Source: ui/domWidget.js

var widget = require('./widget');
var inherit = require('../inherit');
var registerWidget = require('../registry').registerWidget;

/**
 * Create a new instance of class domWidget.
 *
 * @class
 * @alias geo.gui.domWidget
 * @extends geo.gui.widget
 * @param {object} arg
 * @param {geo.widget} [parent] A parent widget for this widget.
 * @param {string} [el='div'] The type of DOM element to create.
 * @returns {geo.domWidget}
 */
var domWidget = function (arg) {
  'use strict';
  if (!(this instanceof domWidget)) {
    return new domWidget(arg);
  }

  widget.call(this, arg);

  var m_this = this,
      m_default_canvas = 'div';

  /**
   * Initializes DOM Widget.
   * Sets the canvas for the widget, does parent/child relationship management,
   * appends it to it's parent and handles any positioning logic.
   *
   * @returns {this}
   */
  this._init = function () {
    if (arg.hasOwnProperty('parent')) {
      arg.parent.addChild(m_this);
    }

    m_this._createCanvas();
    m_this._appendCanvasToParent();

    m_this.canvas().addEventListener('mousedown', function (e) {
      e.stopPropagation();
    });

    m_this.reposition();
    return m_this;
  };

  /**
   * Creates the widget canvas.  This is a DOM element (`arg.el` or a div).
   */
  this._createCanvas = function () {
    m_this.canvas(document.createElement(arg.el || m_default_canvas));
  };

  return this;
};

inherit(domWidget, widget);

registerWidget('dom', 'dom', domWidget);
module.exports = domWidget;