mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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196 lines
6.0 KiB
C++
196 lines
6.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Stuart Parmenter <pavlov@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef imgRequest_h__
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#define imgRequest_h__
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#include "imgILoad.h"
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#include "imgIContainer.h"
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#include "imgIDecoder.h"
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#include "imgIDecoderObserver.h"
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#include "nsIChannelEventSink.h"
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#include "nsIContentSniffer.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIRequest.h"
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#include "nsIProperties.h"
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#include "nsIStreamListener.h"
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#include "nsIURI.h"
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#include "nsIPrincipal.h"
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#include "nsCategoryCache.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsTObserverArray.h"
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#include "nsWeakReference.h"
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class imgCacheValidator;
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class imgRequestProxy;
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class imgCacheEntry;
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enum {
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onStartRequest = PR_BIT(0),
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onStartDecode = PR_BIT(1),
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onStartContainer = PR_BIT(2),
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onStopContainer = PR_BIT(3),
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onStopDecode = PR_BIT(4),
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onStopRequest = PR_BIT(5)
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};
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class imgRequest : public imgILoad,
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public imgIDecoderObserver,
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public nsIStreamListener,
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public nsSupportsWeakReference,
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public nsIChannelEventSink,
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public nsIInterfaceRequestor
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{
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public:
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imgRequest();
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virtual ~imgRequest();
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NS_DECL_ISUPPORTS
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nsresult Init(nsIURI *aURI,
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nsIRequest *aRequest,
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nsIChannel *aChannel,
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imgCacheEntry *aCacheEntry,
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void *aCacheId,
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void *aLoadId);
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// Callers must call NotifyProxyListener later.
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nsresult AddProxy(imgRequestProxy *proxy);
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// aNotify==PR_FALSE still sends OnStopRequest.
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nsresult RemoveProxy(imgRequestProxy *proxy, nsresult aStatus, PRBool aNotify);
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nsresult NotifyProxyListener(imgRequestProxy *proxy);
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void SniffMimeType(const char *buf, PRUint32 len);
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// a request is "reusable" if it has already been loaded, or it is
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// currently being loaded on the same event queue as the new request
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// being made...
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PRBool IsReusable(void *aCacheId) { return !mLoading || (aCacheId == mCacheId); }
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// get the current or last network status from our
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// internal nsIChannel.
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nsresult GetNetworkStatus();
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private:
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friend class imgCacheEntry;
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friend class imgRequestProxy;
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friend class imgLoader;
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friend class imgCacheValidator;
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inline void SetLoadId(void *aLoadId) {
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mLoadId = aLoadId;
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mLoadTime = PR_Now();
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}
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inline PRUint32 GetImageStatus() const { return mImageStatus; }
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inline nsresult GetResultFromImageStatus(PRUint32 aStatus) const;
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void Cancel(nsresult aStatus);
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nsresult GetURI(nsIURI **aURI);
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nsresult GetPrincipal(nsIPrincipal **aPrincipal);
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nsresult GetSecurityInfo(nsISupports **aSecurityInfo);
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void RemoveFromCache();
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inline const char *GetMimeType() const {
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return mContentType.get();
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}
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inline nsIProperties *Properties() {
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return mProperties;
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}
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// Return true if at least one of our proxies, excluding
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// aProxyToIgnore, has an observer. aProxyToIgnore may be null.
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PRBool HaveProxyWithObserver(imgRequestProxy* aProxyToIgnore) const;
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// Return the priority of the underlying network request, or return
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// PRIORITY_NORMAL if it doesn't support nsISupportsPriority.
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PRInt32 Priority() const;
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// Adjust the priority of the underlying network request by the given delta
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// on behalf of the given proxy.
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void AdjustPriority(imgRequestProxy *aProxy, PRInt32 aDelta);
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public:
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NS_DECL_IMGILOAD
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NS_DECL_IMGIDECODEROBSERVER
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NS_DECL_IMGICONTAINEROBSERVER
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NS_DECL_NSISTREAMLISTENER
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NS_DECL_NSIREQUESTOBSERVER
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NS_DECL_NSICHANNELEVENTSINK
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NS_DECL_NSIINTERFACEREQUESTOR
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private:
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nsCOMPtr<nsIRequest> mRequest;
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nsCOMPtr<nsIURI> mURI;
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nsCOMPtr<nsIPrincipal> mPrincipal;
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nsCOMPtr<imgIContainer> mImage;
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nsCOMPtr<imgIDecoder> mDecoder;
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nsCOMPtr<nsIProperties> mProperties;
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nsCOMPtr<nsISupports> mSecurityInfo;
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nsCOMPtr<nsIChannel> mChannel;
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nsCOMPtr<nsIInterfaceRequestor> mPrevChannelSink;
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nsTObserverArray<imgRequestProxy*> mObservers;
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PRPackedBool mLoading;
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PRPackedBool mProcessing;
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PRPackedBool mHadLastPart;
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PRUint32 mNetworkStatus;
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PRUint32 mImageStatus;
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PRUint32 mState;
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nsCString mContentType;
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nsRefPtr<imgCacheEntry> mCacheEntry; /* we hold on to this to this so long as we have observers */
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void *mCacheId;
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void *mLoadId;
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PRTime mLoadTime;
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imgCacheValidator *mValidator;
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PRBool mIsMultiPartChannel;
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nsCategoryCache<nsIContentSniffer> mImageSniffers;
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};
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#endif
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