public static void SetVerticalScrollPercent(ScrollPresenter scrollPresenter, double verticalPercent)
{
Verify.IsNotNull(scrollPresenter);
Verify.AreNotEqual(verticalPercent, 0.0);
Log.Comment("ScrollHelper.SetVerticalScrollPercent scrollPresenter={0}, verticalPercent={1}, before-vertical-offset={2}.",
string.IsNullOrWhiteSpace(scrollPresenter.AutomationId) ? scrollPresenter.Name : scrollPresenter.AutomationId,
verticalPercent,
scrollPresenter.VerticalScrollPercent);
scrollPresenter.SetScrollPercent(-1 /*NoScroll*/, verticalPercent);
Wait.ForScrollChanged(scrollPresenter, ScrollProperty.VerticalScrollPercent);
Log.Comment("ScrollHelper.SetVerticalScrollPercent after-vertical-offset={0}.",
scrollPresenter.VerticalScrollPercent);
}
public static void ScrollVertically(ScrollPresenter scrollPresenter, ScrollAmount amount)
{
Verify.IsNotNull(scrollPresenter);
Verify.AreNotEqual(amount, ScrollAmount.NoAmount);
Log.Comment("ScrollHelper.ScrollVertically scrollPresenter={0}, amount={1}, before-offset={2}.",
string.IsNullOrWhiteSpace(scrollPresenter.AutomationId) ? scrollPresenter.Name : scrollPresenter.AutomationId,
amount,
scrollPresenter.VerticalScrollPercent);
scrollPresenter.ScrollVertical(amount);
Wait.ForScrollChanged(scrollPresenter, ScrollProperty.VerticalScrollPercent);
Log.Comment("ScrollHelper.ScrollVertically after-offset={0}.",
scrollPresenter.VerticalScrollPercent);
}
public static bool ForScrollChanged(ScrollPresenter scrollPresenter, ScrollProperty scrollProperty)
{
Log.Comment("Wait.ForScrollChanged call for {0}.", scrollProperty.ToString());
using (UIEventWaiter scrollChangedWaiter =
(scrollProperty == ScrollProperty.HorizontallyScrollable || scrollProperty == ScrollProperty.VerticallyScrollable) ?
scrollPresenter.GetScrollChangedWaiter(scrollProperty, null) :
scrollPresenter.GetScrollChangedWaiter(scrollProperty, double.NaN))
{
if (!scrollChangedWaiter.TryWait(TimeSpan.FromSeconds(5)))
{
Log.Comment("Timeout expired.");
return(false);
}
}
return(true);
}
public static void Scroll(ScrollPresenter scrollPresenter, ScrollAmount horizontalAmount, ScrollAmount verticalAmount)
{
Verify.IsNotNull(scrollPresenter);
Verify.AreNotEqual(horizontalAmount, ScrollAmount.NoAmount);
Verify.AreNotEqual(verticalAmount, ScrollAmount.NoAmount);
Log.Comment("ScrollHelper.Scroll scrollPresenter={0}, horizontalAmount={1}, verticalAmount={2}, before-horizontal-offset={3}, before-vertical-offset={4}.",
string.IsNullOrWhiteSpace(scrollPresenter.AutomationId) ? scrollPresenter.Name : scrollPresenter.AutomationId,
horizontalAmount,
verticalAmount,
scrollPresenter.HorizontalScrollPercent,
scrollPresenter.VerticalScrollPercent);
scrollPresenter.Scroll(horizontalAmount, verticalAmount);
Wait.ForScrollChanged(scrollPresenter, ScrollProperty.HorizontalScrollPercent);
Log.Comment("ScrollHelper.Scroll after-horizontal-offset={0}, after-vertical-offset={1}.",
scrollPresenter.HorizontalScrollPercent,
scrollPresenter.VerticalScrollPercent);
}
