//
// System.Web.UI.WebControls.MenuItemCollection.cs
//
// Authors:
// Lluis Sanchez Gual (lluis@novell.com)
//
// (C) 2004 Novell, Inc (http://www.novell.com)
//
// 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.
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
#if NET_2_0
using System;
using System.Web.UI;
using System.Collections;
namespace System.Web.UI.WebControls{
public sealed class MenuItemCollection: ICollection, IEnumerable, IStateManager
{
ArrayList items = new ArrayList ();
Menu menu;
MenuItem parent;
bool marked;
bool dirty;
public MenuItemCollection ()
{
}
public MenuItemCollection (MenuItem owner)
{
this.parent = owner;
this.menu = owner.Menu;
}
internal MenuItemCollection (Menu menu)
{
this.menu = menu;
}
internal void SetMenu (Menu menu)
{
this.menu = menu;
foreach (MenuItem item in items)
item.Menu = menu;
}
public MenuItem this [int i] {
get { return (MenuItem) items [i]; }
}
public void Add (MenuItem child)
{
child.Index = items.Add (child);
child.Menu = menu;
child.SetParent (parent);
if (marked) {
((IStateManager)child).TrackViewState ();
SetDirty ();
}
}
internal void SetDirty () {
for (int n = 0; n < Count; n++)
this [n].SetDirty ();
dirty = true;
}
public void AddAt (int index, MenuItem child)
{
items.Insert (index, child);
child.Index = index;
child.Menu = menu;
child.SetParent (parent);
for (int n=index+1; n<items.Count; n++)
((MenuItem)items[n]).Index = n;
if (marked) {
((IStateManager)child).TrackViewState ();
SetDirty ();
}
}
public void Clear ()
{
if (menu != null || parent != null) {
foreach (MenuItem nod in items) {
nod.Menu = null;
nod.SetParent (null);
}
}
items.Clear ();
if (marked) {
SetDirty ();
}
}
public bool Contains (MenuItem child)
{
return items.Contains (child);
}
public void CopyTo (Array itemArray, int index)
{
items.CopyTo (itemArray, index);
}
public void CopyTo (MenuItem[] itemArray, int index)
{
items.CopyTo (itemArray, index);
}
public IEnumerator GetEnumerator ()
{
return items.GetEnumerator ();
}
public int IndexOf (MenuItem item)
{
return items.IndexOf (item);
}
public void Remove (MenuItem item)
{
int i = IndexOf (item);
if (i == -1) return;
items.RemoveAt (i);
if (menu != null)
item.Menu = null;
if (marked) {
SetDirty ();
}
}
public void RemoveAt (int index)
{
MenuItem item = (MenuItem) items [index];
items.RemoveAt (index);
if (menu != null)
item.Menu = null;
if (marked) {
SetDirty ();
}
}
public int Count {
get { return items.Count; }
}
public bool IsSynchronized {
get { return false; }
}
public object SyncRoot {
get { return items; }
}
void System.Collections.ICollection.CopyTo (Array array, int index)
{
items.CopyTo (array, index);
}
void IStateManager.LoadViewState (object state)
{
if (state == null) return;
object[] its = (object[]) state;
dirty = (bool)its [0];
if (dirty) {
items.Clear ();
for (int n = 1; n < its.Length; n++) {
MenuItem item = new MenuItem ();
Add (item);
object ns = its [n];
if (ns != null)
((IStateManager) item).LoadViewState (ns);
}
}
else {
for (int n = 1; n < its.Length; n++) {
Pair pair = (Pair) its [n];
int oi = (int) pair.First;
MenuItem node = (MenuItem) items [oi];
((IStateManager) node).LoadViewState (pair.Second);
}
}
}
object IStateManager.SaveViewState ()
{
object[] state = null;
bool hasData = false;
if (dirty) {
if (items.Count > 0) {
hasData = true;
state = new object [items.Count + 1];
state [0] = true;
for (int n = 0; n < items.Count; n++) {
MenuItem item = items [n] as MenuItem;
object ns = ((IStateManager) item).SaveViewState ();
state [n + 1] = ns;
}
}
} else {
ArrayList list = new ArrayList ();
for (int n=0; n<items.Count; n++) {
MenuItem item = items[n] as MenuItem;
object ns = ((IStateManager)item).SaveViewState ();
if (ns != null) {
hasData = true;
list.Add (new Pair (n, ns));
}
}
if (hasData) {
list.Insert (0, false);
state = list.ToArray ();
}
}
if (hasData)
return state;
else
return null;
}
void IStateManager.TrackViewState ()
{
marked = true;
for (int n=0; n<items.Count; n++)
((IStateManager) items [n]).TrackViewState ();
}
bool IStateManager.IsTrackingViewState {
get { return marked; }
}
}
}
#endif
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