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/*
* =============================================================================
*
* Copyright (c) 2011-2016, The THYMELEAF team (http://www.thymeleaf.org)
*
* Licensed 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.thymeleaf.spring4.processor;
import org.springframework.web.servlet.support.BindStatus;
import org.springframework.web.servlet.tags.form.SelectedValueComparatorWrapper;
import org.thymeleaf.context.ITemplateContext;
import org.thymeleaf.engine.AttributeName;
import org.thymeleaf.exceptions.TemplateProcessingException;
import org.thymeleaf.model.IProcessableElementTag;
import org.thymeleaf.processor.element.IElementTagStructureHandler;
import org.thymeleaf.spring4.requestdata.RequestDataValueProcessorUtils;
import org.thymeleaf.standard.util.StandardProcessorUtils;
import org.unbescape.html.HtmlEscape;
/**
*
* @author Daniel Fernández
*
* @since 3.0.0
*
*/
public final class SpringInputRadioFieldTagProcessor extends AbstractSpringFieldTagProcessor {
public static final String RADIO_INPUT_TYPE_ATTR_VALUE = "radio";
public SpringInputRadioFieldTagProcessor(final String dialectPrefix) {
super(dialectPrefix, INPUT_TAG_NAME, TYPE_ATTR_NAME, new String[] { RADIO_INPUT_TYPE_ATTR_VALUE }, true);
}
@Override
protected void doProcess(final ITemplateContext context,
final IProcessableElementTag tag,
final AttributeName attributeName, final String attributeValue,
final BindStatus bindStatus, final IElementTagStructureHandler structureHandler) {
String name = bindStatus.getExpression();
name = (name == null? "" : name);
final String id = computeId(context, tag, name, true);
final String value = tag.getAttributeValue(this.valueAttributeDefinition.getAttributeName());
if (value == null) {
throw new TemplateProcessingException(
"Attribute \"value\" is required in \"input(radio)\" tags");
}
final boolean checked =
SelectedValueComparatorWrapper.isSelected(bindStatus, HtmlEscape.unescapeHtml(value));
StandardProcessorUtils.setAttribute(structureHandler, this.idAttributeDefinition, ID_ATTR_NAME, id); // No need to escape: this comes from an existing 'id' or from a token
StandardProcessorUtils.setAttribute(structureHandler, this.nameAttributeDefinition, NAME_ATTR_NAME, name); // No need to escape: this is a java-valid token
StandardProcessorUtils.setAttribute(
structureHandler, this.valueAttributeDefinition, VALUE_ATTR_NAME, RequestDataValueProcessorUtils.processFormFieldValue(context, name, value, "radio"));
if (checked) {
StandardProcessorUtils.setAttribute(structureHandler, this.checkedAttributeDefinition, CHECKED_ATTR_NAME, CHECKED_ATTR_NAME);
} else {
structureHandler.removeAttribute(this.checkedAttributeDefinition.getAttributeName());
}
}
}