Pane: Focus selected child first

src/dusk/ui/button.cpp

@@ -29,7 +29,7 @@ void Button::set_text(const Rml::String& text) {
 
 void Button::set_selected(bool selected) {
     if (mProps.selected != selected) {
-        mRoot->SetClass("selected", selected);
+        mRoot->SetPseudoClass("selected", selected);
         mProps.selected = selected;
     }
 }

src/dusk/ui/component.hpp

@@ -46,6 +46,7 @@ public:
     }
 
     Rml::Element* root() const { return mRoot; }
+    bool selected() const { return mRoot->IsPseudoClassSet("selected"); }
 
 protected:
     static Rml::Element* append(Rml::Element* parent, const Rml::String& tag);

src/dusk/ui/pane.cpp

@@ -57,6 +57,12 @@ void Pane::update() {
 }
 
 bool Pane::focus() {
+    // If there's a selected child, focus that
+    for (const auto& child : mChildren) {
+        if (child->selected() && child->focus()) {
+            return true;
+        }
+    }
     for (const auto& child : mChildren) {
         if (child->focus()) {
             return true;

src/dusk/ui/select_button.cpp

@@ -47,7 +47,7 @@ bool SelectButton::focus() {
 
 void SelectButton::set_selected(bool selected) {
     if (mProps.selected != selected) {
-        mRoot->SetClass("selected", selected);
+        mRoot->SetPseudoClass("selected", selected);
         mProps.selected = selected;
     }
 }