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lightning-sunbird  0.9+nobinonly
nsPrintPreviewListener.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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00003  * ***** BEGIN LICENSE BLOCK *****
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00011  * Software distributed under the License is distributed on an "AS IS" basis,
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00016  * The Original Code is the Mozilla browser.
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00018  * The Initial Developer of the Original Code is
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00023  * Contributor(s):
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00025  * Alternatively, the contents of this file may be used under the terms of
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00038 
00039 #ifndef nsPrintPreviewListener_h__
00040 #define nsPrintPreviewListener_h__
00041 
00042 // Interfaces needed to be included
00043 #include "nsIDOMEventListener.h"
00044 #include "nsIDOMEventTarget.h"
00045 // Helper Classes
00046 #include "nsCOMPtr.h"
00047 
00048 //
00049 // class nsPrintPreviewListener
00050 //
00051 // The class that listens to the chrome events and tells the embedding
00052 // chrome to show context menus, as appropriate. Handles registering itself
00053 // with the DOM with AddChromeListeners() and removing itself with
00054 // RemoveChromeListeners().
00055 //
00056 class nsPrintPreviewListener : public nsIDOMEventListener
00057 
00058 {
00059 public:
00060   NS_DECL_ISUPPORTS
00061   NS_DECL_NSIDOMEVENTLISTENER
00062   
00063   nsPrintPreviewListener(nsIDOMEventTarget* aTarget);
00064 
00065   // Add/remove the relevant listeners, based on what interfaces
00066   // the embedding chrome implements.
00067   nsresult AddListeners();
00068   nsresult RemoveListeners();
00069 
00070 private:
00071 
00072   nsCOMPtr<nsIDOMEventTarget> mEventTarget;
00073 
00074 }; // class nsPrintPreviewListener
00075 
00076 
00077 
00078 #endif /* nsPrintPreviewListener_h__ */