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b7eaedb6ea
Depends on D3870 Differential Revision: https://phabricator.services.mozilla.com/D3871 --HG-- extra : moz-landing-system : lando
34 lines
824 B
C++
34 lines
824 B
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_PaintTracker_h
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#define mozilla_PaintTracker_h
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#include "mozilla/Attributes.h"
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#include "nsDebug.h"
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namespace mozilla {
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class MOZ_STACK_CLASS PaintTracker
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{
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public:
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PaintTracker() { ++gPaintTracker; }
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~PaintTracker()
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{
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NS_ASSERTION(gPaintTracker > 0, "Mismatched constructor/destructor");
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--gPaintTracker;
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}
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static bool IsPainting() { return !!gPaintTracker; }
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private:
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static int gPaintTracker;
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};
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} // namespace mozilla
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#endif // mozilla_PaintTracker_h
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