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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 org.apache.myfaces.custom.toggle;

import javax.faces.component.html.HtmlOutputLink;
import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;

/**
 * Should be nested within an HtmlToggleGroup component. Controls nested within
 * this component will be displayed in 'view' mode, controls outside this
 * component (within the parent HtmlToggleGroup) will be displayed in 'edit'
 * mode.
 * 
 * @author Sharath Reddy
 */
public class ToggleLink extends HtmlOutputLink
{
    public static final String COMPONENT_TYPE = "org.apache.myfaces.ToggleLink";
    public static final String DEFAULT_RENDERER_TYPE = "org.apache.myfaces.ToggleLink";
    private static final boolean DEFAULT_DISABLED = false;

    private String _for = null;
    private Boolean _disabled = null;

    public void setFor(String value)
    {
        _for = value;
    }

    public String getFor()
    {
        return _for;
    }
    
    public void setDisabled(boolean disabled)
    {
        _disabled = Boolean.valueOf(disabled);
    }

    public boolean isDisabled()
    {
        if (_disabled != null) return _disabled.booleanValue();
        ValueBinding vb = getValueBinding("disabled");
        Boolean v = vb != null ? (Boolean)vb.getValue(getFacesContext()) : null;
        return v != null ? v.booleanValue() : DEFAULT_DISABLED;
    }

    public ToggleLink()
    {
        super();
        setRendererType(ToggleLink.DEFAULT_RENDERER_TYPE);
        setValue( "#" );
    }

    public Object saveState(FacesContext context)
    {
        Object[] values = new Object[3];
        values[0] = super.saveState(context);
        values[1] = _for;
        values[2] = _disabled;
        return values;
    }

    public void restoreState(FacesContext context, Object state)
    {
        Object values[] = (Object[]) state;
        super.restoreState(context, values[0]);
        _for = (String) values[1];
        _disabled =  (Boolean)values[2];
    }

}