zul/src/main/java/org/zkoss/zul/Listheader.java
/* Listheader.java
Purpose:
Description:
History:
Fri Aug 5 13:06:59 2005, Created by tomyeh
Copyright (C) 2005 Potix Corporation. All Rights Reserved.
{{IS_RIGHT
This program is distributed under LGPL Version 2.1 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.zul;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.zkoss.lang.Classes;
import org.zkoss.lang.Objects;
import org.zkoss.lang.Strings;
import org.zkoss.mesg.Messages;
import org.zkoss.zk.au.AuRequests;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.Components;
import org.zkoss.zk.ui.Page;
import org.zkoss.zk.ui.UiException;
import org.zkoss.zk.ui.WrongValueException;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zk.ui.event.SortEvent;
import org.zkoss.zk.ui.ext.Scopes;
import org.zkoss.zul.ext.GroupsSortableModel;
import org.zkoss.zul.ext.Sortable;
import org.zkoss.zul.impl.HeaderElement;
import org.zkoss.zul.mesg.MZul;
/**
* The list header which defines the attributes and header of a column
* of a list box.
* Its parent must be {@link Listhead}.
*
* <p>Difference from XUL:
* <ol>
* <li>There is no listcol in ZUL because it is merged into {@link Listheader}.
* Reason: easier to write Listbox.</li>
* </ol>
* <p>Default {@link #getZclass}: z-listheader.(since 5.0.0)
* @author tomyeh
*/
public class Listheader extends HeaderElement {
private static final long serialVersionUID = 20080218L;
private String _sortDir = "natural";
private transient Comparator _sortAsc, _sortDsc;
private String _sortAscNm = "none";
private String _sortDscNm = "none";
private Object _value;
private int _maxlength;
private boolean _ignoreSort = false;
private boolean _isCustomAscComparator = false;
private boolean _isCustomDscComparator = false;
static {
addClientEvent(Listheader.class, Events.ON_SORT, CE_DUPLICATE_IGNORE);
addClientEvent(Listheader.class, Events.ON_GROUP, CE_DUPLICATE_IGNORE);
addClientEvent(Listheader.class, Events.ON_UNGROUP, CE_DUPLICATE_IGNORE);
}
public Listheader() {
}
public Listheader(String label) {
super(label);
}
/* Constructs a list header with label and image.
*
* @param src the URI of the image. Ignored if null or empty.
*/
public Listheader(String label, String src) {
super(label, src);
}
/* Constructs a list header with label, image and width.
*
* @param src the URI of the image. Ignored if null or empty.
* @param width the width of the column. Ignored if null or empty.
* @since 3.0.4
*/
public Listheader(String label, String src, String width) {
super(label, src);
setWidth(width);
}
/** Returns the listbox that this belongs to.
*/
public Listbox getListbox() {
final Component comp = getParent();
return comp != null ? (Listbox) comp.getParent() : null;
}
/** Returns the value.
* <p>Default: null.
* <p>Note: the value is application dependent, you can place
* whatever value you want.
* @since 3.6.0
*/
@SuppressWarnings("unchecked")
public <T> T getValue() {
return (T) _value;
}
/** Sets the value.
* @param value the value.
* <p>Note: the value is application dependent, you can place
* whatever value you want.
* @since 3.6.0
*/
public <T> void setValue(T value) {
_value = value;
}
/** Returns the sort direction.
* <p>Default: "natural".
*/
public String getSortDirection() {
return _sortDir;
}
/** Sets the sort direction. This does not sort the data, it only serves
* as an indicator as to how the list is sorted. (unless the listbox has "autosort" attribute)
*
* <p>If you use {@link #sort(boolean)} to sort list items,
* the sort direction is maintained automatically.
* If you want to sort it in customized way, you have to set the
* sort direction manually.
*
* @param sortDir one of "ascending", "descending" and "natural"
*/
public void setSortDirection(String sortDir) throws WrongValueException {
if (sortDir == null
|| (!"ascending".equals(sortDir) && !"descending".equals(sortDir) && !"natural".equals(sortDir)))
throw new WrongValueException("Unknown sort direction: " + sortDir);
if (!Objects.equals(_sortDir, sortDir)) {
_sortDir = sortDir;
if (!"natural".equals(sortDir) && !_ignoreSort) {
Listbox listbox = getListbox();
if (listbox != null && listbox.isAutosort()) {
doSort("ascending".equals(sortDir));
}
}
smartUpdate("sortDirection", _sortDir); //don't use null because sel.js assumes it
}
}
/** Sets the type of the sorter.
* You might specify either "auto", "auto(FIELD_NAME1[,FIELD_NAME2] ...)"(since 3.5.3),
* "auto(<i>number</i>)" (since 5.0.6) or "none".
*
* <p>If "client" or "client(number)" is specified,
* the sort functionality will be done by Javascript at client without notifying
* to server, that is, the order of the component in the row is out of sync.
* <ul>
* <li> "client" : it is treated by a string</li>
* <li> "client(number)" : it is treated by a number</li>
* </ul>
* <p>Note: client sorting cannot work in model case. (since 5.0.0)
*
* <p>If "auto" is specified,
* {@link #setSortAscending} and/or {@link #setSortDescending}
* are called with {@link ListitemComparator}, if
* {@link #getSortDescending} and/or {@link #getSortAscending} are null.
* If you assigned a comparator to them, it won't be affected.
* The auto created comparator is case-insensitive.
*
* <p>If "auto(FIELD_NAME1, FIELD_NAME2, ...)" is specified,
* {@link #setSortAscending} and/or {@link #setSortDescending}
* are called with {@link FieldComparator}, if
* {@link #getSortDescending} and/or {@link #getSortAscending} are null.
* If you assigned a comparator to them, it won't be affected.
* The auto created comparator is case-sensitive.
*
* <p>If "auto(LOWER(FIELD_NAME))" or "auto(UPPER(FIELD_NAME))" is specified,
* {@link #setSortAscending} and/or {@link #setSortDescending}
* are called with {@link FieldComparator}, if
* {@link #getSortDescending} and/or {@link #getSortAscending} are null.
* If you assigned a comparator to them, it won't be affected.
* The auto created comparator is case-insensitive.
*
* <p>If "auto(<i>number</i>)" is specified,
* {@link #setSortAscending} and/or {@link #setSortDescending}
* are called with {@link ArrayComparator}. Notice that the data must
* be an array and the number-th element must be comparable ({@link Comparable}).
*
* <p>If "none" is specified, both {@link #setSortAscending} and
* {@link #setSortDescending} are called with null.
* Therefore, no more sorting is available to users for this column.
*/
public void setSort(String type) {
if (type == null)
return;
if (type.startsWith("client")) {
try {
setSortAscending(type);
setSortDescending(type);
} catch (Throwable ex) {
throw UiException.Aide.wrap(ex); //not possible to throw ClassNotFoundException...
}
} else if ("auto".equals(type)) {
if (getSortAscending() == null)
setSortAscending(new ListitemComparator(this, true, true));
if (getSortDescending() == null)
setSortDescending(new ListitemComparator(this, false, true));
} else if (!Strings.isBlank(type) && type.startsWith("auto")) {
final int j = type.indexOf('(');
final int k = type.lastIndexOf(')');
if (j >= 0 && k >= 0) {
final String name = type.substring(j + 1, k);
char cc;
int index = -1;
if (name.length() > 0 && (cc = name.charAt(0)) >= '0' && cc <= '9')
if ((index = Integer.parseInt(name)) < 0)
throw new IllegalArgumentException("Nonnegative number is required: " + name);
if (getSortAscending() == null || !_isCustomAscComparator) {
if (index < 0)
setSortAscending(new FieldComparator(name, true));
else
setSortAscending(new ArrayComparator(index, true));
_isCustomAscComparator = false;
}
if (getSortDescending() == null || !_isCustomDscComparator) {
if (index < 0)
setSortDescending(new FieldComparator(name, false));
else
setSortDescending(new ArrayComparator(index, false));
_isCustomDscComparator = false;
}
} else {
throw new UiException("Unknown sort type: " + type);
}
} else if ("none".equals(type)) {
setSortAscending((Comparator) null);
setSortDescending((Comparator) null);
}
}
/** Returns the ascending sorter, or null if not available.
*/
public Comparator getSortAscending() {
return _sortAsc;
}
/** Sets the ascending sorter, or null for no sorter for
* the ascending order.
*
* @param sorter the comparator used to sort the ascending order.
* If you are using the group feature, you can pass an instance of
* {@link GroupComparator} to have a better control.
* If an instance of {@link GroupComparator} is passed,
* {@link GroupComparator#compareGroup} is used to group elements,
* and {@link GroupComparator#compare} is used to sort elements
* with a group.
* Otherwise, {@link Comparator#compare} is used to group elements
* and sort elements within a group.
*/
public void setSortAscending(Comparator sorter) {
if (!Objects.equals(_sortAsc, sorter)) {
_sortAsc = sorter;
_isCustomAscComparator = _sortAsc != null;
String nm = _isCustomAscComparator ? "fromServer" : "none";
if (!_sortAscNm.equals(nm)) {
_sortAscNm = nm;
smartUpdate("sortAscending", _sortAscNm);
}
}
}
/** Sets the ascending sorter with the class name, or null for
* no sorter for the ascending order.
*/
public void setSortAscending(String clsnm)
throws ClassNotFoundException, InstantiationException, IllegalAccessException {
if (!Strings.isBlank(clsnm) && clsnm.startsWith("client") && !_sortAscNm.equals(clsnm)) {
_sortAscNm = clsnm;
smartUpdate("sortAscending", clsnm);
} else
setSortAscending(toComparator(clsnm));
}
/** Returns the descending sorter, or null if not available.
*/
public Comparator getSortDescending() {
return _sortDsc;
}
/** Sets the descending sorter, or null for no sorter for the
* descending order.
*
* @param sorter the comparator used to sort the ascending order.
* If you are using the group feature, you can pass an instance of
* {@link GroupComparator} to have a better control.
* If an instance of {@link GroupComparator} is passed,
* {@link GroupComparator#compareGroup} is used to group elements,
* and {@link GroupComparator#compare} is used to sort elements
* with a group.
* Otherwise, {@link Comparator#compare} is used to group elements
* and sort elements within a group.
*/
public void setSortDescending(Comparator sorter) {
if (!Objects.equals(_sortDsc, sorter)) {
_sortDsc = sorter;
_isCustomDscComparator = _sortDsc != null;
String nm = _isCustomDscComparator ? "fromServer" : "none";
if (!_sortDscNm.equals(nm)) {
_sortDscNm = nm;
smartUpdate("sortDescending", _sortDscNm);
}
}
}
/** Sets the descending sorter with the class name, or null for
* no sorter for the descending order.
*/
public void setSortDescending(String clsnm)
throws ClassNotFoundException, InstantiationException, IllegalAccessException {
if (!Strings.isBlank(clsnm) && clsnm.startsWith("client") && !_sortDscNm.equals(clsnm)) {
_sortDscNm = clsnm;
smartUpdate("sortDescending", clsnm);
} else
setSortDescending(toComparator(clsnm));
}
private Comparator toComparator(String clsnm)
throws ClassNotFoundException, InstantiationException, IllegalAccessException {
if (clsnm == null || clsnm.length() == 0)
return null;
final Page page = getPage();
final Class cls = page != null ? page.resolveClass(clsnm) : Classes.forNameByThread(clsnm);
if (cls == null)
throw new ClassNotFoundException(clsnm);
if (!Comparator.class.isAssignableFrom(cls))
throw new UiException("Comparator must be implemented: " + clsnm);
return (Comparator) cls.newInstance();
}
/** Returns the maximal length of each item's label.
* <p>Default: 0 (no limit).
*/
public int getMaxlength() {
return _maxlength;
}
/** Sets the maximal length of each item's label.
* <p>Default: 0 (no limit).
* <p>Notice that maxlength will be applied to this header and all
* listcell of the same column.
*/
public void setMaxlength(int maxlength) {
if (maxlength < 0)
maxlength = 0;
if (_maxlength != maxlength) {
_maxlength = maxlength;
smartUpdate("maxlength", maxlength);
}
}
/** Returns the column index, starting from 0.
*/
public int getColumnIndex() {
int j = 0;
for (Iterator it = getParent().getChildren().iterator(); it.hasNext(); ++j)
if (it.next() == this)
break;
return j;
}
/** Sorts the list items based on {@link #getSortAscending}
* and {@link #getSortDescending}, if {@link #getSortDirection} doesn't
* matches the ascending argument.
*
* <p>It checks {@link #getSortDirection} to see whether sorting
* is required, and update {@link #setSortDirection} after sorted.
* For example, if {@link #getSortDirection} returns "ascending" and
* the ascending argument is false, nothing happens.
* To enforce the sorting, you can invoke {@link #setSortDirection}
* with "natural" before invoking this method.
* Alternatively, you can invoke {@link #sort(boolean, boolean)} instead.
*
* <p>It sorts the listitem by use of {@link Components#sort}
* data (i.e., {@link Grid#getModel} is null).
*
* <p>On the other hand, it invokes {@link Sortable#sort} to sort
* the list item, if live data (i.e., {@link Listbox#getModel} is not null).
* In other words, if you use the live data, you have to implement
* {@link Sortable} to sort the live data explicitly.
*
* @param ascending whether to use {@link #getSortAscending}.
* If the corresponding comparator is not set, it returns false
* and does nothing.
* @return whether the list items are sorted.
* @exception UiException if {@link Listbox#getModel} is not
* null but {@link Sortable} is not implemented.
*/
public boolean sort(boolean ascending) {
final String dir = getSortDirection();
if (ascending) {
if ("ascending".equals(dir))
return false;
} else {
if ("descending".equals(dir))
return false;
}
return doSort(ascending);
}
/** Sorts the list items based on {@link #getSortAscending}
* and {@link #getSortDescending}.
*
* @param ascending whether to use {@link #getSortAscending}.
* If the corresponding comparator is not set, it returns false
* and does nothing.
* @param force whether to enforce the sorting no matter what the sort
* direction ({@link #getSortDirection}) is.
* If false, this method is the same as {@link #sort(boolean)}.
* @return whether the rows are sorted.
*/
public boolean sort(boolean ascending, boolean force) {
if (force)
setSortDirection("natural");
return sort(ascending);
}
/**/ boolean doSort(boolean ascending) {
final Comparator cmpr = ascending ? _sortAsc : _sortDsc;
if (cmpr == null)
return false;
final Listbox box = getListbox();
if (box == null)
return false;
//comparator might be zscript
Scopes.beforeInterpret(this);
try {
final ListModel model = box.getModel();
boolean isPagingMold = box.inPagingMold();
int activePg = isPagingMold ? box.getPaginal().getActivePage() : 0;
if (model != null) { //live data
if (model instanceof GroupsSortableModel) {
sortGroupsModel(box, (GroupsSortableModel) model, cmpr, ascending);
} else {
if (!(model instanceof Sortable))
throw new UiException(GroupsSortableModel.class + " or " + Sortable.class
+ " must be implemented in " + model.getClass().getName());
sortListModel((Sortable) model, cmpr, ascending);
}
} else { //not live data
sort0(box, cmpr);
}
if (isPagingMold)
box.getPaginal().setActivePage(activePg);
// Because of maintaining the number of the visible item, we cause
// the wrong active page when dynamically add/remove the item (i.e. sorting).
// Therefore, we have to reset the correct active page.
} finally {
Scopes.afterInterpret();
}
_ignoreSort = true;
//maintain
for (Iterator it = box.getListhead().getChildren().iterator(); it.hasNext();) {
final Listheader hd = (Listheader) it.next();
hd.setSortDirection(hd != this ? "natural" : ascending ? "ascending" : "descending");
}
_ignoreSort = false;
// sometimes the items at client side are out of date
box.invalidate();
return true;
}
private void fixDirection(Listbox listbox, boolean ascending) {
_ignoreSort = true;
//maintain
for (Iterator it = listbox.getListhead().getChildren().iterator(); it.hasNext();) {
final Listheader hd = (Listheader) it.next();
hd.setSortDirection(hd != this ? "natural" : ascending ? "ascending" : "descending");
}
_ignoreSort = false;
}
/**
* Groups and sorts the items ({@link Listitem}) based on
* {@link #getSortAscending}.
* If the corresponding comparator is not set, it returns false
* and does nothing.
*
* @param ascending whether to use {@link #getSortAscending}.
* If the corresponding comparator is not set, it returns false
* and does nothing.
* @return whether the rows are grouped.
* @since 6.5.0
*/
public boolean group(boolean ascending) {
final String dir = getSortDirection();
if (ascending) {
if ("ascending".equals(dir))
return false;
} else {
if ("descending".equals(dir))
return false;
}
final Comparator<?> cmpr = ascending ? _sortAsc : _sortDsc;
if (cmpr == null)
return false;
final Listbox listbox = getListbox();
if (listbox == null)
return false;
//comparator might be zscript
Scopes.beforeInterpret(this);
try {
final ListModel model = listbox.getModel();
int index = listbox.getListhead().getChildren().indexOf(this);
if (model != null) { //live data
if (!(model instanceof GroupsSortableModel))
throw new UiException(
GroupsSortableModel.class + " must be implemented in " + model.getClass().getName());
groupGroupsModel((GroupsSortableModel) model, cmpr, ascending, index);
} else { // not live data
final List<Listitem> items = listbox.getItems();
if (items.isEmpty())
return false; //Avoid listbox with null group
if (listbox.hasGroup()) {
for (Listgroup group : new ArrayList<Listgroup>(listbox.getGroups()))
group.detach(); // Groupfoot is removed automatically, if any.
}
Comparator<?> cmprx;
if (cmpr instanceof GroupComparator) {
cmprx = new GroupToComparator((GroupComparator) cmpr);
} else {
cmprx = cmpr;
}
final List<Listitem> children = new LinkedList<Listitem>(items);
items.clear();
sortCollection(children, cmprx);
Listitem previous = null;
for (Listitem item : children) {
if (previous == null || compare(cmprx, previous, item) != 0) {
//new group
final List<Listcell> cells = item.getChildren();
if (cells.size() < index)
throw new IndexOutOfBoundsException("Index: " + index + " but size: " + cells.size());
Listgroup group;
Listcell cell = cells.get(index);
if (cell.getLabel() != null) {
group = new Listgroup(cell.getLabel());
} else {
Component cc = cell.getFirstChild();
if (cc instanceof Label) {
String val = ((Label) cc).getValue();
group = new Listgroup(val);
} else {
group = new Listgroup(Messages.get(MZul.GRID_OTHER));
}
}
listbox.appendChild(group);
}
listbox.appendChild(item);
previous = item;
}
if (cmprx != cmpr)
sort0(listbox, cmpr); //need to sort each group
}
} finally {
Scopes.afterInterpret();
}
fixDirection(listbox, ascending);
// sometimes the items at client side are out of date
listbox.invalidate();
return true;
}
@SuppressWarnings("unchecked")
private void groupGroupsModel(GroupsSortableModel model, Comparator cmpr, boolean ascending, int index) {
model.group(cmpr, ascending, index);
}
@SuppressWarnings("unchecked")
private static void sortCollection(List<Listitem> comps, Comparator cmpr) {
Collections.sort(comps, cmpr);
}
@SuppressWarnings("unchecked")
private static int compare(Comparator cmpr, Object a, Object b) {
return cmpr.compare(a, b);
}
@SuppressWarnings("unchecked")
private void sortGroupsModel(Listbox box, GroupsSortableModel model, Comparator cmpr, boolean ascending) {
model.sort(cmpr, ascending, box.getListhead().getChildren().indexOf(this));
}
@SuppressWarnings("unchecked")
private void sortListModel(Sortable model, Comparator cmpr, boolean ascending) {
model.sort(cmpr, ascending);
}
/** Sorts the items. If with group, each group is sorted independently.
*/
@SuppressWarnings("unchecked")
private static void sort0(Listbox box, Comparator cmpr) {
if (box.hasGroup())
for (Listgroup g : box.getGroups()) {
int index = g.getIndex() + 1;
Components.sort(box.getItems(), index, index + g.getItemCount(), cmpr);
}
else
Components.sort(box.getItems(), cmpr);
}
//-- event listener --//
/**
* Invokes a sorting action based on a {@link SortEvent} and maintains
* {@link #getSortDirection}.
* @since 6.5.0
*/
public void onSort(SortEvent event) {
sort(event.isAscending());
}
/**
* Internal use only.
* @since 6.5.0
*/
public void onGroupLater(SortEvent event) {
group(event.isAscending());
}
/**
* Ungroups and sorts the items ({@link Listitem}) based on the ascending.
* If the corresponding comparator is not set, it returns false
* and does nothing.
*
* @param ascending whether to use {@link #getSortAscending}.
* If the corresponding comparator is not set, it returns false
* and does nothing.
* @since 6.5.0
*/
public void ungroup(boolean ascending) {
final Comparator<?> cmpr = ascending ? _sortAsc : _sortDsc;
if (cmpr != null) {
final Listbox listbox = getListbox();
if (listbox.getModel() == null) {
// comparator might be zscript
Scopes.beforeInterpret(this);
try {
final List<Listitem> items = listbox.getItems();
if (listbox.hasGroup()) {
for (Listgroup group : new ArrayList<Listgroup>(listbox.getGroups()))
group.detach(); // Listgroupfoot is removed
// automatically, if any.
}
Comparator<?> cmprx;
if (cmpr instanceof GroupComparator) {
cmprx = new GroupToComparator((GroupComparator) cmpr);
} else {
cmprx = cmpr;
}
final List<Listitem> children = new LinkedList<Listitem>(items);
items.clear();
sortCollection(children, cmprx);
for (Component c : children)
listbox.appendChild(c);
} finally {
Scopes.afterInterpret();
}
}
fixDirection(listbox, ascending);
// sometimes the items at client side are out of date
listbox.invalidate();
}
}
//-- super --//
public String getZclass() {
return _zclass == null ? "z-listheader" : _zclass;
}
//-- Component --//
public void beforeParentChanged(Component parent) {
if (parent != null && !(parent instanceof Listhead))
throw new UiException("Wrong parent: " + parent);
super.beforeParentChanged(parent);
}
/** Processes an AU request.
* <p>Default: in addition to what are handled by its superclass, it also
* handles onSort.
* @since 6.5.0
*/
public void service(org.zkoss.zk.au.AuRequest request, boolean everError) {
final String cmd = request.getCommand();
if (cmd.equals(Events.ON_SORT)) {
SortEvent evt = SortEvent.getSortEvent(request);
Events.postEvent(evt);
} else if (cmd.equals(Events.ON_GROUP)) {
final Map<String, Object> data = request.getData();
final boolean ascending = AuRequests.getBoolean(data, "");
Events.postEvent(new SortEvent(cmd, this, ascending));
// internal use, and it should be invoked after onGroup event.
Events.postEvent(-1000, new SortEvent("onGroupLater", this, ascending));
} else if (cmd.equals(Events.ON_UNGROUP)) {
final Map<String, Object> data = request.getData();
final boolean ascending = AuRequests.getBoolean(data, "");
ungroup(ascending);
Events.postEvent(new SortEvent(cmd, request.getComponent(), ascending));
} else
super.service(request, everError);
}
// super
protected void renderProperties(org.zkoss.zk.ui.sys.ContentRenderer renderer) throws java.io.IOException {
super.renderProperties(renderer);
if (!"none".equals(_sortDscNm))
render(renderer, "sortDescending", _sortDscNm);
if (!"none".equals(_sortAscNm))
render(renderer, "sortAscending", _sortAscNm);
if (!"natural".equals(_sortDir))
render(renderer, "sortDirection", _sortDir);
if (_maxlength > 0)
renderer.render("maxlength", _maxlength);
org.zkoss.zul.impl.Utils.renderCrawlableText(getLabel());
}
//Cloneable//
public Object clone() {
final Listheader clone = (Listheader) super.clone();
clone.fixClone();
return clone;
}
private void fixClone() {
if (_sortAsc instanceof ListitemComparator) {
final ListitemComparator c = (ListitemComparator) _sortAsc;
if (c.getListheader() == this && c.isAscending())
_sortAsc = new ListitemComparator(this, true, c.shallIgnoreCase());
}
if (_sortDsc instanceof ListitemComparator) {
final ListitemComparator c = (ListitemComparator) _sortDsc;
if (c.getListheader() == this && !c.isAscending())
_sortDsc = new ListitemComparator(this, false, c.shallIgnoreCase());
}
}
//Serializable//
//NOTE: they must be declared as private
private synchronized void writeObject(java.io.ObjectOutputStream s) throws java.io.IOException {
s.defaultWriteObject();
boolean written = false;
if (_sortAsc instanceof ListitemComparator) {
final ListitemComparator c = (ListitemComparator) _sortAsc;
if (c.getListheader() == this && c.isAscending()) {
s.writeBoolean(true);
s.writeBoolean(c.shallIgnoreCase());
s.writeBoolean(c.byValue());
written = true;
}
}
if (!written) {
s.writeBoolean(false);
if (_sortAsc instanceof Serializable) {
s.writeObject(_sortAsc);
} else if (_sortAsc != null) {
throw new java.io.NotSerializableException(_sortAsc.getClass().getName());
} else {
s.writeObject(null);
}
}
written = false;
if (_sortDsc instanceof ListitemComparator) {
final ListitemComparator c = (ListitemComparator) _sortDsc;
if (c.getListheader() == this && !c.isAscending()) {
s.writeBoolean(true);
s.writeBoolean(c.shallIgnoreCase());
s.writeBoolean(c.byValue());
written = true;
}
}
if (!written) {
s.writeBoolean(false);
if (_sortDsc instanceof Serializable) {
s.writeObject(_sortDsc);
} else if (_sortDsc != null) {
throw new java.io.NotSerializableException(_sortDsc.getClass().getName());
} else {
s.writeObject(null);
}
}
}
private void readObject(java.io.ObjectInputStream s) throws java.io.IOException, ClassNotFoundException {
s.defaultReadObject();
boolean b = s.readBoolean();
if (b) {
final boolean igcs = s.readBoolean();
final boolean byval = s.readBoolean();
_sortAsc = new ListitemComparator(this, true, igcs, byval);
} else {
//bug #2830325 FieldComparator not castable to ListItemComparator
_sortAsc = (Comparator) s.readObject();
}
b = s.readBoolean();
if (b) {
final boolean igcs = s.readBoolean();
final boolean byval = s.readBoolean();
_sortDsc = new ListitemComparator(this, false, igcs, byval);
} else {
//bug #2830325 FieldComparator not castable to ListItemComparator
_sortDsc = (Comparator) s.readObject();
}
}
private static class GroupToComparator implements Comparator {
private final GroupComparator _gcmpr;
private GroupToComparator(GroupComparator gcmpr) {
_gcmpr = gcmpr;
}
@SuppressWarnings("unchecked")
public int compare(Object o1, Object o2) {
return _gcmpr.compareGroup(o1, o2);
}
}
//B70-ZK-1816, also add in zk 8, ZK-2660
protected void updateByClient(String name, Object value) {
if ("visible".equals(name))
this.setVisibleDirectly(((Boolean) value).booleanValue());
else
super.updateByClient(name, value);
}
}