/*
* Copyright 2009 Prime Technology.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.primefaces.component.breadcrumb;
import java.io.IOException;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.menuitem.MenuItem;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.ComponentUtils;
public class BreadCrumbRenderer extends CoreRenderer {
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
BreadCrumb breadCrumb = (BreadCrumb) component;
if(breadCrumb.shouldBuildFromModel()) {
breadCrumb.buildMenuFromModel();
}
encodeMarkup(facesContext, breadCrumb);
encodeScript(facesContext, breadCrumb);
}
private void encodeScript(FacesContext facesContext, BreadCrumb breadCrumb) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = breadCrumb.getClientId(facesContext);
writer.startElement("script", null);
writer.writeAttribute("type", "text/javascript", null);
writer.write("jQuery(PrimeFaces.escapeClientId('" + clientId + "')).jBreadCrumb({");
writer.write("overlayClass:'ui-breadcrumb-chevron'");
if(!breadCrumb.isPreview()) {
int childCount = breadCrumb.getChildCount();
writer.write(",endElementsToLeaveOpen:" + childCount);
writer.write(",beginingElementsToLeaveOpen:" + childCount);
} else {
if(breadCrumb.getExpandedEndItems() != 1) writer.write(",endElementsToLeaveOpen:" + breadCrumb.getExpandedEndItems());
if(breadCrumb.getExpandedBeginningItems() != 1) writer.write(",beginingElementsToLeaveOpen:" + breadCrumb.getExpandedBeginningItems());
}
if(breadCrumb.getPreviewWidth() != 5) writer.write(",previewWidth:" + breadCrumb.getPreviewWidth());
if(breadCrumb.getExpandEffectDuration() != 800) writer.write(",timeExpansionAnimation:" + breadCrumb.getExpandEffectDuration());
if(breadCrumb.getCollapseEffectDuration() != 500) writer.write(",timeCompressionAnimation:" + breadCrumb.getCollapseEffectDuration());
if(breadCrumb.getInitialCollapseEffectDuration() != 600) writer.write(",timeInitialCollapse:" + breadCrumb.getInitialCollapseEffectDuration());
writer.write("});");
writer.endElement("script");
}
private void encodeMarkup(FacesContext facesContext, BreadCrumb breadCrumb) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = breadCrumb.getClientId(facesContext);
String defaultStyleClass = "ui-breadcrumb ui-module ui-widget ui-widget-header ui-corner-all";
String styleClass = breadCrumb.getStyleClass() == null ? defaultStyleClass : defaultStyleClass + " " + breadCrumb.getStyleClass();
writer.startElement("div", null);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("class", styleClass, null);
if(breadCrumb.getStyle() != null) writer.writeAttribute("style", breadCrumb.getStyle(), null);
writer.startElement("ul", null);
for(UIComponent child : breadCrumb.getChildren()) {
if(child.isRendered() && child instanceof MenuItem) {
writer.startElement("li", null);
encodeMenuItem(facesContext, (MenuItem) child);
writer.endElement("li");
}
}
writer.endElement("ul");
writer.endElement("div");
}
protected void encodeMenuItem(FacesContext facesContext, MenuItem menuItem) throws IOException {
ResponseWriter writer = facesContext.getResponseWriter();
if(menuItem.shouldRenderChildren()) {
renderChildren(facesContext, menuItem);
} else {
String clientId = menuItem.getClientId(facesContext);
writer.startElement("a", null);
writer.writeAttribute("id", clientId, null);
if(menuItem.getStyle() != null) writer.writeAttribute("style", menuItem.getStyle(), null);
if(menuItem.getStyleClass() != null) writer.writeAttribute("class", menuItem.getStyleClass(), null);
if(menuItem.getUrl() != null) {
writer.writeAttribute("href", getResourceURL(facesContext, menuItem.getUrl()), null);
if(menuItem.getOnclick() != null) writer.writeAttribute("onclick", menuItem.getOnclick(), null);
if(menuItem.getTarget() != null) writer.writeAttribute("target", menuItem.getTarget(), null);
} else {
writer.writeAttribute("href", "javascript:void(0)", null);
UIComponent form = ComponentUtils.findParentForm(facesContext, menuItem);
if(form == null) {
throw new FacesException("Breadcrumb must be inside a form element");
}
String formClientId = form.getClientId(facesContext);
String command = menuItem.isAjax() ? buildAjaxRequest(facesContext, menuItem, formClientId, clientId) : buildNonAjaxRequest(facesContext, menuItem, formClientId, clientId);
command = menuItem.getOnclick() == null ? command : menuItem.getOnclick() + ";" + command;
writer.writeAttribute("onclick", command, null);
}
if(menuItem.getValue() != null) writer.write((String) menuItem.getValue());
writer.endElement("a");
}
}
public void encodeChildren(FacesContext facesContext, UIComponent component) throws IOException {
// Do nothing
}
public boolean getRendersChildren() {
return true;
}
}