widget/public/nsIEventListener.h
author mats.palmgren@bredband.net
Thu, 17 May 2007 20:49:14 -0700
changeset 1585 633138510b5ae5e25a3bfe66d2db572dc361d448
parent 1 9b2a99adc05e53cd4010de512f50118594756650
child 18407 06c8522070238b7622c6e901b1bb33c5a1f769f1
permissions -rw-r--r--
Move nsIDocShellTreeItem::childOffset to nsDocShell and remove all uses except internally by nsDocShell (it should be removed eventually). b=376562 r=Olli.Pettay sr=bzbarsky

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#ifndef nsIEventListener_h__
#define nsIEventListener_h__

#include "nsISupports.h"

class nsGUIEvent;

/**
 * Event listener interface.
 * Alternative to a callback for recieving events.
 */

// {c83f6b80-d7ce-11d2-8360-c4c894c4917c}
#define NS_IEVENTLISTENER_IID \
{ 0xc83f6b80, 0xd7ce, 0x11d2, { 0x83, 0x60, 0xc4, 0xc8, 0x94, 0xc4, 0x91, 0x7c } }

class nsIEventListener : public nsISupports {
public:
  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IEVENTLISTENER_IID)
  
 /**
  * Processes all events. 
  * If a mouse listener is registered this method will not process mouse events. 
  * @param anEvent the event to process. See nsGUIEvent.h for event types.
  */

  virtual nsEventStatus ProcessEvent(const nsGUIEvent & anEvent) = 0;

};

NS_DEFINE_STATIC_IID_ACCESSOR(nsIEventListener, NS_IEVENTLISTENER_IID)

#endif // nsIEventListener_h__