/// <summary>
/// Unregister all event listeners
/// </summary>
public void UnregisterAllAutomationEventListners()
{
var msg = new EventListenerFactoryMessage()
{
MessageType = EventListenerFactoryMessageType.UnregisterAllEventListeners,
};
AddMessageToQueue(msg);
msg.WaitForProcessed(2000);// expect to be done in 2 seconds.
}
/// <summary>
/// Add a new Factory Message
/// </summary>
/// <param name="msgData"></param>
private void AddMessageToQueue(EventListenerFactoryMessage msgData)
{
// Request the lock, and block until it is obtained.
lock (_msgQueue)
{
// When the lock is obtained, add an element.
_msgQueue.Enqueue(msgData);
}
_autoEventMsg.Set();
}
/// <summary>
/// Unregister a automation event listener
/// </summary>
/// <param name="eventId"></param>
/// <param name="wait">wait to complete</param>
public void UnregisterAutomationEventListener(int eventId, bool wait = false)
{
var msg = new EventListenerFactoryMessage()
{
MessageType = EventListenerFactoryMessageType.UnregisterEventListener,
EventId = eventId
};
AddMessageToQueue(msg);
if (wait)
{
msg.WaitForProcessed(2000);// expect to be done in 2 seconds.
}
}
/// <summary>
/// Process Register event message
/// </summary>
/// <param name="msgData"></param>
private void RegisterEventListener(EventListenerFactoryMessage msgData)
{
try
{
EventMessage m = null;
switch (msgData.EventId)
{
case EventType.UIA_AutomationFocusChangedEventId:
if (this.EventListenerFocusChanged == null)
{
this.EventListenerFocusChanged = new FocusChangedEventListener(this.UIAutomation, msgData.Listener);
}
break;
case EventType.UIA_StructureChangedEventId:
if (this.EventListenerStructureChanged == null)
{
this.EventListenerStructureChanged = new StructureChangedEventListener(this.UIAutomation, this.RootElement.PlatformObject, this.Scope, msgData.Listener);
}
break;
case EventType.UIA_AutomationPropertyChangedEventId:
if (this.EventListenerPropertyChanged == null)
{
this.EventListenerPropertyChanged = new PropertyChangedEventListener(this.UIAutomation, this.RootElement.PlatformObject, this.Scope, msgData.Listener, msgData.Properties);
}
break;
case EventType.UIA_TextEdit_TextChangedEventId:
if (this.EventListenerTextEditTextChanged == null)
{
this.EventListenerTextEditTextChanged = new TextEditTextChangedEventListener(this.UIAutomation8, this.RootElement.PlatformObject, this.Scope, msgData.Listener);
}
break;
case EventType.UIA_ChangesEventId:
if (this.EventListenerChanges == null)
{
this.EventListenerChanges = new ChangesEventListener(this.UIAutomation8, this.RootElement.PlatformObject, this.Scope, msgData.Listener);
}
break;
case EventType.UIA_NotificationEventId:
if (NativeMethods.IsWindowsRS3OrLater())
{
if (this.EventListenerNotification == null)
{
this.EventListenerNotification = new NotificationEventListener(this.UIAutomation8, this.RootElement.PlatformObject, this.Scope, msgData.Listener);
}
}
else
{
m = EventMessage.GetInstance(EventType.UIA_EventRecorderNotificationEventId, null);
m.Properties = new List <KeyValuePair <string, dynamic> >()
{
new KeyValuePair <string, dynamic>("Message", "Event listener registration is rejected."),
new KeyValuePair <string, dynamic>("Event Id", msgData.EventId),
new KeyValuePair <string, dynamic>("Event Name", EventType.GetInstance().GetNameById(msgData.EventId)),
new KeyValuePair <string, dynamic>("Reason", "Not supported platform"),
};
msgData.Listener(m);
}
break;
case EventType.UIA_ActiveTextPositionChangedEventId:
if (NativeMethods.IsWindowsRS5OrLater())
{
if (this.EventListenerNotification == null)
{
this.EventListenerActiveTextPositionChanged = new ActiveTextPositionChangedEventListener(this.UIAutomation8, this.RootElement.PlatformObject, this.Scope, msgData.Listener);
}
}
else
{
m = EventMessage.GetInstance(EventType.UIA_EventRecorderNotificationEventId, null);
m.Properties = new List <KeyValuePair <string, dynamic> >()
{
new KeyValuePair <string, dynamic>("Message", "Event listener registration is rejected."),
new KeyValuePair <string, dynamic>("Event Id", msgData.EventId),
new KeyValuePair <string, dynamic>("Event Name", EventType.GetInstance().GetNameById(msgData.EventId)),
new KeyValuePair <string, dynamic>("Reason", "Not supported platform"),
};
msgData.Listener(m);
}
break;
default:
if (this.EventListeners.ContainsKey(msgData.EventId) == false)
{
this.EventListeners.Add(msgData.EventId, new EventListener(this.UIAutomation, this.RootElement.PlatformObject, this.Scope, msgData.EventId, msgData.Listener));
}
break;
}
m = EventMessage.GetInstance(EventType.UIA_EventRecorderNotificationEventId, null);
m.Properties = new List <KeyValuePair <string, dynamic> >()
{
new KeyValuePair <string, dynamic>("Message", "Succeeded to register an event listener"),
new KeyValuePair <string, dynamic>("Event Id", msgData.EventId),
new KeyValuePair <string, dynamic>("Event Name", EventType.GetInstance().GetNameById(msgData.EventId)),
};
msgData.Listener(m);
if (msgData.EventId == EventType.UIA_AutomationFocusChangedEventId)
{
this.EventListenerFocusChanged.ReadyToListen = true;
}
}
catch (Exception e)
{
var m = EventMessage.GetInstance(EventType.UIA_EventRecorderNotificationEventId, null);
m.Properties = new List <KeyValuePair <string, dynamic> >()
{
new KeyValuePair <string, dynamic>("Message", "Failed to register an event listener"),
new KeyValuePair <string, dynamic>("Event Id", msgData.EventId),
new KeyValuePair <string, dynamic>("Event Name", EventType.GetInstance().GetNameById(msgData.EventId)),
new KeyValuePair <string, dynamic>("Error", e.Message)
};
msgData.Listener(m);
}
}
/// <summary>
/// Process Unregister event message
/// </summary>
/// <param name="msgData"></param>
private void UnregisterEventListener(EventListenerFactoryMessage msgData)
{
HandleUIAutomationEventMessage listener = null;
try
{
switch (msgData.EventId)
{
case EventType.UIA_AutomationFocusChangedEventId:
if (this.EventListenerFocusChanged != null)
{
listener = this.EventListenerFocusChanged.ListenEventMessage;
this.EventListenerFocusChanged.Dispose();
this.EventListenerFocusChanged = null;
}
break;
case EventType.UIA_StructureChangedEventId:
if (this.EventListenerStructureChanged != null)
{
listener = this.EventListenerStructureChanged.ListenEventMessage;
this.EventListenerStructureChanged.Dispose();
this.EventListenerStructureChanged = null;
}
break;
case EventType.UIA_AutomationPropertyChangedEventId:
if (this.EventListenerPropertyChanged != null)
{
listener = this.EventListenerPropertyChanged.ListenEventMessage;
this.EventListenerPropertyChanged.Dispose();
this.EventListenerPropertyChanged = null;
}
break;
case EventType.UIA_TextEdit_TextChangedEventId:
if (this.EventListenerTextEditTextChanged != null)
{
listener = this.EventListenerTextEditTextChanged.ListenEventMessage;
this.EventListenerTextEditTextChanged.Dispose();
this.EventListenerTextEditTextChanged = null;
}
break;
case EventType.UIA_ChangesEventId:
if (this.EventListenerChanges != null)
{
listener = this.EventListenerChanges.ListenEventMessage;
this.EventListenerChanges.Dispose();
this.EventListenerChanges = null;
}
break;
case EventType.UIA_NotificationEventId:
if (this.EventListenerNotification != null)
{
listener = this.EventListenerNotification.ListenEventMessage;
this.EventListenerNotification.Dispose();
this.EventListenerNotification = null;
}
break;
case EventType.UIA_ActiveTextPositionChangedEventId:
if (this.EventListenerActiveTextPositionChanged != null)
{
listener = this.EventListenerActiveTextPositionChanged.ListenEventMessage;
this.EventListenerActiveTextPositionChanged.Dispose();
this.EventListenerActiveTextPositionChanged = null;
}
break;
default:
if (this.EventListeners.ContainsKey(msgData.EventId))
{
var l = this.EventListeners[msgData.EventId];
listener = l.ListenEventMessage;
this.EventListeners.Remove(msgData.EventId);
l.Dispose();
}
break;
}
if (listener != null)
{
var m = EventMessage.GetInstance(EventType.UIA_EventRecorderNotificationEventId, null);
m.Properties = new List <KeyValuePair <string, dynamic> >()
{
new KeyValuePair <string, dynamic>("Message", "Succeeded to unregister a event listeners"),
new KeyValuePair <string, dynamic>("Event Id", msgData.EventId),
new KeyValuePair <string, dynamic>("Event Name", EventType.GetInstance().GetNameById(msgData.EventId)),
};
listener(m);
}
}
catch (Exception e)
{
var m = EventMessage.GetInstance(EventType.UIA_EventRecorderNotificationEventId, null);
m.Properties = new List <KeyValuePair <string, dynamic> >()
{
new KeyValuePair <string, dynamic>("Message", "Failed to unregister a event listeners"),
new KeyValuePair <string, dynamic>("Event Id", msgData.EventId),
new KeyValuePair <string, dynamic>("Event Name", EventType.GetInstance().GetNameById(msgData.EventId)),
new KeyValuePair <string, dynamic>("Error", e.Message)
};
listener(m);
/// it is very unexpected situation.
/// need to figure out a way to prevent it or handle it more gracefully
}
}