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