bool NavigationTable::ParseXML(xmlNodePtr node)
{
if ( node == nullptr )
return false;
string name(node->name);
if ( AllowedRootNodeNames.find(name) == AllowedRootNodeNames.end() )
return false;
_type = _getProp(node, "type", ePub3NamespaceURI);
if ( _type.empty() )
return false;
#if EPUB_COMPILER_SUPPORTS(CXX_INITIALIZER_LISTS)
XPathWrangler xpath(node->doc, {{"epub", ePub3NamespaceURI}}); // goddamn I love C++11 initializer list constructors
#else
XPathWrangler::NamespaceList __ns;
__ns["epub"] = ePub3NamespaceURI;
XPathWrangler xpath(node->doc, __ns);
#endif
xpath.NameDefaultNamespace("html");
// look for optional <h2> title
// Q: Should we fail on finding multiple <h2> tags here?
auto strings = xpath.Strings("./html:h2[1]/text()", node);
if ( !strings.empty() )
_title = std::move(strings[0]);
// load List Elements from a single Ordered List
// first: confirm there's a single list
xmlNodeSetPtr nodes = xpath.Nodes("./html:ol", node);
if ( nodes == nullptr )
return false;
if ( nodes->nodeNr != 1 )
{
xmlXPathFreeNodeSet(nodes);
return false;
}
LoadChildElements(std::enable_shared_from_this<NavigationTable>::shared_from_this(), nodes->nodeTab[0]);
xmlXPathFreeNodeSet(nodes);
return true;
}
bool NavigationTable::Parse(xmlNodePtr node)
{
if ( node == nullptr )
return false;
string name(node->name);
if ( AllowedRootNodeNames.find(name) == AllowedRootNodeNames.end() )
return false;
_type = _getProp(node, "type", ePub3NamespaceURI);
if ( _type.empty() )
return false;
XPathWrangler xpath(node->doc, {{"epub", ePub3NamespaceURI}}); // goddamn I love C++11 initializer list constructors
xpath.NameDefaultNamespace("html");
// look for optional <h2> title
// Q: Should we fail on finding multiple <h2> tags here?
auto strings = xpath.Strings("./html:h2[1]/text()", node);
if ( !strings.empty() )
_title = std::move(strings[0]);
// load List Elements from a single Ordered List
// first: confirm there's a single list
xmlNodeSetPtr nodes = xpath.Nodes("./html:ol", node);
if ( nodes == nullptr )
return false;
if ( nodes->nodeNr != 1 )
{
xmlXPathFreeNodeSet(nodes);
return false;
}
LoadChildElements(this, nodes->nodeTab[0]);
xmlXPathFreeNodeSet(nodes);
return true;
}
shared_ptr<NavigationElement> NavigationTable::BuildNavigationPoint(xmlNodePtr liNode)
{
auto elementPtr = std::dynamic_pointer_cast<NavigationElement>(shared_from_this());
xmlNodePtr liChild = liNode->children;
if(liChild == nullptr)
{
return nullptr;
}
auto point = std::make_shared<NavigationPoint>(elementPtr);
for ( ; liChild != nullptr; liChild = liChild->next )
{
if ( liChild->type != XML_ELEMENT_NODE )
continue;
std::string cName(reinterpret_cast<const char*>(liChild->name));
if ( cName == "a" )
{
point->SetTitle(reinterpret_cast<const char*>(xmlNodeGetContent(liChild)));
point->SetContent(_getProp(liChild, "href"));
}
else if( cName == "span" )
{
point->SetTitle(xmlNodeGetContent(liChild));
}
else if( cName == "ol" )
{
LoadChildElements(point, liChild);
break;
}
}
return point;
}
NavigationElement* NavigationTable::BuildNavigationPoint(xmlNodePtr liNode)
{
xmlNodePtr liChild = liNode->children;
if(liChild == nullptr)
{
return nullptr;
}
NavigationPoint* point = new NavigationPoint();
for ( ; liChild != nullptr; liChild = liChild->next )
{
if ( liChild->type != XML_ELEMENT_NODE )
continue;
std::string cName(reinterpret_cast<const char*>(liChild->name));
if ( cName == "a" )
{
point->SetTitle(reinterpret_cast<const char*>(xmlNodeGetContent(liChild)));
point->SetSourceHref(_getProp(liChild, "href"));
}
else if( cName == "span" )
{
point->SetTitle(xmlNodeGetContent(liChild));
}
else if( cName == "ol" )
{
LoadChildElements(point, liChild);
break;
}
}
return point;
}
