/// <summary>
/// Use this method to scroll up/down for a give hieght
/// </summary>
/// <param name="scrollingLength"></param>
/// <param name="scrollDown"> -1 scrolling down and 1 for scrolling up</param>
protected void ScrollMore(
string elementXPath,
double scrollingLengthXAxis = 0,
double scrollingLengthYAxis = 10,
int scrollDown = -1)
{
JscriptExecutor.ScrollBy(
Driver,
elementXPath,
scrollDown * scrollingLengthXAxis * 2 /*Adding some random offset*/,
scrollDown * scrollingLengthYAxis * 2 /*Adding some random offset*/);
}
public void SelectIllustration(int index)
{
var webElementsCoverPhotos = Driver.FindElements(By.XPath($"//div[@aria-label='{ResLeftNav.ChooseAnIllustration}']//div[@aria-label='{ResLeftNav.CoverPhoto}']"));
if (webElementsCoverPhotos == null || webElementsCoverPhotos.Count < index)
{
return;
}
var webElementIllustration = webElementsCoverPhotos.ToList()[index];
JscriptExecutor.ScrollToTheElement(Driver, webElementIllustration);
webElementIllustration.Click();
}
private void SetIndexOfElementInViewPort()
{
var elementsCount = Driver.FindElements(By.XPath(BaseXPath)).Count;
var index = 1;
for (; index < elementsCount; index++)
{
// If element not in visible view port continue searching.
if (!JscriptExecutor.IsElementOutViewport(Driver, GetRowXPath(index)))
{
continue;
}
CurrentRowIndex = index;
return;
}
}
// Used this type of sloppy loops to mimic scrolling with finger.
// How did I came up with these numbers, just tried bunch of things to see if it is smooth.
protected void JScrollSmoothDown(
string xPathDestElement)
{
var destWebElement = Driver.FindElementWithTimeSpan(By.XPath(xPathDestElement));
var currentLocation = ((RemoteWebElement)destWebElement).LocationOnScreenOnceScrolledIntoView;
var previousLocation = currentLocation;
// Slowly scroll to mimic manual scrolling.
for (var i = 1; currentLocation.Y < 100; i += 80 /*80 is an offset I came up after trying different combinations*/)
{
for (var j = 0; j < 8; j++)
{
JscriptExecutor.ScrollBy(Driver, null, scrollingLengthYAxis: j * -2);
}
for (var j = 8; j > 0; j--)
{
JscriptExecutor.ScrollBy(Driver, null, scrollingLengthYAxis: j * -2);
}
destWebElement = Driver.FindElementWithTimeSpan(By.XPath(xPathDestElement));
currentLocation = ((RemoteWebElement)destWebElement).LocationOnScreenOnceScrolledIntoView;
// Please note, this check is added to ensure when we scroll the element and
// new location is same as previous location, it is an indicator that the element
// we are trying to scroll is hidden by other element and did not move when using
// ScrollBy function. To avoid being stuck in the the infinite loop, we added this
// this check.
if (previousLocation == currentLocation)
{
break;
}
}
// Adding this offset to give more natural scrolling effect.
for (int i = 0; i < 10; i++)
{
ScrollMore(null, scrollingLengthYAxis: 5);
}
}