fix: add support for automatic streamer mode check from flatpak (#6250)

Co-authored-by: nerix <nero.9@hotmail.de>

CHANGELOG.md

@@ -15,6 +15,7 @@
 - Minor: The JSON selector in the upload response can now query arrays using their indices like `foo.0`. (#6193)
 - Minor: Made nicknames searchable in the Settings dialog search bar. (#5886)
 - Minor: Added hotkey Action for opening account selector. (#6192)
+- Bugfix: Automatic streamer mode detection now works from Flatpak. (#6250)
 - Bugfix: Don't create native messaging manifest file if browser directory doesn't exist. (#6116)
 - Bugfix: Fixed scrolling now working on inputs in the settings. (#6128)
 - Bugfix: Make reply-cancel button less coarse-grained. (#6106)

src/singletons/StreamerMode.cpp

@@ -3,6 +3,7 @@
 #include "Application.hpp"
 #include "common/Literals.hpp"
 #include "common/QLogging.hpp"
+#include "common/Version.hpp"
 #include "providers/twitch/TwitchIrcServer.hpp"
 #include "singletons/Settings.hpp"
 #include "util/PostToThread.hpp"
@@ -55,8 +56,17 @@ bool isBroadcasterSoftwareActive()
     static bool shouldShowWarning = true;
 
     QProcess p;
-    p.start("pgrep", {"-xi", broadcastingBinaries().join("|")},
-            QIODevice::NotOpen);
+    if (Version::instance().isFlatpak())
+    {
+        p.start("flatpak-spawn",
+                {"--host", "pgrep", "-xi", broadcastingBinaries().join("|")},
+                QIODevice::NotOpen);
+    }
+    else
+    {
+        p.start("pgrep", {"-xi", broadcastingBinaries().join("|")},
+                QIODevice::NotOpen);
+    }
 
     if (p.waitForFinished(1000) && p.exitStatus() == QProcess::NormalExit)
     {