/**
* License Agreement.
*
* JBoss RichFaces - Ajax4jsf Component Library
*
* 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.component.util;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.faces.component.UIComponent;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import org.ajax4jsf.javascript.ScriptUtils;
import org.richfaces.renderkit.util.HtmlDimensions;
import org.richfaces.renderkit.util.RendererUtils;
import com.google.common.base.Strings;
/**
* @author Nick Belaevski - nbelaevski@exadel.com created 09.02.2007
* @author <a href="http://community.jboss.org/people/bleathem">Brian Leathem</a>
*/
public final class HtmlUtil {
public static final Pattern ID_SELECTOR_PATTERN = Pattern
.compile("#((?:-[A-Za-z_-]|[A-Za-z_]|\\\\[^A-F0-9U]|\\\\[A-F0-9]{1,6}\\s?|\\\\U[0-9A-F]{2}(?:A[1-9A-F]|[B-F][0-9A-F]))(?:\\\\[A-F0-9]{1,6}\\s?|[A-Za-z0-9_-]|\\\\:)*)");
private static final String ORG_AJAX4JSF = "org.ajax4jsf.";
private static final String ORG_RICHFACES = "org.richfaces.";
private static final RendererUtils RENDERER_UTILS = RendererUtils.getInstance();
private HtmlUtil() {
}
public static String addToSize(String declaration, String delta) {
Double doubleDelta = HtmlDimensions.decode(delta);
Double decoded = HtmlDimensions.decode(declaration);
return HtmlDimensions.formatPx(new Double(decoded.doubleValue() + doubleDelta.doubleValue()));
}
private static String escapeReplacement(String s) {
return s.replaceAll("(\\\\|\\$)", "\\\\$1");
}
/**
* <p>
* Expands ID selectors in given CSS selector from componentId to clientId.
* </p>
*
* <p>
* e.g. <code>#componentId</code> turns out into <code>#form:componentId</code>
* </p>
*
* <p>
* For expansion, {@link RendererUtils#findComponentFor(FacesContext, UIComponent, String)} is used.
* </p>
*
* @param selector the CSS selector
* @param component the root component for finding other components in tree
* @param context the {@link FacesContext}
* @return The expanded CSS selector where ID selectors are expanded from componentIds to clientIds
*/
public static String expandIdSelector(String selector, UIComponent component, FacesContext context) {
Matcher matcher = ID_SELECTOR_PATTERN.matcher(selector);
StringBuffer sb = new StringBuffer();
while (matcher.find()) {
// make new id selector here using matcher.group(1)
String unescaped = matcher.group(1).replaceAll("\\\\:", ":");
UIComponent target = RENDERER_UTILS.findComponentFor(context, component, unescaped);
if (target != null) {
matcher.appendReplacement(sb,
escapeReplacement("#" + ScriptUtils.escapeCSSMetachars(target.getClientId(context))));
}
}
matcher.appendTail(sb);
return sb.toString();
}
public static String idsToIdSelector(String ids) {
StringBuffer buffer = new StringBuffer();
if (ids != null) {
String[] idString = ids.split("\\s*,\\s*");
for (int i = 0; i < idString.length; i++) {
if (i > 0) {
buffer.append(",");
}
idString[i] = idString[i].replaceAll(":", "\\\\:");
buffer.append("#").append(idString[i]);
}
}
return buffer.toString();
}
public static boolean shouldWriteId(UIComponent component) {
String rendererType = component.getRendererType();
String id = component.getId();
if ((id != null) && !id.startsWith(UIViewRoot.UNIQUE_ID_PREFIX)) {
return true;
}
if ((rendererType != null) && (rendererType.startsWith(ORG_AJAX4JSF) || rendererType.startsWith(ORG_RICHFACES))) {
return true;
}
return false;
}
private static String concat(char separator, Object... objects) {
StringBuilder result = new StringBuilder();
for (Object o : objects) {
String s = (String) o;
if (!Strings.isNullOrEmpty(s)) {
if (result.length() != 0) {
result.append(separator);
}
result.append(s.trim());
}
}
return result.toString();
}
public static String concatClasses(Object... classes) {
return concat(' ', classes);
}
public static String concatStyles(Object... styles) {
return concat(';', styles);
}
public static String escapeHtml(String html) {
return html.replaceAll("&", "&")
.replaceAll("<", "<")
.replaceAll(">", ">")
.replaceAll("\"", """)
.replaceAll("'", "'");
}
}