Files
Mozilla/mozilla/widget/src/mac/nsRepeater.cpp
dp%netscape.com befa259a88 Landing xpcom20/21 branch.
git-svn-id: svn://10.0.0.236/trunk@32644 18797224-902f-48f8-a5cc-f745e15eee43
1999-05-26 01:38:36 +00:00

148 lines
3.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; 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.
*/
#include "nsRepeater.h"
Repeater* Repeater::sRepeaters = 0;
Repeater* Repeater::sIdlers = 0;
Repeater::Repeater()
{
mRepeating = false;
mIdling = false;
mPrevRptr = 0;
mNextRptr = 0;
mPrevIdlr = 0;
mNextIdlr = 0;
}
Repeater::~Repeater()
{
if (mRepeating) RemoveFromRepeatList();
if (mIdling) RemoveFromIdleList();
}
// protected helper functs
//----------------------------------------------------------------------------
void Repeater::AddToRepeatList()
{
if (sRepeaters)
{
sRepeaters->mPrevRptr = this;
mNextRptr = sRepeaters;
}
sRepeaters = this;
}
//----------------------------------------------------------------------------
void Repeater::RemoveFromRepeatList()
{
if (sRepeaters == this) sRepeaters = mNextRptr;
if (mPrevRptr) mPrevRptr->mNextRptr = mNextRptr;
if (mNextRptr) mNextRptr->mPrevRptr = mPrevRptr;
mPrevRptr = 0;
mNextRptr = 0;
}
//----------------------------------------------------------------------------
void Repeater::AddToIdleList()
{
if (sIdlers)
{
sIdlers->mPrevIdlr = this;
mNextIdlr = sIdlers;
}
sIdlers = this;
}
//----------------------------------------------------------------------------
void Repeater::RemoveFromIdleList()
{
if (sIdlers == this) sIdlers = mNextIdlr;
if (mPrevIdlr) mPrevIdlr->mNextIdlr = mNextIdlr;
if (mNextIdlr) mNextIdlr->mPrevIdlr = mPrevIdlr;
mPrevIdlr = 0;
mNextIdlr = 0;
}
// repeater methods
//----------------------------------------------------------------------------
void Repeater::StartRepeating()
{
if (!mRepeating)
{
AddToRepeatList();
mRepeating = true;
}
}
void Repeater::StopRepeating()
{
if (mRepeating)
{
RemoveFromRepeatList();
mRepeating = false;
}
}
void Repeater::DoRepeaters(const EventRecord &aMacEvent)
{
Repeater* theRepeater = sRepeaters;
while (theRepeater)
{
theRepeater->RepeatAction(aMacEvent);
theRepeater = theRepeater->mNextRptr;
}
}
// idler methods
void Repeater::StartIdling()
{
if (!mIdling)
{
AddToIdleList();
mIdling = true;
}
}
void Repeater::StopIdling()
{
if (mIdling)
{
RemoveFromIdleList();
mIdling = false;
}
}
void Repeater::DoIdlers(const EventRecord &aMacEvent)
{
Repeater* theIdler = sIdlers;
while (theIdler)
{
theIdler->RepeatAction(aMacEvent);
theIdler = theIdler->mNextIdlr;
}
}