[gtk/dnd-gestures-2: 88/150] gdk/x11: Forward suggested action (if any) to XdndStatus

[Matthias Clasen <matthiasc src gnome org>]

commit ae82788aa49fb6f9020cdd3080999191c1679cbc
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Jan 5 20:20:20 2020 +0100

    gdk/x11: Forward suggested action (if any) to XdndStatus
    
    Go ahead with the suggested action, so the drag source may update
    cursor feedback properly, and eventually result in the correct
    action.

 gdk/x11/gdkdrop-x11.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)
---
diff --git a/gdk/x11/gdkdrop-x11.c b/gdk/x11/gdkdrop-x11.c
index b0d9457b3b..bbf377f898 100644
--- a/gdk/x11/gdkdrop-x11.c
+++ b/gdk/x11/gdkdrop-x11.c
@@ -747,7 +747,7 @@ gdk_x11_drop_status (GdkDrop       *drop,
                      GdkDragAction  actions)
 {
   GdkX11Drop *drop_x11 = GDK_X11_DROP (drop);
-  GdkDragAction possible_actions;
+  GdkDragAction possible_actions, suggested_action;
   XEvent xev;
   GdkDisplay *display;
 
@@ -755,6 +755,17 @@ gdk_x11_drop_status (GdkDrop       *drop,
 
   possible_actions = actions & gdk_drop_get_actions (drop);
 
+  if (drop_x11->suggested_action != 0)
+    suggested_action = drop_x11->suggested_action;
+  else if (possible_actions & GDK_ACTION_COPY)
+    suggested_action = GDK_ACTION_COPY;
+  else if (possible_actions & GDK_ACTION_MOVE)
+    suggested_action = GDK_ACTION_MOVE;
+  else if (possible_actions & GDK_ACTION_ASK)
+    suggested_action = GDK_ACTION_ASK;
+  else
+    suggested_action = 0;
+
   xev.xclient.type = ClientMessage;
   xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndStatus");
   xev.xclient.format = 32;
@@ -764,7 +775,7 @@ gdk_x11_drop_status (GdkDrop       *drop,
   xev.xclient.data.l[1] = (possible_actions != 0) ? (2 | 1) : 0;
   xev.xclient.data.l[2] = 0;
   xev.xclient.data.l[3] = 0;
-  xev.xclient.data.l[4] = xdnd_action_to_atom (display, possible_actions);
+  xev.xclient.data.l[4] = xdnd_action_to_atom (display, suggested_action);
 
   if (gdk_drop_get_drag (drop))
     {