85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsFrameImageLoader_h___
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#define nsFrameImageLoader_h___
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#include "nsIFrameImageLoader.h"
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#include "nsSize.h"
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#include "nsString.h"
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struct nsRect;
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/**
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* An image loader for frame's.
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*/
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class nsFrameImageLoader : public nsIFrameImageLoader {
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public:
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsIImageRequestObserver
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virtual void Notify(nsIImageRequest *aImageRequest,
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nsIImage *aImage,
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nsImageNotification aNotificationType,
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PRInt32 aParam1, PRInt32 aParam2,
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void *aParam3);
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virtual void NotifyError(nsIImageRequest *aImageRequest,
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nsImageError aErrorType);
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// nsIFrameImageLoader
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NS_IMETHOD Init(nsIPresContext* aPresContext,
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nsIImageGroup* aGroup,
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const nsString& aURL,
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const nscolor* aBackgroundColor,
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nsIFrame* aTargetFrame,
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PRBool aNeedSizeUpdate);
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NS_IMETHOD StopImageLoad();
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NS_IMETHOD AbortImageLoad();
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NS_IMETHOD GetTargetFrame(nsIFrame*& aFrameResult) const;
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NS_IMETHOD GetURL(nsString& aResult) const;
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NS_IMETHOD GetImage(nsIImage*& aResult) const;
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NS_IMETHOD GetSize(nsSize& aResult) const;
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NS_IMETHOD GetImageLoadStatus(PRIntn& aLoadStatus) const;
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NS_IMETHOD SizeOf(nsISizeOfHandler* aHandler) const;
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protected:
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nsFrameImageLoader();
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~nsFrameImageLoader();
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void ReflowFrame();
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void DamageRepairFrame(const nsRect* aDamageRect);
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nsString mURL;
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nsIImage* mImage;
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nsSize mSize;
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nsImageError mError;
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nsIFrame* mTargetFrame;
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nsIPresContext* mPresContext;
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nsIImageRequest* mImageRequest;
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PRUint8 mImageLoadStatus;
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friend NS_LAYOUT nsresult NS_NewFrameImageLoader(nsIFrameImageLoader**);
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};
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extern NS_LAYOUT nsresult
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NS_NewFrameImageLoader(nsIFrameImageLoader** aInstancePtrResult);
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#endif /* nsFrameImageLoader_h___ */
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