input: add cursor:persistent_warps to maintain relative position within a window (#6338)

Allows the cursor to return to its last relative position within a window when the window is refocused.

Allows the cursor to retain its relative position within a window when the window is swapped, moved, changed workspace, added to or removed from groups.

controlled with cursor:persistent_warps

1 files changed, 12 insertions, 1 deletions

diff --git a/src/desktop/Window.cpp b/src/desktop/Window.cpp
index 9f5f9dd3..c478b766 100644
--- a/src/desktop/Window.cpp
+++ b/src/desktop/Window.cpp
@@ -1356,7 +1356,7 @@ void CWindow::activate(bool force) {
         g_pCompositor->changeWindowZOrder(m_pSelf.lock(), true);
 
     g_pCompositor->focusWindow(m_pSelf.lock());
-    g_pCompositor->warpCursorTo(middle());
+    warpCursor();
 }
 
 void CWindow::onUpdateState() {
@@ -1530,3 +1530,14 @@ void CWindow::onX11Configure(CBox box) {
 
     g_pHyprRenderer->damageWindow(m_pSelf.lock());
 }
+
+void CWindow::warpCursor() {
+    static auto PERSISTENTWARPS         = CConfigValue<Hyprlang::INT>("cursor:persistent_warps");
+    const auto  coords                  = m_vRelativeCursorCoordsOnLastWarp;
+    m_vRelativeCursorCoordsOnLastWarp.x = -1; // reset m_vRelativeCursorCoordsOnLastWarp
+
+    if (*PERSISTENTWARPS && coords.x > 0 && coords.y > 0 && coords < m_vSize) // don't warp cursor outside the window
+        g_pCompositor->warpCursorTo(m_vPosition + coords);
+    else
+        g_pCompositor->warpCursorTo(middle());
+}