renderer: remove widgets for destroyed lockSurfaces

src/core/hyprlock.cpp

@@ -300,7 +300,11 @@ void CHyprlock::onGlobal(void* data, struct wl_registry* registry, uint32_t name
 
 void CHyprlock::onGlobalRemoved(void* data, struct wl_registry* registry, uint32_t name) {
     Debug::log(LOG, "  | removed iface {}", name);
-    std::erase_if(m_vOutputs, [name](const auto& other) { return other->name == name; });
+    auto outputIt = std::find_if(m_vOutputs.begin(), m_vOutputs.end(), [name](const auto& other) { return other->name == name; });
+    if (outputIt != m_vOutputs.end()) {
+        g_pRenderer->removeWidgetsFor(outputIt->get()->sessionLockSurface.get());
+        m_vOutputs.erase(outputIt);
+    }
 }
 
 // end wl_registry

src/renderer/Renderer.cpp

@@ -512,3 +512,7 @@ void CRenderer::popFb() {
     boundFBs.pop_back();
     glBindFramebuffer(GL_DRAW_FRAMEBUFFER, boundFBs.empty() ? 0 : boundFBs.back());
 }
+
+void CRenderer::removeWidgetsFor(const CSessionLockSurface* surf) {
+    widgets.erase(surf);
+}

src/renderer/Renderer.hpp

@@ -41,6 +41,8 @@ class CRenderer {
     void                                    pushFb(GLint fb);
     void                                    popFb();
 
+    void                                    removeWidgetsFor(const CSessionLockSurface* surf);
+
   private:
     widgetMap_t                            widgets;