mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-02-27 21:00:50 +00:00
make the NS_GetFactory stuff use generic factory code instead of doing it all by hand r=dp
This commit is contained in:
parent
03c290f510
commit
d5ba4ef60f
@ -30,17 +30,44 @@
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//////////////////////////////////////////////////////////////////////
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// GIF Decoder Implementation
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NS_IMPL_ISUPPORTS(GIFDecoder, NS_GET_IID(nsIImgDecoder));
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NS_IMPL_ISUPPORTS1(GIFDecoder, nsIImgDecoder);
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GIFDecoder::GIFDecoder(il_container* aContainer)
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{
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NS_INIT_REFCNT();
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ilContainer = aContainer;
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};
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}
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GIFDecoder::~GIFDecoder(void)
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{
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};
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}
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NS_METHOD
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GIFDecoder::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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nsresult rv;
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if (aOuter) return NS_ERROR_NO_AGGREGATION;
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il_container *ic = new il_container();
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if (!ic) return NS_ERROR_OUT_OF_MEMORY;
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GIFDecoder *decoder = new GIFDecoder(ic);
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if (!decoder) {
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delete ic;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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NS_ADDREF(decoder);
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rv = decoder->QueryInterface(aIID, aResult);
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NS_RELEASE(decoder);
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/* why are we creating and destroying this object for no reason? */
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delete ic; /* is a place holder */
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return rv;
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}
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NS_IMETHODIMP
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GIFDecoder::ImgDInit()
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@ -1,4 +1,4 @@
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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/* -*- 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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@ -45,6 +45,8 @@ public:
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NS_DECL_ISUPPORTS
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static NS_METHOD Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);
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/* stream */
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NS_IMETHOD ImgDInit();
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@ -18,10 +18,8 @@
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* Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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*/
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#include "nsGIFModule.h"
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#include "nsGIFDecoder.h"
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#include "nsIComponentManager.h"
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#include "nsIGenericFactory.h"
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@ -29,186 +27,14 @@
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#include "nsCOMPtr.h"
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static NS_DEFINE_CID(kGIFDecoderCID, NS_GIFDECODER_CID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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//////////////////////////////////////////////////////////////////////
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// Module Global
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//
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// This is used by the module to count object. Constructors and
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// destructors of objects created by this module need to
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// inc/dec the object count for the module. Unload decision will
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// be taken based on this.
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//
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// Constructor:
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// gModule->IncrementObjCount();
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//
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// Descructor:
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// gModule->DecrementObjCount();
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//
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// WARNING: This is weak reference. XPCOM guarantees that this module
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// object will be deleted just before the dll is unloaded. Hence,
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// holding a weak reference is ok.
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static nsGIFModule *gModule = NULL;
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//////////////////////////////////////////////////////////////////////
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// Module entry point
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extern "C" NS_EXPORT nsresult NSGetModule(nsIComponentManager *servMgr,
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nsIFile* aPath,
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nsIModule** return_cobj)
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static nsModuleComponentInfo components[] =
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{
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nsGIFModule *gifModule;
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nsresult rv = NS_OK;
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{ "GIF Decoder",
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NS_GIFDECODER_CID,
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"component://netscape/image/decoder&type=image/gif",
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GIFDecoder::Create }
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};
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NS_ASSERTION(return_cobj, "Null argument");
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NS_ASSERTION(gModule == NULL, "nsGIFModule: Module already created.");
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NS_IMPL_NSGETMODULE("nsGIFModule", components)
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gifModule = new nsGIFModule;
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if (gifModule == NULL) return NS_ERROR_OUT_OF_MEMORY;
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rv = gifModule->QueryInterface(NS_GET_IID(nsIModule), (void **)return_cobj);
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if (NS_FAILED(rv))
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{
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delete gifModule;
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gifModule = NULL;
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}
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// WARNING: Weak Reference
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gModule = gifModule;
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return rv;
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}
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//////////////////////////////////////////////////////////////////////
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// GIF Decoder Factory using nsIGenericFactory
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static NS_IMETHODIMP
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nsGIFDecoderCreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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GIFDecoder *gifdec = NULL;
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*aResult = NULL;
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il_container* ic = NULL;
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if (aOuter && !aIID.Equals(kISupportsIID))
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return NS_NOINTERFACE;
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ic = new il_container();
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if (!ic)
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{
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return NS_ERROR_OUT_OF_MEMORY;
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}
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gifdec = new GIFDecoder(ic);
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if (!gifdec)
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{
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delete ic;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsresult res = gifdec->QueryInterface(aIID, aResult);
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if (NS_FAILED(res))
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{
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*aResult = NULL;
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delete gifdec;
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}
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delete ic; /* is a place holder */
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return res;
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}
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//////////////////////////////////////////////////////////////////////
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// GIF Decoder Module Implementation
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NS_IMPL_ISUPPORTS(nsGIFModule, NS_GET_IID(nsIModule))
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nsGIFModule::nsGIFModule(void)
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: mObjCount(-1), mClassObject(NULL)
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{
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NS_INIT_ISUPPORTS();
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}
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nsGIFModule::~nsGIFModule(void)
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{
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NS_ASSERTION(mObjCount <= 0, "Module released while having outstanding objects.");
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if (mClassObject)
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{
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int refcnt;
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NS_RELEASE2(mClassObject, refcnt);
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NS_ASSERTION(refcnt == 0, "nsGIFModule::~nsGIFModule() ClassObject refcount nonzero");
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}
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}
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//
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// The class object for us is just the factory and nothing more.
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//
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NS_IMETHODIMP
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nsGIFModule::GetClassObject(nsIComponentManager *aCompMgr, const nsCID & aClass,
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const nsIID &aIID, void **r_classObj)
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{
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nsresult rv;
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if( !aClass.Equals(kGIFDecoderCID))
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return NS_ERROR_FACTORY_NOT_REGISTERED;
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// If this aint the first time, return the cached class object
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if (mClassObject == NULL)
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{
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nsCOMPtr<nsIGenericFactory> fact;
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rv = NS_NewGenericFactory(getter_AddRefs(fact), nsGIFDecoderCreateInstance);
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if (NS_FAILED(rv)) return rv;
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// Store the class object in our global
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rv = fact->QueryInterface(NS_GET_IID(nsISupports), (void **)&mClassObject);
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if (NS_FAILED(rv)) return rv;
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}
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rv = mClassObject->QueryInterface(aIID, r_classObj);
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return rv;
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}
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NS_IMETHODIMP
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nsGIFModule::RegisterSelf(nsIComponentManager *aCompMgr,
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nsIFile* aPath,
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const char *registryLocation,
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const char *componentType)
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{
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nsresult rv;
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rv = aCompMgr->RegisterComponentSpec(kGIFDecoderCID,
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"Netscape GIFDec",
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"component://netscape/image/decoder&type=image/gif",
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aPath, PR_TRUE, PR_TRUE);
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return rv;
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}
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NS_IMETHODIMP
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nsGIFModule::UnregisterSelf(nsIComponentManager *aCompMgr,
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nsIFile* aPath,
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const char *registryLocation)
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{
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nsresult rv;
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rv = aCompMgr->UnregisterComponentSpec(kGIFDecoderCID, aPath);
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return rv;
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}
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NS_IMETHODIMP
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nsGIFModule::CanUnload(nsIComponentManager *aCompMgr, PRBool *okToUnload)
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{
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if (mObjCount < 0)
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{
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// Dll doesn't count objects.
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return NS_ERROR_FAILURE;
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}
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PRBool unloadable = PR_FALSE;
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if (mObjCount == 0)
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{
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// This dll can be unloaded now
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unloadable = PR_TRUE;
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}
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if (okToUnload) *okToUnload = unloadable;
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return NS_OK;
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}
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//////////////////////////////////////////////////////////////////////
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@ -1,45 +0,0 @@
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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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 "nsIModule.h"
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class nsGIFModule : public nsIModule
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{
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public:
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NS_DECL_ISUPPORTS
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// Construction, Init and desstruction
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nsGIFModule();
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virtual ~nsGIFModule();
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// nsIModule Interfaces
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NS_DECL_NSIMODULE
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// Facility for counting object instances
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int IncrementObjCount() { if (mObjCount == -1) mObjCount = 0; return ++mObjCount; }
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int DecrementObjCount() { if (mObjCount == -1) mObjCount = 0; return --mObjCount; }
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int GetObjCount() { return mObjCount; }
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private:
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int mObjCount;
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nsISupports * mClassObject;
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};
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@ -42,7 +42,35 @@ PNGDecoder::~PNGDecoder(void)
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{
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};
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NS_IMPL_ISUPPORTS(PNGDecoder, NS_GET_IID(nsIImgDecoder))
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NS_IMPL_ISUPPORTS1(PNGDecoder, nsIImgDecoder)
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NS_METHOD
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PNGDecoder::Create(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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nsresult rv;
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if (aOuter) return NS_ERROR_NO_AGGREGATION;
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il_container *ic = new il_container();
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if (!ic) return NS_ERROR_OUT_OF_MEMORY;
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PNGDecoder *decoder = new PNGDecoder(ic);
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if (!decoder) {
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delete ic;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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NS_ADDREF(decoder);
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rv = decoder->QueryInterface(aIID, aResult);
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NS_RELEASE(decoder);
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/* why are we creating and destroying this object for no reason? */
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delete ic; /* is a place holder */
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return rv;
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}
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/*----------------------------------------------------*/
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// api functions
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@ -37,6 +37,8 @@ public:
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NS_DECL_ISUPPORTS
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static NS_METHOD Create(nsISupports *aOuter, const nsIID &aIID, void **aResult);
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/* stream */
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NS_IMETHOD ImgDInit();
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@ -18,10 +18,8 @@
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* Rights Reserved.
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*
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* Contributor(s):
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* Pierre Phaneuf <pp@ludusdesign.com>
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*/
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#include "nsPNGModule.h"
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#include "nsPNGDecoder.h"
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#include "nsIComponentManager.h"
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#include "nsIGenericFactory.h"
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@ -29,184 +27,14 @@
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#include "nsCOMPtr.h"
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static NS_DEFINE_CID(kPNGDecoderCID, NS_PNGDECODER_CID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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//////////////////////////////////////////////////////////////////////
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// Module Global
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//
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// This is used by the module to count object. Constructors and
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// destructors of objects created by this module need to
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// inc/dec the object count for the module. Unload decision will
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// be taken based on this.
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//
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// Constructor:
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// gModule->IncrementObjCount();
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//
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// Descructor:
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// gModule->DecrementObjCount();
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//
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// WARNING: This is weak reference. XPCOM guarantees that this module
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// object will be deleted just before the dll is unloaded. Hence,
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// holding a weak reference is ok.
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static nsPNGModule *gModule = NULL;
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//////////////////////////////////////////////////////////////////////
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// Module entry point
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extern "C" NS_EXPORT nsresult NSGetModule(nsIComponentManager *servMgr,
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nsIFile* aPath,
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nsIModule** return_cobj)
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static nsModuleComponentInfo components[] =
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{
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nsPNGModule *module;
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nsresult rv = NS_OK;
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{ "PNG Decoder",
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NS_PNGDECODER_CID,
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"component://netscape/image/decoder&type=image/png",
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PNGDecoder::Create }
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};
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NS_ASSERTION(return_cobj, "Null argument");
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NS_ASSERTION(gModule == NULL, "nsPNGModule: Module already created.");
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NS_IMPL_NSGETMODULE("nsPNGModule", components)
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module = new nsPNGModule;
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if (module == NULL) return NS_ERROR_OUT_OF_MEMORY;
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rv = module->QueryInterface(NS_GET_IID(nsIModule), (void **)return_cobj);
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if (NS_FAILED(rv))
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{
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delete module;
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module = NULL;
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}
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// WARNING: Weak Reference
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gModule = module;
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return rv;
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}
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//////////////////////////////////////////////////////////////////////
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// PNG Decoder Factory using nsIGenericFactory
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static NS_IMETHODIMP
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nsPNGDecoderCreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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PNGDecoder *dec = NULL;
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*aResult = NULL;
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il_container* ic = NULL;
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if (aOuter && !aIID.Equals(kISupportsIID))
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return NS_NOINTERFACE;
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ic = new il_container();
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if (!ic)
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{
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return NS_ERROR_OUT_OF_MEMORY;
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}
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dec = new PNGDecoder(ic);
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if (!dec)
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{
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delete ic;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsresult res = dec->QueryInterface(aIID, aResult);
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if (NS_FAILED(res))
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{
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*aResult = NULL;
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delete dec;
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}
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delete ic; /* is a place holder */
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return res;
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}
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//////////////////////////////////////////////////////////////////////
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// PNG Decoder Module Implementation
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NS_IMPL_ISUPPORTS(nsPNGModule, NS_GET_IID(nsIModule))
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nsPNGModule::nsPNGModule(void)
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: mObjCount(-1), mClassObject(NULL)
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{
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NS_INIT_ISUPPORTS();
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}
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nsPNGModule::~nsPNGModule(void)
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{
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NS_ASSERTION(mObjCount <= 0, "Module released while having outstanding objects.");
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if (mClassObject)
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{
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int refcnt;
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NS_RELEASE2(mClassObject, refcnt);
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NS_ASSERTION(refcnt == 0, "nsPNGModule::~nsPNGModule() ClassObject refcount nonzero");
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}
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}
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//
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// The class object for us is just the factory and nothing more.
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//
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NS_IMETHODIMP
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nsPNGModule::GetClassObject(nsIComponentManager *aCompMgr, const nsCID & aClass,
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const nsIID &aIID, void **r_classObj)
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{
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nsresult rv;
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if( !aClass.Equals(kPNGDecoderCID))
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return NS_ERROR_FACTORY_NOT_REGISTERED;
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// If this aint the first time, return the cached class object
|
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if (mClassObject == NULL)
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{
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nsCOMPtr<nsIGenericFactory> fact;
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rv = NS_NewGenericFactory(getter_AddRefs(fact), nsPNGDecoderCreateInstance);
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if (NS_FAILED(rv)) return rv;
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// Store the class object in our global
|
||||
rv = fact->QueryInterface(NS_GET_IID(nsISupports), (void **)&mClassObject);
|
||||
if (NS_FAILED(rv)) return rv;
|
||||
}
|
||||
|
||||
rv = mClassObject->QueryInterface(aIID, r_classObj);
|
||||
return rv;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsPNGModule::RegisterSelf(nsIComponentManager *aCompMgr,
|
||||
nsIFile* aPath,
|
||||
const char *registryLocation,
|
||||
const char *componentType)
|
||||
{
|
||||
nsresult rv;
|
||||
rv = aCompMgr->RegisterComponentSpec(kPNGDecoderCID,
|
||||
"Netscape PNGDec",
|
||||
"component://netscape/image/decoder&type=image/png",
|
||||
aPath, PR_TRUE, PR_TRUE);
|
||||
return rv;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsPNGModule::UnregisterSelf(nsIComponentManager *aCompMgr,
|
||||
nsIFile* aPath,
|
||||
const char *registryLocation)
|
||||
{
|
||||
nsresult rv;
|
||||
rv = aCompMgr->UnregisterComponentSpec(kPNGDecoderCID, aPath);
|
||||
return rv;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsPNGModule::CanUnload(nsIComponentManager *aCompMgr, PRBool *okToUnload)
|
||||
{
|
||||
if (mObjCount < 0)
|
||||
{
|
||||
// Dll doesn't count objects.
|
||||
return NS_ERROR_FAILURE;
|
||||
}
|
||||
|
||||
PRBool unloadable = PR_FALSE;
|
||||
if (mObjCount == 0)
|
||||
{
|
||||
// This dll can be unloaded now
|
||||
unloadable = PR_TRUE;
|
||||
}
|
||||
|
||||
if (okToUnload) *okToUnload = unloadable;
|
||||
return NS_OK;
|
||||
}
|
||||
|
@ -1,49 +0,0 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Netscape Public
|
||||
* License Version 1.1 (the "License"); you may not use this file
|
||||
* except in compliance with the License. You may obtain a copy of
|
||||
* the License at http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS
|
||||
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
||||
* implied. See the License for the specific language governing
|
||||
* rights and limitations under the License.
|
||||
*
|
||||
* The Original Code is mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Netscape
|
||||
* Communications Corporation. Portions created by Netscape are
|
||||
* Copyright (C) 1998 Netscape Communications Corporation. All
|
||||
* Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
*/
|
||||
#ifndef nsPNGModule_h___
|
||||
#define nsPNGModule_h___
|
||||
|
||||
#include "nsIModule.h"
|
||||
|
||||
class nsPNGModule : public nsIModule
|
||||
{
|
||||
public:
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
// Construction, Init and desstruction
|
||||
nsPNGModule();
|
||||
virtual ~nsPNGModule();
|
||||
|
||||
// nsIModule Interfaces
|
||||
NS_DECL_NSIMODULE
|
||||
|
||||
// Facility for counting object instances
|
||||
int IncrementObjCount() { if (mObjCount == -1) mObjCount = 0; return ++mObjCount; }
|
||||
int DecrementObjCount() { if (mObjCount == -1) mObjCount = 0; return --mObjCount; }
|
||||
int GetObjCount() { return mObjCount; }
|
||||
|
||||
private:
|
||||
int mObjCount;
|
||||
nsISupports* mClassObject;
|
||||
};
|
||||
|
||||
#endif /* nsPNGModule_h___ */
|
Loading…
x
Reference in New Issue
Block a user