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//
// System.Web.UI.WebControls.SiteMapDataSource.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.
//
#if NET_2_0
using System;
using System.Collections;
using System.Web.UI;
using System.Web.Util;
using System.ComponentModel;
namespace System.Web.UI.WebControls
{
[PersistChildrenAttribute (false)]
[DesignerAttribute ("System.Web.UI.Design.WebControls.SiteMapDataSourceDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
[ParseChildrenAttribute (true)]
public class SiteMapDataSource : HierarchicalDataSourceControl, IDataSource, IListSource
{
static string[] emptyNames = new string[] { string.Empty };
SiteMapProvider provider;
public virtual ICollection GetViewNames ()
{
return emptyNames;
}
public virtual IList GetList ()
{
return ListSourceHelper.GetList (this);
}
[BrowsableAttribute (false)]
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
public virtual bool ContainsListCollection {
get { return ListSourceHelper.ContainsListCollection (this); }
}
event EventHandler IDataSource.DataSourceChanged {
add { ((IHierarchicalDataSource)this).DataSourceChanged += value; }
remove { ((IHierarchicalDataSource)this).DataSourceChanged -= value; }
}
[BrowsableAttribute (false)]
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
public SiteMapProvider Provider {
get {
if (provider == null) {
if (this.SiteMapProvider.Length == 0) {
provider = SiteMap.Provider;
if (provider == null)
throw new HttpException ("There is no default provider configured for the site.");
} else {
provider = SiteMap.Providers [this.SiteMapProvider];
if (provider == null)
throw new HttpException ("SiteMap provider '" + this.SiteMapProvider + "' not found.");
}
}
return provider;
}
set {
provider = value;
OnDataSourceChanged (EventArgs.Empty);
}
}
[DefaultValueAttribute ("")]
public virtual string SiteMapProvider {
get {
object o = ViewState ["SiteMapProvider"];
if (o != null) return (string) o;
else return string.Empty;
}
set {
ViewState ["SiteMapProvider"] = value;
OnDataSourceChanged (EventArgs.Empty);
}
}
[DefaultValueAttribute ("")]
[EditorAttribute ("System.Web.UI.Design.UrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
[UrlPropertyAttribute]
public virtual string StartingNodeUrl {
get {
object o = ViewState ["StartingNodeUrl"];
if (o != null) return (string) o;
else return string.Empty;
}
set {
ViewState ["StartingNodeUrl"] = value;
OnDataSourceChanged (EventArgs.Empty);
}
}
[DefaultValueAttribute (false)]
public virtual bool StartFromCurrentNode {
get {
object o = ViewState ["StartFromCurrentNode"];
if (o != null) return (bool) o;
else return false;
}
set {
ViewState ["StartFromCurrentNode"] = value;
OnDataSourceChanged (EventArgs.Empty);
}
}
[DefaultValueAttribute (true)]
public virtual bool ShowStartingNode {
get {
object o = ViewState ["ShowStartingNode"];
if (o != null) return (bool) o;
else return true;
}
set {
ViewState ["ShowStartingNode"] = value;
OnDataSourceChanged (EventArgs.Empty);
}
}
public virtual DataSourceView GetView (string viewName)
{
SiteMapNode node = GetStartNode (viewName);
if (node == null)
return new SiteMapDataSourceView (this, viewName, SiteMapNodeCollection.EmptyList);
else if (ShowStartingNode)
return new SiteMapDataSourceView (this, viewName, node);
else
return new SiteMapDataSourceView (this, viewName, node.ChildNodes);
}
protected override HierarchicalDataSourceView GetHierarchicalView (string viewPath)
{
SiteMapNode node = GetStartNode (viewPath);
if (node == null)
return new SiteMapHierarchicalDataSourceView (SiteMapNodeCollection.EmptyList);
else if (ShowStartingNode || node == null)
return new SiteMapHierarchicalDataSourceView (node);
else
return new SiteMapHierarchicalDataSourceView (node.ChildNodes);
}
SiteMapNode GetStartNode (string viewPath)
{
if (viewPath != null && viewPath.Length != 0) {
string url = MapUrl (StartingNodeUrl);
return Provider.FindSiteMapNode (url);
}
else if (StartFromCurrentNode) {
if (StartingNodeUrl.Length != 0)
throw new InvalidOperationException ("StartingNodeUrl can't be set if StartFromCurrentNode is set to true.");
return Provider.CurrentNode;
}
else if (StartingNodeUrl.Length != 0) {
string url = MapUrl (StartingNodeUrl);
SiteMapNode node = Provider.FindSiteMapNode (url);
if (node == null) throw new ArgumentException ("Can't find a site map node for the url: " + StartingNodeUrl);
return node;
}
else
return Provider.RootNode;
}
string MapUrl (string url)
{
if (UrlUtils.IsRelativeUrl (url))
return UrlUtils.Combine (HttpRuntime.AppDomainAppVirtualPath, url);
else
return UrlUtils.ResolveVirtualPathFromAppAbsolute (url);
}
}
}
#endif
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