private function AttachPageContent($isNew)
{
$provider = new PageContentTreeProvider($this->Page(), $this->Area());
$tree = new TreeBuilder($provider);
$pageContent = $this->Content()->GetPageContent();
if (!$pageContent) {
$pageContent = new PageContent();
$pageContent->SetArea($this->Area());
$pageContent->SetPage($this->Page());
$provider->AttachContent($pageContent, $this->Content());
}
if ($isNew) {
$tree->Insert($pageContent, $this->ParentItem(), $this->PreviousItem());
}
}
protected function NextPageContent()
{
$pageContent = $this->pageContent;
$this->pageContent = $this->tree->NextOf($this->pageContent);
return $pageContent;
}
function Render()
{
$renderer = new ContentsRenderer($this->tree->TopMost(), $this->tree);
return $renderer->Render();
}
private function RenderPageChildren()
{
$pageContent = $this->content->GetPageContent();
$provider = new PageContentTreeProvider($pageContent->GetPage(), $pageContent->GetArea());
$renderer = new ContentsRenderer($provider->FirstChildOf($pageContent), $provider);
return $renderer->Render();
}