/**
* Get a specific page for this book
*
* @param string $pageName
* @return HumanHelp_Model_Page
*/
public function getPage($pageName)
{
$page = new HumanHelp_Model_Page($pageName);
$page->setBook($this);
// Load page content
$contentFile = $this->_bookDataPath . 'content' . DIRECTORY_SEPARATOR . $pageName;
if (!is_readable($contentFile)) {
throw new ErrorException("Page {$pageName} does not exist {$contentFile}");
}
$contentXml = new DOMDocument();
if (!$contentXml->load($contentFile)) {
throw new ErrorException("Unable to load content file {$contentFile}");
}
$contentBody = $contentXml->getElementsByTagName('body');
if ($contentBody->length != 1) {
throw new ErrorException("Expecting exactly 1 body element, found {$contentBody->length}");
}
$contentBody = $contentBody->item(0);
// Process document through XHTML filters
foreach ($this->_getXhtmlFilters() as $filter) {
/* @var $filter HHLib_XhtmlFilter_Abstract */
$filter->setDomDocument($contentXml);
$filter->filter($contentBody);
}
$content = '';
foreach ($contentBody->childNodes as $bodyChild) {
/* @var $bodyChild DOMNode */
$content .= $contentXml->saveXML($bodyChild);
}
$page->setContent($content);
// Set page title
$contentXml = simplexml_import_dom($contentXml);
$title = (string) $contentXml->head->title;
$page->setTitle($title);
return $page;
}
