mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 22:01:30 +00:00
Added nsDocLoader.cpp...
This commit is contained in:
rpotts
parent
7129a830a6
commit
cb8f2e082c
559
uriloader/base/nsDocLoader.cpp
Normal file
559
uriloader/base/nsDocLoader.cpp
Normal file
@ -0,0 +1,559 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Netscape Public License
|
||||
* Version 1.0 (the "License"); you may not use this file except in
|
||||
* compliance with the License. You may obtain a copy of the License at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS IS"
|
||||
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
||||
* the License for the specific language governing rights and limitations
|
||||
* under the License.
|
||||
*
|
||||
* The Original Code is Mozilla Communicator client code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Netscape Communications
|
||||
* Corporation. Portions created by Netscape are Copyright (C) 1998
|
||||
* Netscape Communications Corporation. All Rights Reserved.
|
||||
*/
|
||||
#include "prmem.h"
|
||||
#include "plstr.h"
|
||||
|
||||
#include "nsString.h"
|
||||
#include "nsISupportsArray.h"
|
||||
|
||||
#include "nsIURL.h"
|
||||
#include "nsIStreamListener.h"
|
||||
#include "nsIPostToServer.h"
|
||||
#include "nsIFactory.h"
|
||||
|
||||
// XXX: Only needed for dummy factory...
|
||||
#include "nsIWebWidget.h"
|
||||
#include "nsIDocument.h"
|
||||
|
||||
#include "nsIDocumentLoader.h"
|
||||
#include "nsIDocumentWidget.h"
|
||||
|
||||
/* Forward declarations.... */
|
||||
class nsDocLoaderImpl;
|
||||
|
||||
|
||||
/*
|
||||
* The nsDocumentBindInfo contains the state required when a single document
|
||||
* is being loaded... Each instance remains alive until its target URL has
|
||||
* been loaded (or aborted).
|
||||
*
|
||||
* The Document Loader maintains a list of nsDocumentBindInfo instances which
|
||||
* represents the set of documents actively being loaded...
|
||||
*/
|
||||
class nsDocumentBindInfo : public nsIStreamListener
|
||||
{
|
||||
public:
|
||||
nsDocumentBindInfo(nsDocLoaderImpl* aDocLoader,
|
||||
const char *aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver);
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
nsresult Bind(const nsString& aURLSpec, nsIPostData* aPostData);
|
||||
|
||||
/* nsIStreamListener interface methods... */
|
||||
NS_IMETHOD GetBindInfo(void);
|
||||
NS_IMETHOD OnProgress(PRInt32 aProgress, PRInt32 aProgressMax,
|
||||
const nsString& aMsg);
|
||||
NS_IMETHOD OnStartBinding(const char *aContentType);
|
||||
NS_IMETHOD OnDataAvailable(nsIInputStream *aStream, PRInt32 aLength);
|
||||
NS_IMETHOD OnStopBinding(PRInt32 aStatus, const nsString& aMsg);
|
||||
|
||||
protected:
|
||||
virtual ~nsDocumentBindInfo();
|
||||
|
||||
protected:
|
||||
char* m_Command;
|
||||
nsIURL* m_Url;
|
||||
nsIViewerContainer* m_Container;
|
||||
nsISupports* m_ExtraInfo;
|
||||
nsIStreamObserver* m_Observer;
|
||||
nsIStreamListener* m_NextStream;
|
||||
nsDocLoaderImpl* m_DocLoader;
|
||||
};
|
||||
|
||||
|
||||
class nsDocFactoryImpl : public nsIDocumentLoaderFactory
|
||||
{
|
||||
public:
|
||||
nsDocFactoryImpl();
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
NS_IMETHOD CreateInstance(nsIURL* aURL,
|
||||
const char* aContentType,
|
||||
const char *aCommand,
|
||||
nsIStreamListener** aDocListener,
|
||||
nsIDocumentWidget** aDocViewer);
|
||||
};
|
||||
|
||||
|
||||
nsDocFactoryImpl::nsDocFactoryImpl()
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
}
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIDocumentLoaderFactoryIID, NS_IDOCUMENTLOADERFACTORY_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocFactoryImpl,kIDocumentLoaderFactoryIID);
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocFactoryImpl::CreateInstance(nsIURL* aURL,
|
||||
const char* aContentType,
|
||||
const char *aCommand,
|
||||
nsIStreamListener** aDocListener,
|
||||
nsIDocumentWidget** aDocViewer)
|
||||
{
|
||||
nsresult rv;
|
||||
nsIDocument* doc = nsnull;
|
||||
nsIWebWidget* ww = nsnull;
|
||||
|
||||
if (0 != PL_strcmp("text/html", aContentType)) {
|
||||
rv = NS_ERROR_FAILURE;
|
||||
goto done;
|
||||
}
|
||||
|
||||
rv = NS_NewHTMLDocument(&doc);
|
||||
|
||||
rv = NS_NewWebWidget(&ww);
|
||||
|
||||
rv = doc->StartDocumentLoad(aURL, ww, aDocListener);
|
||||
|
||||
rv = ww->BindToDocument(doc, aCommand);
|
||||
*aDocViewer = ww;
|
||||
|
||||
NS_RELEASE(doc);
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
class nsDocLoaderImpl : public nsIDocumentLoader
|
||||
{
|
||||
public:
|
||||
|
||||
nsDocLoaderImpl();
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory);
|
||||
|
||||
NS_IMETHOD LoadURL(const nsString& aURLSpec,
|
||||
const char *aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsIPostData* aPostData = nsnull,
|
||||
nsISupports* aExtraInfo = nsnull,
|
||||
nsIStreamObserver *anObserver = nsnull);
|
||||
|
||||
void LoadURLComplete(nsISupports* loader);
|
||||
|
||||
protected:
|
||||
virtual ~nsDocLoaderImpl();
|
||||
|
||||
public:
|
||||
nsIDocumentLoaderFactory* m_DocFactory;
|
||||
|
||||
protected:
|
||||
nsISupportsArray* m_LoadingDocsList;
|
||||
};
|
||||
|
||||
|
||||
nsDocLoaderImpl::nsDocLoaderImpl()
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
|
||||
NS_NewISupportsArray(&m_LoadingDocsList);
|
||||
|
||||
m_DocFactory = new nsDocFactoryImpl();
|
||||
NS_ADDREF(m_DocFactory);
|
||||
}
|
||||
|
||||
|
||||
nsDocLoaderImpl::~nsDocLoaderImpl()
|
||||
{
|
||||
NS_IF_RELEASE(m_LoadingDocsList);
|
||||
NS_IF_RELEASE(m_DocFactory);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocLoaderImpl,kIDocumentLoaderIID);
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::SetDocumentFactory(nsIDocumentLoaderFactory* aFactory)
|
||||
{
|
||||
NS_IF_RELEASE(m_DocFactory);
|
||||
m_DocFactory = aFactory;
|
||||
NS_IF_ADDREF(m_DocFactory);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
|
||||
const char* aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsIPostData* aPostData,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocumentBindInfo* loader = nsnull;
|
||||
|
||||
/* Check for initial error conditions... */
|
||||
if (nsnull == aContainer) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
|
||||
loader = new nsDocumentBindInfo(this, aCommand, aContainer,
|
||||
aExtraInfo, anObserver);
|
||||
if (nsnull == loader) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
/* The DocumentBindInfo reference is only held by the Array... */
|
||||
m_LoadingDocsList->AppendElement(loader);
|
||||
|
||||
rv = loader->Bind(aURLSpec, aPostData);
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
void nsDocLoaderImpl::LoadURLComplete(nsISupports* docInfo)
|
||||
{
|
||||
PRBool rv;
|
||||
|
||||
rv = m_LoadingDocsList->RemoveElement(docInfo);
|
||||
NS_POSTCONDITION(PR_TRUE == rv, "DocLoader: Unable to remove completed document");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
nsDocumentBindInfo::nsDocumentBindInfo(nsDocLoaderImpl* aDocLoader,
|
||||
const char *aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver)
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
|
||||
m_Url = nsnull;
|
||||
m_NextStream = nsnull;
|
||||
m_Command = (nsnull != aCommand) ? PL_strdup(aCommand) : nsnull;
|
||||
m_ExtraInfo = nsnull;
|
||||
|
||||
m_DocLoader = aDocLoader;
|
||||
NS_ADDREF(m_DocLoader);
|
||||
|
||||
m_Container = aContainer;
|
||||
NS_IF_ADDREF(m_Container);
|
||||
|
||||
m_Observer = anObserver;
|
||||
NS_IF_ADDREF(m_Observer);
|
||||
|
||||
m_ExtraInfo = aExtraInfo;
|
||||
NS_IF_ADDREF(m_ExtraInfo);
|
||||
}
|
||||
|
||||
nsDocumentBindInfo::~nsDocumentBindInfo()
|
||||
{
|
||||
if (m_Command) {
|
||||
PR_Free(m_Command);
|
||||
}
|
||||
m_Command = nsnull;
|
||||
|
||||
NS_RELEASE (m_DocLoader);
|
||||
NS_IF_RELEASE(m_Url);
|
||||
NS_IF_RELEASE(m_NextStream);
|
||||
NS_IF_RELEASE(m_Container);
|
||||
NS_IF_RELEASE(m_Observer);
|
||||
NS_IF_RELEASE(m_ExtraInfo);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIStreamListenerIID, NS_ISTREAMLISTENER_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocumentBindInfo,kIStreamListenerIID);
|
||||
|
||||
|
||||
nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
|
||||
nsIPostData* aPostData)
|
||||
{
|
||||
nsresult rv;
|
||||
|
||||
rv = NS_NewURL(&m_Url, aURLSpec);
|
||||
if (NS_OK != rv) {
|
||||
return rv;
|
||||
}
|
||||
|
||||
/* Store any POST data into the URL */
|
||||
if (nsnull != aPostData) {
|
||||
static NS_DEFINE_IID(kPostToServerIID, NS_IPOSTTOSERVER_IID);
|
||||
nsIPostToServer* pts;
|
||||
|
||||
rv = m_Url->QueryInterface(kPostToServerIID, (void **)&pts);
|
||||
if (NS_OK == rv) {
|
||||
const char* data = aPostData->GetData();
|
||||
|
||||
if (aPostData->IsFile()) {
|
||||
pts->SendDataFromFile(data);
|
||||
}
|
||||
else {
|
||||
pts->SendData(data, aPostData->GetDataLength());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Start the URL binding process... */
|
||||
rv = m_Url->Open(this);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::GetBindInfo(void)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
|
||||
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->GetBindInfo();
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnProgress(PRInt32 aProgress, PRInt32 aProgressMax,
|
||||
const nsString& aMsg)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
/* Pass the notification out to the next stream listener... */
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnProgress(aProgress, aProgressMax, aMsg);
|
||||
}
|
||||
|
||||
/* Pass the notification out to the Observer... */
|
||||
if (nsnull != m_Observer) {
|
||||
/* XXX: Should we ignore the return value? */
|
||||
(void) m_Observer->OnProgress(aProgress, aProgressMax, aMsg);
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnStartBinding(const char *aContentType)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
nsIDocumentWidget* viewer;
|
||||
|
||||
/*
|
||||
* 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_NextStream,
|
||||
&viewer);
|
||||
} else {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*
|
||||
* Give the document container the new viewer...
|
||||
*/
|
||||
rv = m_Container->Embed(viewer, m_Command, m_ExtraInfo);
|
||||
if (NS_OK != rv) {
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*
|
||||
* Pass the OnStartBinding(...) notification out to the document
|
||||
* IStreamListener.
|
||||
*/
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnStartBinding(aContentType);
|
||||
}
|
||||
|
||||
/* Pass the notification out to the Observer... */
|
||||
if (nsnull != m_Observer) {
|
||||
/* XXX: Should we ignore the return value? */
|
||||
(void) m_Observer->OnStartBinding(aContentType);
|
||||
}
|
||||
|
||||
done:
|
||||
NS_RELEASE(viewer);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnDataAvailable(nsIInputStream *aStream, PRInt32 aLength)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
|
||||
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnDataAvailable(aStream, aLength);
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnStopBinding(PRInt32 aStatus, const nsString& aMsg)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnStopBinding(aStatus, aMsg);
|
||||
}
|
||||
|
||||
/* Pass the notification out to the Observer... */
|
||||
if (nsnull != m_Observer) {
|
||||
/* XXX: Should we ignore the return value? */
|
||||
(void) m_Observer->OnStopBinding(aStatus, aMsg);
|
||||
}
|
||||
|
||||
/*
|
||||
* The stream is complete... Tell the DocumentLoader to release us...
|
||||
*
|
||||
* This should cause the nsDocumentBindInfo instance to be deleted, so
|
||||
* DO NOT assume this is valid after the call!!
|
||||
*/
|
||||
m_DocLoader->LoadURLComplete(this);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*******************************************
|
||||
/* nsDocLoaderFactory
|
||||
/*******************************************/
|
||||
|
||||
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
|
||||
static NS_DEFINE_IID(kCDocumentLoader, NS_DOCUMENTLOADER_CID);
|
||||
|
||||
class nsDocumentLoaderFactory : public nsIFactory
|
||||
{
|
||||
public:
|
||||
nsDocumentLoaderFactory();
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
// nsIFactory methods
|
||||
NS_IMETHOD CreateInstance(nsISupports *aOuter,
|
||||
const nsIID &aIID,
|
||||
void **aResult);
|
||||
|
||||
NS_IMETHOD LockFactory(PRBool aLock);
|
||||
|
||||
|
||||
protected:
|
||||
virtual ~nsDocumentLoaderFactory();
|
||||
};
|
||||
|
||||
nsDocumentLoaderFactory::nsDocumentLoaderFactory()
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
}
|
||||
|
||||
nsDocumentLoaderFactory::~nsDocumentLoaderFactory()
|
||||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_IMPL_ISUPPORTS(nsDocumentLoaderFactory,kIFactoryIID);
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocumentLoaderFactory::CreateInstance(nsISupports* aOuter,
|
||||
const nsIID& aIID,
|
||||
void** aResult)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocLoaderImpl* inst;
|
||||
|
||||
if (nsnull == aResult) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
*aResult = nsnull;
|
||||
|
||||
if (nsnull != aOuter) {
|
||||
rv = NS_ERROR_NO_AGGREGATION;
|
||||
goto done;
|
||||
}
|
||||
|
||||
inst = new nsDocLoaderImpl();
|
||||
if (nsnull == inst) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
|
||||
NS_ADDREF(inst); // RefCount = 1
|
||||
rv = inst->QueryInterface(aIID, aResult);
|
||||
NS_RELEASE(inst);
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocumentLoaderFactory::LockFactory(PRBool aLock)
|
||||
{
|
||||
// Not implemented in simplest case.
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
extern "C" NS_WEB nsresult NS_NewDocumentLoaderFactory(nsIFactory** aFactory)
|
||||
{
|
||||
if (nsnull == aFactory) {
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
}
|
||||
|
||||
*aFactory = new nsDocumentLoaderFactory();
|
||||
if (nsnull == *aFactory) {
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
NS_ADDREF(*aFactory);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
@ -31,11 +31,13 @@ INCLUDES += -I../public -I$(PUBLIC)/raptor -I$(PUBLIC)/xpcom -I$(PUBLIC)/dom -I$
|
||||
DEFINES = -D_IMPL_NS_WEB
|
||||
|
||||
CPPSRCS= \
|
||||
nsDocLoader.cpp \
|
||||
nsWebWidget.cpp \
|
||||
nsLinkHandler.cpp \
|
||||
$(NULL)
|
||||
|
||||
CPP_OBJS= \
|
||||
./$(OBJDIR)/nsDocLoader.o \
|
||||
./$(OBJDIR)/nsWebWidget.o \
|
||||
./$(OBJDIR)/nsLinkHandler.o \
|
||||
$(NULL)
|
||||
|
||||
@ -24,11 +24,13 @@ MODULE=raptor
|
||||
CPPSRCS= \
|
||||
nsLinkHandler.cpp \
|
||||
nsWebWidget.cpp \
|
||||
nsDocLoader.cpp \
|
||||
$(NULL)
|
||||
|
||||
CPP_OBJS= \
|
||||
.\$(OBJDIR)\nsLinkHandler.obj \
|
||||
.\$(OBJDIR)\nsWebWidget.obj \
|
||||
.\$(OBJDIR)\nsDocLoader.obj \
|
||||
$(NULL)
|
||||
|
||||
LINCS=-I$(PUBLIC)\xpcom -I$(PUBLIC)\raptor \
|
||||
|
||||
559
webshell/src/nsDocLoader.cpp
Normal file
559
webshell/src/nsDocLoader.cpp
Normal file
@ -0,0 +1,559 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Netscape Public License
|
||||
* Version 1.0 (the "License"); you may not use this file except in
|
||||
* compliance with the License. You may obtain a copy of the License at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS IS"
|
||||
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
||||
* the License for the specific language governing rights and limitations
|
||||
* under the License.
|
||||
*
|
||||
* The Original Code is Mozilla Communicator client code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is Netscape Communications
|
||||
* Corporation. Portions created by Netscape are Copyright (C) 1998
|
||||
* Netscape Communications Corporation. All Rights Reserved.
|
||||
*/
|
||||
#include "prmem.h"
|
||||
#include "plstr.h"
|
||||
|
||||
#include "nsString.h"
|
||||
#include "nsISupportsArray.h"
|
||||
|
||||
#include "nsIURL.h"
|
||||
#include "nsIStreamListener.h"
|
||||
#include "nsIPostToServer.h"
|
||||
#include "nsIFactory.h"
|
||||
|
||||
// XXX: Only needed for dummy factory...
|
||||
#include "nsIWebWidget.h"
|
||||
#include "nsIDocument.h"
|
||||
|
||||
#include "nsIDocumentLoader.h"
|
||||
#include "nsIDocumentWidget.h"
|
||||
|
||||
/* Forward declarations.... */
|
||||
class nsDocLoaderImpl;
|
||||
|
||||
|
||||
/*
|
||||
* The nsDocumentBindInfo contains the state required when a single document
|
||||
* is being loaded... Each instance remains alive until its target URL has
|
||||
* been loaded (or aborted).
|
||||
*
|
||||
* The Document Loader maintains a list of nsDocumentBindInfo instances which
|
||||
* represents the set of documents actively being loaded...
|
||||
*/
|
||||
class nsDocumentBindInfo : public nsIStreamListener
|
||||
{
|
||||
public:
|
||||
nsDocumentBindInfo(nsDocLoaderImpl* aDocLoader,
|
||||
const char *aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver);
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
nsresult Bind(const nsString& aURLSpec, nsIPostData* aPostData);
|
||||
|
||||
/* nsIStreamListener interface methods... */
|
||||
NS_IMETHOD GetBindInfo(void);
|
||||
NS_IMETHOD OnProgress(PRInt32 aProgress, PRInt32 aProgressMax,
|
||||
const nsString& aMsg);
|
||||
NS_IMETHOD OnStartBinding(const char *aContentType);
|
||||
NS_IMETHOD OnDataAvailable(nsIInputStream *aStream, PRInt32 aLength);
|
||||
NS_IMETHOD OnStopBinding(PRInt32 aStatus, const nsString& aMsg);
|
||||
|
||||
protected:
|
||||
virtual ~nsDocumentBindInfo();
|
||||
|
||||
protected:
|
||||
char* m_Command;
|
||||
nsIURL* m_Url;
|
||||
nsIViewerContainer* m_Container;
|
||||
nsISupports* m_ExtraInfo;
|
||||
nsIStreamObserver* m_Observer;
|
||||
nsIStreamListener* m_NextStream;
|
||||
nsDocLoaderImpl* m_DocLoader;
|
||||
};
|
||||
|
||||
|
||||
class nsDocFactoryImpl : public nsIDocumentLoaderFactory
|
||||
{
|
||||
public:
|
||||
nsDocFactoryImpl();
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
NS_IMETHOD CreateInstance(nsIURL* aURL,
|
||||
const char* aContentType,
|
||||
const char *aCommand,
|
||||
nsIStreamListener** aDocListener,
|
||||
nsIDocumentWidget** aDocViewer);
|
||||
};
|
||||
|
||||
|
||||
nsDocFactoryImpl::nsDocFactoryImpl()
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
}
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIDocumentLoaderFactoryIID, NS_IDOCUMENTLOADERFACTORY_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocFactoryImpl,kIDocumentLoaderFactoryIID);
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocFactoryImpl::CreateInstance(nsIURL* aURL,
|
||||
const char* aContentType,
|
||||
const char *aCommand,
|
||||
nsIStreamListener** aDocListener,
|
||||
nsIDocumentWidget** aDocViewer)
|
||||
{
|
||||
nsresult rv;
|
||||
nsIDocument* doc = nsnull;
|
||||
nsIWebWidget* ww = nsnull;
|
||||
|
||||
if (0 != PL_strcmp("text/html", aContentType)) {
|
||||
rv = NS_ERROR_FAILURE;
|
||||
goto done;
|
||||
}
|
||||
|
||||
rv = NS_NewHTMLDocument(&doc);
|
||||
|
||||
rv = NS_NewWebWidget(&ww);
|
||||
|
||||
rv = doc->StartDocumentLoad(aURL, ww, aDocListener);
|
||||
|
||||
rv = ww->BindToDocument(doc, aCommand);
|
||||
*aDocViewer = ww;
|
||||
|
||||
NS_RELEASE(doc);
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
class nsDocLoaderImpl : public nsIDocumentLoader
|
||||
{
|
||||
public:
|
||||
|
||||
nsDocLoaderImpl();
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
NS_IMETHOD SetDocumentFactory(nsIDocumentLoaderFactory* aFactory);
|
||||
|
||||
NS_IMETHOD LoadURL(const nsString& aURLSpec,
|
||||
const char *aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsIPostData* aPostData = nsnull,
|
||||
nsISupports* aExtraInfo = nsnull,
|
||||
nsIStreamObserver *anObserver = nsnull);
|
||||
|
||||
void LoadURLComplete(nsISupports* loader);
|
||||
|
||||
protected:
|
||||
virtual ~nsDocLoaderImpl();
|
||||
|
||||
public:
|
||||
nsIDocumentLoaderFactory* m_DocFactory;
|
||||
|
||||
protected:
|
||||
nsISupportsArray* m_LoadingDocsList;
|
||||
};
|
||||
|
||||
|
||||
nsDocLoaderImpl::nsDocLoaderImpl()
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
|
||||
NS_NewISupportsArray(&m_LoadingDocsList);
|
||||
|
||||
m_DocFactory = new nsDocFactoryImpl();
|
||||
NS_ADDREF(m_DocFactory);
|
||||
}
|
||||
|
||||
|
||||
nsDocLoaderImpl::~nsDocLoaderImpl()
|
||||
{
|
||||
NS_IF_RELEASE(m_LoadingDocsList);
|
||||
NS_IF_RELEASE(m_DocFactory);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocLoaderImpl,kIDocumentLoaderIID);
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::SetDocumentFactory(nsIDocumentLoaderFactory* aFactory)
|
||||
{
|
||||
NS_IF_RELEASE(m_DocFactory);
|
||||
m_DocFactory = aFactory;
|
||||
NS_IF_ADDREF(m_DocFactory);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocLoaderImpl::LoadURL(const nsString& aURLSpec,
|
||||
const char* aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsIPostData* aPostData,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocumentBindInfo* loader = nsnull;
|
||||
|
||||
/* Check for initial error conditions... */
|
||||
if (nsnull == aContainer) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
|
||||
loader = new nsDocumentBindInfo(this, aCommand, aContainer,
|
||||
aExtraInfo, anObserver);
|
||||
if (nsnull == loader) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
/* The DocumentBindInfo reference is only held by the Array... */
|
||||
m_LoadingDocsList->AppendElement(loader);
|
||||
|
||||
rv = loader->Bind(aURLSpec, aPostData);
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
void nsDocLoaderImpl::LoadURLComplete(nsISupports* docInfo)
|
||||
{
|
||||
PRBool rv;
|
||||
|
||||
rv = m_LoadingDocsList->RemoveElement(docInfo);
|
||||
NS_POSTCONDITION(PR_TRUE == rv, "DocLoader: Unable to remove completed document");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
nsDocumentBindInfo::nsDocumentBindInfo(nsDocLoaderImpl* aDocLoader,
|
||||
const char *aCommand,
|
||||
nsIViewerContainer* aContainer,
|
||||
nsISupports* aExtraInfo,
|
||||
nsIStreamObserver* anObserver)
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
|
||||
m_Url = nsnull;
|
||||
m_NextStream = nsnull;
|
||||
m_Command = (nsnull != aCommand) ? PL_strdup(aCommand) : nsnull;
|
||||
m_ExtraInfo = nsnull;
|
||||
|
||||
m_DocLoader = aDocLoader;
|
||||
NS_ADDREF(m_DocLoader);
|
||||
|
||||
m_Container = aContainer;
|
||||
NS_IF_ADDREF(m_Container);
|
||||
|
||||
m_Observer = anObserver;
|
||||
NS_IF_ADDREF(m_Observer);
|
||||
|
||||
m_ExtraInfo = aExtraInfo;
|
||||
NS_IF_ADDREF(m_ExtraInfo);
|
||||
}
|
||||
|
||||
nsDocumentBindInfo::~nsDocumentBindInfo()
|
||||
{
|
||||
if (m_Command) {
|
||||
PR_Free(m_Command);
|
||||
}
|
||||
m_Command = nsnull;
|
||||
|
||||
NS_RELEASE (m_DocLoader);
|
||||
NS_IF_RELEASE(m_Url);
|
||||
NS_IF_RELEASE(m_NextStream);
|
||||
NS_IF_RELEASE(m_Container);
|
||||
NS_IF_RELEASE(m_Observer);
|
||||
NS_IF_RELEASE(m_ExtraInfo);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_DEFINE_IID(kIStreamListenerIID, NS_ISTREAMLISTENER_IID);
|
||||
NS_IMPL_ISUPPORTS(nsDocumentBindInfo,kIStreamListenerIID);
|
||||
|
||||
|
||||
nsresult nsDocumentBindInfo::Bind(const nsString& aURLSpec,
|
||||
nsIPostData* aPostData)
|
||||
{
|
||||
nsresult rv;
|
||||
|
||||
rv = NS_NewURL(&m_Url, aURLSpec);
|
||||
if (NS_OK != rv) {
|
||||
return rv;
|
||||
}
|
||||
|
||||
/* Store any POST data into the URL */
|
||||
if (nsnull != aPostData) {
|
||||
static NS_DEFINE_IID(kPostToServerIID, NS_IPOSTTOSERVER_IID);
|
||||
nsIPostToServer* pts;
|
||||
|
||||
rv = m_Url->QueryInterface(kPostToServerIID, (void **)&pts);
|
||||
if (NS_OK == rv) {
|
||||
const char* data = aPostData->GetData();
|
||||
|
||||
if (aPostData->IsFile()) {
|
||||
pts->SendDataFromFile(data);
|
||||
}
|
||||
else {
|
||||
pts->SendData(data, aPostData->GetDataLength());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Start the URL binding process... */
|
||||
rv = m_Url->Open(this);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::GetBindInfo(void)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
|
||||
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->GetBindInfo();
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnProgress(PRInt32 aProgress, PRInt32 aProgressMax,
|
||||
const nsString& aMsg)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
/* Pass the notification out to the next stream listener... */
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnProgress(aProgress, aProgressMax, aMsg);
|
||||
}
|
||||
|
||||
/* Pass the notification out to the Observer... */
|
||||
if (nsnull != m_Observer) {
|
||||
/* XXX: Should we ignore the return value? */
|
||||
(void) m_Observer->OnProgress(aProgress, aProgressMax, aMsg);
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnStartBinding(const char *aContentType)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
nsIDocumentWidget* viewer;
|
||||
|
||||
/*
|
||||
* 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_NextStream,
|
||||
&viewer);
|
||||
} else {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*
|
||||
* Give the document container the new viewer...
|
||||
*/
|
||||
rv = m_Container->Embed(viewer, m_Command, m_ExtraInfo);
|
||||
if (NS_OK != rv) {
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*
|
||||
* Pass the OnStartBinding(...) notification out to the document
|
||||
* IStreamListener.
|
||||
*/
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnStartBinding(aContentType);
|
||||
}
|
||||
|
||||
/* Pass the notification out to the Observer... */
|
||||
if (nsnull != m_Observer) {
|
||||
/* XXX: Should we ignore the return value? */
|
||||
(void) m_Observer->OnStartBinding(aContentType);
|
||||
}
|
||||
|
||||
done:
|
||||
NS_RELEASE(viewer);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnDataAvailable(nsIInputStream *aStream, PRInt32 aLength)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
NS_PRECONDITION(nsnull !=m_NextStream, "DocLoader: No stream for document");
|
||||
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnDataAvailable(aStream, aLength);
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
NS_METHOD nsDocumentBindInfo::OnStopBinding(PRInt32 aStatus, const nsString& aMsg)
|
||||
{
|
||||
nsresult rv = NS_OK;
|
||||
|
||||
if (nsnull != m_NextStream) {
|
||||
rv = m_NextStream->OnStopBinding(aStatus, aMsg);
|
||||
}
|
||||
|
||||
/* Pass the notification out to the Observer... */
|
||||
if (nsnull != m_Observer) {
|
||||
/* XXX: Should we ignore the return value? */
|
||||
(void) m_Observer->OnStopBinding(aStatus, aMsg);
|
||||
}
|
||||
|
||||
/*
|
||||
* The stream is complete... Tell the DocumentLoader to release us...
|
||||
*
|
||||
* This should cause the nsDocumentBindInfo instance to be deleted, so
|
||||
* DO NOT assume this is valid after the call!!
|
||||
*/
|
||||
m_DocLoader->LoadURLComplete(this);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*******************************************
|
||||
/* nsDocLoaderFactory
|
||||
/*******************************************/
|
||||
|
||||
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
|
||||
static NS_DEFINE_IID(kCDocumentLoader, NS_DOCUMENTLOADER_CID);
|
||||
|
||||
class nsDocumentLoaderFactory : public nsIFactory
|
||||
{
|
||||
public:
|
||||
nsDocumentLoaderFactory();
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
// nsIFactory methods
|
||||
NS_IMETHOD CreateInstance(nsISupports *aOuter,
|
||||
const nsIID &aIID,
|
||||
void **aResult);
|
||||
|
||||
NS_IMETHOD LockFactory(PRBool aLock);
|
||||
|
||||
|
||||
protected:
|
||||
virtual ~nsDocumentLoaderFactory();
|
||||
};
|
||||
|
||||
nsDocumentLoaderFactory::nsDocumentLoaderFactory()
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
}
|
||||
|
||||
nsDocumentLoaderFactory::~nsDocumentLoaderFactory()
|
||||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* Implementation of ISupports methods...
|
||||
*/
|
||||
NS_IMPL_ISUPPORTS(nsDocumentLoaderFactory,kIFactoryIID);
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocumentLoaderFactory::CreateInstance(nsISupports* aOuter,
|
||||
const nsIID& aIID,
|
||||
void** aResult)
|
||||
{
|
||||
nsresult rv;
|
||||
nsDocLoaderImpl* inst;
|
||||
|
||||
if (nsnull == aResult) {
|
||||
rv = NS_ERROR_NULL_POINTER;
|
||||
goto done;
|
||||
}
|
||||
*aResult = nsnull;
|
||||
|
||||
if (nsnull != aOuter) {
|
||||
rv = NS_ERROR_NO_AGGREGATION;
|
||||
goto done;
|
||||
}
|
||||
|
||||
inst = new nsDocLoaderImpl();
|
||||
if (nsnull == inst) {
|
||||
rv = NS_ERROR_OUT_OF_MEMORY;
|
||||
goto done;
|
||||
}
|
||||
|
||||
NS_ADDREF(inst); // RefCount = 1
|
||||
rv = inst->QueryInterface(aIID, aResult);
|
||||
NS_RELEASE(inst);
|
||||
|
||||
done:
|
||||
return rv;
|
||||
}
|
||||
|
||||
NS_IMETHODIMP
|
||||
nsDocumentLoaderFactory::LockFactory(PRBool aLock)
|
||||
{
|
||||
// Not implemented in simplest case.
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
extern "C" NS_WEB nsresult NS_NewDocumentLoaderFactory(nsIFactory** aFactory)
|
||||
{
|
||||
if (nsnull == aFactory) {
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
}
|
||||
|
||||
*aFactory = new nsDocumentLoaderFactory();
|
||||
if (nsnull == *aFactory) {
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
NS_ADDREF(*aFactory);
|
||||
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user