// 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 editorTypeName = path.Path;
if (string.IsNullOrEmpty(editorTypeName))
{
Debug.Fail("Invalid SelectionPath specified.");
return(null);
}
ModelCategoryEntry category;
CategoryEditor editor = root.FindCategoryEditor(editorTypeName, out category);
if (editor == null || category == null)
{
return(null);
}
return(root.FindCategoryEditorVisual(editor, category, out pendingGeneration));
}
public CategorySelectionStop(CiderCategoryContainer parent, bool isAdvanced)
{
if (parent == null)
{
throw FxTrace.Exception.ArgumentNull("parent");
}
if (parent.Category == null)
{
throw FxTrace.Exception.ArgumentNull("parent.Category");
}
_parent = parent;
_expansionProperty = isAdvanced ? Blend.CategoryContainer.AdvancedSectionPinnedProperty : Blend.CategoryContainer.ExpandedProperty;
_selectionPath = CategoryContainerSelectionPathInterpreter.Instance.ConstructSelectionPath(parent.Category.CategoryName, isAdvanced);
_description = isAdvanced ?
string.Format(
CultureInfo.CurrentCulture,
System.Activities.Presentation.Internal.Properties.Resources.PropertyEditing_SelectionStatus_AdvancedCategory,
parent.Category.CategoryName) :
string.Format(
CultureInfo.CurrentCulture,
System.Activities.Presentation.Internal.Properties.Resources.PropertyEditing_SelectionStatus_Category,
parent.Category.CategoryName);
}
// 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 editorTypeName = path.Path;
if (string.IsNullOrEmpty(editorTypeName))
{
Debug.Fail("Invalid SelectionPath specified.");
return null;
}
ModelCategoryEntry category;
CategoryEditor editor = root.FindCategoryEditor(editorTypeName, out category);
if (editor == null || category == null)
{
return null;
}
return root.FindCategoryEditorVisual(editor, category, out pendingGeneration);
}
// 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>
// Attempt to resolve the given SelectionPath into the corresponding visual in the
// specified CategoryList control.
// </summary>
// <param name="root">CategoryList control instance to look in</param>
// <param name="path">SelectionPath to resolve</param>
// <returns>Corresponding visual, if found, null otherwise</returns>
public static DependencyObject ResolveSelectionPath(CategoryList root, SelectionPath path, out bool pendingGeneration)
{
pendingGeneration = false;
if (root == null || path == null)
{
return null;
}
ISelectionPathInterpreter interpreter;
if (!_interpreters.TryGetValue(path.PathTypeId, out interpreter))
{
return null;
}
return interpreter.ResolveSelectionPath(root, path, out pendingGeneration);
}
// <summary>
// Attempt to resolve the given SelectionPath into the corresponding visual in the
// specified CategoryList control.
// </summary>
// <param name="root">CategoryList control instance to look in</param>
// <param name="path">SelectionPath to resolve</param>
// <returns>Corresponding visual, if found, null otherwise</returns>
public static DependencyObject ResolveSelectionPath(CategoryList root, SelectionPath path, out bool pendingGeneration)
{
pendingGeneration = false;
if (root == null || path == null)
{
return(null);
}
ISelectionPathInterpreter interpreter;
if (!_interpreters.TryGetValue(path.PathTypeId, out interpreter))
{
return(null);
}
return(interpreter.ResolveSelectionPath(root, path, out pendingGeneration));
}
// 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);
}
public CategorySelectionStop(CiderCategoryContainer parent, bool isAdvanced)
{
if (parent == null)
{
throw FxTrace.Exception.ArgumentNull("parent");
}
if (parent.Category == null)
{
throw FxTrace.Exception.ArgumentNull("parent.Category");
}
_parent = parent;
_expansionProperty = isAdvanced ? Blend.CategoryContainer.AdvancedSectionPinnedProperty : Blend.CategoryContainer.ExpandedProperty;
_selectionPath = CategoryContainerSelectionPathInterpreter.Instance.ConstructSelectionPath(parent.Category.CategoryName, isAdvanced);
_description = isAdvanced ?
string.Format(
CultureInfo.CurrentCulture,
System.Activities.Presentation.Internal.Properties.Resources.PropertyEditing_SelectionStatus_AdvancedCategory,
parent.Category.CategoryName) :
string.Format(
CultureInfo.CurrentCulture,
System.Activities.Presentation.Internal.Properties.Resources.PropertyEditing_SelectionStatus_Category,
parent.Category.CategoryName);
}
private void SelectPropertyByPathOnIdle()
{
SelectionPath selectionPath =
new SelectionPath(PropertySelectionPathInterpreter.PropertyPathTypeId, propertyPathToSelect);
bool pendingGeneration;
bool result = this._categoryList.SetSelectionPath(selectionPath, out pendingGeneration);
if (!result && pendingGeneration)
{
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, new MethodInvoker(SelectPropertyByPathOnIdle));
}
}
// 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(',');
if (pathValues.Length < 1)
{
Debug.Fail("Invalid SelectionPath specified.");
return null;
}
//
// Note: By the time this method gets called, all the visuals should have been expanded
// and rendered. Hence, if we can't find a visual in the visual tree, it doesn't exist
// and we shouldn't worry about trying to expand some parent visual and waiting for it
// to render.
//
ModelCategoryEntry parentCategory;
PropertyEntry currentProperty = root.FindPropertyEntry(PersistedStateUtilities.Unescape(pathValues[0]), out parentCategory);
PropertyContainer currentContainer = root.FindPropertyEntryVisual(currentProperty, parentCategory, out pendingGeneration);
DependencyObject lastFoundContainer = currentContainer;
int pathIndex = 1;
while (currentContainer != null && pathIndex < pathValues.Length)
{
SubPropertyEditor subPropertyEditor = VisualTreeUtils.GetTemplateChild<SubPropertyEditor>(currentContainer);
if (subPropertyEditor == null)
{
break;
}
// If the subpropertyEditor is not expanded and is expandable, we won't be able to get the target property's visual
// element, Expand it, set pendingGeneration to True, and return null. Expect the caller to call again.
if (subPropertyEditor.IsExpandable && !subPropertyEditor.IsExpanded)
{
subPropertyEditor.IsExpanded = true;
pendingGeneration = true;
return null;
}
PropertyEntry property = subPropertyEditor.FindSubPropertyEntry(PersistedStateUtilities.Unescape(pathValues[pathIndex]));
if (property == null)
{
break;
}
currentContainer = subPropertyEditor.FindSubPropertyEntryVisual(property);
lastFoundContainer = currentContainer ?? lastFoundContainer;
pathIndex++;
}
if (lastFoundContainer == null)
{
return null;
}
return lastFoundContainer;
}
// 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(',');
if (pathValues.Length < 1)
{
Debug.Fail("Invalid SelectionPath specified.");
return(null);
}
//
// Note: By the time this method gets called, all the visuals should have been expanded
// and rendered. Hence, if we can't find a visual in the visual tree, it doesn't exist
// and we shouldn't worry about trying to expand some parent visual and waiting for it
// to render.
//
ModelCategoryEntry parentCategory;
PropertyEntry currentProperty = root.FindPropertyEntry(PersistedStateUtilities.Unescape(pathValues[0]), out parentCategory);
PropertyContainer currentContainer = root.FindPropertyEntryVisual(currentProperty, parentCategory, out pendingGeneration);
DependencyObject lastFoundContainer = currentContainer;
int pathIndex = 1;
while (currentContainer != null && pathIndex < pathValues.Length)
{
SubPropertyEditor subPropertyEditor = VisualTreeUtils.GetTemplateChild <SubPropertyEditor>(currentContainer);
if (subPropertyEditor == null)
{
break;
}
// If the subpropertyEditor is not expanded and is expandable, we won't be able to get the target property's visual
// element, Expand it, set pendingGeneration to True, and return null. Expect the caller to call again.
if (subPropertyEditor.IsExpandable && !subPropertyEditor.IsExpanded)
{
subPropertyEditor.IsExpanded = true;
pendingGeneration = true;
return(null);
}
PropertyEntry property = subPropertyEditor.FindSubPropertyEntry(PersistedStateUtilities.Unescape(pathValues[pathIndex]));
if (property == null)
{
break;
}
currentContainer = subPropertyEditor.FindSubPropertyEntryVisual(property);
lastFoundContainer = currentContainer ?? lastFoundContainer;
pathIndex++;
}
if (lastFoundContainer == null)
{
return(null);
}
return(lastFoundContainer);
}
