cursor: refactor override handling (#12166)

much cleaner and more reliable. Should fix https://github.com/hyprwm/Hyprland/issues/12088

1 files changed, 49 insertions, 0 deletions

diff --git a/src/managers/cursor/CursorShapeOverrideController.hpp b/src/managers/cursor/CursorShapeOverrideController.hpp
new file mode 100644
index 00000000..eca2ccf7
--- /dev/null
+++ b/src/managers/cursor/CursorShapeOverrideController.hpp
@@ -0,0 +1,49 @@
+#pragma once
+
+#include "../../helpers/memory/Memory.hpp"
+#include "../../helpers/signal/Signal.hpp"
+
+#include <array>
+#include <string>
+
+namespace Cursor {
+    enum eCursorShapeOverrideGroup : uint8_t {
+        // unknown group - lowest priority
+        CURSOR_OVERRIDE_UNKNOWN = 0,
+        // window edges for resizing from edge
+        CURSOR_OVERRIDE_WINDOW_EDGE,
+        // Drag and drop
+        CURSOR_OVERRIDE_DND,
+        // special action: Interactive::CDrag, kill, etc.
+        CURSOR_OVERRIDE_SPECIAL_ACTION,
+
+        //
+        CURSOR_OVERRIDE_END,
+    };
+
+    class CShapeOverrideController {
+      public:
+        CShapeOverrideController()  = default;
+        ~CShapeOverrideController() = default;
+
+        CShapeOverrideController(const CShapeOverrideController&) = delete;
+        CShapeOverrideController(CShapeOverrideController&)       = delete;
+        CShapeOverrideController(CShapeOverrideController&&)      = delete;
+
+        void setOverride(const std::string& name, eCursorShapeOverrideGroup group);
+        void unsetOverride(eCursorShapeOverrideGroup group);
+
+        struct {
+            // if string is empty, override was cleared
+            CSignalT<const std::string&> overrideChanged;
+        } m_events;
+
+      private:
+        void                                         recheckOverridesResendIfChanged();
+
+        std::array<std::string, CURSOR_OVERRIDE_END> m_overrides;
+        std::string                                  m_overrideShape;
+    };
+
+    inline UP<CShapeOverrideController> overrideController = makeUnique<CShapeOverrideController>();
+};
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