| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you 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 org.apache.pivot.wtk; |
| |
| import org.apache.pivot.collections.Sequence; |
| |
| /** |
| * Container listener interface. |
| */ |
| public interface ContainerListener { |
| /** |
| * Container listener adapter. |
| */ |
| public static class Adapter implements ContainerListener { |
| @Override |
| public void componentInserted(Container container, int index) { |
| // empty block |
| } |
| |
| @Override |
| public void componentsRemoved(Container container, int index, Sequence<Component> removed) { |
| // empty block |
| } |
| |
| @Override |
| public void componentMoved(Container container, int from, int to) { |
| // empty block |
| } |
| |
| @Override |
| public void focusTraversalPolicyChanged(Container container, |
| FocusTraversalPolicy previousFocusTraversalPolicy) { |
| // empty block |
| } |
| } |
| |
| /** |
| * Called when a component has been inserted into a container's component |
| * sequence. |
| * |
| * @param container The container that has changed. |
| * @param index The index where the new component has been inserted. |
| */ |
| public void componentInserted(Container container, int index); |
| |
| /** |
| * Called when components have been removed from a container's component |
| * sequence. |
| * |
| * @param container The container that has changed. |
| * @param index The starting index of the components that were removed. |
| * @param removed The complete sequence of removed components. |
| */ |
| public void componentsRemoved(Container container, int index, Sequence<Component> removed); |
| |
| /** |
| * Called when a component has moved from one z-index to another within a |
| * container. |
| * |
| * @param container The container that has changed. |
| * @param from The starting index of the component (in Z-order). |
| * @param to The place in the Z-order where this component ended up. |
| */ |
| public void componentMoved(Container container, int from, int to); |
| |
| /** |
| * Called when a container's focus traversal policy has changed. |
| * |
| * @param container The container that has changed. |
| * @param previousFocusTraversalPolicy The previous value of the focus traversal policy for this container. |
| */ |
| public void focusTraversalPolicyChanged(Container container, |
| FocusTraversalPolicy previousFocusTraversalPolicy); |
| } |