/*
 * Copyright 2004-2011 the Seasar Foundation and the Others.
 *
 * 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.seasar.teeda.extension.html.factory;

import java.util.Map;

import org.seasar.teeda.core.JsfConstants;
import org.seasar.teeda.extension.ExtensionConstants;
import org.seasar.teeda.extension.html.ActionDesc;
import org.seasar.teeda.extension.html.ElementNode;
import org.seasar.teeda.extension.html.HtmlNode;
import org.seasar.teeda.extension.html.PageDesc;

/**
 * te:inputRadio
 * 
 * @author manhole
 */
public class InputRadioFactory extends AbstractElementProcessorFactory {

    private static final String TAG_NAME = "inputRadio";

    protected String getTagName() {
        return TAG_NAME;
    }

    protected String getUri() {
        return ExtensionConstants.TEEDA_EXTENSION_URI;
    }

    public boolean isMatch(final ElementNode elementNode,
            final PageDesc pageDesc, final ActionDesc actionDesc) {
        if (pageDesc == null) {
            return false;
        }
        final String tagName = elementNode.getTagName();
        if (!JsfConstants.SPAN_ELEM.equalsIgnoreCase(tagName) &&
                !JsfConstants.DIV_ELEM.equalsIgnoreCase(tagName)) {
            return false;
        }
        final String id = elementNode.getId();
        if (id == null) {
            return false;
        }
        if (!pageDesc.hasProperty(id)) {
            return false;
        }
        if (!hasRadioNode(id, elementNode)) {
            return false;
        }
        return true;
    }

    protected boolean hasRadioNode(final String id,
            final ElementNode elementNode) {
        for (int i = 0; i < elementNode.getChildSize(); i++) {
            final HtmlNode child = elementNode.getChild(i);
            if (child instanceof ElementNode) {
                final ElementNode node = (ElementNode) child;
                final String childTagName = node.getTagName();
                if (JsfConstants.INPUT_ELEM.equalsIgnoreCase(childTagName) &&
                        JsfConstants.RADIO_VALUE.equalsIgnoreCase(node
                                .getProperty(JsfConstants.TYPE_ATTR))) {
                    final String name = node
                            .getProperty(JsfConstants.NAME_ATTR);
                    if (id.equals(name)) {
                        return true;
                    }
                }
                if (hasRadioNode(id, node)) {
                    return true;
                }
            }
        }
        return false;
    }

    protected void customizeProperties(Map properties, ElementNode elementNode,
            PageDesc pageDesc, ActionDesc actionDesc) {
        super
                .customizeProperties(properties, elementNode, pageDesc,
                        actionDesc);
        if (pageDesc != null) {
            properties.put(JsfConstants.VALUE_ATTR, getBindingExpression(
                    pageDesc.getPageName(), elementNode.getId()));
        }
    }

}
