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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.behavior.base;
import java.util.HashMap;
import java.util.Map;
import javax.el.ELContext;
import javax.el.ValueExpression;
import javax.faces.component.UIComponentBase;
import javax.faces.component.behavior.ClientBehaviorBase;
import javax.faces.context.FacesContext;
public abstract class AbstractBehavior extends ClientBehaviorBase {
protected Map literals;
protected Map bindings;
public AbstractBehavior() {
super();
int attrsCount = getAllAttributes().length;
literals = new HashMap<>(attrsCount);
bindings = new HashMap<>(attrsCount);
}
public void setLiteral(String attr, Object val) {
if (val == null && literals.containsKey(attr)) {
literals.remove(attr);
}
else {
literals.put(attr, val);
}
}
public void setLiteral(Enum property, Object val) {
String attr = property.name();
setLiteral(attr, val);
}
public void setValueExpression(String attr, ValueExpression ve) {
if (ve == null && bindings.containsKey(attr)) {
bindings.remove(attr);
}
else {
bindings.put(attr, ve);
}
}
public void setValueExpression(Enum property, ValueExpression ve) {
String attr = property.name();
setValueExpression(attr, ve);
}
public T eval(String attr, T unspecifiedValue) {
if (literals.containsKey(attr)) {
Object val = literals.get(attr);
if (val == null) {
return unspecifiedValue;
}
else {
return (T) val;
}
}
ValueExpression ve = bindings.get(attr);
if (ve != null) {
FacesContext facesContext = FacesContext.getCurrentInstance();
ELContext elContext = facesContext.getELContext();
return (T) ve.getValue(elContext);
}
return unspecifiedValue;
}
protected T eval(Enum property, T unspecifiedValue) {
return eval(property.name(), unspecifiedValue);
}
public void put(String name, Object value) {
setLiteral(name, value);
}
public void put(Enum property, Object value) {
setLiteral(property.name(), value);
}
protected boolean isAttributeSet(String attr) {
return literals.containsKey(attr) || bindings.containsKey(attr);
}
protected boolean isAttributeSet(Enum property) {
String attr = property.name();
return isAttributeSet(attr);
}
@Override
public Object saveState(FacesContext context) {
if (context == null) {
throw new NullPointerException();
}
Object[] values;
Object superState = super.saveState(context);
if (initialStateMarked()) {
if (superState == null) {
values = null;
}
else {
values = new Object[]{superState};
}
}
else {
values = new Object[3];
values[0] = superState;
values[1] = savePropertyMap(context, literals, false);
values[2] = savePropertyMap(context, bindings, true);
}
return values;
}
@Override
public void restoreState(FacesContext context, Object state) {
if (context == null) {
throw new NullPointerException();
}
if (state != null) {
Object[] values = (Object[]) state;
super.restoreState(context, values[0]);
if (values.length != 1) {
literals = restorePropertyMap(context, (Object[]) values[1], false);
bindings = restorePropertyMap(context, (Object[]) values[2], true);
// If we saved state last time, save state again next time.
clearInitialState();
}
}
}
protected Object[] savePropertyMap(FacesContext context, Map map, boolean saveValuesAsAttachedState) {
if (map == null) {
return null;
}
BehaviorAttribute[] attributes = getAllAttributes();
Object[] values = new Object[attributes.length];
for (int i = 0; i < attributes.length; i++) {
Object val = map.get(attributes[i].getName());
if (saveValuesAsAttachedState) {
val = UIComponentBase.saveAttachedState(context, val);
}
if (val != null) {
values[i] = val;
}
}
return values;
}
protected Map restorePropertyMap(FacesContext context, Object[] values, boolean restoreValuesFromAttachedState) {
if (values == null) {
return null;
}
BehaviorAttribute[] attributes = getAllAttributes();
Map map = new HashMap<>(attributes.length);
for (int i = 0; i < attributes.length; i++) {
Object val = values[i];
if (restoreValuesFromAttachedState) {
val = UIComponentBase.restoreAttachedState(context, val);
}
if (val != null) {
map.put(attributes[i].getName(), val);
}
}
return map;
}
protected abstract BehaviorAttribute[] getAllAttributes();
}
