gecko-dev/layout/style/ServoBindings.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 mozilla_ServoBindings_h
#define mozilla_ServoBindings_h
#include <stdint.h>
#include "mozilla/AtomArray.h"
#include "mozilla/ServoTypes.h"
#include "mozilla/ServoBindingTypes.h"
#include "mozilla/ServoComputedDataInlines.h"
#include "mozilla/ServoElementSnapshot.h"
#include "mozilla/css/DocumentMatchingFunction.h"
#include "mozilla/css/SheetLoadData.h"
#include "mozilla/css/SheetParsingMode.h"
#include "mozilla/EffectCompositor.h"
#include "mozilla/ComputedTimingFunction.h"
#include "nsChangeHint.h"
#include "nsIDocument.h"
/*
* API for Servo to access Gecko data structures.
*
* Functions beginning with Gecko_ are implemented in Gecko and invoked from Servo.
* Functions beginning with Servo_ are implemented in Servo and invoked from Gecko.
*/
class nsAtom;
class nsIPrincipal;
class nsIURI;
struct nsFont;
namespace mozilla {
class FontFamilyList;
struct FontFamilyName;
enum FontFamilyType : uint8_t;
class SharedFontList;
enum class CSSPseudoElementType : uint8_t;
struct Keyframe;
struct StyleTransition;
namespace css {
class ErrorReporter;
struct URLValue;
struct ImageValue;
class LoaderReusableStyleSheets;
};
namespace dom {
enum class IterationCompositeOperation : uint8_t;
};
enum class UpdateAnimationsTasks : uint8_t;
struct LangGroupFontPrefs;
class SeenPtrs;
class ComputedStyle;
class StyleSheet;
class ServoElementSnapshotTable;
}
using mozilla::FontFamilyList;
using mozilla::FontFamilyName;
using mozilla::FontFamilyType;
using mozilla::ServoElementSnapshot;
using mozilla::SharedFontList;
struct nsMediaFeature;
class nsSimpleContentList;
struct nsStyleList;
struct nsStyleImage;
struct nsStyleGradientStop;
class nsStyleGradient;
class nsStyleCoord;
struct nsStyleDisplay;
class nsXBLBinding;
#ifdef NIGHTLY_BUILD
const bool GECKO_IS_NIGHTLY = true;
#else
const bool GECKO_IS_NIGHTLY = false;
#endif
#define NS_DECL_THREADSAFE_FFI_REFCOUNTING(class_, name_) \
void Gecko_AddRef##name_##ArbitraryThread(class_* aPtr); \
void Gecko_Release##name_##ArbitraryThread(class_* aPtr);
#define NS_IMPL_THREADSAFE_FFI_REFCOUNTING(class_, name_) \
static_assert(class_::HasThreadSafeRefCnt::value, \
"NS_DECL_THREADSAFE_FFI_REFCOUNTING can only be used with " \
"classes that have thread-safe refcounting"); \
void Gecko_AddRef##name_##ArbitraryThread(class_* aPtr) \
{ NS_ADDREF(aPtr); } \
void Gecko_Release##name_##ArbitraryThread(class_* aPtr) \
{ NS_RELEASE(aPtr); }
#define NS_DECL_FFI_REFCOUNTING(class_, name_) \
void Gecko_##name_##_AddRef(class_* aPtr); \
void Gecko_##name_##_Release(class_* aPtr);
#define NS_IMPL_FFI_REFCOUNTING(class_, name_) \
void Gecko_##name_##_AddRef(class_* aPtr) \
{ MOZ_ASSERT(NS_IsMainThread()); NS_ADDREF(aPtr); } \
void Gecko_##name_##_Release(class_* aPtr) \
{ MOZ_ASSERT(NS_IsMainThread()); NS_RELEASE(aPtr); }
#define DEFINE_ARRAY_TYPE_FOR(type_) \
struct nsTArrayBorrowed_##type_ { \
nsTArray<type_>* mArray; \
MOZ_IMPLICIT nsTArrayBorrowed_##type_(nsTArray<type_>* aArray) \
: mArray(aArray) {} \
}
DEFINE_ARRAY_TYPE_FOR(uintptr_t);
#undef DEFINE_ARRAY_TYPE_FOR
extern "C" {
class ServoBundledURI
{
public:
// NOTE(emilio): Not calling IntoCssUrl or IntoCssImage will cause to leak the
// string, so don't do that :)
already_AddRefed<mozilla::css::URLValue> IntoCssUrl();
already_AddRefed<mozilla::css::ImageValue> IntoCssImage(mozilla::CORSMode);
mozilla::ServoRawOffsetArc<RustString> mURLString;
mozilla::URLExtraData* mExtraData;
};
struct FontSizePrefs
{
void CopyFrom(const mozilla::LangGroupFontPrefs&);
nscoord mDefaultVariableSize;
nscoord mDefaultFixedSize;
nscoord mDefaultSerifSize;
nscoord mDefaultSansSerifSize;
nscoord mDefaultMonospaceSize;
nscoord mDefaultCursiveSize;
nscoord mDefaultFantasySize;
};
struct MediumFeaturesChangedResult {
bool mAffectsDocumentRules;
bool mAffectsNonDocumentRules;
bool mUsesViewportUnits;
};
// Debugging stuff.
void Gecko_Element_DebugListAttributes(RawGeckoElementBorrowed, nsCString*);
void Gecko_Snapshot_DebugListAttributes(const ServoElementSnapshot*, nsCString*);
bool Gecko_IsSignificantChild(RawGeckoNodeBorrowed node, bool whitespace_is_significant);
RawGeckoNodeBorrowedOrNull Gecko_GetLastChild(RawGeckoNodeBorrowed node);
RawGeckoNodeBorrowedOrNull Gecko_GetPreviousSibling(RawGeckoNodeBorrowed node);
RawGeckoNodeBorrowedOrNull Gecko_GetFlattenedTreeParentNode(RawGeckoNodeBorrowed node);
RawGeckoElementBorrowedOrNull Gecko_GetBeforeOrAfterPseudo(RawGeckoElementBorrowed element, bool is_before);
nsTArray<nsIContent*>* Gecko_GetAnonymousContentForElement(RawGeckoElementBorrowed element);
const nsTArray<RefPtr<nsINode>>* Gecko_GetAssignedNodes(RawGeckoElementBorrowed element);
void Gecko_DestroyAnonymousContentList(nsTArray<nsIContent*>* anon_content);
void Gecko_ComputedStyle_Init(mozilla::ComputedStyle* context,
RawGeckoPresContextBorrowed pres_context,
ServoComputedDataBorrowed values,
mozilla::CSSPseudoElementType pseudo_type,
nsAtom* pseudo_tag);
void Gecko_ComputedStyle_Destroy(mozilla::ComputedStyle* context);
// By default, Servo walks the DOM by traversing the siblings of the DOM-view
// first child. This generally works, but misses anonymous children, which we
// want to traverse during styling. To support these cases, we create an
// optional stack-allocated iterator in aIterator for nodes that need it.
void Gecko_ConstructStyleChildrenIterator(RawGeckoElementBorrowed aElement,
RawGeckoStyleChildrenIteratorBorrowedMut aIterator);
void Gecko_DestroyStyleChildrenIterator(RawGeckoStyleChildrenIteratorBorrowedMut aIterator);
RawGeckoNodeBorrowedOrNull Gecko_GetNextStyleChild(RawGeckoStyleChildrenIteratorBorrowedMut it);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::css::SheetLoadDataHolder, SheetLoadDataHolder);
void Gecko_StyleSheet_FinishAsyncParse(mozilla::css::SheetLoadDataHolder* data,
RawServoStyleSheetContentsStrong sheet_contents);
mozilla::StyleSheet*
Gecko_LoadStyleSheet(mozilla::css::Loader* loader,
mozilla::StyleSheet* parent,
mozilla::css::SheetLoadData* parent_load_data,
mozilla::css::LoaderReusableStyleSheets* reusable_sheets,
ServoBundledURI url,
RawServoMediaListStrong media_list);
void
Gecko_LoadStyleSheetAsync(mozilla::css::SheetLoadDataHolder* parent_data,
ServoBundledURI url,
RawServoMediaListStrong media_list,
RawServoImportRuleStrong import_rule);
// Selector Matching.
uint64_t Gecko_ElementState(RawGeckoElementBorrowed element);
bool Gecko_IsRootElement(RawGeckoElementBorrowed element);
bool Gecko_MatchLang(RawGeckoElementBorrowed element,
nsAtom* override_lang, bool has_override_lang,
const char16_t* value);
nsAtom* Gecko_GetXMLLangValue(RawGeckoElementBorrowed element);
nsIDocument::DocumentTheme Gecko_GetDocumentLWTheme(const nsIDocument* aDocument);
bool Gecko_IsTableBorderNonzero(RawGeckoElementBorrowed element);
bool Gecko_IsBrowserFrame(RawGeckoElementBorrowed element);
// Attributes.
#define SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS(prefix_, implementor_) \
nsAtom* prefix_##AtomAttrValue(implementor_ element, nsAtom* attribute); \
nsAtom* prefix_##LangValue(implementor_ element); \
bool prefix_##HasAttr(implementor_ element, nsAtom* ns, nsAtom* name); \
bool prefix_##AttrEquals(implementor_ element, nsAtom* ns, nsAtom* name, \
nsAtom* str, bool ignoreCase); \
bool prefix_##AttrDashEquals(implementor_ element, nsAtom* ns, \
nsAtom* name, nsAtom* str, bool ignore_case); \
bool prefix_##AttrIncludes(implementor_ element, nsAtom* ns, \
nsAtom* name, nsAtom* str, bool ignore_case); \
bool prefix_##AttrHasSubstring(implementor_ element, nsAtom* ns, \
nsAtom* name, nsAtom* str, \
bool ignore_case); \
bool prefix_##AttrHasPrefix(implementor_ element, nsAtom* ns, \
nsAtom* name, nsAtom* str, bool ignore_case); \
bool prefix_##AttrHasSuffix(implementor_ element, nsAtom* ns, \
nsAtom* name, nsAtom* str, bool ignore_case); \
uint32_t prefix_##ClassOrClassList(implementor_ element, nsAtom** class_, \
nsAtom*** classList); \
bool prefix_##HasClass(implementor_ element, nsAtom* class_, \
bool ignore_case);
SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS(Gecko_, RawGeckoElementBorrowed)
SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS(Gecko_Snapshot,
const ServoElementSnapshot*)
#undef SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS
// Style attributes.
RawServoDeclarationBlockStrongBorrowedOrNull
Gecko_GetStyleAttrDeclarationBlock(RawGeckoElementBorrowed element);
void Gecko_UnsetDirtyStyleAttr(RawGeckoElementBorrowed element);
RawServoDeclarationBlockStrongBorrowedOrNull
Gecko_GetHTMLPresentationAttrDeclarationBlock(RawGeckoElementBorrowed element);
RawServoDeclarationBlockStrongBorrowedOrNull
Gecko_GetExtraContentStyleDeclarations(RawGeckoElementBorrowed element);
RawServoDeclarationBlockStrongBorrowedOrNull
Gecko_GetUnvisitedLinkAttrDeclarationBlock(RawGeckoElementBorrowed element);
RawServoDeclarationBlockStrongBorrowedOrNull
Gecko_GetVisitedLinkAttrDeclarationBlock(RawGeckoElementBorrowed element);
RawServoDeclarationBlockStrongBorrowedOrNull
Gecko_GetActiveLinkAttrDeclarationBlock(RawGeckoElementBorrowed element);
// Visited handling.
// Returns whether private browsing is enabled for a given element.
bool Gecko_IsPrivateBrowsingEnabled(const nsIDocument* aDoc);
// Animations
bool
Gecko_GetAnimationRule(RawGeckoElementBorrowed aElementOrPseudo,
mozilla::EffectCompositor::CascadeLevel aCascadeLevel,
RawServoAnimationValueMapBorrowedMut aAnimationValues);
bool Gecko_StyleAnimationsEquals(RawGeckoStyleAnimationListBorrowed,
RawGeckoStyleAnimationListBorrowed);
void Gecko_CopyAnimationNames(RawGeckoStyleAnimationListBorrowedMut aDest,
RawGeckoStyleAnimationListBorrowed aSrc);
// This function takes an already addrefed nsAtom
void Gecko_SetAnimationName(mozilla::StyleAnimation* aStyleAnimation,
nsAtom* aAtom);
void Gecko_UpdateAnimations(RawGeckoElementBorrowed aElementOrPseudo,
ComputedStyleBorrowedOrNull aOldComputedValues,
ComputedStyleBorrowedOrNull aComputedValues,
mozilla::UpdateAnimationsTasks aTasks);
size_t Gecko_GetAnimationEffectCount(RawGeckoElementBorrowed aElementOrPseudo);
bool Gecko_ElementHasAnimations(RawGeckoElementBorrowed aElementOrPseudo);
bool Gecko_ElementHasCSSAnimations(RawGeckoElementBorrowed aElementOrPseudo);
bool Gecko_ElementHasCSSTransitions(RawGeckoElementBorrowed aElementOrPseudo);
size_t Gecko_ElementTransitions_Length(RawGeckoElementBorrowed aElementOrPseudo);
nsCSSPropertyID Gecko_ElementTransitions_PropertyAt(
RawGeckoElementBorrowed aElementOrPseudo,
size_t aIndex);
RawServoAnimationValueBorrowedOrNull Gecko_ElementTransitions_EndValueAt(
RawGeckoElementBorrowed aElementOrPseudo,
size_t aIndex);
double Gecko_GetProgressFromComputedTiming(RawGeckoComputedTimingBorrowed aComputedTiming);
double Gecko_GetPositionInSegment(
RawGeckoAnimationPropertySegmentBorrowed aSegment,
double aProgress,
mozilla::ComputedTimingFunction::BeforeFlag aBeforeFlag);
// Get servo's AnimationValue for |aProperty| from the cached base style
// |aBaseStyles|.
// |aBaseStyles| is nsRefPtrHashtable<nsUint32HashKey, RawServoAnimationValue>.
// We use RawServoAnimationValueTableBorrowed to avoid exposing nsRefPtrHashtable in FFI.
RawServoAnimationValueBorrowedOrNull Gecko_AnimationGetBaseStyle(
RawServoAnimationValueTableBorrowed aBaseStyles,
nsCSSPropertyID aProperty);
void Gecko_StyleTransition_SetUnsupportedProperty(
mozilla::StyleTransition* aTransition,
nsAtom* aAtom);
// Atoms.
nsAtom* Gecko_Atomize(const char* aString, uint32_t aLength);
nsAtom* Gecko_Atomize16(const nsAString* aString);
void Gecko_AddRefAtom(nsAtom* aAtom);
void Gecko_ReleaseAtom(nsAtom* aAtom);
// Font style
void Gecko_CopyFontFamilyFrom(nsFont* dst, const nsFont* src);
void Gecko_nsTArray_FontFamilyName_AppendNamed(nsTArray<FontFamilyName>* aNames, nsAtom* aName, bool aQuoted);
void Gecko_nsTArray_FontFamilyName_AppendGeneric(nsTArray<FontFamilyName>* aNames, FontFamilyType aType);
// Returns an already-AddRefed SharedFontList with an empty mNames array.
SharedFontList* Gecko_SharedFontList_Create();
size_t Gecko_SharedFontList_SizeOfIncludingThis(SharedFontList* fontlist);
size_t Gecko_SharedFontList_SizeOfIncludingThisIfUnshared(SharedFontList* fontlist);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::SharedFontList, SharedFontList);
// will not run destructors on dst, give it uninitialized memory
// font_id is LookAndFeel::FontID
void Gecko_nsFont_InitSystem(nsFont* dst, int32_t font_id,
const nsStyleFont* font, RawGeckoPresContextBorrowed pres_context);
void Gecko_nsFont_Destroy(nsFont* dst);
// The gfxFontFeatureValueSet returned from this function has zero reference.
gfxFontFeatureValueSet* Gecko_ConstructFontFeatureValueSet();
nsTArray<unsigned int>* Gecko_AppendFeatureValueHashEntry(
gfxFontFeatureValueSet* value_set, nsAtom* family, uint32_t alternate, nsAtom* name);
void Gecko_nsFont_SetFontFeatureValuesLookup(nsFont* font,
const RawGeckoPresContext* pres_context);
void Gecko_nsFont_ResetFontFeatureValuesLookup(nsFont* font);
// Font variant alternates
void Gecko_ClearAlternateValues(nsFont* font, size_t length);
void Gecko_AppendAlternateValues(nsFont* font, uint32_t alternate_name, nsAtom* atom);
void Gecko_CopyAlternateValuesFrom(nsFont* dest, const nsFont* src);
// Visibility style
void Gecko_SetImageOrientation(nsStyleVisibility* aVisibility,
uint8_t aOrientation,
bool aFlip);
void Gecko_SetImageOrientationAsFromImage(nsStyleVisibility* aVisibility);
void Gecko_CopyImageOrientationFrom(nsStyleVisibility* aDst,
const nsStyleVisibility* aSrc);
// Counter style.
// This function takes an already addrefed nsAtom
void Gecko_SetCounterStyleToName(mozilla::CounterStylePtr* ptr, nsAtom* name,
RawGeckoPresContextBorrowed pres_context);
void Gecko_SetCounterStyleToSymbols(mozilla::CounterStylePtr* ptr,
uint8_t symbols_type,
nsACString const* const* symbols,
uint32_t symbols_count);
void Gecko_SetCounterStyleToString(mozilla::CounterStylePtr* ptr,
const nsACString* symbol);
void Gecko_CopyCounterStyle(mozilla::CounterStylePtr* dst,
const mozilla::CounterStylePtr* src);
nsAtom* Gecko_CounterStyle_GetName(const mozilla::CounterStylePtr* ptr);
const mozilla::AnonymousCounterStyle*
Gecko_CounterStyle_GetAnonymous(const mozilla::CounterStylePtr* ptr);
// background-image style.
void Gecko_SetNullImageValue(nsStyleImage* image);
void Gecko_SetGradientImageValue(nsStyleImage* image, nsStyleGradient* gradient);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::css::ImageValue, ImageValue);
mozilla::css::ImageValue* Gecko_ImageValue_Create(ServoBundledURI aURI);
size_t Gecko_ImageValue_SizeOfIncludingThis(mozilla::css::ImageValue* aImageValue);
void Gecko_SetLayerImageImageValue(nsStyleImage* image,
mozilla::css::ImageValue* aImageValue);
void Gecko_SetImageElement(nsStyleImage* image, nsAtom* atom);
void Gecko_CopyImageValueFrom(nsStyleImage* image, const nsStyleImage* other);
void Gecko_InitializeImageCropRect(nsStyleImage* image);
nsStyleGradient* Gecko_CreateGradient(uint8_t shape,
uint8_t size,
bool repeating,
bool legacy_syntax,
bool moz_legacy_syntax,
uint32_t stops);
const nsStyleImageRequest* Gecko_GetImageRequest(const nsStyleImage* image);
nsAtom* Gecko_GetImageElement(const nsStyleImage* image);
const nsStyleGradient* Gecko_GetGradientImageValue(const nsStyleImage* image);
// list-style-image style.
void Gecko_SetListStyleImageNone(nsStyleList* style_struct);
void Gecko_SetListStyleImageImageValue(nsStyleList* style_struct,
mozilla::css::ImageValue* aImageValue);
void Gecko_CopyListStyleImageFrom(nsStyleList* dest, const nsStyleList* src);
// cursor style.
void Gecko_SetCursorArrayLength(nsStyleUserInterface* ui, size_t len);
void Gecko_SetCursorImageValue(nsCursorImage* aCursor,
mozilla::css::ImageValue* aImageValue);
void Gecko_CopyCursorArrayFrom(nsStyleUserInterface* dest,
const nsStyleUserInterface* src);
void Gecko_SetContentDataImageValue(nsStyleContentData* aList,
mozilla::css::ImageValue* aImageValue);
nsStyleContentData::CounterFunction* Gecko_SetCounterFunction(
nsStyleContentData* content_data, mozilla::StyleContentType);
// Dirtiness tracking.
void Gecko_SetNodeFlags(RawGeckoNodeBorrowed node, uint32_t flags);
void Gecko_UnsetNodeFlags(RawGeckoNodeBorrowed node, uint32_t flags);
void Gecko_NoteDirtyElement(RawGeckoElementBorrowed element);
void Gecko_NoteDirtySubtreeForInvalidation(RawGeckoElementBorrowed element);
void Gecko_NoteAnimationOnlyDirtyElement(RawGeckoElementBorrowed element);
bool Gecko_AnimationNameMayBeReferencedFromStyle(
RawGeckoPresContextBorrowed pres_context,
nsAtom* name);
// Incremental restyle.
mozilla::CSSPseudoElementType Gecko_GetImplementedPseudo(RawGeckoElementBorrowed element);
// We'd like to return `nsChangeHint` here, but bindgen bitfield enums don't
// work as return values with the Linux 32-bit ABI at the moment because
// they wrap the value in a struct.
uint32_t Gecko_CalcStyleDifference(ComputedStyleBorrowed old_style,
ComputedStyleBorrowed new_style,
bool* any_style_struct_changed,
bool* reset_only_changed);
// Get an element snapshot for a given element from the table.
const ServoElementSnapshot*
Gecko_GetElementSnapshot(const mozilla::ServoElementSnapshotTable* table,
RawGeckoElementBorrowed element);
// Have we seen this pointer before?
bool
Gecko_HaveSeenPtr(mozilla::SeenPtrs* table, const void* ptr);
// `array` must be an nsTArray
// If changing this signature, please update the
// friend function declaration in nsTArray.h
void Gecko_EnsureTArrayCapacity(void* array, size_t capacity, size_t elem_size);
// Same here, `array` must be an nsTArray<T>, for some T.
//
// Important note: Only valid for POD types, since destructors won't be run
// otherwise. This is ensured with rust traits for the relevant structs.
void Gecko_ClearPODTArray(void* array, size_t elem_size, size_t elem_align);
void Gecko_ResizeTArrayForStrings(nsTArray<nsString>* array, uint32_t length);
void Gecko_SetStyleGridTemplate(mozilla::UniquePtr<nsStyleGridTemplate>* grid_template,
nsStyleGridTemplate* value);
nsStyleGridTemplate* Gecko_CreateStyleGridTemplate(uint32_t track_sizes,
uint32_t name_size);
void Gecko_CopyStyleGridTemplateValues(mozilla::UniquePtr<nsStyleGridTemplate>* grid_template,
const nsStyleGridTemplate* other);
mozilla::css::GridTemplateAreasValue* Gecko_NewGridTemplateAreasValue(uint32_t areas,
uint32_t templates,
uint32_t columns);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::css::GridTemplateAreasValue, GridTemplateAreasValue);
// Clear the mContents, mCounterIncrements, or mCounterResets field in nsStyleContent. This is
// needed to run the destructors, otherwise we'd leak the images, strings, and whatnot.
void Gecko_ClearAndResizeStyleContents(nsStyleContent* content,
uint32_t how_many);
void Gecko_ClearAndResizeCounterIncrements(nsStyleContent* content,
uint32_t how_many);
void Gecko_ClearAndResizeCounterResets(nsStyleContent* content,
uint32_t how_many);
void Gecko_CopyStyleContentsFrom(nsStyleContent* content, const nsStyleContent* other);
void Gecko_CopyCounterResetsFrom(nsStyleContent* content, const nsStyleContent* other);
void Gecko_CopyCounterIncrementsFrom(nsStyleContent* content, const nsStyleContent* other);
void Gecko_EnsureImageLayersLength(nsStyleImageLayers* layers, size_t len,
nsStyleImageLayers::LayerType layer_type);
void Gecko_EnsureStyleAnimationArrayLength(void* array, size_t len);
void Gecko_EnsureStyleTransitionArrayLength(void* array, size_t len);
void Gecko_ClearWillChange(nsStyleDisplay* display, size_t length);
void Gecko_AppendWillChange(nsStyleDisplay* display, nsAtom* atom);
void Gecko_CopyWillChangeFrom(nsStyleDisplay* dest, nsStyleDisplay* src);
// Searches from the beginning of |keyframes| for a Keyframe object with the
// specified offset and timing function. If none is found, a new Keyframe object
// with the specified |offset| and |timingFunction| will be prepended to
// |keyframes|.
//
// @param keyframes An array of Keyframe objects, sorted by offset.
// The first Keyframe in the array, if any, MUST have an
// offset greater than or equal to |offset|.
// @param offset The offset to search for, or, if no suitable Keyframe is
// found, the offset to use for the created Keyframe.
// Must be a floating point number in the range [0.0, 1.0].
// @param timingFunction The timing function to match, or, if no suitable
// Keyframe is found, to set on the created Keyframe.
//
// @returns The matching or created Keyframe.
mozilla::Keyframe* Gecko_GetOrCreateKeyframeAtStart(
RawGeckoKeyframeListBorrowedMut keyframes,
float offset,
const nsTimingFunction* timingFunction);
// As with Gecko_GetOrCreateKeyframeAtStart except that this method will search
// from the beginning of |keyframes| for a Keyframe with matching timing
// function and an offset of 0.0.
// Furthermore, if a matching Keyframe is not found, a new Keyframe will be
// inserted after the *last* Keyframe in |keyframes| with offset 0.0.
mozilla::Keyframe* Gecko_GetOrCreateInitialKeyframe(
RawGeckoKeyframeListBorrowedMut keyframes,
const nsTimingFunction* timingFunction);
// As with Gecko_GetOrCreateKeyframeAtStart except that this method will search
// from the *end* of |keyframes| for a Keyframe with matching timing function
// and an offset of 1.0. If a matching Keyframe is not found, a new Keyframe
// will be appended to the end of |keyframes|.
mozilla::Keyframe* Gecko_GetOrCreateFinalKeyframe(
RawGeckoKeyframeListBorrowedMut keyframes,
const nsTimingFunction* timingFunction);
// Appends and returns a new PropertyValuePair to |aProperties| initialized with
// its mProperty member set to |aProperty| and all other members initialized to
// their default values.
mozilla::PropertyValuePair* Gecko_AppendPropertyValuePair(
RawGeckoPropertyValuePairListBorrowedMut aProperties,
nsCSSPropertyID aProperty);
// Clean up pointer-based coordinates
void Gecko_ResetStyleCoord(nsStyleUnit* unit, nsStyleUnion* value);
// Set an nsStyleCoord to a computed `calc()` value
void Gecko_SetStyleCoordCalcValue(nsStyleUnit* unit, nsStyleUnion* value, nsStyleCoord::CalcValue calc);
void Gecko_CopyShapeSourceFrom(mozilla::StyleShapeSource* dst, const mozilla::StyleShapeSource* src);
void Gecko_DestroyShapeSource(mozilla::StyleShapeSource* shape);
void Gecko_NewBasicShape(mozilla::StyleShapeSource* shape,
mozilla::StyleBasicShapeType type);
void Gecko_NewShapeImage(mozilla::StyleShapeSource* shape);
void Gecko_StyleShapeSource_SetURLValue(mozilla::StyleShapeSource* shape, mozilla::css::URLValue* uri);
void Gecko_ResetFilters(nsStyleEffects* effects, size_t new_len);
void Gecko_CopyFiltersFrom(nsStyleEffects* aSrc, nsStyleEffects* aDest);
void Gecko_nsStyleFilter_SetURLValue(nsStyleFilter* effects, mozilla::css::URLValue* uri);
void Gecko_nsStyleSVGPaint_CopyFrom(nsStyleSVGPaint* dest, const nsStyleSVGPaint* src);
void Gecko_nsStyleSVGPaint_SetURLValue(nsStyleSVGPaint* paint, mozilla::css::URLValue* uri);
void Gecko_nsStyleSVGPaint_Reset(nsStyleSVGPaint* paint);
void Gecko_nsStyleSVG_SetDashArrayLength(nsStyleSVG* svg, uint32_t len);
void Gecko_nsStyleSVG_CopyDashArray(nsStyleSVG* dst, const nsStyleSVG* src);
void Gecko_nsStyleSVG_SetContextPropertiesLength(nsStyleSVG* svg, uint32_t len);
void Gecko_nsStyleSVG_CopyContextProperties(nsStyleSVG* dst, const nsStyleSVG* src);
mozilla::css::URLValue* Gecko_NewURLValue(ServoBundledURI uri);
size_t Gecko_URLValue_SizeOfIncludingThis(mozilla::css::URLValue* url);
void Gecko_GetComputedURLSpec(const mozilla::css::URLValueData* url, nsCString* spec);
void Gecko_nsIURI_Debug(nsIURI*, nsCString* spec);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::css::URLValue, CSSURLValue);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(RawGeckoURLExtraData, URLExtraData);
void Gecko_FillAllImageLayers(nsStyleImageLayers* layers, uint32_t max_len);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsStyleCoord::Calc, Calc);
nsCSSShadowArray* Gecko_NewCSSShadowArray(uint32_t len);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsCSSShadowArray, CSSShadowArray);
nsStyleQuoteValues* Gecko_NewStyleQuoteValues(uint32_t len);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsStyleQuoteValues, QuoteValues);
nsCSSValueSharedList* Gecko_NewCSSValueSharedList(uint32_t len);
nsCSSValueSharedList* Gecko_NewNoneTransform();
// Getter for nsCSSValue
nsCSSValueBorrowedMut Gecko_CSSValue_GetArrayItem(nsCSSValueBorrowedMut css_value, int32_t index);
// const version of the above function.
nsCSSValueBorrowed Gecko_CSSValue_GetArrayItemConst(nsCSSValueBorrowed css_value, int32_t index);
nsCSSKeyword Gecko_CSSValue_GetKeyword(nsCSSValueBorrowed aCSSValue);
float Gecko_CSSValue_GetNumber(nsCSSValueBorrowed css_value);
float Gecko_CSSValue_GetPercentage(nsCSSValueBorrowed css_value);
nsStyleCoord::CalcValue Gecko_CSSValue_GetCalc(nsCSSValueBorrowed aCSSValue);
void Gecko_CSSValue_SetNumber(nsCSSValueBorrowedMut css_value, float number);
void Gecko_CSSValue_SetKeyword(nsCSSValueBorrowedMut css_value, nsCSSKeyword keyword);
void Gecko_CSSValue_SetPercentage(nsCSSValueBorrowedMut css_value, float percent);
void Gecko_CSSValue_SetPixelLength(nsCSSValueBorrowedMut aCSSValue, float aLen);
void Gecko_CSSValue_SetCalc(nsCSSValueBorrowedMut css_value, nsStyleCoord::CalcValue calc);
void Gecko_CSSValue_SetFontStretch(nsCSSValueBorrowedMut css_value, float stretch);
void Gecko_CSSValue_SetFontSlantStyle(nsCSSValueBorrowedMut css_value, float style);
void Gecko_CSSValue_SetFontWeight(nsCSSValueBorrowedMut css_value, float weight);
void Gecko_CSSValue_SetFunction(nsCSSValueBorrowedMut css_value, int32_t len);
void Gecko_CSSValue_SetString(nsCSSValueBorrowedMut css_value,
const uint8_t* string, uint32_t len, nsCSSUnit unit);
void Gecko_CSSValue_SetStringFromAtom(nsCSSValueBorrowedMut css_value,
nsAtom* atom, nsCSSUnit unit);
// Take an addrefed nsAtom and set it to the nsCSSValue
void Gecko_CSSValue_SetAtomIdent(nsCSSValueBorrowedMut css_value, nsAtom* atom);
void Gecko_CSSValue_SetArray(nsCSSValueBorrowedMut css_value, int32_t len);
void Gecko_CSSValue_SetURL(nsCSSValueBorrowedMut css_value, mozilla::css::URLValue* uri);
void Gecko_CSSValue_SetInt(nsCSSValueBorrowedMut css_value, int32_t integer, nsCSSUnit unit);
void Gecko_CSSValue_SetFloat(nsCSSValueBorrowedMut css_value, float value, nsCSSUnit unit);
void Gecko_CSSValue_SetPair(nsCSSValueBorrowedMut css_value,
nsCSSValueBorrowed xvalue, nsCSSValueBorrowed yvalue);
void Gecko_CSSValue_SetList(nsCSSValueBorrowedMut css_value, uint32_t len);
void Gecko_CSSValue_SetPairList(nsCSSValueBorrowedMut css_value, uint32_t len);
void Gecko_CSSValue_InitSharedList(nsCSSValueBorrowedMut css_value, uint32_t len);
void Gecko_CSSValue_Drop(nsCSSValueBorrowedMut css_value);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsCSSValueSharedList, CSSValueSharedList);
float Gecko_FontStretch_ToFloat(mozilla::FontStretch aStretch);
void Gecko_FontStretch_SetFloat(mozilla::FontStretch* aStretch,
float aFloatValue);
float Gecko_FontSlantStyle_ToFloat(mozilla::FontSlantStyle aStyle);
void Gecko_FontSlantStyle_SetNormal(mozilla::FontSlantStyle*);
void Gecko_FontSlantStyle_SetItalic(mozilla::FontSlantStyle*);
void Gecko_FontSlantStyle_SetOblique(mozilla::FontSlantStyle*, float angle_degrees);
void Gecko_FontSlantStyle_Get(mozilla::FontSlantStyle,
bool* normal,
bool* italic,
float* oblique_angle);
float Gecko_FontWeight_ToFloat(mozilla::FontWeight aWeight);
void Gecko_FontWeight_SetFloat(mozilla::FontWeight* aWeight,
float aFloatValue);
void Gecko_nsStyleFont_SetLang(nsStyleFont* font, nsAtom* atom);
void Gecko_nsStyleFont_CopyLangFrom(nsStyleFont* aFont, const nsStyleFont* aSource);
void Gecko_nsStyleFont_FixupNoneGeneric(nsStyleFont* font,
RawGeckoPresContextBorrowed pres_context);
void Gecko_nsStyleFont_PrefillDefaultForGeneric(nsStyleFont* font,
RawGeckoPresContextBorrowed pres_context,
uint8_t generic_id);
void Gecko_nsStyleFont_FixupMinFontSize(nsStyleFont* font,
RawGeckoPresContextBorrowed pres_context);
FontSizePrefs Gecko_GetBaseSize(nsAtom* lang);
// XBL related functions.
RawGeckoElementBorrowedOrNull Gecko_GetBindingParent(RawGeckoElementBorrowed aElement);
RawServoAuthorStylesBorrowedOrNull Gecko_XBLBinding_GetRawServoStyles(RawGeckoXBLBindingBorrowed aXBLBinding);
bool Gecko_XBLBinding_InheritsStyle(RawGeckoXBLBindingBorrowed aXBLBinding);
struct GeckoFontMetrics
{
nscoord mChSize;
nscoord mXSize;
};
GeckoFontMetrics Gecko_GetFontMetrics(RawGeckoPresContextBorrowed pres_context,
bool is_vertical,
const nsStyleFont* font,
nscoord font_size,
bool use_user_font_set);
int32_t Gecko_GetAppUnitsPerPhysicalInch(RawGeckoPresContextBorrowed pres_context);
void InitializeServo();
void ShutdownServo();
void AssertIsMainThreadOrServoLangFontPrefsCacheLocked();
mozilla::StyleSheet* Gecko_StyleSheet_Clone(
const mozilla::StyleSheet* aSheet,
const mozilla::StyleSheet* aNewParentSheet);
void Gecko_StyleSheet_AddRef(const mozilla::StyleSheet* aSheet);
void Gecko_StyleSheet_Release(const mozilla::StyleSheet* aSheet);
nsCSSKeyword Gecko_LookupCSSKeyword(const uint8_t* string, uint32_t len);
const char* Gecko_CSSKeywordString(nsCSSKeyword keyword, uint32_t* len);
bool Gecko_IsDocumentBody(RawGeckoElementBorrowed element);
// We use an int32_t here instead of a LookAndFeel::ColorID
// because forward-declaring a nested enum/struct is impossible
nscolor Gecko_GetLookAndFeelSystemColor(int32_t color_id,
RawGeckoPresContextBorrowed pres_context);
void Gecko_AddPropertyToSet(nsCSSPropertyIDSetBorrowedMut, nsCSSPropertyID);
// Style-struct management.
#define STYLE_STRUCT(name) \
void Gecko_Construct_Default_nsStyle##name( \
nsStyle##name* ptr, \
RawGeckoPresContextBorrowed pres_context); \
void Gecko_CopyConstruct_nsStyle##name(nsStyle##name* ptr, \
const nsStyle##name* other); \
void Gecko_Destroy_nsStyle##name(nsStyle##name* ptr);
#include "nsStyleStructList.h"
#undef STYLE_STRUCT
void Gecko_RegisterProfilerThread(const char* name);
void Gecko_UnregisterProfilerThread();
bool Gecko_DocumentRule_UseForPresentation(RawGeckoPresContextBorrowed,
const nsACString* aPattern,
mozilla::css::DocumentMatchingFunction);
// Allocator hinting.
void Gecko_SetJemallocThreadLocalArena(bool enabled);
void Gecko_AddBufferToCrashReport(const void* addr, size_t len);
void Gecko_AnnotateCrashReport(const char* key_str, const char* value_str);
// Pseudo-element flags.
#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
const uint32_t SERVO_CSS_PSEUDO_ELEMENT_FLAGS_##name_ = flags_;
#include "nsCSSPseudoElementList.h"
#undef CSS_PSEUDO_ELEMENT
#define SERVO_BINDING_FUNC(name_, return_, ...) return_ name_(__VA_ARGS__);
#include "mozilla/ServoBindingList.h"
#undef SERVO_BINDING_FUNC
bool Gecko_ErrorReportingEnabled(const mozilla::StyleSheet* sheet,
const mozilla::css::Loader* loader);
void Gecko_ReportUnexpectedCSSError(const mozilla::StyleSheet* sheet,
const mozilla::css::Loader* loader,
nsIURI* uri,
const char* message,
const char* param,
uint32_t paramLen,
const char* prefix,
const char* prefixParam,
uint32_t prefixParamLen,
const char* suffix,
const char* source,
uint32_t sourceLen,
uint32_t lineNumber,
uint32_t colNumber);
// DOM APIs.
void Gecko_ContentList_AppendAll(nsSimpleContentList* aContentList,
const RawGeckoElement** aElements,
size_t aLength);
// FIXME(emilio): These two below should be a single function that takes a
// `const DocumentOrShadowRoot*`, but that doesn't make MSVC builds happy for a
// reason I haven't really dug into.
const nsTArray<mozilla::dom::Element*>* Gecko_Document_GetElementsWithId(
const nsIDocument* aDocument,
nsAtom* aId);
const nsTArray<mozilla::dom::Element*>* Gecko_ShadowRoot_GetElementsWithId(
const mozilla::dom::ShadowRoot* aDocument,
nsAtom* aId);
// Check the value of the given bool preference. The pref name needs to
// be null-terminated.
bool Gecko_GetBoolPrefValue(const char* pref_name);
// Returns true if we're currently performing the servo traversal.
bool Gecko_IsInServoTraversal();
// Returns true if we're currently on the main thread.
bool Gecko_IsMainThread();
} // extern "C"
#endif // mozilla_ServoBindings_h