Use an enum instead of hardcoded values for the user-injected codes

src/inputmanager.cpp

@@ -178,18 +178,29 @@ bool InputManager::getEvent(ButtonEvent *bevent, bool wait) {
 			break;
 #endif
 		case SDL_USEREVENT:
-			if (!event.user.code)
+			switch ((enum EventCode) event.user.code) {
-				menu->removePackageLink((const char *) event.user.data1);
+				case REMOVE_LINKS:
-			else if (event.user.code == 1)
+					menu->removePackageLink((const char *) event.user.data1);
-				menu->openPackage((const char *) event.user.data1);
+					break;
-			else if (event.user.code == 2)
+				case OPEN_PACKAGE:
-				menu->openPackagesFromDir(
+					menu->openPackage((const char *) event.user.data1);
-							((string) (const char *) event.user.data1
+					break;
-							 + "/apps").c_str());
+				case OPEN_PACKAGES_FROM_DIR:
-			free(event.user.data1);
+					menu->openPackagesFromDir(
+								((string) (const char *) event.user.data1
+								 + "/apps").c_str());
+					break;
+				case REPAINT_MENU:
+				default:
+					break;
+			}
+
+			if (event.user.data1)
+				free(event.user.data1);
 			bevent->state = PRESSED;
 			bevent->button = REPAINT;
 			return true;
+
 		default:
 			return false;
 	}

src/inputmanager.h

@@ -26,6 +26,13 @@
 
 class Menu;
 
+enum EventCode {
+	REMOVE_LINKS,
+	OPEN_PACKAGE,
+	OPEN_PACKAGES_FROM_DIR,
+	REPAINT_MENU,
+};
+
 class InputManager {
 public:
 	enum Button {

src/mediamonitor.cpp

@@ -4,6 +4,7 @@
 #include <unistd.h>
 
 #include "debug.h"
+#include "inputmanager.h"
 #include "mediamonitor.h"
 
 MediaMonitor::MediaMonitor(std::string dir) :
@@ -21,7 +22,7 @@ void MediaMonitor::inject_event(bool is_add, const char *path)
 {
 	SDL_UserEvent e = {
 		.type = SDL_USEREVENT,
-		.code = is_add ? 2 : 0,
+		.code = is_add ? OPEN_PACKAGES_FROM_DIR : REMOVE_LINKS,
 		.data1 = strdup(path),
 		.data2 = NULL,
 	};

src/monitor.cpp

@@ -8,13 +8,14 @@
 #include <sys/inotify.h>
 #include <unistd.h>
 
+#include "inputmanager.h"
 #include "monitor.h"
 
 void Monitor::inject_event(bool is_add, const char *path)
 {
 	SDL_UserEvent e = {
 		.type = SDL_USEREVENT,
-		.code = (int) is_add,
+		.code = is_add ? OPEN_PACKAGE : REMOVE_LINKS,
 		.data1 = strdup(path),
 		.data2 = NULL,
 	};