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, 5 insertions, 0 deletions

diff --git a/src/managers/CursorManager.cpp b/src/managers/CursorManager.cpp
index fa5ee8cd..3fcecfe4 100644
--- a/src/managers/CursorManager.cpp
+++ b/src/managers/CursorManager.cpp
@@ -53,6 +53,11 @@ CCursorManager::CCursorManager() {
     static auto P = g_pHookSystem->hookDynamic("monitorLayoutChanged", [this](void* self, SCallbackInfo& info, std::any param) { this->updateTheme(); });
 }
 
+CCursorManager::~CCursorManager() {
+    if (m_pWLRXCursorMgr)
+        wlr_xcursor_manager_destroy(m_pWLRXCursorMgr);
+}
+
 void CCursorManager::dropBufferRef(CCursorManager::CCursorBuffer* ref) {
     std::erase_if(m_vCursorBuffers, [ref](const auto& buf) { return buf.get() == ref; });
 }