/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape Public License * Version 1.0 (the "NPL"); you may not use this file except in * compliance with the NPL. You may obtain a copy of the NPL at * http://www.mozilla.org/NPL/ * * Software distributed under the NPL is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL * for the specific language governing rights and limitations under the * NPL. * * The Initial Developer of this code under the NPL is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All Rights * Reserved. */ #ifndef _ChngNtfy_H_ #define _ChngNtfy_H_ #include "ptrarray.h" class ChangeListener; class MessageDBView; class ChangeAnnouncer : public XPPtrArray // array of ChangeListeners { public: ChangeAnnouncer(); virtual ~ChangeAnnouncer(); virtual XP_Bool AddListener(ChangeListener *listener); virtual XP_Bool RemoveListener(ChangeListener *listener); // convenience routines to notify all our ChangeListeners void NotifyViewChangeAll(MSG_ViewIndex startIndex, int32 numChanged, MSG_NOTIFY_CODE changeType, ChangeListener *instigator); void NotifyViewStartChangeAll(MSG_ViewIndex startIndex, int32 numChanged, MSG_NOTIFY_CODE changeType, ChangeListener *instigator); void NotifyViewEndChangeAll(MSG_ViewIndex startIndex, int32 numChanged, MSG_NOTIFY_CODE changeType, ChangeListener *instigator); void NotifyKeyChangeAll(MessageKey keyChanged, int32 flags, ChangeListener *instigator); void NotifyAnnouncerGoingAway(ChangeAnnouncer *instigator); void NotifyAnnouncerChangingView(ChangeAnnouncer *instigator, MessageDBView *newView); }; class ChangeListener { public: ChangeListener(); virtual ~ChangeListener(); // do nothing notification routines - subclass to do something. // New notification routines need to be added here as do nothing routines virtual void OnViewChange(MSG_ViewIndex /*startInd*/, int32 /*numChanged*/, MSG_NOTIFY_CODE /* changeType */, ChangeListener * /*instigator*/); virtual void OnViewStartChange(MSG_ViewIndex /*startInd*/, int32 /*numChanged*/, MSG_NOTIFY_CODE /* changeType */, ChangeListener * /*instigator*/) ; virtual void OnViewEndChange(MSG_ViewIndex /*startInd*/, int32 /*numChanged*/, MSG_NOTIFY_CODE /* changeType */, ChangeListener * /*instigator*/) ; virtual void OnKeyChange(MessageKey /*keyChanged*/, int32 /*flags*/, ChangeListener * /*instigator*/) ; virtual void OnAnnouncerGoingAway(ChangeAnnouncer * /*instigator*/) ; virtual void OnAnnouncerChangingView(ChangeAnnouncer * /* instigator */, MessageDBView * /* view */) ; }; #endif