e191c422d9
nsHTMLReflowState structure git-svn-id: svn://10.0.0.236/trunk@11749 18797224-902f-48f8-a5cc-f745e15eee43
95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
#ifndef nsHTMLImage_h___
|
|
#define nsHTMLImage_h___
|
|
|
|
#include "nslayout.h"
|
|
#include "nsIFrameImageLoader.h"
|
|
#include "nsString.h"
|
|
class nsIFrame;
|
|
class nsIFrameImageLoader;
|
|
class nsIPresContext;
|
|
class nsISizeOfHandler;
|
|
struct nsHTMLReflowState;
|
|
struct nsHTMLReflowMetrics;
|
|
struct nsSize;
|
|
|
|
/**
|
|
* HTML image loader. This is designed to encapsulate the loading
|
|
* and sizing process of html images (basically so that the logic
|
|
* can be reused in the image button form control code and the html
|
|
* image layout code).
|
|
*/
|
|
class nsHTMLImageLoader {
|
|
public:
|
|
nsHTMLImageLoader();
|
|
~nsHTMLImageLoader();
|
|
|
|
void DestroyLoader() {
|
|
NS_IF_RELEASE(mImageLoader);
|
|
mLoadImageFailed = PR_FALSE;
|
|
mLoadBrokenImageFailed = PR_FALSE;
|
|
}
|
|
|
|
nsIImage* GetImage();
|
|
|
|
nsresult SetURL(const nsString& aURLSpec);
|
|
|
|
nsresult SetBaseHREF(const nsString& aBaseHREF);
|
|
|
|
void GetURL(nsString& aResult) {
|
|
if (nsnull != mURLSpec) {
|
|
aResult = *mURLSpec;
|
|
}
|
|
}
|
|
|
|
void GetBaseHREF(nsString& aResult) {
|
|
aResult.Truncate();
|
|
if (nsnull != mBaseHREF) {
|
|
aResult = *mBaseHREF;
|
|
}
|
|
}
|
|
|
|
nsresult StartLoadImage(nsIPresContext* aPresContext,
|
|
nsIFrame* aForFrame,
|
|
nsFrameImageLoaderCB aCallBack,
|
|
PRBool aNeedSizeUpdate,
|
|
PRIntn& aLoadStatus);
|
|
|
|
void GetDesiredSize(nsIPresContext* aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsIFrame* aTargetFrame,
|
|
nsFrameImageLoaderCB aCallBack,
|
|
nsHTMLReflowMetrics& aDesiredSize);
|
|
|
|
PRBool GetLoadImageFailed() {
|
|
return mLoadImageFailed;
|
|
}
|
|
|
|
void SizeOf(nsISizeOfHandler* aHandler) const;
|
|
|
|
protected:
|
|
nsIFrameImageLoader* mImageLoader;
|
|
PRPackedBool mLoadImageFailed;
|
|
PRPackedBool mLoadBrokenImageFailed;
|
|
nsString* mURLSpec;
|
|
nsString* mBaseHREF;
|
|
};
|
|
|
|
#endif /* nsHTMLImage_h___ */
|