function MatDialog(_overlay, _injector, _location, _defaultOptions, _scrollStrategy, _parentDialog, _overlayContainer) {
var _this = this;
this._overlay = _overlay;
this._injector = _injector;
this._location = _location;
this._defaultOptions = _defaultOptions;
this._scrollStrategy = _scrollStrategy;
this._parentDialog = _parentDialog;
this._overlayContainer = _overlayContainer;
this._openDialogsAtThisLevel = [];
this._afterAllClosedAtThisLevel = new Subject();
this._afterOpenAtThisLevel = new Subject();
this._ariaHiddenElements = new Map();
/**
* Stream that emits when all open dialog have finished closing.
* Will emit on subscribe if there are no open dialogs to begin with.
*/
this.afterAllClosed = defer(function () {
return _this.openDialogs.length ?
_this._afterAllClosed :
_this._afterAllClosed.pipe(startWith(undefined));
});
}
/**
* @param {?} _overlay
* @param {?} _injector
* @param {?} location
* @param {?} _scrollStrategy
* @param {?} _parentDialog
*/
function MatDialog(_overlay, _injector, location, _scrollStrategy, _parentDialog) {
var _this = this;
this._overlay = _overlay;
this._injector = _injector;
this._scrollStrategy = _scrollStrategy;
this._parentDialog = _parentDialog;
this._openDialogsAtThisLevel = [];
this._afterAllClosedAtThisLevel = new Subject();
this._afterOpenAtThisLevel = new Subject();
this._boundKeydown = this._handleKeydown.bind(this);
/**
* Stream that emits when all open dialog have finished closing.
* Will emit on subscribe if there are no open dialogs to begin with.
*/
this.afterAllClosed = defer(function () { return _this.openDialogs.length ?
_this._afterAllClosed :
startWith.call(_this._afterAllClosed, undefined); });
// Close all of the dialogs when the user goes forwards/backwards in history or when the
// location hash changes. Note that this usually doesn't include clicking on links (unless
// the user is using the `HashLocationStrategy`).
if (!_parentDialog && location) {
location.subscribe(function () { return _this.closeAll(); });
}
}