Bloom.Book.Book.InsertPageAfter C# (CSharp) Method

        public void InsertPageAfter(IPage pageBefore, IPage templatePage)
        {
            Guard.Against(Type != BookType.Publication, "Tried to edit a non-editable book.");

            ClearPagesCache();

            if(templatePage.Book !=null) // will be null in some unit tests that are unconcerned with stylesheets
                HtmlDom.AddStylesheetFromAnotherBook(templatePage.Book.OurHtmlDom, OurHtmlDom);

            XmlDocument dom = OurHtmlDom.RawDom;
            var templatePageDiv = templatePage.GetDivNodeForThisPage();
            var newPageDiv = dom.ImportNode(templatePageDiv, true) as XmlElement;

            BookStarter.SetupIdAndLineage(templatePageDiv, newPageDiv);
            BookStarter.SetupPage(newPageDiv, _collectionSettings, _bookData.MultilingualContentLanguage2, _bookData.MultilingualContentLanguage3);//, LockedExceptForTranslation);
            SizeAndOrientation.UpdatePageSizeAndOrientationClasses(newPageDiv, GetLayout());
            newPageDiv.RemoveAttribute("title"); //titles are just for templates [Review: that's not true for front matter pages, but at the moment you can't insert those, so this is ok]C:\dev\Bloom\src\BloomExe\StyleSheetService.cs

            var elementOfPageBefore = FindPageDiv(pageBefore);
            elementOfPageBefore.ParentNode.InsertAfter(newPageDiv, elementOfPageBefore);

            BuildPageCache();
            var newPage = GetPages().First(p=>p.GetDivNodeForThisPage() == newPageDiv);
            Guard.AgainstNull(newPage,"could not find the page we just added");

            //_pageSelection.SelectPage(CreatePageDecriptor(newPageDiv, "should not show", _collectionSettings.Language1Iso639Code));

            // If copied page references images, copy them.
            foreach (var pathFromBook in BookStorage.GetImagePathsRelativeToBook(newPageDiv))
            {
                var path = Path.Combine(FolderPath, pathFromBook);
                if (!RobustFile.Exists(path))
                {
                    var fileName = Path.GetFileName(path);
                    var sourcePath = Path.Combine(templatePage.Book.FolderPath, fileName);
                    if (RobustFile.Exists(sourcePath))
                        RobustFile.Copy(sourcePath, path);
                }
            }

            //similarly, if the page has stylesheet files we don't have, copy them
            foreach(string sheetName in templatePage.Book.OurHtmlDom.GetTemplateStyleSheets())
            {
                var destinationPath = Path.Combine(FolderPath, sheetName);
                if (!File.Exists(destinationPath))
                {
                    var sourcePath = Path.Combine(templatePage.Book.FolderPath, sheetName);
                    if (File.Exists(sourcePath))
                        File.Copy(sourcePath, destinationPath);
                }
            }

            Save();
            if (_pageListChangedEvent != null)
                _pageListChangedEvent.Raise(null);

            _pageSelection.SelectPage(newPage);

            InvokeContentsChanged(null);
        }

        private void TestTemplateInsertion(Bloom.Book.Book book, IPage existingPage, string divContent)
        {
            Mock <IPage> templatePage = CreateTemplatePage(divContent);

            book.InsertPageAfter(existingPage, templatePage.Object);
            AssertPageCount(book, 4);
            Assert.AreEqual("bloom-page somekind A5Portrait", GetPageFromBookDom(book, 1).GetStringAttribute("class"));
        }