gecko-dev/layout/printing/nsPrintPreviewListener.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
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* The Original Code is the Mozilla browser.
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* The Initial Developer of the Original Code is
* Netscape Communications, Inc.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
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* Contributor(s):
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#ifndef nsPrintPreviewListener_h__
#define nsPrintPreviewListener_h__
// Interfaces needed to be included
#include "nsIDOMEventListener.h"
#include "nsIDOMEventTarget.h"
// Helper Classes
#include "nsCOMPtr.h"
//
// class nsPrintPreviewListener
//
// The class that listens to the chrome events and tells the embedding
// chrome to show context menus, as appropriate. Handles registering itself
// with the DOM with AddChromeListeners() and removing itself with
// RemoveChromeListeners().
//
class nsPrintPreviewListener : public nsIDOMEventListener
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
nsPrintPreviewListener(nsIDOMEventTarget* aTarget);
// Add/remove the relevant listeners, based on what interfaces
// the embedding chrome implements.
nsresult AddListeners();
nsresult RemoveListeners();
private:
nsCOMPtr<nsIDOMEventTarget> mEventTarget;
}; // class nsPrintPreviewListener
#endif /* nsPrintPreviewListener_h__ */