michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #ifndef nsSelectsAreaFrame_h___
michael@0: #define nsSelectsAreaFrame_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsBlockFrame.h"
michael@0: 
michael@0: class nsSelectsAreaFrame : public nsBlockFrame
michael@0: {
michael@0: public:
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   friend nsIFrame* NS_NewSelectsAreaFrame(nsIPresShell* aShell, nsStyleContext* aContext, nsFrameState aFlags);
michael@0: 
michael@0:   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
michael@0:                                 const nsRect&           aDirtyRect,
michael@0:                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;
michael@0: 
michael@0:   void BuildDisplayListInternal(nsDisplayListBuilder*   aBuilder,
michael@0:                                 const nsRect&           aDirtyRect,
michael@0:                                 const nsDisplayListSet& aLists);
michael@0: 
michael@0:   virtual nsresult Reflow(nsPresContext*           aCX,
michael@0:                           nsHTMLReflowMetrics&     aDesiredSize,
michael@0:                           const nsHTMLReflowState& aReflowState,
michael@0:                           nsReflowStatus&          aStatus) MOZ_OVERRIDE;
michael@0: 
michael@0:   nscoord HeightOfARow() const { return mHeightOfARow; }
michael@0:   
michael@0: protected:
michael@0:   nsSelectsAreaFrame(nsStyleContext* aContext) :
michael@0:     nsBlockFrame(aContext),
michael@0:     mHeightOfARow(0)
michael@0:   {}
michael@0: 
michael@0:   // We cache the height of a single row so that changes to the "size"
michael@0:   // attribute, padding, etc. can all be handled with only one reflow.  We'll
michael@0:   // have to reflow twice if someone changes our font size or something like
michael@0:   // that, so that the heights of our options will change.
michael@0:   nscoord mHeightOfARow;
michael@0: };
michael@0: 
michael@0: #endif /* nsSelectsAreaFrame_h___ */