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public/assets/jquery-ui/sortable-171c104f15c5a6b34119e8f4b44f26483624bf434dc2342433c76671379be3ea.js

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/*!
 * jQuery UI Core 1.11.4
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/category/ui-core/
 */

(function( factory ) {
    if ( typeof define === "function" && define.amd ) {

        // AMD. Register as an anonymous module.
        define( [ "jquery" ], factory );
    } else {

        // Browser globals
        factory( jQuery );
    }
}(function( $ ) {

// $.ui might exist from components with no dependencies, e.g., $.ui.position
$.ui = $.ui || {};

$.extend( $.ui, {
    version: "1.11.4",

    keyCode: {
        BACKSPACE: 8,
        COMMA: 188,
        DELETE: 46,
        DOWN: 40,
        END: 35,
        ENTER: 13,
        ESCAPE: 27,
        HOME: 36,
        LEFT: 37,
        PAGE_DOWN: 34,
        PAGE_UP: 33,
        PERIOD: 190,
        RIGHT: 39,
        SPACE: 32,
        TAB: 9,
        UP: 38
    }
});

// plugins
$.fn.extend({
    scrollParent: function( includeHidden ) {
        var position = this.css( "position" ),
            excludeStaticParent = position === "absolute",
            overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/,
            scrollParent = this.parents().filter( function() {
                var parent = $( this );
                if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
                    return false;
                }
                return overflowRegex.test( parent.css( "overflow" ) + parent.css( "overflow-y" ) + parent.css( "overflow-x" ) );
            }).eq( 0 );

        return position === "fixed" || !scrollParent.length ? $( this[ 0 ].ownerDocument || document ) : scrollParent;
    },

    uniqueId: (function() {
        var uuid = 0;

        return function() {
            return this.each(function() {
                if ( !this.id ) {
                    this.id = "ui-id-" + ( ++uuid );
                }
            });
        };
    })(),

    removeUniqueId: function() {
        return this.each(function() {
            if ( /^ui-id-\d+$/.test( this.id ) ) {
                $( this ).removeAttr( "id" );
            }
        });
    }
});

// selectors
function focusable( element, isTabIndexNotNaN ) {
    var map, mapName, img,
        nodeName = element.nodeName.toLowerCase();
    if ( "area" === nodeName ) {
        map = element.parentNode;
        mapName = map.name;
        if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
            return false;
        }
        img = $( "img[usemap='#" + mapName + "']" )[ 0 ];
        return !!img && visible( img );
    }
    return ( /^(input|select|textarea|button|object)$/.test( nodeName ) ?
        !element.disabled :
        "a" === nodeName ?
            element.href || isTabIndexNotNaN :
            isTabIndexNotNaN) &&
        // the element and all of its ancestors must be visible
        visible( element );
}

function visible( element ) {
    return $.expr.filters.visible( element ) &&
        !$( element ).parents().addBack().filter(function() {
            return $.css( this, "visibility" ) === "hidden";
        }).length;
}

$.extend( $.expr[ ":" ], {
    data: $.expr.createPseudo ?
        $.expr.createPseudo(function( dataName ) {
            return function( elem ) {
                return !!$.data( elem, dataName );
            };
        }) :
        // support: jQuery <1.8
        function( elem, i, match ) {
            return !!$.data( elem, match[ 3 ] );
        },

    focusable: function( element ) {
        return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
    },

    tabbable: function( element ) {
        var tabIndex = $.attr( element, "tabindex" ),
            isTabIndexNaN = isNaN( tabIndex );
        return ( isTabIndexNaN || tabIndex >= 0 ) && focusable( element, !isTabIndexNaN );
    }
});

// support: jQuery <1.8
if ( !$( "<a>" ).outerWidth( 1 ).jquery ) {
    $.each( [ "Width", "Height" ], function( i, name ) {
        var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
            type = name.toLowerCase(),
            orig = {
                innerWidth: $.fn.innerWidth,
                innerHeight: $.fn.innerHeight,
                outerWidth: $.fn.outerWidth,
                outerHeight: $.fn.outerHeight
            };

        function reduce( elem, size, border, margin ) {
            $.each( side, function() {
                size -= parseFloat( $.css( elem, "padding" + this ) ) || 0;
                if ( border ) {
                    size -= parseFloat( $.css( elem, "border" + this + "Width" ) ) || 0;
                }
                if ( margin ) {
                    size -= parseFloat( $.css( elem, "margin" + this ) ) || 0;
                }
            });
            return size;
        }

        $.fn[ "inner" + name ] = function( size ) {
            if ( size === undefined ) {
                return orig[ "inner" + name ].call( this );
            }

            return this.each(function() {
                $( this ).css( type, reduce( this, size ) + "px" );
            });
        };

        $.fn[ "outer" + name] = function( size, margin ) {
            if ( typeof size !== "number" ) {
                return orig[ "outer" + name ].call( this, size );
            }

            return this.each(function() {
                $( this).css( type, reduce( this, size, true, margin ) + "px" );
            });
        };
    });
}

// support: jQuery <1.8
if ( !$.fn.addBack ) {
    $.fn.addBack = function( selector ) {
        return this.add( selector == null ?
            this.prevObject : this.prevObject.filter( selector )
        );
    };
}

// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
if ( $( "<a>" ).data( "a-b", "a" ).removeData( "a-b" ).data( "a-b" ) ) {
    $.fn.removeData = (function( removeData ) {
        return function( key ) {
            if ( arguments.length ) {
                return removeData.call( this, $.camelCase( key ) );
            } else {
                return removeData.call( this );
            }
        };
    })( $.fn.removeData );
}

// deprecated
$.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );

$.fn.extend({
    focus: (function( orig ) {
        return function( delay, fn ) {
            return typeof delay === "number" ?
                this.each(function() {
                    var elem = this;
                    setTimeout(function() {
                        $( elem ).focus();
                        if ( fn ) {
                            fn.call( elem );
                        }
                    }, delay );
                }) :
                orig.apply( this, arguments );
        };
    })( $.fn.focus ),

    disableSelection: (function() {
        var eventType = "onselectstart" in document.createElement( "div" ) ?
            "selectstart" :
            "mousedown";

        return function() {
            return this.bind( eventType + ".ui-disableSelection", function( event ) {
                event.preventDefault();
            });
        };
    })(),

    enableSelection: function() {
        return this.unbind( ".ui-disableSelection" );
    },

    zIndex: function( zIndex ) {
        if ( zIndex !== undefined ) {
            return this.css( "zIndex", zIndex );
        }

        if ( this.length ) {
            var elem = $( this[ 0 ] ), position, value;
            while ( elem.length && elem[ 0 ] !== document ) {
                // Ignore z-index if position is set to a value where z-index is ignored by the browser
                // This makes behavior of this function consistent across browsers
                // WebKit always returns auto if the element is positioned
                position = elem.css( "position" );
                if ( position === "absolute" || position === "relative" || position === "fixed" ) {
                    // IE returns 0 when zIndex is not specified
                    // other browsers return a string
                    // we ignore the case of nested elements with an explicit value of 0
                    // <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
                    value = parseInt( elem.css( "zIndex" ), 10 );
                    if ( !isNaN( value ) && value !== 0 ) {
                        return value;
                    }
                }
                elem = elem.parent();
            }
        }

        return 0;
    }
});

// $.ui.plugin is deprecated. Use $.widget() extensions instead.
$.ui.plugin = {
    add: function( module, option, set ) {
        var i,
            proto = $.ui[ module ].prototype;
        for ( i in set ) {
            proto.plugins[ i ] = proto.plugins[ i ] || [];
            proto.plugins[ i ].push( [ option, set[ i ] ] );
        }
    },
    call: function( instance, name, args, allowDisconnected ) {
        var i,
            set = instance.plugins[ name ];

        if ( !set ) {
            return;
        }

        if ( !allowDisconnected && ( !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) ) {
            return;
        }

        for ( i = 0; i < set.length; i++ ) {
            if ( instance.options[ set[ i ][ 0 ] ] ) {
                set[ i ][ 1 ].apply( instance.element, args );
            }
        }
    }
};

}));
/*!
 * jQuery UI Widget 1.11.4
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/jQuery.widget/
 */

(function( factory ) {
    if ( typeof define === "function" && define.amd ) {

        // AMD. Register as an anonymous module.
        define( [ "jquery" ], factory );
    } else {

        // Browser globals
        factory( jQuery );
    }
}(function( $ ) {

var widget_uuid = 0,
    widget_slice = Array.prototype.slice;

$.cleanData = (function( orig ) {
    return function( elems ) {
        var events, elem, i;
        for ( i = 0; (elem = elems[i]) != null; i++ ) {
            try {

                // Only trigger remove when necessary to save time
                events = $._data( elem, "events" );
                if ( events && events.remove ) {
                    $( elem ).triggerHandler( "remove" );
                }

            // http://bugs.jquery.com/ticket/8235
            } catch ( e ) {}
        }
        orig( elems );
    };
})( $.cleanData );

$.widget = function( name, base, prototype ) {
    var fullName, existingConstructor, constructor, basePrototype,
        // proxiedPrototype allows the provided prototype to remain unmodified
        // so that it can be used as a mixin for multiple widgets (#8876)
        proxiedPrototype = {},
        namespace = name.split( "." )[ 0 ];

    name = name.split( "." )[ 1 ];
    fullName = namespace + "-" + name;

    if ( !prototype ) {
        prototype = base;
        base = $.Widget;
    }

    // create selector for plugin
    $.expr[ ":" ][ fullName.toLowerCase() ] = function( elem ) {
        return !!$.data( elem, fullName );
    };

    $[ namespace ] = $[ namespace ] || {};
    existingConstructor = $[ namespace ][ name ];
    constructor = $[ namespace ][ name ] = function( options, element ) {
        // allow instantiation without "new" keyword
        if ( !this._createWidget ) {
            return new constructor( options, element );
        }

        // allow instantiation without initializing for simple inheritance
        // must use "new" keyword (the code above always passes args)
        if ( arguments.length ) {
            this._createWidget( options, element );
        }
    };
    // extend with the existing constructor to carry over any static properties
    $.extend( constructor, existingConstructor, {
        version: prototype.version,
        // copy the object used to create the prototype in case we need to
        // redefine the widget later
        _proto: $.extend( {}, prototype ),
        // track widgets that inherit from this widget in case this widget is
        // redefined after a widget inherits from it
        _childConstructors: []
    });

    basePrototype = new base();
    // we need to make the options hash a property directly on the new instance
    // otherwise we'll modify the options hash on the prototype that we're
    // inheriting from
    basePrototype.options = $.widget.extend( {}, basePrototype.options );
    $.each( prototype, function( prop, value ) {
        if ( !$.isFunction( value ) ) {
            proxiedPrototype[ prop ] = value;
            return;
        }
        proxiedPrototype[ prop ] = (function() {
            var _super = function() {
                    return base.prototype[ prop ].apply( this, arguments );
                },
                _superApply = function( args ) {
                    return base.prototype[ prop ].apply( this, args );
                };
            return function() {
                var __super = this._super,
                    __superApply = this._superApply,
                    returnValue;

                this._super = _super;
                this._superApply = _superApply;

                returnValue = value.apply( this, arguments );

                this._super = __super;
                this._superApply = __superApply;

                return returnValue;
            };
        })();
    });
    constructor.prototype = $.widget.extend( basePrototype, {
        // TODO: remove support for widgetEventPrefix
        // always use the name + a colon as the prefix, e.g., draggable:start
        // don't prefix for widgets that aren't DOM-based
        widgetEventPrefix: existingConstructor ? (basePrototype.widgetEventPrefix || name) : name
    }, proxiedPrototype, {
        constructor: constructor,
        namespace: namespace,
        widgetName: name,
        widgetFullName: fullName
    });

    // If this widget is being redefined then we need to find all widgets that
    // are inheriting from it and redefine all of them so that they inherit from
    // the new version of this widget. We're essentially trying to replace one
    // level in the prototype chain.
    if ( existingConstructor ) {
        $.each( existingConstructor._childConstructors, function( i, child ) {
            var childPrototype = child.prototype;

            // redefine the child widget using the same prototype that was
            // originally used, but inherit from the new version of the base
            $.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor, child._proto );
        });
        // remove the list of existing child constructors from the old constructor
        // so the old child constructors can be garbage collected
        delete existingConstructor._childConstructors;
    } else {
        base._childConstructors.push( constructor );
    }

    $.widget.bridge( name, constructor );

    return constructor;
};

$.widget.extend = function( target ) {
    var input = widget_slice.call( arguments, 1 ),
        inputIndex = 0,
        inputLength = input.length,
        key,
        value;
    for ( ; inputIndex < inputLength; inputIndex++ ) {
        for ( key in input[ inputIndex ] ) {
            value = input[ inputIndex ][ key ];
            if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {
                // Clone objects
                if ( $.isPlainObject( value ) ) {
                    target[ key ] = $.isPlainObject( target[ key ] ) ?
                        $.widget.extend( {}, target[ key ], value ) :
                        // Don't extend strings, arrays, etc. with objects
                        $.widget.extend( {}, value );
                // Copy everything else by reference
                } else {
                    target[ key ] = value;
                }
            }
        }
    }
    return target;
};

$.widget.bridge = function( name, object ) {
    var fullName = object.prototype.widgetFullName || name;
    $.fn[ name ] = function( options ) {
        var isMethodCall = typeof options === "string",
            args = widget_slice.call( arguments, 1 ),
            returnValue = this;

        if ( isMethodCall ) {
            this.each(function() {
                var methodValue,
                    instance = $.data( this, fullName );
                if ( options === "instance" ) {
                    returnValue = instance;
                    return false;
                }
                if ( !instance ) {
                    return $.error( "cannot call methods on " + name + " prior to initialization; " +
                        "attempted to call method '" + options + "'" );
                }
                if ( !$.isFunction( instance[options] ) || options.charAt( 0 ) === "_" ) {
                    return $.error( "no such method '" + options + "' for " + name + " widget instance" );
                }
                methodValue = instance[ options ].apply( instance, args );
                if ( methodValue !== instance && methodValue !== undefined ) {
                    returnValue = methodValue && methodValue.jquery ?
                        returnValue.pushStack( methodValue.get() ) :
                        methodValue;
                    return false;
                }
            });
        } else {

            // Allow multiple hashes to be passed on init
            if ( args.length ) {
                options = $.widget.extend.apply( null, [ options ].concat(args) );
            }

            this.each(function() {
                var instance = $.data( this, fullName );
                if ( instance ) {
                    instance.option( options || {} );
                    if ( instance._init ) {
                        instance._init();
                    }
                } else {
                    $.data( this, fullName, new object( options, this ) );
                }
            });
        }

        return returnValue;
    };
};

$.Widget = function( /* options, element */ ) {};
$.Widget._childConstructors = [];

$.Widget.prototype = {
    widgetName: "widget",
    widgetEventPrefix: "",
    defaultElement: "<div>",
    options: {
        disabled: false,

        // callbacks
        create: null
    },
    _createWidget: function( options, element ) {
        element = $( element || this.defaultElement || this )[ 0 ];
        this.element = $( element );
        this.uuid = widget_uuid++;
        this.eventNamespace = "." + this.widgetName + this.uuid;

        this.bindings = $();
        this.hoverable = $();
        this.focusable = $();

        if ( element !== this ) {
            $.data( element, this.widgetFullName, this );
            this._on( true, this.element, {
                remove: function( event ) {
                    if ( event.target === element ) {
                        this.destroy();
                    }
                }
            });
            this.document = $( element.style ?
                // element within the document
                element.ownerDocument :
                // element is window or document
                element.document || element );
            this.window = $( this.document[0].defaultView || this.document[0].parentWindow );
        }

        this.options = $.widget.extend( {},
            this.options,
            this._getCreateOptions(),
            options );

        this._create();
        this._trigger( "create", null, this._getCreateEventData() );
        this._init();
    },
    _getCreateOptions: $.noop,
    _getCreateEventData: $.noop,
    _create: $.noop,
    _init: $.noop,

    destroy: function() {
        this._destroy();
        // we can probably remove the unbind calls in 2.0
        // all event bindings should go through this._on()
        this.element
            .unbind( this.eventNamespace )
            .removeData( this.widgetFullName )
            // support: jquery <1.6.3
            // http://bugs.jquery.com/ticket/9413
            .removeData( $.camelCase( this.widgetFullName ) );
        this.widget()
            .unbind( this.eventNamespace )
            .removeAttr( "aria-disabled" )
            .removeClass(
                this.widgetFullName + "-disabled " +
                "ui-state-disabled" );

        // clean up events and states
        this.bindings.unbind( this.eventNamespace );
        this.hoverable.removeClass( "ui-state-hover" );
        this.focusable.removeClass( "ui-state-focus" );
    },
    _destroy: $.noop,

    widget: function() {
        return this.element;
    },

    option: function( key, value ) {
        var options = key,
            parts,
            curOption,
            i;

        if ( arguments.length === 0 ) {
            // don't return a reference to the internal hash
            return $.widget.extend( {}, this.options );
        }

        if ( typeof key === "string" ) {
            // handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
            options = {};
            parts = key.split( "." );
            key = parts.shift();
            if ( parts.length ) {
                curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
                for ( i = 0; i < parts.length - 1; i++ ) {
                    curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
                    curOption = curOption[ parts[ i ] ];
                }
                key = parts.pop();
                if ( arguments.length === 1 ) {
                    return curOption[ key ] === undefined ? null : curOption[ key ];
                }
                curOption[ key ] = value;
            } else {
                if ( arguments.length === 1 ) {
                    return this.options[ key ] === undefined ? null : this.options[ key ];
                }
                options[ key ] = value;
            }
        }

        this._setOptions( options );

        return this;
    },
    _setOptions: function( options ) {
        var key;

        for ( key in options ) {
            this._setOption( key, options[ key ] );
        }

        return this;
    },
    _setOption: function( key, value ) {
        this.options[ key ] = value;

        if ( key === "disabled" ) {
            this.widget()
                .toggleClass( this.widgetFullName + "-disabled", !!value );

            // If the widget is becoming disabled, then nothing is interactive
            if ( value ) {
                this.hoverable.removeClass( "ui-state-hover" );
                this.focusable.removeClass( "ui-state-focus" );
            }
        }

        return this;
    },

    enable: function() {
        return this._setOptions({ disabled: false });
    },
    disable: function() {
        return this._setOptions({ disabled: true });
    },

    _on: function( suppressDisabledCheck, element, handlers ) {
        var delegateElement,
            instance = this;

        // no suppressDisabledCheck flag, shuffle arguments
        if ( typeof suppressDisabledCheck !== "boolean" ) {
            handlers = element;
            element = suppressDisabledCheck;
            suppressDisabledCheck = false;
        }

        // no element argument, shuffle and use this.element
        if ( !handlers ) {
            handlers = element;
            element = this.element;
            delegateElement = this.widget();
        } else {
            element = delegateElement = $( element );
            this.bindings = this.bindings.add( element );
        }

        $.each( handlers, function( event, handler ) {
            function handlerProxy() {
                // allow widgets to customize the disabled handling
                // - disabled as an array instead of boolean
                // - disabled class as method for disabling individual parts
                if ( !suppressDisabledCheck &&
                        ( instance.options.disabled === true ||
                            $( this ).hasClass( "ui-state-disabled" ) ) ) {
                    return;
                }
                return ( typeof handler === "string" ? instance[ handler ] : handler )
                    .apply( instance, arguments );
            }

            // copy the guid so direct unbinding works
            if ( typeof handler !== "string" ) {
                handlerProxy.guid = handler.guid =
                    handler.guid || handlerProxy.guid || $.guid++;
            }

            var match = event.match( /^([\w:-]*)\s*(.*)$/ ),
                eventName = match[1] + instance.eventNamespace,
                selector = match[2];
            if ( selector ) {
                delegateElement.delegate( selector, eventName, handlerProxy );
            } else {
                element.bind( eventName, handlerProxy );
            }
        });
    },

    _off: function( element, eventName ) {
        eventName = (eventName || "").split( " " ).join( this.eventNamespace + " " ) +
            this.eventNamespace;
        element.unbind( eventName ).undelegate( eventName );

        // Clear the stack to avoid memory leaks (#10056)
        this.bindings = $( this.bindings.not( element ).get() );
        this.focusable = $( this.focusable.not( element ).get() );
        this.hoverable = $( this.hoverable.not( element ).get() );
    },

    _delay: function( handler, delay ) {
        function handlerProxy() {
            return ( typeof handler === "string" ? instance[ handler ] : handler )
                .apply( instance, arguments );
        }
        var instance = this;
        return setTimeout( handlerProxy, delay || 0 );
    },

    _hoverable: function( element ) {
        this.hoverable = this.hoverable.add( element );
        this._on( element, {
            mouseenter: function( event ) {
                $( event.currentTarget ).addClass( "ui-state-hover" );
            },
            mouseleave: function( event ) {
                $( event.currentTarget ).removeClass( "ui-state-hover" );
            }
        });
    },

    _focusable: function( element ) {
        this.focusable = this.focusable.add( element );
        this._on( element, {
            focusin: function( event ) {
                $( event.currentTarget ).addClass( "ui-state-focus" );
            },
            focusout: function( event ) {
                $( event.currentTarget ).removeClass( "ui-state-focus" );
            }
        });
    },

    _trigger: function( type, event, data ) {
        var prop, orig,
            callback = this.options[ type ];

        data = data || {};
        event = $.Event( event );
        event.type = ( type === this.widgetEventPrefix ?
            type :
            this.widgetEventPrefix + type ).toLowerCase();
        // the original event may come from any element
        // so we need to reset the target on the new event
        event.target = this.element[ 0 ];

        // copy original event properties over to the new event
        orig = event.originalEvent;
        if ( orig ) {
            for ( prop in orig ) {
                if ( !( prop in event ) ) {
                    event[ prop ] = orig[ prop ];
                }
            }
        }

        this.element.trigger( event, data );
        return !( $.isFunction( callback ) &&
            callback.apply( this.element[0], [ event ].concat( data ) ) === false ||
            event.isDefaultPrevented() );
    }
};

$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
    $.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
        if ( typeof options === "string" ) {
            options = { effect: options };
        }
        var hasOptions,
            effectName = !options ?
                method :
                options === true || typeof options === "number" ?
                    defaultEffect :
                    options.effect || defaultEffect;
        options = options || {};
        if ( typeof options === "number" ) {
            options = { duration: options };
        }
        hasOptions = !$.isEmptyObject( options );
        options.complete = callback;
        if ( options.delay ) {
            element.delay( options.delay );
        }
        if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
            element[ method ]( options );
        } else if ( effectName !== method && element[ effectName ] ) {
            element[ effectName ]( options.duration, options.easing, callback );
        } else {
            element.queue(function( next ) {
                $( this )[ method ]();
                if ( callback ) {
                    callback.call( element[ 0 ] );
                }
                next();
            });
        }
    };
});

return $.widget;

}));



/*!
 * jQuery UI Mouse 1.11.4
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/mouse/
 */

(function( factory ) {
    if ( typeof define === "function" && define.amd ) {

        // AMD. Register as an anonymous module.
        define([
            "jquery",
            "./widget"
        ], factory );
    } else {

        // Browser globals
        factory( jQuery );
    }
}(function( $ ) {

var mouseHandled = false;
$( document ).mouseup( function() {
    mouseHandled = false;
});

return $.widget("ui.mouse", {
    version: "1.11.4",
    options: {
        cancel: "input,textarea,button,select,option",
        distance: 1,
        delay: 0
    },
    _mouseInit: function() {
        var that = this;

        this.element
            .bind("mousedown." + this.widgetName, function(event) {
                return that._mouseDown(event);
            })
            .bind("click." + this.widgetName, function(event) {
                if (true === $.data(event.target, that.widgetName + ".preventClickEvent")) {
                    $.removeData(event.target, that.widgetName + ".preventClickEvent");
                    event.stopImmediatePropagation();
                    return false;
                }
            });

        this.started = false;
    },

    // TODO: make sure destroying one instance of mouse doesn't mess with
    // other instances of mouse
    _mouseDestroy: function() {
        this.element.unbind("." + this.widgetName);
        if ( this._mouseMoveDelegate ) {
            this.document
                .unbind("mousemove." + this.widgetName, this._mouseMoveDelegate)
                .unbind("mouseup." + this.widgetName, this._mouseUpDelegate);
        }
    },

    _mouseDown: function(event) {
        // don't let more than one widget handle mouseStart
        if ( mouseHandled ) {
            return;
        }

        this._mouseMoved = false;

        // we may have missed mouseup (out of window)
        (this._mouseStarted && this._mouseUp(event));

        this._mouseDownEvent = event;

        var that = this,
            btnIsLeft = (event.which === 1),
            // event.target.nodeName works around a bug in IE 8 with
            // disabled inputs (#7620)
            elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
        if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
            return true;
        }

        this.mouseDelayMet = !this.options.delay;
        if (!this.mouseDelayMet) {
            this._mouseDelayTimer = setTimeout(function() {
                that.mouseDelayMet = true;
            }, this.options.delay);
        }

        if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
            this._mouseStarted = (this._mouseStart(event) !== false);
            if (!this._mouseStarted) {
                event.preventDefault();
                return true;
            }
        }

        // Click event may never have fired (Gecko & Opera)
        if (true === $.data(event.target, this.widgetName + ".preventClickEvent")) {
            $.removeData(event.target, this.widgetName + ".preventClickEvent");
        }

        // these delegates are required to keep context
        this._mouseMoveDelegate = function(event) {
            return that._mouseMove(event);
        };
        this._mouseUpDelegate = function(event) {
            return that._mouseUp(event);
        };

        this.document
            .bind( "mousemove." + this.widgetName, this._mouseMoveDelegate )
            .bind( "mouseup." + this.widgetName, this._mouseUpDelegate );

        event.preventDefault();

        mouseHandled = true;
        return true;
    },

    _mouseMove: function(event) {
        // Only check for mouseups outside the document if you've moved inside the document
        // at least once. This prevents the firing of mouseup in the case of IE<9, which will
        // fire a mousemove event if content is placed under the cursor. See #7778
        // Support: IE <9
        if ( this._mouseMoved ) {
            // IE mouseup check - mouseup happened when mouse was out of window
            if ($.ui.ie && ( !document.documentMode || document.documentMode < 9 ) && !event.button) {
                return this._mouseUp(event);

            // Iframe mouseup check - mouseup occurred in another document
            } else if ( !event.which ) {
                return this._mouseUp( event );
            }
        }

        if ( event.which || event.button ) {
            this._mouseMoved = true;
        }

        if (this._mouseStarted) {
            this._mouseDrag(event);
            return event.preventDefault();
        }

        if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
            this._mouseStarted =
                (this._mouseStart(this._mouseDownEvent, event) !== false);
            (this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
        }

        return !this._mouseStarted;
    },

    _mouseUp: function(event) {
        this.document
            .unbind( "mousemove." + this.widgetName, this._mouseMoveDelegate )
            .unbind( "mouseup." + this.widgetName, this._mouseUpDelegate );

        if (this._mouseStarted) {
            this._mouseStarted = false;

            if (event.target === this._mouseDownEvent.target) {
                $.data(event.target, this.widgetName + ".preventClickEvent", true);
            }

            this._mouseStop(event);
        }

        mouseHandled = false;
        return false;
    },

    _mouseDistanceMet: function(event) {
        return (Math.max(
                Math.abs(this._mouseDownEvent.pageX - event.pageX),
                Math.abs(this._mouseDownEvent.pageY - event.pageY)
            ) >= this.options.distance
        );
    },

    _mouseDelayMet: function(/* event */) {
        return this.mouseDelayMet;
    },

    // These are placeholder methods, to be overriden by extending plugin
    _mouseStart: function(/* event */) {},
    _mouseDrag: function(/* event */) {},
    _mouseStop: function(/* event */) {},
    _mouseCapture: function(/* event */) { return true; }
});

}));




/*!
 * jQuery UI Sortable 1.11.4
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/sortable/
 */

(function( factory ) {
    if ( typeof define === "function" && define.amd ) {

        // AMD. Register as an anonymous module.
        define([
            "jquery",
            "./core",
            "./mouse",
            "./widget"
        ], factory );
    } else {

        // Browser globals
        factory( jQuery );
    }
}(function( $ ) {

return $.widget("ui.sortable", $.ui.mouse, {
    version: "1.11.4",
    widgetEventPrefix: "sort",
    ready: false,
    options: {
        appendTo: "parent",
        axis: false,
        connectWith: false,
        containment: false,
        cursor: "auto",
        cursorAt: false,
        dropOnEmpty: true,
        forcePlaceholderSize: false,
        forceHelperSize: false,
        grid: false,
        handle: false,
        helper: "original",
        items: "> *",
        opacity: false,
        placeholder: false,
        revert: false,
        scroll: true,
        scrollSensitivity: 20,
        scrollSpeed: 20,
        scope: "default",
        tolerance: "intersect",
        zIndex: 1000,

        // callbacks
        activate: null,
        beforeStop: null,
        change: null,
        deactivate: null,
        out: null,
        over: null,
        receive: null,
        remove: null,
        sort: null,
        start: null,
        stop: null,
        update: null
    },

    _isOverAxis: function( x, reference, size ) {
        return ( x >= reference ) && ( x < ( reference + size ) );
    },

    _isFloating: function( item ) {
        return (/left|right/).test(item.css("float")) || (/inline|table-cell/).test(item.css("display"));
    },

    _create: function() {
        this.containerCache = {};
        this.element.addClass("ui-sortable");

        //Get the items
        this.refresh();

        //Let's determine the parent's offset
        this.offset = this.element.offset();

        //Initialize mouse events for interaction
        this._mouseInit();

        this._setHandleClassName();

        //We're ready to go
        this.ready = true;

    },

    _setOption: function( key, value ) {
        this._super( key, value );

        if ( key === "handle" ) {
            this._setHandleClassName();
        }
    },

    _setHandleClassName: function() {
        this.element.find( ".ui-sortable-handle" ).removeClass( "ui-sortable-handle" );
        $.each( this.items, function() {
            ( this.instance.options.handle ?
                this.item.find( this.instance.options.handle ) : this.item )
                .addClass( "ui-sortable-handle" );
        });
    },

    _destroy: function() {
        this.element
            .removeClass( "ui-sortable ui-sortable-disabled" )
            .find( ".ui-sortable-handle" )
                .removeClass( "ui-sortable-handle" );
        this._mouseDestroy();

        for ( var i = this.items.length - 1; i >= 0; i-- ) {
            this.items[i].item.removeData(this.widgetName + "-item");
        }

        return this;
    },

    _mouseCapture: function(event, overrideHandle) {
        var currentItem = null,
            validHandle = false,
            that = this;

        if (this.reverting) {
            return false;
        }

        if(this.options.disabled || this.options.type === "static") {
            return false;
        }

        //We have to refresh the items data once first
        this._refreshItems(event);

        //Find out if the clicked node (or one of its parents) is a actual item in this.items
        $(event.target).parents().each(function() {
            if($.data(this, that.widgetName + "-item") === that) {
                currentItem = $(this);
                return false;
            }
        });
        if($.data(event.target, that.widgetName + "-item") === that) {
            currentItem = $(event.target);
        }

        if(!currentItem) {
            return false;
        }
        if(this.options.handle && !overrideHandle) {
            $(this.options.handle, currentItem).find("*").addBack().each(function() {
                if(this === event.target) {
                    validHandle = true;
                }
            });
            if(!validHandle) {
                return false;
            }
        }

        this.currentItem = currentItem;
        this._removeCurrentsFromItems();
        return true;

    },

    _mouseStart: function(event, overrideHandle, noActivation) {

        var i, body,
            o = this.options;

        this.currentContainer = this;

        //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture
        this.refreshPositions();

        //Create and append the visible helper
        this.helper = this._createHelper(event);

        //Cache the helper size
        this._cacheHelperProportions();

        /*
         * - Position generation -
         * This block generates everything position related - it's the core of draggables.
         */

        //Cache the margins of the original element
        this._cacheMargins();

        //Get the next scrolling parent
        this.scrollParent = this.helper.scrollParent();

        //The element's absolute position on the page minus margins
        this.offset = this.currentItem.offset();
        this.offset = {
            top: this.offset.top - this.margins.top,
            left: this.offset.left - this.margins.left
        };

        $.extend(this.offset, {
            click: { //Where the click happened, relative to the element
                left: event.pageX - this.offset.left,
                top: event.pageY - this.offset.top
            },
            parent: this._getParentOffset(),
            relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
        });

        // Only after we got the offset, we can change the helper's position to absolute
        // TODO: Still need to figure out a way to make relative sorting possible
        this.helper.css("position", "absolute");
        this.cssPosition = this.helper.css("position");

        //Generate the original position
        this.originalPosition = this._generatePosition(event);
        this.originalPageX = event.pageX;
        this.originalPageY = event.pageY;

        //Adjust the mouse offset relative to the helper if "cursorAt" is supplied
        (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));

        //Cache the former DOM position
        this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] };

        //If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way
        if(this.helper[0] !== this.currentItem[0]) {
            this.currentItem.hide();
        }

        //Create the placeholder
        this._createPlaceholder();

        //Set a containment if given in the options
        if(o.containment) {
            this._setContainment();
        }

        if( o.cursor && o.cursor !== "auto" ) { // cursor option
            body = this.document.find( "body" );

            // support: IE
            this.storedCursor = body.css( "cursor" );
            body.css( "cursor", o.cursor );

            this.storedStylesheet = $( "<style>*{ cursor: "+o.cursor+" !important; }</style>" ).appendTo( body );
        }

        if(o.opacity) { // opacity option
            if (this.helper.css("opacity")) {
                this._storedOpacity = this.helper.css("opacity");
            }
            this.helper.css("opacity", o.opacity);
        }

        if(o.zIndex) { // zIndex option
            if (this.helper.css("zIndex")) {
                this._storedZIndex = this.helper.css("zIndex");
            }
            this.helper.css("zIndex", o.zIndex);
        }

        //Prepare scrolling
        if(this.scrollParent[0] !== this.document[0] && this.scrollParent[0].tagName !== "HTML") {
            this.overflowOffset = this.scrollParent.offset();
        }

        //Call callbacks
        this._trigger("start", event, this._uiHash());

        //Recache the helper size
        if(!this._preserveHelperProportions) {
            this._cacheHelperProportions();
        }


        //Post "activate" events to possible containers
        if( !noActivation ) {
            for ( i = this.containers.length - 1; i >= 0; i-- ) {
                this.containers[ i ]._trigger( "activate", event, this._uiHash( this ) );
            }
        }

        //Prepare possible droppables
        if($.ui.ddmanager) {
            $.ui.ddmanager.current = this;
        }

        if ($.ui.ddmanager && !o.dropBehaviour) {
            $.ui.ddmanager.prepareOffsets(this, event);
        }

        this.dragging = true;

        this.helper.addClass("ui-sortable-helper");
        this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position
        return true;

    },

    _mouseDrag: function(event) {
        var i, item, itemElement, intersection,
            o = this.options,
            scrolled = false;

        //Compute the helpers position
        this.position = this._generatePosition(event);
        this.positionAbs = this._convertPositionTo("absolute");

        if (!this.lastPositionAbs) {
            this.lastPositionAbs = this.positionAbs;
        }

        //Do scrolling
        if(this.options.scroll) {
            if(this.scrollParent[0] !== this.document[0] && this.scrollParent[0].tagName !== "HTML") {

                if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) {
                    this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed;
                } else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity) {
                    this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed;
                }

                if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) {
                    this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed;
                } else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity) {
                    this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed;
                }

            } else {

                if(event.pageY - this.document.scrollTop() < o.scrollSensitivity) {
                    scrolled = this.document.scrollTop(this.document.scrollTop() - o.scrollSpeed);
                } else if(this.window.height() - (event.pageY - this.document.scrollTop()) < o.scrollSensitivity) {
                    scrolled = this.document.scrollTop(this.document.scrollTop() + o.scrollSpeed);
                }

                if(event.pageX - this.document.scrollLeft() < o.scrollSensitivity) {
                    scrolled = this.document.scrollLeft(this.document.scrollLeft() - o.scrollSpeed);
                } else if(this.window.width() - (event.pageX - this.document.scrollLeft()) < o.scrollSensitivity) {
                    scrolled = this.document.scrollLeft(this.document.scrollLeft() + o.scrollSpeed);
                }

            }

            if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) {
                $.ui.ddmanager.prepareOffsets(this, event);
            }
        }

        //Regenerate the absolute position used for position checks
        this.positionAbs = this._convertPositionTo("absolute");

        //Set the helper position
        if(!this.options.axis || this.options.axis !== "y") {
            this.helper[0].style.left = this.position.left+"px";
        }
        if(!this.options.axis || this.options.axis !== "x") {
            this.helper[0].style.top = this.position.top+"px";
        }

        //Rearrange
        for (i = this.items.length - 1; i >= 0; i--) {

            //Cache variables and intersection, continue if no intersection
            item = this.items[i];
            itemElement = item.item[0];
            intersection = this._intersectsWithPointer(item);
            if (!intersection) {
                continue;
            }

            // Only put the placeholder inside the current Container, skip all
            // items from other containers. This works because when moving
            // an item from one container to another the
            // currentContainer is switched before the placeholder is moved.
            //
            // Without this, moving items in "sub-sortables" can cause
            // the placeholder to jitter between the outer and inner container.
            if (item.instance !== this.currentContainer) {
                continue;
            }

            // cannot intersect with itself
            // no useless actions that have been done before
            // no action if the item moved is the parent of the item checked
            if (itemElement !== this.currentItem[0] &&
                this.placeholder[intersection === 1 ? "next" : "prev"]()[0] !== itemElement &&
                !$.contains(this.placeholder[0], itemElement) &&
                (this.options.type === "semi-dynamic" ? !$.contains(this.element[0], itemElement) : true)
            ) {

                this.direction = intersection === 1 ? "down" : "up";

                if (this.options.tolerance === "pointer" || this._intersectsWithSides(item)) {
                    this._rearrange(event, item);
                } else {
                    break;
                }

                this._trigger("change", event, this._uiHash());
                break;
            }
        }

        //Post events to containers
        this._contactContainers(event);

        //Interconnect with droppables
        if($.ui.ddmanager) {
            $.ui.ddmanager.drag(this, event);
        }

        //Call callbacks
        this._trigger("sort", event, this._uiHash());

        this.lastPositionAbs = this.positionAbs;
        return false;

    },

    _mouseStop: function(event, noPropagation) {

        if(!event) {
            return;
        }

        //If we are using droppables, inform the manager about the drop
        if ($.ui.ddmanager && !this.options.dropBehaviour) {
            $.ui.ddmanager.drop(this, event);
        }

        if(this.options.revert) {
            var that = this,
                cur = this.placeholder.offset(),
                axis = this.options.axis,
                animation = {};

            if ( !axis || axis === "x" ) {
                animation.left = cur.left - this.offset.parent.left - this.margins.left + (this.offsetParent[0] === this.document[0].body ? 0 : this.offsetParent[0].scrollLeft);
            }
            if ( !axis || axis === "y" ) {
                animation.top = cur.top - this.offset.parent.top - this.margins.top + (this.offsetParent[0] === this.document[0].body ? 0 : this.offsetParent[0].scrollTop);
            }
            this.reverting = true;
            $(this.helper).animate( animation, parseInt(this.options.revert, 10) || 500, function() {
                that._clear(event);
            });
        } else {
            this._clear(event, noPropagation);
        }

        return false;

    },

    cancel: function() {

        if(this.dragging) {

            this._mouseUp({ target: null });

            if(this.options.helper === "original") {
                this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
            } else {
                this.currentItem.show();
            }

            //Post deactivating events to containers
            for (var i = this.containers.length - 1; i >= 0; i--){
                this.containers[i]._trigger("deactivate", null, this._uiHash(this));
                if(this.containers[i].containerCache.over) {
                    this.containers[i]._trigger("out", null, this._uiHash(this));
                    this.containers[i].containerCache.over = 0;
                }
            }

        }

        if (this.placeholder) {
            //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
            if(this.placeholder[0].parentNode) {
                this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
            }
            if(this.options.helper !== "original" && this.helper && this.helper[0].parentNode) {
                this.helper.remove();
            }

            $.extend(this, {
                helper: null,
                dragging: false,
                reverting: false,
                _noFinalSort: null
            });

            if(this.domPosition.prev) {
                $(this.domPosition.prev).after(this.currentItem);
            } else {
                $(this.domPosition.parent).prepend(this.currentItem);
            }
        }

        return this;

    },

    serialize: function(o) {

        var items = this._getItemsAsjQuery(o && o.connected),
            str = [];
        o = o || {};

        $(items).each(function() {
            var res = ($(o.item || this).attr(o.attribute || "id") || "").match(o.expression || (/(.+)[\-=_](.+)/));
            if (res) {
                str.push((o.key || res[1]+"[]")+"="+(o.key && o.expression ? res[1] : res[2]));
            }
        });

        if(!str.length && o.key) {
            str.push(o.key + "=");
        }

        return str.join("&");

    },

    toArray: function(o) {

        var items = this._getItemsAsjQuery(o && o.connected),
            ret = [];

        o = o || {};

        items.each(function() { ret.push($(o.item || this).attr(o.attribute || "id") || ""); });
        return ret;

    },

    /* Be careful with the following core functions */
    _intersectsWith: function(item) {

        var x1 = this.positionAbs.left,
            x2 = x1 + this.helperProportions.width,
            y1 = this.positionAbs.top,
            y2 = y1 + this.helperProportions.height,
            l = item.left,
            r = l + item.width,
            t = item.top,
            b = t + item.height,
            dyClick = this.offset.click.top,
            dxClick = this.offset.click.left,
            isOverElementHeight = ( this.options.axis === "x" ) || ( ( y1 + dyClick ) > t && ( y1 + dyClick ) < b ),
            isOverElementWidth = ( this.options.axis === "y" ) || ( ( x1 + dxClick ) > l && ( x1 + dxClick ) < r ),
            isOverElement = isOverElementHeight && isOverElementWidth;

        if ( this.options.tolerance === "pointer" ||
            this.options.forcePointerForContainers ||
            (this.options.tolerance !== "pointer" && this.helperProportions[this.floating ? "width" : "height"] > item[this.floating ? "width" : "height"])
        ) {
            return isOverElement;
        } else {

            return (l < x1 + (this.helperProportions.width / 2) && // Right Half
                x2 - (this.helperProportions.width / 2) < r && // Left Half
                t < y1 + (this.helperProportions.height / 2) && // Bottom Half
                y2 - (this.helperProportions.height / 2) < b ); // Top Half

        }
    },

    _intersectsWithPointer: function(item) {

        var isOverElementHeight = (this.options.axis === "x") || this._isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
            isOverElementWidth = (this.options.axis === "y") || this._isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
            isOverElement = isOverElementHeight && isOverElementWidth,
            verticalDirection = this._getDragVerticalDirection(),
            horizontalDirection = this._getDragHorizontalDirection();

        if (!isOverElement) {
            return false;
        }

        return this.floating ?
            ( ((horizontalDirection && horizontalDirection === "right") || verticalDirection === "down") ? 2 : 1 )
            : ( verticalDirection && (verticalDirection === "down" ? 2 : 1) );

    },

    _intersectsWithSides: function(item) {

        var isOverBottomHalf = this._isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
            isOverRightHalf = this._isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width),
            verticalDirection = this._getDragVerticalDirection(),
            horizontalDirection = this._getDragHorizontalDirection();

        if (this.floating && horizontalDirection) {
            return ((horizontalDirection === "right" && isOverRightHalf) || (horizontalDirection === "left" && !isOverRightHalf));
        } else {
            return verticalDirection && ((verticalDirection === "down" && isOverBottomHalf) || (verticalDirection === "up" && !isOverBottomHalf));
        }

    },

    _getDragVerticalDirection: function() {
        var delta = this.positionAbs.top - this.lastPositionAbs.top;
        return delta !== 0 && (delta > 0 ? "down" : "up");
    },

    _getDragHorizontalDirection: function() {
        var delta = this.positionAbs.left - this.lastPositionAbs.left;
        return delta !== 0 && (delta > 0 ? "right" : "left");
    },

    refresh: function(event) {
        this._refreshItems(event);
        this._setHandleClassName();
        this.refreshPositions();
        return this;
    },

    _connectWith: function() {
        var options = this.options;
        return options.connectWith.constructor === String ? [options.connectWith] : options.connectWith;
    },

    _getItemsAsjQuery: function(connected) {

        var i, j, cur, inst,
            items = [],
            queries = [],
            connectWith = this._connectWith();

        if(connectWith && connected) {
            for (i = connectWith.length - 1; i >= 0; i--){
                cur = $(connectWith[i], this.document[0]);
                for ( j = cur.length - 1; j >= 0; j--){
                    inst = $.data(cur[j], this.widgetFullName);
                    if(inst && inst !== this && !inst.options.disabled) {
                        queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not(".ui-sortable-placeholder"), inst]);
                    }
                }
            }
        }

        queries.push([$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element).not(".ui-sortable-helper").not(".ui-sortable-placeholder"), this]);

        function addItems() {
            items.push( this );
        }
        for (i = queries.length - 1; i >= 0; i--){
            queries[i][0].each( addItems );
        }

        return $(items);

    },

    _removeCurrentsFromItems: function() {

        var list = this.currentItem.find(":data(" + this.widgetName + "-item)");

        this.items = $.grep(this.items, function (item) {
            for (var j=0; j < list.length; j++) {
                if(list[j] === item.item[0]) {
                    return false;
                }
            }
            return true;
        });

    },

    _refreshItems: function(event) {

        this.items = [];
        this.containers = [this];

        var i, j, cur, inst, targetData, _queries, item, queriesLength,
            items = this.items,
            queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]],
            connectWith = this._connectWith();

        if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down
            for (i = connectWith.length - 1; i >= 0; i--){
                cur = $(connectWith[i], this.document[0]);
                for (j = cur.length - 1; j >= 0; j--){
                    inst = $.data(cur[j], this.widgetFullName);
                    if(inst && inst !== this && !inst.options.disabled) {
                        queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]);
                        this.containers.push(inst);
                    }
                }
            }
        }

        for (i = queries.length - 1; i >= 0; i--) {
            targetData = queries[i][1];
            _queries = queries[i][0];

            for (j=0, queriesLength = _queries.length; j < queriesLength; j++) {
                item = $(_queries[j]);

                item.data(this.widgetName + "-item", targetData); // Data for target checking (mouse manager)

                items.push({
                    item: item,
                    instance: targetData,
                    width: 0, height: 0,
                    left: 0, top: 0
                });
            }
        }

    },

    refreshPositions: function(fast) {

        // Determine whether items are being displayed horizontally
        this.floating = this.items.length ?
            this.options.axis === "x" || this._isFloating( this.items[ 0 ].item ) :
            false;

        //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
        if(this.offsetParent && this.helper) {
            this.offset.parent = this._getParentOffset();
        }

        var i, item, t, p;

        for (i = this.items.length - 1; i >= 0; i--){
            item = this.items[i];

            //We ignore calculating positions of all connected containers when we're not over them
            if(item.instance !== this.currentContainer && this.currentContainer && item.item[0] !== this.currentItem[0]) {
                continue;
            }

            t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;

            if (!fast) {
                item.width = t.outerWidth();
                item.height = t.outerHeight();
            }

            p = t.offset();
            item.left = p.left;
            item.top = p.top;
        }

        if(this.options.custom && this.options.custom.refreshContainers) {
            this.options.custom.refreshContainers.call(this);
        } else {
            for (i = this.containers.length - 1; i >= 0; i--){
                p = this.containers[i].element.offset();
                this.containers[i].containerCache.left = p.left;
                this.containers[i].containerCache.top = p.top;
                this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
                this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
            }
        }

        return this;
    },

    _createPlaceholder: function(that) {
        that = that || this;
        var className,
            o = that.options;

        if(!o.placeholder || o.placeholder.constructor === String) {
            className = o.placeholder;
            o.placeholder = {
                element: function() {

                    var nodeName = that.currentItem[0].nodeName.toLowerCase(),
                        element = $( "<" + nodeName + ">", that.document[0] )
                            .addClass(className || that.currentItem[0].className+" ui-sortable-placeholder")
                            .removeClass("ui-sortable-helper");

                    if ( nodeName === "tbody" ) {
                        that._createTrPlaceholder(
                            that.currentItem.find( "tr" ).eq( 0 ),
                            $( "<tr>", that.document[ 0 ] ).appendTo( element )
                        );
                    } else if ( nodeName === "tr" ) {
                        that._createTrPlaceholder( that.currentItem, element );
                    } else if ( nodeName === "img" ) {
                        element.attr( "src", that.currentItem.attr( "src" ) );
                    }

                    if ( !className ) {
                        element.css( "visibility", "hidden" );
                    }

                    return element;
                },
                update: function(container, p) {

                    // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that
                    // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified
                    if(className && !o.forcePlaceholderSize) {
                        return;
                    }

                    //If the element doesn't have a actual height by itself (without styles coming from a stylesheet), it receives the inline height from the dragged item
                    if(!p.height()) { p.height(that.currentItem.innerHeight() - parseInt(that.currentItem.css("paddingTop")||0, 10) - parseInt(that.currentItem.css("paddingBottom")||0, 10)); }
                    if(!p.width()) { p.width(that.currentItem.innerWidth() - parseInt(that.currentItem.css("paddingLeft")||0, 10) - parseInt(that.currentItem.css("paddingRight")||0, 10)); }
                }
            };
        }

        //Create the placeholder
        that.placeholder = $(o.placeholder.element.call(that.element, that.currentItem));

        //Append it after the actual current item
        that.currentItem.after(that.placeholder);

        //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
        o.placeholder.update(that, that.placeholder);

    },

    _createTrPlaceholder: function( sourceTr, targetTr ) {
        var that = this;

        sourceTr.children().each(function() {
            $( "<td>&#160;</td>", that.document[ 0 ] )
                .attr( "colspan", $( this ).attr( "colspan" ) || 1 )
                .appendTo( targetTr );
        });
    },

    _contactContainers: function(event) {
        var i, j, dist, itemWithLeastDistance, posProperty, sizeProperty, cur, nearBottom, floating, axis,
            innermostContainer = null,
            innermostIndex = null;

        // get innermost container that intersects with item
        for (i = this.containers.length - 1; i >= 0; i--) {

            // never consider a container that's located within the item itself
            if($.contains(this.currentItem[0], this.containers[i].element[0])) {
                continue;
            }

            if(this._intersectsWith(this.containers[i].containerCache)) {

                // if we've already found a container and it's more "inner" than this, then continue
                if(innermostContainer && $.contains(this.containers[i].element[0], innermostContainer.element[0])) {
                    continue;
                }

                innermostContainer = this.containers[i];
                innermostIndex = i;

            } else {
                // container doesn't intersect. trigger "out" event if necessary
                if(this.containers[i].containerCache.over) {
                    this.containers[i]._trigger("out", event, this._uiHash(this));
                    this.containers[i].containerCache.over = 0;
                }
            }

        }

        // if no intersecting containers found, return
        if(!innermostContainer) {
            return;
        }

        // move the item into the container if it's not there already
        if(this.containers.length === 1) {
            if (!this.containers[innermostIndex].containerCache.over) {
                this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
                this.containers[innermostIndex].containerCache.over = 1;
            }
        } else {

            //When entering a new container, we will find the item with the least distance and append our item near it
            dist = 10000;
            itemWithLeastDistance = null;
            floating = innermostContainer.floating || this._isFloating(this.currentItem);
            posProperty = floating ? "left" : "top";
            sizeProperty = floating ? "width" : "height";
            axis = floating ? "clientX" : "clientY";

            for (j = this.items.length - 1; j >= 0; j--) {
                if(!$.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) {
                    continue;
                }
                if(this.items[j].item[0] === this.currentItem[0]) {
                    continue;
                }

                cur = this.items[j].item.offset()[posProperty];
                nearBottom = false;
                if ( event[ axis ] - cur > this.items[ j ][ sizeProperty ] / 2 ) {
                    nearBottom = true;
                }

                if ( Math.abs( event[ axis ] - cur ) < dist ) {
                    dist = Math.abs( event[ axis ] - cur );
                    itemWithLeastDistance = this.items[ j ];
                    this.direction = nearBottom ? "up": "down";
                }
            }

            //Check if dropOnEmpty is enabled
            if(!itemWithLeastDistance && !this.options.dropOnEmpty) {
                return;
            }

            if(this.currentContainer === this.containers[innermostIndex]) {
                if ( !this.currentContainer.containerCache.over ) {
                    this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash() );
                    this.currentContainer.containerCache.over = 1;
                }
                return;
            }

            itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true);
            this._trigger("change", event, this._uiHash());
            this.containers[innermostIndex]._trigger("change", event, this._uiHash(this));
            this.currentContainer = this.containers[innermostIndex];

            //Update the placeholder
            this.options.placeholder.update(this.currentContainer, this.placeholder);

            this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
            this.containers[innermostIndex].containerCache.over = 1;
        }


    },

    _createHelper: function(event) {

        var o = this.options,
            helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper === "clone" ? this.currentItem.clone() : this.currentItem);

        //Add the helper to the DOM if that didn't happen already
        if(!helper.parents("body").length) {
            $(o.appendTo !== "parent" ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
        }

        if(helper[0] === this.currentItem[0]) {
            this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
        }

        if(!helper[0].style.width || o.forceHelperSize) {
            helper.width(this.currentItem.width());
        }
        if(!helper[0].style.height || o.forceHelperSize) {
            helper.height(this.currentItem.height());
        }

        return helper;

    },

    _adjustOffsetFromHelper: function(obj) {
        if (typeof obj === "string") {
            obj = obj.split(" ");
        }
        if ($.isArray(obj)) {
            obj = {left: +obj[0], top: +obj[1] || 0};
        }
        if ("left" in obj) {
            this.offset.click.left = obj.left + this.margins.left;
        }
        if ("right" in obj) {
            this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
        }
        if ("top" in obj) {
            this.offset.click.top = obj.top + this.margins.top;
        }
        if ("bottom" in obj) {
            this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
        }
    },

    _getParentOffset: function() {


        //Get the offsetParent and cache its position
        this.offsetParent = this.helper.offsetParent();
        var po = this.offsetParent.offset();

        // This is a special case where we need to modify a offset calculated on start, since the following happened:
        // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
        // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
        //    the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
        if(this.cssPosition === "absolute" && this.scrollParent[0] !== this.document[0] && $.contains(this.scrollParent[0], this.offsetParent[0])) {
            po.left += this.scrollParent.scrollLeft();
            po.top += this.scrollParent.scrollTop();
        }

        // This needs to be actually done for all browsers, since pageX/pageY includes this information
        // with an ugly IE fix
        if( this.offsetParent[0] === this.document[0].body || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() === "html" && $.ui.ie)) {
            po = { top: 0, left: 0 };
        }

        return {
            top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
            left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
        };

    },

    _getRelativeOffset: function() {

        if(this.cssPosition === "relative") {
            var p = this.currentItem.position();
            return {
                top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
                left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
            };
        } else {
            return { top: 0, left: 0 };
        }

    },

    _cacheMargins: function() {
        this.margins = {
            left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
            top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
        };
    },

    _cacheHelperProportions: function() {
        this.helperProportions = {
            width: this.helper.outerWidth(),
            height: this.helper.outerHeight()
        };
    },

    _setContainment: function() {

        var ce, co, over,
            o = this.options;
        if(o.containment === "parent") {
            o.containment = this.helper[0].parentNode;
        }
        if(o.containment === "document" || o.containment === "window") {
            this.containment = [
                0 - this.offset.relative.left - this.offset.parent.left,
                0 - this.offset.relative.top - this.offset.parent.top,
                o.containment === "document" ? this.document.width() : this.window.width() - this.helperProportions.width - this.margins.left,
                (o.containment === "document" ? this.document.width() : this.window.height() || this.document[0].body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
            ];
        }

        if(!(/^(document|window|parent)$/).test(o.containment)) {
            ce = $(o.containment)[0];
            co = $(o.containment).offset();
            over = ($(ce).css("overflow") !== "hidden");

            this.containment = [
                co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
                co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
                co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left,
                co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top
            ];
        }

    },

    _convertPositionTo: function(d, pos) {

        if(!pos) {
            pos = this.position;
        }
        var mod = d === "absolute" ? 1 : -1,
            scroll = this.cssPosition === "absolute" && !(this.scrollParent[0] !== this.document[0] && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent,
            scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);

        return {
            top: (
                pos.top    +                                                                // The absolute mouse position
                this.offset.relative.top * mod +                                        // Only for relative positioned nodes: Relative offset from element to offset parent
                this.offset.parent.top * mod -                                            // The offsetParent's offset without borders (offset + border)
                ( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
            ),
            left: (
                pos.left +                                                                // The absolute mouse position
                this.offset.relative.left * mod +                                        // Only for relative positioned nodes: Relative offset from element to offset parent
                this.offset.parent.left * mod    -                                        // The offsetParent's offset without borders (offset + border)
                ( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
            )
        };

    },

    _generatePosition: function(event) {

        var top, left,
            o = this.options,
            pageX = event.pageX,
            pageY = event.pageY,
            scroll = this.cssPosition === "absolute" && !(this.scrollParent[0] !== this.document[0] && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);

        // This is another very weird special case that only happens for relative elements:
        // 1. If the css position is relative
        // 2. and the scroll parent is the document or similar to the offset parent
        // we have to refresh the relative offset during the scroll so there are no jumps
        if(this.cssPosition === "relative" && !(this.scrollParent[0] !== this.document[0] && this.scrollParent[0] !== this.offsetParent[0])) {
            this.offset.relative = this._getRelativeOffset();
        }

        /*
         * - Position constraining -
         * Constrain the position to a mix of grid, containment.
         */

        if(this.originalPosition) { //If we are not dragging yet, we won't check for options

            if(this.containment) {
                if(event.pageX - this.offset.click.left < this.containment[0]) {
                    pageX = this.containment[0] + this.offset.click.left;
                }
                if(event.pageY - this.offset.click.top < this.containment[1]) {
                    pageY = this.containment[1] + this.offset.click.top;
                }
                if(event.pageX - this.offset.click.left > this.containment[2]) {
                    pageX = this.containment[2] + this.offset.click.left;
                }
                if(event.pageY - this.offset.click.top > this.containment[3]) {
                    pageY = this.containment[3] + this.offset.click.top;
                }
            }

            if(o.grid) {
                top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
                pageY = this.containment ? ( (top - this.offset.click.top >= this.containment[1] && top - this.offset.click.top <= this.containment[3]) ? top : ((top - this.offset.click.top >= this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;

                left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
                pageX = this.containment ? ( (left - this.offset.click.left >= this.containment[0] && left - this.offset.click.left <= this.containment[2]) ? left : ((left - this.offset.click.left >= this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
            }

        }

        return {
            top: (
                pageY -                                                                // The absolute mouse position
                this.offset.click.top -                                                    // Click offset (relative to the element)
                this.offset.relative.top    -                                            // Only for relative positioned nodes: Relative offset from element to offset parent
                this.offset.parent.top +                                                // The offsetParent's offset without borders (offset + border)
                ( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
            ),
            left: (
                pageX -                                                                // The absolute mouse position
                this.offset.click.left -                                                // Click offset (relative to the element)
                this.offset.relative.left    -                                            // Only for relative positioned nodes: Relative offset from element to offset parent
                this.offset.parent.left +                                                // The offsetParent's offset without borders (offset + border)
                ( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
            )
        };

    },

    _rearrange: function(event, i, a, hardRefresh) {

        a ? a[0].appendChild(this.placeholder[0]) : i.item[0].parentNode.insertBefore(this.placeholder[0], (this.direction === "down" ? i.item[0] : i.item[0].nextSibling));

        //Various things done here to improve the performance:
        // 1. we create a setTimeout, that calls refreshPositions
        // 2. on the instance, we have a counter variable, that get's higher after every append
        // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
        // 4. this lets only the last addition to the timeout stack through
        this.counter = this.counter ? ++this.counter : 1;
        var counter = this.counter;

        this._delay(function() {
            if(counter === this.counter) {
                this.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
            }
        });

    },

    _clear: function(event, noPropagation) {

        this.reverting = false;
        // We delay all events that have to be triggered to after the point where the placeholder has been removed and
        // everything else normalized again
        var i,
            delayedTriggers = [];

        // We first have to update the dom position of the actual currentItem
        // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088)
        if(!this._noFinalSort && this.currentItem.parent().length) {
            this.placeholder.before(this.currentItem);
        }
        this._noFinalSort = null;

        if(this.helper[0] === this.currentItem[0]) {
            for(i in this._storedCSS) {
                if(this._storedCSS[i] === "auto" || this._storedCSS[i] === "static") {
                    this._storedCSS[i] = "";
                }
            }
            this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
        } else {
            this.currentItem.show();
        }

        if(this.fromOutside && !noPropagation) {
            delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); });
        }
        if((this.fromOutside || this.domPosition.prev !== this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent !== this.currentItem.parent()[0]) && !noPropagation) {
            delayedTriggers.push(function(event) { this._trigger("update", event, this._uiHash()); }); //Trigger update callback if the DOM position has changed
        }

        // Check if the items Container has Changed and trigger appropriate
        // events.
        if (this !== this.currentContainer) {
            if(!noPropagation) {
                delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
                delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); };  }).call(this, this.currentContainer));
                delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this));  }; }).call(this, this.currentContainer));
            }
        }


        //Post events to containers
        function delayEvent( type, instance, container ) {
            return function( event ) {
                container._trigger( type, event, instance._uiHash( instance ) );
            };
        }
        for (i = this.containers.length - 1; i >= 0; i--){
            if (!noPropagation) {
                delayedTriggers.push( delayEvent( "deactivate", this, this.containers[ i ] ) );
            }
            if(this.containers[i].containerCache.over) {
                delayedTriggers.push( delayEvent( "out", this, this.containers[ i ] ) );
                this.containers[i].containerCache.over = 0;
            }
        }

        //Do what was originally in plugins
        if ( this.storedCursor ) {
            this.document.find( "body" ).css( "cursor", this.storedCursor );
            this.storedStylesheet.remove();
        }
        if(this._storedOpacity) {
            this.helper.css("opacity", this._storedOpacity);
        }
        if(this._storedZIndex) {
            this.helper.css("zIndex", this._storedZIndex === "auto" ? "" : this._storedZIndex);
        }

        this.dragging = false;

        if(!noPropagation) {
            this._trigger("beforeStop", event, this._uiHash());
        }

        //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
        this.placeholder[0].parentNode.removeChild(this.placeholder[0]);

        if ( !this.cancelHelperRemoval ) {
            if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) {
                this.helper.remove();
            }
            this.helper = null;
        }

        if(!noPropagation) {
            for (i=0; i < delayedTriggers.length; i++) {
                delayedTriggers[i].call(this, event);
            } //Trigger all delayed events
            this._trigger("stop", event, this._uiHash());
        }

        this.fromOutside = false;
        return !this.cancelHelperRemoval;

    },

    _trigger: function() {
        if ($.Widget.prototype._trigger.apply(this, arguments) === false) {
            this.cancel();
        }
    },

    _uiHash: function(_inst) {
        var inst = _inst || this;
        return {
            helper: inst.helper,
            placeholder: inst.placeholder || $([]),
            position: inst.position,
            originalPosition: inst.originalPosition,
            offset: inst.positionAbs,
            item: inst.currentItem,
            sender: _inst ? _inst.element : null
        };
    }

});

}));