/* -*- 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 #include "mozilla/ServoTypes.h" #include "mozilla/ServoBindingTypes.h" #include "mozilla/ServoElementSnapshot.h" #include "mozilla/css/SheetParsingMode.h" #include "mozilla/css/URLMatchingFunction.h" #include "mozilla/EffectCompositor.h" #include "mozilla/ComputedTimingFunction.h" #include "nsChangeHint.h" #include "nsCSSPseudoClasses.h" #include "nsStyleStruct.h" /* * API for Servo to access Gecko data structures. This file must compile as valid * C code in order for the binding generator to parse it. * * 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 nsIAtom; class nsIPrincipal; class nsIURI; struct nsFont; namespace mozilla { class FontFamilyList; enum FontFamilyType : uint32_t; enum class CSSPseudoElementType : uint8_t; struct Keyframe; enum Side; struct StyleTransition; namespace css { struct URLValue; struct ImageValue; }; namespace dom { enum class IterationCompositeOperation : uint8_t; }; enum class UpdateAnimationsTasks : uint8_t; struct LangGroupFontPrefs; class ServoStyleSheet; class ServoElementSnapshotTable; } using mozilla::FontFamilyList; using mozilla::FontFamilyType; using mozilla::ServoElementSnapshot; class nsCSSCounterStyleRule; class nsCSSFontFaceRule; struct nsMediaFeature; struct nsStyleList; struct nsStyleImage; struct nsStyleGradientStop; class nsStyleGradient; class nsStyleCoord; struct nsStyleDisplay; #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* mArray; \ MOZ_IMPLICIT nsTArrayBorrowed_##type_(nsTArray* aArray) \ : mArray(aArray) {} \ } DEFINE_ARRAY_TYPE_FOR(uintptr_t); #undef DEFINE_ARRAY_TYPE_FOR extern "C" { class ServoBundledURI { public: already_AddRefed IntoCssUrl(); const uint8_t* mURLString; uint32_t mURLStringLength; mozilla::URLExtraData* mExtraData; }; struct FontSizePrefs { void CopyFrom(const mozilla::LangGroupFontPrefs&); nscoord mDefaultVariableSize; nscoord mDefaultFixedSize; nscoord mDefaultSerifSize; nscoord mDefaultSansSerifSize; nscoord mDefaultMonospaceSize; nscoord mDefaultCursiveSize; nscoord mDefaultFantasySize; }; // DOM Traversal. uint32_t Gecko_ChildrenCount(RawGeckoNodeBorrowed node); bool Gecko_NodeIsElement(RawGeckoNodeBorrowed node); bool Gecko_IsInDocument(RawGeckoNodeBorrowed node); bool Gecko_FlattenedTreeParentIsParent(RawGeckoNodeBorrowed node); bool Gecko_IsSignificantChild(RawGeckoNodeBorrowed node, bool text_is_significant, bool whitespace_is_significant); RawGeckoNodeBorrowedOrNull Gecko_GetParentNode(RawGeckoNodeBorrowed node); RawGeckoNodeBorrowedOrNull Gecko_GetFirstChild(RawGeckoNodeBorrowed node); RawGeckoNodeBorrowedOrNull Gecko_GetLastChild(RawGeckoNodeBorrowed node); RawGeckoNodeBorrowedOrNull Gecko_GetPrevSibling(RawGeckoNodeBorrowed node); RawGeckoNodeBorrowedOrNull Gecko_GetNextSibling(RawGeckoNodeBorrowed node); RawGeckoElementBorrowedOrNull Gecko_GetFirstChildElement(RawGeckoElementBorrowed element); RawGeckoElementBorrowedOrNull Gecko_GetLastChildElement(RawGeckoElementBorrowed element); RawGeckoElementBorrowedOrNull Gecko_GetPrevSiblingElement(RawGeckoElementBorrowed element); RawGeckoElementBorrowedOrNull Gecko_GetNextSiblingElement(RawGeckoElementBorrowed element); RawGeckoElementBorrowedOrNull Gecko_GetDocumentElement(RawGeckoDocumentBorrowed document); void Gecko_LoadStyleSheet(mozilla::css::Loader* loader, mozilla::ServoStyleSheet* parent, RawServoStyleSheetBorrowed child_sheet, RawGeckoURLExtraData* base_url_data, const uint8_t* url_bytes, uint32_t url_length, RawServoMediaListStrong media_list); // 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 heap-allocated iterator for nodes that need it. If the creation // method returns null, Servo falls back to the aforementioned simpler (and // faster) sibling traversal. StyleChildrenIteratorOwnedOrNull Gecko_MaybeCreateStyleChildrenIterator(RawGeckoNodeBorrowed node); void Gecko_DropStyleChildrenIterator(StyleChildrenIteratorOwned it); RawGeckoNodeBorrowedOrNull Gecko_GetNextStyleChild(StyleChildrenIteratorBorrowedMut it); // Selector Matching. uint64_t Gecko_ElementState(RawGeckoElementBorrowed element); bool Gecko_IsTextNode(RawGeckoNodeBorrowed node); bool Gecko_IsRootElement(RawGeckoElementBorrowed element); bool Gecko_MatchesElement(mozilla::CSSPseudoClassType type, RawGeckoElementBorrowed element); nsIAtom* Gecko_LocalName(RawGeckoElementBorrowed element); nsIAtom* Gecko_Namespace(RawGeckoElementBorrowed element); nsIAtom* Gecko_GetElementId(RawGeckoElementBorrowed element); nsIAtom* Gecko_GetXMLLangValue(RawGeckoElementBorrowed element); // Attributes. #define SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS(prefix_, implementor_) \ nsIAtom* prefix_##AtomAttrValue(implementor_ element, nsIAtom* attribute); \ bool prefix_##HasAttr(implementor_ element, nsIAtom* ns, nsIAtom* name); \ bool prefix_##AttrEquals(implementor_ element, nsIAtom* ns, nsIAtom* name, \ nsIAtom* str, bool ignoreCase); \ bool prefix_##AttrDashEquals(implementor_ element, nsIAtom* ns, \ nsIAtom* name, nsIAtom* str); \ bool prefix_##AttrIncludes(implementor_ element, nsIAtom* ns, \ nsIAtom* name, nsIAtom* str); \ bool prefix_##AttrHasSubstring(implementor_ element, nsIAtom* ns, \ nsIAtom* name, nsIAtom* str); \ bool prefix_##AttrHasPrefix(implementor_ element, nsIAtom* ns, \ nsIAtom* name, nsIAtom* str); \ bool prefix_##AttrHasSuffix(implementor_ element, nsIAtom* ns, \ nsIAtom* name, nsIAtom* str); \ uint32_t prefix_##ClassOrClassList(implementor_ element, nsIAtom** class_, \ nsIAtom*** classList); 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); RawServoDeclarationBlockStrongBorrowedOrNull Gecko_GetHTMLPresentationAttrDeclarationBlock(RawGeckoElementBorrowed element); RawServoDeclarationBlockStrongBorrowedOrNull Gecko_GetExtraContentStyleDeclarations(RawGeckoElementBorrowed element); // Animations bool Gecko_GetAnimationRule(RawGeckoElementBorrowed aElementOrPseudo, mozilla::EffectCompositor::CascadeLevel aCascadeLevel, RawServoAnimationValueMapBorrowedMut aAnimationValues); RawServoDeclarationBlockStrongBorrowedOrNull Gecko_GetSMILOverrideDeclarationBlock(RawGeckoElementBorrowed element); bool Gecko_StyleAnimationsEquals(RawGeckoStyleAnimationListBorrowed, RawGeckoStyleAnimationListBorrowed); void Gecko_UpdateAnimations(RawGeckoElementBorrowed aElementOrPseudo, ServoComputedValuesBorrowedOrNull aOldComputedValues, ServoComputedValuesBorrowedOrNull aComputedValues, ServoComputedValuesBorrowedOrNull aParentComputedValues, mozilla::UpdateAnimationsTasks aTasks); 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. // We use void* to avoid exposing nsRefPtrHashtable in FFI. RawServoAnimationValueBorrowedOrNull Gecko_AnimationGetBaseStyle( void* aBaseStyles, nsCSSPropertyID aProperty); void Gecko_StyleTransition_SetUnsupportedProperty( mozilla::StyleTransition* aTransition, nsIAtom* aAtom); // Atoms. nsIAtom* Gecko_Atomize(const char* aString, uint32_t aLength); nsIAtom* Gecko_Atomize16(const nsAString* aString); void Gecko_AddRefAtom(nsIAtom* aAtom); void Gecko_ReleaseAtom(nsIAtom* aAtom); const uint16_t* Gecko_GetAtomAsUTF16(nsIAtom* aAtom, uint32_t* aLength); bool Gecko_AtomEqualsUTF8(nsIAtom* aAtom, const char* aString, uint32_t aLength); bool Gecko_AtomEqualsUTF8IgnoreCase(nsIAtom* aAtom, const char* aString, uint32_t aLength); // Border style void Gecko_EnsureMozBorderColors(nsStyleBorder* aBorder); void Gecko_ClearMozBorderColors(nsStyleBorder* aBorder, mozilla::Side aSide); void Gecko_AppendMozBorderColors(nsStyleBorder* aBorder, mozilla::Side aSide, nscolor aColor); void Gecko_CopyMozBorderColors(nsStyleBorder* aDest, const nsStyleBorder* aSrc, mozilla::Side aSide); // Font style void Gecko_FontFamilyList_Clear(FontFamilyList* aList); void Gecko_FontFamilyList_AppendNamed(FontFamilyList* aList, nsIAtom* aName, bool aQuoted); void Gecko_FontFamilyList_AppendGeneric(FontFamilyList* list, FontFamilyType familyType); void Gecko_CopyFontFamilyFrom(nsFont* dst, const nsFont* src); // 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); // Visibility style void Gecko_SetImageOrientation(nsStyleVisibility* aVisibility, double aRadians, bool aFlip); void Gecko_SetImageOrientationAsFromImage(nsStyleVisibility* aVisibility); void Gecko_CopyImageOrientationFrom(nsStyleVisibility* aDst, const nsStyleVisibility* aSrc); // Counter style. // This function takes an already addrefed nsIAtom void Gecko_SetCounterStyleToName(mozilla::CounterStylePtr* ptr, nsIAtom* name); void Gecko_CopyCounterStyle(mozilla::CounterStylePtr* dst, const mozilla::CounterStylePtr* src); // 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); void Gecko_SetLayerImageImageValue(nsStyleImage* image, mozilla::css::ImageValue* aImageValue); void Gecko_SetImageElement(nsStyleImage* image, nsIAtom* 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, uint32_t stops); // 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, nsStyleContentType type); // Dirtiness tracking. uint32_t Gecko_GetNodeFlags(RawGeckoNodeBorrowed node); void Gecko_SetNodeFlags(RawGeckoNodeBorrowed node, uint32_t flags); void Gecko_UnsetNodeFlags(RawGeckoNodeBorrowed node, uint32_t flags); void Gecko_SetOwnerDocumentNeedsStyleFlush(RawGeckoElementBorrowed element); // Incremental restyle. // Also, we might want a ComputedValues to ComputedValues API for animations? // Not if we do them in Gecko... nsStyleContext* Gecko_GetStyleContext(RawGeckoElementBorrowed element, nsIAtom* aPseudoTagOrNull); mozilla::CSSPseudoElementType Gecko_GetImplementedPseudo(RawGeckoElementBorrowed element); nsChangeHint Gecko_CalcStyleDifference(nsStyleContext* oldstyle, ServoComputedValuesBorrowed newstyle, bool* any_style_changed); nsChangeHint Gecko_HintsHandledForDescendants(nsChangeHint aHint); // Get an element snapshot for a given element from the table. const ServoElementSnapshot* Gecko_GetElementSnapshot(const mozilla::ServoElementSnapshotTable* table, RawGeckoElementBorrowed element); void Gecko_DropElementSnapshot(ServoElementSnapshotOwned snapshot); // `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, 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* array, uint32_t length); void Gecko_SetStyleGridTemplateArrayLengths(nsStyleGridTemplate* grid_template, uint32_t track_sizes); void Gecko_CopyStyleGridTemplateValues(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, nsIAtom* 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); // 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); mozilla::StyleBasicShape* Gecko_NewBasicShape(mozilla::StyleBasicShapeType type); void Gecko_StyleShapeSource_SetURLValue(mozilla::StyleShapeSource* shape, ServoBundledURI uri); void Gecko_ResetFilters(nsStyleEffects* effects, size_t new_len); void Gecko_CopyFiltersFrom(nsStyleEffects* aSrc, nsStyleEffects* aDest); void Gecko_nsStyleFilter_SetURLValue(nsStyleFilter* effects, ServoBundledURI uri); void Gecko_nsStyleSVGPaint_CopyFrom(nsStyleSVGPaint* dest, const nsStyleSVGPaint* src); void Gecko_nsStyleSVGPaint_SetURLValue(nsStyleSVGPaint* paint, ServoBundledURI 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); mozilla::css::URLValue* Gecko_NewURLValue(ServoBundledURI uri); NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::css::URLValue, CSSURLValue); NS_DECL_THREADSAFE_FFI_REFCOUNTING(RawGeckoURLExtraData, URLExtraData); void Gecko_FillAllBackgroundLists(nsStyleImageLayers* layers, uint32_t max_len); void Gecko_FillAllMaskLists(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); nscoord Gecko_CSSValue_GetAbsoluteLength(nsCSSValueBorrowed css_value); 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_SetAbsoluteLength(nsCSSValueBorrowedMut css_value, nscoord len); 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_SetCalc(nsCSSValueBorrowedMut css_value, nsStyleCoord::CalcValue calc); 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, nsIAtom* atom, nsCSSUnit unit); // Take an addrefed nsIAtom and set it to the nsCSSValue void Gecko_CSSValue_SetAtomIdent(nsCSSValueBorrowedMut css_value, nsIAtom* atom); void Gecko_CSSValue_SetArray(nsCSSValueBorrowedMut css_value, int32_t len); void Gecko_CSSValue_SetURL(nsCSSValueBorrowedMut css_value, ServoBundledURI uri); void Gecko_CSSValue_SetInt(nsCSSValueBorrowedMut css_value, int32_t integer, 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_Drop(nsCSSValueBorrowedMut css_value); NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsCSSValueSharedList, CSSValueSharedList); bool Gecko_PropertyId_IsPrefEnabled(nsCSSPropertyID id); void Gecko_nsStyleFont_SetLang(nsStyleFont* font, nsIAtom* atom); void Gecko_nsStyleFont_CopyLangFrom(nsStyleFont* aFont, const nsStyleFont* aSource); void Gecko_nsStyleFont_FixupNoneGeneric(nsStyleFont* font, RawGeckoPresContextBorrowed pres_context); FontSizePrefs Gecko_GetBaseSize(nsIAtom* lang); 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(); const nsMediaFeature* Gecko_GetMediaFeatures(); nsCSSKeyword Gecko_LookupCSSKeyword(const uint8_t* string, uint32_t len); const char* Gecko_CSSKeywordString(nsCSSKeyword keyword, uint32_t* len); // Font face rule // Creates and returns a new (already-addrefed) nsCSSFontFaceRule object. nsCSSFontFaceRule* Gecko_CSSFontFaceRule_Create(uint32_t line, uint32_t column); void Gecko_CSSFontFaceRule_GetCssText(const nsCSSFontFaceRule* rule, nsAString* result); NS_DECL_FFI_REFCOUNTING(nsCSSFontFaceRule, CSSFontFaceRule); // Counter style rule // Creates and returns a new (already-addrefed) nsCSSCounterStyleRule object. nsCSSCounterStyleRule* Gecko_CSSCounterStyle_Create(nsIAtom* name); void Gecko_CSSCounterStyle_GetCssText(const nsCSSCounterStyleRule* rule, nsAString* result); NS_DECL_FFI_REFCOUNTING(nsCSSCounterStyleRule, CSSCounterStyleRule); RawGeckoElementBorrowedOrNull Gecko_GetBody(RawGeckoPresContextBorrowed pres_context); // 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); bool Gecko_MatchStringArgPseudo(RawGeckoElementBorrowed element, mozilla::CSSPseudoClassType type, const char16_t* ident, bool* set_slow_selector); void Gecko_AddPropertyToSet(nsCSSPropertyIDSetBorrowedMut, nsCSSPropertyID); // Style-struct management. #define STYLE_STRUCT(name, checkdata_cb) \ 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_Construct_nsStyleVariables(nsStyleVariables* ptr); void Gecko_RegisterProfilerThread(const char* name); void Gecko_UnregisterProfilerThread(); bool Gecko_DocumentRule_UseForPresentation(RawGeckoPresContextBorrowed, const nsACString* aPattern, mozilla::css::URLMatchingFunction aURLMatchingFunction); // Allocator hinting. void Gecko_SetJemallocThreadLocalArena(bool enabled); // 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 } // extern "C" #endif // mozilla_ServoBindings_h