001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
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030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
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035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
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040: */
041: package org.netbeans.modules.visualweb.web.ui.dt.component;
042:
043: import com.sun.rave.designtime.DesignBean;
044: import com.sun.rave.designtime.DesignProperty;
045: import com.sun.rave.designtime.Result;
046: import com.sun.rave.web.ui.component.Label;
047: import org.netbeans.modules.visualweb.web.ui.dt.AbstractDesignInfo;
048:
049: import javax.faces.component.EditableValueHolder;
050: import javax.faces.component.UIParameter;
051:
052: /**
053: * Design time behavior for a <code>Label</code> component. The
054: * following behavior is provided:</p>
055: * <ul>
056: * <li>When component is created, default the <code>text</code> property to the
057: * component's display name, and the <code>labelLevel</code> to "3".</li>
058: * <li>Allow the component to be linked to other components that implement
059: * <code>EditableValueHolder</code>. When linked, the label's
060: * <code>for</code> property will be set to the <code>id</code> of the
061: * target component. If the target component has a lable property already,
062: * a display action is returned that asks the user if the label should
063: * be transfered. If the user chooses to transfer the label, the label
064: * and labelLevel property values are moved.</li>
065: * <li>If the component's <code>for</code> property is modified,
066: * <code>requiredIndicator</code> property is reset to reflect the value of
067: * the linked input component's <code>requried</code> property.</li>
068: * </ul>
069: */
070:
071: public class LabelDesignInfo extends AbstractDesignInfo {
072:
073: /**
074: * Construct a new <code>LabelDesignInfo</code> instance.
075: */
076: public LabelDesignInfo() {
077: super (Label.class);
078: }
079:
080: /**
081: * @param <code>DesignBean</code> for the newly created instance
082: */
083: public Result beanCreatedSetup(DesignBean bean) {
084: DesignProperty textProperty = bean.getProperty("text"); //NOI18N
085: textProperty.setValue(bean.getBeanInfo().getBeanDescriptor()
086: .getDisplayName());
087: return Result.SUCCESS;
088: }
089:
090: /**
091: * Returns true if source bean implements EditaleValueHolder.
092: *
093: * @param targetBean Target <code>Label</code> bean
094: * @param sourceBean Source bean (or <code>null</code>)
095: * @param sourceClass Class of source object being dropped
096: */
097: public boolean acceptLink(DesignBean targetBean,
098: DesignBean sourceBean, Class sourceClass) {
099: if (EditableValueHolder.class.isAssignableFrom(sourceClass))
100: return true;
101: return super .acceptLink(targetBean, sourceBean, sourceClass);
102: }
103:
104: /**
105: * Returns true if child is an instance of UIParameter.
106: */
107: public boolean acceptChild(DesignBean parentBean,
108: DesignBean childBean, Class childClass) {
109: if (UIParameter.class.isAssignableFrom(childClass))
110: return true;
111: return super .acceptChild(parentBean, childBean, childClass);
112: }
113:
114: /**
115: * If a component that implements <code>EditableValueHolder</code> is
116: * linked to us, update our <code>for</code> property such that it contains
117: * the component's id. Links from all other types of components are treated
118: * as no-ops.
119: *
120: * @param targetBean Target <code>Label</code> bean
121: * @param sourceBean Source bean (or <code>null</code>)
122: */
123: public Result linkBeans(DesignBean targetBean, DesignBean sourceBean) {
124:
125: if (!EditableValueHolder.class.isAssignableFrom(sourceBean
126: .getInstance().getClass()))
127: return super .linkBeans(targetBean, sourceBean);
128:
129: DesignProperty forProperty = targetBean.getProperty("for"); //NOI18N
130: if (forProperty == null)
131: return Result.FAILURE;
132: forProperty.setValue(sourceBean.getInstanceName());
133: return Result.SUCCESS;
134: }
135:
136: }
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