gecko-dev/layout/generic/nsIAnonymousContentCreator.h

83 lines
3.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
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*
* The Original Code is mozilla.org code.
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* The Initial Developer of the Original Code is
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* Contributor(s):
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#ifndef nsIAnonymousContentCreator_h___
#define nsIAnonymousContentCreator_h___
#include "nsISupports.h"
#include "nsIContent.h"
#include "nsCOMPtr.h"
class nsPresContext;
class nsISupportsArray;
class nsIAtom;
class nsIFrame;
// {41a69e00-2d6d-11d3-b033-a1357139787c}
#define NS_IANONYMOUS_CONTENT_CREATOR_IID { 0x41a69e00, 0x2d6d, 0x11d3, { 0xb0, 0x33, 0xa1, 0x35, 0x71, 0x39, 0x78, 0x7c } }
/**
* Any source for anonymous content can implement this interface to provide it.
* HTML frames like nsFileControlFrame currently use this as well as XUL frames
* like nsScrollbarFrame & nsSliderFrame.
*/
class nsIAnonymousContentCreator : public nsISupports {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IANONYMOUS_CONTENT_CREATOR_IID)
NS_IMETHOD CreateAnonymousContent(nsPresContext* aPresContext,
nsISupportsArray& aAnonymousItems)=0;
// If the creator doesn't want to create a special frame or frame hierarchy
// then it should null out aFrame and return NS_ERROR_FAILURE
NS_IMETHOD CreateFrameFor(nsPresContext* aPresContext,
nsIContent * aContent,
nsIFrame** aFrame)=0;
// This gets called after the frames for the anonymous content have been
// created and added to the frame tree. By default it does nothing.
virtual void PostCreateFrames() {}
};
nsresult NS_CreateAnonymousNode(nsIContent* aParent, nsIAtom* aTag, PRInt32 aNameSpaceId, nsCOMPtr<nsIContent>& aNewNode);
#endif