mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-29 07:42:04 +00:00
First pass at nested document loaders...
This commit is contained in:
rpotts%netscape.com
parent
744e7f3fe6
commit
2b6fbde302
@ -38,6 +38,25 @@
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class nsDocLoaderImpl;
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/* Private IIDs... */
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/* eb001fa0-214f-11d2-bec0-00805f8a66dc */
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#define NS_DOCUMENTBINDINFO_IID \
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{ 0xeb001fa0, 0x214f, 0x11d2, \
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{0xbe, 0xc0, 0x00, 0x80, 0x5f, 0x8a, 0x66, 0xdc} }
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/* 28475a80-2150-11d2-bec0-00805f8a66dc */
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#define NS_DOCLOADERIMPL_IID \
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{ 0x28475a80, 0x2150, 0x11d2, \
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{0xbe, 0xc0, 0x00, 0x80, 0x5f, 0x8a, 0x66, 0xdc} }
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/* Define IIDs... */
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NS_DEFINE_IID(kIStreamObserverIID, NS_ISTREAMOBSERVER_IID);
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NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
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NS_DEFINE_IID(kIDocumentLoaderFactoryIID, NS_IDOCUMENTLOADERFACTORY_IID);
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NS_DEFINE_IID(kDocLoaderImplIID, NS_DOCLOADERIMPL_IID);
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NS_DEFINE_IID(kDocumentBindInfoIID, NS_DOCUMENTBINDINFO_IID);
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/*
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* The nsDocumentBindInfo contains the state required when a single document
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* is being loaded... Each instance remains alive until its target URL has
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@ -57,7 +76,10 @@ public:
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NS_DECL_ISUPPORTS
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nsresult Bind(const nsString& aURLSpec, nsIPostData* aPostData);
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nsresult Bind(const nsString& aURLSpec,
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nsIPostData* aPostData,
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nsIStreamListener* aListener);
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nsresult Stop(void);
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/* nsIStreamListener interface methods... */
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NS_IMETHOD GetBindInfo(nsIURL* aURL);
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@ -79,6 +101,8 @@ public:
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NS_IMETHOD_(PRBool) PromptPassword(const nsString &aText,
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nsString &aPassword);
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PRInt32 GetStatus(void) { return mStatus; }
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protected:
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virtual ~nsDocumentBindInfo();
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@ -91,9 +115,17 @@ protected:
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nsINetSupport* m_NetSupport;
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nsIStreamListener* m_NextStream;
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nsDocLoaderImpl* m_DocLoader;
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PRInt32 mStatus;
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};
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/****************************************************************************
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* nsDocFactoryImpl implementation...
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****************************************************************************/
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class nsDocFactoryImpl : public nsIDocumentLoaderFactory
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{
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public:
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@ -121,7 +153,6 @@ nsDocFactoryImpl::nsDocFactoryImpl()
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/*
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* Implementation of ISupports methods...
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*/
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NS_DEFINE_IID(kIDocumentLoaderFactoryIID, NS_IDOCUMENTLOADERFACTORY_IID);
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NS_IMPL_ISUPPORTS(nsDocFactoryImpl,kIDocumentLoaderFactoryIID);
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static char* gValidTypes[] = {"text/html","text/xml","application/rtf",0};
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@ -236,42 +267,62 @@ nsresult nsDocFactoryImpl::InitUAStyleSheet()
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}
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/****************************************************************************
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* nsDocLoaderImpl implementation...
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****************************************************************************/
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class nsDocLoaderImpl : public nsIDocumentLoader
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{
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public:
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nsDocLoaderImpl();
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nsDocLoaderImpl(nsDocLoaderImpl* aParent);
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NS_DECL_ISUPPORTS
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NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory);
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NS_IMETHOD LoadURL(const nsString& aURLSpec,
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const char *aCommand,
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nsIContentViewerContainer* aContainer,
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nsIPostData* aPostData = nsnull,
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nsISupports* aExtraInfo = nsnull,
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nsIStreamObserver *anObserver = nsnull);
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nsISupports* aExtraInfo = nsnull,
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nsIStreamObserver* anObserver = nsnull);
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NS_IMETHOD LoadURL(const nsString& aURLSpec,
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nsIStreamListener* aListener);
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NS_IMETHOD Stop(void);
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NS_IMETHOD CreateDocumentLoader(nsIDocumentLoader** anInstance);
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NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory);
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void LoadURLComplete(nsISupports* loader);
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protected:
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virtual ~nsDocLoaderImpl();
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private:
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static PRBool StopBindInfoEnumerator (nsISupports* aElement, void* aData);
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static PRBool StopDocLoaderEnumerator(nsISupports* aElement, void* aData);
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public:
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nsIDocumentLoaderFactory* m_DocFactory;
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protected:
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nsISupportsArray* m_LoadingDocsList;
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nsDocLoaderImpl* mParent;
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nsISupportsArray* mChildDocLoaderList;
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};
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nsDocLoaderImpl::nsDocLoaderImpl()
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nsDocLoaderImpl::nsDocLoaderImpl(nsDocLoaderImpl* aParent)
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{
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NS_INIT_REFCNT();
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NS_NewISupportsArray(&m_LoadingDocsList);
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NS_NewISupportsArray(&mChildDocLoaderList);
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mParent = aParent;
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NS_IF_ADDREF(mParent);
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m_DocFactory = new nsDocFactoryImpl();
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NS_ADDREF(m_DocFactory);
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@ -280,6 +331,10 @@ nsDocLoaderImpl::nsDocLoaderImpl()
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nsDocLoaderImpl::~nsDocLoaderImpl()
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{
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Stop();
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NS_IF_RELEASE(mParent);
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NS_IF_RELEASE(mChildDocLoaderList);
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NS_IF_RELEASE(m_LoadingDocsList);
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NS_IF_RELEASE(m_DocFactory);
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}
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@ -288,8 +343,55 @@ nsDocLoaderImpl::~nsDocLoaderImpl()
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/*
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* Implementation of ISupports methods...
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*/
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NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
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NS_IMPL_ISUPPORTS(nsDocLoaderImpl,kIDocumentLoaderIID);
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NS_IMPL_ADDREF(nsDocLoaderImpl);
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NS_IMPL_RELEASE(nsDocLoaderImpl);
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NS_IMETHODIMP
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nsDocLoaderImpl::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(kIDocumentLoaderIID)) {
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*aInstancePtr = (void*)(nsIDocumentLoader*)this;
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AddRef();
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return NS_OK;
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}
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if (aIID.Equals(kDocLoaderImplIID)) {
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*aInstancePtr = (void*)this;
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AddRef();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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NS_IMETHODIMP
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nsDocLoaderImpl::CreateDocumentLoader(nsIDocumentLoader** anInstance)
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{
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nsDocLoaderImpl* newLoader = nsnull;
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nsresult rv = NS_OK;
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/* Check for initial error conditions... */
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if (nsnull == anInstance) {
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rv = NS_ERROR_NULL_POINTER;
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goto done;
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}
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newLoader = new nsDocLoaderImpl(this);
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if (nsnull == newLoader) {
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rv = NS_ERROR_OUT_OF_MEMORY;
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goto done;
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}
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rv = newLoader->QueryInterface(kIDocumentLoaderIID, (void**)anInstance);
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mChildDocLoaderList->AppendElement(newLoader);
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done:
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return rv;
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}
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NS_IMETHODIMP
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@ -305,11 +407,11 @@ nsDocLoaderImpl::SetDocumentFactory(nsIDocumentLoaderFactory* aFactory)
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NS_IMETHODIMP
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nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
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const char* aCommand,
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nsIContentViewerContainer* aContainer,
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nsIPostData* aPostData,
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nsISupports* aExtraInfo,
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nsIStreamObserver* anObserver)
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const char* aCommand,
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nsIContentViewerContainer* aContainer,
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nsIPostData* aPostData,
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nsISupports* aExtraInfo,
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nsIStreamObserver* anObserver)
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{
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nsresult rv;
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nsDocumentBindInfo* loader = nsnull;
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@ -320,8 +422,11 @@ nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
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goto done;
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}
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loader = new nsDocumentBindInfo(this, aCommand, aContainer,
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aExtraInfo, anObserver);
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loader = new nsDocumentBindInfo(this, // DocLoader
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aCommand, // Command
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aContainer, // Viewer Container
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aExtraInfo, // Extra Info
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anObserver); // Observer
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if (nsnull == loader) {
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rv = NS_ERROR_OUT_OF_MEMORY;
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goto done;
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@ -329,24 +434,122 @@ nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
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/* The DocumentBindInfo reference is only held by the Array... */
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m_LoadingDocsList->AppendElement((nsIStreamListener *)loader);
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rv = loader->Bind(aURLSpec, aPostData);
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rv = loader->Bind(aURLSpec, aPostData, nsnull);
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done:
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return rv;
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}
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void nsDocLoaderImpl::LoadURLComplete(nsISupports* docInfo)
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NS_IMETHODIMP
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nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
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nsIStreamListener* aListener)
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{
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nsresult rv;
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nsDocumentBindInfo* loader = nsnull;
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/* Check for initial error conditions... */
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if (nsnull == aListener) {
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rv = NS_ERROR_NULL_POINTER;
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goto done;
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}
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loader = new nsDocumentBindInfo(this, // DocLoader
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nsnull, // Command
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nsnull, // Viewer Container
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nsnull, // Extra Info
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nsnull); // Observer
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if (nsnull == loader) {
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rv = NS_ERROR_OUT_OF_MEMORY;
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goto done;
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}
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/* The DocumentBindInfo reference is only held by the Array... */
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m_LoadingDocsList->AppendElement(((nsISupports*)(nsIStreamObserver*)loader));
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rv = loader->Bind(aURLSpec, nsnull, aListener);
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done:
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return rv;
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}
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NS_IMETHODIMP
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nsDocLoaderImpl::Stop(void)
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{
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m_LoadingDocsList->EnumerateForwards(nsDocLoaderImpl::StopBindInfoEnumerator, nsnull);
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/*
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* Now the only reference to each nsDocumentBindInfo instance is held by
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* Netlib via the nsIStreamListener interface...
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*
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* When each connection is aborted, Netlib will release its reference to
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* the StreamListener and the DocumentBindInfo object will be deleted...
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*/
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m_LoadingDocsList->Clear();
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/*
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* Now Stop() all documents being loaded by child DocumentLoaders...
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*/
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mChildDocLoaderList->EnumerateForwards(nsDocLoaderImpl::StopDocLoaderEnumerator, nsnull);
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return NS_OK;
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}
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void nsDocLoaderImpl::LoadURLComplete(nsISupports* aBindInfo)
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{
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PRBool rv;
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rv = m_LoadingDocsList->RemoveElement(docInfo);
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NS_POSTCONDITION(PR_TRUE == rv, "DocLoader: Unable to remove completed document");
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rv = m_LoadingDocsList->RemoveElement(aBindInfo);
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/*
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* If the entry was not found in the list, then it must have been cancelled
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* via Stop(...).
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*/
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#if defined(NS_DEBUG)
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if (PR_TRUE != rv) {
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nsDocumentBindInfo* docInfo;
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docInfo->QueryInterface(kDocumentBindInfoIID, (void**)&docInfo);
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NS_ASSERTION((docInfo->GetStatus() == NS_BINDING_ABORTED),
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"Entry was not Aborted!");
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}
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#endif /* NS_DEBUG */
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}
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PRBool nsDocLoaderImpl::StopBindInfoEnumerator(nsISupports* aElement, void* aData)
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{
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nsresult rv;
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nsDocumentBindInfo* bindInfo;
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rv = aElement->QueryInterface(kDocumentBindInfoIID, (void**)&bindInfo);
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if (NS_OK == rv) {
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bindInfo->Stop();
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}
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return PR_TRUE;
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}
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PRBool nsDocLoaderImpl::StopDocLoaderEnumerator(nsISupports* aElement, void* aData)
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{
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nsresult rv;
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nsDocLoaderImpl* docLoader;
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rv = aElement->QueryInterface(kDocLoaderImplIID, (void**)&docLoader);
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if (NS_OK == rv) {
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docLoader->Stop();
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}
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return PR_TRUE;
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}
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/****************************************************************************
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* nsDocumentBindInfo implementation...
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****************************************************************************/
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nsDocumentBindInfo::nsDocumentBindInfo(nsDocLoaderImpl* aDocLoader,
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const char *aCommand,
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@ -398,8 +601,6 @@ nsDocumentBindInfo::~nsDocumentBindInfo()
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/*
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* Implementation of ISupports methods...
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*/
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NS_DEFINE_IID(kIStreamObserverIID, NS_ISTREAMOBSERVER_IID);
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NS_IMPL_ADDREF(nsDocumentBindInfo);
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NS_IMPL_RELEASE(nsDocumentBindInfo);
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@ -424,6 +625,11 @@ nsDocumentBindInfo::QueryInterface(const nsIID& aIID,
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AddRef();
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return NS_OK;
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}
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if (aIID.Equals(kDocumentBindInfoIID)) {
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*aInstancePtrResult = (void*) this;
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AddRef();
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return NS_OK;
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}
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if (aIID.Equals(kINetSupportIID)) {
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*aInstancePtrResult = (void*) ((nsINetSupport*)this);
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AddRef();
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@ -433,7 +639,8 @@ nsDocumentBindInfo::QueryInterface(const nsIID& aIID,
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}
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nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
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nsIPostData* aPostData)
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nsIPostData* aPostData,
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nsIStreamListener* aListener)
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{
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nsresult rv;
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@ -460,6 +667,12 @@ nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
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}
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}
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/* Set up the stream listener (if provided)... */
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if (nsnull != aListener) {
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m_NextStream = aListener;
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NS_ADDREF(m_NextStream);
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}
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/* Start the URL binding process... */
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rv = m_Url->Open(this);
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@ -467,6 +680,14 @@ nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
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}
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nsresult nsDocumentBindInfo::Stop(void)
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{
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mStatus = NS_BINDING_ABORTED;
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return NS_OK;
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}
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NS_METHOD nsDocumentBindInfo::GetBindInfo(nsIURL* aURL)
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{
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nsresult rv = NS_OK;
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@ -507,33 +728,42 @@ NS_METHOD nsDocumentBindInfo::OnStartBinding(nsIURL* aURL, const char *aContentT
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nsresult rv = NS_OK;
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nsIContentViewer* viewer = nsnull;
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/*
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* Now that the content type is available, create a document (and viewer)
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* of the appropriate type...
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*/
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if (m_DocLoader->m_DocFactory) {
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rv = m_DocLoader->m_DocFactory->CreateInstance(m_Url,
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aContentType,
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m_Command,
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m_Container,
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&m_NextStream,
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&viewer);
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} else {
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rv = NS_ERROR_NULL_POINTER;
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}
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if (NS_OK != rv) {
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/* If the binding has been canceled via Stop() then abort the load... */
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if (NS_BINDING_ABORTED == mStatus) {
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rv = NS_BINDING_ABORTED;
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goto done;
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}
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/*
|
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* Give the document container the new viewer...
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*/
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viewer->SetContainer(m_Container);
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if (nsnull == m_NextStream) {
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rv = m_Container->Embed(viewer, m_Command, m_ExtraInfo);
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if (NS_OK != rv) {
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goto done;
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/*
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* Now that the content type is available, create a document (and viewer)
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* of the appropriate type...
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*/
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if (m_DocLoader->m_DocFactory) {
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rv = m_DocLoader->m_DocFactory->CreateInstance(m_Url,
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aContentType,
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m_Command,
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m_Container,
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&m_NextStream,
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&viewer);
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} else {
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rv = NS_ERROR_NULL_POINTER;
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}
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|
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if (NS_OK != rv) {
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goto done;
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}
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|
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/*
|
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* Give the document container the new viewer...
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*/
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viewer->SetContainer(m_Container);
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rv = m_Container->Embed(viewer, m_Command, m_ExtraInfo);
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if (NS_OK != rv) {
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goto done;
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}
|
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}
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|
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/*
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@ -564,12 +794,18 @@ NS_METHOD nsDocumentBindInfo::OnDataAvailable(nsIURL* aURL,
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{
|
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nsresult rv = NS_OK;
|
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|
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NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
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/* If the binding has been canceled via Stop() then abort the load... */
|
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if (NS_BINDING_ABORTED == mStatus) {
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rv = NS_BINDING_ABORTED;
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goto done;
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}
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||||
|
||||
NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnDataAvailable(aURL, aStream, aLength);
|
||||
}
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
@ -697,7 +933,9 @@ nsDocumentLoaderFactory::CreateInstance(nsISupports* aOuter,
|
||||
void** aResult)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocLoaderImpl* inst;
|
||||
nsIDocumentLoader* inst;
|
||||
static nsDocLoaderImpl* gGlobalDocLoader = nsnull;
|
||||
|
||||
|
||||
if (nsnull == aResult) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
@ -710,15 +948,22 @@ nsDocumentLoaderFactory::CreateInstance(nsISupports* aOuter,
|
||||
goto done;
|
||||
}
|
||||
|
||||
inst = new nsDocLoaderImpl();
|
||||
if (nsnull == inst) {
|
||||
if (nsnull == gGlobalDocLoader) {
|
||||
gGlobalDocLoader = new nsDocLoaderImpl(nsnull);
|
||||
if (nsnull == gGlobalDocLoader) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
|
||||
NS_ADDREF(gGlobalDocLoader); // RefCount = 1
|
||||
}
|
||||
|
||||
rv = gGlobalDocLoader->CreateDocumentLoader(&inst);
|
||||
if (NS_OK != rv) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
|
||||
NS_ADDREF(inst); // RefCount = 1
|
||||
rv = inst->QueryInterface(aIID, aResult);
|
||||
NS_RELEASE(inst);
|
||||
*aResult = inst;
|
||||
|
||||
done:
|
||||
return rv;
|
||||
|
||||
@ -65,14 +65,21 @@ public:
|
||||
class nsIDocumentLoader : public nsISupports
|
||||
{
|
||||
public:
|
||||
NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory) = 0;
|
||||
|
||||
NS_IMETHOD LoadURL(const nsString& aURLSpec,
|
||||
const char* aCommand,
|
||||
nsIContentViewerContainer* aContainer,
|
||||
nsIPostData* aPostData = nsnull,
|
||||
nsISupports* aExtraInfo = nsnull,
|
||||
nsIStreamObserver* anObserver = nsnull) = 0;
|
||||
|
||||
NS_IMETHOD LoadURL(const nsString& aURLSpec,
|
||||
nsIStreamListener* aListener) = 0;
|
||||
|
||||
NS_IMETHOD Stop(void) = 0;
|
||||
|
||||
NS_IMETHOD CreateDocumentLoader(nsIDocumentLoader** anInstance) = 0;
|
||||
|
||||
NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory) = 0;
|
||||
};
|
||||
|
||||
/* 057b04d0-0ccf-11d2-beba-00805f8a66dc */
|
||||
|
||||
@ -38,6 +38,25 @@
|
||||
class nsDocLoaderImpl;
|
||||
|
||||
|
||||
/* Private IIDs... */
|
||||
/* eb001fa0-214f-11d2-bec0-00805f8a66dc */
|
||||
#define NS_DOCUMENTBINDINFO_IID \
|
||||
{ 0xeb001fa0, 0x214f, 0x11d2, \
|
||||
{0xbe, 0xc0, 0x00, 0x80, 0x5f, 0x8a, 0x66, 0xdc} }
|
||||
|
||||
/* 28475a80-2150-11d2-bec0-00805f8a66dc */
|
||||
#define NS_DOCLOADERIMPL_IID \
|
||||
{ 0x28475a80, 0x2150, 0x11d2, \
|
||||
{0xbe, 0xc0, 0x00, 0x80, 0x5f, 0x8a, 0x66, 0xdc} }
|
||||
|
||||
/* Define IIDs... */
|
||||
NS_DEFINE_IID(kIStreamObserverIID, NS_ISTREAMOBSERVER_IID);
|
||||
NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
|
||||
NS_DEFINE_IID(kIDocumentLoaderFactoryIID, NS_IDOCUMENTLOADERFACTORY_IID);
|
||||
NS_DEFINE_IID(kDocLoaderImplIID, NS_DOCLOADERIMPL_IID);
|
||||
NS_DEFINE_IID(kDocumentBindInfoIID, NS_DOCUMENTBINDINFO_IID);
|
||||
|
||||
|
||||
/*
|
||||
* The nsDocumentBindInfo contains the state required when a single document
|
||||
* is being loaded... Each instance remains alive until its target URL has
|
||||
@ -57,7 +76,10 @@ public:
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
nsresult Bind(const nsString& aURLSpec, nsIPostData* aPostData);
|
||||
nsresult Bind(const nsString& aURLSpec,
|
||||
nsIPostData* aPostData,
|
||||
nsIStreamListener* aListener);
|
||||
nsresult Stop(void);
|
||||
|
||||
/* nsIStreamListener interface methods... */
|
||||
NS_IMETHOD GetBindInfo(nsIURL* aURL);
|
||||
@ -79,6 +101,8 @@ public:
|
||||
NS_IMETHOD_(PRBool) PromptPassword(const nsString &aText,
|
||||
nsString &aPassword);
|
||||
|
||||
PRInt32 GetStatus(void) { return mStatus; }
|
||||
|
||||
protected:
|
||||
virtual ~nsDocumentBindInfo();
|
||||
|
||||
@ -91,9 +115,17 @@ protected:
|
||||
nsINetSupport* m_NetSupport;
|
||||
nsIStreamListener* m_NextStream;
|
||||
nsDocLoaderImpl* m_DocLoader;
|
||||
|
||||
PRInt32 mStatus;
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* nsDocFactoryImpl implementation...
|
||||
****************************************************************************/
|
||||
|
||||
class nsDocFactoryImpl : public nsIDocumentLoaderFactory
|
||||
{
|
||||
public:
|
||||
@ -121,7 +153,6 @@ nsDocFactoryImpl::nsDocFactoryImpl()
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIDocumentLoaderFactoryIID, NS_IDOCUMENTLOADERFACTORY_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocFactoryImpl,kIDocumentLoaderFactoryIID);
|
||||
|
||||
static char* gValidTypes[] = {"text/html","text/xml","application/rtf",0};
|
||||
@ -236,42 +267,62 @@ nsresult nsDocFactoryImpl::InitUAStyleSheet()
|
||||
}
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* nsDocLoaderImpl implementation...
|
||||
****************************************************************************/
|
||||
|
||||
class nsDocLoaderImpl : public nsIDocumentLoader
|
||||
{
|
||||
public:
|
||||
|
||||
nsDocLoaderImpl();
|
||||
nsDocLoaderImpl(nsDocLoaderImpl* aParent);
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory);
|
||||
|
||||
NS_IMETHOD LoadURL(const nsString& aURLSpec,
|
||||
const char *aCommand,
|
||||
nsIContentViewerContainer* aContainer,
|
||||
nsIPostData* aPostData = nsnull,
|
||||
nsISupports* aExtraInfo = nsnull,
|
||||
nsIStreamObserver *anObserver = nsnull);
|
||||
nsISupports* aExtraInfo = nsnull,
|
||||
nsIStreamObserver* anObserver = nsnull);
|
||||
|
||||
NS_IMETHOD LoadURL(const nsString& aURLSpec,
|
||||
nsIStreamListener* aListener);
|
||||
|
||||
NS_IMETHOD Stop(void);
|
||||
|
||||
NS_IMETHOD CreateDocumentLoader(nsIDocumentLoader** anInstance);
|
||||
NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory);
|
||||
|
||||
void LoadURLComplete(nsISupports* loader);
|
||||
|
||||
protected:
|
||||
virtual ~nsDocLoaderImpl();
|
||||
|
||||
private:
|
||||
static PRBool StopBindInfoEnumerator (nsISupports* aElement, void* aData);
|
||||
static PRBool StopDocLoaderEnumerator(nsISupports* aElement, void* aData);
|
||||
|
||||
public:
|
||||
nsIDocumentLoaderFactory* m_DocFactory;
|
||||
|
||||
protected:
|
||||
nsISupportsArray* m_LoadingDocsList;
|
||||
|
||||
nsDocLoaderImpl* mParent;
|
||||
nsISupportsArray* mChildDocLoaderList;
|
||||
};
|
||||
|
||||
|
||||
nsDocLoaderImpl::nsDocLoaderImpl()
|
||||
nsDocLoaderImpl::nsDocLoaderImpl(nsDocLoaderImpl* aParent)
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
|
||||
NS_NewISupportsArray(&m_LoadingDocsList);
|
||||
NS_NewISupportsArray(&mChildDocLoaderList);
|
||||
|
||||
mParent = aParent;
|
||||
NS_IF_ADDREF(mParent);
|
||||
|
||||
m_DocFactory = new nsDocFactoryImpl();
|
||||
NS_ADDREF(m_DocFactory);
|
||||
@ -280,6 +331,10 @@ nsDocLoaderImpl::nsDocLoaderImpl()
|
||||
|
||||
nsDocLoaderImpl::~nsDocLoaderImpl()
|
||||
{
|
||||
Stop();
|
||||
|
||||
NS_IF_RELEASE(mParent);
|
||||
NS_IF_RELEASE(mChildDocLoaderList);
|
||||
NS_IF_RELEASE(m_LoadingDocsList);
|
||||
NS_IF_RELEASE(m_DocFactory);
|
||||
}
|
||||
@ -288,8 +343,55 @@ nsDocLoaderImpl::~nsDocLoaderImpl()
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocLoaderImpl,kIDocumentLoaderIID);
|
||||
NS_IMPL_ADDREF(nsDocLoaderImpl);
|
||||
NS_IMPL_RELEASE(nsDocLoaderImpl);
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
||||
{
|
||||
if (NULL == aInstancePtr) {
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
}
|
||||
if (aIID.Equals(kIDocumentLoaderIID)) {
|
||||
*aInstancePtr = (void*)(nsIDocumentLoader*)this;
|
||||
AddRef();
|
||||
return NS_OK;
|
||||
}
|
||||
if (aIID.Equals(kDocLoaderImplIID)) {
|
||||
*aInstancePtr = (void*)this;
|
||||
AddRef();
|
||||
return NS_OK;
|
||||
}
|
||||
return NS_NOINTERFACE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::CreateDocumentLoader(nsIDocumentLoader** anInstance)
|
||||
{
|
||||
nsDocLoaderImpl* newLoader = nsnull;
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
/* Check for initial error conditions... */
|
||||
if (nsnull == anInstance) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
|
||||
newLoader = new nsDocLoaderImpl(this);
|
||||
if (nsnull == newLoader) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
rv = newLoader->QueryInterface(kIDocumentLoaderIID, (void**)anInstance);
|
||||
|
||||
mChildDocLoaderList->AppendElement(newLoader);
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
@ -305,11 +407,11 @@ nsDocLoaderImpl::SetDocumentFactory(nsIDocumentLoaderFactory* aFactory)
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
|
||||
const char* aCommand,
|
||||
nsIContentViewerContainer* aContainer,
|
||||
nsIPostData* aPostData,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver)
|
||||
const char* aCommand,
|
||||
nsIContentViewerContainer* aContainer,
|
||||
nsIPostData* aPostData,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocumentBindInfo* loader = nsnull;
|
||||
@ -320,8 +422,11 @@ nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
|
||||
goto done;
|
||||
}
|
||||
|
||||
loader = new nsDocumentBindInfo(this, aCommand, aContainer,
|
||||
aExtraInfo, anObserver);
|
||||
loader = new nsDocumentBindInfo(this, // DocLoader
|
||||
aCommand, // Command
|
||||
aContainer, // Viewer Container
|
||||
aExtraInfo, // Extra Info
|
||||
anObserver); // Observer
|
||||
if (nsnull == loader) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
@ -329,24 +434,122 @@ nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
|
||||
/* The DocumentBindInfo reference is only held by the Array... */
|
||||
m_LoadingDocsList->AppendElement((nsIStreamListener *)loader);
|
||||
|
||||
rv = loader->Bind(aURLSpec, aPostData);
|
||||
rv = loader->Bind(aURLSpec, aPostData, nsnull);
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
void nsDocLoaderImpl::LoadURLComplete(nsISupports* docInfo)
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
|
||||
nsIStreamListener* aListener)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocumentBindInfo* loader = nsnull;
|
||||
|
||||
/* Check for initial error conditions... */
|
||||
if (nsnull == aListener) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
|
||||
loader = new nsDocumentBindInfo(this, // DocLoader
|
||||
nsnull, // Command
|
||||
nsnull, // Viewer Container
|
||||
nsnull, // Extra Info
|
||||
nsnull); // Observer
|
||||
if (nsnull == loader) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* The DocumentBindInfo reference is only held by the Array... */
|
||||
m_LoadingDocsList->AppendElement(((nsISupports*)(nsIStreamObserver*)loader));
|
||||
|
||||
rv = loader->Bind(aURLSpec, nsnull, aListener);
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::Stop(void)
|
||||
{
|
||||
m_LoadingDocsList->EnumerateForwards(nsDocLoaderImpl::StopBindInfoEnumerator, nsnull);
|
||||
|
||||
/*
|
||||
* Now the only reference to each nsDocumentBindInfo instance is held by
|
||||
* Netlib via the nsIStreamListener interface...
|
||||
*
|
||||
* When each connection is aborted, Netlib will release its reference to
|
||||
* the StreamListener and the DocumentBindInfo object will be deleted...
|
||||
*/
|
||||
m_LoadingDocsList->Clear();
|
||||
|
||||
/*
|
||||
* Now Stop() all documents being loaded by child DocumentLoaders...
|
||||
*/
|
||||
mChildDocLoaderList->EnumerateForwards(nsDocLoaderImpl::StopDocLoaderEnumerator, nsnull);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
void nsDocLoaderImpl::LoadURLComplete(nsISupports* aBindInfo)
|
||||
{
|
||||
PRBool rv;
|
||||
|
||||
rv = m_LoadingDocsList->RemoveElement(docInfo);
|
||||
NS_POSTCONDITION(PR_TRUE == rv, "DocLoader: Unable to remove completed document");
|
||||
rv = m_LoadingDocsList->RemoveElement(aBindInfo);
|
||||
|
||||
/*
|
||||
* If the entry was not found in the list, then it must have been cancelled
|
||||
* via Stop(...).
|
||||
*/
|
||||
#if defined(NS_DEBUG)
|
||||
if (PR_TRUE != rv) {
|
||||
nsDocumentBindInfo* docInfo;
|
||||
|
||||
docInfo->QueryInterface(kDocumentBindInfoIID, (void**)&docInfo);
|
||||
NS_ASSERTION((docInfo->GetStatus() == NS_BINDING_ABORTED),
|
||||
"Entry was not Aborted!");
|
||||
}
|
||||
#endif /* NS_DEBUG */
|
||||
}
|
||||
|
||||
|
||||
PRBool nsDocLoaderImpl::StopBindInfoEnumerator(nsISupports* aElement, void* aData)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocumentBindInfo* bindInfo;
|
||||
|
||||
rv = aElement->QueryInterface(kDocumentBindInfoIID, (void**)&bindInfo);
|
||||
if (NS_OK == rv) {
|
||||
bindInfo->Stop();
|
||||
}
|
||||
|
||||
return PR_TRUE;
|
||||
}
|
||||
|
||||
|
||||
PRBool nsDocLoaderImpl::StopDocLoaderEnumerator(nsISupports* aElement, void* aData)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocLoaderImpl* docLoader;
|
||||
|
||||
rv = aElement->QueryInterface(kDocLoaderImplIID, (void**)&docLoader);
|
||||
if (NS_OK == rv) {
|
||||
docLoader->Stop();
|
||||
}
|
||||
|
||||
return PR_TRUE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* nsDocumentBindInfo implementation...
|
||||
****************************************************************************/
|
||||
|
||||
nsDocumentBindInfo::nsDocumentBindInfo(nsDocLoaderImpl* aDocLoader,
|
||||
const char *aCommand,
|
||||
@ -398,8 +601,6 @@ nsDocumentBindInfo::~nsDocumentBindInfo()
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIStreamObserverIID, NS_ISTREAMOBSERVER_IID);
|
||||
|
||||
NS_IMPL_ADDREF(nsDocumentBindInfo);
|
||||
NS_IMPL_RELEASE(nsDocumentBindInfo);
|
||||
|
||||
@ -424,6 +625,11 @@ nsDocumentBindInfo::QueryInterface(const nsIID& aIID,
|
||||
AddRef();
|
||||
return NS_OK;
|
||||
}
|
||||
if (aIID.Equals(kDocumentBindInfoIID)) {
|
||||
*aInstancePtrResult = (void*) this;
|
||||
AddRef();
|
||||
return NS_OK;
|
||||
}
|
||||
if (aIID.Equals(kINetSupportIID)) {
|
||||
*aInstancePtrResult = (void*) ((nsINetSupport*)this);
|
||||
AddRef();
|
||||
@ -433,7 +639,8 @@ nsDocumentBindInfo::QueryInterface(const nsIID& aIID,
|
||||
}
|
||||
|
||||
nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
|
||||
nsIPostData* aPostData)
|
||||
nsIPostData* aPostData,
|
||||
nsIStreamListener* aListener)
|
||||
{
|
||||
nsresult rv;
|
||||
|
||||
@ -460,6 +667,12 @@ nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
|
||||
}
|
||||
}
|
||||
|
||||
/* Set up the stream listener (if provided)... */
|
||||
if (nsnull != aListener) {
|
||||
m_NextStream = aListener;
|
||||
NS_ADDREF(m_NextStream);
|
||||
}
|
||||
|
||||
/* Start the URL binding process... */
|
||||
rv = m_Url->Open(this);
|
||||
|
||||
@ -467,6 +680,14 @@ nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
|
||||
}
|
||||
|
||||
|
||||
nsresult nsDocumentBindInfo::Stop(void)
|
||||
{
|
||||
mStatus = NS_BINDING_ABORTED;
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::GetBindInfo(nsIURL* aURL)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
@ -507,33 +728,42 @@ NS_METHOD nsDocumentBindInfo::OnStartBinding(nsIURL* aURL, const char *aContentT
|
||||
nsresult rv = NS_OK;
|
||||
nsIContentViewer* viewer = nsnull;
|
||||
|
||||
/*
|
||||
* Now that the content type is available, create a document (and viewer)
|
||||
* of the appropriate type...
|
||||
*/
|
||||
if (m_DocLoader->m_DocFactory) {
|
||||
rv = m_DocLoader->m_DocFactory->CreateInstance(m_Url,
|
||||
aContentType,
|
||||
m_Command,
|
||||
m_Container,
|
||||
&m_NextStream,
|
||||
&viewer);
|
||||
} else {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
}
|
||||
|
||||
if (NS_OK != rv) {
|
||||
/* If the binding has been canceled via Stop() then abort the load... */
|
||||
if (NS_BINDING_ABORTED == mStatus) {
|
||||
rv = NS_BINDING_ABORTED;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*
|
||||
* Give the document container the new viewer...
|
||||
*/
|
||||
viewer->SetContainer(m_Container);
|
||||
if (nsnull == m_NextStream) {
|
||||
|
||||
rv = m_Container->Embed(viewer, m_Command, m_ExtraInfo);
|
||||
if (NS_OK != rv) {
|
||||
goto done;
|
||||
/*
|
||||
* Now that the content type is available, create a document (and viewer)
|
||||
* of the appropriate type...
|
||||
*/
|
||||
if (m_DocLoader->m_DocFactory) {
|
||||
rv = m_DocLoader->m_DocFactory->CreateInstance(m_Url,
|
||||
aContentType,
|
||||
m_Command,
|
||||
m_Container,
|
||||
&m_NextStream,
|
||||
&viewer);
|
||||
} else {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
}
|
||||
|
||||
if (NS_OK != rv) {
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*
|
||||
* Give the document container the new viewer...
|
||||
*/
|
||||
viewer->SetContainer(m_Container);
|
||||
|
||||
rv = m_Container->Embed(viewer, m_Command, m_ExtraInfo);
|
||||
if (NS_OK != rv) {
|
||||
goto done;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
@ -564,12 +794,18 @@ NS_METHOD nsDocumentBindInfo::OnDataAvailable(nsIURL* aURL,
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
|
||||
/* If the binding has been canceled via Stop() then abort the load... */
|
||||
if (NS_BINDING_ABORTED == mStatus) {
|
||||
rv = NS_BINDING_ABORTED;
|
||||
goto done;
|
||||
}
|
||||
|
||||
NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnDataAvailable(aURL, aStream, aLength);
|
||||
}
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
@ -697,7 +933,9 @@ nsDocumentLoaderFactory::CreateInstance(nsISupports* aOuter,
|
||||
void** aResult)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocLoaderImpl* inst;
|
||||
nsIDocumentLoader* inst;
|
||||
static nsDocLoaderImpl* gGlobalDocLoader = nsnull;
|
||||
|
||||
|
||||
if (nsnull == aResult) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
@ -710,15 +948,22 @@ nsDocumentLoaderFactory::CreateInstance(nsISupports* aOuter,
|
||||
goto done;
|
||||
}
|
||||
|
||||
inst = new nsDocLoaderImpl();
|
||||
if (nsnull == inst) {
|
||||
if (nsnull == gGlobalDocLoader) {
|
||||
gGlobalDocLoader = new nsDocLoaderImpl(nsnull);
|
||||
if (nsnull == gGlobalDocLoader) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
|
||||
NS_ADDREF(gGlobalDocLoader); // RefCount = 1
|
||||
}
|
||||
|
||||
rv = gGlobalDocLoader->CreateDocumentLoader(&inst);
|
||||
if (NS_OK != rv) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
|
||||
NS_ADDREF(inst); // RefCount = 1
|
||||
rv = inst->QueryInterface(aIID, aResult);
|
||||
NS_RELEASE(inst);
|
||||
*aResult = inst;
|
||||
|
||||
done:
|
||||
return rv;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user