/*	Copyright (c) 2017 Jean-Marc VIGLINO, 
	released under the CeCILL-B license (French BSD license)
	(http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt).
*/

import ol_control_Control from 'ol/control/Control.js'
import ol_ext_element from '../util/element.js';

/** Control overlay for OL3
 * The overlay control is a control that display an overlay over the map
 *
 * @constructor
 * @extends {ol_control_Control}
 * @fire change:visible
 * @param {Object=} options Control options.
 *  @param {string} className class of the control
 *  @param {boolean} options.closeBox add a close button
 *  @param {boolean} options.hideOnClick close dialog when click
 */
var ol_control_Notification = class olcontrolNotification extends ol_control_Control {
  constructor(options) {
    options = options || {};
    var element = document.createElement('DIV');
    super({
      element: element,
      target: options.target
    });

    this.contentElement = ol_ext_element.create('DIV', {
      click: function () {
        if (this.get('hideOnClick'))
          this.hide();
      }.bind(this),
      parent: element
    });

    var classNames = (options.className || "") + " ol-notification";
    if (!options.target) {
      classNames += " ol-unselectable ol-control ol-collapsed";
    }
    element.setAttribute('class', classNames);

    this.set('closeBox', options.closeBox);
    this.set('hideOnClick', options.hideOnClick);
  }
  /**
   * Display a notification on the map
   * @param {string|node|undefined} what the notification to show, default get the last one
   * @param {number} [duration=3000] duration in ms, if -1 never hide
   */
  show(what, duration) {
    var self = this;
    var elt = this.element;
    if (what) {
      if (what instanceof Node) {
        this.contentElement.innerHTML = '';
        this.contentElement.appendChild(what);
      } else {
        this.contentElement.innerHTML = what;
      }
      if (this.get('closeBox')) {
        this.contentElement.classList.add('ol-close');
        ol_ext_element.create('SPAN', {
          className: 'closeBox',
          click: function () { this.hide(); }.bind(this),
          parent: this.contentElement
        });
      } else {
        this.contentElement.classList.remove('ol-close');
      }
    }

    if (this._listener) {
      clearTimeout(this._listener);
      this._listener = null;
    }
    elt.classList.add('ol-collapsed');
    this._listener = setTimeout(function () {
      elt.classList.remove('ol-collapsed');
      if (!duration || duration >= 0) {
        self._listener = setTimeout(function () {
          elt.classList.add('ol-collapsed');
          self._listener = null;
        }, duration || 3000);
      } else {
        self._listener = null;
      }
    }, 100);
  }
  /**
   * Remove a notification on the map
   */
  hide() {
    if (this._listener) {
      clearTimeout(this._listener);
      this._listener = null;
    }
    this.element.classList.add('ol-collapsed');
  }
  /**
   * Toggle a notification on the map
   * @param {number} [duration=3000] duration in ms
   */
  toggle(duration) {
    if (this.element.classList.contains('ol-collapsed')) {
      this.show(null, duration);
    } else {
      this.hide();
    }
  }
}

export default ol_control_Notification