mirror of
https://github.com/mozilla/gecko-dev.git
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142 lines
3.5 KiB
C++
142 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "ilISystemServices.h"
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#include "nsITimer.h"
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#include "prtypes.h"
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#include "prmem.h"
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#include "nsCRT.h"
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class ImageSystemServicesImpl : public ilISystemServices {
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public:
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static ImageSystemServicesImpl *sSS;
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ImageSystemServicesImpl();
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virtual ~ImageSystemServicesImpl();
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NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
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NS_DECL_ISUPPORTS
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virtual void * SetTimeout(ilTimeoutCallbackFunction aFunc,
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void * aClosure, PRUint32 aMsecs);
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virtual void ClearTimeout(void *aTimerID);
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};
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typedef struct {
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ilTimeoutCallbackFunction mFunc;
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void *mClosure;
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} TimerClosure;
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ImageSystemServicesImpl* ImageSystemServicesImpl::sSS = nsnull;
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ImageSystemServicesImpl::ImageSystemServicesImpl()
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{
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NS_INIT_REFCNT();
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}
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ImageSystemServicesImpl::~ImageSystemServicesImpl()
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{
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}
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NS_IMPL_ISUPPORTS1(ImageSystemServicesImpl, ilISystemServices)
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static
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void
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timer_callback (nsITimer *aTimer, void *aClosure)
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{
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TimerClosure *tc = (TimerClosure *)aClosure;
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(*tc->mFunc)(tc->mClosure);
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NS_RELEASE(aTimer);
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PR_DELETE(tc);
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}
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void *
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ImageSystemServicesImpl::SetTimeout(ilTimeoutCallbackFunction aFunc,
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void * aClosure, PRUint32 aMsecs)
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{
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nsITimer *timer;
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TimerClosure *tc;
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nsresult rv;
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rv = nsComponentManager::CreateInstance("@mozilla.org/timer;1",
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nsnull,
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NS_GET_IID(nsITimer),
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(void**)&timer);
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if (NS_FAILED(rv)) {
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return nsnull;
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}
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tc = (TimerClosure *)PR_NEWZAP(TimerClosure);
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if (tc == nsnull) {
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NS_RELEASE(timer);
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return nsnull;
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}
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tc->mFunc = aFunc;
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tc->mClosure = aClosure;
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if (timer->Init(timer_callback, (void *)tc, aMsecs) != NS_OK) {
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NS_RELEASE(timer);
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PR_DELETE(tc);
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return nsnull;
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}
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return (void *)timer;
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}
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void
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ImageSystemServicesImpl::ClearTimeout(void *aTimerID)
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{
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nsITimer* timer = (nsITimer *)aTimerID;
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void* closure = timer->GetClosure();
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timer->Cancel();
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NS_RELEASE(timer);
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PR_DELETE(closure);
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}
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extern "C" NS_GFX_(nsresult)
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NS_NewImageSystemServices(ilISystemServices **aInstancePtrResult)
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{
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NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
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if (nsnull == aInstancePtrResult) {
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return NS_ERROR_NULL_POINTER;
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}
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if (ImageSystemServicesImpl::sSS == nsnull) {
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ImageSystemServicesImpl::sSS = new ImageSystemServicesImpl();
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}
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if (ImageSystemServicesImpl::sSS == nsnull) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return ImageSystemServicesImpl::sSS->QueryInterface(NS_GET_IID(ilISystemServices),
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(void **) aInstancePtrResult);
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}
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