/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* Portions Copyright (c) 2000 Apple Computer, Inc. All Rights
* Reserved. This file contains Original Code and/or Modifications of
* Original Code as defined in and that are subject to the Apple Public
* Source License Version 1.1 (the "License"). You may not use this file
* except in compliance with the License. Please obtain a copy of the
* License at http://www.apple.com/publicsource and read it before using
* this file.
*
* The Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
package er.extensions.woextensions;
import java.util.Enumeration;
import com.webobjects.appserver.WOComponent;
import com.webobjects.appserver.WOContext;
import com.webobjects.appserver.WODisplayGroup;
import com.webobjects.eocontrol.EOSortOrdering;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSMutableArray;
import com.webobjects.foundation.NSSelector;
import er.extensions.components.ERXStatelessComponent;
/**
* Almost direct port of WOSortOrder from WO 5's WOExtensions<br />
* @binding caseInsensitive is ordering case sensitive or not
*/
public class WOSortOrder extends ERXStatelessComponent {
/**
* Do I need to update serialVersionUID?
* See section 5.6 <cite>Type Changes Affecting Serialization</cite> on page 51 of the
* <a href="http://java.sun.com/j2se/1.4/pdf/serial-spec.pdf">Java Object Serialization Spec</a>
*/
private static final long serialVersionUID = 1L;
public WOSortOrder(WOContext aContext) {
super(aContext);
}
@Override
public void reset() {
_invalidateCaches();
}
public WODisplayGroup displayGroup() {
if (null == _displayGroup)
_displayGroup = (WODisplayGroup)valueForBinding("displayGroup");
return _displayGroup;
}
public String key() {
if (null == _key)
_key = (String)valueForBinding("key");
return _key;
}
public String displayKey() {
if (null == _displayKey)
_displayKey = (String)valueForBinding("displayKey");
return _displayKey;
}
private EOSortOrdering _primarySortOrdering() {
NSArray nsarray = displayGroup().sortOrderings();
if (nsarray != null && nsarray.count() > 0) {
EOSortOrdering eosortordering = (EOSortOrdering)nsarray.objectAtIndex(0);
return eosortordering;
}
return null;
}
private boolean _isCurrentKeyPrimary() {
EOSortOrdering eosortordering = _primarySortOrdering();
return eosortordering != null && eosortordering.key().equals(key());
}
private NSSelector _primaryKeySortOrderingSelector()
{
EOSortOrdering eosortordering = _primarySortOrdering();
NSSelector nsselector = null;
if(eosortordering != null)
nsselector = eosortordering.selector();
return nsselector;
}
public String imageName()
{
String s = "Unsorted.gif";
if(_isCurrentKeyPrimary())
{
NSSelector nsselector = _primaryKeySortOrderingSelector();
if(nsselector.equals(EOSortOrdering.CompareAscending)
|| nsselector.equals(EOSortOrdering.CompareCaseInsensitiveAscending)) {
s = "Ascending.gif";
} else if(nsselector.equals(EOSortOrdering.CompareDescending)
|| nsselector.equals(EOSortOrdering.CompareCaseInsensitiveDescending)) {
s = "Descending.gif";
}
}
return s;
}
private void _removeSortOrderingWithKey(String s)
{
int i = 0;
WODisplayGroup wodisplaygroup = displayGroup();
NSArray nsarray = wodisplaygroup.sortOrderings();
if(nsarray != null)
{
NSMutableArray nsmutablearray = new NSMutableArray(nsarray); //.mutableClone();
for(Enumeration enumeration = nsmutablearray.objectEnumerator(); enumeration.hasMoreElements(); i++)
{
EOSortOrdering eosortordering = (EOSortOrdering)enumeration.nextElement();
if(!s.equals(eosortordering.key()))
continue;
nsmutablearray.removeObjectAtIndex(i);
break;
}
wodisplaygroup.setSortOrderings(nsmutablearray);
}
}
private void _makePrimarySortOrderingWithSelector(NSSelector nsselector)
{
String s = key();
WODisplayGroup wodisplaygroup = displayGroup();
NSArray nsarray = wodisplaygroup.sortOrderings();
NSMutableArray nsmutablearray;
if(nsarray != null)
nsmutablearray = new NSMutableArray(nsarray);
else
nsmutablearray = new NSMutableArray();
EOSortOrdering eosortordering = EOSortOrdering.sortOrderingWithKey(s, nsselector);
nsmutablearray.insertObjectAtIndex(eosortordering, 0);
if(nsmutablearray.count() > 3)
nsmutablearray.removeLastObject();
wodisplaygroup.setSortOrderings(nsmutablearray);
}
public String helpString()
{
return "Push to toggle sorting order according to " + displayKey();
}
public WOComponent toggleClicked()
{
String s = key();
boolean caseInsensitive = caseInsensitive();
NSSelector asc = caseInsensitive ? EOSortOrdering.CompareCaseInsensitiveAscending : EOSortOrdering.CompareAscending;
NSSelector desc = caseInsensitive ? EOSortOrdering.CompareCaseInsensitiveDescending : EOSortOrdering.CompareDescending;
if(_isCurrentKeyPrimary())
{
NSSelector nsselector = _primaryKeySortOrderingSelector();
if(nsselector.equals(EOSortOrdering.CompareAscending)
|| nsselector.equals(EOSortOrdering.CompareCaseInsensitiveAscending)) {
_removeSortOrderingWithKey(s);
_makePrimarySortOrderingWithSelector(desc);
} else if (nsselector.equals(EOSortOrdering.CompareDescending)
|| nsselector.equals(EOSortOrdering.CompareCaseInsensitiveDescending)) {
_removeSortOrderingWithKey(s);
_makePrimarySortOrderingWithSelector(asc);
} else {
_removeSortOrderingWithKey(s);
_makePrimarySortOrderingWithSelector(asc);
}
} else {
_removeSortOrderingWithKey(s);
_makePrimarySortOrderingWithSelector(asc);
}
displayGroup().updateDisplayedObjects();
return null;
}
public boolean caseInsensitive() {
return booleanValueForBinding("caseInsensitive");
}
private void _invalidateCaches()
{
_key = null;
_displayKey = null;
_displayGroup = null;
}
private String _key;
private String _displayKey;
WODisplayGroup _displayGroup;
}