/*
* Copyright 2004 The Apache Software Foundation.
*
* 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.nuxeo.ecm.platform.ui.web.component;
import java.util.Locale;
import java.util.Map;
import javax.el.ValueExpression;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import org.apache.commons.lang.StringUtils;
import org.nuxeo.common.utils.i18n.I18NUtils;
import org.nuxeo.ecm.platform.ui.web.util.ComponentTagUtils;
/**
* EasySelectItem from
* http://jsf-comp.sourceforge.net/components/easysi/index.html, adapted to
* work with single select item.
*
* @author Cagatay-Mert
* @author <a href="mailto:at@nuxeo.com">Anahide Tchertchian</a>
*/
public class UISelectItem extends javax.faces.component.UISelectItem {
public static final String COMPONENT_TYPE = UISelectItem.class.getName();
enum PropertyKeys {
var, itemRendered, itemLabels, resolveItemLabelTwice,
//
localize, dbl10n;
}
public String getVar() {
return (String) getStateHelper().eval(PropertyKeys.var);
}
public void setVar(String var) {
getStateHelper().put(PropertyKeys.var, var);
}
@SuppressWarnings("boxing")
public boolean isItemRendered() {
return (Boolean) getStateHelper().eval(PropertyKeys.itemRendered, false);
}
@SuppressWarnings("boxing")
public void setItemRendered(boolean itemRendered) {
getStateHelper().put(PropertyKeys.itemRendered, itemRendered);
}
public boolean isResolveItemLabelTwice() {
return Boolean.TRUE.equals(getStateHelper().eval(
PropertyKeys.resolveItemLabelTwice, Boolean.FALSE));
}
@SuppressWarnings("boxing")
public void setResolveItemLabelTwice(boolean resolveItemLabelTwice) {
getStateHelper().put(PropertyKeys.resolveItemLabelTwice,
resolveItemLabelTwice);
}
@SuppressWarnings("unchecked")
public Map<String, String> getItemLabels() {
return (Map<String, String>) getStateHelper().eval(
PropertyKeys.itemLabels);
}
public void setItemLabels(Map<String, String> itemLabels) {
getStateHelper().put(PropertyKeys.itemLabels, itemLabels);
}
@SuppressWarnings("boxing")
public boolean isLocalize() {
return (Boolean) getStateHelper().eval(PropertyKeys.localize,
Boolean.FALSE);
}
@SuppressWarnings("boxing")
public void setLocalize(boolean localize) {
getStateHelper().put(PropertyKeys.localize, localize);
}
@SuppressWarnings("boxing")
public boolean isdbl10n() {
return (Boolean) getStateHelper().eval(PropertyKeys.dbl10n,
Boolean.FALSE);
}
@SuppressWarnings("boxing")
public void setdbl10n(boolean dbl10n) {
getStateHelper().put(PropertyKeys.dbl10n, dbl10n);
}
@Override
public Object getValue() {
Object value = super.getValue();
return new SelectItemFactory() {
@Override
protected String getVar() {
return UISelectItem.this.getVar();
}
@Override
protected SelectItem createSelectItem() {
return UISelectItem.this.createSelectItem();
}
}.createSelectItem(value);
}
protected String translate(FacesContext context, Locale locale, String label) {
if (StringUtils.isBlank(label)) {
return label;
}
String bundleName = context.getApplication().getMessageBundle();
label = I18NUtils.getMessageString(bundleName, label, null, locale);
return label;
}
protected String retrieveItemLabel() {
FacesContext ctx = FacesContext.getCurrentInstance();
Locale locale = ctx.getViewRoot().getLocale();
String label = null;
if (isdbl10n()) {
Map<String, String> labels = getItemLabels();
if (labels != null) {
if (labels.containsKey(locale.getLanguage())) {
label = labels.get(locale.getLanguage());
} else {
// fallback on en
label = labels.get("en");
}
}
}
if (StringUtils.isBlank(label)) {
Object labelObject = getItemLabel();
label = labelObject != null ? labelObject.toString() : null;
}
if (isResolveItemLabelTwice()
&& ComponentTagUtils.isValueReference(label)) {
ValueExpression ve = ctx.getApplication().getExpressionFactory().createValueExpression(
ctx.getELContext(), label, Object.class);
if (ve != null) {
Object newLabel = ve.getValue(ctx.getELContext());
if (newLabel instanceof String) {
label = (String) newLabel;
}
}
}
if (isLocalize()) {
label = translate(ctx, locale, label);
}
return label;
}
protected SelectItem createSelectItem() {
if (!isItemRendered()) {
return null;
}
Object value = getItemValue();
Object labelObject = getItemLabel();
String label = labelObject != null ? labelObject.toString() : null;
// make sure label is never blank
if (StringUtils.isBlank(label)) {
label = String.valueOf(value);
}
return new SelectItem(value, label, null, isItemDisabled(),
isItemEscaped());
}
}