public void Should_Register_With_Host_When_TemplatedParent_Set()
{
var host = new Mock<IContentPresenterHost>();
var target = new ContentPresenter();
target.SetValue(Control.TemplatedParentProperty, host.Object);
host.Verify(x => x.RegisterContentPresenter(target));
}
public void Should_Set_Childs_Parent_To_Itself_Outside_Template()
{
var content = new Border();
var target = new ContentPresenter { Content = content };
target.UpdateChild();
Assert.Same(target, content.Parent);
}
public void Setting_Content_Should_Make_Control_Appear_In_LogicalChildren()
{
var target = new ContentPresenter();
var child = new Control();
target.Content = child;
target.ApplyTemplate();
Assert.Equal(new[] { child }, ((ILogical)target).LogicalChildren.ToList());
}
public void Clearing_Content_Should_Remove_From_LogicalChildren()
{
var target = new ContentPresenter();
var child = new Control();
target.Content = child;
target.Content = null;
Assert.Equal(new ILogical[0], ((ILogical)target).LogicalChildren.ToList());
}
public void Setting_Content_To_String_Should_Create_TextBlock()
{
var target = new ContentPresenter();
target.Content = "Foo";
Assert.Null(target.Child);
target.UpdateChild();
Assert.IsType<TextBlock>(target.Child);
Assert.Equal("Foo", ((TextBlock)target.Child).Text);
}
public void Setting_Content_To_Control_Should_Set_Child()
{
var target = new ContentPresenter();
var child = new Border();
target.Content = child;
Assert.Null(target.Child);
target.UpdateChild();
Assert.Equal(child, target.Child);
}
public void Clearing_Content_Clear_Childs_Parent()
{
var target = new ContentPresenter();
var child = new Control();
target.Content = child;
target.ApplyTemplate();
target.Content = null;
target.ApplyTemplate();
Assert.Null(child.Parent);
Assert.Null(child.GetLogicalParent());
}
public void Changing_Content_Should_Fire_LogicalChildren_CollectionChanged()
{
var target = new ContentPresenter();
var child = new Control();
var called = false;
((ILogical)target).LogicalChildren.CollectionChanged += (s, e) =>
called = e.Action == NotifyCollectionChangedAction.Add;
target.Content = child;
target.ApplyTemplate();
Assert.True(called);
}
public void Setting_Content_To_String_Should_Create_TextBlock()
{
var target = new ContentPresenter();
target.Content = "Foo";
// Child should not update until ApplyTemplate called.
Assert.Null(target.Child);
target.ApplyTemplate();
Assert.IsType<TextBlock>(target.Child);
Assert.Equal("Foo", ((TextBlock)target.Child).Text);
}
public void Setting_Content_To_Control_Should_Set_Child()
{
var target = new ContentPresenter();
var child = new Border();
target.Content = child;
// Child should not update until ApplyTemplate called.
Assert.Null(target.Child);
target.ApplyTemplate();
Assert.Equal(child, target.Child);
}
public void Adding_To_Logical_Tree_Should_Reevaluate_DataTemplates()
{
var target = new ContentPresenter
{
Content = "Foo",
};
target.ApplyTemplate();
Assert.IsType<TextBlock>(target.Child);
var root = new TestRoot
{
DataTemplates = new DataTemplates
{
new FuncDataTemplate<string>(x => new Decorator()),
},
};
root.Child = target;
target.ApplyTemplate();
Assert.IsType<Decorator>(target.Child);
}
/// <inheritdoc/>
protected override void OnTemplateApplied(TemplateAppliedEventArgs e)
{
base.OnTemplateApplied(e);
HeaderPresenter = e.NameScope.Find<ContentPresenter>("PART_HeaderPresenter");
}
