[frameworks/knotifications] src: Ensure we have notifyrc file for platform notification configuration

Git commit f37499b6fd8ba36f86c75ac0e3180b7026abf0aa by Volker Krause.
Committed on 01/08/2026 at 09:00.
Pushed by vkrause into branch 'master'.

Ensure we have notifyrc file for platform notification configuration

Outside of Android even a Qt resource bundled one isn't good enough,
System Settings wont be able to see that.

M  +19   -1    src/knotificationconfiguration.cpp
M  +3    -0    src/knotificationconfiguration.h

https://invent.kde.org/frameworks/knotifications/-/commit/f37499b6fd8ba36f86c75ac0e3180b7026abf0aa

diff --git a/src/knotificationconfiguration.cpp b/src/knotificationconfiguration.cpp
index 2365c0f9..6134b5a0 100644
--- a/src/knotificationconfiguration.cpp
+++ b/src/knotificationconfiguration.cpp
@@ -19,6 +19,20 @@
 
 using namespace Qt::Literals;
 
+[[nodiscard]] static bool hasNotifyRcFile(QStringView appName)
+{
+    if (!QStandardPaths::locate(QStandardPaths::GenericDataLocation, "knotifications6/"_L1 + appName + ".notifyrc"_L1).isEmpty()) {
+        return true;
+    }
+#ifdef Q_OS_ANDROID
+    // on platforms where the system doesn't read notifyrc files bundling them as Qt resources is good enough'
+    if (QFileInfo::exists(":/knotifications6/"_L1 + appName + ".notifyrc"_L1)) {
+        return true;
+    }
+#endif
+    return false;
+}
+
 #ifndef Q_OS_ANDROID
 struct {
     bool initialized : 1 = false;
@@ -33,6 +47,10 @@ static void detectCapabilities()
     }
     s_capabilities.initialized = true;
 
+    if (!hasNotifyRcFile(QCoreApplication::applicationName())) {
+        return;
+    }
+
     if (QFileInfo::exists(u"/.flatpak-info"_s)) {
         // technically only for Plasma >= 6.7, but we have no way to detect that
         s_capabilities.hasSystemSettingsUri = qgetenv("XDG_CURRENT_DESKTOP") == "KDE";
@@ -53,7 +71,7 @@ static void detectCapabilities()
 bool KNotificationConfiguration::isAvailable()
 {
 #ifdef Q_OS_ANDROID
-    return true;
+    return hasNotifyRcFile(QCoreApplication::applicationName());
 #else
     detectCapabilities();
     return s_capabilities.hasSystemSettingsUri || s_capabilities.hasKcm;
diff --git a/src/knotificationconfiguration.h b/src/knotificationconfiguration.h
index 7412befb..fd2dd018 100644
--- a/src/knotificationconfiguration.h
+++ b/src/knotificationconfiguration.h
@@ -25,6 +25,9 @@ class KNotificationConfigurationPrivate;
  * This is particularly relevant for sandboxed applications (Flatpak, APK, etc)
  * where the host platform ultimately decides if/how notifications are shown.
  *
+ * This requires an installed \c .notifyrc file matching the application name
+ * to work, a \c .notifyrc file bundled as Qt resource will only work on Android.
+ *
  * \since 6.28
  */
 class KNOTIFICATIONS_EXPORT KNotificationConfiguration