com.googlecode.jsfFlex.component.AbstractFlexUISelectedIndexBase.java Source code

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Here is the source code for com.googlecode.jsfFlex.component.AbstractFlexUISelectedIndexBase.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 com.googlecode.jsfFlex.component;

import javax.faces.component.FacesComponent;
import javax.faces.context.FacesContext;

import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFComponent;

import com.googlecode.jsfFlex.attributes.IFlexUISelectedIndexAttribute;

/**
 * This class will process the needed actions of setting and retrieving of "selectedIndex" attribute<br>
 * within the Flex components.<br>
 * 
 * @author Ji Hoon Kim
 */
@JSFComponent(clazz = "com.googlecode.jsfFlex.component.FlexUISelectedIndexBase", type = "com.googlecode.jsfFlex.FlexUISelectedIndexBase", family = "javax.faces.FlexUISelectedIndexBase", desc = "Base component for FlexInput components that contain selectedIndex attribute", template = true)
@FacesComponent("com.googlecode.jsfFlex.FlexUISelectedIndexBase")
public abstract class AbstractFlexUISelectedIndexBase extends AbstractFlexUIInputBase
        implements IFlexUISelectedIndexAttribute {

    private final static org.apache.commons.logging.Log _log = org.apache.commons.logging.LogFactory
            .getLog(FlexUISelectedIndexBase.class);

    private static final String SELECTED_INDEX_ID_APPENDED = "_selectedIndex";
    private static final String SELECTED_INDEX_ATTR = "selectedIndex";

    private org.json.JSONObject initValue;

    protected void populateComponentInitValues() {
        try {
            if (getSelectedIndex() != null) {
                getInitValue().put(VALUE, getSelectedIndex());
            }
        } catch (org.json.JSONException jsonException) {
            _log.info("Error while formatting to JSON content", jsonException);
        }
    }

    private synchronized org.json.JSONObject getInitValue() {
        if (initValue == null) {
            try {
                initValue = new org.json.JSONObject();
                initValue.put(ATTRIBUTE, SELECTED_INDEX_ATTR);

                _initValues.put(initValue);

            } catch (org.json.JSONException jsonException) {
                _log.info("Error while formatting to JSON content", jsonException);
            }
        }
        return initValue;
    }

    @Override
    public void decode(FacesContext context) {
        super.decode(context);

        java.util.Map<String, String> requestMap = context.getExternalContext().getRequestParameterMap();

        String selectedIndexId = getId() + SELECTED_INDEX_ID_APPENDED;
        String selectedIndexUpdateVal = requestMap.get(selectedIndexId);

        if (selectedIndexUpdateVal != null) {
            setSelectedIndex(Integer.valueOf(selectedIndexUpdateVal));
            setSubmittedValue(selectedIndexUpdateVal);
        }

    }

    @Override
    public void processUpdates(FacesContext context) {
        super.processUpdates(context);

        if (!isRendered() || !isValid()) {
            return;
        }

        javax.el.ValueExpression ve = getValueExpression(SELECTED_INDEX_ATTR);

        if (ve != null && !ve.isReadOnly(context.getELContext())) {
            ve.setValue(context.getELContext(), getSelectedIndex());
            setSelectedIndex(null);
        }

    }

}