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// SelectManyCheckboxListRenderer.java
package com.sun.faces.renderkit.html_basic;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.component.ValueHolder;
import javax.faces.component.UINamingContainer;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.convert.Converter;
import javax.faces.model.SelectItem;
import javax.faces.model.SelectItemGroup;
import com.sun.faces.renderkit.Attribute;
import com.sun.faces.renderkit.AttributeManager;
import com.sun.faces.renderkit.RenderKitUtils;
import com.sun.faces.util.Util;
import com.sun.faces.util.RequestStateManager;
/**
* SelectManyCheckboxListRenderer is a class that renders the
* current value of UISelectMany component as a list of checkboxes.
*/
public class SelectManyCheckboxListRenderer extends MenuRenderer {
private static final Attribute[] ATTRIBUTES =
AttributeManager.getAttributes(AttributeManager.Key.SELECTMANYCHECKBOX);
// ---------------------------------------------------------- Public Methods
@Override
public void encodeEnd(FacesContext context, UIComponent component)
throws IOException {
rendererParamsNotNull(context, component);
if (!shouldEncode(component)) {
return;
}
ResponseWriter writer = context.getResponseWriter();
assert(writer != null);
String alignStr;
Object borderObj;
boolean alignVertical = false;
int border = 0;
if (null !=
(alignStr = (String) component.getAttributes().get("layout"))) {
alignVertical = alignStr.equalsIgnoreCase("pageDirection");
}
if (null != (borderObj = component.getAttributes().get("border"))) {
border = (Integer) borderObj;
}
Converter converter = null;
if(component instanceof ValueHolder) {
converter = ((ValueHolder)component).getConverter();
}
renderBeginText(component, border, alignVertical, context, true);
Iterator items =
RenderKitUtils.getSelectItems(context, component);
Object currentSelections = getCurrentSelectedValues(component);
Object[] submittedValues = getSubmittedSelectedValues(component);
Map attributes = component.getAttributes();
OptionComponentInfo optionInfo =
new OptionComponentInfo((String) attributes.get("disabledClass"),
(String) attributes.get("enabledClass"),
(String) attributes.get("unselectedClass"),
(String) attributes.get("selectedClass"),
Util.componentIsDisabled(component),
isHideNoSelection(component));
int idx = -1;
while (items.hasNext()) {
SelectItem curItem = items.next();
idx++;
// If we come across a group of options, render them as a nested
// table.
if (curItem instanceof SelectItemGroup) {
// write out the label for the group.
if (curItem.getLabel() != null) {
if (alignVertical) {
writer.startElement("tr", component);
}
writer.startElement("td", component);
writer.writeText(curItem.getLabel(), component, "label");
writer.endElement("td");
if (alignVertical) {
writer.endElement("tr");
}
}
if (alignVertical) {
writer.startElement("tr", component);
}
writer.startElement("td", component);
writer.writeText("\n", component, null);
renderBeginText(component, 0, alignVertical,
context, false);
// render options of this group.
SelectItem[] itemsArray =
((SelectItemGroup) curItem).getSelectItems();
for (int i = 0; i < itemsArray.length; ++i) {
renderOption(context,
component,
converter,
itemsArray[i],
currentSelections,
submittedValues,
alignVertical,
i,
optionInfo);
}
renderEndText(component, alignVertical, context);
writer.endElement("td");
if (alignVertical) {
writer.endElement("tr");
writer.writeText("\n", component, null);
}
} else {
renderOption(context,
component,
converter,
curItem,
currentSelections,
submittedValues,
alignVertical,
idx,
optionInfo);
}
}
renderEndText(component, alignVertical, context);
}
// ------------------------------------------------------- Protected Methods
/**
* We override isBehaviorSource since the ID of the activated check box
* will have been augmented with the option number.
*
* @see HtmlBasicRenderer#isBehaviorSource(FacesContext, String, String)
*/
@Override
protected boolean isBehaviorSource(FacesContext ctx,
String behaviorSourceId,
String componentClientId) {
if (behaviorSourceId == null) {
return false;
}
char sepChar = UINamingContainer.getSeparatorChar(ctx);
String actualBehaviorId =
behaviorSourceId.substring(0, behaviorSourceId.lastIndexOf(sepChar));
return (actualBehaviorId.equals(componentClientId));
}
protected void renderBeginText(UIComponent component, int border,
boolean alignVertical, FacesContext context,
boolean outerTable)
throws IOException {
ResponseWriter writer = context.getResponseWriter();
assert(writer != null);
writer.startElement("table", component);
if (border != Integer.MIN_VALUE) {
writer.writeAttribute("border", border, "border");
}
// render style and styleclass attribute on the outer table instead of
// rendering it as pass through attribute on every option in the list.
if (outerTable) {
// render "id" only for outerTable.
if (shouldWriteIdAttribute(component)) {
writeIdAttributeIfNecessary(context, writer, component);
}
String styleClass = (String) component.getAttributes().get(
"styleClass");
String style = (String) component.getAttributes().get("style");
if (styleClass != null) {
writer.writeAttribute("class", styleClass, "class");
}
if (style != null) {
writer.writeAttribute("style", style, "style");
}
}
writer.writeText("\n", component, null);
if (!alignVertical) {
writer.writeText("\t", component, null);
writer.startElement("tr", component);
writer.writeText("\n", component, null);
}
}
protected void renderEndText(UIComponent component,
boolean alignVertical,
FacesContext context)
throws IOException {
ResponseWriter writer = context.getResponseWriter();
assert(writer != null);
if (!alignVertical) {
writer.writeText("\t", component, null);
writer.endElement("tr");
writer.writeText("\n", component, null);
}
writer.endElement("table");
}
protected void renderOption(FacesContext context,
UIComponent component,
Converter converter,
SelectItem curItem,
Object currentSelections,
Object[] submittedValues,
boolean alignVertical,
int itemNumber,
OptionComponentInfo optionInfo) throws IOException {
String valueString = getFormattedValue(context, component,
curItem.getValue(), converter);
Object valuesArray;
Object itemValue;
if (submittedValues != null) {
valuesArray = submittedValues;
itemValue = valueString;
} else {
valuesArray = currentSelections;
itemValue = curItem.getValue();
}
RequestStateManager.set(context,
RequestStateManager.TARGET_COMPONENT_ATTRIBUTE_NAME,
component);
boolean isSelected = isSelected(context, component, itemValue, valuesArray, converter);
if (optionInfo.isHideNoSelection()
&& curItem.isNoSelectionOption()
&& currentSelections != null
&& !isSelected) {
return;
}
ResponseWriter writer = context.getResponseWriter();
assert (writer != null);
if (alignVertical) {
writer.writeText("\t", component, null);
writer.startElement("tr", component);
writer.writeText("\n", component, null);
}
writer.startElement("td", component);
writer.writeText("\n", component, null);
writer.startElement("input", component);
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", valueString, "value");
writer.writeAttribute("type", "checkbox", null);
if (isSelected) {
writer.writeAttribute(getSelectedTextString(), Boolean.TRUE, null);
}
// 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, true);
writer.endElement("input");
writer.startElement("label", component);
writer.writeAttribute("for", idString, "for");
// Set up the label's class, if appropriate
StringBuilder labelClass = new StringBuilder();
String style;
// If disabledClass or enabledClass set, add it to the label's class
if (optionInfo.isDisabled() || curItem.isDisabled()) {
style = optionInfo.getDisabledClass();
} else { // enabled
style = optionInfo.getEnabledClass();
}
if (style != null) {
labelClass.append(style);
}
// If selectedClass or unselectedClass set, add it to the label's class
if (isSelected(context, component, itemValue, valuesArray, converter)) {
style = optionInfo.getSelectedClass();
} else { // not selected
style = optionInfo.getUnselectedClass();
}
if (style != null) {
if (labelClass.length() > 0) {
labelClass.append(' ');
}
labelClass.append(style);
}
writer.writeAttribute("class", labelClass.toString(), "labelClass");
String itemLabel = curItem.getLabel();
if (itemLabel == null) {
itemLabel = valueString;
}
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");
}
if (isSelected(context, component, itemValue, valuesArray, converter)) {
} else { // not selected
}
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);
}
}
// ------------------------------------------------- Package Private Methods
String getSelectedTextString() {
return "checked";
}
} // end of class SelectManyCheckboxListRenderer
