Always send wheel events on XI2

* src/xterm.c (handle_one_xevent): Send emulated button events
as wheel events when handling XI2 button events.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 6efefd0301d..629a098b553 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -11391,6 +11391,28 @@ handle_one_xevent (struct x_display_info *dpyinfo,
 
               if (f)
                 {
+                  if (xev->detail >= 4 && xev->detail <= 8)
+                    {
+                      if (xev->detail <= 5)
+                        inev.ie.kind = WHEEL_EVENT;
+                      else
+                        inev.ie.kind = HORIZ_WHEEL_EVENT;
+
+                      inev.ie.timestamp = xev->time;
+
+                      XSETINT (inev.ie.x, lrint (xev->event_x));
+                      XSETINT (inev.ie.y, lrint (xev->event_y));
+                      XSETFRAME (inev.ie.frame_or_window, f);
+
+                      inev.ie.modifiers
+                        |= x_x_to_emacs_modifiers (dpyinfo,
+                                                   xev->mods.effective);
+
+                      inev.ie.modifiers |= xev->detail % 2 ? down_modifier : up_modifier;
+
+                      goto XI_OTHER;
+                    }
+
                   /* Is this in the tab-bar?  */
                   if (WINDOWP (f->tab_bar_window)
                       && WINDOW_TOTAL_LINES (XWINDOW (f->tab_bar_window)))