/**
 * Iframe.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

import Widget from './Widget';
import Delay from 'tinymce/core/api/util/Delay';

/*jshint scripturl:true */

/**
 * This class creates an iframe.
 *
 * @setting {String} url Url to open in the iframe.
 *
 * @-x-less Iframe.less
 * @class tinymce.ui.Iframe
 * @extends tinymce.ui.Widget
 */

export default Widget.extend({
  /**
   * Renders the control as a HTML string.
   *
   * @method renderHtml
   * @return {String} HTML representing the control.
   */
  renderHtml () {
    const self = this;

    self.classes.add('iframe');
    self.canFocus = false;

    /*eslint no-script-url:0 */
    return (
      '<iframe id="' + self._id + '" class="' + self.classes + '" tabindex="-1" src="' +
      (self.settings.url || 'javascript:\'\'') + '" frameborder="0"></iframe>'
    );
  },

  /**
   * Setter for the iframe source.
   *
   * @method src
   * @param {String} src Source URL for iframe.
   */
  src (src) {
    this.getEl().src = src;
  },

  /**
   * Inner HTML for the iframe.
   *
   * @method html
   * @param {String} html HTML string to set as HTML inside the iframe.
   * @param {function} callback Optional callback to execute when the iframe body is filled with contents.
   * @return {tinymce.ui.Iframe} Current iframe control.
   */
  html (html, callback) {
    const self = this, body = this.getEl().contentWindow.document.body;

    // Wait for iframe to initialize IE 10 takes time
    if (!body) {
      Delay.setTimeout(function () {
        self.html(html);
      });
    } else {
      body.innerHTML = html;

      if (callback) {
        callback();
      }
    }

    return this;
  }
});