SiteMapNodeCollection.cs :  » 2.6.4-mono-.net-core » System.Web » System » Web » C# / CSharp Open Source

//
// System.Web.SiteMapNodeCollection
//
// Authors:
//  Ben Maurer (bmaurer@users.sourceforge.net)
//  Lluis Sanchez Gual (lluis@novell.com)
//
//  (C) 2003 Ben Maurer
//  (C) 2005-2009 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.
//

using System.Collections;
using System.Collections.Specialized;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace System.Web{
  public class SiteMapNodeCollection : IList, IHierarchicalEnumerable
  {
    ArrayList list;
#if TARGET_JVM
    const string _siteMapNodeCollection_EmptyList = "SiteMapNodeCollection.EmptyList";
    internal static SiteMapNodeCollection EmptyList
    {
      get { return (SiteMapNodeCollection) AppDomain.CurrentDomain.GetData (_siteMapNodeCollection_EmptyList); }
      set { AppDomain.CurrentDomain.SetData (_siteMapNodeCollection_EmptyList, value); }
    }
#else
    internal static SiteMapNodeCollection EmptyList;
#endif
    
    static SiteMapNodeCollection ()
    {
      EmptyList = new SiteMapNodeCollection ();
      EmptyList.list = ArrayList.ReadOnly (new ArrayList ());
    }
    
    public SiteMapNodeCollection ()
    {
    }
    
    public SiteMapNodeCollection (int capacity)
    {
      list = new ArrayList (capacity);
    }
    
    public SiteMapNodeCollection (SiteMapNode value)
    {
      Add (value);
    }
    
    public SiteMapNodeCollection (SiteMapNode[] values)
    {
      AddRangeInternal (values);
    }
    
    public SiteMapNodeCollection (SiteMapNodeCollection values)
    {
      AddRangeInternal (values);
    }
    
    internal static SiteMapNodeCollection EmptyCollection {
      get { return EmptyList; }
    }
    
    ArrayList List {
      get {
        if (list == null) list = new ArrayList ();
        return list;
      }
    }
    
    public virtual int Count {
      get { return list == null ? 0 : list.Count; }
    }
    
    public virtual bool IsSynchronized {
      get { return false; }
    }
    
    public virtual object SyncRoot {
      get { return this; }
    }
    
    public virtual IEnumerator GetEnumerator ()
    {
      return list != null ? list.GetEnumerator () : Type.EmptyTypes.GetEnumerator ();
    }
    
    public virtual void Clear ()
    {
      if (list != null) list.Clear ();
    }
    
    public virtual void RemoveAt (int index)
    {
      List.RemoveAt (index);
    }
    
    public virtual int Add (SiteMapNode value)
    {
      if (value == null)
        throw new ArgumentNullException ("value");
      return this.List.Add (value);
    }
    
    public virtual void AddRange (System.Web.SiteMapNode[] value)
    {
      this.AddRangeInternal (value);
    }
    
    public virtual void AddRange (SiteMapNodeCollection value)
    {
      this.AddRangeInternal (value);
    }
    
    internal virtual void AddRangeInternal (IList value)
    {
      if (value == null)
        throw new ArgumentNullException ("value");

      List.AddRange (value);
    }

    public virtual bool Contains (SiteMapNode value)
    {
      return this.List.Contains (value);
    }
    
    public virtual void CopyTo (System.Web.SiteMapNode[] array, int index)
    {
      this.List.CopyTo (array, index);
    }
    
    public virtual int IndexOf (SiteMapNode value)
    {
      return this.List.IndexOf (value);
    }
    
    public virtual void Insert (int index, SiteMapNode value)
    {
      this.List.Insert (index, value);
    }
    
    protected virtual void OnValidate (object value)
    {
      if (!(value is SiteMapNode))
        throw new ArgumentException ("Invalid type");
    }

    public static SiteMapNodeCollection ReadOnly (SiteMapNodeCollection collection)
    {
      SiteMapNodeCollection col = new SiteMapNodeCollection ();
      if (collection.list != null)
        col.list = ArrayList.ReadOnly (collection.list);
      else
        col.list = ArrayList.ReadOnly (new ArrayList ());
      return col;
    }
    
    public virtual void Remove (SiteMapNode value)
    {
      this.List.Remove (value);
    }
    
    public virtual IHierarchyData GetHierarchyData (object enumeratedItem)
    {
      return enumeratedItem as IHierarchyData;
    }
    
    public SiteMapDataSourceView GetDataSourceView (SiteMapDataSource owner, string viewName)
    {
      return new SiteMapDataSourceView (owner, viewName, this);
    }
    
    public SiteMapHierarchicalDataSourceView GetHierarchicalDataSourceView ()
    {
      return new SiteMapHierarchicalDataSourceView (this);
    }
    
    public virtual SiteMapNode this [int index] {
      get { return (SiteMapNode) this.List [index]; }
      set { this.List [index] = value; }
    }
    
    public virtual bool IsFixedSize {
      get { return List.IsFixedSize; }
    }

    public virtual bool IsReadOnly {
      get { return list != null && list.IsReadOnly; }
    }

    #region IList Members

    object IList.this [int index] {
      get { return List [index]; }
      set { OnValidate (value); List [index] = value; }
    }
    
    int IList.Add (object value)
    {
      OnValidate (value);
      return List.Add (value);
    }
    
    bool IList.Contains (object value)
    {
      return List.Contains (value);
    }
    
    int IList.IndexOf (object value)
    {
      return List.IndexOf (value);
    }
    
    void IList.Insert (int index, object value)
    {
      OnValidate (value);
      List.Insert (index, value);
    }
    
    void IList.Remove (object value)
    {
      OnValidate (value);
      List.Remove (value);
    }
    
    void ICollection.CopyTo (Array array, int index)
    {
      List.CopyTo (array, index);
    }

    void IList.Clear () {
      Clear ();
    }

    bool IList.IsFixedSize {
      get { return IsFixedSize; }
    }

    bool IList.IsReadOnly {
      get { return IsReadOnly; }
    }

    void IList.RemoveAt (int index) {
      RemoveAt (index);
    }

    #endregion

    #region ICollection Members


    int ICollection.Count {
      get { return Count; }
    }

    bool ICollection.IsSynchronized {
      get { return IsSynchronized; }
    }

    object ICollection.SyncRoot {
      get { return SyncRoot; }
    }

    #endregion

    #region IEnumerable Members

    IEnumerator IEnumerable.GetEnumerator () {
      return GetEnumerator ();
    }

    #endregion

    #region IHierarchicalEnumerable Members

    IHierarchyData IHierarchicalEnumerable.GetHierarchyData (object enumeratedItem) {
      return GetHierarchyData (enumeratedItem);
    }

    #endregion
  }
}