cursor: refactor override handling (#12166)

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

1 files changed, 43 insertions, 0 deletions

diff --git a/src/managers/cursor/CursorShapeOverrideController.cpp b/src/managers/cursor/CursorShapeOverrideController.cpp
new file mode 100644
index 00000000..45064277
--- /dev/null
+++ b/src/managers/cursor/CursorShapeOverrideController.cpp
@@ -0,0 +1,43 @@
+#include "CursorShapeOverrideController.hpp"
+
+#include <ranges>
+
+using namespace Cursor;
+
+void CShapeOverrideController::setOverride(const std::string& name, eCursorShapeOverrideGroup group) {
+    if (m_overrides[group] == name)
+        return;
+
+    m_overrides[group] = name;
+
+    recheckOverridesResendIfChanged();
+}
+
+void CShapeOverrideController::unsetOverride(eCursorShapeOverrideGroup group) {
+    if (m_overrides[group].empty())
+        return;
+
+    m_overrides[group] = "";
+
+    recheckOverridesResendIfChanged();
+}
+
+void CShapeOverrideController::recheckOverridesResendIfChanged() {
+    for (const auto& s : m_overrides | std::views::reverse) {
+        if (s.empty())
+            continue;
+
+        if (s == m_overrideShape)
+            return;
+
+        m_overrideShape = s;
+        m_events.overrideChanged.emit(s);
+        return;
+    }
+
+    if (m_overrideShape.empty())
+        return;
+
+    m_overrideShape = "";
+    m_events.overrideChanged.emit("");
+}