From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- layout/generic/nsFrameState.h | 74 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 layout/generic/nsFrameState.h (limited to 'layout/generic/nsFrameState.h') diff --git a/layout/generic/nsFrameState.h b/layout/generic/nsFrameState.h new file mode 100644 index 0000000000..8411c3a115 --- /dev/null +++ b/layout/generic/nsFrameState.h @@ -0,0 +1,74 @@ +/* -*- 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/. */ + +/* constants for frame state bits and a type to store them in a uint64_t */ + +#ifndef nsFrameState_h_ +#define nsFrameState_h_ + +#include + +#ifdef DEBUG +# include "nsString.h" + +class nsIFrame; +#endif + +typedef uint64_t nsFrameState_size_t; + +#define NS_FRAME_STATE_BIT(n_) (nsFrameState(nsFrameState_size_t(1) << (n_))) + +enum nsFrameState : nsFrameState_size_t { +#define FRAME_STATE_BIT(group_, value_, name_) \ + name_ = NS_FRAME_STATE_BIT(value_), +#include "nsFrameStateBits.h" +#undef FRAME_STATE_BIT +}; + +constexpr nsFrameState operator|(nsFrameState aLeft, nsFrameState aRight) { + return nsFrameState(nsFrameState_size_t(aLeft) | nsFrameState_size_t(aRight)); +} + +constexpr nsFrameState operator&(nsFrameState aLeft, nsFrameState aRight) { + return nsFrameState(nsFrameState_size_t(aLeft) & nsFrameState_size_t(aRight)); +} + +constexpr nsFrameState& operator|=(nsFrameState& aLeft, nsFrameState aRight) { + aLeft = aLeft | aRight; + return aLeft; +} + +constexpr nsFrameState& operator&=(nsFrameState& aLeft, nsFrameState aRight) { + aLeft = aLeft & aRight; + return aLeft; +} + +constexpr nsFrameState operator~(nsFrameState aRight) { + return nsFrameState(~nsFrameState_size_t(aRight)); +} + +constexpr nsFrameState operator^(nsFrameState aLeft, nsFrameState aRight) { + return nsFrameState(nsFrameState_size_t(aLeft) ^ nsFrameState_size_t(aRight)); +} + +constexpr nsFrameState& operator^=(nsFrameState& aLeft, nsFrameState aRight) { + aLeft = aLeft ^ aRight; + return aLeft; +} + +// Bits 20-31 and 60-63 of the frame state are reserved for implementations. +#define NS_FRAME_IMPL_RESERVED nsFrameState(0xF0000000FFF00000) +#define NS_FRAME_RESERVED ~NS_FRAME_IMPL_RESERVED + +namespace mozilla { +#ifdef DEBUG +nsCString GetFrameState(nsIFrame* aFrame); +void PrintFrameState(nsIFrame* aFrame); +void DebugVerifyFrameStateBits(); +#endif +} // namespace mozilla + +#endif /* nsFrameState_h_ */ -- cgit v1.2.3