From ddfea3a29c9badf6dabe12be86e4c5ba6d5507ad Mon Sep 17 00:00:00 2001
From: Virt <41426325+VirtCode@users.noreply.github.com>
Date: Thu, 19 Sep 2024 21:40:21 +0200
Subject: [PATCH] fix: hide hw cursor on leave like hl

see https://github.com/hyprwm/Hyprland/commit/e6cf643f5ab1c1545fb858ab1fd9d7538ef9e0f3
---
 src/cursor.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/cursor.cpp b/src/cursor.cpp
index d66013e..e0663b6 100644
--- a/src/cursor.cpp
+++ b/src/cursor.cpp
@@ -328,11 +328,25 @@ void CDynamicCursors::onCursorMoved(CPointerManager* pointers) {
     if (!pointers->hasCursor())
         return;
 
+    const auto CURSORBOX = pointers->getCursorBoxGlobal();
+    bool       recalc    = false;
+
     for (auto& m : g_pCompositor->m_vMonitors) {
         auto state = pointers->stateFor(m);
 
         state->box = pointers->getCursorBoxLogicalForMonitor(state->monitor.lock());
 
+        auto CROSSES = !m->logicalBox().intersection(CURSORBOX).empty();
+
+        if (!CROSSES && state->cursorFrontBuffer) {
+            Debug::log(TRACE, "onCursorMoved for output {}: cursor left the viewport, removing it from the backend", m->szName);
+            pointers->setHWCursorBuffer(state, nullptr);
+            continue;
+        } else if (CROSSES && !state->cursorFrontBuffer) {
+            Debug::log(TRACE, "onCursorMoved for output {}: cursor entered the output, but no front buffer, forcing recalc", m->szName);
+            recalc = true;
+        }
+
         if (state->hardwareFailed || !state->entered)
             continue;
 
@@ -340,6 +354,9 @@ void CDynamicCursors::onCursorMoved(CPointerManager* pointers) {
         m->output->moveCursor(CURSORPOS);
     }
 
+    if (recalc)
+        pointers->updateCursorBackend();
+
     // ignore warp
     if (!isMove && **PIGNORE_WARPS) {
         auto mode = this->currentMode();