define(['jquery', 'underscore', 'requtils', 'renderer/nodebutton'], function ($, _, requtils, NodeButton) {

    'use strict';

    var Utils = requtils.getUtils();

    /* NodeLinkButton Begin */

    //var NodeLinkButton = Renderer.NodeLinkButton = Utils.inherit(Renderer._NodeButton);

    var NodeLinkButton = Utils.inherit(NodeButton);

    _(NodeLinkButton.prototype).extend({

        _init: function() {

            this.type = "Node-link-button";

            this.lastSectorInner = 0;

            this.startAngle = 90;

            this.endAngle = 180;

            this.imageName = "link";

            this.text = "Link to another node";

        },

        mousedown: function(_event, _isTouch) {

            if (this.renderer.isEditable()) {

                var _off = this.renderer.canvas_$.offset(),

                _point = new paper.Point([

                                          _event.pageX - _off.left,

                                          _event.pageY - _off.top

                                          ]);

                this.renderer.click_target = null;

                this.renderer.removeRepresentationsOfType("editor");

                this.renderer.addTempEdge(this.source_representation, _point);

            }

        }

    });

    /* NodeLinkButton End */

    return NodeLinkButton;

});