// Get or set a delegate on this list, by key.
public Delegate this[Object key]
{
get
{
EventHandlerEntry entry = list;
while(entry != null)
{
if(entry.key == key)
{
return entry.value;
}
entry = entry.next;
}
return null;
}
set
{
EventHandlerEntry entry = list;
while(entry != null)
{
if(entry.key == key)
{
entry.value = value;
return;
}
entry = entry.next;
}
list = new EventHandlerEntry(key, value, list);
}
}
// Remove a handler from this list.
public void RemoveHandler(Object key, Delegate value)
{
EventHandlerEntry entry = list;
EventHandlerEntry prev = null;
while (entry != null)
{
if (entry.key == key)
{
entry.value = Delegate.Remove(entry.value, value);
if (entry.value == null)
{
if (prev != null)
{
prev.next = entry.next;
}
else
{
list = entry.next;
}
}
return;
}
prev = entry;
entry = entry.next;
}
}
// Get or set a delegate on this list, by key.
public Delegate this[Object key]
{
get
{
EventHandlerEntry entry = list;
while (entry != null)
{
if (entry.key == key)
{
return(entry.value);
}
entry = entry.next;
}
return(null);
}
set
{
EventHandlerEntry entry = list;
while (entry != null)
{
if (entry.key == key)
{
entry.value = value;
return;
}
entry = entry.next;
}
list = new EventHandlerEntry(key, value, list);
}
}
// Constructor.
public EventHandlerEntry(Object key, Delegate value,
EventHandlerEntry next)
{
this.key = key;
this.value = value;
this.next = next;
}
private void registerEventHandler <T>(EventData <T> evt, EventData <T> .OnEvent callback)
{
EventHandlerEntry <T> entry = new EventHandlerEntry <T>(evt, callback);
entry.register();
eventHandlers.Add(entry);
}
// Add a handler to this list.
public void AddHandler(Object key, Delegate value)
{
EventHandlerEntry entry = list;
while(entry != null)
{
if(entry.key == key)
{
entry.value = Delegate.Combine(entry.value, value);
return;
}
entry = entry.next;
}
list = new EventHandlerEntry(key, value, list);
}
// Add a handler to this list.
public void AddHandler(Object key, Delegate value)
{
EventHandlerEntry entry = list;
while (entry != null)
{
if (entry.key == key)
{
entry.value = Delegate.Combine(entry.value, value);
return;
}
entry = entry.next;
}
list = new EventHandlerEntry(key, value, list);
}
// Constructor.
public EventHandlerList()
{
list = null;
}
// Implement the IDisposable interface.
public void Dispose()
{
list = null;
}
// Remove a handler from this list.
public void RemoveHandler(Object key, Delegate value)
{
EventHandlerEntry entry = list;
EventHandlerEntry prev = null;
while(entry != null)
{
if(entry.key == key)
{
entry.value = Delegate.Remove(entry.value, value);
if(entry.value == null)
{
if(prev != null)
{
prev.next = entry.next;
}
else
{
list = entry.next;
}
}
return;
}
prev = entry;
entry = entry.next;
}
}
// Constructor.
public EventHandlerList()
{
list = null;
}
// Constructor.
public EventHandlerEntry(Object key, Delegate value,
EventHandlerEntry next)
{
this.key = key;
this.value = value;
this.next = next;
}
// Implement the IDisposable interface.
public void Dispose()
{
list = null;
}
