title: remove focus style of StoreFilterField in GWT
body: <p>I am looking for some ways to remove the x-form-foucs css style of <a href="http://dev.sencha.com/deploy/gxt-.2.1/docs/api/com/extjs/gxt/ui/client/widget/form/StoreFilterField.html" rel="nofollow">StoreFilterField</a>.
  <BR><BR>
  I have put a storeFilterFiled and some other textfield on a formPanel, if I want to typing some word into the textField, the cursor will turn back to storeFilterField after I clicked the textField, due to storeFilterField will always get focus..
  <BR><BR>
  Have tried to use removeStyleName("x-form-focus");, but doesn't work.</p>
  
  <p>--</p>
  
  <p>Updated:</p>
  
  <p>After having Tangent suggested, I have used chrome developer tool and breaks on attributes modification at the StoreFilterField. And when I click other field, I have got call stack.</p>
  
  <p>The stack as below:</p>
  
  <pre><code>com_extjs_gxt_ui_client_core_El_$removeStyleName
  </code></pre>
  
  <p>has called by <code>com_extjs_gxt_ui_client_widget_form_TriggerField_$triggerBlur</code> and the styleName been removed is "x-trigger-wrap-focus", TriggerField has been extended by StoreFilterField.</p>
  
  <p>And triggerBlur() is called by TriggerField_$mimicBlur. and mimicBlur() is called by</p>
  
  <pre><code>focusEventPreview = new BaseEventPreview() {
    protected boolean onAutoHide(final PreviewEvent ce) {
      if (ce.getEventTypeInt() == Event.ONMOUSEDOWN) {
        mimicBlur(ce, ce.getTarget());
      }
      return false;
    }
  };
  </code></pre>
  
  <p>Which is in TriggerField's onRender()</p>
  
  <p>The whole stack as below:</p>
  
  <pre><code>com_extjs_gxt_ui_client_core_El_$removeStyleName__Lcom_extjs_gxt_ui_client_core_El_2Ljava_lang_String_2Lcom_extjs_gxt_ui_client_core_El_2 (0.js:15459)
  com_extjs_gxt_ui_client_widget_Component_$removeStyleName__Lcom_extjs_gxt_ui_client_widget_Component_2Ljava_lang_String_2V (0.js:3276)
  com_extjs_gxt_ui_client_widget_form_TriggerField_$triggerBlur__Lcom_extjs_gxt_ui_client_widget_form_TriggerField_2Lcom_extjs_gxt_ui_client_event_ComponentEvent_2V (0.js:8032)
  com_extjs_gxt_ui_client_widget_form_TriggerField_triggerBlur__Lcom_extjs_gxt_ui_client_event_ComponentEvent_2V (0.js:8097)
  com_extjs_gxt_ui_client_widget_form_TriggerField_$mimicBlur__Lcom_extjs_gxt_ui_client_widget_form_TriggerField_2Lcom_extjs_gxt_ui_client_event_PreviewEvent_2Lcom_google_gwt_user_client_Element_2V (0.js:7962)
  com_extjs_gxt_ui_client_widget_form_TriggerField$1_onAutoHide__Lcom_extjs_gxt_ui_client_event_PreviewEvent_2Z (0.js:29870)
  com_extjs_gxt_ui_client_util_BaseEventPreview_$onAutoHidePreview__Lcom_extjs_gxt_ui_client_util_BaseEventPreview_2Lcom_extjs_gxt_ui_client_event_PreviewEvent_2Z (0.js:14039)
  com_extjs_gxt_ui_client_util_BaseEventPreview_onPreviewNativeEvent__Lcom_google_gwt_user_client_Event$NativePreviewEvent_2V (0.js:14114)
  com_google_gwt_user_client_Event$NativePreviewEvent_$dispatch__Lcom_google_gwt_user_client_Event$NativePreviewEvent_2Lcom_google_gwt_user_client_Event$NativePreviewHandler_2V (0.js:42152)
  com_google_gwt_user_client_Event$NativePreviewEvent_dispatch__Lcom_google_gwt_event_shared_EventHandler_2V (0.js:42216)
  com_google_gwt_event_shared_GwtEvent_dispatch__Ljava_lang_Object_2V (0.js:35511)
  com_google_web_bindery_event_shared_EventBus_dispatchEvent__Lcom_google_web_bindery_event_shared_Event_2Ljava_lang_Object_2V (0.js:35907)
  com_google_web_bindery_event_shared_SimpleEventBus_$doFire__Lcom_google_web_bindery_event_shared_SimpleEventBus_2Lcom_google_web_bindery_event_shared_Event_2Ljava_lang_Object_2V (0.js:35959)
  com_google_web_bindery_event_shared_SimpleEventBus_$fireEvent__Lcom_google_web_bindery_event_shared_SimpleEventBus_2Lcom_google_web_bindery_event_shared_Event_2V (0.js:36017)
  com_google_gwt_event_shared_HandlerManager_$fireEvent__Lcom_google_gwt_event_shared_HandlerManager_2Lcom_google_gwt_event_shared_GwtEvent_2V (0.js:35860)
  com_google_gwt_user_client_Event$NativePreviewEvent_fire__Lcom_google_gwt_event_shared_HandlerManager_2Lcom_google_gwt_dom_client_NativeEvent_2Z (0.js:42198)
  com_google_gwt_user_client_Event_fireNativePreviewEvent__Lcom_google_gwt_dom_client_NativeEvent_2Z (0.js:42136)
  com_google_gwt_user_client_DOM_previewEvent__Lcom_google_gwt_user_client_Event_2Z (0.js:41948)
  (anonymous function) (0.js:42654)
  com_google_gwt_core_client_impl_Impl_apply__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2 (0.js:33472)
  com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2 (0.js:33531)
  (anonymous function) (0.js:33502)
  (anonymous function) (0.js:42689)
  com_google_gwt_core_client_impl_Impl_apply__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2 (0.js:33472)
  com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2 (0.js:33531)
  (anonymous function) (0.js:33502)
  </code></pre>
  
  <p>Any help is appreciated.</p>