зеркало из https://github.com/mozilla/gecko-dev.git
Convering to GenericModule.
This commit is contained in:
dp%netscape.com
Родитель
f7a9bde3c4
Коммит
c15646baa6
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@ -20,195 +20,27 @@
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* Contributor(s):
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*/
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#include "nsIFactory.h"
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#include "nsISupports.h"
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#include "nsIModule.h"
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#include "nsIGenericFactory.h"
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#include "nsIComponentManager.h"
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#include "nsIServiceManager.h"
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#include "nsURILoader.h"
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#include "nsCOMPtr.h"
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static NS_DEFINE_CID(kURILoaderCID, NS_URI_LOADER_CID);
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////////////////////////////////////////////////////////////////////////
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// Define the contructor function for the objects
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//
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// NOTE: This creates an instance of objects by using the default constructor
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//
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NS_GENERIC_FACTORY_CONSTRUCTOR(nsURILoader)
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// Module implementation for the sample library
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class nsURILoaderModule : public nsIModule
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{
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public:
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nsURILoaderModule();
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virtual ~nsURILoaderModule();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIMODULE
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protected:
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nsresult Initialize();
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void Shutdown();
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PRBool mInitialized;
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nsCOMPtr<nsIGenericFactory> mURILoaderFactory;
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////////////////////////////////////////////////////////////////////////
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// Define a table of CIDs implemented by this module along with other
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// information like the function to create an instance, progid, and
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// class name.
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//
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static nsModuleComponentInfo components[] = {
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{ "Netscape URI Loader Service", NS_URI_LOADER_CID, NS_URI_LOADER_PROGID, nsURILoaderConstructor, },
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};
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nsURILoaderModule::nsURILoaderModule()
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: mInitialized(PR_FALSE)
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{
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NS_INIT_ISUPPORTS();
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}
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nsURILoaderModule::~nsURILoaderModule()
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{
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Shutdown();
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}
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NS_IMPL_ISUPPORTS(nsURILoaderModule, NS_GET_IID(nsIModule))
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// Perform our one-time intialization for this module
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nsresult nsURILoaderModule::Initialize()
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{
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if (mInitialized)
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return NS_OK;
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mInitialized = PR_TRUE;
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return NS_OK;
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}
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// Shutdown this module, releasing all of the module resources
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void nsURILoaderModule::Shutdown()
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{
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// Release the factory object
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mURILoaderFactory = null_nsCOMPtr();
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}
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// Create a factory object for creating instances of aClass.
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NS_IMETHODIMP nsURILoaderModule::GetClassObject(nsIComponentManager *aCompMgr,
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const nsCID& aClass,
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const nsIID& aIID,
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void** r_classObj)
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{
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nsresult rv;
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// Defensive programming: Initialize *r_classObj in case of error below
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if (!r_classObj)
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return NS_ERROR_INVALID_POINTER;
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*r_classObj = NULL;
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// Do one-time-only initialization if necessary
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if (!mInitialized)
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{
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rv = Initialize();
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if (NS_FAILED(rv)) // Initialization failed! yikes!
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return rv;
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}
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// Choose the appropriate factory, based on the desired instance
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// class type (aClass).
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nsCOMPtr<nsIGenericFactory> fact;
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if (aClass.Equals(kURILoaderCID))
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{
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if (!mURILoaderFactory)
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rv = NS_NewGenericFactory(getter_AddRefs(mURILoaderFactory), &nsURILoaderConstructor);
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fact = mURILoaderFactory;
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}
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if (fact)
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rv = fact->QueryInterface(aIID, r_classObj);
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return rv;
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}
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struct Components {
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const char* mDescription;
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const nsID* mCID;
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const char* mProgID;
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};
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// The list of components we register
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static Components gComponents[] = {
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{ "Netscape URI Loader Service", &kURILoaderCID,
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NS_URI_LOADER_PROGID }
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};
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#define NUM_COMPONENTS (sizeof(gComponents) / sizeof(gComponents[0]))
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NS_IMETHODIMP nsURILoaderModule::RegisterSelf(nsIComponentManager *aCompMgr,
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nsIFileSpec* 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 = NS_OK;
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Components* cp = gComponents;
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Components* end = cp + NUM_COMPONENTS;
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while (cp < end)
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{
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rv = aCompMgr->RegisterComponentSpec(*cp->mCID, cp->mDescription,
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cp->mProgID, aPath, PR_TRUE,
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PR_TRUE);
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if (NS_FAILED(rv))
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break;
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cp++;
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}
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return rv;
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}
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NS_IMETHODIMP nsURILoaderModule::UnregisterSelf(nsIComponentManager* aCompMgr,
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nsIFileSpec* aPath,
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const char* registryLocation)
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{
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Components* cp = gComponents;
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Components* end = cp + NUM_COMPONENTS;
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while (cp < end)
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{
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aCompMgr->UnregisterComponentSpec(*cp->mCID, aPath);
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cp++;
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}
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return NS_OK;
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}
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NS_IMETHODIMP nsURILoaderModule::CanUnload(nsIComponentManager *aCompMgr, PRBool *okToUnload)
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{
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if (!okToUnload)
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return NS_ERROR_INVALID_POINTER;
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*okToUnload = PR_FALSE;
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return NS_ERROR_FAILURE;
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}
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//----------------------------------------------------------------------
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static nsURILoaderModule *gModule = NULL;
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extern "C" NS_EXPORT nsresult NSGetModule(nsIComponentManager *servMgr,
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nsIFileSpec* location,
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nsIModule** return_cobj)
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{
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nsresult rv = NS_OK;
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NS_ASSERTION(return_cobj, "Null argument");
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NS_ASSERTION(gModule == NULL, "nsURILoaderModule: Module already created.");
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// Create an initialize the imap module instance
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nsURILoaderModule *module = new nsURILoaderModule();
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if (!module)
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return NS_ERROR_OUT_OF_MEMORY;
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// Increase refcnt and store away nsIModule interface to m in return_cobj
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rv = module->QueryInterface(nsIModule::GetIID(), (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 = nsnull;
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}
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gModule = module; // WARNING: Weak Reference
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return rv;
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}
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////////////////////////////////////////////////////////////////////////
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// Implement the NSGetModule() exported function for your module
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// and the entire implementation of the module object.
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//
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NS_IMPL_NSGETMODULE("nsURILoaderModule", components)
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