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//
// System.ComponentModel.Container.cs
//
// Author:
// Miguel de Icaza (miguel@ximian.com)
// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
// Ivan N. Zlatev (contact i-nZ.net)
//
// (C) Ximian, Inc. http://www.ximian.com
// (C) 2003 Andreas Nahr
// (C) 2006 Ivan N. Zlatev
//
//
// 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;
namespace System.ComponentModel {
// <summary>
// Container class: encapsulates components.
// </summary>
//
// <remarks>
//
// </remarks>
public class Container : IContainer, IDisposable {
private ArrayList c = new ArrayList ();
//ComponentCollection cc;
// <summary>
// Auxiliary class to support the default behaviour of CreateSite
// </summary>
//
// <remarks>
// This is an internal class that is used to provide a
// default implementation of an ISite class. Container
// is just a default implementation of IContainer, and
// provides this as a way of getting started
// </remarks>
class DefaultSite : ISite {
private IComponent component;
private Container container;
private string name;
public DefaultSite (string name, IComponent component, Container container)
{
this.component = component;
this.container = container;
this.name = name;
}
public IComponent Component {
get {
return component;
}
}
public IContainer Container {
get {
return container;
}
}
public bool DesignMode {
get {
return false;
}
}
public string Name {
get {
return name;
}
set {
name = value;
}
}
public virtual object GetService (Type t)
{
if (typeof (ISite) == t)
return this;
return container.GetService (t);
}
}
// <summary>
// Container constructor
// </summary>
public Container ()
{
}
public virtual ComponentCollection Components {
get {
Array a = c.ToArray(typeof (IComponent));
return new ComponentCollection((IComponent[]) a);
}
}
public virtual void Add (IComponent component)
{
Add (component, null);
}
public virtual void Add (IComponent component, string name)
{
if (component != null) {
if (component.Site == null || component.Site.Container != this) {
if (component.Site != null) {
component.Site.Container.Remove (component);
}
component.Site = this.CreateSite (component, name);
c.Add (component);
}
}
}
protected virtual ISite CreateSite (IComponent component, string name)
{
return new DefaultSite (name, component, this);
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
bool disposed = false;
protected virtual void Dispose (bool release_all)
{
if (disposed)
return;
disposed = true;
if (release_all){
foreach (IComponent component in c)
component.Dispose ();
}
c = null;
}
~Container ()
{
Dispose (false);
}
protected virtual object GetService (Type service)
{
if (typeof(IContainer) != service) {
return null;
}
return this;
}
public virtual void Remove (IComponent component)
{
Remove (component, true);
}
private void Remove (IComponent component, bool unsite)
{
if (component.Site != null && component.Site.Container == this) {
if (unsite) {
component.Site = null;
}
c.Remove (component);
}
}
#if NET_2_0
protected void RemoveWithoutUnsiting (IComponent component)
{
if (component.Site != null && component.Site.Container == this) {
Remove (component, false);
}
}
#endif
}
}
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