package org.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag;
/*
* 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.
*/
/*
* Created 07.02.2003 16:00:00.
* $Id: ButtonRenderer.java 1067203 2011-02-04 16:04:16Z lofwyr $
*/
import org.apache.myfaces.tobago.component.Attributes;
import org.apache.myfaces.tobago.component.UIButton;
import org.apache.myfaces.tobago.config.Configurable;
import org.apache.myfaces.tobago.context.ResourceManagerUtils;
import org.apache.myfaces.tobago.internal.util.AccessKeyMap;
import org.apache.myfaces.tobago.layout.Measure;
import org.apache.myfaces.tobago.renderkit.CommandRendererBase;
import org.apache.myfaces.tobago.renderkit.LabelWithAccessKey;
import org.apache.myfaces.tobago.renderkit.css.Classes;
import org.apache.myfaces.tobago.renderkit.css.Style;
import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlElements;
import org.apache.myfaces.tobago.renderkit.html.util.CommandRendererHelper;
import org.apache.myfaces.tobago.renderkit.html.util.HtmlRendererUtils;
import org.apache.myfaces.tobago.renderkit.util.RenderUtils;
import org.apache.myfaces.tobago.util.ComponentUtils;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import java.io.IOException;
public class ButtonRenderer extends CommandRendererBase {
private static final Logger LOG = LoggerFactory.getLogger(ButtonRenderer.class);
public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
UIButton button = (UIButton) component;
String clientId = button.getClientId(facesContext);
CommandRendererHelper helper = new CommandRendererHelper(facesContext, button, CommandRendererHelper.Tag.BUTTON);
TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
LabelWithAccessKey label = new LabelWithAccessKey(button);
writer.startElement(HtmlElements.BUTTON, button);
writer.writeAttribute(HtmlAttributes.TYPE, createButtonType(button), false);
writer.writeNameAttribute(clientId);
writer.writeIdAttribute(clientId);
HtmlRendererUtils.renderTip(button, writer);
writer.writeAttribute(HtmlAttributes.DISABLED, helper.isDisabled());
Integer tabIndex = button.getTabIndex();
if (tabIndex != null) {
writer.writeAttribute(HtmlAttributes.TABINDEX, tabIndex);
}
if (helper.getOnclick() != null) {
writer.writeAttribute(HtmlAttributes.ONCLICK, helper.getOnclick(), true);
}
Style style = new Style(facesContext, button);
writer.writeStyleAttribute(style);
HtmlRendererUtils.renderDojoDndItem(component, writer, true);
writer.writeClassAttribute(Classes.create(button));
writer.flush(); // force closing the start tag
String image = (String) button.getAttributes().get(Attributes.IMAGE);
if (image != null) {
if (ResourceManagerUtils.isAbsoluteResource(image)) {
// absolute Path to image : nothing to do
} else {
image = getImageWithPath(facesContext, image, helper.isDisabled());
}
writer.startElement(HtmlElements.IMG, null);
writer.writeAttribute(HtmlAttributes.SRC, image, true);
HtmlRendererUtils.renderImageTip(component, writer);
writer.endElement(HtmlElements.IMG);
}
if (label.getText() != null) {
if (image != null) {
writer.writeText(" "); // separator: e.g.
}
HtmlRendererUtils.writeLabelWithAccessKey(writer, label);
}
writer.endElement(HtmlElements.BUTTON);
if (label.getAccessKey() != null) {
if (LOG.isInfoEnabled()
&& !AccessKeyMap.addAccessKey(facesContext, label.getAccessKey())) {
LOG.info("duplicated accessKey : " + label.getAccessKey());
}
HtmlRendererUtils.addClickAcceleratorKey(
facesContext, button.getClientId(facesContext), label.getAccessKey());
}
if (ComponentUtils.getBooleanAttribute(component, Attributes.DEFAULT_COMMAND)) {
boolean transition = ComponentUtils.getBooleanAttribute(button, Attributes.TRANSITION);
HtmlRendererUtils.setDefaultTransition(facesContext, transition);
HtmlRendererUtils.writeScriptLoader(facesContext, null, new String[]{
"Tobago.setDefaultAction('" + button.getClientId(facesContext) + "')"});
}
}
private String createButtonType(UIComponent component) {
boolean defaultCommand = ComponentUtils.getBooleanAttribute(component, Attributes.DEFAULT_COMMAND);
return defaultCommand ? "submit" : "button";
}
@Override
public Measure getPreferredWidth(FacesContext facesContext, Configurable component) {
UIButton button = (UIButton) component;
Measure width = Measure.ZERO;
boolean image = button.getImage() != null;
if (image) {
width = getResourceManager().getThemeMeasure(facesContext, button, "imageWidth");
}
LabelWithAccessKey label = new LabelWithAccessKey(button);
width = width.add(RenderUtils.calculateStringWidth(facesContext, button, label.getText()));
Measure padding = getResourceManager().getThemeMeasure(facesContext, button, "paddingWidth");
// left padding, right padding and when an image and an text then a middle padding.
width = width.add(padding.multiply(image && label.getText() != null ? 3 : 2));
return width;
}
}