1 /*
2 * Copyright 2004-2008 the Seasar Foundation and the Others.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
13 * either express or implied. See the License for the specific language
14 * governing permissions and limitations under the License.
15 */
16 package org.seasar.uruma.component.base;
17
18 import java.util.ArrayList;
19 import java.util.Collections;
20 import java.util.List;
21
22 import org.seasar.uruma.component.UIComponent;
23 import org.seasar.uruma.component.UIComponentContainer;
24 import org.seasar.uruma.component.UIElement;
25 import org.seasar.uruma.context.PartContext;
26 import org.seasar.uruma.context.WidgetHandle;
27 import org.seasar.uruma.context.WindowContext;
28 import org.seasar.uruma.util.AssertionUtil;
29
30 /**
31 * {@link UIComponentContainer} のための基底クラスです。<br />
32 *
33 * @author y-komori
34 */
35 public abstract class AbstractUIContainer extends AbstractUIComponent implements
36 UIComponentContainer {
37 protected List<UIElement> children = new ArrayList<UIElement>();
38
39 /*
40 * @see org.seasar.uruma.component.UIElementContainer#addChild(org.seasar.uruma.component.UIElement)
41 */
42 public void addChild(final UIElement child) {
43 AssertionUtil.assertNotNull("child", child);
44 children.add(child);
45
46 if (child instanceof UIComponent) {
47 ((UIComponent) child).setParent(this);
48 }
49 }
50
51 /*
52 * @see org.seasar.uruma.component.UIElementContainer#getChildren()
53 */
54 public List<UIElement> getChildren() {
55 return Collections.unmodifiableList(children);
56 }
57
58 /*
59 * @see org.seasar.uruma.component.jface.AbstractUIComponent#doPreRender(org.seasar.uruma.context.WidgetHandle,
60 * org.seasar.uruma.context.WindowContext)
61 */
62 @Override
63 protected void doPreRender(final WidgetHandle parent,
64 final WindowContext context) {
65 for (UIElement child : children) {
66 if (child instanceof UIComponent) {
67 ((UIComponent) child).preRender(parent, context);
68 }
69 }
70 }
71
72 /*
73 * @see org.seasar.uruma.component.jface.AbstractUIComponent#doRender(org.seasar.uruma.context.WidgetHandle,
74 * org.seasar.uruma.context.PartContext)
75 */
76 @Override
77 protected void doRender(final WidgetHandle parent, final PartContext context) {
78 for (UIElement child : children) {
79 if (child instanceof UIComponent) {
80 ((UIComponent) child).render(parent, context);
81 }
82 }
83 }
84
85 }