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org.richfaces.renderkit.ListRendererBase Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.renderkit;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.Collections;
import java.util.Map;
import javax.faces.FacesException;
import javax.faces.application.ResourceDependency;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.render.Renderer;
import org.ajax4jsf.model.DataVisitResult;
import org.ajax4jsf.model.DataVisitor;
import org.richfaces.component.AbstractList;
import org.richfaces.component.ListType;
import org.richfaces.component.UISequence;
import org.richfaces.component.util.HtmlUtil;
import org.richfaces.log.RichfacesLogger;
import org.richfaces.renderkit.util.RendererUtils;
/**
* @author Nick Belaevski
*
*/
@ResourceDependency(library = "org.richfaces", name = "list.ecss")
public abstract class ListRendererBase extends Renderer {
private static final Map ROW_HANDLER_ATTRIBUTES = Collections
.unmodifiableMap(ComponentAttribute.createMap(
new ComponentAttribute(HtmlConstants.ONCLICK_ATTRIBUTE).setEventNames("rowclick").setComponentAttributeName(
"onrowclick"),
new ComponentAttribute(HtmlConstants.ONDBLCLICK_ATTRIBUTE).setEventNames("rowdblclick").setComponentAttributeName(
"onrowdblclick"),
new ComponentAttribute(HtmlConstants.ONMOUSEDOWN_ATTRIBUTE).setEventNames("rowmousedown")
.setComponentAttributeName("onrowmousedown"),
new ComponentAttribute(HtmlConstants.ONMOUSEUP_ATTRIBUTE).setEventNames("rowmouseup").setComponentAttributeName(
"onrowmouseup"),
new ComponentAttribute(HtmlConstants.ONMOUSEOVER_ATTRIBUTE).setEventNames("rowmouseover")
.setComponentAttributeName("onrowmouseover"),
new ComponentAttribute(HtmlConstants.ONMOUSEMOVE_ATTRIBUTE).setEventNames("rowmousemove")
.setComponentAttributeName("onrowmousemove"),
new ComponentAttribute(HtmlConstants.ONMOUSEOUT_ATTRIBUTE).setEventNames("rowmouseout").setComponentAttributeName(
"onrowmouseout"),
new ComponentAttribute(HtmlConstants.ONKEYPRESS_ATTRIBUTE).setEventNames("rowkeypress").setComponentAttributeName(
"onrowkeypress"), new ComponentAttribute(HtmlConstants.ONKEYDOWN_ATTRIBUTE).setEventNames("rowkeydown")
.setComponentAttributeName("onrowkeydown"), new ComponentAttribute(HtmlConstants.ONKEYUP_ATTRIBUTE)
.setEventNames("rowkeyup").setComponentAttributeName("onrowkeyup")));
private RendererUtils rendererUtils = RendererUtils.getInstance();
/**
* @author Nick Belaevski
*
*/
private class SimpleItemsEncoder extends ItemsEncoder {
private String itemClass;
public SimpleItemsEncoder(String itemClass) {
super();
this.itemClass = itemClass;
}
@Override
protected void encodeRow(FacesContext context, UISequence sequence, SequenceRendererHelper helper) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement(HtmlConstants.LI_ELEMENT, sequence);
if (rendererUtils.hasExplicitId(sequence)) {
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, sequence.getContainerClientId(context), null);
}
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE,
HtmlUtil.concatClasses(helper.getRowClass(), helper.getColumnClass(), itemClass), null);
renderHandlers(context, sequence);
rendererUtils.encodeChildren(context, sequence);
writer.endElement(HtmlConstants.LI_ELEMENT);
}
public void encodeFakeItem(FacesContext context, UIComponent component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement(HtmlConstants.LI_ELEMENT, component);
writer.writeAttribute(HtmlConstants.STYLE_ATTRIBUTE, "display:none", null);
writer.endElement(HtmlConstants.LI_ELEMENT);
}
}
/**
* @author Nick Belaevski
*
*/
private final class DefinitionItemsEncoder extends ItemsEncoder {
@Override
protected void encodeRow(FacesContext context, UISequence sequence, SequenceRendererHelper helper) throws IOException {
ResponseWriter writer = context.getResponseWriter();
UIComponent termFacet = sequence.getFacet(AbstractList.TERM);
if (termFacet != null) {
writer.startElement(HtmlConstants.DT_ELEMENT, sequence);
if (rendererUtils.hasExplicitId(sequence)) {
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, sequence.getContainerClientId(context) + ".dt", null);
}
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE,
HtmlUtil.concatClasses(helper.getRowClass(), helper.getColumnClass(), "rf-dlst-trm"), null);
renderHandlers(context, sequence);
termFacet.encodeAll(context);
writer.endElement(HtmlConstants.DT_ELEMENT);
}
writer.startElement(HtmlConstants.DD_ELEMENT, sequence);
if (rendererUtils.hasExplicitId(sequence)) {
writer.writeAttribute(HtmlConstants.ID_ATTRIBUTE, sequence.getContainerClientId(context), null);
}
writer.writeAttribute(HtmlConstants.CLASS_ATTRIBUTE,
HtmlUtil.concatClasses(helper.getRowClass(), helper.getColumnClass(), "rf-dlst-dfn"), null);
renderHandlers(context, sequence);
rendererUtils.encodeChildren(context, sequence);
writer.endElement(HtmlConstants.DD_ELEMENT);
}
public void encodeFakeItem(FacesContext context, UIComponent component) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement(HtmlConstants.DD_ELEMENT, component);
writer.writeAttribute(HtmlConstants.STYLE_ATTRIBUTE, "display:none", null);
writer.endElement(HtmlConstants.DD_ELEMENT);
}
}
private abstract class ItemsEncoder implements DataVisitor {
protected void renderHandlers(FacesContext context, UISequence sequence) throws IOException {
RenderKitUtils.renderPassThroughAttributesOptimized(context, sequence, ROW_HANDLER_ATTRIBUTES);
}
protected abstract void encodeRow(FacesContext context, UISequence sequence, SequenceRendererHelper helper)
throws IOException;
public DataVisitResult process(FacesContext context, Object rowKey, Object argument) {
SequenceRendererHelper helper = (SequenceRendererHelper) argument;
UISequence sequence = helper.getSequence();
sequence.setRowKey(context, rowKey);
if (sequence.isRowAvailable()) {
helper.nextRow();
try {
encodeRow(context, sequence, helper);
} catch (IOException e) {
throw new FacesException(e.getMessage(), e);
}
return DataVisitResult.CONTINUE;
} else {
return DataVisitResult.STOP;
}
}
public abstract void encodeFakeItem(FacesContext context, UIComponent component) throws IOException;
}
private ItemsEncoder unorderedListItemsEncoder = new SimpleItemsEncoder("rf-ulst-itm");
private ItemsEncoder orderedListItemsEncoder = new SimpleItemsEncoder("rf-olst-itm");
private ItemsEncoder definitionItemsEncoder = new DefinitionItemsEncoder();
protected String getListClass(ListType type) {
switch (type) {
case ordered:
return "rf-olst";
case unordered:
return "rf-ulst";
case definitions:
return "rf-dlst";
default:
throw new IllegalArgumentException(type.toString());
}
}
protected ItemsEncoder getItemsEncoderByType(ListType type) {
switch (type) {
case ordered:
return orderedListItemsEncoder;
case unordered:
return unorderedListItemsEncoder;
case definitions:
return definitionItemsEncoder;
default:
throw new IllegalArgumentException(type.toString());
}
}
protected ListType getType(UIComponent component) {
ListType type = ((AbstractList) component).getType();
if (type == null) {
String exceptionMessage = MessageFormat.format("Type for rich:list {0} is required!",
RichfacesLogger.getComponentPath(component));
throw new IllegalArgumentException(exceptionMessage);
}
return type;
}
protected String getStyleClass(UIComponent component, ListType listType) {
String styleClass = (String) component.getAttributes().get(HtmlConstants.STYLE_CLASS_ATTR);
return HtmlUtil.concatClasses(styleClass, getListClass(listType));
}
protected String getElementId(FacesContext facesContext, UIComponent component) {
if (rendererUtils.hasExplicitId(component)) {
return component.getContainerClientId(facesContext);
}
return null;
}
protected void encodeListItems(FacesContext context, UIComponent component, ListType listType) throws IOException {
AbstractList list = (AbstractList) component;
try {
ItemsEncoder itemsEncoder = getItemsEncoderByType(listType);
SequenceRendererHelper rendererHelper = new SequenceRendererHelper(list);
list.walk(context, itemsEncoder, rendererHelper);
if (!rendererHelper.hasWalkedOverRows()) {
itemsEncoder.encodeFakeItem(context, component);
}
} catch (FacesException e) {
// TODO nick - review
if (e.getCause() instanceof IOException) {
throw (IOException) e.getCause();
} else {
throw e;
}
}
}
@Override
public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
// do nothing
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
// do nothing
}
}
