htmlmenurendererbase.java

一个使用struts+hibernate+spring开发的完的网站源代码。

/*
 * Copyright 2004 The Apache Software Foundation.
 * 
 * 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.apache.myfaces.renderkit.html;

import org.apache.myfaces.renderkit.RendererUtils;

import javax.faces.component.UIComponent;
import javax.faces.component.UISelectMany;
import javax.faces.component.UISelectOne;
import javax.faces.component.html.HtmlSelectManyMenu;
import javax.faces.component.html.HtmlSelectOneMenu;
import javax.faces.context.FacesContext;
import javax.faces.convert.ConverterException;
import java.io.IOException;

/**
 * X-CHECKED: tlddoc of h:selectManyListbox
 *
 * @author Manfred Geiler (latest modification by $Author: matze $)
 * @author Thomas Spiegl
 * @version $Revision: 1.4 $ $Date: 2004/10/13 11:51:01 $
 * $Log: HtmlMenuRendererBase.java,v $
 * Revision 1.4  2004/10/13 11:51:01  matze
 * renamed packages to org.apache
 *
 * Revision 1.3  2004/07/01 22:00:56  mwessendorf
 * ASF switch
 *
 * Revision 1.2  2004/06/04 00:26:16  o_rossmueller
 * modified renderes to comply with JSF 1.1
 *
 * Revision 1.1  2004/05/18 14:31:39  manolito
 * user role support completely moved to components source tree
 *
 */
public class HtmlMenuRendererBase
        extends HtmlRenderer
{
    //private static final Log log = LogFactory.getLog(HtmlMenuRenderer.class);

    public void encodeEnd(FacesContext facesContext, UIComponent component)
            throws IOException
    {
        RendererUtils.checkParamValidity(facesContext, component, null);

        if (component instanceof UISelectMany)
        {
            HtmlRendererUtils.renderMenu(facesContext,
                                         (UISelectMany)component,
                                         isDisabled(facesContext, component));
        }
        else if (component instanceof UISelectOne)
        {
            HtmlRendererUtils.renderMenu(facesContext,
                                         (UISelectOne)component,
                                         isDisabled(facesContext, component));
        }
        else
        {
            throw new IllegalArgumentException("Unsupported component class " + component.getClass().getName());
        }
    }

    protected boolean isDisabled(FacesContext facesContext, UIComponent uiComponent)
    {
        //TODO: overwrite in extended HtmlMenuRenderer and check for enabledOnUserRole
        if (uiComponent instanceof HtmlSelectManyMenu)
        {
            return ((HtmlSelectManyMenu)uiComponent).isDisabled();
        }
        else if (uiComponent instanceof HtmlSelectOneMenu)
        {
            return ((HtmlSelectOneMenu)uiComponent).isDisabled();
        }
        else
        {
            return RendererUtils.getBooleanAttribute(uiComponent, HTML.DISABLED_ATTR, false);
        }
    }


    private String getStyleClass(UISelectMany component)
    {
        if (component instanceof HtmlSelectManyMenu)
        {
            return ((HtmlSelectManyMenu)component).getStyleClass();
        }
        else
        {
            return (String)component.getAttributes().get(HTML.STYLE_CLASS_ATTR);
        }
    }

    private String getStyleClass(UISelectOne component)
    {
        if (component instanceof HtmlSelectOneMenu)
        {
            return ((HtmlSelectOneMenu)component).getStyleClass();
        }
        else
        {
            return (String)component.getAttributes().get(HTML.STYLE_CLASS_ATTR);
        }
    }


    public void decode(FacesContext facesContext, UIComponent uiComponent)
    {
        RendererUtils.checkParamValidity(facesContext, uiComponent, null);

        if (uiComponent instanceof UISelectMany)
        {
            HtmlRendererUtils.decodeUISelectMany(facesContext, uiComponent);
        }
        else if (uiComponent instanceof UISelectOne)
        {
            HtmlRendererUtils.decodeUISelectOne(facesContext, uiComponent);
        }
        else
        {
            throw new IllegalArgumentException("Unsupported component class " + uiComponent.getClass().getName());
        }
    }

    public Object getConvertedValue(FacesContext facesContext, UIComponent uiComponent, Object submittedValue) throws ConverterException
    {
        RendererUtils.checkParamValidity(facesContext, uiComponent, null);

        if (uiComponent instanceof UISelectMany)
        {
            return RendererUtils.getConvertedUISelectManyValue(facesContext,
                                                               (UISelectMany)uiComponent,
                                                               submittedValue);
        }
        else if (uiComponent instanceof UISelectOne)
        {
            return RendererUtils.getConvertedUIOutputValue(facesContext,
                                                           (UISelectOne)uiComponent,
                                                           submittedValue);
        }
        else
        {
            throw new IllegalArgumentException("Unsupported component class " + uiComponent.getClass().getName());
        }
    }

}