org.richfaces.highlight.CssXhtmlRenderer Maven / Gradle / Ivy
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/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.highlight;
import java.awt.Color;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.StringReader;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Formattable;
import java.util.Formatter;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.wst.css.core.internal.parser.CSSTokenizer;
import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts;
import com.uwyn.jhighlight.highlighter.ExplicitStateHighlighter;
import com.uwyn.jhighlight.renderer.XhtmlRenderer;
import com.uwyn.jhighlight.tools.StringUtils;
public class CssXhtmlRenderer extends XhtmlRenderer {
static class WrapperBean {
private T wrapped;
public WrapperBean(T wrapped) {
this.wrapped = wrapped;
}
@Override
public boolean equals(Object obj) {
return ((WrapperBean)obj).get() == wrapped;
}
public T get() {
return wrapped;
}
@Override
public int hashCode() {
return wrapped.hashCode();
}
@Override
public String toString() {
return super.toString();
}
}
class FormattableToken implements Formattable {
private String token;
public FormattableToken(String token) {
this.token = token;
}
public void formatTo(Formatter formatter, int flags, int width,
int precision) {
try {
formatter.out().append(getClassForToken(token));
} catch (IOException e) {
e.printStackTrace();
}
}
}
class XHTMLString implements Formattable {
private String text;
public XHTMLString(String text) {
this.text = text;
}
public void formatTo(Formatter formatter, int flags, int width,
int precision) {
String s =
StringUtils.replace(StringUtils.encodeHtml(text), " ", " ")
.replaceAll("\\r?\\n", "
\n");
try {
formatter.out().append(s);
} catch (IOException e) {
e.printStackTrace();
}
}
}
class FormattableColor implements Formattable {
private Color color;
public FormattableColor(Color color) {
this.color = color;
}
public void formatTo(Formatter formatter, int flags, int width,
int precision) {
try {
formatter.out().append("#").append(
Integer.toHexString(color.getRGB()).substring(2)
.toUpperCase());
} catch (IOException e) {
e.printStackTrace();
}
}
}
private static final Map fContextToStyleMap = new HashMap();
private static final String classTemplate = ".css_%s";
private static final String colorTemplate = "color:%s;";
private static final String tokenTemplate = "%s";
private static final Map tokenClasses = new HashMap();
private Map defaultCss = null;
static {
//eclipse source code copied
fContextToStyleMap.put(CSSRegionContexts.CSS_COMMENT, IStyleConstantsCSS.COMMENT);
fContextToStyleMap.put(CSSRegionContexts.CSS_CDO, IStyleConstantsCSS.COMMENT);
fContextToStyleMap.put(CSSRegionContexts.CSS_CDC, IStyleConstantsCSS.COMMENT);
fContextToStyleMap.put(CSSRegionContexts.CSS_S, IStyleConstantsCSS.NORMAL);
fContextToStyleMap.put(CSSRegionContexts.CSS_DELIMITER, IStyleConstantsCSS.SEMI_COLON);
fContextToStyleMap.put(CSSRegionContexts.CSS_LBRACE, IStyleConstantsCSS.CURLY_BRACE);
fContextToStyleMap.put(CSSRegionContexts.CSS_RBRACE, IStyleConstantsCSS.CURLY_BRACE);
fContextToStyleMap.put(CSSRegionContexts.CSS_IMPORT, IStyleConstantsCSS.ATMARK_RULE);
fContextToStyleMap.put(CSSRegionContexts.CSS_PAGE, IStyleConstantsCSS.ATMARK_RULE);
fContextToStyleMap.put(CSSRegionContexts.CSS_MEDIA, IStyleConstantsCSS.ATMARK_RULE);
fContextToStyleMap.put(CSSRegionContexts.CSS_FONT_FACE, IStyleConstantsCSS.ATMARK_RULE);
fContextToStyleMap.put(CSSRegionContexts.CSS_CHARSET, IStyleConstantsCSS.ATMARK_RULE);
fContextToStyleMap.put(CSSRegionContexts.CSS_ATKEYWORD, IStyleConstantsCSS.ATMARK_RULE);
fContextToStyleMap.put(CSSRegionContexts.CSS_STRING, IStyleConstantsCSS.STRING);
fContextToStyleMap.put(CSSRegionContexts.CSS_URI, IStyleConstantsCSS.URI);
fContextToStyleMap.put(CSSRegionContexts.CSS_MEDIUM, IStyleConstantsCSS.MEDIA);
fContextToStyleMap.put(CSSRegionContexts.CSS_MEDIA_SEPARATOR, IStyleConstantsCSS.MEDIA);
fContextToStyleMap.put(CSSRegionContexts.CSS_CHARSET_NAME, IStyleConstantsCSS.STRING);
fContextToStyleMap.put(CSSRegionContexts.CSS_PAGE_SELECTOR, IStyleConstantsCSS.MEDIA);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_ELEMENT_NAME, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_UNIVERSAL, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_PSEUDO, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_CLASS, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_ID, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_COMBINATOR, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_SEPARATOR, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_ATTRIBUTE_START, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_ATTRIBUTE_END, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_ATTRIBUTE_NAME, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_ATTRIBUTE_VALUE, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_SELECTOR_ATTRIBUTE_OPERATOR, IStyleConstantsCSS.SELECTOR);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_PROPERTY, IStyleConstantsCSS.PROPERTY_NAME);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_IDENT, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_DIMENSION, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_PERCENTAGE, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_NUMBER, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_PARENTHESIS_CLOSE, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_STRING, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_URI, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_HASH, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_UNICODE_RANGE, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_IMPORTANT, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_OPERATOR, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_VALUE_S, IStyleConstantsCSS.PROPERTY_VALUE);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_SEPARATOR, IStyleConstantsCSS.COLON);
fContextToStyleMap.put(CSSRegionContexts.CSS_DECLARATION_DELIMITER, IStyleConstantsCSS.SEMI_COLON);
fContextToStyleMap.put(CSSRegionContexts.CSS_UNKNOWN, IStyleConstantsCSS.ERROR);
}
public static void main(String[] args) throws Exception {
//new CssXhtmlRenderer().generateCSSTemplate(new File("D:\\eclipse\\rf\\rf3\\docs\\userguide\\en\\src\\main\\resources\\css\\css.css"));
//new CssXhtmlRenderer().generateClassesForTokens();
//System.exit(0);
String path = "D:\\eclipse\\rf\\rf3\\samples\\richfaces-demo\\src\\main\\webapp\\css\\common.css";
if (args.length > 0) {
path = args[0];
}
FileReader fileReader = new FileReader(path);
try {
new CssXhtmlRenderer().highlight("aaaa", new FileInputStream(path), new FileOutputStream("css.html"), null, false);
} finally {
fileReader.close();
}
}
private void generateClassesForTokens() {
Map, String> fieldMap = new HashMap, String>();
try {
Field[] fields = IStyleConstantsCSS.class.getFields();
for (int i = 0; i < fields.length; i++) {
Field field = fields[i];
int modifiers = field.getModifiers();
if (Modifier.isFinal(modifiers) && Modifier.isStatic(modifiers)) {
String name = field.getName().toLowerCase();
Object object = field.get(null);
if (object instanceof Color) {
fieldMap.put(new WrapperBean((Color) object), name);
}
}
}
} catch(Exception e) {
e.printStackTrace();
}
Iterator> iterator = fContextToStyleMap.entrySet().iterator();
while(iterator.hasNext()) {
Entry entry = iterator.next();
String token = entry.getKey();
Color color = entry.getValue();
WrapperBean bean = new WrapperBean(color);
String string = fieldMap.get(bean);
tokenClasses.put(token, string);
}
}
public Map generateCSSTemplate() {
Map m = new HashMap();
Field[] fields = IStyleConstantsCSS.class.getFields();
for (int i = 0; i < fields.length; i++) {
Field field = fields[i];
int modifiers = field.getModifiers();
if (Modifier.isFinal(modifiers) && Modifier.isStatic(modifiers)) {
String name = field.getName().toLowerCase();
try {
Object object = field.get(null);
if (object instanceof Color) {
FormattableColor color = new FormattableColor((Color) object);
m.put(String.format(classTemplate, name), String.format(colorTemplate, color));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
return m;
}
public String getClassForToken(String token) {
synchronized (tokenClasses) {
if (tokenClasses.isEmpty()) {
generateClassesForTokens();
}
}
return tokenClasses.get(token);
}
protected String getCssClass(int arg0) {
return null;
}
@Override
protected synchronized Map getDefaultCssStyles() {
if (defaultCss == null) {
defaultCss = generateCSSTemplate();
}
return defaultCss;
}
protected ExplicitStateHighlighter getHighlighter() {
return null;
}
/* (non-Javadoc)
* @see com.uwyn.jhighlight.renderer.XhtmlRenderer#highlight(java.lang.String, java.io.InputStream, java.io.OutputStream, java.lang.String, boolean)
*/
public void highlight(String name, InputStream in, OutputStream out,
String encoding, boolean fragment) throws IOException {
InputStreamReader reader = encoding == null ?
new InputStreamReader(in) :
new InputStreamReader(in, encoding);
StringBuffer b = new StringBuffer();
char [] buffer = new char[1024];
int read;
while((read = reader.read(buffer)) != -1) {
b.append(buffer, 0, read);
}
highlight(name, b.toString(), out, encoding, fragment);
}
private void highlight(String name, String in, OutputStream output,
String encoding, boolean fragment) throws IOException{
String string = StringUtils.convertTabsToSpaces(in, 4);
PrintWriter out = new PrintWriter(output);
if (fragment)
{
out.write(getXhtmlHeaderFragment(name));
}
else
{
out.write(getXhtmlHeader(name));
}
CSSTokenizer tokenizer = new CSSTokenizer(new StringReader(string));
while (!tokenizer.isEOF()) {
String token = tokenizer.primGetNextToken();
if (token != null) {
String text = tokenizer.yytext();
out.printf(tokenTemplate, new FormattableToken(token), new XHTMLString(text));
} else {
if (tokenizer.yylength() > 0) {
throw new IllegalStateException();
}
}
}
if (!fragment) {
out.write(getXhtmlFooter());
}
out.flush();
out.close();
}
public String highlight(String name, String in, String encoding,
boolean fragment) throws IOException {
ByteArrayOutputStream s = new ByteArrayOutputStream();
highlight(name, in, s, encoding, fragment);
s.flush();
s.close();
return (encoding == null) ? s.toString() : s.toString(encoding);
}
}