internal: wrap wlr surfaces (#1822)

src/helpers/WLSurface.hpp

@@ -0,0 +1,48 @@
+#pragma once
+
+#include "../defines.hpp"
+
+class CWLSurface {
+  public:
+    CWLSurface() = default;
+    CWLSurface(wlr_surface* pSurface);
+    ~CWLSurface();
+
+    void assign(wlr_surface* pSurface);
+
+    CWLSurface(const CWLSurface&) = delete;
+    CWLSurface(CWLSurface&&)      = delete;
+    CWLSurface&  operator=(const CWLSurface&) = delete;
+    CWLSurface&  operator=(CWLSurface&&) = delete;
+
+    wlr_surface* wlr() const;
+    bool         exists() const;
+
+    CWLSurface&  operator=(wlr_surface* pSurface) {
+        destroy();
+        m_pWLRSurface = pSurface;
+        init();
+
+        return *this;
+    }
+
+    bool operator==(const CWLSurface& other) const {
+        return other.wlr() == wlr();
+    }
+
+    bool operator==(const wlr_surface* other) const {
+        return other == wlr();
+    }
+
+    explicit operator bool() const {
+        return exists();
+    }
+
+  private:
+    wlr_surface* m_pWLRSurface = nullptr;
+
+    void         destroy();
+    void         init();
+
+    DYNLISTENER(destroy);
+};