htmltreerenderer.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

        String style = label.getStyle(context);
        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>");
        
        appendWhitespace(writer);
    }


    public void renderLink(Writer writer, Map context, ModelTree.ModelNode.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 title = link.getTitle(context);
        if (UtilValidate.isNotEmpty(title)) {
            writer.write(" title=\"");
            writer.write(title);
            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 res = (HttpServletResponse) context.get("response");
            HttpServletRequest req = (HttpServletRequest) context.get("request");
            if (urlMode != null && urlMode.equalsIgnoreCase("intra-app")) {
                if (req != null && res != null) {
                    ServletContext ctx = (ServletContext) req.getAttribute("servletContext");
                    RequestHandler rh = (RequestHandler) ctx.getAttribute("_REQUEST_HANDLER_");
                    String urlString = rh.makeLink(req, res, 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")) {
                StringBuffer newURL = new StringBuffer();
                ContentUrlTag.appendContentPrefix(req, newURL);
                newURL.append(target);
                writer.write(newURL.toString());
            } else {
                writer.write(target);
            }

            writer.write("\"");
        }
        writer.write(">");
        
        // the text
        ModelTree.ModelNode.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, ModelTree.ModelNode.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) {
                    StringBuffer newURL = new StringBuffer();
                    ContentUrlTag.appendContentPrefix(request, newURL);
                    newURL.append(src);
                    writer.write(newURL.toString());
                }
            } else {
                writer.write(src);
            }

            writer.write("\"");
        }
        writer.write("/>");
        
    }

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

    public ScreenStringRenderer getScreenStringRenderer(Map context) {

        ScreenRenderer screenRenderer = (ScreenRenderer)context.get("screens"); 
        if (screenRenderer != null) {
            screenStringRenderer = screenRenderer.getScreenStringRenderer();
        } else {
            if (screenStringRenderer == null) {
                screenStringRenderer = new HtmlScreenRenderer();
            }
        }
        return screenStringRenderer;
    }
}