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/*
* The MIT License
*
* Copyright (c) 2009-2023 PrimeTek Informatics
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.primefaces.renderkit;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import javax.faces.component.UIComponent;
import javax.faces.component.UISelectOne;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.model.SelectItem;
import javax.faces.model.SelectItemGroup;
public abstract class SelectOneRenderer extends SelectRenderer {
@Override
public void decode(FacesContext context, UIComponent component) {
UISelectOne selectOne = (UISelectOne) component;
if (!shouldDecode(selectOne)) {
return;
}
String clientId = getSubmitParam(context, selectOne);
Map params = context.getExternalContext().getRequestParameterMap();
String submittedValue = params.containsKey(clientId) ? params.get(clientId) : "";
List validSubmittedValues = validateSubmittedValues(context, selectOne, (Object[]) getValues(selectOne), submittedValue);
selectOne.setSubmittedValue(validSubmittedValues.isEmpty() || validSubmittedValues.contains(submittedValue)
? submittedValue
: validSubmittedValues.get(0));
decodeBehaviors(context, selectOne);
}
protected Object getValues(UISelectOne selectOne) {
Object value = selectOne.getValue();
if (value != null) {
return new Object[]{value};
}
return null;
}
protected Object getSubmittedValues(UIComponent component) {
UISelectOne select = (UISelectOne) component;
Object val = select.getSubmittedValue();
if (val != null) {
return new Object[]{val};
}
return null;
}
/**
* Recursive method used to find a SelectItem by its label.
* @param fc FacesContext
* @param component the current UI component to find value for
* @param converter the converter for the select items
* @param selectItems the List of SelectItems
* @param valueOrLabel the input value/label to search for
* @return either the SelectItem found or NULL if not found
*/
protected SelectItem findSelectItemByLabel(FacesContext fc, UIComponent component, Converter converter, List selectItems,
String valueOrLabel) {
return findSelectItem(fc, component, converter, selectItems, valueOrLabel, false);
}
/**
* Recursive method used to find a SelectItem by its value.
* @param fc FacesContext
* @param component the current UI component to find value for
* @param converter the converter for the select items
* @param selectItems the List of SelectItems
* @param valueOrLabel the input value/label to search for
* @return either the SelectItem found or NULL if not found
*/
protected SelectItem findSelectItemByValue(FacesContext fc, UIComponent component, Converter converter, List selectItems,
String valueOrLabel) {
return findSelectItem(fc, component, converter, selectItems, valueOrLabel, true);
}
/**
* Recursive method used to find a SelectItem by its value or label.
* @param fc FacesContext
* @param component the current UI component to find value for
* @param converter the converter for the select items
* @param selectItems the List of SelectItems
* @param valueOrLabel the input value/label to search for
* @param byValue true if searching by value false if by label
* @return either the SelectItem found or NULL if not found
*/
private SelectItem findSelectItem(FacesContext fc, UIComponent component, Converter converter, List selectItems,
String valueOrLabel, boolean byValue) {
for (int i = 0; i < selectItems.size(); i++) {
SelectItem item = selectItems.get(i);
if (item instanceof SelectItemGroup) {
SelectItemGroup selectItemGroup = (SelectItemGroup) item;
if (selectItemGroup.getSelectItems() != null) {
SelectItem foundValue = findSelectItem(fc, component, converter,
Arrays.asList(selectItemGroup.getSelectItems()), valueOrLabel, byValue);
if (foundValue != null) {
return foundValue;
}
}
}
else {
String itemString;
if (byValue) {
itemString = getOptionAsString(fc, component, converter, item.getValue());
}
else {
itemString = item.getLabel();
}
if (Objects.equals(valueOrLabel, itemString)) {
return item;
}
}
}
return null;
}
protected abstract String getSubmitParam(FacesContext context, UISelectOne selectOne);
}
