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Vaadin is a web application framework for Rich Internet Applications (RIA).
Vaadin enables easy development and maintenance of fast and
secure rich web
applications with a stunning look and feel and a wide browser support.
It features a server-side architecture with the majority of the logic
running
on the server. Ajax technology is used at the browser-side to ensure a
rich
and interactive user experience.
/*
* Copyright 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.user.client.ui;
/**
* Implemented by objects that have the visibility trait.
*/
public interface HasVisibility {
/**
* Determines whether or not this object is visible. Note that this does not
* necessarily take into account whether or not the receiver's parent is
* visible, or even if it is attached to the
* {@link com.google.gwt.dom.client.Document Document}. The default
* implementation of this trait in {@link UIObject} is based on the value of a
* dom element's style object's display attribute.
*
* @return true if the object is visible
*/
boolean isVisible();
/**
* Sets whether this object is visible.
*
* @param visible true to show the object, false to
* hide it
*/
void setVisible(boolean visible);
}