[Application] Add single instance guard and mime types.

Took 2 hours 39 minutes

Took 18 minutes

Took 5 minutes

Took 12 seconds

cmake/Info.plist

@@ -34,5 +34,31 @@
     <string>${MACOSX_BUNDLE_COPYRIGHT}</string>
     <key>NSHighResolutionCapable</key>
     <true/>
+    <key>CFBundleDocumentTypes</key>
+    <array>
+        <dict>
+            <key>CFBundleTypeExtensions</key>
+            <array>
+                <string>cod</string>
+            </array>
+            <key>CFBundleTypeName</key>
+            <string>Cockatrice</string>
+            <key>CFBundleTypeRole</key>
+            <string>Editor</string>
+            <key>LSHandlerRank</key>
+            <string>Default</string>
+        </dict>
+    </array>
+    <key>CFBundleURLTypes</key>
+    <array>
+        <dict>
+            <key>CFBundleURLName</key>
+            <string>Cockatrice</string>
+            <key>CFBundleURLSchemes</key>
+            <array>
+                <string>cockatrice</string>
+            </array>
+        </dict>
+    </array>
 </dict>
 </plist>

cmake/NSIS.template.in

@@ -294,6 +294,20 @@ Section "Application" SecApplication
 SetShellVarContext all
 SetOutPath "$INSTDIR"
 
+${If} $PortableMode = 0
+
+    ; --- Register .cod file type ---
+    WriteRegStr HKCR ".cod" "" "Cockatrice"
+    WriteRegStr HKCR "Cockatrice" "" "Cockatrice Deck File"
+    WriteRegStr HKCR "Cockatrice\shell\open\command" "" '"$INSTDIR\cockatrice.exe" "%1"'
+
+    ; --- Register custom URI protocol ---
+    WriteRegStr HKCR "cockatrice" "" "URL: Cockatrice Protocol"
+    WriteRegStr HKCR "cockatrice" "URL Protocol" ""
+    WriteRegStr HKCR "cockatrice\shell\open\command" "" '"$INSTDIR\cockatrice.exe" "%1"'
+
+${EndIf}
+
 ${If} $PortableMode = 1
 ${AndIf} ${FileExists} "$INSTDIR\portable.dat"
 	; upgrade portable mode
@@ -402,6 +416,9 @@ Section "un.Application" UnSecApplication
 	RMDir "$SMPROGRAMS\Cockatrice"
 
 	DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Cockatrice"
+	DeleteRegKey HKCR ".cod"
+    DeleteRegKey HKCR "Cockatrice"
+    DeleteRegKey HKCR "cockatrice"
 SectionEnd
 
 ; unselected because it is /o

cockatrice/CMakeLists.txt

@@ -283,6 +283,7 @@ set(cockatrice_SOURCES
     src/interface/widgets/visual_deck_storage/visual_deck_storage_widget.cpp
     src/interface/window_main.cpp
     src/main.cpp
+    src/single_instance_manager.cpp
     src/interface/widgets/tabs/abstract_tab_deck_editor.cpp
     src/interface/widgets/tabs/api/archidekt/tab_archidekt.cpp
     src/interface/widgets/tabs/api/archidekt/api_response/archidekt_deck_listing_api_response.cpp
@@ -406,6 +407,11 @@ set(DESKTOPDIR
     CACHE STRING "desktop file destination"
 )
 
+set(MIMEDIR
+    share/mime/packages
+    CACHE STRING "mime file destination"
+)
+
 set(COCKATRICE_MAC_QM_INSTALL_DIR "cockatrice.app/Contents/Resources/translations")
 set(COCKATRICE_UNIX_QM_INSTALL_DIR "share/cockatrice/translations")
 set(COCKATRICE_WIN32_QM_INSTALL_DIR "translations")
@@ -490,6 +496,7 @@ if(UNIX)
     install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/resources/cockatrice.png DESTINATION ${ICONDIR}/hicolor/48x48/apps)
     install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/resources/cockatrice.svg DESTINATION ${ICONDIR}/hicolor/scalable/apps)
     install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/cockatrice.desktop DESTINATION ${DESKTOPDIR})
+    install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/cockatrice-cod.xml DESTINATION ${MIMEDIR})
   endif()
 elseif(WIN32)
   install(TARGETS cockatrice RUNTIME DESTINATION ./)

cockatrice/cockatrice-cod.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
+    <mime-type type="application/x-cockatrice">
+        <comment>Cockatrice Deck File</comment>
+        <glob pattern="*.cod"/>
+    </mime-type>
+</mime-info>

cockatrice/cockatrice.desktop

@@ -6,3 +6,5 @@ Name=Cockatrice
 Exec=cockatrice
 Icon=cockatrice
 Categories=Game;CardGame;
+MimeType=application/x-cockatrice;
+X-Scheme-Handler/cockatrice=true

cockatrice/src/main.cpp

@@ -28,7 +28,9 @@
 #include "interface/pixel_map_generator.h"
 #include "interface/theme_manager.h"
 #include "interface/widgets/dialogs/dlg_settings.h"
+#include "interface/widgets/tabs/tab_supervisor.h"
 #include "interface/window_main.h"
+#include "single_instance_manager.h"
 #include "version_string.h"
 
 #include <QApplication>
@@ -174,6 +176,7 @@ int main(int argc, char *argv[])
     SetUnhandledExceptionFilter(CockatriceUnhandledExceptionFilter);
 #endif
 
+    // Logging setup
 #ifdef Q_OS_APPLE
     // <build>/cockatrice/cockatrice.app/Contents/MacOS/cockatrice
     const QByteArray configPath = "../../../qtlogging.ini";
@@ -191,6 +194,7 @@ int main(int argc, char *argv[])
         // Set the QT_LOGGING_CONF environment variable
         qputenv("QT_LOGGING_CONF", configPath);
     }
+
     qSetMessagePattern(
         "\033[0m[%{time yyyy-MM-dd h:mm:ss.zzz} "
         "%{if-debug}\033[36mD%{endif}%{if-info}\033[32mI%{endif}%{if-warning}\033[33mW%{endif}%{if-critical}\033[31mC%{"
@@ -200,6 +204,7 @@ int main(int argc, char *argv[])
     QObject::connect(&app, &QApplication::lastWindowClosed, &app, &QApplication::quit);
 
     qInstallMessageHandler(CockatriceLogger);
+
 #ifdef Q_OS_WIN
     app.addLibraryPath(app.applicationDirPath() + "/plugins");
 #endif
@@ -215,6 +220,7 @@ int main(int argc, char *argv[])
     qApp->setAttribute(Qt::AA_DontShowIconsInMenus, true);
 #endif
 
+    // Translations
 #ifdef Q_OS_MAC
     translationPath = qApp->applicationDirPath() + "/../Resources/translations";
 #elif defined(Q_OS_WIN)
@@ -223,6 +229,7 @@ int main(int argc, char *argv[])
     translationPath = qApp->applicationDirPath() + "/../share/cockatrice/translations";
 #endif
 
+    // Command-line parser
     QCommandLineParser parser;
     parser.setApplicationDescription("Cockatrice");
     parser.addHelpOption();
@@ -271,6 +278,21 @@ int main(int argc, char *argv[])
     // then reload the DB. otherwise just reload the DB
     SpoilerBackgroundUpdater spoilerBackgroundUpdater;
 
+    // --- Handle files or URLs passed at startup ---
+    SingleInstanceManager instance;
+    QStringList startupFiles;
+
+    // Collect command-line files/URLs
+    for (int i = 1; i < argc; ++i) {
+        QString arg = QString::fromLocal8Bit(argv[i]);
+        startupFiles.append(arg);
+    }
+
+    if (!instance.tryRun(startupFiles)) {
+        // Another instance received our files, exit
+        return 0;
+    }
+
     ui.show();
     qCInfo(MainLog) << "ui.show() finished";
 
@@ -280,7 +302,47 @@ int main(int argc, char *argv[])
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
     app.setAttribute(Qt::AA_UseHighDpiPixmaps);
 #endif
-    app.exec();
+
+    for (const QString &file : startupFiles) {
+        if (file.startsWith("cockatrice://")) {
+            // ui.openUrl(QUrl(file));
+        } else if (QFileInfo(file).exists()) {
+            std::optional<LoadedDeck> deckOpt =
+                DeckLoader::loadFromFile(file, DeckFileFormat::getFormatFromName(file), true);
+            if (deckOpt) {
+                ui.getTabSupervisor()->openDeckInNewTab(deckOpt.value());
+            }
+        }
+    }
+
+    // Connect to future file/URL events from other instances
+    QObject::connect(&instance, &SingleInstanceManager::filesReceived, [&ui](const QStringList &files) {
+        for (const QString &file : files) {
+            if (file.startsWith("cockatrice://")) {
+                // ui.openUrl(QUrl(file));
+            } else if (QFileInfo(file).exists()) {
+                std::optional<LoadedDeck> deckOpt =
+                    DeckLoader::loadFromFile(file, DeckFileFormat::getFormatFromName(file), true);
+                if (deckOpt) {
+                    ui.getTabSupervisor()->openDeckInNewTab(deckOpt.value());
+                }
+            }
+        }
+    });
+
+#ifdef Q_OS_MAC
+    // macOS: handle files opened via Finder after startup
+    QObject::connect(&app, &QApplication::fileOpen, [&ui](const QString &filePath) {
+        qDebug() << "macOS opened file:" << filePath;
+        std::optional<LoadedDeck> deckOpt =
+            DeckLoader::loadFromFile(filePath, DeckFileFormat::getFormatFromName(filePath), true);
+        if (deckOpt) {
+            ui.getTabSupervisor()->openDeckInNewTab(deckOpt.value());
+        }
+    });
+#endif
+
+    int ret = app.exec();
 
     qCInfo(MainLog) << "Event loop finished, terminating...";
     delete rng;

cockatrice/src/single_instance_manager.cpp

@@ -0,0 +1 @@
+#include "single_instance_manager.h"

cockatrice/src/single_instance_manager.h

@@ -0,0 +1,66 @@
+#ifndef COCKATRICE_SINGLE_INSTANCE_MANAGER_H
+#define COCKATRICE_SINGLE_INSTANCE_MANAGER_H
+
+#include <QDataStream>
+#include <QDebug>
+#include <QLocalServer>
+#include <QLocalSocket>
+
+class SingleInstanceManager : public QObject
+{
+    Q_OBJECT
+public:
+    explicit SingleInstanceManager(QObject *parent = nullptr) : QObject(parent)
+    {
+    }
+
+    bool tryRun(const QStringList &initialFiles)
+    {
+        serverName = "CockatriceSingleInstance";
+
+        QLocalSocket socket;
+        socket.connectToServer(serverName);
+        if (socket.waitForConnected(100)) {
+            // Another instance is running, send files/URLs to it
+            QDataStream out(&socket);
+            out << initialFiles;
+            socket.flush();
+            socket.waitForBytesWritten(1000);
+
+            return false; // Do not continue in this process
+        }
+
+        // No other instance, create server
+        server = new QLocalServer(this);
+        connect(server, &QLocalServer::newConnection, this, &SingleInstanceManager::receiveFiles);
+        if (!server->listen(serverName)) {
+            QLocalServer::removeServer(serverName);
+            server->listen(serverName);
+        }
+        return true;
+    }
+
+signals:
+    void filesReceived(const QStringList &files);
+
+private slots:
+    void receiveFiles()
+    {
+        QLocalSocket *clientConnection = server->nextPendingConnection();
+        connect(clientConnection, &QLocalSocket::disconnected, clientConnection, &QLocalSocket::deleteLater);
+        clientConnection->waitForReadyRead(1000);
+
+        QDataStream in(clientConnection);
+        QStringList files;
+        in >> files;
+
+        emit filesReceived(files);
+        clientConnection->disconnectFromServer();
+    }
+
+private:
+    QString serverName;
+    QLocalServer *server = nullptr;
+};
+
+#endif // COCKATRICE_SINGLE_INSTANCE_MANAGER_H