public void WaitForPageLoad(int maxWaitTimeInSeconds)
{
var state = string.Empty;
try {
var wait = new WebDriverWait(Driver, TimeSpan.FromSeconds(maxWaitTimeInSeconds));
//Checks every 500 ms whether predicate returns true if returns exit otherwise keep trying till it returns true
wait.Until(d => {
try {
state = ((IJavaScriptExecutor)Driver).ExecuteScript(@"return document.readyState").ToString();
} catch (InvalidOperationException) {
//Ignore
} catch (NoSuchWindowException) {
//when popup is closed, switch to last windows
Driver.SwitchTo().Window(Driver.WindowHandles.Last());
}
//In IE7 there are chances we may get state as loaded instead of complete
return(state.Equals("complete", StringComparison.InvariantCultureIgnoreCase) || state.Equals("loaded", StringComparison.InvariantCultureIgnoreCase));
});
} catch (TimeoutException) {
//sometimes Page remains in Interactive mode and never becomes Complete, then we can still try to access the controls
if (!state.Equals("interactive", StringComparison.InvariantCultureIgnoreCase))
{
throw;
}
} catch (NullReferenceException) {
//sometimes Page remains in Interactive mode and never becomes Complete, then we can still try to access the controls
if (!state.Equals("interactive", StringComparison.InvariantCultureIgnoreCase))
{
throw;
}
} catch (WebDriverException) {
if (Driver.WindowHandles.Count == 1)
{
Driver.SwitchTo().Window(Driver.WindowHandles[0]);
}
state = ((IJavaScriptExecutor)Driver).ExecuteScript(@"return document.readyState").ToString();
if (!(state.Equals("complete", StringComparison.InvariantCultureIgnoreCase) ||
state.Equals("loaded", StringComparison.InvariantCultureIgnoreCase)))
{
throw;
}
}
}
