/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag;
/*
* Created 07.02.2003 16:00:00.
* $Id: LinkRenderer.java 1368577 2012-08-02 16:20:31Z lofwyr $
*/
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.tobago.component.ComponentUtil;
import org.apache.myfaces.tobago.component.UICommand;
import org.apache.myfaces.tobago.component.UILinkCommand;
import org.apache.myfaces.tobago.context.ResourceManagerUtil;
import org.apache.myfaces.tobago.renderkit.CommandRendererBase;
import org.apache.myfaces.tobago.renderkit.LabelWithAccessKey;
import org.apache.myfaces.tobago.renderkit.html.CommandRendererHelper;
import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlConstants;
import org.apache.myfaces.tobago.renderkit.html.HtmlRendererUtil;
import org.apache.myfaces.tobago.util.AccessKeyMap;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import java.io.IOException;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_DISABLED;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_IMAGE;
public class LinkRenderer extends CommandRendererBase {
private static final Log LOG = LogFactory.getLog(LinkRenderer.class);
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
if (!(component instanceof UICommand)) {
LOG.error("Wrong type: Need " + UICommand.class.getName() + ", but was " + component.getClass().getName());
return;
}
UICommand command = (UICommand) component;
String clientId = command.getClientId(facesContext);
CommandRendererHelper helper = new CommandRendererHelper(facesContext, command, CommandRendererHelper.Tag.ANCHOR);
String href = helper.getHref();
TobagoResponseWriter writer = HtmlRendererUtil.getTobagoResponseWriter(facesContext);
LabelWithAccessKey label = new LabelWithAccessKey(command);
if (helper.isDisabled()) {
writer.startElement(HtmlConstants.SPAN, command);
} else {
writer.startElement(HtmlConstants.A, command);
writer.writeAttribute(HtmlAttributes.HREF, href, true);
if (helper.getOnclick() != null) {
writer.writeAttribute(HtmlAttributes.ONCLICK, helper.getOnclick(), true);
}
if (helper.getTarget() != null) {
writer.writeAttribute(HtmlAttributes.TARGET, helper.getTarget(), true);
}
Integer tabIndex = null;
if (command instanceof UILinkCommand) {
tabIndex = ((UILinkCommand) command).getTabIndex();
}
if (tabIndex != null) {
writer.writeAttribute(HtmlAttributes.TABINDEX, tabIndex);
}
}
writer.writeClassAttribute();
writer.writeIdAttribute(clientId);
writer.writeNameAttribute(clientId);
HtmlRendererUtil.renderTip(command, writer);
writer.flush();
// image
String image = (String) command.getAttributes().get(ATTR_IMAGE);
if (image != null) {
if (ResourceManagerUtil.isAbsoluteResource(image)) {
// absolute Path to image : nothing to do
} else {
image = ResourceManagerUtil.getImageWithPath(facesContext, image, helper);
}
writer.startElement(HtmlConstants.IMG, command);
writer.writeAttribute(HtmlAttributes.SRC, image, true);
writer.writeAttribute(HtmlAttributes.BORDER, 0); // TODO: is border=0 setting via style possible?
HtmlRendererUtil.renderImageTip(command, writer);
HtmlRendererUtil.renderTip(command, writer);
writer.endElement(HtmlConstants.IMG);
}
// label
if (label.getText() != null) {
if (image != null) {
writer.write(" "); // separator: e.g.
}
HtmlRendererUtil.writeLabelWithAccessKey(writer, label);
}
if (label.getAccessKey() != null) {
if (LOG.isInfoEnabled()
&& !AccessKeyMap.addAccessKey(facesContext, label.getAccessKey())) {
LOG.info("dublicated accessKey : " + label.getAccessKey());
}
HtmlRendererUtil.addClickAcceleratorKey(facesContext, clientId, label.getAccessKey());
}
}
public void encodeEnd(FacesContext facesContext, UIComponent component)
throws IOException {
if (!(component instanceof UICommand)) {
LOG.error("Wrong type: Need " + UICommand.class.getName() + ", but was " + component.getClass().getName());
return;
}
ResponseWriter writer = facesContext.getResponseWriter();
if (ComponentUtil.getBooleanAttribute(component, ATTR_DISABLED)) {
writer.endElement(HtmlConstants.SPAN);
} else {
writer.endElement(HtmlConstants.A);
}
}
}