//-------------------------------------------------------------------
//
// IServiceProvider Members
//
//-------------------------------------------------------------------
#region IServiceProvider Members
/// <summary>
/// Gets the service object of the specified type.
/// </summary>
/// <param name="serviceType">
/// An object that specifies the type of service object to get.
/// </param>
/// <returns>
/// A service object of type serviceType. A null reference if there is no
/// service object of type serviceType.
/// </returns>
object IServiceProvider.GetService(Type serviceType)
{
object service = null;
if (serviceType == typeof(ITextView))
{
if (_textView == null && _document != null)
{
_textView = new DocumentPageTextView(this, _document.StructuralCache.TextContainer);
}
service = _textView;
}
else if (serviceType == typeof(ITextContainer))
{
if (Document != null)
{
service = Document.StructuralCache.TextContainer as TextContainer;
}
}
return(service);
}
//-------------------------------------------------------------------
//
// IServiceProvider Members
//
//-------------------------------------------------------------------
#region IServiceProvider Members
/// <summary>
/// Gets the service object of the specified type.
/// </summary>
/// <param name="serviceType">
/// An object that specifies the type of service object to get.
/// </param>
/// <returns>
/// A service object of type serviceType. A null reference if there is no
/// service object of type serviceType.
/// </returns>
object IServiceProvider.GetService(Type serviceType)
{
object service = null;
if (serviceType == typeof(ITextView))
{
if (_textView == null && _document != null)
{
_textView = new DocumentPageTextView(this, _document.StructuralCache.TextContainer);
}
service = _textView;
}
else if (serviceType == typeof(ITextContainer))
{
if (Document != null)
{
service = Document.StructuralCache.TextContainer as TextContainer;
}
}
return service;
}
/// <summary>
/// Returns service objects associated with this control.
/// This method should be called by IServiceProvider.GetService implementation
/// for DocumentPageView or subclasses.
/// </summary>
/// <param name="serviceType">Specifies the type of service object to get.</param>
protected object GetService(Type serviceType)
{
object service = null;
if (serviceType == null)
{
throw new ArgumentNullException("serviceType");
}
CheckDisposed();
// No service is available if the Content does not provide
// any services.
if (_documentPaginator != null && _documentPaginator is IServiceProvider)
{
// Following services are available:
// (1) TextView - wrapper for TextView exposed by the current page.
// (2) TextContainer - the service object is retrieved from DocumentPaginator.
if (serviceType == typeof(ITextView))
{
if (_textView == null)
{
ITextContainer tc = ((IServiceProvider)_documentPaginator).GetService(typeof(ITextContainer)) as ITextContainer;
if (tc != null)
{
_textView = new DocumentPageTextView(this, tc);
}
}
service = _textView;
}
else if (serviceType == typeof(TextContainer) || serviceType == typeof(ITextContainer))
{
service = ((IServiceProvider)_documentPaginator).GetService(serviceType);
}
}
return service;
}
