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//
// System.ComponentModel.NestedContainer
//
// Authors:
// Ivan N. Zlatev (contact i-nZ.net)
//
// (C) 2006-2007 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;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
namespace System.ComponentModel
{
// Differences compared to Container:
// * Site's DesignMode property is routed through the owning component's site. Note that even though MSDN
// says that GetService is routed as well, it actually isn't. The unit tests proof that.
// * According to MSDN the site's Name property is a qualified name that includes the owning component's name followed by a
// period (.) and the child component's name. It is not again according to the tests.
// * GetService provides support for the INestedContainer as a service.
// * When the owning component is disposed, the container is disposed as well.
public class NestedContainer : Container, INestedContainer, IContainer, IDisposable
{
#region Site : INestedSite, ISite, IServiceProvider
private class Site : INestedSite, ISite, IServiceProvider
{
private IComponent _component;
private NestedContainer _nestedContainer;
private string _siteName;
public Site (IComponent component, NestedContainer container, string name)
{
_component = component;
_nestedContainer = container;
_siteName = name;
}
public IComponent Component {
get { return _component; }
}
public IContainer Container {
get { return _nestedContainer; }
}
public bool DesignMode {
get {
if (_nestedContainer.Owner != null
&& _nestedContainer.Owner.Site != null) {
return _nestedContainer.Owner.Site.DesignMode;
}
else {
return false;
}
}
}
public string Name {
get { return _siteName; }
set { _siteName = value; }
}
// [owner].[component]
//
public string FullName {
get {
if (_siteName == null) {
return null;
}
if (_nestedContainer.OwnerName == null) {
return _siteName;
}
return _nestedContainer.OwnerName + "." + _siteName;
}
}
public virtual object GetService (Type service)
{
if (service == typeof (ISite)) {
return this;
}
return _nestedContainer.GetService (service);
}
} // Site
#endregion
private IComponent _owner;
public NestedContainer (IComponent owner)
{
if (owner == null)
throw new ArgumentNullException ("owner");
_owner = owner;
_owner.Disposed += new EventHandler (OnOwnerDisposed);
}
public IComponent Owner {
get { return _owner; }
}
protected virtual string OwnerName {
get {
if (_owner.Site is INestedSite)
return ((INestedSite) _owner.Site).FullName;
if (_owner == null || _owner.Site == null)
return null;
return _owner.Site.Name;
}
}
protected override ISite CreateSite (IComponent component, string name)
{
if (component == null)
throw new ArgumentNullException("component");
return new NestedContainer.Site (component, this, name);
}
protected override object GetService (Type service)
{
if (service == typeof (INestedContainer))
return this;
return base.GetService (service);
}
protected override void Dispose (bool disposing)
{
if (disposing)
_owner.Disposed -= new EventHandler (OnOwnerDisposed);
base.Dispose (disposing);
}
private void OnOwnerDisposed (object sender, EventArgs e)
{
this.Dispose ();
}
}
}
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