private void IScrollController_OffsetChangeRequested(IScrollController sender, ScrollControllerOffsetChangeRequestedEventArgs args)
{
try
{
if (provideViewChangeIds)
{
viewChangeId++;
args.ViewChangeId = viewChangeId;
AppendAsyncEventMessage("OffsetChangeRequested Created ViewChangeId=" + args.ViewChangeId);
lock (asyncEventReportingLock)
{
viewChangeIds.Add(args.ViewChangeId);
}
var ignored = this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, ProcessAsyncOperation);
}
else
{
AppendAsyncEventMessage("OffsetChangeRequested");
}
}
catch (Exception ex)
{
txtExceptionReport.Text = ex.ToString();
lstScrollBar2Events.Items.Add(ex.ToString());
}
}
private void UnhookIScrollControllerEvents()
{
IScrollController sc = scrollBar2 as IScrollController;
sc.InteractionInfoChanged -= IScrollController_InteractionInfoChanged;
sc.InteractionRequested -= IScrollController_InteractionRequested;
sc.OffsetChangeRequested -= IScrollController_OffsetChangeRequested;
sc.OffsetChangeWithAdditionalVelocityRequested -= IScrollController_OffsetChangeWithAdditionalVelocityRequested;
}
private void IScrollController_OffsetChangeWithAdditionalVelocityRequested(IScrollController sender, ScrollControllerOffsetChangeWithAdditionalVelocityRequestedEventArgs args)
{
try
{
AppendAsyncEventMessage("OffsetChangeWithAdditionalVelocityRequested ViewChangeId=" + args.ViewChangeId);
}
catch (Exception ex)
{
txtExceptionReport.Text = ex.ToString();
lstScrollBar2Events.Items.Add(ex.ToString());
}
}
private void IScrollController_InteractionRequested(IScrollController sender, ScrollControllerInteractionRequestedEventArgs args)
{
try
{
AppendAsyncEventMessage("InteractionRequested PointerPoint=" + args.PointerPoint.ToString());
}
catch (Exception ex)
{
txtExceptionReport.Text = ex.ToString();
lstScrollBar2Events.Items.Add(ex.ToString());
}
}
private void IScrollController_InteractionInfoChanged(IScrollController sender, object args)
{
try
{
AppendAsyncEventMessage("InteractionInfoChanged");
}
catch (Exception ex)
{
txtExceptionReport.Text = ex.ToString();
lstScrollBar2Events.Items.Add(ex.ToString());
}
}
private void ProcessAsyncOperation()
{
lock (asyncOperationLock)
{
foreach (int offsetChangeId in viewChangeIds)
{
IScrollController sc = scrollBar2 as IScrollController;
sc.OnOffsetChangeCompleted(offsetChangeId, ScrollerViewChangeResult.Completed);
}
viewChangeIds.Clear();
}
}
private void OnOffsetChangeWithAdditionalVelocityRequested(IScrollController sender, ScrollControllerOffsetChangeWithAdditionalVelocityRequestedEventArgs e)
{
if (sender == horizontalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnOffsetChangeWithAdditionalVelocityRequested for HorizontalScrollController");
}
else if (sender == verticalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnOffsetChangeWithAdditionalVelocityRequested for VerticalScrollController");
}
else
{
LogMessage("CanvasScrollControllerConsumer: OnOffsetChangeWithAdditionalVelocityRequested for unknown sender");
}
}
private void OnInteractionInfoChanged(IScrollController sender, object e)
{
if (sender == horizontalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnInteractionInfoChanged for HorizontalScrollController");
}
else if (sender == verticalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnInteractionInfoChanged for VerticalScrollController");
}
else
{
LogMessage("CanvasScrollControllerConsumer: OnInteractionInfoChanged for unknown sender");
}
}
private void OnInteractionRequested(IScrollController sender, ScrollControllerInteractionRequestedEventArgs e)
{
if (sender == horizontalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnInteractionRequested for HorizontalScrollController");
}
else if (sender == verticalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnInteractionRequested for VerticalScrollController");
}
else
{
LogMessage("CanvasScrollControllerConsumer: OnInteractionRequested for unknown sender");
}
}
private void OnOffsetChangeRequested(IScrollController sender, ScrollControllerOffsetChangeRequestedEventArgs e)
{
if (sender == horizontalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnOffsetChangeRequested for HorizontalScrollController");
LogMessage("Offset=" + e.Offset + ", OffsetKind=" + e.OffsetKind + ", OffsetChangeKind=" + e.OffsetChangeKind);
switch (e.OffsetKind)
{
case ScrollerViewKind.Absolute:
{
switch (e.OffsetChangeKind)
{
case ScrollerViewChangeKind.DisableAnimation:
Canvas.SetLeft(scrolledElement, -e.Offset);
break;
}
break;
}
}
}
else if (sender == verticalScrollController)
{
LogMessage("CanvasScrollControllerConsumer: OnOffsetChangeRequested for VerticalScrollController");
LogMessage("Offset=" + e.Offset + ", OffsetKind=" + e.OffsetKind + ", OffsetChangeKind=" + e.OffsetChangeKind);
switch (e.OffsetKind)
{
case ScrollerViewKind.Absolute:
{
switch (e.OffsetChangeKind)
{
case ScrollerViewChangeKind.DisableAnimation:
Canvas.SetTop(scrolledElement, -e.Offset);
break;
}
break;
}
}
}
else
{
LogMessage("CanvasScrollControllerConsumer: OnOffsetChangeRequested for unknown sender");
}
}
private void BtnSetValues_Click(object sender, RoutedEventArgs e)
{
try
{
IScrollController sc = scrollBar2 as IScrollController;
sc.SetValues(
Convert.ToDouble(txtMinOffset.Text),
Convert.ToDouble(txtMaxOffset.Text),
Convert.ToDouble(txtOffset.Text),
Convert.ToDouble(txtViewport.Text));
}
catch (Exception ex)
{
txtExceptionReport.Text = ex.ToString();
lstScrollBar2Events.Items.Add(ex.ToString());
}
}
public void VerifyScrollControllerImplementation()
{
RunOnUIThread.Execute(() =>
{
ScrollBar2 scrollBar2 = new ScrollBar2();
Verify.IsNotNull(scrollBar2);
IScrollController scrollBar2AsIScrollController = scrollBar2 as IScrollController;
Verify.IsNotNull(scrollBar2AsIScrollController);
Log.Comment("Verifying ScrollBar2's IScrollController default property values");
Verify.IsTrue(scrollBar2AsIScrollController.AreScrollerInteractionsAllowed);
Verify.IsNull(scrollBar2AsIScrollController.InteractionVisual);
Verify.AreEqual(scrollBar2AsIScrollController.InteractionVisualScrollOrientation, c_defaultOrientation);
Verify.AreEqual(scrollBar2AsIScrollController.InteractionVisualScrollRailingMode, ScrollerRailingMode.Enabled);
Verify.IsFalse(scrollBar2AsIScrollController.IsInteracting);
Log.Comment("Invoking ScrollBar2's IScrollController.SetValues method");
scrollBar2AsIScrollController.SetValues(10.0, 250.0, 75.0, 30.0);
});
}
private void BtnCreateScrollBar2_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
scrollBar2 = new ScrollBar2();
scrollBar2.Name = "dynamicScrollBar2";
scrollBar2.Width = 300.0;
scrollBar2.Height = 16.0;
scrollBar2.Margin = new Thickness(6);
scrollBar2.VerticalAlignment = VerticalAlignment.Top;
scrollBar2.Orientation = Orientation.Horizontal;
IScrollController sc = scrollBar2 as IScrollController;
if (sc != null)
{
sc.SetValues(1, 2, 3, 4);
}
btnCreateScrollBar2.IsEnabled = false;
btnAddScrollBar2.IsEnabled = true;
btnDeleteScrollBar2.IsEnabled = true;
}
private void BtnSetVerticalScrollController_Click(object sender, RoutedEventArgs e)
{
if (verticalScrollController == null)
{
verticalScrollController = new ScrollBarController(verticalScrollBar, lstLog, chkLog.IsChecked.Value);
}
((ScrollBarController)verticalScrollController).IsEnabled = true;
if (cmbIScrollControllerConsumer.SelectedIndex == 0)
{
if (scroller.VerticalScrollController != verticalScrollController)
{
scroller.VerticalScrollController = verticalScrollController;
LogMessage("Scroller.VerticalScrollController set");
}
}
else if (canvasScrollControllerConsumer.VerticalScrollController != verticalScrollController)
{
canvasScrollControllerConsumer.VerticalScrollController = verticalScrollController;
LogMessage("CanvasScrollControllerConsumer.VerticalScrollController set");
}
}
