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       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : /**
       7             : 
       8             :   Eric D Vaughan
       9             :   A frame that can have multiple children. Only one child may be displayed at one time. So the
      10             :   can be flipped though like a Stack of cards.
      11             : 
      12             : **/
      13             : 
      14             : #ifndef nsStackFrame_h___
      15             : #define nsStackFrame_h___
      16             : 
      17             : #include "mozilla/Attributes.h"
      18             : #include "nsBoxFrame.h"
      19             : 
      20           4 : class nsStackFrame final : public nsBoxFrame
      21             : {
      22             : public:
      23         218 :   NS_DECL_FRAMEARENA_HELPERS(nsStackFrame)
      24             : 
      25             :   friend nsIFrame* NS_NewStackFrame(nsIPresShell* aPresShell,
      26             :                                     nsStyleContext* aContext);
      27             : 
      28             : #ifdef DEBUG_FRAME_DUMP
      29           0 :   virtual nsresult GetFrameName(nsAString& aResult) const override
      30             :   {
      31           0 :     return MakeFrameName(NS_LITERAL_STRING("Stack"), aResult);
      32             :   }
      33             : #endif
      34             : 
      35             :   virtual void BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
      36             :                                            const nsRect&           aDirtyRect,
      37             :                                            const nsDisplayListSet& aLists) override;
      38             : 
      39             : protected:
      40             :   explicit nsStackFrame(nsStyleContext* aContext);
      41             : }; // class nsStackFrame
      42             : 
      43             : 
      44             : 
      45             : #endif
      46             :