/// <summary>
/// Adds a routed event handler for the given
/// RoutedEvent to the store
/// </summary>
public void AddRoutedEventHandler(
RoutedEvent routedEvent,
Delegate handler,
bool handledEventsToo)
{
if (routedEvent == null)
{
throw new ArgumentNullException("routedEvent");
}
if (handler == null)
{
throw new ArgumentNullException("handler");
}
// Create a new RoutedEventHandler
RoutedEventHandlerInfo routedEventHandlerInfo =
new RoutedEventHandlerInfo(handler, handledEventsToo);
// Get the entry corresponding to the given RoutedEvent
ArrayList handlers = this[routedEvent];
if (handlers == null)
{
_keys.Add(routedEvent);
_values.Add(handlers = new ArrayList());
}
// Add the RoutedEventHandlerInfo to the list
handlers.Add(routedEventHandlerInfo);
}
/// <summary>
/// Constructor for <see cref="EventRoute"/> given
/// the associated <see cref="RoutedEvent"/>
/// </summary>
/// <param name="routedEvent">
/// Non-null <see cref="RoutedEvent"/> to be associated with
/// this <see cref="EventRoute"/>
/// </param>
public EventRoute(RoutedEvent routedEvent)
{
if (routedEvent == null)
{
throw new ArgumentNullException("routedEvent");
}
RoutedEvent = routedEvent;
_routeItemList = new ArrayList();
}
// Returns Handlers for the given key
internal ArrayList this[RoutedEvent key]
{
get
{
//Replace with HashTable
int index = _keys.IndexOf(key);
if (index >= 0)
{
return ((ArrayList)_values[index]);
}
return null;
}
}
private RawButtonInputReport ExtractRawButtonInputReport(NotifyInputEventArgs e, RoutedEvent Event)
{
RawButtonInputReport buttonInput = null;
InputReportEventArgs input = e.StagingItem.Input as InputReportEventArgs;
if (input != null)
{
if (input.Report is RawButtonInputReport && input.RoutedEvent == Event)
{
buttonInput = (RawButtonInputReport)input.Report;
}
}
return buttonInput;
}
/// <summary>
/// Adds a routed event handler for the particular
/// <see cref="RoutedEvent"/>
/// </summary>
/// <remarks>
/// The handler added thus is also known as
/// an instance handler <para/>
/// <para/>
///
/// NOTE: It is not an error to add a handler twice
/// (handler will simply be called twice) <para/>
/// <para/>
///
/// Input parameters <see cref="RoutedEvent"/>
/// and handler cannot be null <para/>
/// handledEventsToo input parameter when false means
/// that listener does not care about already handled events.
/// Hence the handler will not be invoked on the target if
/// the RoutedEvent has already been
/// <see cref="RoutedEventArgs.Handled"/> <para/>
/// handledEventsToo input parameter when true means
/// that the listener wants to hear about all events even if
/// they have already been handled. Hence the handler will
/// be invoked irrespective of the event being
/// <see cref="RoutedEventArgs.Handled"/>
/// </remarks>
/// <param name="routedEvent">
/// <see cref="RoutedEvent"/> for which the handler
/// is attached
/// </param>
/// <param name="handler">
/// The handler that will be invoked on this object
/// when the RoutedEvent is raised
/// </param>
/// <param name="handledEventsToo">
/// Flag indicating whether or not the listener wants to
/// hear about events that have already been handled
/// </param>
public void AddHandler(
RoutedEvent routedEvent,
RoutedEventHandler handler,
bool handledEventsToo)
{
if (routedEvent == null || handler == null)
throw new ArgumentNullException();
AddRoutedEventHandler(InstanceEventHandlersStore, routedEvent, handler, handledEventsToo);
}
private static void AddRoutedEventHandler(
Hashtable table,
RoutedEvent routedEvent,
RoutedEventHandler handler,
bool handledEventsToo)
{
if (routedEvent == null || handler == null)
{
throw new ArgumentNullException();
}
// Create a new RoutedEventHandler
RoutedEventHandlerInfo routedEventHandlerInfo =
new RoutedEventHandlerInfo(handler, handledEventsToo);
// Get the entry corresponding to the given RoutedEvent
ArrayList handlers = (ArrayList)table[routedEvent];
if (handlers == null)
{
table[routedEvent] = (handlers = new ArrayList());
}
// Add the RoutedEventHandlerInfo to the list
handlers.Add(routedEventHandlerInfo);
}
/// <summary>
/// Constructor for <see cref="RoutedEventArgs"/>
/// </summary>
/// <param name="source">The new value that the SourceProperty is being set to </param>
/// <param name="routedEvent">The new value that the RoutedEvent Property is being set to </param>
public RoutedEventArgs(RoutedEvent routedEvent, object source)
{
_routedEvent = routedEvent;
_source = _originalSource = source;
}
/// <summary>
/// Constructor for <see cref="RoutedEventArgs"/>
/// </summary>
/// <param name="routedEvent">The new value that the RoutedEvent Property is being set to </param>
public RoutedEventArgs(RoutedEvent routedEvent)
: this(routedEvent, null)
{
}
