public void ValidateOneScrollerScenario()
{
if (!PlatformConfiguration.IsOsVersionGreaterThanOrEqual(OSVersion.Redstone5))
{
Log.Warning("Skipping since version is less than RS5 and effective viewport feature is not available below RS5");
return;
}
var realizationRects = new List <Rect>();
Scroller scroller = null;
var scrollCompletedEvent = new AutoResetEvent(false);
var zoomCompletedEvent = new AutoResetEvent(false);
RunOnUIThread.Execute(() =>
{
var repeater = new ItemsRepeater()
{
Layout = GetMonitoringLayout(new Size(500, 600), realizationRects),
HorizontalCacheLength = 0.0,
VerticalCacheLength = 0.0
};
scroller = new Scroller
{
Content = repeater,
Width = 200,
Height = 300
};
Content = scroller;
Content.UpdateLayout();
Verify.AreEqual(2, realizationRects.Count);
Verify.AreEqual(new Rect(0, 0, 0, 0), realizationRects[0]);
Verify.AreEqual(new Rect(0, 0, 200, 300), realizationRects[1]);
realizationRects.Clear();
scroller.ScrollCompleted += (Scroller sender, ScrollCompletedEventArgs args) =>
{
scrollCompletedEvent.Set();
};
scroller.ZoomCompleted += (Scroller sender, ZoomCompletedEventArgs args) =>
{
zoomCompletedEvent.Set();
};
});
IdleSynchronizer.Wait();
RunOnUIThread.Execute(() =>
{
scroller.ScrollTo(0.0, 100.0, new ScrollOptions(AnimationMode.Disabled, SnapPointsMode.Ignore));
});
Verify.IsTrue(scrollCompletedEvent.WaitOne(DefaultWaitTimeInMS));
CompositionPropertySpy.SynchronouslyTickUIThread(1);
RunOnUIThread.Execute(() =>
{
Verify.AreEqual(new Rect(0, 100, 200, 300), realizationRects.Last());
realizationRects.Clear();
scroller.ZoomTo(2.0f, Vector2.Zero, new ZoomOptions(AnimationMode.Disabled, SnapPointsMode.Ignore));
});
Verify.IsTrue(zoomCompletedEvent.WaitOne(DefaultWaitTimeInMS));
CompositionPropertySpy.SynchronouslyTickUIThread(1);
RunOnUIThread.Execute(() =>
{
Verify.AreEqual(
new Rect(0, 100, 100, 150),
realizationRects.Last());
realizationRects.Clear();
});
}
public void ValidateTwoScrollersScenario()
{
if (!PlatformConfiguration.IsOsVersionGreaterThanOrEqual(OSVersion.Redstone5))
{
Log.Warning("Skipping since version is less than RS5 and effective viewport feature is not available below RS5");
return;
}
var realizationRects = new List <Rect>();
Scroller horizontalScroller = null;
Scroller verticalScroller = null;
var horizontalScrollCompletedEvent = new AutoResetEvent(false);
var verticalScrollCompletedEvent = new AutoResetEvent(false);
RunOnUIThread.Execute(() =>
{
var repeater = new ItemsRepeater()
{
Layout = GetMonitoringLayout(new Size(500, 500), realizationRects),
HorizontalCacheLength = 0.0,
VerticalCacheLength = 0.0
};
horizontalScroller = new Scroller
{
Content = repeater,
ContentOrientation = ContentOrientation.Horizontal
};
// Placing a Grid in between two Scroller controls to avoid
// unsupported combined use of facades and ElementCompositionPreview.
var grid = new Grid();
grid.Children.Add(horizontalScroller);
verticalScroller = new Scroller
{
Content = grid,
Width = 200,
Height = 200,
ContentOrientation = ContentOrientation.Vertical
};
Content = verticalScroller;
Content.UpdateLayout();
Verify.AreEqual(2, realizationRects.Count);
Verify.AreEqual(new Rect(0, 0, 0, 0), realizationRects[0]);
Verify.AreEqual(new Rect(0, 0, 200, 200), realizationRects[1]);
realizationRects.Clear();
horizontalScroller.ScrollCompleted += (Scroller sender, ScrollCompletedEventArgs args) =>
{
horizontalScrollCompletedEvent.Set();
};
verticalScroller.ScrollCompleted += (Scroller sender, ScrollCompletedEventArgs args) =>
{
verticalScrollCompletedEvent.Set();
};
});
IdleSynchronizer.Wait();
RunOnUIThread.Execute(() =>
{
verticalScroller.ScrollTo(0.0, 100.0, new ScrollOptions(AnimationMode.Disabled, SnapPointsMode.Ignore));
});
Verify.IsTrue(verticalScrollCompletedEvent.WaitOne(DefaultWaitTimeInMS));
CompositionPropertySpy.SynchronouslyTickUIThread(1);
RunOnUIThread.Execute(() =>
{
Verify.AreEqual(new Rect(0, 100, 200, 200), realizationRects.Last());
realizationRects.Clear();
// Max viewport offset is (300, 300). Horizontal viewport offset
// is expected to get coerced from 400 to 300.
horizontalScroller.ScrollTo(400.0, 100.0, new ScrollOptions(AnimationMode.Disabled, SnapPointsMode.Ignore));
});
Verify.IsTrue(horizontalScrollCompletedEvent.WaitOne(DefaultWaitTimeInMS));
CompositionPropertySpy.SynchronouslyTickUIThread(1);
RunOnUIThread.Execute(() =>
{
Verify.AreEqual(new Rect(300, 100, 200, 200), realizationRects.Last());
realizationRects.Clear();
});
}