@@ -28,5 +28,18 @@ <key>NSHighResolutionCapable</key>
 	<true/>
 	<key>NSHumanReadableCopyright</key>
 	<string>${MACOSX_BUNDLE_COPYRIGHT}</string>
+	<key>CFBundleDocumentTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>gba</string>
+			</array>
+			<key>CFBundleTypeName</key>
+			<string>Game Boy Advance ROM Image</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+	</array>
 </dict>
 </plist>

@@ -28,6 +28,7 @@ set(SOURCE_FILES
 	AudioDevice.cpp
 	AudioProcessor.cpp
 	Display.cpp
+	GBAApp.cpp
 	GameController.cpp
 	LoadSaveState.cpp
 	LogView.cpp

@@ -0,0 +1,32 @@
+#include "GBAApp.h"
+
+#include "GameController.h"
+
+#include <QFileOpenEvent>
+
+using namespace QGBA;
+
+GBAApp::GBAApp(int& argc, char* argv[])
+	: QApplication(argc, argv)
+{
+    QApplication::setApplicationName(PROJECT_NAME);
+    QApplication::setApplicationVersion(PROJECT_VERSION);
+
+	if (parseCommandArgs(&m_opts, argc, argv, 0)) {
+		m_window.optionsPassed(&m_opts);
+	}
+
+    m_window.show();
+}
+
+GBAApp::~GBAApp() {
+	freeOptions(&m_opts);
+}
+
+bool GBAApp::event(QEvent* event) {
+	if (event->type() == QEvent::FileOpen) {
+		m_window.controller()->loadGame(static_cast<QFileOpenEvent*>(event)->file());
+		return true;
+	}
+	return QApplication::event(event);
+}

@@ -0,0 +1,34 @@
+#ifndef QGBA_APP_H
+#define QGBA_APP_H
+
+#include <QApplication>
+
+#include "Window.h"
+
+extern "C" {
+#include "platform/commandline.h"
+}
+
+namespace QGBA {
+
+class GameController;
+
+class GBAApp : public QApplication {
+Q_OBJECT
+
+public:
+	GBAApp(int& argc, char* argv[]);
+	virtual ~GBAApp();
+
+protected:
+	bool event(QEvent*);
+
+private:
+	Window m_window;
+
+	StartupOptions m_opts;
+};
+
+}
+
+#endif

@@ -26,6 +26,8 @@ public:
 	Window(QWidget* parent = nullptr);
 	virtual ~Window();
 
+	GameController* controller() { return m_controller; }
+
 	static GBAKey mapKey(int qtKey);
 
 	void optionsPassed(StartupOptions*);

@@ -1,24 +1,7 @@
-#include <QApplication>
+#include "GBAApp.h"
 #include "Window.h"
-
-extern "C" {
-#include "platform/commandline.h"
-}
 
 int main(int argc, char* argv[]) {
-    QApplication application(argc, argv);
-    QApplication::setApplicationName(PROJECT_NAME);
-    QApplication::setApplicationVersion(PROJECT_VERSION);
-
-    QGBA::Window window;
-
-	struct StartupOptions opts;
-	if (parseCommandArgs(&opts, argc, argv, 0)) {
-		window.optionsPassed(&opts);
-	}
-    window.show();
-
-    int rcode = application.exec();
-	freeOptions(&opts);
-    return rcode;
+    QGBA::GBAApp application(argc, argv);
+    return application.exec();
 }