gecko-dev/layout/style/GeckoBindings.h
Emilio Cobos Álvarez b9b9e38dd9 Bug 1646224 - Use mozilla::Length rather than nscoord to store font sizes. r=heycam,jfkthame
This avoids arbitrary precision loss when computing REM units and so on,
which is particularly important if we ever change the base of our app
units (but useful regardless).

Differential Revision: https://phabricator.services.mozilla.com/D79928
2020-06-22 09:45:40 +00:00

646 lines
26 KiB
C++

/* -*- 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/. */
/* FFI functions for Servo to call into Gecko */
#ifndef mozilla_GeckoBindings_h
#define mozilla_GeckoBindings_h
#include <stdint.h>
#include "mozilla/ServoTypes.h"
#include "mozilla/ServoBindingTypes.h"
#include "mozilla/css/DocumentMatchingFunction.h"
#include "mozilla/css/SheetLoadData.h"
#include "mozilla/EffectCompositor.h"
#include "mozilla/ComputedTimingFunction.h"
#include "mozilla/PreferenceSheet.h"
#include "nsStyleStruct.h"
class nsAtom;
class nsIURI;
class nsSimpleContentList;
struct nsFont;
class ServoComputedData;
namespace mozilla {
class ComputedStyle;
class SeenPtrs;
class ServoElementSnapshot;
class ServoElementSnapshotTable;
class SharedFontList;
class StyleSheet;
enum class PseudoStyleType : uint8_t;
enum class PointerCapabilities : uint8_t;
enum class UpdateAnimationsTasks : uint8_t;
struct FontFamilyName;
struct Keyframe;
namespace css {
class LoaderReusableStyleSheets;
}
} // namespace mozilla
#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); }
extern "C" {
NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsIURI, nsIURI);
// Debugging stuff.
void Gecko_Element_DebugListAttributes(const mozilla::dom::Element*,
nsCString*);
void Gecko_Snapshot_DebugListAttributes(const mozilla::ServoElementSnapshot*,
nsCString*);
bool Gecko_IsSignificantChild(const nsINode*, bool whitespace_is_significant);
const nsINode* Gecko_GetLastChild(const nsINode*);
const nsINode* Gecko_GetPreviousSibling(const nsINode*);
const nsINode* Gecko_GetFlattenedTreeParentNode(const nsINode*);
const mozilla::dom::Element* Gecko_GetBeforeOrAfterPseudo(
const mozilla::dom::Element*, bool is_before);
const mozilla::dom::Element* Gecko_GetMarkerPseudo(
const mozilla::dom::Element*);
nsTArray<nsIContent*>* Gecko_GetAnonymousContentForElement(
const mozilla::dom::Element*);
void Gecko_DestroyAnonymousContentList(nsTArray<nsIContent*>* anon_content);
const nsTArray<RefPtr<nsINode>>* Gecko_GetAssignedNodes(
const mozilla::dom::Element*);
void Gecko_ComputedStyle_Init(mozilla::ComputedStyle* context,
const ServoComputedData* values,
mozilla::PseudoStyleType pseudo_type);
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(const mozilla::dom::Element*,
mozilla::dom::StyleChildrenIterator*);
void Gecko_DestroyStyleChildrenIterator(mozilla::dom::StyleChildrenIterator*);
const nsINode* Gecko_GetNextStyleChild(mozilla::dom::StyleChildrenIterator*);
nsAtom* Gecko_Element_ImportedPart(const nsAttrValue*, nsAtom*);
nsAtom** Gecko_Element_ExportedParts(const nsAttrValue*, nsAtom*,
size_t* aOutLength);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::css::SheetLoadDataHolder,
SheetLoadDataHolder);
void Gecko_StyleSheet_FinishAsyncParse(
mozilla::css::SheetLoadDataHolder* data,
mozilla::StyleStrong<RawServoStyleSheetContents> sheet_contents,
mozilla::StyleOwnedOrNull<StyleUseCounters> use_counters);
mozilla::StyleSheet* Gecko_LoadStyleSheet(
mozilla::css::Loader* loader, mozilla::StyleSheet* parent,
mozilla::css::SheetLoadData* parent_load_data,
mozilla::css::LoaderReusableStyleSheets* reusable_sheets,
const mozilla::StyleCssUrl* url,
mozilla::StyleStrong<RawServoMediaList> media_list);
void Gecko_LoadStyleSheetAsync(mozilla::css::SheetLoadDataHolder* parent_data,
const mozilla::StyleCssUrl* url,
mozilla::StyleStrong<RawServoMediaList>,
mozilla::StyleStrong<RawServoImportRule>);
// Selector Matching.
uint64_t Gecko_ElementState(const mozilla::dom::Element*);
bool Gecko_IsRootElement(const mozilla::dom::Element*);
bool Gecko_MatchLang(const mozilla::dom::Element*, nsAtom* override_lang,
bool has_override_lang, const char16_t* value);
nsAtom* Gecko_GetXMLLangValue(const mozilla::dom::Element*);
mozilla::dom::Document::DocumentTheme Gecko_GetDocumentLWTheme(
const mozilla::dom::Document*);
const mozilla::PreferenceSheet::Prefs* Gecko_GetPrefSheetPrefs(
const mozilla::dom::Document*);
bool Gecko_IsTableBorderNonzero(const mozilla::dom::Element* element);
bool Gecko_IsBrowserFrame(const mozilla::dom::Element* element);
// Attributes.
#define SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS(prefix_, implementor_) \
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);
bool Gecko_AssertClassAttrValueIsSane(const nsAttrValue*);
const nsAttrValue* Gecko_GetSVGAnimatedClass(const mozilla::dom::Element*);
SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS(Gecko_,
const mozilla::dom::Element*)
SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS(
Gecko_Snapshot, const mozilla::ServoElementSnapshot*)
#undef SERVO_DECLARE_ELEMENT_ATTR_MATCHING_FUNCTIONS
// Style attributes.
const mozilla::StyleStrong<RawServoDeclarationBlock>*
Gecko_GetStyleAttrDeclarationBlock(const mozilla::dom::Element* element);
void Gecko_UnsetDirtyStyleAttr(const mozilla::dom::Element* element);
const mozilla::StyleStrong<RawServoDeclarationBlock>*
Gecko_GetHTMLPresentationAttrDeclarationBlock(
const mozilla::dom::Element* element);
const mozilla::StyleStrong<RawServoDeclarationBlock>*
Gecko_GetExtraContentStyleDeclarations(const mozilla::dom::Element* element);
const mozilla::StyleStrong<RawServoDeclarationBlock>*
Gecko_GetUnvisitedLinkAttrDeclarationBlock(
const mozilla::dom::Element* element);
const mozilla::StyleStrong<RawServoDeclarationBlock>*
Gecko_GetVisitedLinkAttrDeclarationBlock(const mozilla::dom::Element* element);
const mozilla::StyleStrong<RawServoDeclarationBlock>*
Gecko_GetActiveLinkAttrDeclarationBlock(const mozilla::dom::Element* element);
// Visited handling.
// Returns whether visited styles are enabled for a given document.
bool Gecko_VisitedStylesEnabled(const mozilla::dom::Document*);
// Animations
bool Gecko_GetAnimationRule(
const mozilla::dom::Element* aElementOrPseudo,
mozilla::EffectCompositor::CascadeLevel aCascadeLevel,
RawServoAnimationValueMap* aAnimationValues);
bool Gecko_StyleAnimationsEquals(
const nsStyleAutoArray<mozilla::StyleAnimation>*,
const nsStyleAutoArray<mozilla::StyleAnimation>*);
void Gecko_CopyAnimationNames(
nsStyleAutoArray<mozilla::StyleAnimation>* aDest,
const nsStyleAutoArray<mozilla::StyleAnimation>* aSrc);
// This function takes an already addrefed nsAtom
void Gecko_SetAnimationName(mozilla::StyleAnimation* aStyleAnimation,
nsAtom* aAtom);
void Gecko_UpdateAnimations(const mozilla::dom::Element* aElementOrPseudo,
const mozilla::ComputedStyle* aOldComputedValues,
const mozilla::ComputedStyle* aComputedValues,
mozilla::UpdateAnimationsTasks aTasks);
size_t Gecko_GetAnimationEffectCount(
const mozilla::dom::Element* aElementOrPseudo);
bool Gecko_ElementHasAnimations(const mozilla::dom::Element* aElementOrPseudo);
bool Gecko_ElementHasCSSAnimations(
const mozilla::dom::Element* aElementOrPseudo);
bool Gecko_ElementHasCSSTransitions(
const mozilla::dom::Element* aElementOrPseudo);
bool Gecko_ElementHasWebAnimations(
const mozilla::dom::Element* aElementOrPseudo);
size_t Gecko_ElementTransitions_Length(
const mozilla::dom::Element* aElementOrPseudo);
nsCSSPropertyID Gecko_ElementTransitions_PropertyAt(
const mozilla::dom::Element* aElementOrPseudo, size_t aIndex);
const RawServoAnimationValue* Gecko_ElementTransitions_EndValueAt(
const mozilla::dom::Element* aElementOrPseudo, size_t aIndex);
double Gecko_GetProgressFromComputedTiming(const mozilla::ComputedTiming*);
double Gecko_GetPositionInSegment(
const mozilla::AnimationPropertySegment*, 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.
const RawServoAnimationValue* Gecko_AnimationGetBaseStyle(
const RawServoAnimationValueTable* 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<mozilla::FontFamilyName>* aNames, nsAtom* aName,
mozilla::StyleFontFamilyNameSyntax);
void Gecko_nsTArray_FontFamilyName_AppendGeneric(
nsTArray<mozilla::FontFamilyName>* aNames, mozilla::StyleGenericFontFamily);
// Returns an already-AddRefed SharedFontList with an empty mNames array.
mozilla::SharedFontList* Gecko_SharedFontList_Create();
size_t Gecko_SharedFontList_SizeOfIncludingThis(
mozilla::SharedFontList* fontlist);
size_t Gecko_SharedFontList_SizeOfIncludingThisIfUnshared(
mozilla::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,
const mozilla::dom::Document*);
void Gecko_nsFont_Destroy(nsFont* dst);
// The gfxFontFeatureValueSet returned from this function has zero reference.
gfxFontFeatureValueSet* Gecko_ConstructFontFeatureValueSet();
nsTArray<uint32_t>* Gecko_AppendFeatureValueHashEntry(
gfxFontFeatureValueSet* value_set, nsAtom* family, uint32_t alternate,
nsAtom* name);
// 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.
void Gecko_CounterStyle_ToPtr(const mozilla::StyleCounterStyle*,
mozilla::CounterStylePtr*);
void Gecko_SetCounterStyleToNone(mozilla::CounterStylePtr*);
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);
// list-style-image style.
void Gecko_SetListStyleImageNone(nsStyleList* style_struct);
void Gecko_SetListStyleImageImageValue(
nsStyleList* style_struct, const mozilla::StyleComputedImageUrl* url);
void Gecko_CopyListStyleImageFrom(nsStyleList* dest, const nsStyleList* src);
// Dirtiness tracking.
void Gecko_SetNodeFlags(const nsINode* node, uint32_t flags);
void Gecko_UnsetNodeFlags(const nsINode* node, uint32_t flags);
void Gecko_NoteDirtyElement(const mozilla::dom::Element*);
void Gecko_NoteDirtySubtreeForInvalidation(const mozilla::dom::Element*);
void Gecko_NoteAnimationOnlyDirtyElement(const mozilla::dom::Element*);
bool Gecko_AnimationNameMayBeReferencedFromStyle(const nsPresContext*,
nsAtom* name);
// Incremental restyle.
mozilla::PseudoStyleType Gecko_GetImplementedPseudo(
const mozilla::dom::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(const mozilla::ComputedStyle* old_style,
const mozilla::ComputedStyle* new_style,
bool* any_style_struct_changed,
bool* reset_only_changed);
// Get an element snapshot for a given element from the table.
const mozilla::ServoElementSnapshot* Gecko_GetElementSnapshot(
const mozilla::ServoElementSnapshotTable* table,
const mozilla::dom::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_ResizeAtomArray(nsTArray<RefPtr<nsAtom>>* array, uint32_t length);
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);
// 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(
nsTArray<mozilla::Keyframe>* 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(
nsTArray<mozilla::Keyframe>* 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(
nsTArray<mozilla::Keyframe>* 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(
nsTArray<mozilla::PropertyValuePair>*, nsCSSPropertyID aProperty);
void Gecko_ResetFilters(nsStyleEffects* effects, size_t new_len);
void Gecko_CopyFiltersFrom(nsStyleEffects* aSrc, nsStyleEffects* aDest);
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);
void Gecko_GetComputedURLSpec(const mozilla::StyleComputedUrl* url,
nsCString* spec);
void Gecko_GetComputedImageURLSpec(const mozilla::StyleComputedUrl* url,
nsCString* spec);
void Gecko_nsIURI_Debug(nsIURI*, nsCString* spec);
void Gecko_nsIReferrerInfo_Debug(nsIReferrerInfo* aReferrerInfo,
nsCString* aOut);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(mozilla::URLExtraData, URLExtraData);
NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsIReferrerInfo, nsIReferrerInfo);
void Gecko_FillAllImageLayers(nsStyleImageLayers* layers, uint32_t max_len);
float Gecko_FontStretch_ToFloat(mozilla::FontStretch aStretch);
void Gecko_FontStretch_SetFloat(mozilla::FontStretch* aStretch,
float aFloatValue);
void Gecko_LoadData_Drop(mozilla::StyleLoadData*);
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);
// Moves the generic family in the font-family to the front, or prepends
// aDefaultGeneric, so that user-configured fonts take precedent over document
// fonts.
//
// Document fonts may still be used as fallback for unsupported glyphs though.
void Gecko_nsStyleFont_PrioritizeUserFonts(
nsStyleFont* font, mozilla::StyleGenericFontFamily aDefaultGeneric);
mozilla::Length Gecko_nsStyleFont_ComputeMinSize(const nsStyleFont*,
const mozilla::dom::Document*);
// Computes the default generic font for a generic family and language.
mozilla::StyleGenericFontFamily Gecko_nsStyleFont_ComputeDefaultFontType(
const mozilla::dom::Document*,
mozilla::StyleGenericFontFamily generic_family, nsAtom* language);
mozilla::StyleDefaultFontSizes Gecko_GetBaseSize(nsAtom* lang);
struct GeckoFontMetrics {
mozilla::Length mXSize;
mozilla::Length mChSize; // negatives indicate not found.
};
GeckoFontMetrics Gecko_GetFontMetrics(const nsPresContext*, bool is_vertical,
const nsStyleFont* font,
mozilla::Length font_size,
bool use_user_font_set);
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);
bool Gecko_IsDocumentBody(const mozilla::dom::Element* 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,
const mozilla::dom::Document*);
void Gecko_AddPropertyToSet(nsCSSPropertyIDSet*, nsCSSPropertyID);
// Style-struct management.
#define STYLE_STRUCT(name) \
void Gecko_Construct_Default_nsStyle##name(nsStyle##name* ptr, \
const mozilla::dom::Document*); \
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();
#ifdef MOZ_GECKO_PROFILER
void Gecko_Construct_AutoProfilerLabel(mozilla::AutoProfilerLabel*,
JS::ProfilingCategoryPair);
void Gecko_Destroy_AutoProfilerLabel(mozilla::AutoProfilerLabel*);
#endif
bool Gecko_DocumentRule_UseForPresentation(
const mozilla::dom::Document*, const nsACString* aPattern,
mozilla::css::DocumentMatchingFunction);
// 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
bool Gecko_ErrorReportingEnabled(const mozilla::StyleSheet* sheet,
const mozilla::css::Loader* loader,
uint64_t* aOutWindowId);
void Gecko_ReportUnexpectedCSSError(
uint64_t windowId, 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, const char* selectors, uint32_t selectorsLen,
uint32_t lineNumber, uint32_t colNumber);
// DOM APIs.
void Gecko_ContentList_AppendAll(nsSimpleContentList* aContentList,
const mozilla::dom::Element** 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 mozilla::dom::Document*, nsAtom* aId);
const nsTArray<mozilla::dom::Element*>* Gecko_ShadowRoot_GetElementsWithId(
const mozilla::dom::ShadowRoot*, 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();
// Media feature helpers.
//
// Defined in nsMediaFeatures.cpp.
mozilla::StyleDisplayMode Gecko_MediaFeatures_GetDisplayMode(
const mozilla::dom::Document*);
uint32_t Gecko_MediaFeatures_GetColorDepth(const mozilla::dom::Document*);
void Gecko_MediaFeatures_GetDeviceSize(const mozilla::dom::Document*,
nscoord* width, nscoord* height);
float Gecko_MediaFeatures_GetResolution(const mozilla::dom::Document*);
bool Gecko_MediaFeatures_PrefersReducedMotion(const mozilla::dom::Document*);
mozilla::StylePrefersColorScheme Gecko_MediaFeatures_PrefersColorScheme(
const mozilla::dom::Document*);
mozilla::PointerCapabilities Gecko_MediaFeatures_PrimaryPointerCapabilities(
const mozilla::dom::Document*);
mozilla::PointerCapabilities Gecko_MediaFeatures_AllPointerCapabilities(
const mozilla::dom::Document*);
float Gecko_MediaFeatures_GetDevicePixelRatio(const mozilla::dom::Document*);
bool Gecko_MediaFeatures_HasSystemMetric(const mozilla::dom::Document*,
nsAtom* metric,
bool is_accessible_from_content);
bool Gecko_MediaFeatures_IsResourceDocument(const mozilla::dom::Document*);
nsAtom* Gecko_MediaFeatures_GetOperatingSystemVersion(
const mozilla::dom::Document*);
void Gecko_GetSafeAreaInsets(const nsPresContext*, float*, float*, float*,
float*);
void Gecko_PrintfStderr(const nsCString*);
} // extern "C"
#endif // mozilla_GeckoBindings_h