/// <summary>
/// Recursively searches the specified directory tree for XML files which define UPF views and retrieves the XML elements which define those views.
/// </summary>
/// <param name="root">The root directory from which the recursive search began.</param>
/// <param name="directory">The root of the directory tree to search.</param>
/// <returns>A collection of <see cref="DataSourceDefinition"/> instances which represent UPF view definitions.</returns>
private static IEnumerable <DataSourceDefinition> RecursivelySearchForViews(String root, String directory)
{
var result = new List <DataSourceDefinition>();
var files = Directory.GetFiles(directory, "*.xml");
foreach (var file in files)
{
try
{
var name = $"__Wrapper_{Path.GetFileNameWithoutExtension(file)}_{Guid.NewGuid():N}";
var definition = CreateDataSourceDefinitionFromFile(null, name, file);
if (definition != null)
{
UvmlLoader.AddUvmlAnnotations(
definition.Value.DataSourceWrapperName, definition.Value.Definition);
result.Add(definition.Value);
}
}
catch (XmlException) { continue; }
}
var subdirs = Directory.GetDirectories(directory);
foreach (var subdir in subdirs)
{
result.AddRange(RecursivelySearchForViews(root, subdir));
}
return(result);
}
/// <summary>
/// Loads the control's component root from the control's associated template.
/// </summary>
private void LoadComponentRoot()
{
if (componentRoot != null)
{
throw new InvalidOperationException(PresentationStrings.ComponentRootAlreadyLoaded);
}
this.ComponentRoot = UvmlLoader.LoadComponentTemplate(this);
}
/// <summary>
/// Gets a collection of <see cref="DataSourceDefinition"/> instances for any component templates which
/// are currently registered with the Ultraviolet Presentation Foundation.
/// </summary>
/// <returns>A collection of <see cref="DataSourceDefinition"/> instances which represent UPF component template definitions.</returns>
private static IEnumerable<DataSourceDefinition> RetrieveTemplateDefinitions(IExpressionCompilerState state)
{
if (state.ComponentTemplateManager == null)
return Enumerable.Empty<DataSourceDefinition>();
var templateDefs = from template in state.ComponentTemplateManager
select DataSourceDefinition.FromComponentTemplate(template.Key, template.Value.Root.Element("View"));
var templateDefsList = templateDefs.ToList();
foreach (var templateDef in templateDefsList)
UvmlLoader.AddUvmlAnnotations(templateDef.DataSourceWrapperName, templateDef.Definition);
return templateDefsList;
}
/// <summary>
/// Loads the control's component root from the control's associated template.
/// </summary>
private void LoadComponentRoot()
{
if (componentRoot != null)
{
throw new InvalidOperationException(PresentationStrings.ComponentRootAlreadyLoaded);
}
var template = Ultraviolet.GetUI().GetPresentationFoundation().ComponentTemplates.Get(this);
if (template == null)
{
return;
}
this.ComponentRoot = UvmlLoader.LoadComponentTemplate(this, template);
}
