core: immediately create session lock surfaces (#421)

* core: immediately create session lock surfaces

Instead of waiting for the `locked` event, create session lock surfaces
right away.

* core: don't allow unlock_and_destroy if `locked` has never been recieved

src/core/hyprlock.cpp

@@ -400,6 +400,9 @@ void CHyprlock::run() {
 
     acquireSessionLock();
 
+    if (m_bTerminate) // Recieved finished
+        exit(1);
+
     g_pAuth = std::make_unique<CAuth>();
     g_pAuth->start();
 
@@ -409,6 +412,8 @@ void CHyprlock::run() {
     registerSignalAction(SIGSEGV, handleCriticalSignal);
     registerSignalAction(SIGABRT, handleCriticalSignal);
 
+    createSessionLockSurfaces();
+
     pollfd pollfds[] = {
         {
             .fd     = wl_display_get_fd(m_sWaylandState.display),
@@ -925,7 +930,7 @@ void CHyprlock::acquireSessionLock() {
     m_sLockState.lock = ext_session_lock_manager_v1_lock(m_sWaylandState.sessionLock);
     ext_session_lock_v1_add_listener(m_sLockState.lock, &sessionLockListener, nullptr);
 
-    // wait for wayland to signal whether the session lock has been acquired
+    // roundtrip in case the compositor sends `finished` right away
     wl_display_roundtrip(m_sWaylandState.display);
 }
 
@@ -936,6 +941,12 @@ void CHyprlock::releaseSessionLock() {
         return;
     }
 
+    if (!m_bLocked) {
+        // Would be a protocol error to allow this
+        Debug::log(ERR, "Trying to unlock the session, but never recieved the locked event!");
+        return;
+    }
+
     ext_session_lock_v1_unlock_and_destroy(m_sLockState.lock);
     m_sLockState.lock = nullptr;
 
@@ -947,12 +958,14 @@ void CHyprlock::releaseSessionLock() {
     wl_display_roundtrip(m_sWaylandState.display);
 }
 
-void CHyprlock::onLockLocked() {
-    Debug::log(LOG, "onLockLocked called");
-
+void CHyprlock::createSessionLockSurfaces() {
     for (auto& o : m_vOutputs) {
         o->sessionLockSurface = std::make_unique<CSessionLockSurface>(o.get());
     }
+}
+
+void CHyprlock::onLockLocked() {
+    Debug::log(LOG, "onLockLocked called");
 
     m_bLocked = true;
 }

src/core/hyprlock.hpp

@@ -46,6 +46,8 @@ class CHyprlock {
     void                            acquireSessionLock();
     void                            releaseSessionLock();
 
+    void                            createSessionLockSurfaces();
+
     void                            attemptRestoreOnDeath();
 
     void                            spawnAsync(const std::string& cmd);