nsAutoLayoutPhase.h

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/* -*- 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/. */

#ifndef nsAutoLayoutPhase_h

#define nsAutoLayoutPhase_h

#ifdef DEBUG

#  include <stdint.h>

enum class nsLayoutPhase : uint8_t;

class nsPresContext;

struct nsAutoLayoutPhase {

  nsAutoLayoutPhase(nsPresContext* aPresContext, nsLayoutPhase aPhase);

  ~nsAutoLayoutPhase();

  void Enter();

  void Exit();

 private:

  nsPresContext* mPresContext;

  nsLayoutPhase mPhase;

  uint32_t mCount;

};

#  define AUTO_LAYOUT_PHASE_ENTRY_POINT(pc_, phase_) \

    nsAutoLayoutPhase autoLayoutPhase((pc_), (nsLayoutPhase::phase_))

#  define LAYOUT_PHASE_TEMP_EXIT() \

    PR_BEGIN_MACRO                 \

    autoLayoutPhase.Exit();        \

    PR_END_MACRO

#  define LAYOUT_PHASE_TEMP_REENTER() \

    PR_BEGIN_MACRO                    \

    autoLayoutPhase.Enter();          \

    PR_END_MACRO

#else  // DEBUG

#  define AUTO_LAYOUT_PHASE_ENTRY_POINT(pc_, phase_) PR_BEGIN_MACRO PR_END_MACRO

#  define LAYOUT_PHASE_TEMP_EXIT() PR_BEGIN_MACRO PR_END_MACRO

#  define LAYOUT_PHASE_TEMP_REENTER() PR_BEGIN_MACRO PR_END_MACRO

#endif  // DEBUG

#endif  // nsAutoLayoutPhase_h