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// RadioRenderer.java
package com.sun.faces.renderkit.html_basic;
import com.sun.faces.renderkit.Attribute;
import com.sun.faces.renderkit.AttributeManager;
import com.sun.faces.renderkit.RenderKitUtils;
import com.sun.faces.util.RequestStateManager;
import javax.el.ELException;
import javax.faces.component.UIComponent;
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.model.SelectItem;
import java.util.Collection;
import java.util.Iterator;
import java.io.IOException;
/**
* ReadoRenderer is a class that renders the current value of
* UISelectOne or UISelectMany component as a list of
* radio buttons
*/
public class RadioRenderer extends SelectManyCheckboxListRenderer {
private static final Attribute[] ATTRIBUTES =
AttributeManager.getAttributes(AttributeManager.Key.SELECTONERADIO);
// ------------------------------------------------------- Protected Methods
@Override
protected void renderOption(FacesContext context,
UIComponent component,
Converter converter,
SelectItem curItem,
Object currentSelections,
Object[] submittedValues,
boolean alignVertical,
int itemNumber,
OptionComponentInfo optionInfo) throws IOException {
ResponseWriter writer = context.getResponseWriter();
assert (writer != null);
UISelectOne selectOne = (UISelectOne) component;
Object curValue = selectOne.getSubmittedValue();
if (curValue == null) {
curValue = selectOne.getValue();
}
Class type = String.class;
if (curValue != null) {
type = curValue.getClass();
if (type.isArray()) {
curValue = ((Object[]) curValue)[0];
if (null != curValue) {
type = curValue.getClass();
}
} else if (Collection.class.isAssignableFrom(type)) {
Iterator valueIter = ((Collection) curValue).iterator();
if (null != valueIter && valueIter.hasNext()) {
curValue = valueIter.next();
if (null != curValue) {
type = curValue.getClass();
}
}
}
}
Object itemValue = curItem.getValue();
RequestStateManager.set(context,
RequestStateManager.TARGET_COMPONENT_ATTRIBUTE_NAME,
component);
Object newValue;
try {
newValue = context.getApplication().getExpressionFactory().
coerceToType(itemValue, type);
} catch (ELException ele) {
newValue = itemValue;
} catch (IllegalArgumentException iae) {
// If coerceToType fails, per the docs it should throw
// an ELException, however, GF 9.0 and 9.0u1 will throw
// an IllegalArgumentException instead (see GF issue 1527).
newValue = itemValue;
}
boolean checked = null != newValue && newValue.equals(curValue);
if (optionInfo.isHideNoSelection()
&& curItem.isNoSelectionOption()
&& curValue != null
&& !checked) {
return;
}
if (alignVertical) {
writer.writeText("\t", component, null);
writer.startElement("tr", component);
writer.writeText("\n", component, null);
}
String labelClass;
if (optionInfo.isDisabled() || curItem.isDisabled()) {
labelClass = optionInfo.getDisabledClass();
} else {
labelClass = optionInfo.getEnabledClass();
}
writer.startElement("td", component);
writer.writeText("\n", component, null);
writer.startElement("input", component);
writer.writeAttribute("type", "radio", "type");
if (checked) {
writer.writeAttribute("checked", Boolean.TRUE, null);
}
writer.writeAttribute("name", component.getClientId(context),
"clientId");
String idString = component.getClientId(context)
+ UINamingContainer.getSeparatorChar(context)
+ Integer.toString(itemNumber);
writer.writeAttribute("id", idString, "id");
writer.writeAttribute("value",
(getFormattedValue(context, component,
curItem.getValue(), converter)),
"value");
// Don't render the disabled attribute twice if the 'parent'
// component is already marked disabled.
if (!optionInfo.isDisabled()) {
if (curItem.isDisabled()) {
writer.writeAttribute("disabled", true, "disabled");
}
}
// Apply HTML 4.x attributes specified on UISelectMany component to all
// items in the list except styleClass and style which are rendered as
// attributes of outer most table.
RenderKitUtils.renderPassThruAttributes(context,
writer,
component,
ATTRIBUTES,
getNonOnClickSelectBehaviors(component));
RenderKitUtils.renderXHTMLStyleBooleanAttributes(writer,
component);
RenderKitUtils.renderSelectOnclick(context, component, false);
writer.endElement("input");
writer.startElement("label", component);
writer.writeAttribute("for", idString, "for");
// if enabledClass or disabledClass attributes are specified, apply
// it on the label.
if (labelClass != null) {
writer.writeAttribute("class", labelClass, "labelClass");
}
String itemLabel = curItem.getLabel();
if (itemLabel != null) {
writer.writeText(" ", component, null);
if (!curItem.isEscape()) {
// It seems the ResponseWriter API should
// have a writeText() with a boolean property
// to determine if it content written should
// be escaped or not.
writer.write(itemLabel);
} else {
writer.writeText(itemLabel, component, "label");
}
}
writer.endElement("label");
writer.endElement("td");
writer.writeText("\n", component, null);
if (alignVertical) {
writer.writeText("\t", component, null);
writer.endElement("tr");
writer.writeText("\n", component, null);
}
}
} // end of class RadioRenderer
