Bloom.web.controllers.AddOrChangePageApi.HandleChangeLayout C# (CSharp) Method

        private void HandleChangeLayout(ApiRequest request)
        {
            var templatePage = GetPageTemplate(request);
            if (templatePage != null)
            {
                var pageToChange = /*PageChangingLayout ??*/ _pageSelection.CurrentSelection;
                var book = _pageSelection.CurrentSelection.Book;
                book.UpdatePageToTemplate(book.OurHtmlDom, templatePage.GetDivNodeForThisPage(), pageToChange.Id);
                // The Page objects are cached in the page list and may be used if we issue another
                // change layout command. We must update their lineage so the right "current layout"
                // will be shown if the user changes the layout of the same page again.
                var pageChanged = pageToChange as Page;
                if (pageChanged != null)
                    pageChanged.UpdateLineage(new[] { templatePage.Id });

                _pageRefreshEvent.Raise(PageRefreshEvent.SaveBehavior.JustRedisplay);
                request.Succeeded();
            }
        }