hyprland/focus_grab: add HyprlandFocusGrab

src/wayland/hyprland/focus_grab/grab.hpp

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <private/qwaylandwindow_p.h>
+#include <qlist.h>
+#include <qobject.h>
+#include <qtclasshelpermacros.h>
+#include <qtmetamacros.h>
+#include <qwayland-hyprland-focus-grab-v1.h>
+#include <qwindow.h>
+#include <wayland-hyprland-focus-grab-v1-client-protocol.h>
+
+namespace qs::hyprland::focus_grab {
+using HyprlandFocusGrab = QtWayland::hyprland_focus_grab_v1;
+
+class FocusGrab
+    : public QObject
+    , public HyprlandFocusGrab {
+	using QWaylandWindow = QtWaylandClient::QWaylandWindow;
+
+	Q_OBJECT;
+
+public:
+	explicit FocusGrab(::hyprland_focus_grab_v1* grab);
+	~FocusGrab() override;
+	Q_DISABLE_COPY_MOVE(FocusGrab);
+
+	[[nodiscard]] bool isActive() const;
+	void addWindow(QWindow* window);
+	void removeWindow(QWindow* window);
+	void sync();
+
+signals:
+	void activated();
+	void cleared();
+
+private:
+	void hyprland_focus_grab_v1_cleared() override;
+
+	void addWaylandWindow(QWaylandWindow* window);
+
+	QList<QWaylandWindow*> pendingAdditions;
+	bool commitRequired = false;
+	bool active = false;
+};
+
+} // namespace qs::hyprland::focus_grab