lock: fix red screen issues with multiple monitors (#5100)

* lock: use uint64_t for iMonitorID

* lock: move activateLock to onNewSessionLock

* lock: add red screen fade

* lock: damage when fading the red screen and delay for screencopy

* lock: remove redundant scheduleFrameForMonitor

src/managers/SessionLockManager.hpp

@@ -1,10 +1,13 @@
 #pragma once
 
 #include "../defines.hpp"
+#include "../helpers/Timer.hpp"
+#include <cstdint>
+#include <unordered_map>
 
 struct SSessionLockSurface {
     wlr_session_lock_surface_v1* pWlrLockSurface = nullptr;
-    int                          iMonitorID      = -1;
+    uint64_t                     iMonitorID      = -1;
 
     bool                         mapped = false;
 
@@ -18,6 +21,7 @@ struct SSessionLock {
     wlr_session_lock_v1*                              pWlrLock = nullptr;
 
     std::vector<std::unique_ptr<SSessionLockSurface>> vSessionLockSurfaces;
+    std::unordered_map<uint64_t, CTimer>              mMonitorsWithoutMappedSurfaceTimers;
 
     DYNLISTENER(newSurface);
     DYNLISTENER(unlock);
@@ -30,7 +34,9 @@ class CSessionLockManager {
     ~CSessionLockManager() = default;
 
     void                 onNewSessionLock(wlr_session_lock_v1*);
-    SSessionLockSurface* getSessionLockSurfaceForMonitor(const int&);
+    SSessionLockSurface* getSessionLockSurfaceForMonitor(uint64_t);
+
+    float                getRedScreenAlphaForMonitor(uint64_t);
 
     bool                 isSessionLocked();
     bool                 isSurfaceSessionLock(wlr_surface*);