htmltabbedpanerenderer.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.custom.tabbedpane;

import org.apache.myfaces.renderkit.RendererUtils;
import org.apache.myfaces.renderkit.html.HTML;
import org.apache.myfaces.renderkit.html.HtmlRenderer;
import org.apache.myfaces.renderkit.html.HtmlRendererUtils;
import org.apache.myfaces.component.UserRoleUtils;

import javax.faces.application.ViewHandler;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;
import javax.faces.component.UIForm;
import javax.faces.component.UIViewRoot;
import javax.faces.component.UINamingContainer;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.IOException;
import java.util.List;
import java.util.Map;

/**
 * @author Manfred Geiler (latest modification by $Author: oros $)
 * @version $Revision: 1.10 $ $Date: 2005/02/16 00:50:37 $
 * $Log: HtmlTabbedPaneRenderer.java,v $
 * Revision 1.10  2005/02/16 00:50:37  oros
 * SF issue #1043331: replaced all   by the corresponding numeric entity   so safari users will be happy, too, with MyFaces output
 *
 * Revision 1.9  2005/02/11 16:03:00  mmarinschek
 * solve bug in tabbed panel when datatable was displayed not on tab, but at the bottom of the datatable...
 *
 * Revision 1.8  2005/01/24 12:20:11  mmarinschek
 * Changed the TabbedPane component to only decode components which are on the visible tags - other components are not processed in the decode phase. Changed the HtmlRendererUtils back to submit empty strings for components which should be posted back but have null values.
 *
 * Revision 1.7  2004/11/26 14:29:12  oros
 * bug fix #1006636: VisibleOnUserRole attribute for x:panelTab tag
 *
 * Revision 1.6  2004/10/13 11:50:58  matze
 * renamed packages to org.apache
 *
 * Revision 1.5  2004/08/09 10:52:25  manolito
 * RFE #975649 - Enhance HtmlTabbedPaneRenderer (rendered attribute for TabbedPane component)
 *
 * Revision 1.4  2004/07/10 17:11:02  o_rossmueller
 * added attributes activeTabStyleClass, inactiveTabStyleClass, activeSubStyleClass, inactiveSubStyleClass, tagContentStyleClass to overwrite style attributes using css
 *
 * Revision 1.3  2004/07/01 21:53:05  mwessendorf
 * ASF switch
 *
 * Revision 1.2  2004/05/18 12:02:13  manolito
 * getActionURL and getResourceURL must not call encodeActionURL or encodeResourceURL
 *
 */
public class HtmlTabbedPaneRenderer
        extends HtmlRenderer
{
    //private static final Log log = LogFactory.getLog(HtmlTabbedPaneRenderer.class);

    private static final String TABLE_STYLE =
        "border-style: none; " +
        "padding: 0px; " +
        "border-spacing: 0px; " +
        "empty-cells: show; ";

    private static final String ACTIVE_HEADER_CELL_STYLE =
        "border-top: 2px outset #CCCCCC; " +
        "border-right: 2px outset #CCCCCC; " +
        "border-bottom: 0px none; " +
        "border-left: 2px outset #CCCCCC; " +
        "text-align: center; ";

    private static final String INACTIVE_HEADER_CELL_STYLE =
        "border-top: 1px outset #CCCCCC; " +
        "border-right: 1px outset #CCCCCC; " +
        "border-bottom: 0px none; " +
        "border-left: 1px outset #CCCCCC; " +
        "text-align: center; " +
        "background-color: #CCCCCC; ";

    private static final String EMPTY_HEADER_CELL_STYLE =
        "border-top: 0px none; " +
        "border-right: 0px none; " +
        "border-bottom: 0px none; " +
        "border-left: 0px none; ";

    private static final String SUB_HEADER_CELL_STYLE =
        "height: 2px; " +
        "line-height: 0px; font-size: 0px; " +
        "border-bottom: 0px none; ";

    private static final String TAB_CELL_STYLE =
        "border-top: 0px none; " +
        "border-right: 2px outset #CCCCCC; " +
        "border-bottom: 2px outset #CCCCCC; " +
        "border-left: 2px outset #CCCCCC; " +
        "padding: 10px; ";

    private static final String NO_BORDER_STYLE =
        "0px none; ";

    private static final String BORDER_STYLE =
        "2px outset #CCCCCC; ";

    private static final String BUTTON_STYLE_ACTIVE
        = "border-style:none; width:100%; cursor:pointer;";
    private static final String BUTTON_STYLE_INACTIVE
        = "border-style:none; width:100%; cursor:pointer; background-color:#CCCCCC;";

    private static final String BUTTON_STYLE_DISABLED
        = "border-style:none; width:100%; cursor:normal;";

    private static final String DEFAULT_BG_COLOR = "#FFFFFF";

    private static final String AUTO_FORM_SUFFIX = ".autoform";


    public void encodeBegin(FacesContext facesContext, UIComponent uiComponent) throws IOException
    {
    }

    public boolean getRendersChildren()
    {
        return true;
    }
    
    public void encodeChildren(FacesContext facescontext, UIComponent uicomponent) throws IOException
    {
    }

    public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException
    {
        RendererUtils.checkParamValidity(facesContext, uiComponent, HtmlPanelTabbedPane.class);

        ResponseWriter writer = facesContext.getResponseWriter();

        HtmlRendererUtils.writePrettyLineSeparator(facesContext);

        HtmlPanelTabbedPane tabbedPane = (HtmlPanelTabbedPane)uiComponent;
        int selectedIndex = tabbedPane.getSelectedIndex();

        if (tabbedPane.getBgcolor() == null)
        {
            tabbedPane.setBgcolor(DEFAULT_BG_COLOR);
        }

        UIForm parentForm = RendererUtils.findParentForm(tabbedPane);
        if (parentForm == null)
        {
            writeFormStart(writer, facesContext, tabbedPane);
        }

        writeTableStart(writer, facesContext, tabbedPane);
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        writer.startElement(HTML.TR_ELEM, uiComponent);

        //Tab headers
        int tabIdx = 0;
        int visibleTabCount = 0;
        int visibleTabSelectedIdx = -1;
        List children = tabbedPane.getChildren();
        for (int i = 0, len = children.size(); i < len; i++)
        {
            UIComponent child = getUIComponent((UIComponent)children.get(i));
            if (child instanceof HtmlPanelTab)
            {
                if (child.isRendered())
                {
                    writeHeaderCell(writer, facesContext, tabbedPane,
                                    (HtmlPanelTab)child, tabIdx, tabIdx == selectedIndex, isDisabled(facesContext, child));
                    if (tabIdx == selectedIndex)
                    {
                        visibleTabSelectedIdx = visibleTabCount;
                    }
                    visibleTabCount++;
                }
                tabIdx++;
            }
        }

        //Empty tab cell on the right for better look
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        HtmlRendererUtils.writePrettyIndent(facesContext);
        writer.startElement(HTML.TD_ELEM, uiComponent);
        writer.writeAttribute(HTML.STYLE_ATTR, EMPTY_HEADER_CELL_STYLE, null);
        writer.write("&#160;");
        writer.endElement(HTML.TD_ELEM);
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        writer.endElement(HTML.TR_ELEM);

        //Sub header cells
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        writer.startElement(HTML.TR_ELEM, uiComponent);
        writeSubHeaderCells(writer,  facesContext, tabbedPane, visibleTabCount, visibleTabSelectedIdx, false);
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        writer.endElement(HTML.TR_ELEM);

        //Tab
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        writer.startElement(HTML.TR_ELEM, uiComponent);
        writeTabCell(writer,  facesContext, tabbedPane, visibleTabCount, selectedIndex);
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        writer.endElement(HTML.TR_ELEM);

        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        writer.endElement(HTML.TABLE_ELEM);

        if (parentForm == null)
        {
            writeFormEnd(writer, facesContext);
        }
    }


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

        HtmlPanelTabbedPane tabbedPane = (HtmlPanelTabbedPane)uiComponent;

        Map paramMap = facesContext.getExternalContext().getRequestParameterMap();

        int tabIdx = 0;
        List children = tabbedPane.getChildren();
        for (int i = 0, len = children.size(); i < len; i++)
        {
            UIComponent child = getUIComponent((UIComponent)children.get(i));
            if (child instanceof HtmlPanelTab)