Qt: Drag and drop game loading (fixes #146)

CHANGES

@@ -20,6 +20,7 @@ Features:
  - Support BPS patches
  - Configurable game overrides
  - Support loading 7-Zip files
+ - Drag and drop game loading
 Bugfixes:
  - ARM7: Extend prefetch by one stage
  - GBA Audio: Support 16-bit writes to FIFO audio

src/platform/qt/Window.cpp

@@ -11,6 +11,7 @@
 #include <QKeySequence>
 #include <QMenuBar>
 #include <QMessageBox>
+#include <QMimeData>
 #include <QStackedLayout>
 
 #include "ConfigController.h"
@@ -54,6 +55,7 @@ Window::Window(ConfigController* config, QWidget* parent)
 {
 	setWindowTitle(PROJECT_NAME);
 	setFocusPolicy(Qt::StrongFocus);
+	setAcceptDrops(true);
 	m_controller = new GameController(this);
 	m_controller->setInputController(&m_inputController);
 	m_controller->setOverrides(m_config->overrides());
@@ -326,6 +328,28 @@ void Window::focusOutEvent(QFocusEvent*) {
 	m_controller->clearKeys();
 }
 
+void Window::dragEnterEvent(QDragEnterEvent* event) {
+	if (event->mimeData()->hasFormat("text/uri-list")) {
+		event->acceptProposedAction();
+	}
+}
+
+void Window::dropEvent(QDropEvent* event) {
+	QString uris = event->mimeData()->data("text/uri-list");
+	uris = uris.trimmed();
+	if (uris.contains("\n")) {
+		// Only one file please
+		return;
+	}
+	QUrl url(uris);
+	if (!url.isLocalFile()) {
+		// No remote loading
+		return;
+	}
+	event->accept();
+	m_controller->loadGame(url.path());
+}
+
 void Window::toggleFullScreen() {
 	if (isFullScreen()) {
 		showNormal();

src/platform/qt/Window.h

@@ -91,6 +91,8 @@ protected:
 	virtual void resizeEvent(QResizeEvent*) override;
 	virtual void closeEvent(QCloseEvent*) override;
 	virtual void focusOutEvent(QFocusEvent*) override;
+	virtual void dragEnterEvent(QDragEnterEvent*) override;
+	virtual void dropEvent(QDropEvent*) override;
 
 private slots:
 	void gameStarted(GBAThread*);