Widget::WidgetsList SearchContainerForClass( Container::PtrConst container, const std::string& class_name ) {
Widget::WidgetsList result;
if( !container ) {
return result;
}
for( const auto& child : container->GetChildren() ) {
if( child->GetClass() == class_name ) {
result.push_back( child );
}
auto child_container = std::dynamic_pointer_cast<Container>( child );
if( child_container ) {
auto child_result = SearchContainerForClass( child_container, class_name );
// Splice the 2 vectors.
if( !child_result.empty() ) {
result.reserve( child_result.size() );
result.insert( result.end(), child_result.begin(), child_result.end() );
}
}
}
return result;
}
Widget::Ptr SearchContainerForId( Container::PtrConst container, const std::string& id ) {
if( !container ) {
return Widget::Ptr();
}
for( const auto& child : container->GetChildren() ) {
if( child->GetId() == id ) {
return child;
}
auto child_container = std::dynamic_pointer_cast<Container>( child );
if( child_container ) {
auto widget = SearchContainerForId( child_container, id );
if( widget ) {
return widget;
}
}
}
return Widget::Ptr();
}