pjs/uriloader/base/nsDocLoader.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
/*
*/
#ifndef nsDocLoader_h__
#define nsDocLoader_h__
#include "nsIDocumentLoader.h"
#include "nsIWebProgress.h"
#include "nsIWebProgressListener.h"
#include "nsIStreamObserver.h"
#include "nsWeakReference.h"
#include "nsILoadGroup.h"
#include "nsISupportsArray.h"
#include "nsVoidArray.h"
#include "nsString.h"
#include "nsIChannel.h"
#include "nsIProgressEventSink.h"
#include "nsIInterfaceRequestor.h"
#include "nsCOMPtr.h"
struct nsChannelInfo;
/****************************************************************************
* nsDocLoaderImpl implementation...
****************************************************************************/
class nsDocLoaderImpl : public nsIDocumentLoader,
public nsIStreamObserver,
public nsSupportsWeakReference,
public nsIProgressEventSink,
public nsIWebProgress,
public nsIInterfaceRequestor
{
public:
nsDocLoaderImpl();
nsresult Init();
// for nsIGenericFactory:
static NS_IMETHODIMP Create(nsISupports *aOuter, const nsIID &aIID, void **aResult);
NS_DECL_ISUPPORTS
NS_DECL_NSIDOCUMENTLOADER
// nsIProgressEventSink
NS_DECL_NSIPROGRESSEVENTSINK
// nsIStreamObserver methods: (for observing the load group)
NS_DECL_NSISTREAMOBSERVER
NS_DECL_NSIWEBPROGRESS
NS_DECL_NSIINTERFACEREQUESTOR
// Implementation specific methods...
protected:
virtual ~nsDocLoaderImpl();
nsresult SetDocLoaderParent(nsDocLoaderImpl * aLoader);
nsresult RemoveChildGroup(nsDocLoaderImpl *aLoader);
void DocLoaderIsEmpty(nsresult aStatus);
void FireOnStartDocumentLoad(nsDocLoaderImpl* aLoadInitiator,
nsIChannel* aChannel);
void FireOnEndDocumentLoad(nsDocLoaderImpl* aLoadInitiator,
nsIChannel *aDocChannel,
nsresult aStatus);
void FireOnStartURLLoad(nsDocLoaderImpl* aLoadInitiator,
nsIChannel* channel);
void FireOnEndURLLoad(nsDocLoaderImpl* aLoadInitiator,
nsIChannel* channel, nsresult aStatus);
void FireOnProgressChange(nsDocLoaderImpl* aLoadInitiator,
nsIChannel* aChannel,
PRInt32 aProgress,
PRInt32 aProgressMax,
PRInt32 aProgressDelta,
PRInt32 aTotalProgress,
PRInt32 aMaxTotalProgress);
void FireOnStateChange(nsIWebProgress *aProgress,
nsIRequest* aChannel,
PRInt32 aStateFlags,
nsresult aStatus);
void doStartDocumentLoad();
void doStartURLLoad(nsIChannel *aChannel);
void doStopURLLoad(nsIChannel *aChannel, nsresult aStatus);
void doStopDocumentLoad(nsIChannel* aChannel, nsresult aStatus);
// get web progress returns our web progress listener or if
// we don't have one, it will look up the doc loader hierarchy
// to see if one of our parent doc loaders has one.
nsresult GetParentWebProgressListener(nsDocLoaderImpl * aDocLoader, nsIWebProgressListener ** aWebProgres);
protected:
// IMPORTANT: The ownership implicit in the following member
// variables has been explicitly checked and set using nsCOMPtr
// for owning pointers and raw COM interface pointers for weak
// (ie, non owning) references. If you add any members to this
// class, please make the ownership explicit (pinkerton, scc).
nsCOMPtr<nsIChannel> mDocumentChannel; // [OWNER] ???compare with document
nsVoidArray mDocObservers;
nsVoidArray mListenerList;
nsISupports* mContainer; // [WEAK] it owns me!
nsDocLoaderImpl* mParent; // [WEAK]
nsCString mCommand;
/*
* This flag indicates that the loader is loading a document. It is set
* from the call to LoadDocument(...) until the OnConnectionsComplete(...)
* notification is fired...
*/
PRBool mIsLoadingDocument;
nsCOMPtr<nsILoadGroup> mLoadGroup;
nsCOMPtr<nsISupportsArray> mChildList;
// The following member variables are related to the new nsIWebProgress
// feedback interfaces that travis cooked up.
nsCOMPtr<nsIWebProgressListener> mProgressListener;
PRInt32 mProgressStateFlags;
PRInt32 mCurrentSelfProgress;
PRInt32 mMaxSelfProgress;
PRInt32 mCurrentTotalProgress;
PRInt32 mMaxTotalProgress;
nsVoidArray mChannelInfoList;
private:
nsresult AddChannelInfo(nsIChannel *aChannel);
nsChannelInfo *GetChannelInfo(nsIChannel *aChannel);
nsresult ClearChannelInfoList(void);
void CalculateMaxProgress(PRInt32 *aMax);
/// void DumpChannelInfo(void);
// used to clear our internal progress state between loads...
void ClearInternalProgress();
};
#endif /* nsDocLoader_h__ */