScrollingElement();
                        }

                        ghostRelativeParentInitialScroll = getRelativeScrollOffset(ghostRelativeParent);
                    }

                    ghostEl = dragEl.cloneNode(true);
                    toggleClass(ghostEl, options.ghostClass, false);
                    toggleClass(ghostEl, options.fallbackClass, true);
                    toggleClass(ghostEl, options.dragClass, true);
                    css(ghostEl, 'transition', '');
                    css(ghostEl, 'transform', '');
                    css(ghostEl, 'box-sizing', 'border-box');
                    css(ghostEl, 'margin', 0);
                    css(ghostEl, 'top', rect.top);
                    css(ghostEl, 'left', rect.left);
                    css(ghostEl, 'width', rect.width);
                    css(ghostEl, 'height', rect.height);
                    css(ghostEl, 'opacity', '0.8');
                    css(ghostEl, 'position', PositionGhostAbsolutely ? 'absolute' : 'fixed');
                    css(ghostEl, 'zIndex', '100000');
                    css(ghostEl, 'pointerEvents', 'none');
                    Sortable.ghost = ghostEl;
                    container.appendChild(ghostEl); // Set transform-origin

                    css(ghostEl, 'transform-origin', tapDistanceLeft / parseInt(ghostEl.style.width) * 100 + '% ' + tapDistanceTop / parseInt(ghostEl.style.height) * 100 + '%');
                }
            },
            _onDragStart: function _onDragStart(
                /**Event*/
                evt,
                /**boolean*/
                fallback) {
                var _this = this;

                var dataTransfer = evt.dataTransfer;
                var options = _this.options;
                pluginEvent('dragStart', this, {
                    evt: evt
                });

                if (Sortable.eventCanceled) {
                    this._onDrop();

                    return;
                }

                pluginEvent('setupClone', this);

                if (!Sortable.eventCanceled) {
                    cloneEl = clone(dragEl);
                    cloneEl.removeAttribute("id");
                    cloneEl.draggable = false;
                    cloneEl.style['will-change'] = '';

                    this._hideClone();

                    toggleClass(cloneEl, this.options.chosenClass, false);
                    Sortable.clone = cloneEl;
                } // #1143: IFrame support workaround


                _this.cloneId = _nextTick(function () {
                    pluginEvent('clone', _this);
                    if (Sortable.eventCanceled) return;

                    if (!_this.options.removeCloneOnHide) {
                        rootEl.insertBefore(cloneEl, dragEl);
                    }

                    _this._hideClone();

                    _dispatchEvent({
                        sortable: _this,
                        name: 'clone'
                    });
                });
                !fallback && toggleClass(dragEl, options.dragClass, true); // Set proper drop events

                if (fallback) {
                    ignoreNextClick = true;
                    _this._loopId = setInterval(_this._emulateDragOver, 50);
                } else {
                    // Undo what was set in _prepareDragStart before drag started
                    off(document, 'mouseup', _this._onDrop);
                    off(document, 'touchend', _this._onDrop);
                    off(document, 'touchcancel', _this._onDrop);

                    if (dataTransfer) {
                        dataTransfer.effectAllowed = 'move';
                        options.setData && options.setData.call(_this, dataTransfer, dragEl);
                    }

                    on(document, 'drop', _this); // #1276 fix:

                    css(dragEl, 'transform', 'translateZ(0)');
                }

                awaitingDragStarted = true;
                _this._dragStartId = _nextTick(_this._dragStarted.bind(_this, fallback, evt));
                on(document, 'selectstart', _this);
                moved = true;

                if (Safari) {
                    css(document.body, 'user-select', 'none');
                }
            },
            // Returns true - if no further action is needed (either inserted or another condition)
            _onDragOver: function _onDragOver(
                /**Event*/
                evt) {
                var el = this.el,
                    target = evt.target,
                    dragRect,
                    targetRect,
                    revert,
                    options = this.options,
                    group = options.group,
                    activeSortable = Sortable.active,
                    isOwner = activeGroup === group,
                    canSort = options.sort,
                    fromSortable = putSortable || activeSortable,
                    vertical,
                    _this = this,
                    completedFired = false;

                if (_silent) return;

                function dragOverEvent(name, extra) {
                    pluginEvent(name, _this, _objectSpread2({
                        evt: evt,
                        isOwner: isOwner,
                        axis: vertical ? 'vertical' : 'horizontal',
                        revert: revert,
                        dragRect: dragRect,
                        targetRect: targetRect,
                        canSort: canSort,
                        fromSortable: fromSortable,
                        target: target,
                        completed: completed,
                        onMove: function onMove(target, after) {
                            return _onMove(rootEl, el, dragEl, dragRect, target, getRect(target), evt, after);
                        },
                        changed: changed
                    }, extra));
                } // Capture animation state


                function capture() {
                    dragOverEvent('dragOverAnimationCapture');

                    _this.captureAnimationState();

                    if (_this !== fromSortable) {
                        fromSortable.captureAnimationState();
                    }
                } // Return invocation when dragEl is inserted (or completed)


                function completed(insertion) {
                    dragOverEvent('dragOverCompleted', {
                        insertion: insertion
                    });

                    if (insertion) {
                        // Clones must be hidden before folding animation to capture dragRectAbsolute properly
                        if (isOwner) {
                            activeSortable._hideClone();
                        } else {
                            activeSortable._showClone(_this);
                        }

                        if (_this !== fromSortable) {
                            // Set ghost class to new sortable's ghost class
                            toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : activeSortable.options.ghostClass, false);
                            toggleClass(dragEl, options.ghostClass, true);
                        }

                        if (putSortable !== _this && _this !== Sortable.active) {
                            putSortable = _this;
                        } else if (_this === Sortable.active && putSortable) {
                            putSortable = null;
                        } // Animation


                        if (fromSortable === _this) {
                            _this._ignoreWhileAnimating = target;
                        }

                        _this.animateAll(function () {
                            dragOverEvent('dragOverAnimationComplete');
                            _this._ignoreWhileAnimating = null;
                        });

                        if (_this !== fromSortable) {
                            fromSortable.animateAll();
                            fromSortable._ignoreWhileAnimating = null;
                        }
                    } // Null lastTarget if it is not inside a previously swapped element


                    if (target === dragEl && !dragEl.animated || target === el && !target.animated) {
                        lastTarget = null;
                    } // no bubbling and not fallback


                    if (!options.dragoverBubble && !evt.rootEl && target !== document) {
                        dragEl.parentNode[expando]._isOutsideThisEl(evt.target); // Do not detect for empty insert if already inserted


                        !insertion && nearestEmptyInsertDetectEvent(evt);
                    }

                    !options.dragoverBubble && evt.stopPropagation && evt.stopPropagation();
                    return completedFired = true;
                } // Call when dragEl has been inserted


                function changed() {
                    newIndex = index(dragEl);
                    newDraggableIndex = index(dragEl, options.draggable);

                    _dispatchEvent({
                        sortable: _this,
                        name: 'change',
                        toEl: el,
                        newIndex: newIndex,
                        newDraggableIndex: newDraggableIndex,
                        originalEvent: evt
                    });
                }

                if (evt.preventDefault !== void 0) {
                    evt.cancelable && evt.preventDefault();
                }

                target = closest(target, options.draggable, el, true);
                dragOverEvent('dragOver');
                if (Sortable.eventCanceled) return completedFired;

                if (dragEl.contains(evt.target) || target.animated && target.animatingX && target.animatingY || _this._ignoreWhileAnimating === target) {
                    return completed(false);
                }

                ignoreNextClick = false;

                if (activeSortable && !options.disabled && (isOwner ? canSort || (revert = parentEl !== rootEl) // Reverting item into the original list
                    : putSortable === this || (this.lastPutMode = activeGroup.checkPull(this, activeSortable, dragEl, evt)) && group.checkPut(this, activeSortable, dragEl, evt))) {
                    vertical = this._getDirection(evt, target) === 'vertical';
                    dragRect = getRect(dragEl);
                    dragOverEvent('dragOverValid');
                    if (Sortable.eventCanceled) return completedFired;

                    if (revert) {
                        parentEl = rootEl; // actualization

                        capture();

                        this._hideClone();

                        dragOverEvent('revert');

                        if (!Sortable.eventCanceled) {
                            if (nextEl) {
                                rootEl.insertBefore(dragEl, nextEl);
                            } else {
                                rootEl.appendChild(dragEl);
                            }
                        }

                        return completed(true);
                    }

                    var elLastChild = lastChild(el, options.draggable);

                    if (!elLastChild || _ghostIsLast(evt, vertical, this) && !elLastChild.animated) {
                        // Insert to end of list
                        // If already at end of list: Do not insert
                        if (elLastChild === dragEl) {
                            return completed(false);
                        } // if there is a last element, it is the target


                        if (elLastChild && el === evt.target) {
                            target = elLastChild;
                        }

                        if (target) {
                            targetRect = getRect(target);
                        }

                        if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, !!target) !== false) {
                            capture();

                            if (elLastChild && elLastChild.nextSibling) {
                                // the last draggable element is not the last node
                                el.insertBefore(dragEl, elLastChild.nextSibling);
                            } else {
                                el.appendChild(dragEl);
                            }

                            parentEl = el; // actualization

                            changed();
                            return completed(true);
                        }
                    } else if (elLastChild && _ghostIsFirst(evt, vertical, this)) {
                        // Insert to start of list
                        var firstChild = getChild(el, 0, options, true);

                        if (firstChild === dragEl) {
                            return completed(false);
                        }

                        target = firstChild;
                        targetRect = getRect(target);

                        if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, false) !== false) {
                            capture();
                            el.insertBefore(dragEl, firstChild);
                            parentEl = el; // actualization

                            changed();
                            return completed(true);
                        }
                    } else if (target.parentNode === el) {
                        targetRect = getRect(target);
                        var direction = 0,
                            targetBeforeFirstSwap,
                            differentLevel = dragEl.parentNode !== el,
                            differentRowCol = !_dragElInRowColumn(dragEl.animated && dragEl.toRect || dragRect, target.animated && target.toRect || targetRect, vertical),
                            side1 = vertical ? 'top' : 'left',
                            scrolledPastTop = isScrolledPast(target, 'top', 'top') || isScrolledPast(dragEl, 'top', 'top'),
                            scrollBefore = scrolledPastTop ? scrolledPastTop.scrollTop : void 0;

                        if (lastTarget !== target) {
                            targetBeforeFirstSwap = targetRect[side1];
                            pastFirstInvertThresh = false;
                            isCircumstantialInvert = !differentRowCol && options.invertSwap || differentLevel;
                        }

                        direction = _getSwapDirection(evt, target, targetRect, vertical, differentRowCol ? 1 : options.swapThreshold, options.invertedSwapThreshold == null ? options.swapThreshold : options.invertedSwapThreshold, isCircumstantialInvert, lastTarget === target);
                        var sibling;

                        if (direction !== 0) {
                            // Check if target is beside dragEl in respective direction (ignoring hidden elements)
                            var dragIndex = index(dragEl);

                            do {
                                dragIndex -= direction;
                                sibling = parentEl.children[dragIndex];
                            } while (sibling && (css(sibling, 'display') === 'none' || sibling === ghostEl));
                        } // If dragEl is already beside target: Do not insert


                        if (direction === 0 || sibling === target) {
                            return completed(false);
                        }

                        lastTarget = target;
                        lastDirection = direction;
                        var nextSibling = target.nextElementSibling,
                            after = false;
                        after = direction === 1;

                        var moveVector = _onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, after);

                        if (moveVector !== false) {
                            if (moveVector === 1 || moveVector === -1) {
                                after = moveVector === 1;
                            }

                            _silent = true;
                            setTimeout(_unsilent, 30);
                            capture();

                            if (after && !nextSibling) {
                                el.appendChild(dragEl);
                            } else {
                                target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
                            } // Undo chrome's scroll adjustment (has no effect on other browsers)


                            if (scrolledPastTop) {
                                scrollBy(scrolledPastTop, 0, scrollBefore - scrolledPastTop.scrollTop);
                            }

                            parentEl = dragEl.parentNode; // actualization
                            // must be done before animation

                            if (targetBeforeFirstSwap !== undefined && !isCircumstantialInvert) {
                                targetMoveDistance = Math.abs(targetBeforeFirstSwap - getRect(target)[side1]);
                            }

                            changed();
                            return completed(true);
                        }
                    }

                    if (el.contains(dragEl)) {
                        return completed(false);
                    }
                }

                return false;
            },
            _ignoreWhileAnimating: null,
            _offMoveEvents: function _offMoveEvents() {
                off(document, 'mousemove', this._onTouchMove);
                off(document, 'touchmove', this._onTouchMove);
                off(document, 'pointermove', this._onTouchMove);
                off(document, 'dragover', nearestEmptyInsertDetectEvent);
                off(document, 'mousemove', nearestEmptyInsertDetectEvent);
                off(document, 'touchmove', nearestEmptyInsertDetectEvent);
            },
            _offUpEvents: function _offUpEvents() {
                var ownerDocument = this.el.ownerDocument;
                off(ownerDocument, 'mouseup', this._onDrop);
                off(ownerDocument, 'touchend', this._onDrop);
                off(ownerDocument, 'pointerup', this._onDrop);
                off(ownerDocument, 'touchcancel', this._onDrop);
                off(document, 'selectstart', this);
            },
            _onDrop: function _onDrop(
                /**Event*/
                evt) {
                var el = this.el,
                    options = this.options; // Get the index of the dragged element within its parent

                newIndex = index(dragEl);
                newDraggableIndex = index(dragEl, options.draggable);
                pluginEvent('drop', this, {
                    evt: evt
                });
                parentEl = dragEl && dragEl.parentNode; // Get again after plugin event

                newIndex = index(dragEl);
                newDraggableIndex = index(dragEl, options.draggable);

                if (Sortable.eventCanceled) {
                    this._nulling();

                    return;
                }

                awaitingDragStarted = false;
                isCircumstantialInvert = false;
                pastFirstInvertThresh = false;
                clearInterval(this._loopId);
                clearTimeout(this._dragStartTimer);

                _cancelNextTick(this.cloneId);

                _cancelNextTick(this._dragStartId); // Unbind events


                if (this.nativeDraggable) {
                    off(document, 'drop', this);
                    off(el, 'dragstart', this._onDragStart);
                }

                this._offMoveEvents();

                this._offUpEvents();

                if (Safari) {
                    css(document.body, 'user-select', '');
                }

                css(dragEl, 'transform', '');

                if (evt) {
                    if (moved) {
                        evt.cancelable && evt.preventDefault();
                        !options.dropBubble && evt.stopPropagation();
                    }

                    ghostEl && ghostEl.parentNode && ghostEl.parentNode.removeChild(ghostEl);

                    if (rootEl === parentEl || putSortable && putSortable.lastPutMode !== 'clone') {
                        // Remove clone(s)
                        cloneEl && cloneEl.parentNode && cloneEl.parentNode.removeChild(cloneEl);
                    }

                    if (dragEl) {
                        if (this.nativeDraggable) {
                            off(dragEl, 'dragend', this);
                        }

                        _disableDraggable(dragEl);

                        dragEl.style['will-change'] = ''; // Remove classes
                        // ghostClass is added in dragStarted

                        if (moved && !awaitingDragStarted) {
                            toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : this.options.ghostClass, false);
                        }

                        toggleClass(dragEl, this.options.chosenClass, false); // Drag stop event

                        _dispatchEvent({
                            sortable: this,
                            name: 'unchoose',
                            toEl: parentEl,
                            newIndex: null,
                            newDraggableIndex: null,
                            originalEvent: evt
                        });

                        if (rootEl !== parentEl) {
                            if (newIndex >= 0) {
                                // Add event
                                _dispatchEvent({
                                    rootEl: parentEl,
                                    name: 'add',
                                    toEl: parentEl,
                                    fromEl: rootEl,
                                    originalEvent: evt
                                }); // Remove event


                                _dispatchEvent({
                                    sortable: this,
                                    name: 'remove',
                                    toEl: parentEl,
                                    originalEvent: evt
                                }); // drag from one list and drop into another


                                _dispatchEvent({
                                    rootEl: parentEl,
                                    name: 'sort',
                                    toEl: parentEl,
                                    fromEl: rootEl,
                                    originalEvent: evt
                                });

                                _dispatchEvent({
                                    sortable: this,
                                    name: 'sort',
                                    toEl: parentEl,
                                    originalEvent: evt
                                });
                            }

                            putSortable && putSortable.save();
                        } else {
                            if (newIndex !== oldIndex) {
                                if (newIndex >= 0) {
                                    // drag & drop within the same list
                                    _dispatchEvent({
                                        sortable: this,
                                        name: 'update',
                                        toEl: parentEl,
                                        originalEvent: evt
                                    });

                                    _dispatchEvent({
                                        sortable: this,
                                        name: 'sort',
                                        toEl: parentEl,
                                        originalEvent: evt
                                    });
                                }
                            }
                        }

                        if (Sortable.active) {
                            /* jshint eqnull:true */
                            if (newIndex == null || newIndex === -1) {
                                newIndex = oldIndex;
                                newDraggableIndex = oldDraggableIndex;
                            }

                            _dispatchEvent({
                                sortable: this,
                                name: 'end',
                                toEl: parentEl,
                                originalEvent: evt
                            }); // Save sorting


                            this.save();
                        }
                    }
                }

                this._nulling();
            },
            _nulling: function _nulling() {
                pluginEvent('nulling', this);
                rootEl = dragEl = parentEl = ghostEl = nextEl = cloneEl = lastDownEl = cloneHidden = tapEvt = touchEvt = moved = newIndex = newDraggableIndex = oldIndex = oldDraggableIndex = lastTarget = lastDirection = putSortable = activeGroup = Sortable.dragged = Sortable.ghost = Sortable.clone = Sortable.active = null;
                savedInputChecked.forEach(function (el) {
                    el.checked = true;
                });
                savedInputChecked.length = lastDx = lastDy = 0;
            },
            handleEvent: function handleEvent(
                /**Event*/
                evt) {
                switch (evt.type) {
                    case 'drop':
                    case 'dragend':
                        this._onDrop(evt);

                        break;

                    case 'dragenter':
                    case 'dragover':
                        if (dragEl) {
                            this._onDragOver(evt);

                            _globalDragOver(evt);
                        }

                        break;

                    case 'selectstart':
                        evt.preventDefault();
                        break;
                }
            },

            /**
             * Serializes the item into an array of string.
             * @returns {String[]}
             */
            toArray: function toArray() {
                var order = [],
                    el,
                    children = this.el.children,
                    i = 0,
                    n = children.length,
                    options = this.options;

                for (; i < n; i++) {
                    el = children[i];

                    if (closest(el, options.draggable, this.el, false)) {
                        order.push(el.getAttribute(options.dataIdAttr) || _generateId(el));
                    }
                }

                return order;
            },

            /**
             * Sorts the elements according to the array.
             * @param  {String[]}  order  order of the items
             */
            sort: function sort(order, useAnimation) {
                var items = {},
                    rootEl = this.el;
                this.toArray().forEach(function (id, i) {
                    var el = rootEl.children[i];

                    if (closest(el, this.options.draggable, rootEl, false)) {
                        items[id] = el;
                    }
                }, this);
                useAnimation && this.captureAnimationState();
                order.forEach(function (id) {
                    if (items[id]) {
                        rootEl.removeChild(items[id]);
                        rootEl.appendChild(items[id]);
                    }
                });
                useAnimation && this.animateAll();
            },

            /**
             * Save the current sorting
             */
            save: function save() {
                var store = this.options.store;
                store && store.set && store.set(this);
            },

            /**
             * For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
             * @param   {HTMLElement}  el
             * @param   {String}       [selector]  default: `options.draggable`
             * @returns {HTMLElement|null}
             */
            closest: function closest$1(el, selector) {
                return closest(el, selector || this.options.draggable, this.el, false);
            },

            /**
             * Set/get option
             * @param   {string} name
             * @param   {*}      [value]
             * @returns {*}
             */
            option: function option(name, value) {
                var options = this.options;

                if (value === void 0) {
                    return options[name];
                } else {
                    var modifiedValue = PluginManager.modifyOption(this, name, value);

                    if (typeof modifiedValue !== 'undefined') {
                        options[name] = modifiedValue;
                    } else {
                        options[name] = value;
                    }

                    if (name === 'group') {
                        _prepareGroup(options);
                    }
                }
            },

            /**
             * Destroy
             */
            destroy: function destroy() {
                pluginEvent('destroy', this);
                var el = this.el;
                el[expando] = null;
                off(el, 'mousedown', this._onTapStart);
                off(el, 'touchstart', this._onTapStart);
                off(el, 'pointerdown', this._onTapStart);

                if (this.nativeDraggable) {
                    off(el, 'dragover', this);
                    off(el, 'dragenter', this);
                } // Remove draggable attributes


                Array.prototype.forEach.call(el.querySelectorAll('[draggable]'), function (el) {
                    el.removeAttribute('draggable');
                });

                this._onDrop();

                this._disableDelayedDragEvents();

                sortables.splice(sortables.indexOf(this.el), 1);
                this.el = el = null;
            },
            _hideClone: function _hideClone() {
                if (!cloneHidden) {
                    pluginEvent('hideClone', this);
                    if (Sortable.eventCanceled) return;
                    css(cloneEl, 'display', 'none');

                    if (this.options.removeCloneOnHide && cloneEl.parentNode) {
                        cloneEl.parentNode.removeChild(cloneEl);
                    }

                    cloneHidden = true;
                }
            },
            _showClone: function _showClone(putSortable) {
                if (putSortable.lastPutMode !== 'clone') {
                    this._hideClone();

                    return;
                }

                if (cloneHidden) {
                    pluginEvent('showClone', this);
                    if (Sortable.eventCanceled) return; // show clone at dragEl or original position

                    if (dragEl.parentNode == rootEl && !this.options.group.revertClone) {
                        rootEl.insertBefore(cloneEl, dragEl);
                    } else if (nextEl) {
                        rootEl.insertBefore(cloneEl, nextEl);
                    } else {
                        rootEl.appendChild(cloneEl);
                    }

                    if (this.options.group.revertClone) {
                        this.animate(dragEl, cloneEl);
                    }

                    css(cloneEl, 'display', '');
                    cloneHidden = false;
                }
            }
        };

    function _globalDragOver(
        /**Event*/
        evt) {
        if (evt.dataTransfer) {
            evt.dataTransfer.dropEffect = 'move';
        }

        evt.cancelable && evt.preventDefault();
    }

    function _onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect, originalEvent, willInsertAfter) {
        var evt,
            sortable = fromEl[expando],
            onMoveFn = sortable.options.onMove,
            retVal; // Support for new CustomEvent feature

        if (window.CustomEvent && !IE11OrLess && !Edge) {
            evt = new CustomEvent('move', {
                bubbles: true,
                cancelable: true
            });
        } else {
            evt = document.createEvent('Event');
            evt.initEvent('move', true, true);
        }

        evt.to = toEl;
        evt.from = fromEl;
        evt.dragged = dragEl;
        evt.draggedRect = dragRect;
        evt.related = targetEl || toEl;
        evt.relatedRect = targetRect || getRect(toEl);
        evt.willInsertAfter = willInsertAfter;
        evt.originalEvent = originalEvent;
        fromEl.dispatchEvent(evt);

        if (onMoveFn) {
            retVal = onMoveFn.call(sortable, evt, originalEvent);
        }

        return retVal;
    }

    function _disableDraggable(el) {
        el.draggable = false;
    }

    function _unsilent() {
        _silent = false;
    }

    function _ghostIsFirst(evt, vertical, sortable) {
        var rect = getRect(getChild(sortable.el, 0, sortable.options, true));
        var spacer = 10;
        return vertical ? evt.clientX < rect.left - spacer || evt.clientY < rect.top && evt.clientX < rect.right : evt.clientY < rect.top - spacer || evt.clientY < rect.bottom && evt.clientX < rect.left;
    }

    function _ghostIsLast(evt, vertical, sortable) {
        var rect = getRect(lastChild(sortable.el, sortable.options.draggable));
        var spacer = 10;
        return vertical ? evt.clientX > rect.right + spacer || evt.clientX <= rect.right && evt.clientY > rect.bottom && evt.clientX >= rect.left : evt.clientX > rect.right && evt.clientY > rect.top || evt.clientX <= rect.right && evt.clientY > rect.bottom + spacer;
    }

    function _getSwapDirection(evt, target, targetRect, vertical, swapThreshold, invertedSwapThreshold, invertSwap, isLastTarget) {
        var mouseOnAxis = vertical ? evt.clientY : evt.clientX,
            targetLength = vertical ? targetRect.height : targetRect.width,
            targetS1 = vertical ? targetRect.top : targetRect.left,
            targetS2 = vertical ? targetRect.bottom : targetRect.right,
            invert = false;

        if (!invertSwap) {
            // Never invert or create dragEl shadow when target movemenet causes mouse to move past the end of regular swapThreshold
            if (isLastTarget && targetMoveDistance < targetLength * swapThreshold) {
                // multiplied only by swapThreshold because mouse will already be inside target by (1 - threshold) * targetLength / 2
                // check if past first invert threshold on side opposite of lastDirection
                if (!pastFirstInvertThresh && (lastDirection === 1 ? mouseOnAxis > targetS1 + targetLength * invertedSwapThreshold / 2 : mouseOnAxis < targetS2 - targetLength * invertedSwapThreshold / 2)) {
                    // past first invert threshold, do not restrict inverted threshold to dragEl shadow
                    pastFirstInvertThresh = true;
                }

                if (!pastFirstInvertThresh) {
                    // dragEl shadow (target move distance shadow)
                    if (lastDirection === 1 ? mouseOnAxis < targetS1 + targetMoveDistance // over dragEl shadow
                        : mouseOnAxis > targetS2 - targetMoveDistance) {
                        return -lastDirection;
                    }
                } else {
                    invert = true;
                }
            } else {
                // Regular
                if (mouseOnAxis > targetS1 + targetLength * (1 - swapThreshold) / 2 && mouseOnAxis < targetS2 - targetLength * (1 - swapThreshold) / 2) {
                    return _getInsertDirection(target);
                }
            }
        }

        invert = invert || invertSwap;

        if (invert) {
            // Invert of regular
            if (mouseOnAxis < targetS1 + targetLength * invertedSwapThreshold / 2 || mouseOnAxis > targetS2 - targetLength * invertedSwapThreshold / 2) {
                return mouseOnAxis > targetS1 + targetLength / 2 ? 1 : -1;
            }
        }

        return 0;
    }
    /**
     * Gets the direction dragEl must be swapped relative to target in order to make it
     * seem that dragEl has been "inserted" into that element's position
     * @param  {HTMLElement} target       The target whose position dragEl is being inserted at
     * @return {Number}                   Direction dragEl must be swapped
     */


    function _getInsertDirection(target) {
        if (index(dragEl) < index(target)) {
            return 1;
        } else {
            return -1;
        }
    }
    /**
     * Generate id
     * @param   {HTMLElement} el
     * @returns {String}
     * @private
     */


    function _generateId(el) {
        var str = el.tagName + el.className + el.src + el.href + el.textContent,
            i = str.length,
            sum = 0;

        while (i--) {
            sum += str.charCodeAt(i);
        }

        return sum.toString(36);
    }

    function _saveInputCheckedState(root) {
        savedInputChecked.length = 0;
        var inputs = root.getElementsByTagName('input');
        var idx = inputs.length;

        while (idx--) {
            var el = inputs[idx];
            el.checked && savedInputChecked.push(el);
        }
    }

    function _nextTick(fn) {
        return setTimeout(fn, 0);
    }

    function _cancelNextTick(id) {
        return clearTimeout(id);
    } // Fixed #973:


    if (documentExists) {
        on(document, 'touchmove', function (evt) {
            if ((Sortable.active || awaitingDragStarted) && evt.cancelable) {
                evt.preventDefault();
            }
        });
    } // Export utils


    Sortable.utils = {
        on: on,
        off: off,
        css: css,
        find: find,
        is: function is(el, selector) {
            return !!closest(el, selector, el, false);
        },
        extend: extend,
        throttle: throttle,
        closest: closest,
        toggleClass: toggleClass,
        clone: clone,
        index: index,
        nextTick: _nextTick,
        cancelNextTick: _cancelNextTick,
        detectDirection: _detectDirection,
        getChild: getChild
    };
    /**
     * Get the Sortable instance of an element
     * @param  {HTMLElement} element The element
     * @return {Sortable|undefined}         The instance of Sortable
     */

    Sortable.get = function (element) {
        return element[expando];
    };
    /**
     * Mount a plugin to Sortable
     * @param  {...SortablePlugin|SortablePlugin[]} plugins       Plugins being mounted
     */


    Sortable.mount = function () {
        for (var _len = arguments.length, plugins = new Array(_len), _key = 0; _key < _len; _key++) {
            plugins[_key] = arguments[_key];
        }

        if (plugins[0].constructor === Array) plugins = plugins[0];
        plugins.forEach(function (plugin) {
            if (!plugin.prototype || !plugin.prototype.constructor) {
                throw "Sortable: Mounted plugin must be a constructor function, not ".concat({}.toString.call(plugin));
            }

            if (plugin.utils) Sortable.utils = _objectSpread2(_objectSpread2({}, Sortable.utils), plugin.utils);
            PluginManager.mount(plugin);
        });
    };
    /**
     * Create sortable instance
     * @param {HTMLElement}  el
     * @param {Object}      [options]
     */


    Sortable.create = function (el, options) {
        return new Sortable(el, options);
    }; // Export


    Sortable.version = version;

    var autoScrolls = [],
        scrollEl,
        scrollRootEl,
        scrolling = false,
        lastAutoScrollX,
        lastAutoScrollY,
        touchEvt$1,
        pointerElemChangedInterval;

    function AutoScrollPlugin() {
        function AutoScroll() {
            this.defaults = {
                scroll: true,
                forceAutoScrollFallback: false,
                scrollSensitivity: 30,
                scrollSpeed: 10,
                bubbleScroll: true
            }; // Bind all private methods

            for (var fn in this) {
                if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
                    this[fn] = this[fn].bind(this);
                }
            }
        }

        AutoScroll.prototype = {
            dragStarted: function dragStarted(_ref) {
                var originalEvent = _ref.originalEvent;

                if (this.sortable.nativeDraggable) {
                    on(document, 'dragover', this._handleAutoScroll);
                } else {
                    if (this.options.supportPointer) {
                        on(document, 'pointermove', this._handleFallbackAutoScroll);
                    } else if (originalEvent.touches) {
                        on(document, 'touchmove', this._handleFallbackAutoScroll);
                    } else {
                        on(document, 'mousemove', this._handleFallbackAutoScroll);
                    }
                }
            },
            dragOverCompleted: function dragOverCompleted(_ref2) {
                var originalEvent = _ref2.originalEvent;

                // For when bubbling is canceled and using fallback (fallback 'touchmove' always reached)
                if (!this.options.dragOverBubble && !originalEvent.rootEl) {
                    this._handleAutoScroll(originalEvent);
                }
            },
            drop: function drop() {
                if (this.sortable.nativeDraggable) {
                    off(document, 'dragover', this._handleAutoScroll);
                } else {
                    off(document, 'pointermove', this._handleFallbackAutoScroll);
                    off(document, 'touchmove', this._handleFallbackAutoScroll);
                    off(document, 'mousemove', this._handleFallbackAutoScroll);
                }

                clearPointerElemChangedInterval();
                clearAutoScrolls();
                cancelThrottle();
            },
            nulling: function nulling() {
                touchEvt$1 = scrollRootEl = scrollEl = scrolling = pointerElemChangedInterval = lastAutoScrollX = lastAutoScrollY = null;
                autoScrolls.length = 0;
            },
            _handleFallbackAutoScroll: function _handleFallbackAutoScroll(evt) {
                this._handleAutoScroll(evt, true);
            },
            _handleAutoScroll: function _handleAutoScroll(evt, fallback) {
                var _this = this;

                var x = (evt.touches ? evt.touches[0] : evt).clientX,
                    y = (evt.touches ? evt.touches[0] : evt).clientY,
                    elem = document.elementFromPoint(x, y);
                touchEvt$1 = evt; // IE does not seem to have native autoscroll,
                // Edge's autoscroll seems too conditional,
                // MACOS Safari does not have autoscroll,
                // Firefox and Chrome are good

                if (fallback || this.options.forceAutoScrollFallback || Edge || IE11OrLess || Safari) {
                    autoScroll(evt, this.options, elem, fallback); // Listener for pointer element change

                    var ogElemScroller = getParentAutoScrollElement(elem, true);

                    if (scrolling && (!pointerElemChangedInterval || x !== lastAutoScrollX || y !== lastAutoScrollY)) {
                        pointerElemChangedInterval && clearPointerElemChangedInterval(); // Detect for pointer elem change, emulating native DnD behaviour

                        pointerElemChangedInterval = setInterval(function () {
                            var newElem = getParentAutoScrollElement(document.elementFromPoint(x, y), true);

                            if (newElem !== ogElemScroller) {
                                ogElemScroller = newElem;
                                clearAutoScrolls();
                            }

                            autoScroll(evt, _this.options, newElem, fallback);
                        }, 10);
                        lastAutoScrollX = x;
                        lastAutoScrollY = y;
                    }
                } else {
                    // if DnD is enabled (and browser has good autoscrolling), first autoscroll will already scroll, so get parent autoscroll of first autoscroll
                    if (!this.options.bubbleScroll || getParentAutoScrollElement(elem, true) === getWindowScrollingElement()) {
                        clearAutoScrolls();
                        return;
                    }

                    autoScroll(evt, this.options, getParentAutoScrollElement(elem, false), false);
                }
            }
        };
        return _extends(AutoScroll, {
            pluginName: 'scroll',
            initializeByDefault: true
        });
    }

    function clearAutoScrolls() {
        autoScrolls.forEach(function (autoScroll) {
            clearInterval(autoScroll.pid);
        });
        autoScrolls = [];
    }

    function clearPointerElemChangedInterval() {
        clearInterval(pointerElemChangedInterval);
    }

    var autoScroll = throttle(function (evt, options, rootEl, isFallback) {
        // Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521
        if (!options.scroll) return;
        var x = (evt.touches ? evt.touches[0] : evt).clientX,
            y = (evt.touches ? evt.touches[0] : evt).clientY,
            sens = options.scrollSensitivity,
            speed = options.scrollSpeed,
            winScroller = getWindowScrollingElement();
        var scrollThisInstance = false,
            scrollCustomFn; // New scroll root, set scrollEl

        if (scrollRootEl !== rootEl) {
            scrollRootEl = rootEl;
            clearAutoScrolls();
            scrollEl = options.scroll;
            scrollCustomFn = options.scrollFn;

            if (scrollEl === true) {
                scrollEl = getParentAutoScrollElement(rootEl, true);
            }
        }

        var layersOut = 0;
        var currentParent = scrollEl;

        do {
            var el = currentParent,
                rect = getRect(el),
                top = rect.top,
                bottom = rect.bottom,
                left = rect.left,
                right = rect.right,
                width = rect.width,
                height = rect.height,
                canScrollX = void 0,
                canScrollY = void 0,
                scrollWidth = el.scrollWidth,
                scrollHeight = el.scrollHeight,
                elCSS = css(el),
                scrollPosX = el.scrollLeft,
                scrollPosY = el.scrollTop;

            if (el === winScroller) {
                canScrollX = width < scrollWidth && (elCSS.overflowX === 'auto' || elCSS.overflowX === 'scroll' || elCSS.overflowX === 'visible');
                canScrollY = height < scrollHeight && (elCSS.overflowY === 'auto' || elCSS.overflowY === 'scroll' || elCSS.overflowY === 'visible');
            } else {
                canScrollX = width < scrollWidth && (elCSS.overflowX === 'auto' || elCSS.overflowX === 'scroll');
                canScrollY = height < scrollHeight && (elCSS.overflowY === 'auto' || elCSS.overflowY === 'scroll');
            }

            var vx = canScrollX && (Math.abs(right - x) <= sens && scrollPosX + width < scrollWidth) - (Math.abs(left - x) <= sens && !!scrollPosX);
            var vy = canScrollY && (Math.abs(bottom - y) <= sens && scrollPosY + height < scrollHeight) - (Math.abs(top - y) <= sens && !!scrollPosY);

            if (!autoScrolls[layersOut]) {
                for (var i = 0; i <= layersOut; i++) {
                    if (!autoScrolls[i]) {
                        autoScrolls[i] = {};
                    }
                }
            }

            if (autoScrolls[layersOut].vx != vx || autoScrolls[layersOut].vy != vy || autoScrolls[layersOut].el !== el) {
                autoScrolls[layersOut].el = el;
                autoScrolls[layersOut].vx = vx;
                autoScrolls[layersOut].vy = vy;
                clearInterval(autoScrolls[layersOut].pid);

                if (vx != 0 || vy != 0) {
                    scrollThisInstance = true;
                    /* jshint loopfunc:true */

                    autoScrolls[layersOut].pid = setInterval(function () {
                        // emulate drag over during autoscroll (fallback), emulating native DnD behaviour
                        if (isFallback && this.layer === 0) {
                            Sortable.active._onTouchMove(touchEvt$1); // To move ghost if it is positioned absolutely

                        }

                        var scrollOffsetY = autoScrolls[this.layer].vy ? autoScrolls[this.layer].vy * speed : 0;
                        var scrollOffsetX = autoScrolls[this.layer].vx ? autoScrolls[this.layer].vx * speed : 0;

                        if (typeof scrollCustomFn === 'function') {
                            if (scrollCustomFn.call(Sortable.dragged.parentNode[expando], scrollOffsetX, scrollOffsetY, evt, touchEvt$1, autoScrolls[this.layer].el) !== 'continue') {
                                return;
                            }
                        }

                        scrollBy(autoScrolls[this.layer].el, scrollOffsetX, scrollOffsetY);
                    }.bind({
                        layer: layersOut
                    }), 24);
                }
            }

            layersOut++;
        } while (options.bubbleScroll && currentParent !== winScroller && (currentParent = getParentAutoScrollElement(currentParent, false)));

        scrolling = scrollThisInstance; // in case another function catches scrolling as false in between when it is not
    }, 30);

    var drop = function drop(_ref) {
        var originalEvent = _ref.originalEvent,
            putSortable = _ref.putSortable,
            dragEl = _ref.dragEl,
            activeSortable = _ref.activeSortable,
            dispatchSortableEvent = _ref.dispatchSortableEvent,
            hideGhostForTarget = _ref.hideGhostForTarget,
            unhideGhostForTarget = _ref.unhideGhostForTarget;
        if (!originalEvent) return;
        var toSortable = putSortable || activeSortable;
        hideGhostForTarget();
        var touch = originalEvent.changedTouches && originalEvent.changedTouches.length ? originalEvent.changedTouches[0] : originalEvent;
        var target = document.elementFromPoint(touch.clientX, touch.clientY);
        unhideGhostForTarget();

        if (toSortable && !toSortable.el.contains(target)) {
            dispatchSortableEvent('spill');
            this.onSpill({
                dragEl: dragEl,
                putSortable: putSortable
            });
        }
    };

    function Revert() {}

    Revert.prototype = {
        startIndex: null,
        dragStart: function dragStart(_ref2) {
            var oldDraggableIndex = _ref2.oldDraggableIndex;
            this.startIndex = oldDraggableIndex;
        },
        onSpill: function onSpill(_ref3) {
            var dragEl = _ref3.dragEl,
                putSortable = _ref3.putSortable;
            this.sortable.captureAnimationState();

            if (putSortable) {
                putSortable.captureAnimationState();
            }

            var nextSibling = getChild(this.sortable.el, this.startIndex, this.options);

            if (nextSibling) {
                this.sortable.el.insertBefore(dragEl, nextSibling);
            } else {
                this.sortable.el.appendChild(dragEl);
            }

            this.sortable.animateAll();

            if (putSortable) {
                putSortable.animateAll();
            }
        },
        drop: drop
    };

    _extends(Revert, {
        pluginName: 'revertOnSpill'
    });

    function Remove() {}

    Remove.prototype = {
        onSpill: function onSpill(_ref4) {
            var dragEl = _ref4.dragEl,
                putSortable = _ref4.putSortable;
            var parentSortable = putSortable || this.sortable;
            parentSortable.captureAnimationState();
            dragEl.parentNode && dragEl.parentNode.removeChild(dragEl);
            parentSortable.animateAll();
        },
        drop: drop
    };

    _extends(Remove, {
        pluginName: 'removeOnSpill'
    });

    var lastSwapEl;

    function SwapPlugin() {
        function Swap() {
            this.defaults = {
                swapClass: 'sortable-swap-highlight'
            };
        }

        Swap.prototype = {
            dragStart: function dragStart(_ref) {
                var dragEl = _ref.dragEl;
                lastSwapEl = dragEl;
            },
            dragOverValid: function dragOverValid(_ref2) {
                var completed = _ref2.completed,
                    target = _ref2.target,
                    onMove = _ref2.onMove,
                    activeSortable = _ref2.activeSortable,
                    changed = _ref2.changed,
                    cancel = _ref2.cancel;
                if (!activeSortable.options.swap) return;
                var el = this.sortable.el,
                    options = this.options;

                if (target && target !== el) {
                    var prevSwapEl = lastSwapEl;

                    if (onMove(target) !== false) {
                        toggleClass(target, options.swapClass, true);
                        lastSwapEl = target;
                    } else {
                        lastSwapEl = null;
                    }

                    if (prevSwapEl && prevSwapEl !== lastSwapEl) {
                        toggleClass(prevSwapEl, options.swapClass, false);
                    }
                }

                changed();
                completed(true);
                cancel();
            },
            drop: function drop(_ref3) {
                var activeSortable = _ref3.activeSortable,
                    putSortable = _ref3.putSortable,
                    dragEl = _ref3.dragEl;
                var toSortable = putSortable || this.sortable;
                var options = this.options;
                lastSwapEl && toggleClass(lastSwapEl, options.swapClass, false);

                if (lastSwapEl && (options.swap || putSortable && putSortable.options.swap)) {
                    if (dragEl !== lastSwapEl) {
                        toSortable.captureAnimationState();
                        if (toSortable !== activeSortable) activeSortable.captureAnimationState();
                        swapNodes(dragEl, lastSwapEl);
                        toSortable.animateAll();
                        if (toSortable !== activeSortable) activeSortable.animateAll();
                    }
                }
            },
            nulling: function nulling() {
                lastSwapEl = null;
            }
        };
        return _extends(Swap, {
            pluginName: 'swap',
            eventProperties: function eventProperties() {
                return {
                    swapItem: lastSwapEl
                };
            }
        });
    }

    function swapNodes(n1, n2) {
        var p1 = n1.parentNode,
            p2 = n2.parentNode,
            i1,
            i2;
        if (!p1 || !p2 || p1.isEqualNode(n2) || p2.isEqualNode(n1)) return;
        i1 = index(n1);
        i2 = index(n2);

        if (p1.isEqualNode(p2) && i1 < i2) {
            i2++;
        }

        p1.insertBefore(n2, p1.children[i1]);
        p2.insertBefore(n1, p2.children[i2]);
    }

    var multiDragElements = [],
        multiDragClones = [],
        lastMultiDragSelect,
        // for selection with modifier key down (SHIFT)
        multiDragSortable,
        initialFolding = false,
        // Initial multi-drag fold when drag started
        folding = false,
        // Folding any other time
        dragStarted = false,
        dragEl$1,
        clonesFromRect,
        clonesHidden;

    function MultiDragPlugin() {
        function MultiDrag(sortable) {
            // Bind all private methods
            for (var fn in this) {
                if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
                    this[fn] = this[fn].bind(this);
                }
            }

            if (!sortable.options.avoidImplicitDeselect) {
                if (sortable.options.supportPointer) {
                    on(document, 'pointerup', this._deselectMultiDrag);
                } else {
                    on(document, 'mouseup', this._deselectMultiDrag);
                    on(document, 'touchend', this._deselectMultiDrag);
                }
            }

            on(document, 'keydown', this._checkKeyDown);
            on(document, 'keyup', this._checkKeyUp);
            this.defaults = {
                selectedClass: 'sortable-selected',
                multiDragKey: null,
                avoidImplicitDeselect: false,
                setData: function setData(dataTransfer, dragEl) {
                    var data = '';

                    if (multiDragElements.length && multiDragSortable === sortable) {
                        multiDragElements.forEach(function (multiDragElement, i) {
                            data += (!i ? '' : ', ') + multiDragElement.textContent;
                        });
                    } else {
                        data = dragEl.textContent;
                    }

                    dataTransfer.setData('Text', data);
                }
            };
        }

        MultiDrag.prototype = {
            multiDragKeyDown: false,
            isMultiDrag: false,
            delayStartGlobal: function delayStartGlobal(_ref) {
                var dragged = _ref.dragEl;
                dragEl$1 = dragged;
            },
            delayEnded: function delayEnded() {
                this.isMultiDrag = ~multiDragElements.indexOf(dragEl$1);
            },
            setupClone: function setupClone(_ref2) {
                var sortable = _ref2.sortable,
                    cancel = _ref2.cancel;
                if (!this.isMultiDrag) return;

                for (var i = 0; i < multiDragElements.length; i++) {
                    multiDragClones.push(clone(multiDragElements[i]));
                    multiDragClones[i].sortableIndex = multiDragElements[i].sortableIndex;
                    multiDragClones[i].draggable = false;
                    multiDragClones[i].style['will-change'] = '';
                    toggleClass(multiDragClones[i], this.options.selectedClass, false);
                    multiDragElements[i] === dragEl$1 && toggleClass(multiDragClones[i], this.options.chosenClass, false);
                }

                sortable._hideClone();

                cancel();
            },
            clone: function clone(_ref3) {
                var sortable = _ref3.sortable,
                    rootEl = _ref3.rootEl,
                    dispatchSortableEvent = _ref3.dispatchSortableEvent,
                    cancel = _ref3.cancel;
                if (!this.isMultiDrag) return;

                if (!this.options.removeCloneOnHide) {
                    if (multiDragElements.length && multiDragSortable === sortable) {
                        insertMultiDragClones(true, rootEl);
                        dispatchSortableEvent('clone');
                        cancel();
                    }
                }
            },
            showClone: function showClone(_ref4) {
                var cloneNowShown = _ref4.cloneNowShown,
                    rootEl = _ref4.rootEl,
                    cancel = _ref4.cancel;
                if (!this.isMultiDrag) return;
                insertMultiDragClones(false, rootEl);
                multiDragClones.forEach(function (clone) {
                    css(clone, 'display', '');
                });
                cloneNowShown();
                clonesHidden = false;
                cancel();
            },
            hideClone: function hideClone(_ref5) {
                var _this = this;

                var sortable = _ref5.sortable,
                    cloneNowHidden = _ref5.cloneNowHidden,
                    cancel = _ref5.cancel;
                if (!this.isMultiDrag) return;
                multiDragClones.forEach(function (clone) {
                    css(clone, 'display', 'none');

                    if (_this.options.removeCloneOnHide && clone.parentNode) {
                        clone.parentNode.removeChild(clone);
                    }
                });
                cloneNowHidden();
                clonesHidden = true;
                cancel();
            },
            dragStartGlobal: function dragStartGlobal(_ref6) {
                var sortable = _ref6.sortable;

                if (!this.isMultiDrag && multiDragSortable) {
                    multiDragSortable.multiDrag._deselectMultiDrag();
                }

                multiDragElements.forEach(function (multiDragElement) {
                    multiDragElement.sortableIndex = index(multiDragElement);
                }); // Sort multi-drag elements

                multiDragElements = multiDragElements.sort(function (a, b) {
                    return a.sortableIndex - b.sortableIndex;
                });
                dragStarted = true;
            },
            dragStarted: function dragStarted(_ref7) {
                var _this2 = this;

                var sortable = _ref7.sortable;
                if (!this.isMultiDrag) return;

                if (this.options.sort) {
                    // Capture rects,
                    // hide multi drag elements (by positioning them absolute),
                    // set multi drag elements rects to dragRect,
                    // show multi drag elements,
                    // animate to rects,
                    // unset rects & remove from DOM
                    sortable.captureAnimationState();

                    if (this.options.animation) {
                        multiDragElements.forEach(function (multiDragElement) {
                            if (multiDragElement === dragEl$1) return;
                            css(multiDragElement, 'position', 'absolute');
                        });
                        var dragRect = getRect(dragEl$1, false, true, true);
                        multiDragElements.forEach(function (multiDragElement) {
                            if (multiDragElement === dragEl$1) return;
                            setRect(multiDragElement, dragRect);
                        });
                        folding = true;
                        initialFolding = true;
                    }
                }

                sortable.animateAll(function () {
                    folding = false;
                    initialFolding = false;

                    if (_this2.options.animation) {
                        multiDragElements.forEach(function (multiDragElement) {
                            unsetRect(multiDragElement);
                        });
                    } // Remove all auxiliary multidrag items from el, if sorting enabled


                    if (_this2.options.sort) {
                        removeMultiDragElements();
                    }
                });
            },
            dragOver: function dragOver(_ref8) {
                var target = _ref8.target,
                    completed = _ref8.completed,
                    cancel = _ref8.cancel;

                if (folding && ~multiDragElements.indexOf(target)) {
                    completed(false);
                    cancel();
                }
            },
            revert: function revert(_ref9) {
                var fromSortable = _ref9.fromSortable,
                    rootEl = _ref9.rootEl,
                    sortable = _ref9.sortable,
                    dragRect = _ref9.dragRect;

                if (multiDragElements.length > 1) {
                    // Setup unfold animation
                    multiDragElements.forEach(function (multiDragElement) {
                        sortable.addAnimationState({
                            target: multiDragElement,
                            rect: folding ? getRect(multiDragElement) : dragRect
                        });
                        unsetRect(multiDragElement);
                        multiDragElement.fromRect = dragRect;
                        fromSortable.removeAnimationState(multiDragElement);
                    });
                    folding = false;
                    insertMultiDragElements(!this.options.removeCloneOnHide, rootEl);
                }
            },
            dragOverCompleted: function dragOverCompleted(_ref10) {
                var sortable = _ref10.sortable,
                    isOwner = _ref10.isOwner,
                    insertion = _ref10.insertion,
                    activeSortable = _ref10.activeSortable,
                    parentEl = _ref10.parentEl,
                    putSortable = _ref10.putSortable;
                var options = this.options;

                if (insertion) {
                    // Clones must be hidden before folding animation to capture dragRectAbsolute properly
                    if (isOwner) {
                        activeSortable._hideClone();
                    }

                    initialFolding = false; // If leaving sort:false root, or already folding - Fold to new location

                    if (options.animation && multiDragElements.length > 1 && (folding || !isOwner && !activeSortable.options.sort && !putSortable)) {
                        // Fold: Set all multi drag elements's rects to dragEl's rect when multi-drag elements are invisible
                        var dragRectAbsolute = getRect(dragEl$1, false, true, true);
                        multiDragElements.forEach(function (multiDragElement) {
                            if (multiDragElement === dragEl$1) return;
                            setRect(multiDragElement, dragRectAbsolute); // Move element(s) to end of parentEl so that it does not interfere with multi-drag clones insertion if they are inserted
                            // while folding, and so that we can capture them again because old sortable will no longer be fromSortable

                            parentEl.appendChild(multiDragElement);
                        });
                        folding = true;
                    } // Clones must be shown (and check to remove multi drags) after folding when interfering multiDragElements are moved out


                    if (!isOwner) {
                        // Only remove if not folding (folding will remove them anyways)
                        if (!folding) {
                            removeMultiDragElements();
                        }

                        if (multiDragElements.length > 1) {
                            var clonesHiddenBefore = clonesHidden;

                            activeSortable._showClone(sortable); // Unfold animation for clones if showing from hidden


                            if (activeSortable.options.animation && !clonesHidden && clonesHiddenBefore) {
                                multiDragClones.forEach(function (clone) {
                                    activeSortable.addAnimationState({
                                        target: clone,
                                        rect: clonesFromRect
                                    });
                                    clone.fromRect = clonesFromRect;
                                    clone.thisAnimationDuration = null;
                                });
                            }
                        } else {
                            activeSortable._showClone(sortable);
                        }
                    }
                }
            },
            dragOverAnimationCapture: function dragOverAnimationCapture(_ref11) {
                var dragRect = _ref11.dragRect,
                    isOwner = _ref11.isOwner,
                    activeSortable = _ref11.activeSortable;
                multiDragElements.forEach(function (multiDragElement) {
                    multiDragElement.thisAnimationDuration = null;
                });

                if (activeSortable.options.animation && !isOwner && activeSortable.multiDrag.isMultiDrag) {
                    clonesFromRect = _extends({}, dragRect);
                    var dragMatrix = matrix(dragEl$1, true);
                    clonesFromRect.top -= dragMatrix.f;
                    clonesFromRect.left -= dragMatrix.e;
                }
            },
            dragOverAnimationComplete: function dragOverAnimationComplete() {
                if (folding) {
                    folding = false;
                    removeMultiDragElements();
                }
            },
            drop: function drop(_ref12) {
                var evt = _ref12.originalEvent,
                    rootEl = _ref12.rootEl,
                    parentEl = _ref12.parentEl,
                    sortable = _ref12.sortable,
                    dispatchSortableEvent = _ref12.dispatchSortableEvent,
                    oldIndex = _ref12.oldIndex,
                    putSortable = _ref12.putSortable;
                var toSortable = putSortable || this.sortable;
                if (!evt) return;
                var options = this.options,
                    children = parentEl.children; // Multi-drag selection

                if (!dragStarted) {
                    if (options.multiDragKey && !this.multiDragKeyDown) {
                        this._deselectMultiDrag();
                    }

                    toggleClass(dragEl$1, options.selectedClass, !~multiDragElements.indexOf(dragEl$1));

                    if (!~multiDragElements.indexOf(dragEl$1)) {
                        multiDragElements.push(dragEl$1);
                        dispatchEvent({
                            sortable: sortable,
                            rootEl: rootEl,
                            name: 'select',
                            targetEl: dragEl$1,
                            originalEvent: evt
                        }); // Modifier activated, select from last to dragEl

                        if (evt.shiftKey && lastMultiDragSelect && sortable.el.contains(lastMultiDragSelect)) {
                            var lastIndex = index(lastMultiDragSelect),
                                currentIndex = index(dragEl$1);

                            if (~lastIndex && ~currentIndex && lastIndex !== currentIndex) {
                                // Must include lastMultiDragSelect (select it), in case modified selection from no selection
                                // (but previous selection existed)
                                var n, i;

                                if (currentIndex > lastIndex) {
                                    i = lastIndex;
                                    n = currentIndex;
                                } else {
                                    i = currentIndex;
                                    n = lastIndex + 1;
                                }

                                for (; i < n; i++) {
                                    if (~multiDragElements.indexOf(children[i])) continue;
                                    toggleClass(children[i], options.selectedClass, true);
                                    multiDragElements.push(children[i]);
                                    dispatchEvent({
                                        sortable: sortable,
                                        rootEl: rootEl,
                                        name: 'select',
                                        targetEl: children[i],
                                        originalEvent: evt
                                    });
                                }
                            }
                        } else {
                            lastMultiDragSelect = dragEl$1;
                        }

                        multiDragSortable = toSortable;
                    } else {
                        multiDragElements.splice(multiDragElements.indexOf(dragEl$1), 1);
                        lastMultiDragSelect = null;
                        dispatchEvent({
                            sortable: sortable,
                            rootEl: rootEl,
                            name: 'deselect',
                            targetEl: dragEl$1,
                            originalEvent: evt
                        });
                    }
                } // Multi-drag drop


                if (dragStarted && this.isMultiDrag) {
                    folding = false; // Do not "unfold" after around dragEl if reverted

                    if ((parentEl[expando].options.sort || parentEl !== rootEl) && multiDragElements.length > 1) {
                        var dragRect = getRect(dragEl$1),
                            multiDragIndex = index(dragEl$1, ':not(.' + this.options.selectedClass + ')');
                        if (!initialFolding && options.animation) dragEl$1.thisAnimationDuration = null;
                        toSortable.captureAnimationState();

                        if (!initialFolding) {
                            if (options.animation) {
                                dragEl$1.fromRect = dragRect;
                                multiDragElements.forEach(function (multiDragElement) {
                                    multiDragElement.thisAnimationDuration = null;

                                    if (multiDragElement !== dragEl$1) {
                                        var rect = folding ? getRect(multiDragElement) : dragRect;
                                        multiDragElement.fromRect = rect; // Prepare unfold animation

                                        toSortable.addAnimationState({
                                            target: multiDragElement,
                                            rect: rect
                                        });
                                    }
                                });
                            } // Multi drag elements are not necessarily removed from the DOM on drop, so to reinsert
                            // properly they must all be removed


                            removeMultiDragElements();
                            multiDragElements.forEach(function (multiDragElement) {
                                if (children[multiDragIndex]) {
                                    parentEl.insertBefore(multiDragElement, children[multiDragIndex]);
                                } else {
                                    parentEl.appendChild(multiDragElement);
                                }

                                multiDragIndex++;
                            }); // If initial folding is done, the elements may have changed position because they are now
                            // unfolding around dragEl, even though dragEl may not have his index changed, so update event
                            // must be fired here as Sortable will not.

                            if (oldIndex === index(dragEl$1)) {
                                var update = false;
                                multiDragElements.forEach(function (multiDragElement) {
                                    if (multiDragElement.sortableIndex !== index(multiDragElement)) {
                                        update = true;
                                        return;
                                    }
                                });

                                if (update) {
                                    dispatchSortableEvent('update');
                                }
                            }
                        } // Must be done after capturing individual rects (scroll bar)


                        multiDragElements.forEach(function (multiDragElement) {
                            unsetRect(multiDragElement);
                        });
                        toSortable.animateAll();
                    }

                    multiDragSortable = toSortable;
                } // Remove clones if necessary


                if (rootEl === parentEl || putSortable && putSortable.lastPutMode !== 'clone') {
                    multiDragClones.forEach(function (clone) {
                        clone.parentNode && clone.parentNode.removeChild(clone);
                    });
                }
            },
            nullingGlobal: function nullingGlobal() {
                this.isMultiDrag = dragStarted = false;
                multiDragClones.length = 0;
            },
            destroyGlobal: function destroyGlobal() {
                this._deselectMultiDrag();

                off(document, 'pointerup', this._deselectMultiDrag);
                off(document, 'mouseup', this._deselectMultiDrag);
                off(document, 'touchend', this._deselectMultiDrag);
                off(document, 'keydown', this._checkKeyDown);
                off(document, 'keyup', this._checkKeyUp);
            },
            _deselectMultiDrag: function _deselectMultiDrag(evt) {
                if (typeof dragStarted !== "undefined" && dragStarted) return; // Only deselect if selection is in this sortable

                if (multiDragSortable !== this.sortable) return; // Only deselect if target is not item in this sortable

                if (evt && closest(evt.target, this.options.draggable, this.sortable.el, false)) return; // Only deselect if left click

                if (evt && evt.button !== 0) return;

                while (multiDragElements.length) {
                    var el = multiDragElements[0];
                    toggleClass(el, this.options.selectedClass, false);
                    multiDragElements.shift();
                    dispatchEvent({
                        sortable: this.sortable,
                        rootEl: this.sortable.el,
                        name: 'deselect',
                        targetEl: el,
                        originalEvent: evt
                    });
                }
            },
            _checkKeyDown: function _checkKeyDown(evt) {
                if (evt.key === this.options.multiDragKey) {
                    this.multiDragKeyDown = true;
                }
            },
            _checkKeyUp: function _checkKeyUp(evt) {
                if (evt.key === this.options.multiDragKey) {
                    this.multiDragKeyDown = false;
                }
            }
        };
        return _extends(MultiDrag, {
            // Static methods & properties
            pluginName: 'multiDrag',
            utils: {
                /**
                 * Selects the provided multi-drag item
                 * @param  {HTMLElement} el    The element to be selected
                 */
                select: function select(el) {
                    var sortable = el.parentNode[expando];
                    if (!sortable || !sortable.options.multiDrag || ~multiDragElements.indexOf(el)) return;

                    if (multiDragSortable && multiDragSortable !== sortable) {
                        multiDragSortable.multiDrag._deselectMultiDrag();

                        multiDragSortable = sortable;
                    }

                    toggleClass(el, sortable.options.selectedClass, true);
                    multiDragElements.push(el);
                },

                /**
                 * Deselects the provided multi-drag item
                 * @param  {HTMLElement} el    The element to be deselected
                 */
                deselect: function deselect(el) {
                    var sortable = el.parentNode[expando],
                        index = multiDragElements.indexOf(el);
                    if (!sortable || !sortable.options.multiDrag || !~index) return;
                    toggleClass(el, sortable.options.selectedClass, false);
                    multiDragElements.splice(index, 1);
                }
            },
            eventProperties: function eventProperties() {
                var _this3 = this;

                var oldIndicies = [],
                    newIndicies = [];
                multiDragElements.forEach(function (multiDragElement) {
                    oldIndicies.push({
                        multiDragElement: multiDragElement,
                        index: multiDragElement.sortableIndex
                    }); // multiDragElements will already be sorted if folding

                    var newIndex;

                    if (folding && multiDragElement !== dragEl$1) {
                        newIndex = -1;
                    } else if (folding) {
                        newIndex = index(multiDragElement, ':not(.' + _this3.options.selectedClass + ')');
                    } else {
                        newIndex = index(multiDragElement);
                    }

                    newIndicies.push({
                        multiDragElement: multiDragElement,
                        index: newIndex
                    });
                });
                return {
                    items: _toConsumableArray(multiDragElements),
                    clones: [].concat(multiDragClones),
                    oldIndicies: oldIndicies,
                    newIndicies: newIndicies
                };
            },
            optionListeners: {
                multiDragKey: function multiDragKey(key) {
                    key = key.toLowerCase();

                    if (key === 'ctrl') {
                        key = 'Control';
                    } else if (key.length > 1) {
                        key = key.charAt(0).toUpperCase() + key.substr(1);
                    }

                    return key;
                }
            }
        });
    }

    function insertMultiDragElements(clonesInserted, rootEl) {
        multiDragElements.forEach(function (multiDragElement, i) {
            var target = rootEl.children[multiDragElement.sortableIndex + (clonesInserted ? Number(i) : 0)];

            if (target) {
                rootEl.insertBefore(multiDragElement, target);
            } else {
                rootEl.appendChild(multiDragElement);
            }
        });
    }
    /**
     * Insert multi-drag clones
     * @param  {[Boolean]} elementsInserted  Whether the multi-drag elements are inserted
     * @param  {HTMLElement} rootEl
     */


    function insertMultiDragClones(elementsInserted, rootEl) {
        multiDragClones.forEach(function (clone, i) {
            var target = rootEl.children[clone.sortableIndex + (elementsInserted ? Number(i) : 0)];

            if (target) {
                rootEl.insertBefore(clone, target);
            } else {
                rootEl.appendChild(clone);
            }
        });
    }

    function removeMultiDragElements() {
        multiDragElements.forEach(function (multiDragElement) {
            if (multiDragElement === dragEl$1) return;
            multiDragElement.parentNode && multiDragElement.parentNode.removeChild(multiDragElement);
        });
    }

    Sortable.mount(new AutoScrollPlugin());
    Sortable.mount(Remove, Revert);

    Sortable.mount(new SwapPlugin());
    Sortable.mount(new MultiDragPlugin());

    return Sortable;

})));

function displayError(text, title) {
	var panel = document.createElement('div');
	panel.className = 'panel panel-danger displayError';
	var headline = document.createElement('div');
	headline.className = 'panel-heading';
	headline.innerHTML = title;
	panel.appendChild(headline);

	var content = document.createElement('div');
	content.className = 'panel-body';
	content.innerHTML = text;

	panel.appendChild(content);
	return panel;
}

function openModalLoading(title) {
	jQuery('#modal .modal-dialog').removeClass('modal-lg');
	jQuery('#modal .modal-title').text(title);
	jQuery('#modal .modal-body').html('<p class="text-center loading">Loading..</p>');
	jQuery('#modal').modal('show');
	jQuery('#modal .save').hide();
}$(function() { if(window.q !== undefined) { for(var i = 0; i < window.q.length; i++) { window.q[i](); } } });