001    /**
002     * Copyright 2005-2012 The Kuali Foundation
003     *
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.opensource.org/licenses/ecl2.php
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.kuali.rice.krad.uif.modifier;
017    
018    import org.apache.commons.lang.StringUtils;
019    import org.kuali.rice.krad.uif.container.Group;
020    import org.kuali.rice.krad.uif.view.View;
021    import org.kuali.rice.krad.uif.component.Component;
022    import org.kuali.rice.krad.uif.field.Field;
023    
024    import java.util.ArrayList;
025    import java.util.HashSet;
026    import java.util.List;
027    import java.util.Set;
028    
029    /**
030     * Pulls <code>Label</code> instances out of a contained field so they will
031     * be placed separately in the <code>LayoutManager</code>
032     * 
033     * @author Kuali Rice Team (rice.collab@kuali.org)
034     */
035    public class LabelSeparateModifier extends ComponentModifierBase {
036            private static final long serialVersionUID = -4304947796868636298L;
037    
038            public LabelSeparateModifier() {
039                    super();
040            }
041    
042            /**
043             * Iterates through the <code>Group</code> items and if the label field is
044             * not null and should be rendered, adds it to the new field list
045             * immediately before the <code>Field</code> item the label applies to.
046             * Finally the new list of components is set on the group
047             * 
048             * @see org.kuali.rice.krad.uif.modifier.ComponentModifier#performModification(org.kuali.rice.krad.uif.view.View,
049             *      java.lang.Object, org.kuali.rice.krad.uif.component.Component)
050             */
051            @Override
052            public void performModification(View view, Object model, Component component) {
053                    if ((component != null) && !(component instanceof Group)) {
054                            throw new IllegalArgumentException("Compare field initializer only support Group components, found type: "
055                                            + component.getClass());
056                    }
057    
058                    if (component == null) {
059                            return;
060                    }
061    
062                    // list that will be built
063                    List<Component> groupFields = new ArrayList<Component>();
064    
065                    Group group = (Group) component;
066                    for (Component item : group.getItems()) {
067                            if (item instanceof Field) {
068                                    Field field = (Field) item;
069    
070                                    // pull out label field
071                                    if (field.getFieldLabel() != null && field.getFieldLabel().isRender()) {
072                                        field.getFieldLabel().addStyleClass("displayWith-" + field.getId());
073                        if (!field.isRender() && StringUtils.isBlank(field.getProgressiveRender())) {
074                           field.getFieldLabel().setRender(false);
075                        }
076                        else if(!field.isRender() && StringUtils.isNotBlank(field.getProgressiveRender())){
077                           field.getFieldLabel().setRender(true);
078                           String prefixStyle = "";
079                           if(StringUtils.isNotBlank(field.getFieldLabel().getStyle())){
080                               prefixStyle = field.getFieldLabel().getStyle();
081                           }
082                           field.getFieldLabel().setStyle(prefixStyle + ";" + "display: none;");
083                        }
084    
085                                            groupFields.add(field.getFieldLabel());
086    
087                                            // set boolean to indicate label field should not be
088                                            // rendered with the attribute
089                                            field.setLabelRendered(true);
090                                    }
091                            }
092    
093                            groupFields.add(item);
094                    }
095    
096                    // update group
097                    group.setItems(groupFields);
098            }
099    
100            /**
101             * @see org.kuali.rice.krad.uif.modifier.ComponentModifier#getSupportedComponents()
102             */
103            @Override
104            public Set<Class<? extends Component>> getSupportedComponents() {
105                    Set<Class<? extends Component>> components = new HashSet<Class<? extends Component>>();
106                    components.add(Group.class);
107    
108                    return components;
109            }
110    
111    }