public void Update()
{
if (!IsTopMostActiveWindowDifferent(out _args))
{
_args = null;
}
}
public bool IsTopMostActiveWindowDifferent(out UnexpectedAlertEventArgs args)
{
var windows = GetWindows();
args = null;
foreach (var window in windows)
{
if (_childWindows.Contains(window))
{
continue;
}
/*raiseEvent =
* behavior == UnexpectedAlertBehaviorReaction.DismissAndNotify ||
* behavior == UnexpectedAlertBehaviorReaction.AcceptAndNotify;*/
/*if (raiseEvent)
* {*/
args = new UnexpectedAlertEventArgs
{
Title = window.Title,
Content = window.AllDescendantWindows
.Where(s => s.Visible)
.Select(d => d.Title?.Trim())
.Where(s => !string.IsNullOrEmpty(s))
.ToArray()
};
// TODO requires rewrite
// menus slip through
AutomationElement aw = null;
try
{
aw = AutomationElement.FromHandle(window.HWnd);
}
catch (ElementNotAvailableException)
{
continue; // menus are causing this exception
}
if (aw.Current.ControlType != ControlType.Window)
{
continue; // but sometimes they slip through
}
System.Diagnostics.Debug.WriteLine("New modal window " + window.HWnd);
return(true);
}
return(false);
}
public Handler(AutomationElement automationElement, IntPtr hWnd, CommandEnvironment commandEnvironment)
{
var behavior = commandEnvironment.UnexpectedAlertBehavior;
if (behavior == UnexpectedAlertBehaviorReaction.Ignore)
{
return;
}
_rootWindow = new SystemWindow(hWnd);
IList <SystemWindow> GetWindows()
{
// dialog windows happen not be in the same tree as the root window
return(SystemWindow.DesktopWindow.AllDescendantWindows
.Where(w => w.Visible && w.TopMost && w.Process.MainWindowHandle == hWnd)
.ToList());
}
_childWindows = GetWindows();
var token = _cancellationTokenSource.Token;
_thread = new Thread(() =>
{
while (true)
{
//System.Diagnostics.Debug.WriteLine("Thread work ... " + Thread.CurrentThread.ManagedThreadId);
if (token.IsCancellationRequested)
{
break;
}
var windows = GetWindows();
UnexpectedAlertEventArgs args = null;
var raiseEvent = false;
foreach (var window in windows)
{
if (_childWindows.Contains(window) || !window.Visible)
{
continue;
}
raiseEvent =
behavior == UnexpectedAlertBehaviorReaction.DismissAndNotify ||
behavior == UnexpectedAlertBehaviorReaction.AcceptAndNotify;
if (raiseEvent)
{
args = new UnexpectedAlertEventArgs
{
Title = window.Title,
Content = window.AllDescendantWindows
.Where(s => s.Visible)
.Select(d => d.Title?.Trim())
.Where(s => !string.IsNullOrEmpty(s))
.ToArray()
};
}
// menus slip through
AutomationElement aw = null;
try
{
aw = AutomationElement.FromHandle(window.HWnd);
}
catch (ElementNotAvailableException)
{
continue; // menus are causing this exception
}
if (aw.Current.ControlType != ControlType.Window)
{
continue; // but sometimes they slip through
}
System.Diagnostics.Debug.WriteLine("New modal window " + window.HWnd);
switch (behavior)
{
case UnexpectedAlertBehaviorReaction.Ignore:
break;
case UnexpectedAlertBehaviorReaction.Dismiss:
case UnexpectedAlertBehaviorReaction.DismissAndNotify:
case UnexpectedAlertBehaviorReaction.Accept:
case UnexpectedAlertBehaviorReaction.AcceptAndNotify:
//window.SendClose();
break;
}
}
if (raiseEvent)
{
OnUnexpectedAlert?.Invoke(this, args);
}
_childWindows = GetWindows();
Thread.Sleep(1000);
}
});
_thread.Start(); // TODO new thread for each session (OK), not disposed properly
}