fix: set application policy on macOS for extension (#6043)

src/CMakeLists.txt

@@ -765,6 +765,8 @@ if (APPLE)
     set(MACOS_BUNDLE_ICON_FILE "${CMAKE_SOURCE_DIR}/resources/chatterino.icns")
     list(APPEND SOURCE_FILES "${MACOS_BUNDLE_ICON_FILE}")
     set_source_files_properties(${MACOS_BUNDLE_ICON_FILE} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources")
+
+    list(APPEND SOURCE_FILES util/MacOsHelpers.mm)
 endif ()
 
 # Generate source groups for use in IDEs

src/main.cpp

@@ -15,6 +15,10 @@
 #include "util/AttachToConsole.hpp"
 #include "util/IpcQueue.hpp"
 
+#ifdef Q_OS_MACOS
+#    include "util/MacOsHelpers.h"
+#endif
+
 #include <QApplication>
 #include <QCommandLineParser>
 #include <QMessageBox>
@@ -73,6 +77,9 @@ int main(int argc, char **argv)
     // run in gui mode or browser extension host mode
     if (args.shouldRunBrowserExtensionHost)
     {
+#ifdef Q_OS_MACOS
+        ::chatterinoSetMacOsActivationPolicyProhibited();
+#endif
         runBrowserExtensionHost();
     }
     else if (args.printVersion)

src/util/MacOsHelpers.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void chatterinoSetMacOsActivationPolicyProhibited();

src/util/MacOsHelpers.mm

@@ -0,0 +1,9 @@
+#include "util/MacOsHelpers.h"
+
+#include <AppKit/AppKit.h>
+
+void chatterinoSetMacOsActivationPolicyProhibited()
+{
+    [[NSApplication sharedApplication] setActivationPolicy:NSApplicationActivationPolicyProhibited];
+}
+