108 lines
3.7 KiB
C++
108 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* - David W. Hyatt (hyatt@netscape.com)
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* - Mike Pinkerton (pinkerton@netscape.com)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsXBLWindowHandler_h__
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#define nsXBLWindowHandler_h__
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#include "prtypes.h"
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#include "nsError.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "nsXBLPrototypeHandler.h"
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class nsIDOMEventReceiver;
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class nsIDOMElement;
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class nsIDOMEvent;
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class nsIAtom;
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class nsIXBLDocumentInfo;
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class nsXBLSpecialDocInfo;
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//
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// class nsXBLWindowHandler
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//
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// A virtual base class that all window-level event handlers inherit
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// from. Provides the code to parse and walk the XBL bindings.
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//
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class nsXBLWindowHandler
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{
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public:
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nsXBLWindowHandler(nsIDOMElement* aElement, nsIDOMEventReceiver* aReceiver);
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virtual ~nsXBLWindowHandler();
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protected:
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// are we working with editor or browser?
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PRBool IsEditor() ;
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// lazily load the handlers
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virtual nsresult EnsureHandlers();
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// walk the handlers, looking for one to handle the event
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virtual nsresult WalkHandlersInternal(nsIDOMEvent* aKeyEvent,
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nsIAtom* aEventType,
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nsXBLPrototypeHandler* aHandler);
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// does the handler care about the particular event?
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virtual PRBool EventMatched(nsXBLPrototypeHandler* inHandler,
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nsIAtom* inEventType,
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nsIDOMEvent* inEvent) = 0;
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nsIDOMElement* mElement; // weak ref
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nsIDOMEventReceiver* mReceiver; // weak ref
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// these are not owning references; the prototype handlers are owned
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// by the prototype bindings which are owned by the docinfo.
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nsXBLPrototypeHandler* mHandler; // XP bindings
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nsXBLPrototypeHandler* mPlatformHandler; // platform-specific bindings
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nsXBLPrototypeHandler* mUserHandler; // user-specific bindings
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static nsXBLSpecialDocInfo* sXBLSpecialDocInfo; // holds document info about bindings
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private:
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static PRUint32 sRefCnt;
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}; // class nsXBLWindowHandler
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#endif
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