drag_data_received

The drag_data_received signal is emitted on the drop site when the dragged data has been received.

If the data was received in order to determine whether the drop will be accepted, the handler is expected to call drag_status and not finish the drag. If the data was received in response to a drag_drop signal (and this is the last target to be received), the handler for this signal is expected to process the received data and then call drag_finish, setting the success parameter depending on whether the data was processed successfully.

Applications must create some means to determine why the signal was emitted and therefore whether to call drag_status or drag_finish .

The handler may inspect the selected action with get_selected_action before calling drag_finish, e.g. to implement gdk_action_ask as shown in the following example:

void
drag_data_received (GtkWidget          *widget,
                    GdkDragContext     *context,
                    gint                x,
                    gint                y,
                    GtkSelectionData   *data,
                    guint               info,
                    guint               time)
{
  if ((data->length >= 0) && (data->format == 8))
    {
      GdkDragAction action;

      // handle data here

      action = gdk_drag_context_get_selected_action (context);
      if (action == GDK_ACTION_ASK)
        {
          GtkWidget *dialog;
          gint response;

          dialog = gtk_message_dialog_new (NULL,
                                           GTK_DIALOG_MODAL |
                                           GTK_DIALOG_DESTROY_WITH_PARENT,
                                           GTK_MESSAGE_INFO,
                                           GTK_BUTTONS_YES_NO,
                                           "Move the data ?\n");
          response = gtk_dialog_run (GTK_DIALOG (dialog));
          gtk_widget_destroy (dialog);

          if (response == GTK_RESPONSE_YES)
            action = GDK_ACTION_MOVE;
          else
            action = GDK_ACTION_COPY;
         }

      gtk_drag_finish (context, TRUE, action == GDK_ACTION_MOVE, time);
    }
  else
    gtk_drag_finish (context, FALSE, FALSE, time);
 }

Parameters: