htmlscreenrenderer.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: HtmlScreenRenderer.java 7050 2006-03-22 20:53:39Z jonesde $
 *
 * Copyright (c) 2004 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.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.Writer;
import java.sql.Timestamp;
import java.util.Locale;
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.Debug;
import org.ofbiz.base.util.GeneralException;
import org.ofbiz.base.util.UtilDateTime;
import org.ofbiz.base.util.UtilFormatOut;
import org.ofbiz.base.util.UtilHttp;
import org.ofbiz.base.util.UtilMisc;
import org.ofbiz.base.util.UtilValidate;
import org.ofbiz.entity.GenericDelegator;
import org.ofbiz.entity.GenericEntityException;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.webapp.control.RequestHandler;
import org.ofbiz.webapp.taglib.ContentUrlTag;
import org.ofbiz.webapp.view.ViewHandlerException;
import org.ofbiz.widget.WidgetContentWorker;
import org.ofbiz.widget.screen.ModelScreenWidget;
import org.ofbiz.widget.screen.ScreenStringRenderer;

/**
 * Widget Library - HTML Form Renderer implementation
 *
 * @author     <a href="mailto:[e-mail]">David E. Jones</a>
 * @version    $Rev: 7050 $
 * @since      3.1
 */
public class HtmlScreenRenderer implements ScreenStringRenderer {

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

    public HtmlScreenRenderer() {}

    public void renderSectionBegin(Writer writer, Map context, ModelScreenWidget.Section section) throws IOException {
        // do nothing, this is just a place holder container for HTML
    }
    public void renderSectionEnd(Writer writer, Map context, ModelScreenWidget.Section section) throws IOException {
        // do nothing, this is just a place holder container for HTML
    }

    public void renderContainerBegin(Writer writer, Map context, ModelScreenWidget.Container container) throws IOException {
        writer.write("<div");

        String id = container.getId(context);
        if (UtilValidate.isNotEmpty(id)) {
            writer.write(" id=\"");
            writer.write(id);
            writer.write("\"");
        }
        
        String style = container.getStyle(context);
        if (UtilValidate.isNotEmpty(style)) {
            writer.write(" class=\"");
            writer.write(style);
            writer.write("\"");
        }
        
        writer.write(">");
        appendWhitespace(writer);
    }
    public void renderContainerEnd(Writer writer, Map context, ModelScreenWidget.Container container) throws IOException {
        writer.write("</div>");
        appendWhitespace(writer);
    }

    public void renderLabel(Writer writer, Map context, ModelScreenWidget.Label label) throws IOException {
        // open tag
        String style = label.getStyle(context);
        String id = label.getId(context);
        if (UtilValidate.isNotEmpty(style) || UtilValidate.isNotEmpty(id) ) {
       		writer.write("<span");
        	
            if (UtilValidate.isNotEmpty(id)) {
                writer.write(" id=\"");
                writer.write(id);
                writer.write("\"");
            }
            if (UtilValidate.isNotEmpty(style)) {
                writer.write(" class=\"");
                writer.write(style);
                writer.write("\"");
            }
            writer.write(">");
            
            // the text
            writer.write(label.getText(context));
            
            // close tag
       		writer.write("</span>");
        	
        } else {
            writer.write(label.getText(context));
        }
        
        appendWhitespace(writer);
    }

    public void renderLink(Writer writer, Map context, ModelScreenWidget.Link link) throws IOException {
        // open tag
        writer.write("<a");
        String id = link.getId(context);
        if (UtilValidate.isNotEmpty(id)) {
            writer.write(" id=\"");
            writer.write(id);
            writer.write("\"");
        }
        String style = link.getStyle(context);
        if (UtilValidate.isNotEmpty(style)) {
            writer.write(" class=\"");
            writer.write(style);
            writer.write("\"");
        }
        String name = link.getName(context);
        if (UtilValidate.isNotEmpty(name)) {
            writer.write(" name=\"");
            writer.write(name);
            writer.write("\"");
        }
        String targetWindow = link.getTargetWindow(context);
        if (UtilValidate.isNotEmpty(targetWindow)) {
            writer.write(" target=\"");
            writer.write(targetWindow);
            writer.write("\"");
        }
        String target = link.getTarget(context);
        if (UtilValidate.isNotEmpty(target)) {
            writer.write(" href=\"");
            String urlMode = link.getUrlMode();
            String prefix = link.getPrefix(context);
            boolean fullPath = link.getFullPath();
            boolean secure = link.getSecure();
            boolean encode = link.getEncode();
            HttpServletResponse response = (HttpServletResponse) context.get("response");
            HttpServletRequest request = (HttpServletRequest) context.get("request");
            if (urlMode != null && urlMode.equalsIgnoreCase("intra-app")) {
                if (request != null && response != null) {
                    ServletContext ctx = (ServletContext) request.getAttribute("servletContext");
                    RequestHandler rh = (RequestHandler) ctx.getAttribute("_REQUEST_HANDLER_");
                    String urlString = rh.makeLink(request, response, target, fullPath, secure, encode);
                    writer.write(urlString);
                } else if (prefix != null) {
                    writer.write(prefix + target);
                } else {
                    writer.write(target);
                }
            } else  if (urlMode != null && urlMode.equalsIgnoreCase("content")) {
                if (request != null && response != null) {
                    StringBuffer newURL = new StringBuffer();
                    ContentUrlTag.appendContentPrefix(request, newURL);
                    newURL.append(target);
                    writer.write(newURL.toString());
                }
            } else {
                writer.write(target);
            }

            writer.write("\"");
        }
        writer.write(">");
        
        // the text
        ModelScreenWidget.Image img = link.getImage();
        if (img == null)
            writer.write(link.getText(context));
        else
            renderImage(writer, context, img);
        
        // close tag
        writer.write("</a>");
        
        appendWhitespace(writer);
    }

    public void renderImage(Writer writer, Map context, ModelScreenWidget.Image image) throws IOException {
        // open tag
        writer.write("<img ");
        String id = image.getId(context);
        if (UtilValidate.isNotEmpty(id)) {
            writer.write(" id=\"");
            writer.write(id);
            writer.write("\"");
        }
        String style = image.getStyle(context);
        if (UtilValidate.isNotEmpty(style)) {
            writer.write(" class=\"");
            writer.write(style);
            writer.write("\"");
        }
        String wid = image.getWidth(context);
        if (UtilValidate.isNotEmpty(wid)) {
            writer.write(" width=\"");
            writer.write(wid);
            writer.write("\"");
        }
        String hgt = image.getHeight(context);
        if (UtilValidate.isNotEmpty(hgt)) {
            writer.write(" height=\"");
            writer.write(hgt);
            writer.write("\"");
        }
        String border = image.getBorder(context);
        if (UtilValidate.isNotEmpty(border)) {
            writer.write(" border=\"");
            writer.write(border);
            writer.write("\"");
        }
        String src = image.getSrc(context);
        if (UtilValidate.isNotEmpty(src)) {
            writer.write(" src=\"");
            String urlMode = image.getUrlMode();
            boolean fullPath = false;
            boolean secure = false;
            boolean encode = false;
            HttpServletResponse response = (HttpServletResponse) context.get("response");
            HttpServletRequest request = (HttpServletRequest) context.get("request");
            if (urlMode != null && urlMode.equalsIgnoreCase("intra-app")) {
                if (request != null && response != null) {
                    ServletContext ctx = (ServletContext) request.getAttribute("servletContext");
                    RequestHandler rh = (RequestHandler) ctx.getAttribute("_REQUEST_HANDLER_");
                    String urlString = rh.makeLink(request, response, src, fullPath, secure, encode);
                    writer.write(urlString);
                } else {
                    writer.write(src);
                }
            } else  if (urlMode != null && urlMode.equalsIgnoreCase("content")) {
                if (request != null && response != null) {