mirror of
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147 lines
4.3 KiB
C++
147 lines
4.3 KiB
C++
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "msg.h"
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#include "chngntfy.h"
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ChangeAnnouncer::ChangeAnnouncer()
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{
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}
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ChangeAnnouncer::~ChangeAnnouncer()
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{
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XP_ASSERT(GetSize() == 0); // better not be any listeners, because we're going away.
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}
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XP_Bool ChangeAnnouncer::AddListener(ChangeListener *listener)
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{
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XPPtrArray::Add((void *) listener);
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return TRUE;
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}
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XP_Bool ChangeAnnouncer::RemoveListener(ChangeListener *listener)
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{
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for (int i = 0; i < GetSize(); i++)
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{
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if ((ChangeListener *) GetAt(i) == listener)
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{
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RemoveAt(i);
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return TRUE;
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}
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}
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return FALSE;
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}
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// convenience routines to notify all our ChangeListeners
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void ChangeAnnouncer::NotifyViewChangeAll(MSG_ViewIndex startIndex, int32 numChanged,
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MSG_NOTIFY_CODE changeType, ChangeListener *instigator)
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{
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for (int i = 0; i < GetSize(); i++)
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{
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ChangeListener *changeListener = (ChangeListener *) GetAt(i);
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changeListener->OnViewChange(startIndex, numChanged, changeType,
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instigator);
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}
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}
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// convenience routines to notify all our ChangeListeners
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void ChangeAnnouncer::NotifyViewStartChangeAll(MSG_ViewIndex startIndex, int32 numChanged,
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MSG_NOTIFY_CODE changeType, ChangeListener *instigator)
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{
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for (int i = 0; i < GetSize(); i++)
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{
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ChangeListener *changeListener = (ChangeListener *) GetAt(i);
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changeListener->OnViewStartChange(startIndex, numChanged, changeType,
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instigator);
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}
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}
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// convenience routines to notify all our ChangeListeners
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void ChangeAnnouncer::NotifyViewEndChangeAll(MSG_ViewIndex startIndex, int32 numChanged,
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MSG_NOTIFY_CODE changeType, ChangeListener *instigator)
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{
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for (int i = 0; i < GetSize(); i++)
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{
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ChangeListener *changeListener = (ChangeListener *) GetAt(i);
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changeListener->OnViewEndChange(startIndex, numChanged, changeType,
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instigator);
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}
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}
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void ChangeAnnouncer::NotifyKeyChangeAll(MessageKey keyChanged, int32 flags,
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ChangeListener *instigator)
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{
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for (int i = 0; i < GetSize(); i++)
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{
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ChangeListener *changeListener = (ChangeListener *) GetAt(i);
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changeListener->OnKeyChange(keyChanged, flags, instigator);
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}
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}
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void ChangeAnnouncer::NotifyAnnouncerGoingAway(ChangeAnnouncer *instigator)
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{
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if (instigator == NULL)
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instigator = this; // not sure about this - should listeners even care?
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for (int i = 0; i < GetSize(); i++)
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{
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ChangeListener *changeListener = (ChangeListener *) GetAt(i);
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changeListener->OnAnnouncerGoingAway(instigator);
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}
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}
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void ChangeAnnouncer::NotifyAnnouncerChangingView(ChangeAnnouncer *instigator, MessageDBView *newView)
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{
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if (instigator == NULL)
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instigator = this; // not sure about this - should listeners even care?
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for (int i = 0; i < GetSize(); i++)
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{
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ChangeListener *changeListener = (ChangeListener *) GetAt(i);
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changeListener->OnAnnouncerChangingView(instigator, newView);
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}
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}
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ChangeListener::ChangeListener()
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{
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}
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ChangeListener::~ChangeListener()
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{
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}
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// virtual inlines...
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void ChangeListener::OnViewChange(MSG_ViewIndex /*startInd*/, int32 /*numChanged*/,
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MSG_NOTIFY_CODE /* changeType */, ChangeListener * /*instigator*/) {}
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void ChangeListener::OnViewStartChange(MSG_ViewIndex /*startInd*/, int32 /*numChanged*/,
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MSG_NOTIFY_CODE /* changeType */, ChangeListener * /*instigator*/) {}
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void ChangeListener::OnViewEndChange(MSG_ViewIndex /*startInd*/, int32 /*numChanged*/,
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MSG_NOTIFY_CODE /* changeType */, ChangeListener * /*instigator*/) {}
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void ChangeListener::OnKeyChange(MessageKey /*keyChanged*/, int32 /*flags*/,
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ChangeListener * /*instigator*/) {}
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void ChangeListener::OnAnnouncerGoingAway(ChangeAnnouncer * /*instigator*/) {}
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void ChangeListener::OnAnnouncerChangingView(ChangeAnnouncer * /* instigator */, MessageDBView * /* view */) {}
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