master 2e0c76e397: Fix sending button presses if the drop target specified a mouse rectangle

[Po Lu]

branch: master
commit 2e0c76e397811837fd119c1298a5606b4ef65be5
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Fix sending button presses if the drop target specified a mouse rectangle
    
    * src/xterm.c (x_dnd_send_position): Handle button presses
    specially, ignoring mouse rectangles.
---
 src/xterm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/xterm.c b/src/xterm.c
index 94fb0bfa1a..63b625f383 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -4455,7 +4455,10 @@ x_dnd_send_position (struct frame *f, Window target, int 
supported,
 
   if (target == x_dnd_mouse_rect_target
       && x_dnd_mouse_rect.width
-      && x_dnd_mouse_rect.height)
+      && x_dnd_mouse_rect.height
+      /* Ignore the mouse rectangle if we're supposed to be sending a
+        button press instead.  */
+      && (supported < 5 || !button))
     {
       if (root_x >= x_dnd_mouse_rect.x
          && root_x < (x_dnd_mouse_rect.x