Fix use of up and down arrows when the candidate window is not visible.

src/IBusChewingEngine.gob

 requires 2.0.0
 
 %alltop{
 /*
  * Copyright © 2009  Red Hat, Inc. All rights reserved.
  * Copyright © 2009  Ding-Yi Chen <dchen at redhat.com>
  *
  * This file is part of the ibus-chewing Project.
  *
  * This program is free software; you can redistribute it and/or
@@ skipping 923 matching lines @@
     override (IBus:Engine) void
     page_down(IBus:Engine *engine){
         Self *self=SELF(engine);
         chewing_handle_PageDown(self->context);
         self_update(self);
     }
 
     override (IBus:Engine) void
     cursor_up(IBus:Engine *engine){
         Self *self=SELF(engine);
-        //chewing_handle_Up(self->context);
-        self_cursor_prev(self);
-        self_update(self);
-        ibus_lookup_table_set_cursor_pos(self->table, self->tableCursor);
-        ibus_engine_update_lookup_table(IBUS_ENGINE(self),self->table,TRUE);
+        if (self->tableVisible){
+            self_cursor_prev(self);
+            self_update(self);
+            ibus_lookup_table_set_cursor_pos(self->table, self->tableCursor);
+            ibus_engine_update_lookup_table(IBUS_ENGINE(self),self->table,TRUE);
+        } else {
+            chewing_handle_Up(self->context);
+            self_update(self);
+        }
     }
 
     override (IBus:Engine) void
     cursor_down(IBus:Engine *engine){
         Self *self=SELF(engine);
-        //chewing_handle_Down(self->context);
-        self_cursor_next(self);
-        self_update(self);
-        ibus_lookup_table_set_cursor_pos(self->table, self->tableCursor);
-        ibus_engine_update_lookup_table(IBUS_ENGINE(self),self->table,TRUE);
+        if (self->tableVisible){
+            self_cursor_next(self);
+            self_update(self);
+            ibus_lookup_table_set_cursor_pos(self->table, self->tableCursor);
+            ibus_engine_update_lookup_table(IBUS_ENGINE(self),self->table,TRUE);
+        } else {
+            chewing_handle_Down(self->context);
+            self_update(self);
+        }
     }
 
     override (IBus:Engine) void
     enable(IBus:Engine  *engine){
         G_DEBUG_MSG(2,"[I2] enable()");
         Self *self=SELF(engine);
 
         if (!self->config){
 
             /* connections_list is not avail in init, so we put it here */
@@ skipping 103 matching lines @@
         IBusProperty *prop=self_get_iBusProperty(self, prop_name);
         ibus_property_set_visible(prop,FALSE);
         ibus_engine_update_property(engine,prop);
     }
 }
 
 %{
 #include "IBusChewingEngine-keys.c"
 %}