/**
* 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.renderkit;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.ajax4jsf.javascript.JSEncoder;
import org.richfaces.component.UIDragIndicator;
import org.richfaces.component.nsutils.NSUtils;
//import org.richfaces.org.apache.commons.lang.StringEscapeUtils;
/**
* Base renderer class for drag indicator ( marker ).
* @author shura
*
*/
public class DragIndicatorRendererBase extends TemplateEncoderRendererBase {
public static final String ACCEPT_CLASS = "acceptClass";
public static final String REJECT_CLASS = "rejectClass";
public static final String ACCEPT = "accept";
public static final String DEFAULT = "default";
public static final String REJECT = "reject";
protected static final Collection MARKERS_PREDEFINED = new ArrayList(3);
static {
MARKERS_PREDEFINED.add(ACCEPT);
MARKERS_PREDEFINED.add(DEFAULT);
MARKERS_PREDEFINED.add(REJECT);
}
public static final String SINGLE = "single";
public static final String MULTI = "multi";
protected static final Collection FACETS_PREDEFINED = new ArrayList(2);
static {
FACETS_PREDEFINED.add(SINGLE);
FACETS_PREDEFINED.add(MULTI);
}
public DragIndicatorRendererBase() {
super();
}
/* (non-Javadoc)
* @see org.ajax4jsf.framework.renderer.RendererBase#getComponentClass()
*/
protected Class getComponentClass() {
return UIDragIndicator.class;
}
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
}
// public String encodeChild(FacesContext context, Object object) throws IOException {
// ResponseWriter responseWriter = context.getResponseWriter();
// StringWriter dumpWriter = new StringWriter();
//
// try {
// UIComponent component = (UIComponent) object;
//
// context.setResponseWriter(responseWriter.cloneWithWriter(dumpWriter));
//
// renderChild(context, component);
//
// context.getResponseWriter().flush();
// } finally {
// context.setResponseWriter(responseWriter);
// }
//
// return TemplateUtil.replaceParams(dumpWriter.getBuffer().toString(), "jsParams");
// }
protected boolean notHasFacet(UIComponent component, Object facetName) {
return component.getFacet((String) facetName) == null;
}
protected String getPredefinedMarker(FacesContext context, Object facetName) {
if (MARKERS_PREDEFINED.contains(facetName)) {
StringBuffer buff = new StringBuffer();
JSEncoder encoder = new JSEncoder();
String source = "<img alt=\"\" border=\"0\" width=\"16\" height=\"16\" src=\"" +
getResource("/org/richfaces/renderkit/html/images/" + facetName + ".gif").getUri(context, null) +"\" />";
char chars[] = source.toString().toCharArray();
for (int i = 0; i < chars.length; i++) {
char c = chars[i];
if (!encoder.compile(c)) {
buff.append(encoder.encode(c));
} else {
buff.append(c);
}
}
return buff.toString();
}
throw new IllegalArgumentException("No predefined marker with [" + facetName + "] name exists!");
}
public void encodeChildScripts(FacesContext context, UIComponent component)
throws IOException {
ResponseWriter responseWriter = context.getResponseWriter();
for (Iterator iterator = MARKERS_PREDEFINED.iterator(); iterator.hasNext();) {
String markerName = (String) iterator.next();
responseWriter.write("elt.markers['" + markerName + "'] = \"");
responseWriter.write(getPredefinedMarker(context, markerName));
responseWriter.write("\";\n");
}
for (Iterator iterator = FACETS_PREDEFINED.iterator(); iterator.hasNext();) {
String facetName = (String) iterator.next();
UIComponent facet = component.getFacet(facetName);
responseWriter.write("elt.indicatorTemplates['" + facetName + "'] = ");
if (facet != null && facet.isRendered()) {
writeScriptBody(context, facet, false);
responseWriter.write(";\n");
} else {
responseWriter.write(" DefaultDragIndicatorView;");
}
}
}
public void encodeNamespace(FacesContext context, UIDragIndicator component) throws IOException {
NSUtils.writeNameSpace(context, component);
}
public void encodeDnDParams(FacesContext context, UIDragIndicator component) throws IOException {
DnDParametersEncoder.getInstance().doEncode(context, component);
}
}