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org.primefaces.component.selectoneradio.SelectOneRadioRenderer Maven / Gradle / Ivy
/*
* Copyright 2009-2013 PrimeTek.
*
* 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.selectoneradio;
import java.io.IOException;
import java.util.List;
import javax.el.ValueExpression;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.component.UIInput;
import javax.faces.component.UINamingContainer;
import javax.faces.component.UISelectOne;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import javax.faces.model.SelectItem;
import org.primefaces.component.radiobutton.RadioButton;
import org.primefaces.renderkit.SelectOneRenderer;
import org.primefaces.util.HTML;
import org.primefaces.util.WidgetBuilder;
public class SelectOneRadioRenderer extends SelectOneRenderer {
@Override
public Object getConvertedValue(FacesContext context, UIComponent component, Object submittedValue) throws ConverterException {
return context.getRenderKit().getRenderer("javax.faces.SelectOne", "javax.faces.Radio").getConvertedValue(context, component, submittedValue);
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
SelectOneRadio radio = (SelectOneRadio) component;
encodeMarkup(context, radio);
encodeScript(context, radio);
}
protected void encodeMarkup(FacesContext context, SelectOneRadio radio) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = radio.getClientId(context);
String style = radio.getStyle();
String styleClass = radio.getStyleClass();
styleClass = styleClass == null ? SelectOneRadio.STYLE_CLASS : SelectOneRadio.STYLE_CLASS + " " + styleClass;
String layout = radio.getLayout();
if(layout == null) {
layout = "lineDirection";
}
boolean custom = layout.equals("custom");
List selectItems = getSelectItems(context, radio);
if(custom) {
//populate selectitems for radiobutton access
radio.setSelectItems(getSelectItems(context, radio));
//render dummy markup to enable processing of ajax behaviors (finding form on client side)
writer.startElement("span", radio);
writer.writeAttribute("id", radio.getClientId(context), "id");
writer.endElement("span");
}
else {
writer.startElement("table", radio);
writer.writeAttribute("id", clientId, "id");
writer.writeAttribute("class", styleClass, "styleClass");
if(style != null) {
writer.writeAttribute("style", style, "style");
}
encodeSelectItems(context, radio, selectItems, layout);
writer.endElement("table");
}
}
protected void encodeScript(FacesContext context, SelectOneRadio radio) throws IOException {
String clientId = radio.getClientId(context);
String layout = radio.getLayout();
boolean custom = layout != null && layout.equals("custom");
WidgetBuilder wb = getWidgetBuilder(context);
wb.initWithDomReady("SelectOneRadio", radio.resolveWidgetVar(), clientId)
.attr("custom", custom, false);
encodeClientBehaviors(context, radio);
wb.finish();
}
protected void encodeSelectItems(FacesContext context, SelectOneRadio radio, List selectItems, String layout) throws IOException {
if(layout.equals("lineDirection"))
encodeLineLayout(context, radio, selectItems);
else if(layout.equals("pageDirection"))
encodePageLayout(context, radio, selectItems);
else if(layout.equals("grid"))
encodeGridLayout(context, radio, selectItems);
else
throw new FacesException("Invalid '" + layout + "' type for component '" + radio.getClientId(context) + "'.");
}
protected void encodeLineLayout(FacesContext context, SelectOneRadio radio, List selectItems) throws IOException{
ResponseWriter writer = context.getResponseWriter();
Converter converter = radio.getConverter();
String name = radio.getClientId(context);
Object value = radio.getSubmittedValue();
if(value == null) {
value = radio.getValue();
}
Class type = value == null ? String.class : value.getClass();
writer.startElement("tr", null);
int idx = 0;
for(SelectItem selectItem : selectItems) {
boolean disabled = selectItem.isDisabled() || radio.isDisabled();
String id = name + UINamingContainer.getSeparatorChar(context) + idx;
Object coercedItemValue = coerceToModelType(context, selectItem.getValue(), type);
boolean selected = (coercedItemValue != null) && coercedItemValue.equals(value);
encodeOption(context, radio, selectItem, id, name, converter, selected, disabled);
idx++;
}
writer.endElement("tr");
}
protected void encodePageLayout(FacesContext context, SelectOneRadio radio, List selectItems) throws IOException{
ResponseWriter writer = context.getResponseWriter();
Converter converter = radio.getConverter();
String name = radio.getClientId(context);
Object value = radio.getSubmittedValue();
if(value == null) {
value = radio.getValue();
}
Class type = value == null ? String.class : value.getClass();
int idx = 0;
for(SelectItem selectItem : selectItems) {
boolean disabled = selectItem.isDisabled() || radio.isDisabled();
String id = name + UINamingContainer.getSeparatorChar(context) + idx;
Object coercedItemValue = coerceToModelType(context, selectItem.getValue(), type);
boolean selected = (coercedItemValue != null) && coercedItemValue.equals(value);
writer.startElement("tr", null);
encodeOption(context, radio, selectItem, id, name, converter, selected, disabled);
writer.endElement("tr");
idx++;
}
}
protected void encodeGridLayout(FacesContext context, SelectOneRadio radio, List selectItems) throws IOException{
ResponseWriter writer = context.getResponseWriter();
Converter converter = radio.getConverter();
String name = radio.getClientId(context);
Object value = radio.getSubmittedValue();
int columns = radio.getColumns();
if(value == null) {
value = radio.getValue();
}
Class type = value == null ? String.class : value.getClass();
if(columns > 0){
int idx = 0, colMod;
for(SelectItem selectItem : selectItems) {
boolean disabled = selectItem.isDisabled() || radio.isDisabled();
String id = name + UINamingContainer.getSeparatorChar(context) + idx;
Object coercedItemValue = coerceToModelType(context, selectItem.getValue(), type);
boolean selected = (coercedItemValue != null) && coercedItemValue.equals(value);
colMod = idx % columns;
if(colMod == 0)
writer.startElement("tr", null);
encodeOption(context, radio, selectItem, id, name, converter, selected, disabled);
idx++;
colMod = idx % columns;
if(colMod == 0)
writer.endElement("tr");
}
}
else {
throw new FacesException("The value of columns attribute must be greater than zero.");
}
}
protected void encodeOption(FacesContext context, SelectOneRadio radio, SelectItem option, String id, String name, Converter converter, boolean selected, boolean disabled) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String itemValueAsString = getOptionAsString(context, radio, converter, option.getValue());
String styleClass = radio.isPlain() ? HTML.RADIOBUTTON_NATIVE_CLASS : HTML.RADIOBUTTON_CLASS;
writer.startElement("td", null);
writer.startElement("div", null);
writer.writeAttribute("class", styleClass, null);
encodeOptionInput(context, radio, id, name, selected, disabled, itemValueAsString);
encodeOptionOutput(context, radio, selected, disabled);
writer.endElement("div");
writer.endElement("td");
writer.startElement("td", null);
encodeOptionLabel(context, radio, id, option, disabled);
writer.endElement("td");
}
protected void encodeOptionInput(FacesContext context, SelectOneRadio radio, String id, String name, boolean checked, boolean disabled, String value) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("div", null);
writer.writeAttribute("class", "ui-helper-hidden-accessible", null);
writer.startElement("input", null);
writer.writeAttribute("id", id, null);
writer.writeAttribute("name", name, null);
writer.writeAttribute("type", "radio", null);
writer.writeAttribute("value", value, null);
if(radio.getTabindex() != null) writer.writeAttribute("tabindex", radio.getTabindex(), null);
if(checked) writer.writeAttribute("checked", "checked", null);
if(disabled) writer.writeAttribute("disabled", "disabled", null);
if(radio.getOnchange() != null) writer.writeAttribute("onchange", radio.getOnchange(), null);
writer.endElement("input");
writer.endElement("div");
}
protected void encodeOptionLabel(FacesContext context, SelectOneRadio radio, String containerClientId, SelectItem option, boolean disabled) throws IOException {
ResponseWriter writer = context.getResponseWriter();
writer.startElement("label", null);
writer.writeAttribute("for", containerClientId, null);
if(disabled)
writer.writeAttribute("class", "ui-state-disabled", null);
if(option.isEscape())
writer.writeText(option.getLabel(),null);
else
writer.write(option.getLabel());
writer.endElement("label");
}
protected void encodeOptionOutput(FacesContext context, SelectOneRadio radio, boolean selected, boolean disabled) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String boxClass = HTML.RADIOBUTTON_BOX_CLASS;
boxClass = selected ? boxClass + " ui-state-active" : boxClass;
boxClass = disabled ? boxClass + " ui-state-disabled" : boxClass;
boxClass = !radio.isValid() ? boxClass + " ui-state-error" : boxClass;
String iconClass = HTML.RADIOBUTTON_ICON_CLASS;
iconClass = selected ? iconClass + " " + HTML.RADIOBUTTON_CHECKED_ICON_CLASS : iconClass;
writer.startElement("div", null);
writer.writeAttribute("class", boxClass, null);
writer.startElement("span", null);
writer.writeAttribute("class", iconClass, null);
writer.endElement("span");
writer.endElement("div");
}
protected void encodeRadioButton(FacesContext context, SelectOneRadio radio, RadioButton button) throws IOException {
}
protected Class getValueType(FacesContext context, UIInput input) {
ValueExpression ve = input.getValueExpression("value");
Class type = ve == null ? String.class : ve.getType(context.getELContext());
return type == null ? String.class : type;
}
@Override
protected String getSubmitParam(FacesContext context, UISelectOne selectOne) {
return selectOne.getClientId(context);
}
@Override
public void encodeChildren(FacesContext context, UIComponent component) throws IOException {
//Do nothing
}
@Override
public boolean getRendersChildren() {
return true;
}
}
