session-lock: move unlock logic to single place

src/ifs/ext_session_lock_v1.rs

@@ -87,16 +87,7 @@ impl ExtSessionLockV1RequestHandler for ExtSessionLockV1 {
             return Err(ExtSessionLockV1Error::NeverLocked);
         }
         if !self.finished.get() {
-            let state = &self.client.state;
-            state.lock.locked.set(false);
-            state.lock.lock.take();
-            for output in state.root.outputs.lock().values() {
-                if let Some(surface) = output.set_lock_surface(None) {
-                    surface.destroy_node();
-                }
-            }
-            state.tree_changed();
-            state.damage();
+            self.client.state.do_unlock();
         }
         self.client.remove_obj(self)?;
         Ok(())

src/ifs/jay_compositor.rs

@@ -216,19 +216,12 @@ impl JayCompositorRequestHandler for JayCompositor {
 
     fn unlock(&self, _req: Unlock, _slf: &Rc<Self>) -> Result<(), Self::Error> {
         let state = &self.client.state;
-        if state.lock.locked.replace(false) {
-            if let Some(lock) = state.lock.lock.take() {
+        if state.lock.locked.get() {
+            if let Some(lock) = state.lock.lock.get() {
                 lock.finish();
             }
-            for output in state.root.outputs.lock().values() {
-                if let Some(surface) = output.set_lock_surface(None) {
-                    surface.destroy_node();
-                }
-            }
-            state.tree_changed();
-            state.damage();
+            state.do_unlock();
         }
-        self.client.symmetric_delete.set(true);
         Ok(())
     }
 

src/state.rs

@@ -736,6 +736,18 @@ impl State {
         }
     }
 
+    pub fn do_unlock(&self) {
+        self.lock.locked.set(false);
+        self.lock.lock.take();
+        for output in self.root.outputs.lock().values() {
+            if let Some(surface) = output.set_lock_surface(None) {
+                surface.destroy_node();
+            }
+        }
+        self.tree_changed();
+        self.damage();
+    }
+
     pub fn clear(&self) {
         self.lock.lock.take();
         self.xwayland.handler.borrow_mut().take();