qt: Add support for opening files directly on macOS. (#7304)

* Associate 3ds files with Citra in Info.plist

* qt: Add support for opening files directly on macOS.

---------

Co-authored-by: shinra-electric <50119606+shinra-electric@users.noreply.github.com>

dist/apple/Info.plist.in

@@ -26,6 +26,38 @@
     <!-- Fixed -->
     <key>LSApplicationCategoryType</key>
     <string>public.app-category.games</string>
+    <key>CFBundleDocumentTypes</key>
+    <array>
+        <dict>
+            <key>CFBundleTypeExtensions</key>
+            <array>
+                <string>3ds</string>
+                <string>3dsx</string>
+                <string>cci</string>
+                <string>cxi</string>
+                <string>cia</string>
+            </array>
+            <key>CFBundleTypeName</key>
+            <string>Nintendo 3DS File</string>
+            <key>CFBundleTypeRole</key>
+            <string>Viewer</string>
+            <key>LSHandlerRank</key>
+            <string>Default</string>
+        </dict>
+        <dict>
+            <key>CFBundleTypeExtensions</key>
+            <array>
+                <string>elf</string>
+                <string>axf</string>
+            </array>
+            <key>CFBundleTypeName</key>
+            <string>Unix Executable and Linkable Format</string>
+            <key>CFBundleTypeRole</key>
+            <string>Viewer</string>
+            <key>LSHandlerRank</key>
+            <string>Alternate</string>
+        </dict>
+    </array>
     <key>NSCameraUsageDescription</key>
     <string>This app requires camera access to emulate the 3DS&apos;s cameras.</string>
     <key>NSMicrophoneUsageDescription</key>

src/citra_qt/main.cpp

@@ -229,6 +229,7 @@ GMainWindow::GMainWindow(Core::System& system_)
     SetDefaultUIGeometry();
     RestoreUIState();
 
+    ConnectAppEvents();
     ConnectMenuEvents();
     ConnectWidgetEvents();
 
@@ -761,6 +762,21 @@ void GMainWindow::OnAppFocusStateChanged(Qt::ApplicationState state) {
     }
 }
 
+bool GApplicationEventFilter::eventFilter(QObject* object, QEvent* event) {
+    if (event->type() == QEvent::FileOpen) {
+        emit FileOpen(static_cast<QFileOpenEvent*>(event));
+        return true;
+    }
+    return false;
+}
+
+void GMainWindow::ConnectAppEvents() {
+    const auto filter = new GApplicationEventFilter();
+    QGuiApplication::instance()->installEventFilter(filter);
+
+    connect(filter, &GApplicationEventFilter::FileOpen, this, &GMainWindow::OnFileOpen);
+}
+
 void GMainWindow::ConnectWidgetEvents() {
     connect(game_list, &GameList::GameChosen, this, &GMainWindow::OnGameListLoadFile);
     connect(game_list, &GameList::OpenDirectory, this, &GMainWindow::OnGameListOpenDirectory);
@@ -2752,6 +2768,10 @@ bool GMainWindow::DropAction(QDropEvent* event) {
     return true;
 }
 
+void GMainWindow::OnFileOpen(const QFileOpenEvent* event) {
+    BootGame(event->file());
+}
+
 void GMainWindow::dropEvent(QDropEvent* event) {
     DropAction(event);
 }

src/citra_qt/main.h

@@ -41,6 +41,7 @@ class LoadingScreen;
 class MicroProfileDialog;
 class MultiplayerState;
 class ProfilerWidget;
+class QFileOpenEvent;
 template <typename>
 class QFutureWatcher;
 class QLabel;
@@ -96,6 +97,8 @@ public:
     bool DropAction(QDropEvent* event);
     void AcceptDropEvent(QDropEvent* event);
 
+    void OnFileOpen(const QFileOpenEvent* event);
+
     void UninstallTitles(
         const std::vector<std::tuple<Service::FS::MediaType, u64, QString>>& titles);
 
@@ -137,6 +140,7 @@ private:
     void SyncMenuUISettings();
     void RestoreUIState();
 
+    void ConnectAppEvents();
     void ConnectWidgetEvents();
     void ConnectMenuEvents();
     void UpdateMenuState();
@@ -382,5 +386,15 @@ protected:
     void mouseReleaseEvent(QMouseEvent* event) override;
 };
 
+class GApplicationEventFilter : public QObject {
+    Q_OBJECT
+
+signals:
+    void FileOpen(const QFileOpenEvent* event);
+
+protected:
+    bool eventFilter(QObject* object, QEvent* event) override;
+};
+
 Q_DECLARE_METATYPE(std::size_t);
 Q_DECLARE_METATYPE(Service::AM::InstallStatus);