layout/xul/nsStackFrame.h
author Chris Manchester <cmanchester@mozilla.com>
Wed, 16 Jan 2019 22:46:38 +0000
changeset 514323 471d9fab61b34671f974dfa349e7972c200faa2b
parent 508163 6f3709b3878117466168c40affa7bca0b60cf75b
child 518473 525e804dc7e63855e026be9557af15340d71455a
permissions -rw-r--r--
Bug 1507631 - Remove mentions of MOZ_SIGN_CMD from the build system. r=nalexander Differential Revision: https://phabricator.services.mozilla.com/D16754

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

/**

  Eric D Vaughan
  A frame that can have multiple children. Only one child may be displayed at
one time. So the can be flipped though like a Stack of cards.

**/

#ifndef nsStackFrame_h___
#define nsStackFrame_h___

#include "mozilla/Attributes.h"
#include "nsBoxFrame.h"

class nsStackFrame final : public nsBoxFrame {
 public:
  NS_DECL_FRAMEARENA_HELPERS(nsStackFrame)

  friend nsIFrame* NS_NewStackFrame(nsIPresShell* aPresShell,
                                    ComputedStyle* aStyle);

#ifdef DEBUG_FRAME_DUMP
  virtual nsresult GetFrameName(nsAString& aResult) const override {
    return MakeFrameName(NS_LITERAL_STRING("Stack"), aResult);
  }
#endif

  virtual void BuildDisplayListForChildren(
      nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) override;

 protected:
  explicit nsStackFrame(ComputedStyle* aStyle);
};  // class nsStackFrame

#endif