//============================================================
// ICOMPARABLE IMPLEMENTATION
//============================================================
#region CompareTo(object obj)
/// <summary>
/// Compares the current instance with another object of the same type.
/// </summary>
/// <param name="obj">An object to compare with this instance.</param>
/// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns>
/// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception>
public int CompareTo(object obj)
{
//------------------------------------------------------------
// If target is a null reference, instance is greater
//------------------------------------------------------------
if (obj == null)
{
return(1);
}
//------------------------------------------------------------
// Determine comparison result using property state of objects
//------------------------------------------------------------
SyndicationExtensionLoadedEventArgs value = obj as SyndicationExtensionLoadedEventArgs;
if (value != null)
{
int result = 0;
if (this.Data != null)
{
if (value.Data != null)
{
result = result | String.Compare(this.Data.OuterXml, value.Data.OuterXml, StringComparison.Ordinal);
}
else
{
result = result | 1;
}
}
else if (value.Data != null)
{
result = result | -1;
}
if (this.Extension != null)
{
if (value.Extension != null)
{
result = result | String.Compare(this.Extension.ToString(), value.Extension.ToString(), StringComparison.Ordinal);
}
else
{
result = result | 1;
}
}
else if (value.Extension != null)
{
result = result | -1;
}
return(result);
}
else
{
throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj");
}
}
/// <summary>
/// Raises the <see cref="SyndicationExtension.Loaded"/> event.
/// </summary>
/// <param name="e">A <see cref="SyndicationExtensionLoadedEventArgs"/> that contains the event data.</param>
protected virtual void OnExtensionLoaded(SyndicationExtensionLoadedEventArgs e)
{
EventHandler <SyndicationExtensionLoadedEventArgs> handler = null;
handler = this.Loaded;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// Compares the current instance with another object of the same type.
/// </summary>
/// <param name="obj">An object to compare with this instance.</param>
/// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns>
/// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception>
public int CompareTo(object obj)
{
if (obj == null)
{
return(1);
}
SyndicationExtensionLoadedEventArgs value = obj as SyndicationExtensionLoadedEventArgs;
if (value != null)
{
int result = 0;
if (this.Data != null)
{
if (value.Data != null)
{
result = result | String.Compare(this.Data.OuterXml, value.Data.OuterXml, StringComparison.Ordinal);
}
else
{
result = result | 1;
}
}
else if (value.Data != null)
{
result = result | -1;
}
if (this.Extension != null)
{
if (value.Extension != null)
{
result = result | String.Compare(this.Extension.ToString(), value.Extension.ToString(), StringComparison.Ordinal);
}
else
{
result = result | 1;
}
}
else if (value.Extension != null)
{
result = result | -1;
}
return(result);
}
else
{
throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj");
}
}
//============================================================
// EVENT HANDLER DELEGATE METHODS
//============================================================
#region OnExtensionLoaded(SyndicationExtensionLoadedEventArgs e)
/// <summary>
/// Raises the <see cref="SyndicationExtension.Loaded"/> event.
/// </summary>
/// <param name="e">A <see cref="SyndicationExtensionLoadedEventArgs"/> that contains the event data.</param>
protected virtual void OnExtensionLoaded(SyndicationExtensionLoadedEventArgs e)
{
//------------------------------------------------------------
// Local members
//------------------------------------------------------------
EventHandler <SyndicationExtensionLoadedEventArgs> handler = null;
//------------------------------------------------------------
// Raise event on registered handler(s)
//------------------------------------------------------------
handler = this.Loaded;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// Raises the <see cref="SyndicationExtension.Loaded"/> event.
/// </summary>
/// <param name="e">A <see cref="SyndicationExtensionLoadedEventArgs"/> that contains the event data.</param>
protected virtual void OnExtensionLoaded(SyndicationExtensionLoadedEventArgs e)
{
//------------------------------------------------------------
// Local members
//------------------------------------------------------------
EventHandler<SyndicationExtensionLoadedEventArgs> handler = null;
//------------------------------------------------------------
// Raise event on registered handler(s)
//------------------------------------------------------------
handler = this.Loaded;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// Initializes the syndication extension using the supplied <see cref="IXPathNavigable"/>.
/// </summary>
/// <param name="source">The <b>IXPathNavigable</b> used to load this <see cref="MyCustomSyndicationExtension"/>.</param>
/// <returns><b>true</b> if the <see cref="MyCustomSyndicationExtension"/> was able to be initialized using the supplied <paramref name="source"/>; otherwise <b>false</b>.</returns>
/// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception>
public override bool Load(IXPathNavigable source)
{
//------------------------------------------------------------
// Local members
//------------------------------------------------------------
bool wasLoaded = false;
//------------------------------------------------------------
// Validate parameter
//------------------------------------------------------------
Guard.ArgumentNotNull(source, "source");
//------------------------------------------------------------
// Attempt to extract syndication extension information
//------------------------------------------------------------
XPathNavigator navigator = source.CreateNavigator();
if (navigator.HasAttributes)
{
string myAttribute = navigator.GetAttribute("someAttribute", String.Empty);
if (!String.IsNullOrEmpty(myAttribute))
{
this.MyAttribute = myAttribute;
wasLoaded = true;
}
}
//------------------------------------------------------------
// Raise extension loaded event
//------------------------------------------------------------
SyndicationExtensionLoadedEventArgs args = new SyndicationExtensionLoadedEventArgs(source, this);
this.OnExtensionLoaded(args);
return wasLoaded;
}