private IEnumerable <Element> FindElements(Selector selector, LoggingWebDriver loggingWebdriver)
{
var wrappers = selector.PrioritizedSearchers.Select(s => new Wrapper {
Searcher = s
}).ToList();
var loopResults = Parallel.ForEach(wrappers, (wrapper, loopState) =>
{
var searcher = wrapper.Searcher;
var results = searcher.SearchIn(loggingWebdriver, Prefixes);
SuccessfulSearchers.Add(searcher);
loopState.Break();
wrapper.Elements = results;
return;
});
var r = loopResults.IsCompleted;
var index = 0;
foreach (var w in wrappers)
{
if (w.Elements != null)
{
if (w.Elements.Any())
{
foreach (var e in w.Elements)
{
AugmentWebElementSources(selector, e.WebElement);
}
}
return(w.Elements);
}
if (w.Exception != null)
{
throw new AggregateException($"Error throw on xpath {index}", w.Exception);
}
index++;
}
return(null);
}
public IEnumerable <Element> SelectMany(Selector selector)
=> RetryExecutor.RetryFor(() =>
{
var loggingWebdriver = new LoggingWebDriver(SeleniumDriver, MovieLogger, WebElementSourceLog);
try
{
var elements = FindElements(selector, loggingWebdriver);
if (elements != null)
{
return(elements);
}
//iframes ?
var iframes = SeleniumDriver.FindElements(By.XPath("//iframe"));
foreach (var iframe in iframes)
{
try
{
loggingWebdriver.Log($"Trying iframe:{iframe}");
SeleniumDriver.SwitchTo().Frame(iframe);
elements = FindElements(selector, loggingWebdriver);
if (elements != null)
{
return(elements);
}
}
catch
{ }
}
SeleniumDriver.SwitchTo().DefaultContent();
return(new List <Element>());
}
finally
{
if (loggingWebdriver.Screenshots.Any())
{
Screenshots = loggingWebdriver.Screenshots.Select(x => x.AsByteArray).ToList();
}
}
}, TimeSpan.FromMilliseconds(SeleniumGridConfiguration.RetryMs));
public Element Select(Selector selector, TimeSpan?retryDuration = null, int?index = null)
=> RetryExecutor.RetryFor(() =>
{
var loggingWebdriver = new LoggingWebDriver(SeleniumDriver, MovieLogger, WebElementSourceLog);
try
{
var element = FindElement(selector, loggingWebdriver, index);
if (element != null)
{
return(element);
}
//iframes ?
var iframes = SeleniumDriver.FindElements(By.XPath("//iframe"));
foreach (var iframe in iframes)
{
try
{
loggingWebdriver.Log($"Trying iframe:{iframe}");
SeleniumDriver.SwitchTo().Frame(iframe);
element = FindElement(selector, loggingWebdriver, index);
if (element != null)
{
return(element);
}
}
catch
{ }
}
SeleniumDriver.SwitchTo().DefaultContent();
throw new Exception($"element was not found; tried:\n{loggingWebdriver.GetLogs()}, maybe try one of these identifiers {GetIdentifiers().Take(10).LogFormat()}");
}
finally
{
if (loggingWebdriver.Screenshots.Any())
{
Screenshots = loggingWebdriver.Screenshots.Select(x => x.AsByteArray).ToList();
}
}
}, retryDuration ?? TimeSpan.FromMilliseconds(SeleniumGridConfiguration.RetryMs));
public TableElement GetTables(IEnumerable <string> headers, StringComparison comparison = StringComparison.CurrentCulture, int?index = null)
=> RetryExecutor.RetryFor(() =>
{
var loggingWebdriver = new LoggingWebDriver(SeleniumDriver, MovieLogger, WebElementSourceLog);
try
{
var possilbeTables = GetTables(headers.Count()).ToList();
Func <string, string, bool> comparer = (s1, s2) => s1.Equals(s2, comparison);
var tableElements = possilbeTables.Where(t => headers.Where(h => !string.IsNullOrEmpty(h)).Except(t.Header.Keys,
new Core.EqualityComparer <string>(comparer)).None());
if (tableElements.One())
{
return(tableElements.First());
}
//Exact match overrides in case of multiples.
if (tableElements.Where(x => headers.Count() == x.MaxColumnIndex).One())
{
return(tableElements.Where(x => headers.Count() == x.MaxColumnIndex).First());
}
if (tableElements.Many())
{
if (index == null)
{
throw new Exception($"multiple talbes matched the definition of {headers.LogFormat()}, table headers were {tableElements.LogFormat(t => $"Table: {t.Header.Keys.LogFormat()}")};");
}
if (index >= tableElements.Count())
{
throw new Exception($"only found {tableElements.Count()} tables, index of {index} is out of range. (zero based)");
}
return(tableElements.ToArray()[index.Value]);
}
//iframes ?
var iframes = SeleniumDriver.FindElements(By.XPath("//iframe"));
foreach (var iframe in iframes)
{
try
{
loggingWebdriver.Log($"Trying iframe:{iframe}");
SeleniumDriver.SwitchTo().Frame(iframe);
possilbeTables = GetTables(headers.Count() - 1).ToList();
tableElements = possilbeTables.Where(t => headers.Where(h => !string.IsNullOrEmpty(h)).Except(t.Header.Keys,
new Core.EqualityComparer <string>(comparer)).None());
if (tableElements.One())
{
return(tableElements.First());
}
if (tableElements.Many())
{
if (index == null)
{
throw new Exception($"multiple talbes matched the definition of {headers.LogFormat()}, table headers were {tableElements.LogFormat(t => $"Table: {t.Header.Keys.LogFormat()}")};");
}
if (index >= tableElements.Count())
{
throw new Exception($"only found {tableElements.Count()} tables, index of {index} is out of range. (zero based)");
}
return(tableElements.ToArray()[index.Value]);
}
}
catch
{ }
}
SeleniumDriver.SwitchTo().DefaultContent();
throw new Exception($"table was not found");
}
finally
{
if (loggingWebdriver.Screenshots.Any())
{
Screenshots = loggingWebdriver.Screenshots.Select(x => x.AsByteArray).ToList();
}
}
}, TimeSpan.FromMilliseconds(SeleniumGridConfiguration.RetryMs));
private Element FindElement(Selector selector, LoggingWebDriver loggingWebdriver, int?index = null)
{
var wrappers = selector.PrioritizedSearchers.Select(s => new Wrapper {
Searcher = s
}).ToList();
var loopResults = Parallel.ForEach(wrappers,
//new ParallelOptions { MaxDegreeOfParallelism = 4 },
(wrapper, loopState) =>
{
var searcher = wrapper.Searcher;
var results = searcher.SearchIn(loggingWebdriver, Prefixes);
if (loopState.ShouldExitCurrentIteration)
{
return;
}
else if (results.One())
{
SuccessfulSearchers.Add(searcher);
loopState.Break();
wrapper.Element = results.First();
return;
}
else if (results.Many() && index.HasValue)
{
SuccessfulSearchers.Add(searcher);
loopState.Break();
var a = results.ToArray();
if (a.Count() <= index.Value)
{
wrapper.Exception = new Exception($"Not enough items found, found {a.Count()} and desired index {index}");
}
else
{
wrapper.Element = a[index.Value];
}
return;
}
else if (results.Many())
{
var by = WebElementSourceLog.Get(results.First().WebElement).By;
if (by.IsXpath())
{
//lets find the only clickable one,
//if two are precisely on top of each other it will not filter that
//but that is unlikely to happen in real applications
var el = FindOnlyClickable(by.Xpath());
if (el != null)
{
var pos = el.Location;
var rpos = results.Select(x => new { x.Location, x }).ToList();
var filterHidden = rpos
.Where(e => e.Location == pos)
.Select(x => x.x);
if (filterHidden.One())
{
SuccessfulSearchers.Add(searcher);
loopState.Break();
wrapper.Element = filterHidden.First();
return;
}
}
}
var items = results.Select(e => $"{e.Tag}@{e.Location.X},{e.Location.Y}").LogFormat();
loopState.Break();
wrapper.Exception = new Exception($"Multiple results were found using {searcher.LogFormat()}");
return;
}
});
var r = loopResults.IsCompleted;
var wrapperIndex = 0;
foreach (var w in wrappers)
{
if (w.Element != null)
{
AugmentWebElementSources(selector, w.Element.WebElement);
return(w.Element);
}
if (w.Exception != null)
{
throw new AggregateException($"Error throw on xpath {wrapperIndex}", w.Exception);
}
wrapperIndex++;
}
return(null);
}