internal: wrap wlr surfaces (#1822)

src/helpers/WLSurface.cpp

@@ -0,0 +1,51 @@
+#include "WLSurface.hpp"
+#include "../Compositor.hpp"
+
+CWLSurface::CWLSurface(wlr_surface* pSurface) {
+    m_pWLRSurface = pSurface;
+    init();
+}
+
+void CWLSurface::assign(wlr_surface* pSurface) {
+    m_pWLRSurface = pSurface;
+    init();
+}
+
+CWLSurface::~CWLSurface() {
+    destroy();
+}
+
+bool CWLSurface::exists() const {
+    return m_pWLRSurface;
+}
+
+wlr_surface* CWLSurface::wlr() const {
+    return m_pWLRSurface;
+}
+
+void CWLSurface::destroy() {
+    if (!m_pWLRSurface)
+        return;
+
+    hyprListener_destroy.removeCallback();
+    m_pWLRSurface->data = nullptr;
+
+    if (g_pCompositor->m_pLastFocus == m_pWLRSurface)
+        g_pCompositor->m_pLastFocus = nullptr;
+
+    Debug::log(LOG, "CWLSurface %x called destroy()", this);
+}
+
+void CWLSurface::init() {
+    if (!m_pWLRSurface)
+        return;
+
+    RASSERT(!m_pWLRSurface->data, "Attempted to duplicate CWLSurface ownership!");
+
+    m_pWLRSurface->data = this;
+
+    hyprListener_destroy.initCallback(
+        &m_pWLRSurface->events.destroy, [&](void* owner, void* data) { destroy(); }, this, "CWLSurface");
+
+    Debug::log(LOG, "CWLSurface %x called init()", this);
+}