internal: fix a few asan reported leaks on exit of hyprland (#5852)

* notifications: free cairo images on destruction

asan reports a leak on exit if we dont free the image we created in the
draw function. add a destructor and free images on exit.

* compositor: destroy wlroots types on exit

there are a few types not being destroyed on exit and causing a leak on
exit in wlroots reported by asan, add those.

* cursormgr: ensure we destroy cursor mgr on exit

add a destructor and call wlr_xcursor_manager_destroy on the manager on
destruction, leak reported by asan.

* keybindmgr: free state and keymap

add missing keymap_unref on creation, and add a destructor and free the
state on exit. leak reported by asan.

* skeyboard: add destructor and free state

free the state on destruction of keyboard, reported as leak by asan

1 files changed, 15 insertions, 1 deletions

diff --git a/src/Compositor.cpp b/src/Compositor.cpp
index 3f53f6c3..ea88bec1 100644
--- a/src/Compositor.cpp
+++ b/src/Compositor.cpp
@@ -421,8 +421,22 @@ void CCompositor::cleanup() {
     g_pWatchdog.reset();
     g_pXWaylandManager.reset();
 
-    wl_display_terminate(m_sWLDisplay);
+    if (m_sWLRCursor)
+        wlr_cursor_destroy(m_sWLRCursor);
+
+    if (m_sSeat.seat)
+        wlr_seat_destroy(m_sSeat.seat);
+
+    if (m_sWLRRenderer)
+        wlr_renderer_destroy(m_sWLRRenderer);
+
+    if (m_sWLRAllocator)
+        wlr_allocator_destroy(m_sWLRAllocator);
 
+    if (m_sWLRBackend)
+        wlr_backend_destroy(m_sWLRBackend);
+
+    wl_display_terminate(m_sWLDisplay);
     m_sWLDisplay = nullptr;
 }