fix bug 10434, memory leak detection, r=sfraser
git-svn-id: svn://10.0.0.236/trunk@50928 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
morse%netscape.com
@@ -25,130 +25,331 @@
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#include "nsEditorCID.h"
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#include "nsEditorShell.h" // for the CID
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#include "nsEditorShellFactory.h"
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#include "nsEditor.h" // for gInstanceCount
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#include "nsEditorFactory.h"
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#include "nsIModule.h"
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#include "nsIGenericFactory.h"
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#ifdef ENABLE_EDITOR_API_LOG
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#include "nsHTMLEditorLog.h"
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#endif // ENABLE_EDITOR_API_LOG
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static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
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static NS_DEFINE_CID(kHTMLEditorCID, NS_HTMLEDITOR_CID);
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static NS_DEFINE_CID(kEditorShellCID, NS_EDITORSHELL_CID);
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static NS_DEFINE_IID(kHTMLEditorCID, NS_HTMLEDITOR_CID);
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static NS_DEFINE_IID(kEditorShellCID, NS_EDITORSHELL_CID);
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/*
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we must be good providers of factories etc. this is where to put ALL editor exports
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*/
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//BEGIN EXPORTS
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extern "C" NS_EXPORT nsresult NSGetFactory(nsISupports * aServMgr,
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const nsCID & aClass,
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const char * aClassName,
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const char * aProgID,
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nsIFactory ** aFactory)
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// Module implementation
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class nsEditorModule : public nsIModule
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{
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if (nsnull == aFactory) {
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return NS_ERROR_NULL_POINTER;
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public:
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nsEditorModule();
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virtual ~nsEditorModule();
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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> mEditorFactory;
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nsCOMPtr<nsIGenericFactory> mEditorShellFactory;
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};
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//----------------------------------------------------------------------
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nsEditorModule::nsEditorModule()
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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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nsEditorModule::~nsEditorModule()
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{
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Shutdown();
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}
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NS_IMPL_ISUPPORTS(nsEditorModule, NS_GET_IID(nsIModule))
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// Perform our one-time intialization for this module
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nsresult
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nsEditorModule::Initialize()
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{
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if (mInitialized) {
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return NS_OK;
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}
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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
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nsEditorModule::Shutdown()
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{
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// Release the factory objects
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mEditorFactory = nsnull;
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mEditorShellFactory = nsnull;
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}
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static NS_IMETHODIMP
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CreateNewEditor(nsISupports* aOuter, REFNSIID aIID, void **aResult)
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{
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if (!aResult) {
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return NS_ERROR_INVALID_POINTER;
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}
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if (aOuter) {
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*aResult = nsnull;
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return NS_ERROR_NO_AGGREGATION;
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}
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// XXX Fix me.
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// XXX Need to cast to interface first to avoid "ambiguous conversion..." error
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// XXX because of multiple nsISupports in the class hierarchy
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nsISupports *inst;
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#ifdef ENABLE_EDITOR_API_LOG
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inst = (nsISupports *)(nsIHTMLEditor*)new nsHTMLEditorLog();
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#else
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inst = (nsISupports *)(nsIHTMLEditor*)new nsHTMLEditor();
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#endif // ENABLE_EDITOR_API_LOG
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if (inst == NULL) {
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*aResult = nsnull;
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return NS_ERROR_OUT_OF_MEMORY;
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}
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NS_ADDREF(inst);
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nsresult rv = inst->QueryInterface(aIID, aResult);
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if (NS_FAILED(rv)) {
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*aResult = nsnull;
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}
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NS_RELEASE(inst); /* get rid of extra refcnt */
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return rv;
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}
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static NS_IMETHODIMP
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CreateNewEditorShell(nsISupports* aOuter, REFNSIID aIID, void **aResult)
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{
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if (!aResult) {
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return NS_ERROR_INVALID_POINTER;
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}
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if (aOuter) {
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*aResult = nsnull;
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return NS_ERROR_NO_AGGREGATION;
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}
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nsIEditorShell* inst = nsnull;
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nsresult rv = NS_NewEditorShell(&inst);
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if (NS_FAILED(rv)) {
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*aResult = nsnull;
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return rv;
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}
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rv = inst->QueryInterface(aIID, aResult);
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if (NS_FAILED(rv)) {
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*aResult = nsnull;
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}
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NS_RELEASE(inst); /* get rid of extra refcnt */
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return rv;
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}
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// Create a factory object for creating instances of aClass.
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NS_IMETHODIMP
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nsEditorModule::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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}
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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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rv = Initialize();
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if (NS_FAILED(rv)) {
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// Initialization failed! yikes!
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return rv;
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}
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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(kHTMLEditorCID)) {
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if (!mEditorFactory) {
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// Create and save away the factory object for creating
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// new instances of EditorFactory. This way if we are called
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// again for the factory, we won't need to create a new
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// one.
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rv = NS_NewGenericFactory(getter_AddRefs(mEditorFactory),
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CreateNewEditor);
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}
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fact = mEditorFactory;
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}
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else if (aClass.Equals(kEditorShellCID)) {
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if (!mEditorShellFactory) {
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// Create and save away the factory object for creating
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// new instances of EditorShellFactory. This way if we are called
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// again for the factory, we won't need to create a new
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// one.
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rv = NS_NewGenericFactory(getter_AddRefs(mEditorShellFactory),
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CreateNewEditorShell);
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}
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fact = mEditorShellFactory;
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}
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else {
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rv = NS_ERROR_FACTORY_NOT_REGISTERED;
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#ifdef DEBUG
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char* cs = aClass.ToString();
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printf("+++ nsEditorModule: unable to create factory for %s\n", cs);
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nsCRT::free(cs);
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#endif
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}
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if (fact) {
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rv = fact->QueryInterface(aIID, r_classObj);
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}
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return rv;
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}
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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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{ "HTML Editor", &kHTMLEditorCID,
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"component://netscape/editor/htmleditor", },
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{ "Editor Shell Component", &kEditorShellCID,
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"component://netscape/editor/editorshell", },
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{ "Editor Shell Spell Checker", &kEditorShellCID,
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"component://netscape/editor/editorspellcheck", },
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};
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#define NUM_COMPONENTS (sizeof(gComponents) / sizeof(gComponents[0]))
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NS_IMETHODIMP
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nsEditorModule::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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#ifdef DEBUG
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printf("*** Registering Editor components\n");
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#endif
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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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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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#ifdef DEBUG
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printf("nsEditorModule: unable to register %s component => %x\n",
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cp->mDescription, rv);
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#endif
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break;
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}
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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
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nsEditorModule::UnregisterSelf(nsIComponentManager* aCompMgr,
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nsIFileSpec* aPath,
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const char* registryLocation)
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{
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#ifdef DEBUG
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printf("*** Unregistering Editor components\n");
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#endif
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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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nsresult rv = aCompMgr->UnregisterComponentSpec(*cp->mCID, aPath);
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if (NS_FAILED(rv)) {
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#ifdef DEBUG
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printf("nsEditorModule: unable to unregister %s component => %x\n",
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cp->mDescription, rv);
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#endif
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}
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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
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nsEditorModule::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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}
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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 nsEditorModule *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_ENSURE_ARG_POINTER(return_cobj);
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NS_ENSURE_NOT(gModule, NS_ERROR_FAILURE);
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// Create and initialize the module instance
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nsEditorModule *m = new nsEditorModule();
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if (!m) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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// Increase refcnt and store away nsIModule interface to m in return_cobj
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rv = m->QueryInterface(NS_GET_IID(nsIModule), (void**)return_cobj);
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if (NS_FAILED(rv)) {
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delete m;
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m = nsnull;
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}
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gModule = m; // WARNING: Weak Reference
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return rv;
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}
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//!!!!!! This is obsolete is needs to be removed. It should be removed after the calls to
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//!!!!!! it are removed.
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//if more than one person asks for the monitor at the same time for the FIRST time, we are screwed
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PRMonitor *GetEditorMonitor()
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{
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static PRMonitor *ns_editlock = nsnull;
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if (nsnull == ns_editlock)
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{
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ns_editlock = (PRMonitor *)1; //how long will the next line take? lets cut down on the chance of reentrancy
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ns_editlock = PR_NewMonitor();
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}
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*aFactory = nsnull;
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nsresult rv;
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nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
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if (NS_FAILED(rv)) return rv;
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nsIComponentManager* componentManager = nsnull;
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rv = servMgr->GetService(kComponentManagerCID, nsIComponentManager::GetIID(),
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(nsISupports**)&componentManager);
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if (NS_FAILED(rv)) return rv;
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rv = NS_NOINTERFACE;
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if (aClass.Equals(kHTMLEditorCID)) {
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rv = GetEditorFactory(aFactory, aClass);
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if (NS_FAILED(rv)) goto done;
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}
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else if (aClass.Equals(kEditorShellCID)) {
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rv = GetEditorShellFactory(aFactory, aClass, aClassName, aProgID);
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if (NS_FAILED(rv)) goto done;
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}
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done:
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(void)servMgr->ReleaseService(kComponentManagerCID, componentManager);
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return rv;
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else if ((PRMonitor *)1 == ns_editlock)
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return GetEditorMonitor();
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return ns_editlock;
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}
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extern "C" NS_EXPORT PRBool
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NSCanUnload(nsISupports* aServMgr)
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{
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return nsEditor::gInstanceCount;
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}
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extern "C" NS_EXPORT nsresult
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NSRegisterSelf(nsISupports* aServMgr, const char *path)
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{
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nsresult rv;
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nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
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if (NS_FAILED(rv)) return rv;
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nsIComponentManager* compMgr;
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rv = servMgr->GetService(kComponentManagerCID,
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nsIComponentManager::GetIID(),
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(nsISupports**)&compMgr);
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if (NS_FAILED(rv)) return rv;
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rv = compMgr->RegisterComponent(kHTMLEditorCID, NULL, NULL, path,
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PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->RegisterComponent(kEditorShellCID,
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"Editor Shell Component",
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"component://netscape/editor/editorshell",
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->RegisterComponent(kEditorShellCID,
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"Editor Shell Spell Checker",
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"component://netscape/editor/editorspellcheck",
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path, PR_TRUE, PR_TRUE);
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done:
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(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
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return rv;
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}
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extern "C" NS_EXPORT nsresult
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NSUnregisterSelf(nsISupports* aServMgr, const char *path)
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{
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nsresult rv;
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nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
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if (NS_FAILED(rv)) return rv;
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nsIComponentManager* compMgr;
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rv = servMgr->GetService(kComponentManagerCID,
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nsIComponentManager::GetIID(),
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(nsISupports**)&compMgr);
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if (NS_FAILED(rv)) return rv;
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/*
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rv = compMgr->UnregisterComponent(kEditorCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterComponent(kTextEditorCID, path);
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if (NS_FAILED(rv)) goto done;
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*/
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rv = compMgr->UnregisterComponent(kHTMLEditorCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterComponent(kEditorShellCID, path);
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done:
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(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
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return rv;
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}
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//END EXPORTS
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Block a user