protocols/outputMgmt: fix reload not being fired after no-op commits (#15570)

ref #15526

src/config/shared/monitor/MonitorRuleManager.cpp

@@ -12,6 +12,7 @@
 #include "../../../state/MonitorState.hpp"
 
 #include <ranges>
+#include <hyprutils/utils/ScopeGuard.hpp>
 
 using namespace Config;
 
@@ -131,7 +132,9 @@ void CMonitorRuleManager::scheduleReload() {
 }
 
 void CMonitorRuleManager::ensureMonitorStatus() {
-    std::vector<PHLMONITOR> monsForRefresh;
+    std::vector<PHLMONITOR>       monsForRefresh;
+
+    Hyprutils::Utils::CScopeGuard x([this] { m_events.stateReloaded.emit(); });
 
     for (auto const& m : State::monitorState()->allMonitors()) {
         if (!m || !m->m_output || m->m_isUnsafeFallback)

src/config/shared/monitor/MonitorRuleManager.hpp

@@ -26,6 +26,10 @@ namespace Config {
         const std::vector<CMonitorRule>& all();
         std::vector<CMonitorRule>&       allMut();
 
+        struct {
+            CSignalT<> stateReloaded;
+        } m_events;
+
       private:
         std::vector<CMonitorRule> m_rules;
         bool                      m_reloadScheduled = false;

src/protocols/OutputManagement.cpp

@@ -577,7 +577,7 @@ bool COutputConfigurationHead::good() {
 }
 
 COutputManagementProtocol::COutputManagementProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
-    static auto P = Event::bus()->m_events.monitor.layoutChanged.listen([this] {
+    static auto P = Config::monitorRuleMgr()->m_events.stateReloaded.listen([this] {
         updateAllOutputs();
         sendPendingSuccessEvents();
     });