/// <summary>
/// Creates an object from the given URI.
/// </summary>
/// <param name="uri">The URI that describes an object to be created.</param>
/// <param name="attachmentSelector">The selector for acccess to attached to the given URI objects.</param>
/// <returns>The object created from the given URI.</returns>
public object Resolve(Uri uri, UriAttachmentSelector attachmentSelector)
{
var uriBuilder = new ShellUriBuilder(uri);
var title = uriBuilder.Parameters["title"] ?? uri.ToString();
return(this._entitledItemFactory(title));
}
public IUriPlacementConnector Resolve(object resolved, Uri uri, UriAttachmentSelector attachmentSelector)
{
Contract.Requires <ArgumentNullException>(resolved != null);
Contract.Requires <ArgumentNullException>(uri != null);
Contract.Requires <ArgumentNullException>(attachmentSelector != null);
return(default(IUriPlacementConnector));
}
public object Resolve(Uri uri, UriAttachmentSelector attachmentSelector)
{
Contract.Requires <ArgumentNullException>(uri != null);
Contract.Requires <ArgumentNullException>(attachmentSelector != null);
Contract.Ensures(Contract.Result <object>() != null);
return(default(object));
}
/// <summary>
/// Builds an URI, where parameter's values are replaced with generated identifiers of attached objects
/// and provides a selector for getting this objects.
/// </summary>
/// <param name="uri">When this method returns, contains the URI, where parameter's values are replaced
/// with generated identifiers of attached objects </param>
/// <param name="attachmentSelector">When this method returns, contains the selector for getting objects
/// attached to the URI with identifiers.</param>
private void EmbedAttachments(out Uri uri, out UriAttachmentSelector attachmentSelector)
{
if (this._attachments.Length == 0)
{
attachmentSelector = id => null;
uri = this._unresolvedUri;
return;
}
var attachmentDictionary = new HybridDictionary(this._attachments.Length);
var idGenerator = new Random();
// Replace parameter's values in the URI with identifiers.
var uriBuilder = new ShellUriBuilder(this._unresolvedUri);
for (int i = 0; i < uriBuilder.Parameters.Count; i++)
{
var value = uriBuilder.Parameters[i];
// Detect object's placeholder by the string "{index}",
// where index is integer from the attachment number's range.
if (value.Length <= 2)
{
continue;
}
if (value[0] != '{')
{
continue;
}
if (value[value.Length - 1] != '}')
{
continue;
}
value = value.Substring(1, value.Length - 2);
int attachmentIndex;
if (int.TryParse(value, out attachmentIndex))
{
if (attachmentIndex >= this._attachments.Length)
{
continue;
}
value = idGenerator.Next().ToString();
attachmentDictionary[value] = this._attachments[attachmentIndex];
}
uriBuilder.Parameters[uriBuilder.Parameters.AllKeys[i]] = value;
}
attachmentSelector = id => id != null ? attachmentDictionary[id] : null;
uri = uriBuilder.Uri;
}
public IUriPlacementConnector Resolve(object resolved, Uri uri, UriAttachmentSelector attachmentSelector)
{
var builder = new ShellUriBuilder(uri);
if (builder.Placement == "figures")
{
return(this._figurePlacementConnector);
}
return(null);
}
/// <summary>
/// Determines an object's placement from the given URI.
/// </summary>
/// <param name="resolved">The object to be placed with the given URI.</param>
/// <param name="uri">The URI used to determine an object's placement.</param>
/// <param name="attachmentSelector">The selector for acccess to attached to the given URI objects.</param>
/// <returns>The <see cref="IUriPlacementConnector"/> that allows to connect the given object to the
/// user interface, if the placement was determined successfully; otherwise null.</returns>
public IUriPlacementConnector Resolve(object resolved, Uri uri, UriAttachmentSelector attachmentSelector)
{
var builder = new ShellUriBuilder(uri);
if (builder.Placement == "external" && resolved is Process)
{
return(this);
}
return(null);
}
/// <summary>
/// Creates an object from the given URI.
/// </summary>
/// <param name="uri">The URI that describes an object to be created.</param>
/// <param name="attachmentSelector">The selector for acccess to attached to the given URI objects.</param>
/// <returns>The object created from the given URI.</returns>
public object Resolve(Uri uri, UriAttachmentSelector attachmentSelector)
{
var builder = new ShellUriBuilder(uri);
var fileName = builder.Parameters["fileName"];
if (string.IsNullOrWhiteSpace(fileName))
{
return(null);
}
return(new Process
{
StartInfo = new ProcessStartInfo(fileName),
});
}
/// <summary>
/// Gets the object responsible for the given URI's placement.
/// </summary>
/// <param name="uri">The URI of the object being resolved.</param>
/// <param name="attachmentSelector">The selector for objects attached to the URI.</param>
/// <param name="resolved">The object resolved via the URI.</param>
/// <returns><see cref="IUriPlacementConnector"/> for connecting the object to an user interface.</returns>
private IUriPlacementConnector ResolvePlacement(Uri uri, UriAttachmentSelector attachmentSelector, object resolved)
{
var placementConnector = this._uriResolutionCustomization
.PlacementResolvers
.Select(r => r.Resolve(resolved, uri, attachmentSelector))
.FirstOrDefault(c => c != null);
if (placementConnector != null)
{
return(placementConnector);
}
throw new UriResolutionException(
uri,
string.Format(Properties.Resources.UriPlacementNotFound, typeof(IUriPlacementResolver).Name));
}
/// <summary>
/// Gets the object responsible for resolution of the given URI.
/// </summary>
/// <param name="uri">The URI of the object being resolved.</param>
/// <param name="attachmentSelector">The selector for objects attached to the URI.</param>
/// <returns>The object responsible for resolution of the given URI. </returns>
private object ResolveModuleItem(Uri uri, UriAttachmentSelector attachmentSelector)
{
var builder = new ShellUriBuilder(uri);
var moduleItemResolverKey = new UriModuleItemResolverKey(builder.Module, builder.Item);
IUriModuleItemResolver resolver;
if (this._uriResolutionCustomization.ModuleItemResolvers.TryGetValue(moduleItemResolverKey, out resolver))
{
return(resolver.Resolve(uri, attachmentSelector));
}
throw new UriResolutionException(
uri,
string.Format(Properties.Resources.UriModuleItemResolverNotFound, typeof(IUriModuleItemResolver).Name));
}
public object Resolve(Uri uri, UriAttachmentSelector attachmentSelector)
{
return(_factory());
}
public object Resolve(Uri uri, UriAttachmentSelector attachmentSelector)
{
return(this._squareViewModelFactory());
}
