/*

  * Copyright 2007 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 1.0 (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.opensource.org/licenses/ecl1.php

  *

  * 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.kuali.rice.krad.uif.field;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.krad.uif.UifConstants.Position;

 import org.kuali.rice.krad.uif.container.View;

 import org.kuali.rice.krad.uif.core.Component;

 import org.kuali.rice.krad.uif.core.ComponentBase;

 import org.kuali.rice.krad.uif.util.ComponentFactory;

 import java.util.List;

 /**

  * Base class for <code>Field</code> implementations

  * 

  * <p>

  * Sets the component type name so that all field templates have a fixed

  * contract

  * </p>

  * 

  * <p>

  * Holds a nested <code>LabelField</code> with configuration for rendering the

  * label and configuration on label placement.

  * </p>

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class FieldBase extends ComponentBase implements Field {

         private static final long serialVersionUID = -5888414844802862760L;

         private String shortLabel;

         private LabelField labelField;

         private String labelPlacement;

         private boolean labelFieldRendered;

         public FieldBase() {

                 labelFieldRendered = false;

                 labelPlacement = Position.LEFT;

         }

         /**

          * The following initialization is performed:

          * 

          * <ul>

          * </ul>

          * 

          * @see org.kuali.rice.krad.uif.core.ComponentBase#performInitialization(org.kuali.rice.krad.uif.container.View)

          */

         @Override

         public void performInitialization(View view) {

                 super.performInitialization(view);

         }

         /**

          * The following finalization is performed:

          * 

          * <ul>

          * <li>Set the labelForComponentId to this component id</li>

          * <li>Set the label text on the label field from the field's label property

          * </li>

          * <li>Set the render property on the label's required message field if this

          * field is marked as required</li>

          * <li>If label placement is right, set render colon to false</li>

          * </ul>

          * 

          * @see org.kuali.rice.krad.uif.core.ComponentBase#performFinalize(org.kuali.rice.krad.uif.container.View,

          *      java.lang.Object, org.kuali.rice.krad.uif.core.Component)

          */

         @Override

         public void performFinalize(View view, Object model, Component parent) {

                 super.performFinalize(view, model, parent);

                 if (labelField != null) {

                         labelField.setLabelForComponentId(this.getId());

                         if ((getRequired() != null) && getRequired().booleanValue()) {

                                 labelField.getRequiredMessageField().setRender(true);

                         }

                         else {

                                 setRequired(new Boolean(false));

                                 labelField.getRequiredMessageField().setRender(true);

                                 String prefixStyle = "";

                                 if(StringUtils.isNotBlank(labelField.getRequiredMessageField().getStyle())){

                     prefixStyle = labelField.getRequiredMessageField().getStyle();

                 }

                                 labelField.getRequiredMessageField().setStyle(prefixStyle + ";" + "display: none;");

                         }

                         if (StringUtils.equals(labelPlacement, Position.RIGHT)) {

                                 labelField.setRenderColon(false);

                         }

                 }

         }

         /**

          * @see org.kuali.rice.krad.uif.core.Component#getComponentTypeName()

          */

         @Override

         public final String getComponentTypeName() {

                 return "field";

         }

         /**

          * @see org.kuali.rice.krad.uif.core.ComponentBase#getNestedComponents()

          */

         @Override

         public List<Component> getNestedComponents() {

                 List<Component> components = super.getNestedComponents();

                 components.add(labelField);

                 return components;

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#getLabel()

          */

         public String getLabel() {

                 if (labelField != null) {

                         return labelField.getLabelText();

                 }

                 return null;

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#setLabel(java.lang.String)

          */

         public void setLabel(String label) {

         if (StringUtils.isNotBlank(label) && labelField == null) {

             labelField = ComponentFactory.getLabelField();

         }

                 if (labelField != null) {

                         labelField.setLabelText(label);

                 }

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#getShortLabel()

          */

         public String getShortLabel() {

                 return this.shortLabel;

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#setShortLabel(java.lang.String)

          */

         public void setShortLabel(String shortLabel) {

                 this.shortLabel = shortLabel;

         }

         /**

          * Sets whether the label should be displayed

          * 

          * <p>

          * Convenience method for configuration that sets the render indicator on

          * the fields <code>LabelField</code> instance

          * </p>

          * 

          * @param showLabel

          *            boolean true if label should be displayed, false if the label

          *            should not be displayed

          */

         public void setShowLabel(boolean showLabel) {

                 if (labelField != null) {

                         labelField.setRender(showLabel);

                 }

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#getLabelField()

          */

         public LabelField getLabelField() {

                 return this.labelField;

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#setLabelField(org.kuali.rice.krad.uif.field.LabelField)

          */

         public void setLabelField(LabelField labelField) {

                 this.labelField = labelField;

         }

         public String getLabelPlacement() {

                 return this.labelPlacement;

         }

         public void setLabelPlacement(String labelPlacement) {

                 this.labelPlacement = labelPlacement;

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#isLabelFieldRendered()

          */

         public boolean isLabelFieldRendered() {

                 return this.labelFieldRendered;

         }

         /**

          * @see org.kuali.rice.krad.uif.field.Field#setLabelFieldRendered(boolean)

          */

         public void setLabelFieldRendered(boolean labelFieldRendered) {

                 this.labelFieldRendered = labelFieldRendered;

         }

 }