public void LibraryTreeItemsHostVisibilityConverterTest()
{
var converter = new LibraryTreeItemsHostVisibilityConverter();
var result = converter.Convert(null, null, null, null);
Assert.AreEqual(Visibility.Visible, result);
var NcVM = new NodeCategoryViewModel("");
result = converter.Convert(NcVM, null, null, null);
Assert.AreEqual(Visibility.Visible, result);
var RncVM = new ClassesNodeCategoryViewModel(NcVM);
result = converter.Convert(RncVM, null, null, null);
Assert.AreEqual(Visibility.Collapsed, result);
}
public void BrowserInternalElementToBoolConverterTest()
{
var converter = new NodeCategoryVMToBoolConverter();
var NcVM = new NodeCategoryViewModel("");
var RncVM = new RootNodeCategoryViewModel("");
var CncVM = new ClassesNodeCategoryViewModel(RncVM);
object result;
//1. Element is null.
//2. Element is NodeCategoryViewModel.
//2. Element is RootNodeCategoryViewModel.
//2. Element is ClassesNodeCategoryViewModel.
// 1 case
result = converter.Convert(null, null, null, null);
Assert.AreEqual(false, result);
// 2 case
result = converter.Convert(NcVM, null, null, null);
Assert.AreEqual(true, result);
// 3 case
result = converter.Convert(RncVM, null, null, null);
Assert.AreEqual(false, result);
// 4 case
result = converter.Convert(CncVM, null, null, null);
Assert.AreEqual(false, result);
}
public void ElementTypeToBoolConverterTest()
{
var converter = new ElementTypeToBoolConverter();
var NseVM = new NodeSearchElementViewModel(
new NodeModelSearchElement(new TypeLoadData(typeof(Nodes.Symbol))), null);
var NcVM = new NodeCategoryViewModel("");
var RncVM = new RootNodeCategoryViewModel("");
var CncVM = new ClassesNodeCategoryViewModel(RncVM);
object result;
//1. Element is null.
//2. Element is NodeSearchElement.
//3. Element is NodeCategoryViewModel.
//4. Element is RootNodeCategoryViewModel.
//5. Element is RootNodeCategoryViewModel with ClassesNodeCategoryViewModel.
// 1 case
result = converter.Convert(null, null, null, null);
Assert.AreEqual(false, result);
// 2 case
result = converter.Convert(NseVM, null, null, null);
Assert.AreEqual(false, result);
// 3 case
result = converter.Convert(NcVM, null, null, null);
Assert.AreEqual(true, result);
// 4 case
result = converter.Convert(RncVM, null, null, null);
Assert.AreEqual(true, result);
// 5 case
RncVM.SubCategories.Add(CncVM);
result = converter.Convert(RncVM, null, null, null);
Assert.AreEqual(false, result);
}
private void InsertEntryIntoNewCategory(
NodeCategoryViewModel category,
NodeSearchElementViewModel entry,
IEnumerable<string> categoryNames)
{
if (!categoryNames.Any())
{
AddEntryToExistingCategory(category, entry);
return;
}
// With the example of 'MyAssembly.MyNamespace.MyClass.Foo', 'path' would have been
// set to 'MyAssembly' here. The Select statement below would store two entries into
// 'newTargets' variable:
//
// NodeCategoryViewModel("MyAssembly.MyNamespace")
// NodeCategoryViewModel("MyAssembly.MyNamespace.MyClass")
//
var path = category.FullCategoryName;
var newTargets = categoryNames.Select(name =>
{
path = MakeFullyQualifiedName(path, name);
var cat = new NodeCategoryViewModel(name);
cat.FullCategoryName = path;
cat.Assembly = entry.Assembly;
return cat;
}).ToList();
// The last entry 'NodeCategoryViewModel' represents a class. For our example the
// entries in 'newTargets' are:
//
// NodeCategoryViewModel("MyAssembly.MyNamespace")
// NodeCategoryViewModel("MyAssembly.MyNamespace.MyClass")
//
// Since all class entries are contained under a 'ClassesNodeCategoryViewModel',
// we need to create a new 'ClassesNodeCategoryViewModel' instance, and insert it
// right before the class entry itself to get the following list:
//
// NodeCategoryViewModel("MyAssembly.MyNamespace")
// ClassesNodeCategoryViewModel("Classes")
// NodeCategoryViewModel("MyAssembly.MyNamespace.MyClass")
//
int indexToInsertClass = newTargets.Count - 1;
var classParent = indexToInsertClass > 0 ? newTargets[indexToInsertClass - 1] : category;
var newClass = new ClassesNodeCategoryViewModel(classParent);
newTargets.Insert(indexToInsertClass, newClass);
// Here, all the entries in 'newTargets' are added under 'MyAssembly' recursively,
// resulting in the following hierarchical structure:
//
// NodeCategoryViewModel("MyAssembly")
// NodeCategoryViewModel("MyAssembly.MyNamespace")
// ClassesNodeCategoryViewModel("Classes")
// NodeCategoryViewModel("MyAssembly.MyNamespace.MyClass")
//
foreach (var newTarget in newTargets)
{
category.SubCategories.Add(newTarget);
category = newTarget;
}
AddEntryToExistingCategory(category, entry);
}
/// <summary>
/// Insert a new search element under the category.
/// </summary>
/// <param name="entry">This could represent a function of a given
/// class. For example, 'MyAssembly.MyNamespace.MyClass.Foo'.</param>
/// <param name="categoryNames">A list of entries that make up the fully qualified
/// class name that contains function 'Foo', e.g. 'MyAssembly.MyNamespace.MyClass'.
/// </param>
internal void InsertEntry(NodeSearchElementViewModel entry, IEnumerable<string> categoryNames)
{
var nameStack = new Stack<string>(categoryNames.Reverse());
var target = libraryRoot;
string fullyQualifiedCategoryName = "";
ClassesNodeCategoryViewModel targetClass = null;
while (nameStack.Any())
{
var next = nameStack.Pop();
fullyQualifiedCategoryName = MakeFullyQualifiedName(fullyQualifiedCategoryName, next);
var categories = target.SubCategories;
NodeCategoryViewModel targetClassSuccessor = null;
var newTarget = categories.FirstOrDefault(c =>
{
// Each path has one class. We should find and save it.
if (c is ClassesNodeCategoryViewModel)
{
targetClass = c as ClassesNodeCategoryViewModel;
// As soon as ClassesNodeCategoryViewModel is found we should search
// through all it classes and save result.
targetClassSuccessor = c.SubCategories.FirstOrDefault(c2 => c2.Name == next);
return targetClassSuccessor != null;
}
return c.Name == next;
});
if (newTarget == null)
{
// For the first iteration, this would be 'MyAssembly', and the second iteration 'MyNamespace'.
var targetIsRoot = target == libraryRoot;
newTarget = targetIsRoot ? new RootNodeCategoryViewModel(next) : new NodeCategoryViewModel(next);
newTarget.FullCategoryName = fullyQualifiedCategoryName;
newTarget.Assembly = entry.Assembly;
// Situation when we to add only one new category and item as it child.
// New category should be added to existing ClassesNodeCategoryViewModel.
// Make notice: ClassesNodeCategoryViewModel is always first item in
// all subcategories.
if (nameStack.Count == 0 && !target.IsClassButton &&
target.SubCategories[0] is ClassesNodeCategoryViewModel)
{
target.SubCategories[0].SubCategories.Add(newTarget);
AddEntryToExistingCategory(newTarget, entry);
return;
}
// We are here when target is the class. New category should be added
// as child of it. So class will turn into usual category.
// Here we are take class, remove it from ClassesNodeCategoryViewModel
// and attach to it parrent.
if (targetClass != null)
{
if (targetClass.SubCategories.Remove(target))
targetClass.Parent.SubCategories.Add(target);
// Delete empty classes container.
if (targetClass.IsClassButton)
targetClass.Parent.SubCategories.RemoveAt(0);
targetClass.Dispose();
}
// Situation when we need to add only one new category and item.
// Before adding of it we need create new ClassesNodeCategoryViewModel
// as soon as new category will be a class.
if (nameStack.Count == 0 && !targetIsRoot)
{
targetClass = new ClassesNodeCategoryViewModel(target);
target.SubCategories.Insert(0,targetClass);
target.SubCategories[0].SubCategories.Add(newTarget);
AddEntryToExistingCategory(newTarget, entry);
return;
}
target.InsertSubCategory(newTarget);
// Proceed to insert the new entry under 'newTarget' category with the remaining
// name stack. In the first iteration this would have been 'MyNamespace.MyClass'.
InsertEntryIntoNewCategory(newTarget, entry, nameStack);
return;
}
// If we meet ClassesNodecategoryViewModel during the search of newTarget,
// next newTarget is specified in targetClassSuccessor.
if (targetClassSuccessor != null)
target = targetClassSuccessor;
else
target = newTarget;
}
AddEntryToExistingCategory(target, entry);
}
private static void InsertClassesIntoTree(ObservableCollection<NodeCategoryViewModel> tree)
{
foreach (var item in tree)
{
var classes = item.SubCategories.Where(cat => cat.IsClassButton).ToList();
foreach (var item2 in classes)
item.SubCategories.Remove(item2);
InsertClassesIntoTree(item.SubCategories);
if (classes.Count == 0)
continue;
var container = new ClassesNodeCategoryViewModel(item);
container.SubCategories.AddRange(classes);
item.SubCategories.Insert(0, container);
}
}
