CFFI hookups for nfd "open directory" functionality

lime/ui/FileDialog.hx

@@ -52,6 +52,10 @@ class FileDialog {
 					
 					worker.sendComplete (lime_file_dialog_open_files (filter, defaultPath));
 				
+				case OPEN_DIRECTORY:
+					
+					worker.sendComplete (lime_file_dialog_open_directory (filter, defaultPath));
+				
 				case SAVE:
 					
 					worker.sendComplete (lime_file_dialog_save_file (filter, defaultPath));
@@ -64,7 +68,7 @@ class FileDialog {
 			
 			switch (type) {
 				
-				case OPEN, SAVE:
+				case OPEN, OPEN_DIRECTORY, SAVE:
 					
 					var path:String = cast result;
 					
@@ -108,6 +112,10 @@ class FileDialog {
 			case OPEN:
 				
 				path = lime_file_dialog_open_file (filter, defaultPath);
+				
+			case OPEN_DIRECTORY:
+				
+				path = lime_file_dialog_open_directory (filter, defaultPath);
 			
 			case OPEN_MULTIPLE:
 				
@@ -121,7 +129,7 @@ class FileDialog {
 			
 		switch (type) {
 			
-			case OPEN, SAVE:
+			case OPEN, OPEN_DIRECTORY, SAVE:
 				
 				if (path != null) {
 					
@@ -301,6 +309,7 @@ class FileDialog {
 	
 	
 	#if (cpp || neko || nodejs)
+	@:cffi private static function lime_file_dialog_open_directory (filter:String, defaultPath:String):Dynamic;
 	@:cffi private static function lime_file_dialog_open_file (filter:String, defaultPath:String):Dynamic;
 	@:cffi private static function lime_file_dialog_open_files (filter:String, defaultPath:String):Dynamic;
 	@:cffi private static function lime_file_dialog_save_file (filter:String, defaultPath:String):Dynamic;

lime/ui/FileDialogType.hx

@@ -6,5 +6,6 @@ enum FileDialogType {
 	OPEN;
 	OPEN_MULTIPLE;
 	SAVE;
+	OPEN_DIRECTORY;
 	
 }

project/include/ui/FileDialog.h

@@ -12,6 +12,7 @@ namespace lime {
 		
 		public:
 			
+			static const char* OpenDirectory (const char* filter = 0, const char* defaultPath = 0);
 			static const char* OpenFile (const char* filter = 0, const char* defaultPath = 0);
 			static void OpenFiles (std::vector<const char*>* files, const char* filter = 0, const char* defaultPath = 0);
 			static const char* SaveFile (const char* filter = 0, const char* defaultPath = 0);

project/src/ExternalInterface.cpp

@@ -264,6 +264,17 @@ namespace lime {
 	}
 	
 	
+	value lime_file_dialog_open_directory (HxString filter, HxString defaultPath) {
+		
+		#ifdef LIME_NFD
+		const char* path = FileDialog::OpenDirectory (filter.__s, defaultPath.__s);
+		return path ? alloc_string (path) : alloc_null ();
+		#endif
+		
+		return 0;
+		
+	}
+	
 	value lime_file_dialog_open_file (HxString filter, HxString defaultPath) {
 		
 		#ifdef LIME_NFD
@@ -1410,6 +1421,7 @@ namespace lime {
 	DEFINE_PRIME1 (lime_cffi_set_finalizer);
 	DEFINE_PRIME0 (lime_clipboard_get_text);
 	DEFINE_PRIME1v (lime_clipboard_set_text);
+	DEFINE_PRIME2 (lime_file_dialog_open_directory);
 	DEFINE_PRIME2 (lime_file_dialog_open_file);
 	DEFINE_PRIME2 (lime_file_dialog_open_files);
 	DEFINE_PRIME2 (lime_file_dialog_save_file);

project/src/ui/FileDialog.cpp

@@ -6,6 +6,34 @@
 namespace lime {
 	
 	
+	const char* FileDialog::OpenDirectory (const char* filter, const char* defaultPath) {
+		
+		nfdchar_t *savePath = 0;
+		nfdresult_t result = NFD_OpenDirectoryDialog (filter, defaultPath, &savePath);
+		
+		switch (result) {
+			
+			case NFD_OKAY:
+				
+				return savePath;
+				break;
+			
+			case NFD_CANCEL:
+				
+				break;
+			
+			default:
+				
+				printf ("Error: %s\n", NFD_GetError ());
+				break;
+			
+		}
+		
+		return savePath;
+		
+	}
+	
+	
 	const char* FileDialog::OpenFile (const char* filter, const char* defaultPath) {
 		
 		nfdchar_t *savePath = 0;