/*
* 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.standard.standard.tag;
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.component.AbstractUIForm;
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.Command;
import org.apache.myfaces.tobago.renderkit.html.CommandMap;
import org.apache.myfaces.tobago.renderkit.html.DataAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
import org.apache.myfaces.tobago.renderkit.html.HtmlButtonTypes;
import org.apache.myfaces.tobago.renderkit.html.HtmlElements;
import org.apache.myfaces.tobago.renderkit.html.JsonUtils;
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(final FacesContext facesContext, final UIComponent component) throws IOException {
final UIButton button = (UIButton) component;
final String clientId = button.getClientId(facesContext);
final boolean disabled = button.isDisabled();
final LabelWithAccessKey label = new LabelWithAccessKey(button);
final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
writer.startElement(HtmlElements.BUTTON, button);
writer.writeAttribute(HtmlAttributes.TYPE, HtmlButtonTypes.BUTTON, false);
writer.writeNameAttribute(clientId);
writer.writeIdAttribute(clientId);
HtmlRendererUtils.writeDataAttributes(facesContext, writer, button);
HtmlRendererUtils.renderTip(button, writer);
writer.writeAttribute(HtmlAttributes.DISABLED, disabled);
if (!disabled) {
final CommandMap map = new CommandMap(new Command(facesContext, button));
writer.writeAttribute(DataAttributes.COMMANDS, JsonUtils.encode(map), true);
writer.writeAttribute(HtmlAttributes.HREF, "#", false);
if (label.getAccessKey() != null) {
writer.writeAttribute(HtmlAttributes.ACCESSKEY, Character.toString(label.getAccessKey()), false);
}
final Integer tabIndex = button.getTabIndex();
if (tabIndex != null) {
writer.writeAttribute(HtmlAttributes.TABINDEX, tabIndex);
}
}
final Style style = new Style(facesContext, button);
writer.writeStyleAttribute(style);
writer.writeClassAttribute(Classes.create(button));
if (((UIButton) component).isDefaultCommand()) {
final AbstractUIForm form = ComponentUtils.findAncestor(component, AbstractUIForm.class);
writer.writeAttribute(DataAttributes.DEFAULT, form.getClientId(facesContext), false);
}
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, disabled);
}
writer.startElement(HtmlElements.IMG, null);
writer.writeAttribute(HtmlAttributes.SRC, image, true);
final String tip = button.getTip();
writer.writeAttribute(HtmlAttributes.ALT, tip != null ? tip : "", true);
writer.endElement(HtmlElements.IMG);
}
if (label.getText() != null) {
writer.startElement(HtmlElements.SPAN, null);
HtmlRendererUtils.writeLabelWithAccessKey(writer, label);
writer.endElement(HtmlElements.SPAN);
}
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());
}
}
@Override
public Measure getPreferredWidth(final FacesContext facesContext, final Configurable component) {
final UIButton button = (UIButton) component;
Measure width = Measure.ZERO;
final boolean image = button.getImage() != null;
if (image) {
width = getResourceManager().getThemeMeasure(facesContext, button, "imageWidth");
}
final LabelWithAccessKey label = new LabelWithAccessKey(button);
width = width.add(RenderUtils.calculateStringWidth(facesContext, button, label.getText()));
final 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;
}
}