// <summary>
// Returns a SelectionPath pointing to the first visible category in the list
// or null if no such category exists.
// </summary>
// <param name="categoryList">CategoryList for reference</param>
// <returns>SelectionPath pointing to the first visible category in the list
// or null if no such category exists.</returns>
public SelectionPath GetDefaultSelectionPath(CategoryList categoryList)
{
foreach (CategoryEntry categoryEntry in categoryList)
{
CategoryContainer container = categoryList.FindCategoryEntryVisual(categoryEntry);
if (container != null && container.Visibility == Visibility.Visible)
{
return(CategoryContainerSelectionPathInterpreter.Instance.ConstructSelectionPath(categoryEntry.CategoryName, false));
}
}
return(null);
}
// ISelectionPathInterpreter Members
public DependencyObject ResolveSelectionPath(CategoryList root, SelectionPath path, out bool pendingGeneration)
{
pendingGeneration = false;
if (path == null || !string.Equals(PathTypeId, path.PathTypeId))
{
Debug.Fail("Invalid SelectionPath specified.");
return(null);
}
if (root == null)
{
Debug.Fail("No CategoryList specified.");
return(null);
}
string[] pathValues = path.Path.Split(',');
string categoryName = PersistedStateUtilities.Unescape(pathValues[0]);
bool isAdvanced = pathValues.Length == 2;
CategoryEntry category = root.FindCategory(categoryName);
if (category == null)
{
return(null);
}
DependencyObject categoryVisual = root.FindCategoryEntryVisual(category);
if (categoryVisual == null)
{
return(null);
}
DependencyObject searchStart;
// For basic section, start at the root.
// For advanced section, start at the advanced expander.
// The next SelectionStop in both cases will be the section header SelectionStop.
if (!isAdvanced)
{
searchStart = categoryVisual;
}
else
{
searchStart = VisualTreeUtils.GetNamedChild <FrameworkElement>(categoryVisual, "PART_AdvancedExpander");
}
return(PropertySelection.FindNeighborSelectionStop <DependencyObject>(searchStart, SearchDirection.Next));
}
// ISelectionPathInterpreter Members
public DependencyObject ResolveSelectionPath(CategoryList root, SelectionPath path, out bool pendingGeneration)
{
pendingGeneration = false;
if (path == null || !string.Equals(PathTypeId, path.PathTypeId))
{
Debug.Fail("Invalid SelectionPath specified.");
return null;
}
if (root == null)
{
Debug.Fail("No CategoryList specified.");
return null;
}
string[] pathValues = path.Path.Split(',');
string categoryName = PersistedStateUtilities.Unescape(pathValues[0]);
bool isAdvanced = pathValues.Length == 2;
CategoryEntry category = root.FindCategory(categoryName);
if (category == null)
{
return null;
}
DependencyObject categoryVisual = root.FindCategoryEntryVisual(category);
if (categoryVisual == null)
{
return null;
}
DependencyObject searchStart;
// For basic section, start at the root.
// For advanced section, start at the advanced expander.
// The next SelectionStop in both cases will be the section header SelectionStop.
if (!isAdvanced)
{
searchStart = categoryVisual;
}
else
{
searchStart = VisualTreeUtils.GetNamedChild<FrameworkElement>(categoryVisual, "PART_AdvancedExpander");
}
return PropertySelection.FindNeighborSelectionStop<DependencyObject>(searchStart, SearchDirection.Next);
}
// <summary>
// Returns a SelectionPath pointing to the first visible category in the list
// or null if no such category exists.
// </summary>
// <param name="categoryList">CategoryList for reference</param>
// <returns>SelectionPath pointing to the first visible category in the list
// or null if no such category exists.</returns>
public SelectionPath GetDefaultSelectionPath(CategoryList categoryList)
{
foreach (CategoryEntry categoryEntry in categoryList)
{
CategoryContainer container = categoryList.FindCategoryEntryVisual(categoryEntry);
if (container != null && container.Visibility == Visibility.Visible)
{
return CategoryContainerSelectionPathInterpreter.Instance.ConstructSelectionPath(categoryEntry.CategoryName, false);
}
}
return null;
}