Created
January 13, 2011 08:07
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Code snippet for a basic WeakEventManager class
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<?xml version="1.0" encoding="utf-8" ?> | |
<CodeSnippets xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet"> | |
<CodeSnippet Format="1.0.0"> | |
<Header> | |
<Title>WeakEventManager snippet</Title> | |
<Shortcut>wem</Shortcut> | |
<Description>Code snippet for a basic WeakEventManager class</Description> | |
<Author>Ivan Nikitin</Author> | |
<SnippetTypes> | |
<SnippetType>Expansion</SnippetType> | |
</SnippetTypes> | |
</Header> | |
<Snippet> | |
<Declarations> | |
<Literal> | |
<ID>className</ID> | |
<ToolTip>New weak event manager class name</ToolTip> | |
<Default>MyEventManager</Default> | |
</Literal> | |
<Literal> | |
<ID>source</ID> | |
<ToolTip>Event source type</ToolTip> | |
<Default>object</Default> | |
</Literal> | |
<Literal> | |
<ID>eventName</ID> | |
<ToolTip>Event name</ToolTip> | |
<Default>MyEvent</Default> | |
</Literal> | |
<Literal> | |
<ID>eventArgs</ID> | |
<ToolTip>Event arguments type</ToolTip> | |
<Default>EventArgs</Default> | |
</Literal> | |
</Declarations> | |
<Code Language="csharp"> | |
<![CDATA[public class $className$ : WeakEventManager { | |
static $className$ CurrentManager { | |
get { | |
Type managerType = typeof($className$); | |
$className$ currentManager = | |
($className$)WeakEventManager.GetCurrentManager(managerType); | |
if(currentManager == null) { | |
currentManager = new $className$(); | |
WeakEventManager.SetCurrentManager(managerType, currentManager); | |
} | |
return currentManager; | |
} | |
} | |
$className$() { } | |
public static void AddListener($source$ source, IWeakEventListener listener) { | |
CurrentManager.ProtectedAddListener(source, listener); | |
} | |
public static void RemoveListener($source$ source, IWeakEventListener listener) { | |
CurrentManager.ProtectedRemoveListener(source, listener); | |
} | |
protected override void StartListening(object source) { | |
(($source$)source).$eventName$ += EventHandler; | |
} | |
protected override void StopListening(object source) { | |
(($source$)source).$eventName$ -= EventHandler; | |
} | |
void EventHandler(object sender, $eventArgs$ e) { | |
base.DeliverEvent(sender, e); | |
} | |
} | |
]]> | |
</Code> | |
</Snippet> | |
</CodeSnippet> | |
</CodeSnippets> |
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