Fix pointer event tracking on top of Haiku scroll bars

* src/haiku_support.cc (MouseDown): Set correct mouse event mask
in case the scroll bar widget decides to not do that.

diff --git a/src/haiku_support.cc b/src/haiku_support.cc
index a14600cb33884141ac0cc087f017b4ab768df463..9c9aa7f35bf51dfccf2340e17091446d3cc7aead 100644 (file)
--- a/src/haiku_support.cc
+++ b/src/haiku_support.cc
@@ -1817,6 +1817,9 @@ public:
     rq.window = Window ();
     rq.scroll_bar = this;
 
+    SetMouseEventMask (B_POINTER_EVENTS, (B_SUSPEND_VIEW_FOCUS
+                                         | B_LOCK_WINDOW_FOCUS));
+
     haiku_write (SCROLL_BAR_DRAG_EVENT, &rq);
 
   out: