'use strict';

exports.__esModule = true;

var _dom = require('./utils/dom');

var Dom = _interopRequireWildcard(_dom);

var _fn = require('./utils/fn');

var Fn = _interopRequireWildcard(_fn);

var _component = require('./component');

var _component2 = _interopRequireDefault(_component);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj['default'] = obj; return newObj; } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * @file modal-dialog.js
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */


var MODAL_CLASS_NAME = 'vjs-modal-dialog';
var ESC = 27;

/**
 * The `ModalDialog` displays over the video and its controls, which blocks
 * interaction with the player until it is closed.
 *
 * Modal dialogs include a "Close" button and will close when that button
 * is activated - or when ESC is pressed anywhere.
 *
 * @extends Component
 */

var ModalDialog = function (_Component) {
  _inherits(ModalDialog, _Component);

  /**
   * Create an instance of this class.
   *
   * @param {Player} player
   *        The `Player` that this class should be attached to.
   *
   * @param {Object} [options]
   *        The key/value store of player options.
   *
   * @param {Mixed} [options.content=undefined]
   *        Provide customized content for this modal.
   *
   * @param {string} [options.description]
   *        A text description for the modal, primarily for accessibility.
   *
   * @param {boolean} [options.fillAlways=false]
   *        Normally, modals are automatically filled only the first time
   *        they open. This tells the modal to refresh its content
   *        every time it opens.
   *
   * @param {string} [options.label]
   *        A text label for the modal, primarily for accessibility.
   *
   * @param {boolean} [options.temporary=true]
   *        If `true`, the modal can only be opened once; it will be
   *        disposed as soon as it's closed.
   *
   * @param {boolean} [options.uncloseable=false]
   *        If `true`, the user will not be able to close the modal
   *        through the UI in the normal ways. Programmatic closing is
   *        still possible.
   */
  function ModalDialog(player, options) {
    _classCallCheck(this, ModalDialog);

    var _this = _possibleConstructorReturn(this, _Component.call(this, player, options));

    _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;

    _this.closeable(!_this.options_.uncloseable);
    _this.content(_this.options_.content);

    // Make sure the contentEl is defined AFTER any children are initialized
    // because we only want the contents of the modal in the contentEl
    // (not the UI elements like the close button).
    _this.contentEl_ = Dom.createEl('div', {
      className: MODAL_CLASS_NAME + '-content'
    }, {
      role: 'document'
    });

    _this.descEl_ = Dom.createEl('p', {
      className: MODAL_CLASS_NAME + '-description vjs-offscreen',
      id: _this.el().getAttribute('aria-describedby')
    });

    Dom.textContent(_this.descEl_, _this.description());
    _this.el_.appendChild(_this.descEl_);
    _this.el_.appendChild(_this.contentEl_);
    return _this;
  }

  /**
   * Create the `ModalDialog`'s DOM element
   *
   * @return {Element}
   *         The DOM element that gets created.
   */


  ModalDialog.prototype.createEl = function createEl() {
    return _Component.prototype.createEl.call(this, 'div', {
      className: this.buildCSSClass(),
      tabIndex: -1
    }, {
      'aria-describedby': this.id() + '_description',
      'aria-hidden': 'true',
      'aria-label': this.label(),
      'role': 'dialog'
    });
  };

  /**
   * Builds the default DOM `className`.
   *
   * @return {string}
   *         The DOM `className` for this object.
   */


  ModalDialog.prototype.buildCSSClass = function buildCSSClass() {
    return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);
  };

  /**
   * Handles `keydown` events on the document, looking for ESC, which closes
   * the modal.
   *
   * @param {EventTarget~Event} e
   *        The keypress that triggered this event.
   *
   * @listens keydown
   */


  ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {
    if (e.which === ESC && this.closeable()) {
      this.close();
    }
  };

  /**
   * Returns the label string for this modal. Primarily used for accessibility.
   *
   * @return {string}
   *         the localized or raw label of this modal.
   */


  ModalDialog.prototype.label = function label() {
    return this.options_.label || this.localize('Modal Window');
  };

  /**
   * Returns the description string for this modal. Primarily used for
   * accessibility.
   *
   * @return {string}
   *         The localized or raw description of this modal.
   */


  ModalDialog.prototype.description = function description() {
    var desc = this.options_.description || this.localize('This is a modal window.');

    // Append a universal closeability message if the modal is closeable.
    if (this.closeable()) {
      desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
    }

    return desc;
  };

  /**
   * Opens the modal.
   *
   * @fires ModalDialog#beforemodalopen
   * @fires ModalDialog#modalopen
   *
   * @return {ModalDialog}
   *         Returns itself; method can be chained.
   */


  ModalDialog.prototype.open = function open() {
    if (!this.opened_) {
      var player = this.player();

      /**
       * Fired just before a `ModalDialog` is opened.
       *
       * @event ModalDialog#beforemodalopen
       * @type {EventTarget~Event}
       */
      this.trigger('beforemodalopen');
      this.opened_ = true;

      // Fill content if the modal has never opened before and
      // never been filled.
      if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
        this.fill();
      }

      // If the player was playing, pause it and take note of its previously
      // playing state.
      this.wasPlaying_ = !player.paused();

      if (this.options_.pauseOnOpen && this.wasPlaying_) {
        player.pause();
      }

      if (this.closeable()) {
        this.on(this.el_.ownerDocument, 'keydown', Fn.bind(this, this.handleKeyPress));
      }

      player.controls(false);
      this.show();
      this.el().setAttribute('aria-hidden', 'false');

      /**
       * Fired just after a `ModalDialog` is opened.
       *
       * @event ModalDialog#modalopen
       * @type {EventTarget~Event}
       */
      this.trigger('modalopen');
      this.hasBeenOpened_ = true;
    }
    return this;
  };

  /**
   * If the `ModalDialog` is currently open or closed.
   *
   * @param  {boolean} [value]
   *         If given, it will open (`true`) or close (`false`) the modal.
   *
   * @return {boolean}
   *         the current open state of the modaldialog
   */


  ModalDialog.prototype.opened = function opened(value) {
    if (typeof value === 'boolean') {
      this[value ? 'open' : 'close']();
    }
    return this.opened_;
  };

  /**
   * Closes the modal, does nothing if the `ModalDialog` is
   * not open.
   *
   * @fires ModalDialog#beforemodalclose
   * @fires ModalDialog#modalclose
   *
   * @return {ModalDialog}
   *         Returns itself; method can be chained.
   */


  ModalDialog.prototype.close = function close() {
    if (this.opened_) {
      var player = this.player();

      /**
       * Fired just before a `ModalDialog` is closed.
       *
       * @event ModalDialog#beforemodalclose
       * @type {EventTarget~Event}
       */
      this.trigger('beforemodalclose');
      this.opened_ = false;

      if (this.wasPlaying_ && this.options_.pauseOnOpen) {
        player.play();
      }

      if (this.closeable()) {
        this.off(this.el_.ownerDocument, 'keydown', Fn.bind(this, this.handleKeyPress));
      }

      player.controls(true);
      this.hide();
      this.el().setAttribute('aria-hidden', 'true');

      /**
       * Fired just after a `ModalDialog` is closed.
       *
       * @event ModalDialog#modalclose
       * @type {EventTarget~Event}
       */
      this.trigger('modalclose');

      if (this.options_.temporary) {
        this.dispose();
      }
    }
    return this;
  };

  /**
   * Check to see if the `ModalDialog` is closeable via the UI.
   *
   * @param  {boolean} [value]
   *         If given as a boolean, it will set the `closeable` option.
   *
   * @return {boolean}
   *         Returns the final value of the closable option.
   */


  ModalDialog.prototype.closeable = function closeable(value) {
    if (typeof value === 'boolean') {
      var closeable = this.closeable_ = !!value;
      var close = this.getChild('closeButton');

      // If this is being made closeable and has no close button, add one.
      if (closeable && !close) {

        // The close button should be a child of the modal - not its
        // content element, so temporarily change the content element.
        var temp = this.contentEl_;

        this.contentEl_ = this.el_;
        close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });
        this.contentEl_ = temp;
        this.on(close, 'close', this.close);
      }

      // If this is being made uncloseable and has a close button, remove it.
      if (!closeable && close) {
        this.off(close, 'close', this.close);
        this.removeChild(close);
        close.dispose();
      }
    }
    return this.closeable_;
  };

  /**
   * Fill the modal's content element with the modal's "content" option.
   * The content element will be emptied before this change takes place.
   *
   * @return {ModalDialog}
   *         Returns itself; method can be chained.
   */


  ModalDialog.prototype.fill = function fill() {
    return this.fillWith(this.content());
  };

  /**
   * Fill the modal's content element with arbitrary content.
   * The content element will be emptied before this change takes place.
   *
   * @fires ModalDialog#beforemodalfill
   * @fires ModalDialog#modalfill
   *
   * @param  {Mixed} [content]
   *         The same rules apply to this as apply to the `content` option.
   *
   * @return {ModalDialog}
   *         Returns itself; method can be chained.
   */


  ModalDialog.prototype.fillWith = function fillWith(content) {
    var contentEl = this.contentEl();
    var parentEl = contentEl.parentNode;
    var nextSiblingEl = contentEl.nextSibling;

    /**
     * Fired just before a `ModalDialog` is filled with content.
     *
     * @event ModalDialog#beforemodalfill
     * @type {EventTarget~Event}
     */
    this.trigger('beforemodalfill');
    this.hasBeenFilled_ = true;

    // Detach the content element from the DOM before performing
    // manipulation to avoid modifying the live DOM multiple times.
    parentEl.removeChild(contentEl);
    this.empty();
    Dom.insertContent(contentEl, content);
    /**
     * Fired just after a `ModalDialog` is filled with content.
     *
     * @event ModalDialog#modalfill
     * @type {EventTarget~Event}
     */
    this.trigger('modalfill');

    // Re-inject the re-filled content element.
    if (nextSiblingEl) {
      parentEl.insertBefore(contentEl, nextSiblingEl);
    } else {
      parentEl.appendChild(contentEl);
    }

    return this;
  };

  /**
   * Empties the content element. This happens anytime the modal is filled.
   *
   * @fires ModalDialog#beforemodalempty
   * @fires ModalDialog#modalempty
   *
   * @return {ModalDialog}
   *         Returns itself; method can be chained.
   */


  ModalDialog.prototype.empty = function empty() {
    /**
     * Fired just before a `ModalDialog` is emptied.
     *
     * @event ModalDialog#beforemodalempty
     * @type {EventTarget~Event}
     */
    this.trigger('beforemodalempty');
    Dom.emptyEl(this.contentEl());

    /**
     * Fired just after a `ModalDialog` is emptied.
     *
     * @event ModalDialog#modalempty
     * @type {EventTarget~Event}
     */
    this.trigger('modalempty');
    return this;
  };

  /**
   * Gets or sets the modal content, which gets normalized before being
   * rendered into the DOM.
   *
   * This does not update the DOM or fill the modal, but it is called during
   * that process.
   *
   * @param  {Mixed} [value]
   *         If defined, sets the internal content value to be used on the
   *         next call(s) to `fill`. This value is normalized before being
   *         inserted. To "clear" the internal content value, pass `null`.
   *
   * @return {Mixed}
   *         The current content of the modal dialog
   */


  ModalDialog.prototype.content = function content(value) {
    if (typeof value !== 'undefined') {
      this.content_ = value;
    }
    return this.content_;
  };

  return ModalDialog;
}(_component2['default']);

/**
 * Default options for `ModalDialog` default options.
 *
 * @type {Object}
 * @private
 */


ModalDialog.prototype.options_ = {
  pauseOnOpen: true,
  temporary: true
};

_component2['default'].registerComponent('ModalDialog', ModalDialog);
exports['default'] = ModalDialog;