public static void CheckSubTree(DependencyObject dObject, DObjectChecker checker, bool failIfNothingFound)
{
VisualTreeEnumerator visualTreeEnumerator = new VisualTreeEnumerator(dObject);
DependencyObjectCheckerEnumerator dObjectCheckerEnumerator = new DependencyObjectCheckerEnumerator(checker);
dObjectCheckerEnumerator.MoveNext();
while (visualTreeEnumerator.MoveNext())
{
if (dObjectCheckerEnumerator.Current.CheckElement(visualTreeEnumerator.Current, visualTreeEnumerator.Level))
{
DObjectChecker parent = (DObjectChecker)dObjectCheckerEnumerator.CurrentParent;
if (parent != null)
{
Assert.IsTrue(IsParent(dObjectCheckerEnumerator.Current.Element, parent.Element));
}
if (!dObjectCheckerEnumerator.MoveNext())
{
checker.CheckLevels();
return;
}
}
}
if (failIfNothingFound)
{
Assert.Fail("Element not found: " + dObjectCheckerEnumerator.Current);
}
}
/// <summary>
/// Looks for a shared application's AppBar. Assuming the following structure of the visual tree:
/// this_Page ..->..Frame..->..Page. (according to MS guidelines)
/// topBar - true to obtain top bar and false to obtain bottom bar
/// </summary>
private Panel FindGroupPanel(string groupName)
{
Frame frame = this.AssociatedObject.Frame;
if (frame == null)
{
throw new InvalidOperationException("Cannot find shared AppBar. Please make sure that the view is in Frame.");
}
Page rootPage = VisualTreeEnumerator.FindParentElement <Page>(frame);
if (rootPage == null)
{
throw new InvalidOperationException("Cannot find shared AppBar. Please make sure that the view is in frame which in turn in a root page.");
}
Panel result = null;
// Try find a panel with specified name
if (rootPage.BottomAppBar != null)
{
result = rootPage.FindName(groupName) as Panel;
}
if (result == null)
{
throw new InvalidOperationException("Cannot find group in shared AppBar.");
}
return(result);
}
public void CheckSubTree(DependencyObject dObject)
{
VisualTreeEnumerator visualTreeEnumerator = new VisualTreeEnumerator(dObject);
DependencyObjectCheckerEnumerator dObjectCheckerEnumerator = new DependencyObjectCheckerEnumerator(this);
dObjectCheckerEnumerator.MoveNext();
while (visualTreeEnumerator.MoveNext())
{
this.CheckElement(visualTreeEnumerator.Current, visualTreeEnumerator.Level);
}
}
IScrollInfo GetScrollInfo()
{
VisualTreeEnumerator enumerator = new VisualTreeEnumerator(grid);
while (enumerator.MoveNext())
{
if (enumerator.Current is DataPresenter)
{
return(enumerator.Current as IScrollInfo);
}
}
return(null);
}
public static void ForEachElement(FrameworkElement treeRoot, ElementHandler elementHandler)
{
VisualTreeEnumerator en = new VisualTreeEnumerator(treeRoot);
while (en.MoveNext())
{
FrameworkElement element = en.Current as FrameworkElement;
if (element != null)
{
elementHandler(element);
}
}
}
public DockLayoutManager FindDockLayoutManager()
{
VisualTreeEnumerator e = new VisualTreeEnumerator(this);
while (e.MoveNext())
{
DockLayoutManager manager = e.Current as DockLayoutManager;
if (manager != null)
{
return(manager);
}
}
return(null);
}
public static FrameworkElement FindElement(FrameworkElement treeRoot, System.Predicate <FrameworkElement> predicate)
{
VisualTreeEnumerator visualTreeEnumerator = new VisualTreeEnumerator(treeRoot);
while (visualTreeEnumerator.MoveNext())
{
FrameworkElement frameworkElement = visualTreeEnumerator.Current as FrameworkElement;
if (frameworkElement != null && predicate(frameworkElement))
{
return(frameworkElement);
}
}
return(null);
}
private void ExecuteForFoundElements(DependencyObject element, Action <ILayoutSerializer, DependencyObject, string> action)
{
var enumerator = new VisualTreeEnumerator(element);
var ignoredParentElements = new List <DependencyObject>();
while (enumerator.MoveNext())
{
//Get the current control
DependencyObject currentElement = enumerator.Current;
string currentElementName = currentElement is FrameworkElement ?
((FrameworkElement)currentElement).Name :
string.Empty;
//See if we should ignore this control
if (LayoutSettings.GetIgnoreChildControls(currentElement))
{
LogTo.Debug("Ignoring all children of this control {0} (Name: {1}).", currentElement.GetType(), currentElementName);
ignoredParentElements.Add(currentElement);
continue;
}
//See if there is an serializer for our type
var serializer = this._layoutSerializers.FirstOrDefault(f => f.ControlType.IsInstanceOfType(currentElement));
if (serializer == null)
{
continue;
}
//See if any of our parents was ignored
if (enumerator.GetVisualParents().Any(ignoredParentElements.Contains))
{
LogTo.Debug("Ignoring this control {0} (Name: {1}) because a parent was ignored.", currentElement.GetType(), currentElementName);
continue;
}
//Get the control name
string controlName = LayoutSettings.GetLayoutControlName(currentElement);
if (string.IsNullOrWhiteSpace(controlName))
{
LogTo.Debug("Wanted to work with layout of {0} (Name: {1}) but it has no name.", currentElement.GetType(), currentElementName);
continue;
}
//Execute the actual action
action(serializer, currentElement, controlName);
}
}
internal static DependencyObject FindElementCore(DependencyObject treeRoot, Predicate <DependencyObject> predicate)
{
VisualTreeEnumerator en = new VisualTreeEnumerator(treeRoot);
while (en.MoveNext())
{
DependencyObject element = en.Current;
if (element != null && predicate(element))
{
return(element);
}
}
return(null);
}
protected virtual void OnLoaded(object sender, RoutedEventArgs e)
{
VisualTreeEnumerator en = new VisualTreeEnumerator(this);
while (en.MoveNext())
{
BarManager _manager = en.Current as BarManager;
if (_manager != null)
{
DemoModuleControl.DemoContent = _manager;
Manager = _manager;
break;
}
}
}
int GetSelectionBarElementCount(SchedulerControl scheduler)
{
List <FrameworkElement> result = new List <FrameworkElement>();
VisualTreeEnumerator treeWalker = new VisualTreeEnumerator(scheduler);
while (treeWalker.MoveNext())
{
FrameworkElement fe = treeWalker.Current as FrameworkElement;
if (fe == null)
{
continue;
}
if (IsRootSelectionBarCell(fe, result))
{
result.Add(fe);
}
}
return(result.Count);
}
protected override void RaiseBeforeModuleDisappear()
{
base.RaiseBeforeModuleDisappear();
DisposeList = new List <DockLayoutManager>();
VisualTreeEnumerator e = new VisualTreeEnumerator(this);
while (e.MoveNext())
{
DockLayoutManager manager = e.Current as DockLayoutManager;
if (manager != null)
{
DisposeList.Add(manager);
manager.Visibility = Visibility.Collapsed;
foreach (FloatGroup fGroup in manager.FloatGroups)
{
fGroup.IsOpen = false;
}
}
}
}
/// <summary>
/// Processes group of items (actually selected or deselected), updates row/col spans and put the items into specific states
/// </summary>
private void ProcessItemsCollection(IList <object> items, GridView gridView, string newStateName, int rowSpan, int colSpan)
{
VariableSizedWrapGrid vswGrid = null;
foreach (object item in items)
{
GridViewItem gridViewItem = gridView.ItemContainerGenerator.ContainerFromItem(item) as GridViewItem;
if (gridViewItem != null)
{
VariableSizedWrapGrid.SetRowSpan(gridViewItem, rowSpan);
VariableSizedWrapGrid.SetColumnSpan(gridViewItem, colSpan);
// Update visual state
if (newStateName != null && this.TemplateRootElementName != null)
{
DependencyObject descendant = VisualTreeEnumerator.FindDescendantByName(gridViewItem, this.TemplateRootElementName, false);
if (descendant != null)
{
ExtendedVisualStateManager.GoToElementState(descendant as Grid, newStateName, true);
}
}
if (vswGrid == null)
{
vswGrid = VisualTreeHelper.GetParent(gridViewItem) as VariableSizedWrapGrid;
}
}
}
// Update panel if some of items were updated
if (vswGrid != null)
{
vswGrid.InvalidateMeasure();
}
}
