public void ResourceInheritanceTest()
{
object value;
FrameworkElement root = new FrameworkElement();
root.Resources = new ResourceDictionary();
root.Resources.Add("key1", "value1");
Assert.IsTrue(root.TryGetResource("key1", out value));
Assert.AreEqual("value1", value);
FrameworkElement child1 = new FrameworkElement();
root.AddVisualChild(child1);
root.AddLogicalChild(child1);
Assert.IsTrue(child1.TryGetResource("key1", out value));
Assert.AreEqual("value1", value);
child1.Resources = new ResourceDictionary();
child1.Resources.Add("key1", "value2");
FrameworkElement child2 = new FrameworkElement();
child1.AddVisualChild(child2);
Assert.IsTrue(child2.TryGetResource("key1", out value));
Assert.AreEqual("value2", value);
root.AddLogicalChild(child2);
Assert.IsTrue(child2.TryGetResource("key1", out value));
Assert.AreEqual("value1", value);
}
public void ContainingNameScopeTest()
{
FrameworkElement logicalParent = new FrameworkElement();
FrameworkElement visualParent = new FrameworkElement();
FrameworkElement child = new FrameworkElement();
NameScope logicalNameScope = new NameScope();
NameScope.SetNameScope(logicalParent, logicalNameScope);
NameScope visualNameScope = new NameScope();
NameScope.SetNameScope(visualParent, visualNameScope);
Freezable value = new Freezable();
Freezable subValue = new Freezable();
// visual / context tree: logicalParent -> visualParent -> child -> value -> subValue
logicalParent.AddVisualChild(visualParent);
visualParent.AddVisualChild(child);
child.SetValue(ValueProperty, value);
value.SetValue(ValueProperty, subValue);
// logical tree: logicalParent -> child
logicalParent.AddLogicalChild(child);
Assert.AreEqual(logicalNameScope, NameScope.GetContainingNameScope(subValue));
}
public void FindAncestorSourceObserverTest()
{
FrameworkElement parent = new FrameworkElement();
FrameworkElement child = new FrameworkElement();
parent.AddVisualChild(child);
Freezable value = new Freezable();
FindAncestorSourceObserver observer1 = new FindAncestorSourceObserver(value, typeof(FrameworkElement), 0);
FindAncestorSourceObserver observer2 = new FindAncestorSourceObserver(value, typeof(FrameworkElement), 2);
FindAncestorSourceObserver observer3 = new FindAncestorSourceObserver(value, null, 2);
Assert.AreEqual(ObservableValue.UnsetValue, observer1.Value);
Assert.AreEqual(ObservableValue.UnsetValue, observer2.Value);
Assert.AreEqual(ObservableValue.UnsetValue, observer3.Value);
child.SetValue(ValueProperty, value);
Assert.AreEqual(child, observer1.Value);
Assert.AreEqual(parent, observer2.Value);
Assert.AreEqual(parent, observer3.Value);
child.SetValue(ValueProperty, null);
Assert.AreEqual(ObservableValue.UnsetValue, observer1.Value);
Assert.AreEqual(ObservableValue.UnsetValue, observer2.Value);
Assert.AreEqual(ObservableValue.UnsetValue, observer3.Value);
}
public void AddTab(TabItem tabItem)
{
_headerContainer.AddVisualChild(tabItem._headerElement);
AddVisualChild(tabItem._bodyElement);
tabItem._headerElement._root.Click(() => { ActivateTab(tabItem); });
}
void AfterAddChildElement(FrameworkElement element)
{
if (LogicalChilderenCount == 1)
{
Left.AddVisualChild(element);
}
else
{
Right.AddVisualChild(element);
}
}
public void ResourceReferenceExpressionBaseTest()
{
FrameworkElement root = new FrameworkElement();
FrameworkElement child1 = new FrameworkElement();
FrameworkElement child2 = new FrameworkElement();
child1.AddVisualChild(child2);
int testValueChanged = 0;
child2.PropertyChanged += (sender, e) => testValueChanged += e.Property == TestValueProperty ? 1 : 0;
child2.SetValue(TestValueProperty, new ResourceReferenceExpressionProvider("key1"));
Assert.AreEqual("default", child2.GetValue(TestValueProperty));
Assert.AreEqual(0, testValueChanged);
root.Resources = new ResourceDictionary();
root.Resources.Add("key1", "value1");
root.AddVisualChild(child1);
Assert.AreEqual("value1", child2.GetValue(TestValueProperty));
Assert.AreEqual(1, testValueChanged);
root.Resources.Remove("key1");
Assert.AreEqual("default", child2.GetValue(TestValueProperty));
Assert.AreEqual(2, testValueChanged);
ResourceDictionary dictionary = new ResourceDictionary();
dictionary.Add("key1", "value2");
root.Resources.MergedDictionaries.Add(dictionary);
Assert.AreEqual("value2", child2.GetValue(TestValueProperty));
Assert.AreEqual(3, testValueChanged);
child1.Resources = new ResourceDictionary();
child1.Resources.Add("key1", "value3");
Assert.AreEqual("value3", child2.GetValue(TestValueProperty));
Assert.AreEqual(4, testValueChanged);
child1.Resources.Remove("key1");
Assert.AreEqual("value2", child2.GetValue(TestValueProperty));
Assert.AreEqual(5, testValueChanged);
}
public void ContextElementParentTest()
{
FrameworkElement root = new FrameworkElement();
FrameworkElement child = new FrameworkElement();
Freezable value = new Freezable();
Freezable subValue = new Freezable();
value.SetValue(ValueProperty, subValue);
child.SetValue(ValueProperty, value);
root.AddVisualChild(child);
Assert.AreEqual(value, ((IContextElement)subValue).ContextParent);
Assert.AreEqual(child, ((IContextElement)value).ContextParent);
Assert.AreEqual(root, ((IContextElement)child).ContextParent);
}
internal static void BuildControlTemplate(Template xmlTemplate, FrameworkElement control)
{
var builder = new UIBuilder
{
_rootNode = xmlTemplate.Root,
DataContext = control,
Caller = control,
_isBuildingTemplate = true
};
var subControl = builder.BuildNode(builder._rootNode, control);
var subControlAsFrameworkElement = subControl as FrameworkElement;
if (subControlAsFrameworkElement == null)
{
throw new InvalidOperationException("TemplateControlFirstItemMustBeHTMLElement");
}
control._root = subControlAsFrameworkElement._root;
control.AddVisualChild(subControlAsFrameworkElement);
}
