[studio] Add support for adding and deleting directories

src/olympic/studio/modlib/include/studio/imguiutil.hpp

@@ -175,9 +175,16 @@ enum class PopupResponse {
 	Cancel,
 };
 
-PopupResponse PopupControlsOkCancel(float popupWidth, bool &popupOpen);
+PopupResponse PopupControlsOkCancel(
+	float popupWidth,
+	bool &popupOpen,
+	ox::CStringViewCR ok = "OK",
+	ox::CStringViewCR cancel = "Cancel");
 
-PopupResponse PopupControlsOkCancel(bool &popupOpen);
+PopupResponse PopupControlsOkCancel(
+	bool &popupOpen,
+	ox::CStringViewCR ok = "OK",
+	ox::CStringViewCR cancel = "Cancel");
 
 [[nodiscard]]
 bool BeginPopup(turbine::Context &ctx, ox::CStringViewCR popupName, bool &show, ImVec2 const&sz = {285, 0});

src/olympic/studio/modlib/include/studio/project.hpp

@@ -19,6 +19,7 @@ namespace studio {
 
 enum class ProjectEvent {
 	None,
+	DirAdded,
 	FileAdded,
 	// FileRecognized is triggered for all matching files upon a new
 	// subscription to a section of the project and upon the addition of a file.
@@ -120,6 +121,7 @@ class Project: public ox::SignalHandler {
 	// signals
 	public:
 		ox::Signal<ox::Error(ProjectEvent, ox::StringViewCR)> fileEvent;
+		ox::Signal<ox::Error(ox::StringViewCR)> dirAdded;
 		ox::Signal<ox::Error(ox::StringViewCR)> fileAdded;
 		// FileRecognized is triggered for all matching files upon a new
 		// subscription to a section of the project and upon the addition of a
@@ -177,6 +179,9 @@ ox::Error Project::subscribe(ProjectEvent e, ox::SignalHandler *tgt, Functor &&s
 	switch (e) {
 		case ProjectEvent::None:
 			break;
+		case ProjectEvent::DirAdded:
+			connect(this, &Project::dirAdded, tgt, slot);
+			break;
 		case ProjectEvent::FileAdded:
 			connect(this, &Project::fileAdded, tgt, slot);
 			break;