gecko-dev/layout/base/nsIPercentBSizeObserver.h
Jonathan Kew 10bd90547b Bug 1174711 - patch 1 - Rename nsIPercentHeightObserver to nsIPercentBSizeObserver, and update related frame methods to match. r=dholbert
--HG--
rename : layout/base/nsIPercentHeightObserver.h => layout/base/nsIPercentBSizeObserver.h
2015-06-22 10:33:34 +01:00

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1.0 KiB
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsIPercentBSizeObserver_h___
#define nsIPercentBSizeObserver_h___
#include "nsQueryFrame.h"
struct nsHTMLReflowState;
/**
* This interface is supported by frames that need to provide computed bsize
* values to children during reflow which would otherwise not happen. Currently
* only table cells support this.
*/
class nsIPercentBSizeObserver
{
public:
NS_DECL_QUERYFRAME_TARGET(nsIPercentBSizeObserver)
// Notify the observer that aReflowState has no computed bsize,
// but it has a percent bsize
virtual void NotifyPercentBSize(const nsHTMLReflowState& aReflowState) = 0;
// Ask the observer if it should observe aReflowState.frame
virtual bool NeedsToObserve(const nsHTMLReflowState& aReflowState) = 0;
};
#endif // nsIPercentBSizeObserver_h___