htmlmenurenderer.java

Sequoia ERP是一个真正的企业级开源ERP解决方案。它提供的模块包括：电子商务应用(e-commerce), POS系统(point of sales),知识管理,存货与仓库管理

/*
 * $Id: HtmlMenuRenderer.java 5864 2005-09-30 14:27:12Z jonesde $
 *
 * Copyright (c) 2003 The Open For Business Project - www.ofbiz.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
 * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.ofbiz.widget.html;

import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.ofbiz.base.util.StringUtil;
import org.ofbiz.base.util.UtilValidate;
import org.ofbiz.entity.GenericDelegator;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.webapp.control.RequestHandler;
import org.ofbiz.webapp.taglib.ContentUrlTag;
import org.ofbiz.widget.menu.MenuStringRenderer;
import org.ofbiz.widget.menu.ModelMenu;
import org.ofbiz.widget.menu.ModelMenuItem;
import org.ofbiz.widget.menu.ModelMenuItem.Image;
import org.ofbiz.widget.menu.ModelMenuItem.Link;

/**
 * Widget Library - HTML Menu Renderer implementation
 *
 * @author     <a href="mailto:[e-mail]">David E. Jones</a>
 * @author     <a href="mailto:[e-mail]">Al Byers</a>
 * @version    $Rev: 5864 $
 * @since      2.2
 */
public class HtmlMenuRenderer implements MenuStringRenderer {

    HttpServletRequest request;
    HttpServletResponse response;
    protected String userLoginIdAtPermGrant;
    protected boolean userLoginIdHasChanged = true;
    protected String permissionErrorMessage = "";

    public static final String module = HtmlMenuRenderer.class.getName();

    protected HtmlMenuRenderer() {}

    public HtmlMenuRenderer(HttpServletRequest request, HttpServletResponse response) {
        this.request = request;
        this.response = response;
    }

    public void appendWhitespace(StringBuffer buffer) {
        // appending line ends for now, but this could be replaced with a simple space or something
        buffer.append("\r\n");
        //buffer.append(' ');
    }

    public void appendOfbizUrl(StringBuffer buffer, String location) {
        ServletContext ctx = (ServletContext) request.getAttribute("servletContext");
        if (ctx == null) {
            //if (Debug.infoOn()) Debug.logInfo("in appendOfbizUrl, ctx is null(0): buffer=" + buffer.toString() + " location:" + location, "");
            HttpSession session = request.getSession();
            if (session != null) {
                ctx = session.getServletContext();
            } else {
                //if (Debug.infoOn()) Debug.logInfo("in appendOfbizUrl, session is null(1)", "");
            }
            if (ctx == null) {
                throw new RuntimeException("ctx is null. buffer=" + buffer.toString() + " location:" + location);
            }
                //if (Debug.infoOn()) Debug.logInfo("in appendOfbizUrl, ctx is NOT null(2)", "");
        }
        GenericDelegator delegator = (GenericDelegator)request.getAttribute("delegator");
        if (delegator == null) {
                //if (Debug.infoOn()) Debug.logInfo("in appendOfbizUrl, delegator is null(5)", "");
        }
        RequestHandler rh = (RequestHandler) ctx.getAttribute("_REQUEST_HANDLER_");
        // make and append the link
        String s = rh.makeLink(this.request, this.response, location);
            if (s.indexOf("null") >= 0) {
                //if (Debug.infoOn()) Debug.logInfo("in appendOfbizUrl(3), url: " + s, "");
            }
        buffer.append(s);
    }

    public void appendContentUrl(StringBuffer buffer, String location) {
        ServletContext ctx = (ServletContext) this.request.getAttribute("servletContext");
        if (ctx == null) {
            //if (Debug.infoOn()) Debug.logInfo("in appendContentUrl, ctx is null(0): buffer=" + buffer.toString() + " location:" + location, "");
            HttpSession session = request.getSession();
            if (session != null) {
                ctx = session.getServletContext();
            } else {
                //if (Debug.infoOn()) Debug.logInfo("in appendContentUrl, session is null(1)", "");
            }
            if (ctx == null) {
                throw new RuntimeException("ctx is null. buffer=" + buffer.toString() + " location:" + location);
            }
                //if (Debug.infoOn()) Debug.logInfo("in appendContentUrl, ctx is NOT null(2)", "");
            this.request.setAttribute("servletContext", ctx);
        }
        GenericDelegator delegator = (GenericDelegator)request.getAttribute("delegator");
        if (delegator == null) {
                //if (Debug.infoOn()) Debug.logInfo("in appendContentUrl, delegator is null(6)", "");
        }
        ContentUrlTag.appendContentPrefix(this.request, buffer);
        buffer.append(location);
    }

    public void appendTooltip(StringBuffer buffer, Map context, ModelMenuItem modelMenuItem) {
        // render the tooltip, in other methods too
        String tooltip = modelMenuItem.getTooltip(context);
        if (UtilValidate.isNotEmpty(tooltip)) {
            buffer.append("<span");
            String tooltipStyle = modelMenuItem.getTooltipStyle();
            if (UtilValidate.isNotEmpty(tooltipStyle)) {
                buffer.append(" class=\"");
                buffer.append(tooltipStyle);
                buffer.append("\"");
            }
            buffer.append("> -[");
            buffer.append(tooltip);
            buffer.append("]- </span>");
        }
    }

    public void renderFormatSimpleWrapperRows(StringBuffer buffer, Map context, Object menuObj) {

        List menuItemList = ((ModelMenu)menuObj).getMenuItemList();
        Iterator menuItemIter = menuItemList.iterator();
        ModelMenuItem currentMenuItem = null;

        while (menuItemIter.hasNext()) {
            currentMenuItem = (ModelMenuItem)menuItemIter.next();
            renderMenuItem(buffer, context, currentMenuItem);
        }
        return;
    }

    public void renderMenuItem(StringBuffer buffer, Map context, ModelMenuItem menuItem) {
        
        //Debug.logInfo("in renderMenuItem, menuItem:" + menuItem.getName() + " context:" + context ,"");
        boolean hideThisItem = isHideIfSelected(menuItem);
        //if (Debug.infoOn()) Debug.logInfo("in HtmlMenuRendererImage, hideThisItem:" + hideThisItem,"");
        if (hideThisItem)
            return;


        String style = menuItem.getAlignStyle();
        if (UtilValidate.isNotEmpty(style)) {
            String orientation = menuItem.getModelMenu().getOrientation();
            if (orientation.equalsIgnoreCase("vertical")) style += "-vert";
            String align = menuItem.getAlign();
            if (align.equalsIgnoreCase("right")) style += "-right";
            
            buffer.append("<div class=\"" + style + "\">");
        }
        
        
        Link link = menuItem.getLink();
        //if (Debug.infoOn()) Debug.logInfo("in HtmlMenuRendererImage, link(0):" + link,"");
        if (link != null) {
            renderLink(buffer, context, link);
        } 

        if (UtilValidate.isNotEmpty(style)) {
            // only render the close tag if we rendered the open
            buffer.append("</div>");
        }
        
        this.appendWhitespace(buffer);
        return;
    }

    public boolean isDisableIfEmpty(ModelMenuItem menuItem, Map context) {

        boolean disabled = false;
        String disableIfEmpty = menuItem.getDisableIfEmpty();
        if (UtilValidate.isNotEmpty(disableIfEmpty)) {
            List keys = StringUtil.split(disableIfEmpty, "|");
            Iterator iter = keys.iterator();
            while (iter.hasNext()) {
                Object obj = context.get(disableIfEmpty);
                if (obj == null) {
                    disabled = true;
                    break;
                }
            }
        }
        return disabled;
    }


    public String buildDivStr(ModelMenuItem menuItem, Map context) {
        String divStr = "";
        divStr =  menuItem.getTitle(context);
        return divStr;
    }

    public void renderMenuOpen(StringBuffer buffer, Map context, ModelMenu modelMenu) {

        if (!userLoginIdHasChanged) {
            userLoginIdHasChanged = userLoginIdHasChanged();
        }

            //Debug.logInfo("in HtmlMenuRenderer, userLoginIdHasChanged:" + userLoginIdHasChanged,"");
        String menuWidth = modelMenu.getMenuWidth();
        String menuContainerStyle = modelMenu.getMenuContainerStyle(context);
        String widthStr = "";
        if (UtilValidate.isNotEmpty(menuWidth)) {
            widthStr = " style=\"width:" + menuWidth + ";\"";
        }
        buffer.append("<div class=\"" + menuContainerStyle + "\"" + widthStr + ">");
        
        this.appendWhitespace(buffer);
    }

    /* (non-Javadoc)
     * @see org.ofbiz.widget.menu.MenuStringRenderer#renderMenuClose(java.lang.StringBuffer, java.util.Map, org.ofbiz.widget.menu.ModelMenu)
     */
    public void renderMenuClose(StringBuffer buffer, Map context, ModelMenu modelMenu) {
    	
    	String fillStyle = modelMenu.getFillStyle();
    	if (UtilValidate.isNotEmpty(fillStyle)) {
    		buffer.append("<div class=\"" + fillStyle + "\">&nbsp;</div>");
    	}
        //String menuContainerStyle = modelMenu.getMenuContainerStyle(context);
        buffer.append("</div>");
        this.appendWhitespace(buffer);
        
        userLoginIdHasChanged = userLoginIdHasChanged(); 
        GenericValue userLogin = (GenericValue)request.getSession().getAttribute("userLogin");
        if (userLogin != null) {
            String userLoginId = userLogin.getString("userLoginId");
            //request.getSession().setAttribute("userLoginIdAtPermGrant", userLoginId);