[mutter/wip/carlosg/selection-bugfixes: 18/19] xwayland: Set XDND source-side actions as per XDND



commit 090a6ad409ce0ea0bcf30b66cb1048dfdb86ab9e
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Jan 17 19:32:08 2020 +0100

    xwayland: Set XDND source-side actions as per XDND
    
    In XDND, we just get a hint on XdndPosition about what's the action
    chosen by the user. Make the data source actions the full set on
    XdndEnter (as we can't know better), and pass the hint in XdndPosition
    as the user chosen action as it should be.
    
    Makes Wayland drop sites aware of the user action as per XDND with X11
    drag sources, and still makes modifiers during DnD work.
    
    https://gitlab.gnome.org/GNOME/mutter/issues/974
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/1005

 src/wayland/meta-wayland-data-device.c | 6 +++---
 src/wayland/meta-wayland-data-device.h | 2 ++
 src/wayland/meta-xwayland-dnd.c        | 6 +++++-
 3 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/src/wayland/meta-wayland-data-device.c b/src/wayland/meta-wayland-data-device.c
index b209a2076..915744bae 100644
--- a/src/wayland/meta-wayland-data-device.c
+++ b/src/wayland/meta-wayland-data-device.c
@@ -345,9 +345,9 @@ meta_wayland_data_source_set_actions (MetaWaylandDataSource *source,
   priv->actions_set = TRUE;
 }
 
-static void
-meta_wayland_data_source_set_user_action (MetaWaylandDataSource                  *source,
-                                          enum wl_data_device_manager_dnd_action  action)
+void
+meta_wayland_data_source_set_user_action (MetaWaylandDataSource *source,
+                                          uint32_t               action)
 {
   MetaWaylandDataSourcePrivate *priv =
     meta_wayland_data_source_get_instance_private (source);
diff --git a/src/wayland/meta-wayland-data-device.h b/src/wayland/meta-wayland-data-device.h
index c61c241a5..027dafc54 100644
--- a/src/wayland/meta-wayland-data-device.h
+++ b/src/wayland/meta-wayland-data-device.h
@@ -121,6 +121,8 @@ uint32_t meta_wayland_data_source_get_current_action (MetaWaylandDataSource *sou
 
 void     meta_wayland_data_source_set_actions        (MetaWaylandDataSource *source,
                                                       uint32_t               dnd_actions);
+void     meta_wayland_data_source_set_user_action    (MetaWaylandDataSource *source,
+                                                      uint32_t               action);
 void     meta_wayland_data_source_set_current_action (MetaWaylandDataSource *source,
                                                       uint32_t               action);
 
diff --git a/src/wayland/meta-xwayland-dnd.c b/src/wayland/meta-xwayland-dnd.c
index fc88a6375..bb8f67d9d 100644
--- a/src/wayland/meta-xwayland-dnd.c
+++ b/src/wayland/meta-xwayland-dnd.c
@@ -787,6 +787,10 @@ meta_xwayland_dnd_handle_client_message (MetaWaylandCompositor *compositor,
                                                              xdnd_atoms[ATOM_DND_TYPE_LIST]);
             }
 
+          meta_wayland_data_source_set_actions (dnd->source,
+                                                WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY |
+                                                WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE |
+                                                WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK);
           meta_wayland_drag_grab_set_focus (drag_grab, dnd->focus_surface);
           return TRUE;
         }
@@ -806,7 +810,7 @@ meta_xwayland_dnd_handle_client_message (MetaWaylandCompositor *compositor,
           clutter_event_set_time (motion, dnd->last_motion_time);
 
           action = atom_to_action ((Atom) event->data.l[4]);
-          meta_wayland_data_source_set_actions (dnd->source, action);
+          meta_wayland_data_source_set_user_action (dnd->source, action);
 
           meta_wayland_surface_drag_dest_motion (drag_focus, motion);
           xdnd_send_status (dnd, (Window) event->data.l[0],


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