public void InvalidateScroll_Should_Be_Set_When_Set_As_Content()
{
var scrollable = new TestScrollable();
var target = new ScrollContentPresenter
{
Content = scrollable
};
target.ApplyTemplate();
Assert.NotNull(scrollable.InvalidateScroll);
}
public void BringDescendentIntoView_Should_Handle_Child_Margin()
{
Border border;
var target = new ScrollContentPresenter
{
Width = 100,
Height = 100,
Content = new Decorator
{
Margin = new Thickness(50),
Child = border = new Border
{
Width = 200,
Height = 200,
}
}
};
target.ApplyTemplate();
target.Measure(Size.Infinity);
target.Arrange(new Rect(0, 0, 100, 100));
target.BringDescendentIntoView(border, new Rect(200, 200, 0, 0));
Assert.Equal(new Vector(150, 150), target.Offset);
}
public void BringDescendentIntoView_Should_Update_Offset()
{
var target = new ScrollContentPresenter
{
Width = 100,
Height = 100,
Content = new Border
{
Width = 200,
Height = 200,
}
};
target.ApplyTemplate();
target.Measure(Size.Infinity);
target.Arrange(new Rect(0, 0, 100, 100));
target.BringDescendentIntoView(target.Child, new Rect(200, 200, 0, 0));
Assert.Equal(new Vector(100, 100), target.Offset);
}
public void Extent_Offset_And_Viewport_Should_Be_Read_From_IScrollable()
{
var scrollable = new TestScrollable
{
Extent = new Size(100, 100),
Offset = new Vector(50, 50),
Viewport = new Size(25, 25),
};
var target = new ScrollContentPresenter
{
Content = scrollable
};
target.ApplyTemplate();
Assert.Equal(scrollable.Extent, target.Extent);
Assert.Equal(scrollable.Offset, target.Offset);
Assert.Equal(scrollable.Viewport, target.Viewport);
scrollable.Extent = new Size(200, 200);
scrollable.Offset = new Vector(100, 100);
scrollable.Viewport = new Size(50, 50);
Assert.Equal(scrollable.Extent, target.Extent);
Assert.Equal(scrollable.Offset, target.Offset);
Assert.Equal(scrollable.Viewport, target.Viewport);
}
public void InvalidateScroll_Should_Be_Cleared_When_Removed_From_Content()
{
var scrollable = new TestScrollable();
var target = new ScrollContentPresenter
{
Content = scrollable
};
target.ApplyTemplate();
target.Content = null;
target.ApplyTemplate();
Assert.Null(scrollable.InvalidateScroll);
}
public void Offset_Should_Be_Written_To_IScrollable()
{
var scrollable = new TestScrollable
{
Extent = new Size(100, 100),
Offset = new Vector(50, 50),
};
var target = new ScrollContentPresenter
{
Content = scrollable
};
target.ApplyTemplate();
target.Offset = new Vector(25, 25);
Assert.Equal(target.Offset, scrollable.Offset);
}
