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/*
* Copyright 2011 Vaadin Ltd.
*
* 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.vaadin.ui;
import java.util.Iterator;
/**
* Interface that must be implemented by all {@link Component}s that contain
* other {@link Component}s.
*
* @author Vaadin Ltd
* @since 7.0.0
*
*/
public interface HasComponents extends Component, Iterable<Component> {
/**
* Gets an iterator to the collection of contained components. Using this
* iterator it is possible to step through all components contained in this
* container.
*
* @return the component iterator.
*
* @deprecated Use {@link #iterator()} instead.
*/
@Deprecated
public Iterator<Component> getComponentIterator();
/**
* Checks if the child component is visible. This method allows hiding a
* child component from updates and communication to and from the client.
* This is useful for components that show only a limited number of its
* children at any given time and want to allow updates only for the
* children that are visible (e.g. TabSheet has one tab open at a time).
* <p>
* Note that this will prevent updates from reaching the child even though
* the child itself is set to visible. Also if a child is set to invisible
* this will not force it to be visible.
* </p>
*
* @param childComponent
* The child component to check
* @return true if the child component is visible to the user, false
* otherwise
*/
public boolean isComponentVisible(Component childComponent);
}
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