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/* 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 https://mozilla.org/MPL/2.0/. */
/*
* This file contains forward declarations and typedefs for types that cbindgen
* cannot understand but renames / prefixes, and includes for some of the types
* it needs.
*/
#ifndef mozilla_ServoStyleConsts_h
# error "This file is only meant to be included from ServoStyleConsts.h"
#endif
#ifndef mozilla_ServoStyleConstsForwards_h
# define mozilla_ServoStyleConstsForwards_h
# include "nsColor.h"
# include "nsCoord.h"
# include "mozilla/AtomArray.h"
# include "mozilla/IntegerRange.h"
# include "mozilla/Span.h"
# include "Units.h"
# include "mozilla/gfx/Types.h"
# include "mozilla/CORSMode.h"
# include "mozilla/MemoryReporting.h"
# include "mozilla/ServoTypes.h"
# include "mozilla/ServoBindingTypes.h"
# include "mozilla/Vector.h"
# include "nsCSSPropertyID.h"
# include "nsCompatibility.h"
# include "nsIURI.h"
# include "mozilla/image/Resolution.h"
# include <atomic>
struct RawServoAnimationValueTable;
class nsAtom;
class nsIFrame;
class nsINode;
class nsIContent;
class nsCSSPropertyIDSet;
class nsPresContext;
class nsSimpleContentList;
class imgRequestProxy;
struct nsCSSValueSharedList;
class gfxFontFeatureValueSet;
struct gfxFontFeature;
struct GeckoFontMetrics;
namespace mozilla {
namespace gfx {
struct FontVariation;
} // namespace gfx
} // namespace mozilla
typedef mozilla::gfx::FontVariation gfxFontVariation;
enum nsCSSUnit : uint32_t;
enum nsChangeHint : uint32_t;
namespace nsStyleTransformMatrix {
enum class MatrixTransformOperator : uint8_t;
}
template <typename T>
class nsMainThreadPtrHolder;
namespace mozilla {
class ComputedStyle;
using Matrix4x4Components = float[16];
using StyleMatrix4x4Components = Matrix4x4Components;
// This is sound because std::num::NonZeroUsize is repr(transparent).
//
// It is just the case that cbindgen doesn't understand it natively.
using StyleNonZeroUsize = uintptr_t;
struct Keyframe;
struct PropertyStyleAnimationValuePair;
using ComputedKeyframeValues = nsTArray<PropertyStyleAnimationValuePair>;
class ComputedStyle;
enum LogicalAxis : uint8_t;
class SeenPtrs;
class SharedFontList;
class StyleSheet;
class WritingMode;
class ServoElementSnapshotTable;
template <typename T>
struct StyleForgottenArcSlicePtr;
struct AnimatedPropertyID;
struct AnimationPropertySegment;
struct AspectRatio;
struct ComputedTiming;
struct URLExtraData;
enum HalfCorner : uint8_t;
enum LogicalSide : uint8_t;
enum class PseudoStyleType : uint8_t;
enum class OriginFlags : uint8_t;
enum class UseBoxSizing : uint8_t;
namespace css {
class Loader;
class LoaderReusableStyleSheets;
class SheetLoadData;
using SheetLoadDataHolder = nsMainThreadPtrHolder<SheetLoadData>;
enum SheetParsingMode : uint8_t;
} // namespace css
namespace dom {
enum class IterationCompositeOperation : uint8_t;
enum class CallerType : uint32_t;
class Element;
class Document;
class ImageTracker;
} // namespace dom
namespace ipc {
class ByteBuf;
} // namespace ipc
// Replacement for a Rust Box<T> for a non-dynamically-sized-type.
//
// TODO(emilio): If this was some sort of nullable box then this could be made
// to work with moves, and also reduce memory layout size of stuff, potentially.
template <typename T>
struct StyleBox {
explicit StyleBox(UniquePtr<T> aPtr) : mRaw(aPtr.release()) {
MOZ_DIAGNOSTIC_ASSERT(mRaw);
}
~StyleBox() {
MOZ_DIAGNOSTIC_ASSERT(mRaw);
delete mRaw;
}
StyleBox(const StyleBox& aOther) : StyleBox(MakeUnique<T>(*aOther)) {}
StyleBox& operator=(const StyleBox& aOther) const {
delete mRaw;
mRaw = MakeUnique<T>(*aOther).release();
return *this;
}
const T* operator->() const {
MOZ_DIAGNOSTIC_ASSERT(mRaw);
return mRaw;
}
const T& operator*() const {
MOZ_DIAGNOSTIC_ASSERT(mRaw);
return *mRaw;
}
T* operator->() {
MOZ_DIAGNOSTIC_ASSERT(mRaw);
return mRaw;
}
T& operator*() {
MOZ_DIAGNOSTIC_ASSERT(mRaw);
return *mRaw;
}
bool operator==(const StyleBox& aOther) const { return *(*this) == *aOther; }
bool operator!=(const StyleBox& aOther) const { return *(*this) != *aOther; }
private:
T* mRaw;
};
// Work-around weird cbindgen renaming / avoiding moving stuff outside its
// namespace.
using StyleImageTracker = dom::ImageTracker;
using StyleLoader = css::Loader;
using StyleLoaderReusableStyleSheets = css::LoaderReusableStyleSheets;
using StyleCallerType = dom::CallerType;
using StyleSheetParsingMode = css::SheetParsingMode;
using StyleSheetLoadData = css::SheetLoadData;
using StyleSheetLoadDataHolder = css::SheetLoadDataHolder;
using StyleGeckoMallocSizeOf = MallocSizeOf;
using StyleDomStyleSheet = StyleSheet;
using StyleRawGeckoNode = nsINode;
using StyleRawGeckoElement = dom::Element;
using StyleDocument = dom::Document;
using StyleComputedValues = ComputedStyle;
using StyleIterationCompositeOperation = dom::IterationCompositeOperation;
using StyleMatrixTransformOperator =
nsStyleTransformMatrix::MatrixTransformOperator;
# define SERVO_LOCKED_ARC_TYPE(name_) struct StyleLocked##type_;
# include "mozilla/ServoLockedArcTypeList.h"
# undef SERVO_LOCKED_ARC_TYPE
# define SERVO_BOXED_TYPE(name_, type_) struct Style##type_;
# include "mozilla/ServoBoxedTypeList.h"
# undef SERVO_BOXED_TYPE
using StyleAtomicUsize = std::atomic<size_t>;
# define SERVO_FIXED_POINT_HELPERS(T, RawT, FractionBits) \
static constexpr RawT kPointFive = 1 << (FractionBits - 1); \
static constexpr uint16_t kScale = 1 << FractionBits; \
static constexpr float kInverseScale = 1.0f / kScale; \
static T FromRaw(RawT aRaw) { return {{aRaw}}; } \
static T FromFloat(float aFloat) { \
return FromRaw(RawT(aFloat * kScale)); \
} \
static T FromInt(RawT aInt) { return FromRaw(RawT(aInt * kScale)); } \
RawT Raw() const { return _0.value; } \
uint16_t UnsignedRaw() const { return uint16_t(Raw()); } \
float ToFloat() const { return Raw() * kInverseScale; } \
RawT ToIntRounded() const { return (Raw() + kPointFive) >> FractionBits; } \
inline void ToString(nsACString&) const;
} // namespace mozilla
# ifndef HAVE_64BIT_BUILD
static_assert(sizeof(void*) == 4, "");
# define SERVO_32_BITS 1
# endif
# define CBINDGEN_IS_GECKO
#endif
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