mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-17 07:15:46 +00:00
1795108268
This reverts commit 1970e82b0d310128eabe8466d39d42cc20e7ae4b, reversing changes made to e882660ea694f9f12d9d2936012dbdf192f8aec8. The reparenting logic is still bogus, but I'll figure out how to deal with that in a bit. Source-Repo: https://github.com/servo/servo Source-Revision: be7d13e37fad6eb594a7b8c8ec9b07fa0df11116 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 6466a27a0b5271a78c3d00357de1db4e14495b17
4962 lines
180 KiB
Rust
4962 lines
180 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use cssparser::{ParseErrorKind, Parser, ParserInput};
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use cssparser::ToCss as ParserToCss;
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use env_logger::LogBuilder;
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use malloc_size_of::MallocSizeOfOps;
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use selectors::{Element, NthIndexCache};
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use selectors::matching::{MatchingContext, MatchingMode, matches_selector};
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use servo_arc::{Arc, ArcBorrow, RawOffsetArc};
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use std::cell::RefCell;
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use std::env;
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use std::fmt::Write;
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use std::iter;
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use std::mem;
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use std::ptr;
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use style::applicable_declarations::ApplicableDeclarationBlock;
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use style::context::{CascadeInputs, QuirksMode, SharedStyleContext, StyleContext};
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use style::context::ThreadLocalStyleContext;
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use style::counter_style;
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use style::data::{ElementStyles, self};
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use style::dom::{ShowSubtreeData, TDocument, TElement, TNode};
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use style::driver;
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use style::element_state::{DocumentState, ElementState};
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use style::error_reporting::{ContextualParseError, NullReporter, ParseErrorReporter};
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use style::font_metrics::{FontMetricsProvider, get_metrics_provider_for_product};
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use style::gecko::data::{GeckoStyleSheet, PerDocumentStyleData, PerDocumentStyleDataImpl};
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use style::gecko::global_style_data::{GLOBAL_STYLE_DATA, GlobalStyleData, STYLE_THREAD_POOL};
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use style::gecko::restyle_damage::GeckoRestyleDamage;
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use style::gecko::selector_parser::PseudoElement;
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use style::gecko::traversal::RecalcStyleOnly;
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use style::gecko::wrapper::{GeckoElement, GeckoNode};
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use style::gecko_bindings::bindings;
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use style::gecko_bindings::bindings::{RawGeckoElementBorrowed, RawGeckoElementBorrowedOrNull, RawGeckoNodeBorrowed};
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use style::gecko_bindings::bindings::{RawGeckoKeyframeListBorrowed, RawGeckoKeyframeListBorrowedMut};
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use style::gecko_bindings::bindings::{RawServoDeclarationBlockBorrowed, RawServoDeclarationBlockStrong};
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use style::gecko_bindings::bindings::{RawServoDocumentRule, RawServoDocumentRuleBorrowed};
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use style::gecko_bindings::bindings::{RawServoFontFeatureValuesRule, RawServoFontFeatureValuesRuleBorrowed};
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use style::gecko_bindings::bindings::{RawServoImportRule, RawServoImportRuleBorrowed};
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use style::gecko_bindings::bindings::{RawServoKeyframe, RawServoKeyframeBorrowed, RawServoKeyframeStrong};
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use style::gecko_bindings::bindings::{RawServoKeyframesRule, RawServoKeyframesRuleBorrowed};
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use style::gecko_bindings::bindings::{RawServoMediaListBorrowed, RawServoMediaListStrong};
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use style::gecko_bindings::bindings::{RawServoMediaRule, RawServoMediaRuleBorrowed};
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use style::gecko_bindings::bindings::{RawServoNamespaceRule, RawServoNamespaceRuleBorrowed};
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use style::gecko_bindings::bindings::{RawServoPageRule, RawServoPageRuleBorrowed};
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use style::gecko_bindings::bindings::{RawServoSelectorListBorrowed, RawServoSelectorListOwned};
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use style::gecko_bindings::bindings::{RawServoSourceSizeListBorrowedOrNull, RawServoSourceSizeListOwned};
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use style::gecko_bindings::bindings::{RawServoStyleSetBorrowed, RawServoStyleSetBorrowedOrNull, RawServoStyleSetOwned};
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use style::gecko_bindings::bindings::{RawServoStyleSheetContentsBorrowed, ServoComputedDataBorrowed};
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use style::gecko_bindings::bindings::{RawServoStyleSheetContentsStrong, ServoStyleContextBorrowed};
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use style::gecko_bindings::bindings::{RawServoSupportsRule, RawServoSupportsRuleBorrowed};
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use style::gecko_bindings::bindings::{ServoCssRulesBorrowed, ServoCssRulesStrong};
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use style::gecko_bindings::bindings::{nsACString, nsAString, nsCSSPropertyIDSetBorrowedMut};
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use style::gecko_bindings::bindings::Gecko_AddPropertyToSet;
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use style::gecko_bindings::bindings::Gecko_AppendPropertyValuePair;
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use style::gecko_bindings::bindings::Gecko_ConstructFontFeatureValueSet;
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use style::gecko_bindings::bindings::Gecko_GetOrCreateFinalKeyframe;
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use style::gecko_bindings::bindings::Gecko_GetOrCreateInitialKeyframe;
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use style::gecko_bindings::bindings::Gecko_GetOrCreateKeyframeAtStart;
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use style::gecko_bindings::bindings::Gecko_HaveSeenPtr;
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use style::gecko_bindings::bindings::Gecko_NewNoneTransform;
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use style::gecko_bindings::bindings::RawGeckoAnimationPropertySegmentBorrowed;
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use style::gecko_bindings::bindings::RawGeckoCSSPropertyIDListBorrowed;
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use style::gecko_bindings::bindings::RawGeckoComputedKeyframeValuesListBorrowedMut;
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use style::gecko_bindings::bindings::RawGeckoComputedTimingBorrowed;
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use style::gecko_bindings::bindings::RawGeckoFontFaceRuleListBorrowedMut;
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use style::gecko_bindings::bindings::RawGeckoServoAnimationValueListBorrowed;
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use style::gecko_bindings::bindings::RawGeckoServoAnimationValueListBorrowedMut;
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use style::gecko_bindings::bindings::RawGeckoServoStyleRuleListBorrowedMut;
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use style::gecko_bindings::bindings::RawServoAnimationValueBorrowed;
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use style::gecko_bindings::bindings::RawServoAnimationValueBorrowedOrNull;
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use style::gecko_bindings::bindings::RawServoAnimationValueMapBorrowedMut;
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use style::gecko_bindings::bindings::RawServoAnimationValueStrong;
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use style::gecko_bindings::bindings::RawServoAnimationValueTableBorrowed;
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use style::gecko_bindings::bindings::RawServoDeclarationBlockBorrowedOrNull;
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use style::gecko_bindings::bindings::RawServoStyleRuleBorrowed;
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use style::gecko_bindings::bindings::RawServoStyleSet;
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use style::gecko_bindings::bindings::ServoStyleContextBorrowedOrNull;
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use style::gecko_bindings::bindings::nsCSSValueBorrowedMut;
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use style::gecko_bindings::bindings::nsTArrayBorrowed_uintptr_t;
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use style::gecko_bindings::bindings::nsTimingFunctionBorrowed;
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use style::gecko_bindings::bindings::nsTimingFunctionBorrowedMut;
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use style::gecko_bindings::structs;
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use style::gecko_bindings::structs::{CallerType, CSSPseudoElementType, CompositeOperation};
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use style::gecko_bindings::structs::{Loader, LoaderReusableStyleSheets};
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use style::gecko_bindings::structs::{RawServoStyleRule, ServoStyleContextStrong, RustString};
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use style::gecko_bindings::structs::{ServoStyleSheet, SheetParsingMode, nsAtom, nsCSSPropertyID};
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use style::gecko_bindings::structs::{nsCSSFontDesc, nsCSSFontFaceRule, nsCSSCounterStyleRule};
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use style::gecko_bindings::structs::{nsRestyleHint, nsChangeHint, PropertyValuePair};
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use style::gecko_bindings::structs::AtomArray;
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use style::gecko_bindings::structs::IterationCompositeOperation;
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use style::gecko_bindings::structs::MallocSizeOf as GeckoMallocSizeOf;
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use style::gecko_bindings::structs::OriginFlags;
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use style::gecko_bindings::structs::OriginFlags_Author;
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use style::gecko_bindings::structs::OriginFlags_User;
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use style::gecko_bindings::structs::OriginFlags_UserAgent;
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use style::gecko_bindings::structs::RawGeckoGfxMatrix4x4;
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use style::gecko_bindings::structs::RawGeckoPresContextOwned;
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use style::gecko_bindings::structs::RawServoSelectorList;
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use style::gecko_bindings::structs::RawServoSourceSizeList;
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use style::gecko_bindings::structs::SeenPtrs;
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use style::gecko_bindings::structs::ServoElementSnapshotTable;
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use style::gecko_bindings::structs::ServoStyleSetSizes;
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use style::gecko_bindings::structs::ServoTraversalFlags;
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use style::gecko_bindings::structs::StyleRuleInclusion;
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use style::gecko_bindings::structs::URLExtraData;
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use style::gecko_bindings::structs::gfxFontFeatureValueSet;
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use style::gecko_bindings::structs::nsCSSCounterDesc;
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use style::gecko_bindings::structs::nsCSSValue;
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use style::gecko_bindings::structs::nsCSSValueSharedList;
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use style::gecko_bindings::structs::nsCompatibility;
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use style::gecko_bindings::structs::nsIDocument;
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use style::gecko_bindings::structs::nsStyleTransformMatrix::MatrixTransformOperator;
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use style::gecko_bindings::structs::nsTArray;
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use style::gecko_bindings::structs::nsresult;
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use style::gecko_bindings::sugar::ownership::{FFIArcHelpers, HasFFI, HasArcFFI};
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use style::gecko_bindings::sugar::ownership::{HasSimpleFFI, Strong};
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use style::gecko_bindings::sugar::refptr::RefPtr;
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use style::gecko_properties;
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use style::invalidation::element::restyle_hints;
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use style::media_queries::{Device, MediaList, parse_media_query_list};
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use style::parser::{Parse, ParserContext, self};
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use style::properties::{CascadeFlags, ComputedValues, DeclarationSource, Importance};
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use style::properties::{LonghandId, LonghandIdSet, PropertyDeclaration, PropertyDeclarationBlock, PropertyId};
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use style::properties::{PropertyDeclarationId, ShorthandId};
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use style::properties::{SourcePropertyDeclaration, StyleBuilder};
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use style::properties::{parse_one_declaration_into, parse_style_attribute};
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use style::properties::animated_properties::AnimationValue;
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use style::properties::animated_properties::compare_property_priority;
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use style::rule_cache::RuleCacheConditions;
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use style::rule_tree::{CascadeLevel, StrongRuleNode, StyleSource};
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use style::selector_parser::{PseudoElementCascadeType, SelectorImpl};
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use style::shared_lock::{SharedRwLockReadGuard, StylesheetGuards, ToCssWithGuard, Locked};
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use style::string_cache::{Atom, WeakAtom};
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use style::style_adjuster::StyleAdjuster;
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use style::stylesheets::{CssRule, CssRules, CssRuleType, CssRulesHelpers, DocumentRule};
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use style::stylesheets::{FontFeatureValuesRule, ImportRule, KeyframesRule, MediaRule};
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use style::stylesheets::{NamespaceRule, Origin, OriginSet, PageRule, StyleRule};
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use style::stylesheets::{StylesheetContents, SupportsRule};
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use style::stylesheets::StylesheetLoader as StyleStylesheetLoader;
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use style::stylesheets::keyframes_rule::{Keyframe, KeyframeSelector, KeyframesStepValue};
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use style::stylesheets::supports_rule::parse_condition_or_declaration;
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use style::stylist::{add_size_of_ua_cache, RuleInclusion, Stylist};
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use style::thread_state;
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use style::timer::Timer;
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use style::traversal::DomTraversal;
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use style::traversal::resolve_style;
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use style::traversal_flags::{self, TraversalFlags};
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use style::values::{CustomIdent, KeyframesName};
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use style::values::animated::{Animate, Procedure, ToAnimatedZero};
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use style::values::computed::{Context, ToComputedValue};
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use style::values::distance::ComputeSquaredDistance;
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use style::values::specified;
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use style::values::specified::gecko::IntersectionObserverRootMargin;
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use style::values::specified::source_size_list::SourceSizeList;
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use style_traits::{ParsingMode, StyleParseErrorKind, ToCss};
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use super::error_reporter::ErrorReporter;
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use super::stylesheet_loader::StylesheetLoader;
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/*
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* For Gecko->Servo function calls, we need to redeclare the same signature that was declared in
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* the C header in Gecko. In order to catch accidental mismatches, we run rust-bindgen against
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* those signatures as well, giving us a second declaration of all the Servo_* functions in this
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* crate. If there's a mismatch, LLVM will assert and abort, which is a rather awful thing to
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* depend on but good enough for our purposes.
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*/
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// A dummy url data for where we don't pass url data in.
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// We need to get rid of this sooner than later.
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static mut DUMMY_URL_DATA: *mut URLExtraData = 0 as *mut URLExtraData;
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#[no_mangle]
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pub extern "C" fn Servo_Initialize(dummy_url_data: *mut URLExtraData) {
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use style::gecko_bindings::sugar::origin_flags;
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// Initialize logging.
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let mut builder = LogBuilder::new();
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let default_level = if cfg!(debug_assertions) { "warn" } else { "error" };
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match env::var("RUST_LOG") {
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Ok(v) => builder.parse(&v).init().unwrap(),
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_ => builder.parse(default_level).init().unwrap(),
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};
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// Pretend that we're a Servo Layout thread, to make some assertions happy.
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thread_state::initialize(thread_state::ThreadState::LAYOUT);
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// Perform some debug-only runtime assertions.
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restyle_hints::assert_restyle_hints_match();
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origin_flags::assert_flags_match();
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parser::assert_parsing_mode_match();
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traversal_flags::assert_traversal_flags_match();
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specified::font::assert_variant_east_asian_matches();
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specified::font::assert_variant_ligatures_matches();
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specified::box_::assert_touch_action_matches();
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// Initialize the dummy url data
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unsafe { DUMMY_URL_DATA = dummy_url_data; }
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}
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#[no_mangle]
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pub extern "C" fn Servo_InitializeCooperativeThread() {
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// Pretend that we're a Servo Layout thread to make some assertions happy.
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thread_state::initialize(thread_state::ThreadState::LAYOUT);
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}
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#[no_mangle]
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pub extern "C" fn Servo_Shutdown() {
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// The dummy url will be released after shutdown, so clear the
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// reference to avoid use-after-free.
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unsafe { DUMMY_URL_DATA = ptr::null_mut(); }
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Stylist::shutdown();
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}
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unsafe fn dummy_url_data() -> &'static RefPtr<URLExtraData> {
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RefPtr::from_ptr_ref(&DUMMY_URL_DATA)
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}
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fn create_shared_context<'a>(
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global_style_data: &GlobalStyleData,
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guard: &'a SharedRwLockReadGuard,
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per_doc_data: &'a PerDocumentStyleDataImpl,
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traversal_flags: TraversalFlags,
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snapshot_map: &'a ServoElementSnapshotTable,
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) -> SharedStyleContext<'a> {
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SharedStyleContext {
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stylist: &per_doc_data.stylist,
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visited_styles_enabled: per_doc_data.visited_styles_enabled(),
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options: global_style_data.options.clone(),
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guards: StylesheetGuards::same(guard),
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timer: Timer::new(),
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traversal_flags,
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snapshot_map,
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}
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}
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fn traverse_subtree(
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element: GeckoElement,
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global_style_data: &GlobalStyleData,
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per_doc_data: &PerDocumentStyleDataImpl,
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guard: &SharedRwLockReadGuard,
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traversal_flags: TraversalFlags,
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snapshots: &ServoElementSnapshotTable,
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) {
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let shared_style_context = create_shared_context(
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&global_style_data,
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&guard,
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&per_doc_data,
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traversal_flags,
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snapshots,
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);
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let token = RecalcStyleOnly::pre_traverse(
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element,
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&shared_style_context,
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);
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if !token.should_traverse() {
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return;
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}
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debug!("Traversing subtree from {:?}", element);
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let thread_pool_holder = &*STYLE_THREAD_POOL;
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let thread_pool = if traversal_flags.contains(TraversalFlags::ParallelTraversal) {
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thread_pool_holder.style_thread_pool.as_ref()
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} else {
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None
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};
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let is_restyle = element.get_data().is_some();
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let traversal = RecalcStyleOnly::new(shared_style_context);
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let (used_parallel, stats) = driver::traverse_dom(&traversal, token, thread_pool);
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if traversal_flags.contains(TraversalFlags::ParallelTraversal) &&
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!traversal_flags.contains(TraversalFlags::AnimationOnly) &&
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is_restyle && !element.is_native_anonymous() {
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// We turn off parallel traversal for background tabs; this
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// shouldn't count in telemetry. We're also focusing on restyles so
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// we ensure that it's a restyle.
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per_doc_data.record_traversal(used_parallel, stats);
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}
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}
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/// Traverses the subtree rooted at `root` for restyling.
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///
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/// Returns whether the root was restyled. Whether anything else was restyled or
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/// not can be inferred from the dirty bits in the rest of the tree.
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#[no_mangle]
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pub extern "C" fn Servo_TraverseSubtree(
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root: RawGeckoElementBorrowed,
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raw_data: RawServoStyleSetBorrowed,
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snapshots: *const ServoElementSnapshotTable,
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raw_flags: ServoTraversalFlags
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) -> bool {
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let traversal_flags = TraversalFlags::from_bits_truncate(raw_flags);
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debug_assert!(!snapshots.is_null());
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let element = GeckoElement(root);
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debug!("Servo_TraverseSubtree (flags={:?})", traversal_flags);
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debug!("{:?}", ShowSubtreeData(element.as_node()));
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if cfg!(debug_assertions) {
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if let Some(parent) = element.traversal_parent() {
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let data =
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parent.borrow_data().expect("Styling element with unstyled parent");
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assert!(
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!data.styles.is_display_none(),
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"Styling element with display: none parent"
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);
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}
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}
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let needs_animation_only_restyle =
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element.has_animation_only_dirty_descendants() ||
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element.has_animation_restyle_hints();
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let per_doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow();
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debug_assert!(!per_doc_data.stylist.stylesheets_have_changed());
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let global_style_data = &*GLOBAL_STYLE_DATA;
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let guard = global_style_data.shared_lock.read();
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let was_initial_style = element.get_data().is_none();
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if needs_animation_only_restyle {
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debug!("Servo_TraverseSubtree doing animation-only restyle (aodd={})",
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element.has_animation_only_dirty_descendants());
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traverse_subtree(
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element,
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&global_style_data,
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&per_doc_data,
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&guard,
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traversal_flags | TraversalFlags::AnimationOnly,
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unsafe { &*snapshots },
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);
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}
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traverse_subtree(
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element,
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&global_style_data,
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&per_doc_data,
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&guard,
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traversal_flags,
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unsafe { &*snapshots },
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);
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debug!("Servo_TraverseSubtree complete (dd={}, aodd={}, lfcd={}, lfc={}, data={:?})",
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element.has_dirty_descendants(),
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element.has_animation_only_dirty_descendants(),
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element.descendants_need_frames(),
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element.needs_frame(),
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element.borrow_data().unwrap());
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if was_initial_style {
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debug_assert!(!element.borrow_data().unwrap().contains_restyle_data());
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false
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} else {
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let element_was_restyled =
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element.borrow_data().unwrap().contains_restyle_data();
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element_was_restyled
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}
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}
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/// Checks whether the rule tree has crossed its threshold for unused nodes, and
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/// if so, frees them.
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#[no_mangle]
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pub extern "C" fn Servo_MaybeGCRuleTree(raw_data: RawServoStyleSetBorrowed) {
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let per_doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
unsafe {
|
|
per_doc_data.stylist.rule_tree().maybe_gc();
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValues_Interpolate(
|
|
from: RawServoAnimationValueBorrowed,
|
|
to: RawServoAnimationValueBorrowed,
|
|
progress: f64,
|
|
) -> RawServoAnimationValueStrong {
|
|
let from_value = AnimationValue::as_arc(&from);
|
|
let to_value = AnimationValue::as_arc(&to);
|
|
if let Ok(value) = from_value.animate(to_value, Procedure::Interpolate { progress }) {
|
|
Arc::new(value).into_strong()
|
|
} else {
|
|
RawServoAnimationValueStrong::null()
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValues_IsInterpolable(from: RawServoAnimationValueBorrowed,
|
|
to: RawServoAnimationValueBorrowed)
|
|
-> bool {
|
|
let from_value = AnimationValue::as_arc(&from);
|
|
let to_value = AnimationValue::as_arc(&to);
|
|
from_value.animate(to_value, Procedure::Interpolate { progress: 0.5 }).is_ok()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValues_Add(
|
|
a: RawServoAnimationValueBorrowed,
|
|
b: RawServoAnimationValueBorrowed,
|
|
) -> RawServoAnimationValueStrong {
|
|
let a_value = AnimationValue::as_arc(&a);
|
|
let b_value = AnimationValue::as_arc(&b);
|
|
if let Ok(value) = a_value.animate(b_value, Procedure::Add) {
|
|
Arc::new(value).into_strong()
|
|
} else {
|
|
RawServoAnimationValueStrong::null()
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValues_Accumulate(
|
|
a: RawServoAnimationValueBorrowed,
|
|
b: RawServoAnimationValueBorrowed,
|
|
count: u64,
|
|
) -> RawServoAnimationValueStrong {
|
|
let a_value = AnimationValue::as_arc(&a);
|
|
let b_value = AnimationValue::as_arc(&b);
|
|
if let Ok(value) = a_value.animate(b_value, Procedure::Accumulate { count }) {
|
|
Arc::new(value).into_strong()
|
|
} else {
|
|
RawServoAnimationValueStrong::null()
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValues_GetZeroValue(
|
|
value_to_match: RawServoAnimationValueBorrowed)
|
|
-> RawServoAnimationValueStrong
|
|
{
|
|
let value_to_match = AnimationValue::as_arc(&value_to_match);
|
|
if let Ok(zero_value) = value_to_match.to_animated_zero() {
|
|
Arc::new(zero_value).into_strong()
|
|
} else {
|
|
RawServoAnimationValueStrong::null()
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValues_ComputeDistance(from: RawServoAnimationValueBorrowed,
|
|
to: RawServoAnimationValueBorrowed)
|
|
-> f64 {
|
|
let from_value = AnimationValue::as_arc(&from);
|
|
let to_value = AnimationValue::as_arc(&to);
|
|
// If compute_squared_distance() failed, this function will return negative value
|
|
// in order to check whether we support the specified paced animation values.
|
|
from_value.compute_squared_distance(to_value).map(|d| d.sqrt()).unwrap_or(-1.0)
|
|
}
|
|
|
|
/// Compute one of the endpoints for the interpolation interval, compositing it with the
|
|
/// underlying value if needed.
|
|
/// An None returned value means, "Just use endpoint_value as-is."
|
|
/// It is the responsibility of the caller to ensure that |underlying_value| is provided
|
|
/// when it will be used.
|
|
fn composite_endpoint(
|
|
endpoint_value: Option<&RawOffsetArc<AnimationValue>>,
|
|
composite: CompositeOperation,
|
|
underlying_value: Option<&AnimationValue>,
|
|
) -> Option<AnimationValue> {
|
|
match endpoint_value {
|
|
Some(endpoint_value) => {
|
|
match composite {
|
|
CompositeOperation::Add => {
|
|
underlying_value
|
|
.expect("We should have an underlying_value")
|
|
.animate(endpoint_value, Procedure::Add).ok()
|
|
},
|
|
CompositeOperation::Accumulate => {
|
|
underlying_value
|
|
.expect("We should have an underlying value")
|
|
.animate(endpoint_value, Procedure::Accumulate { count: 1 })
|
|
.ok()
|
|
},
|
|
_ => None,
|
|
}
|
|
},
|
|
None => underlying_value.map(|v| v.clone()),
|
|
}
|
|
}
|
|
|
|
/// Accumulate one of the endpoints of the animation interval.
|
|
/// A returned value of None means, "Just use endpoint_value as-is."
|
|
fn accumulate_endpoint(
|
|
endpoint_value: Option<&RawOffsetArc<AnimationValue>>,
|
|
composited_value: Option<AnimationValue>,
|
|
last_value: &AnimationValue,
|
|
current_iteration: u64
|
|
) -> Option<AnimationValue> {
|
|
debug_assert!(endpoint_value.is_some() || composited_value.is_some(),
|
|
"Should have a suitable value to use");
|
|
|
|
let count = current_iteration;
|
|
match composited_value {
|
|
Some(endpoint) => {
|
|
last_value
|
|
.animate(&endpoint, Procedure::Accumulate { count })
|
|
.ok()
|
|
.or(Some(endpoint))
|
|
},
|
|
None => {
|
|
last_value
|
|
.animate(endpoint_value.unwrap(), Procedure::Accumulate { count })
|
|
.ok()
|
|
},
|
|
}
|
|
}
|
|
|
|
/// Compose the animation segment. We composite it with the underlying_value and last_value if
|
|
/// needed.
|
|
/// The caller is responsible for providing an underlying value and last value
|
|
/// in all situations where there are needed.
|
|
fn compose_animation_segment(
|
|
segment: RawGeckoAnimationPropertySegmentBorrowed,
|
|
underlying_value: Option<&AnimationValue>,
|
|
last_value: Option<&AnimationValue>,
|
|
iteration_composite: IterationCompositeOperation,
|
|
current_iteration: u64,
|
|
total_progress: f64,
|
|
segment_progress: f64,
|
|
) -> AnimationValue {
|
|
// Extract keyframe values.
|
|
let raw_from_value;
|
|
let keyframe_from_value = if !segment.mFromValue.mServo.mRawPtr.is_null() {
|
|
raw_from_value = unsafe { &*segment.mFromValue.mServo.mRawPtr };
|
|
Some(AnimationValue::as_arc(&raw_from_value))
|
|
} else {
|
|
None
|
|
};
|
|
|
|
let raw_to_value;
|
|
let keyframe_to_value = if !segment.mToValue.mServo.mRawPtr.is_null() {
|
|
raw_to_value = unsafe { &*segment.mToValue.mServo.mRawPtr };
|
|
Some(AnimationValue::as_arc(&raw_to_value))
|
|
} else {
|
|
None
|
|
};
|
|
|
|
let mut composited_from_value = composite_endpoint(keyframe_from_value,
|
|
segment.mFromComposite,
|
|
underlying_value);
|
|
let mut composited_to_value = composite_endpoint(keyframe_to_value,
|
|
segment.mToComposite,
|
|
underlying_value);
|
|
|
|
debug_assert!(keyframe_from_value.is_some() || composited_from_value.is_some(),
|
|
"Should have a suitable from value to use");
|
|
debug_assert!(keyframe_to_value.is_some() || composited_to_value.is_some(),
|
|
"Should have a suitable to value to use");
|
|
|
|
// Apply iteration composite behavior.
|
|
if iteration_composite == IterationCompositeOperation::Accumulate && current_iteration > 0 {
|
|
let last_value = last_value.unwrap_or_else(|| {
|
|
underlying_value.expect("Should have a valid underlying value")
|
|
});
|
|
|
|
composited_from_value = accumulate_endpoint(keyframe_from_value,
|
|
composited_from_value,
|
|
last_value,
|
|
current_iteration);
|
|
composited_to_value = accumulate_endpoint(keyframe_to_value,
|
|
composited_to_value,
|
|
last_value,
|
|
current_iteration);
|
|
}
|
|
|
|
// Use the composited value if there is one, otherwise, use the original keyframe value.
|
|
let from = composited_from_value.as_ref().unwrap_or_else(|| keyframe_from_value.unwrap());
|
|
let to = composited_to_value.as_ref().unwrap_or_else(|| keyframe_to_value.unwrap());
|
|
|
|
if segment.mToKey == segment.mFromKey {
|
|
return if total_progress < 0. { from.clone() } else { to.clone() };
|
|
}
|
|
|
|
match from.animate(to, Procedure::Interpolate { progress: segment_progress }) {
|
|
Ok(value) => value,
|
|
_ => if segment_progress < 0.5 { from.clone() } else { to.clone() },
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComposeAnimationSegment(
|
|
segment: RawGeckoAnimationPropertySegmentBorrowed,
|
|
underlying_value: RawServoAnimationValueBorrowedOrNull,
|
|
last_value: RawServoAnimationValueBorrowedOrNull,
|
|
iteration_composite: IterationCompositeOperation,
|
|
progress: f64,
|
|
current_iteration: u64
|
|
) -> RawServoAnimationValueStrong {
|
|
let underlying_value = AnimationValue::arc_from_borrowed(&underlying_value).map(|v| &**v);
|
|
let last_value = AnimationValue::arc_from_borrowed(&last_value).map(|v| &**v);
|
|
let result = compose_animation_segment(segment,
|
|
underlying_value,
|
|
last_value,
|
|
iteration_composite,
|
|
current_iteration,
|
|
progress,
|
|
progress);
|
|
Arc::new(result).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationCompose(raw_value_map: RawServoAnimationValueMapBorrowedMut,
|
|
base_values: RawServoAnimationValueTableBorrowed,
|
|
css_property: nsCSSPropertyID,
|
|
segment: RawGeckoAnimationPropertySegmentBorrowed,
|
|
last_segment: RawGeckoAnimationPropertySegmentBorrowed,
|
|
computed_timing: RawGeckoComputedTimingBorrowed,
|
|
iteration_composite: IterationCompositeOperation)
|
|
{
|
|
use style::gecko_bindings::bindings::Gecko_AnimationGetBaseStyle;
|
|
use style::gecko_bindings::bindings::Gecko_GetPositionInSegment;
|
|
use style::gecko_bindings::bindings::Gecko_GetProgressFromComputedTiming;
|
|
use style::properties::animated_properties::AnimationValueMap;
|
|
|
|
let property = match LonghandId::from_nscsspropertyid(css_property) {
|
|
Ok(longhand) if longhand.is_animatable() => longhand,
|
|
_ => return,
|
|
};
|
|
let value_map = AnimationValueMap::from_ffi_mut(raw_value_map);
|
|
|
|
// We will need an underlying value if either of the endpoints is null...
|
|
let need_underlying_value = segment.mFromValue.mServo.mRawPtr.is_null() ||
|
|
segment.mToValue.mServo.mRawPtr.is_null() ||
|
|
// ... or if they have a non-replace composite mode ...
|
|
segment.mFromComposite != CompositeOperation::Replace ||
|
|
segment.mToComposite != CompositeOperation::Replace ||
|
|
// ... or if we accumulate onto the last value and it is null.
|
|
(iteration_composite == IterationCompositeOperation::Accumulate &&
|
|
computed_timing.mCurrentIteration > 0 &&
|
|
last_segment.mToValue.mServo.mRawPtr.is_null());
|
|
|
|
// If either of the segment endpoints are null, get the underlying value to
|
|
// use from the current value in the values map (set by a lower-priority
|
|
// effect), or, if there is no current value, look up the cached base value
|
|
// for this property.
|
|
let underlying_value = if need_underlying_value {
|
|
let previous_composed_value = value_map.get(&property).cloned();
|
|
previous_composed_value.or_else(|| {
|
|
let raw_base_style = unsafe { Gecko_AnimationGetBaseStyle(base_values, css_property) };
|
|
AnimationValue::arc_from_borrowed(&raw_base_style).map(|v| &**v).cloned()
|
|
})
|
|
} else {
|
|
None
|
|
};
|
|
|
|
if need_underlying_value && underlying_value.is_none() {
|
|
warn!("Underlying value should be valid when we expect to use it");
|
|
return;
|
|
}
|
|
|
|
let raw_last_value;
|
|
let last_value = if !last_segment.mToValue.mServo.mRawPtr.is_null() {
|
|
raw_last_value = unsafe { &*last_segment.mToValue.mServo.mRawPtr };
|
|
Some(&**AnimationValue::as_arc(&raw_last_value))
|
|
} else {
|
|
None
|
|
};
|
|
|
|
let progress = unsafe { Gecko_GetProgressFromComputedTiming(computed_timing) };
|
|
let position = if segment.mToKey == segment.mFromKey {
|
|
// Note: compose_animation_segment doesn't use this value
|
|
// if segment.mFromKey == segment.mToKey, so assigning |progress| directly is fine.
|
|
progress
|
|
} else {
|
|
unsafe { Gecko_GetPositionInSegment(segment, progress, computed_timing.mBeforeFlag) }
|
|
};
|
|
|
|
let result = compose_animation_segment(segment,
|
|
underlying_value.as_ref(),
|
|
last_value,
|
|
iteration_composite,
|
|
computed_timing.mCurrentIteration,
|
|
progress,
|
|
position);
|
|
value_map.insert(property, result);
|
|
}
|
|
|
|
macro_rules! get_property_id_from_nscsspropertyid {
|
|
($property_id: ident, $ret: expr) => {{
|
|
match PropertyId::from_nscsspropertyid($property_id) {
|
|
Ok(property_id) => property_id,
|
|
Err(()) => { return $ret; }
|
|
}
|
|
}}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_Serialize(value: RawServoAnimationValueBorrowed,
|
|
property: nsCSSPropertyID,
|
|
buffer: *mut nsAString)
|
|
{
|
|
let uncomputed_value = AnimationValue::as_arc(&value).uncompute();
|
|
let mut string = String::new();
|
|
let rv = PropertyDeclarationBlock::with_one(uncomputed_value, Importance::Normal)
|
|
.single_value_to_css(&get_property_id_from_nscsspropertyid!(property, ()), &mut string,
|
|
None, None /* No extra custom properties */);
|
|
debug_assert!(rv.is_ok());
|
|
|
|
let buffer = unsafe { buffer.as_mut().unwrap() };
|
|
buffer.assign_utf8(&string);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Shorthand_AnimationValues_Serialize(shorthand_property: nsCSSPropertyID,
|
|
values: RawGeckoServoAnimationValueListBorrowed,
|
|
buffer: *mut nsAString)
|
|
{
|
|
let property_id = get_property_id_from_nscsspropertyid!(shorthand_property, ());
|
|
let shorthand = match property_id.as_shorthand() {
|
|
Ok(shorthand) => shorthand,
|
|
_ => return,
|
|
};
|
|
|
|
// Convert RawServoAnimationValue(s) into a vector of PropertyDeclaration
|
|
// so that we can use reference of the PropertyDeclaration without worrying
|
|
// about its lifetime. (longhands_to_css() expects &PropertyDeclaration
|
|
// iterator.)
|
|
let declarations: Vec<PropertyDeclaration> =
|
|
values.iter().map(|v| AnimationValue::as_arc(unsafe { &&*v.mRawPtr }).uncompute()).collect();
|
|
|
|
let mut string = String::new();
|
|
let rv = shorthand.longhands_to_css(declarations.iter(), &mut string);
|
|
if rv.is_ok() {
|
|
let buffer = unsafe { buffer.as_mut().unwrap() };
|
|
buffer.assign_utf8(&string);
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_GetOpacity(
|
|
value: RawServoAnimationValueBorrowed
|
|
) -> f32 {
|
|
let value = AnimationValue::as_arc(&value);
|
|
if let AnimationValue::Opacity(opacity) = **value {
|
|
opacity
|
|
} else {
|
|
panic!("The AnimationValue should be Opacity");
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_Opacity(
|
|
opacity: f32
|
|
) -> RawServoAnimationValueStrong {
|
|
Arc::new(AnimationValue::Opacity(opacity)).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_GetTransform(
|
|
value: RawServoAnimationValueBorrowed,
|
|
list: *mut structs::RefPtr<nsCSSValueSharedList>
|
|
) {
|
|
let value = AnimationValue::as_arc(&value);
|
|
if let AnimationValue::Transform(ref servo_list) = **value {
|
|
let list = unsafe { &mut *list };
|
|
if servo_list.0.is_empty() {
|
|
unsafe {
|
|
list.set_move(RefPtr::from_addrefed(Gecko_NewNoneTransform()));
|
|
}
|
|
} else {
|
|
gecko_properties::convert_transform(&servo_list.0, list);
|
|
}
|
|
} else {
|
|
panic!("The AnimationValue should be transform");
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_Transform(
|
|
list: *const nsCSSValueSharedList
|
|
) -> RawServoAnimationValueStrong {
|
|
let list = unsafe { (&*list).mHead.as_ref() };
|
|
let transform = gecko_properties::clone_transform_from_list(list);
|
|
Arc::new(AnimationValue::Transform(transform)).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_DeepEqual(
|
|
this: RawServoAnimationValueBorrowed,
|
|
other: RawServoAnimationValueBorrowed,
|
|
) -> bool {
|
|
let this_value = AnimationValue::as_arc(&this);
|
|
let other_value = AnimationValue::as_arc(&other);
|
|
this_value == other_value
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_Uncompute(
|
|
value: RawServoAnimationValueBorrowed,
|
|
) -> RawServoDeclarationBlockStrong {
|
|
let value = AnimationValue::as_arc(&value);
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
Arc::new(global_style_data.shared_lock.wrap(
|
|
PropertyDeclarationBlock::with_one(value.uncompute(), Importance::Normal))).into_strong()
|
|
}
|
|
|
|
// Return the ComputedValues by a base ComputedValues and the rules.
|
|
fn resolve_rules_for_element_with_context<'a>(
|
|
element: GeckoElement<'a>,
|
|
mut context: StyleContext<GeckoElement<'a>>,
|
|
rules: StrongRuleNode
|
|
) -> Arc<ComputedValues> {
|
|
use style::style_resolver::{PseudoElementResolution, StyleResolverForElement};
|
|
|
|
// This currently ignores visited styles, which seems acceptable, as
|
|
// existing browsers don't appear to animate visited styles.
|
|
let inputs =
|
|
CascadeInputs {
|
|
rules: Some(rules),
|
|
visited_rules: None,
|
|
};
|
|
|
|
// Actually `PseudoElementResolution` doesn't matter.
|
|
StyleResolverForElement::new(element,
|
|
&mut context,
|
|
RuleInclusion::All,
|
|
PseudoElementResolution::IfApplicable)
|
|
.cascade_style_and_visited_with_default_parents(inputs).0
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_GetBaseComputedValuesForElement(
|
|
raw_style_set: RawServoStyleSetBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
computed_values: ServoStyleContextBorrowed,
|
|
snapshots: *const ServoElementSnapshotTable,
|
|
) -> ServoStyleContextStrong {
|
|
debug_assert!(!snapshots.is_null());
|
|
let computed_values = unsafe { ArcBorrow::from_ref(computed_values) };
|
|
|
|
let rules = match computed_values.rules {
|
|
None => return computed_values.clone_arc().into(),
|
|
Some(ref rules) => rules,
|
|
};
|
|
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_style_set).borrow();
|
|
let without_animations_rules = doc_data.stylist.rule_tree().remove_animation_rules(rules);
|
|
if without_animations_rules == *rules {
|
|
return computed_values.clone_arc().into();
|
|
}
|
|
|
|
let element = GeckoElement(element);
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let shared = create_shared_context(&global_style_data,
|
|
&guard,
|
|
&doc_data,
|
|
TraversalFlags::empty(),
|
|
unsafe { &*snapshots });
|
|
let mut tlc = ThreadLocalStyleContext::new(&shared);
|
|
let context = StyleContext {
|
|
shared: &shared,
|
|
thread_local: &mut tlc,
|
|
};
|
|
|
|
resolve_rules_for_element_with_context(element, context, without_animations_rules).into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_GetComputedValuesByAddingAnimation(
|
|
raw_style_set: RawServoStyleSetBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
computed_values: ServoStyleContextBorrowed,
|
|
snapshots: *const ServoElementSnapshotTable,
|
|
animation_value: RawServoAnimationValueBorrowed,
|
|
) -> ServoStyleContextStrong {
|
|
debug_assert!(!snapshots.is_null());
|
|
let computed_values = unsafe { ArcBorrow::from_ref(computed_values) };
|
|
let rules = match computed_values.rules {
|
|
None => return ServoStyleContextStrong::null(),
|
|
Some(ref rules) => rules,
|
|
};
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let uncomputed_value = AnimationValue::as_arc(&animation_value).uncompute();
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_style_set).borrow();
|
|
|
|
let with_animations_rules = {
|
|
let guards = StylesheetGuards::same(&guard);
|
|
let declarations =
|
|
Arc::new(global_style_data.shared_lock.wrap(
|
|
PropertyDeclarationBlock::with_one(uncomputed_value, Importance::Normal)));
|
|
doc_data.stylist
|
|
.rule_tree()
|
|
.add_animation_rules_at_transition_level(rules, declarations, &guards)
|
|
};
|
|
|
|
let element = GeckoElement(element);
|
|
if element.borrow_data().is_none() {
|
|
return ServoStyleContextStrong::null();
|
|
}
|
|
|
|
let shared = create_shared_context(&global_style_data,
|
|
&guard,
|
|
&doc_data,
|
|
TraversalFlags::empty(),
|
|
unsafe { &*snapshots });
|
|
let mut tlc: ThreadLocalStyleContext<GeckoElement> = ThreadLocalStyleContext::new(&shared);
|
|
let context = StyleContext {
|
|
shared: &shared,
|
|
thread_local: &mut tlc,
|
|
};
|
|
|
|
resolve_rules_for_element_with_context(element, context, with_animations_rules).into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_ExtractAnimationValue(
|
|
computed_values: ServoStyleContextBorrowed,
|
|
property_id: nsCSSPropertyID,
|
|
) -> RawServoAnimationValueStrong {
|
|
let property = match LonghandId::from_nscsspropertyid(property_id) {
|
|
Ok(longhand) => longhand,
|
|
Err(()) => return Strong::null(),
|
|
};
|
|
|
|
match AnimationValue::from_computed_values(&property, &computed_values) {
|
|
Some(v) => Arc::new(v).into_strong(),
|
|
None => Strong::null(),
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Property_IsAnimatable(property: nsCSSPropertyID) -> bool {
|
|
use style::properties::animated_properties;
|
|
animated_properties::nscsspropertyid_is_animatable(property)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Property_IsTransitionable(property: nsCSSPropertyID) -> bool {
|
|
use style::properties::animated_properties;
|
|
animated_properties::nscsspropertyid_is_transitionable(property)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Property_IsDiscreteAnimatable(property: nsCSSPropertyID) -> bool {
|
|
match LonghandId::from_nscsspropertyid(property) {
|
|
Ok(longhand) => longhand.is_discrete_animatable(),
|
|
Err(()) => return false,
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleWorkerThreadCount() -> u32 {
|
|
STYLE_THREAD_POOL.num_threads as u32
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_ClearData(element: RawGeckoElementBorrowed) {
|
|
unsafe { GeckoElement(element).clear_data() };
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_SizeOfExcludingThisAndCVs(malloc_size_of: GeckoMallocSizeOf,
|
|
malloc_enclosing_size_of:
|
|
GeckoMallocSizeOf,
|
|
seen_ptrs: *mut SeenPtrs,
|
|
element: RawGeckoElementBorrowed) -> usize {
|
|
let element = GeckoElement(element);
|
|
let borrow = element.borrow_data();
|
|
if let Some(data) = borrow {
|
|
let have_seen_ptr = move |ptr| { unsafe { Gecko_HaveSeenPtr(seen_ptrs, ptr) } };
|
|
let mut ops = MallocSizeOfOps::new(malloc_size_of.unwrap(),
|
|
Some(malloc_enclosing_size_of.unwrap()),
|
|
Some(Box::new(have_seen_ptr)));
|
|
(*data).size_of_excluding_cvs(&mut ops)
|
|
} else {
|
|
0
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_HasPrimaryComputedValues(element: RawGeckoElementBorrowed) -> bool
|
|
{
|
|
let element = GeckoElement(element);
|
|
let data = element.borrow_data().expect("Looking for CVs on unstyled element");
|
|
data.has_styles()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_GetPrimaryComputedValues(element: RawGeckoElementBorrowed)
|
|
-> ServoStyleContextStrong
|
|
{
|
|
let element = GeckoElement(element);
|
|
let data = element.borrow_data().expect("Getting CVs on unstyled element");
|
|
data.styles.primary().clone().into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_HasPseudoComputedValues(element: RawGeckoElementBorrowed,
|
|
index: usize) -> bool
|
|
{
|
|
let element = GeckoElement(element);
|
|
let data = element.borrow_data().expect("Looking for CVs on unstyled element");
|
|
data.styles.pseudos.as_array()[index].is_some()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_GetPseudoComputedValues(element: RawGeckoElementBorrowed,
|
|
index: usize) -> ServoStyleContextStrong
|
|
{
|
|
let element = GeckoElement(element);
|
|
let data = element.borrow_data().expect("Getting CVs that aren't present");
|
|
data.styles.pseudos.as_array()[index].as_ref().expect("Getting CVs that aren't present")
|
|
.clone().into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_IsDisplayNone(element: RawGeckoElementBorrowed) -> bool {
|
|
let element = GeckoElement(element);
|
|
let data = element.borrow_data().expect("Invoking Servo_Element_IsDisplayNone on unstyled element");
|
|
data.styles.is_display_none()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Element_IsPrimaryStyleReusedViaRuleNode(element: RawGeckoElementBorrowed) -> bool {
|
|
let element = GeckoElement(element);
|
|
let data = element.borrow_data()
|
|
.expect("Invoking Servo_Element_IsPrimaryStyleReusedViaRuleNode on unstyled element");
|
|
data.flags.contains(data::ElementDataFlags::PRIMARY_STYLE_REUSED_VIA_RULE_NODE)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_Empty(mode: SheetParsingMode) -> RawServoStyleSheetContentsStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let origin = match mode {
|
|
SheetParsingMode::eAuthorSheetFeatures => Origin::Author,
|
|
SheetParsingMode::eUserSheetFeatures => Origin::User,
|
|
SheetParsingMode::eAgentSheetFeatures => Origin::UserAgent,
|
|
SheetParsingMode::eSafeAgentSheetFeatures => Origin::UserAgent,
|
|
};
|
|
let shared_lock = &global_style_data.shared_lock;
|
|
Arc::new(
|
|
StylesheetContents::from_str(
|
|
"",
|
|
unsafe { dummy_url_data() }.clone(),
|
|
origin,
|
|
shared_lock,
|
|
/* loader = */ None,
|
|
&NullReporter,
|
|
QuirksMode::NoQuirks,
|
|
0
|
|
)
|
|
).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_FromUTF8Bytes(
|
|
loader: *mut Loader,
|
|
stylesheet: *mut ServoStyleSheet,
|
|
data: *const u8,
|
|
data_len: usize,
|
|
mode: SheetParsingMode,
|
|
extra_data: *mut URLExtraData,
|
|
line_number_offset: u32,
|
|
quirks_mode: nsCompatibility,
|
|
reusable_sheets: *mut LoaderReusableStyleSheets
|
|
) -> RawServoStyleSheetContentsStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let input = unsafe { ::std::str::from_utf8_unchecked(::std::slice::from_raw_parts(data, data_len)) };
|
|
|
|
let origin = match mode {
|
|
SheetParsingMode::eAuthorSheetFeatures => Origin::Author,
|
|
SheetParsingMode::eUserSheetFeatures => Origin::User,
|
|
SheetParsingMode::eAgentSheetFeatures => Origin::UserAgent,
|
|
SheetParsingMode::eSafeAgentSheetFeatures => Origin::UserAgent,
|
|
};
|
|
|
|
let reporter = ErrorReporter::new(stylesheet, loader, extra_data);
|
|
let url_data = unsafe { RefPtr::from_ptr_ref(&extra_data) };
|
|
let loader = if loader.is_null() {
|
|
None
|
|
} else {
|
|
Some(StylesheetLoader::new(loader, stylesheet, reusable_sheets))
|
|
};
|
|
|
|
// FIXME(emilio): loader.as_ref() doesn't typecheck for some reason?
|
|
let loader: Option<&StyleStylesheetLoader> = match loader {
|
|
None => None,
|
|
Some(ref s) => Some(s),
|
|
};
|
|
|
|
|
|
Arc::new(StylesheetContents::from_str(
|
|
input, url_data.clone(), origin,
|
|
&global_style_data.shared_lock, loader, &reporter,
|
|
quirks_mode.into(), line_number_offset)
|
|
).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_AppendStyleSheet(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
sheet: *const ServoStyleSheet,
|
|
) {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let data = &mut *data;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let sheet = unsafe { GeckoStyleSheet::new(sheet) };
|
|
data.stylist.append_stylesheet(sheet, &guard);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_MediumFeaturesChanged(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
viewport_units_used: *mut bool,
|
|
) -> u8 {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
|
|
// NOTE(emilio): We don't actually need to flush the stylist here and ensure
|
|
// it's up to date.
|
|
//
|
|
// In case it isn't we would trigger a rebuild + restyle as needed too.
|
|
//
|
|
// We need to ensure the default computed values are up to date though,
|
|
// because those can influence the result of media query evaluation.
|
|
//
|
|
// FIXME(emilio, bug 1369984): do the computation conditionally, to do it
|
|
// less often.
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
|
|
unsafe {
|
|
*viewport_units_used = data.stylist.device().used_viewport_size();
|
|
}
|
|
data.stylist.device_mut().reset_computed_values();
|
|
let guards = StylesheetGuards::same(&guard);
|
|
let origins_in_which_rules_changed =
|
|
data.stylist.media_features_change_changed_style(&guards);
|
|
|
|
// We'd like to return `OriginFlags` 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, so for now just unwrap it.
|
|
OriginFlags::from(origins_in_which_rules_changed).0
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_SetDevice(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
pres_context: RawGeckoPresContextOwned
|
|
) -> u8 {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let device = Device::new(pres_context);
|
|
let guards = StylesheetGuards::same(&guard);
|
|
let origins_in_which_rules_changed =
|
|
data.stylist.set_device(device, &guards);
|
|
|
|
// We'd like to return `OriginFlags` 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, so for now just unwrap it.
|
|
OriginFlags::from(origins_in_which_rules_changed).0
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_PrependStyleSheet(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
sheet: *const ServoStyleSheet,
|
|
) {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let data = &mut *data;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let sheet = unsafe { GeckoStyleSheet::new(sheet) };
|
|
data.stylist.prepend_stylesheet(sheet, &guard);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_InsertStyleSheetBefore(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
sheet: *const ServoStyleSheet,
|
|
before_sheet: *const ServoStyleSheet
|
|
) {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let data = &mut *data;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let sheet = unsafe { GeckoStyleSheet::new(sheet) };
|
|
data.stylist.insert_stylesheet_before(
|
|
sheet,
|
|
unsafe { GeckoStyleSheet::new(before_sheet) },
|
|
&guard,
|
|
);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_RemoveStyleSheet(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
sheet: *const ServoStyleSheet
|
|
) {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let data = &mut *data;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let sheet = unsafe { GeckoStyleSheet::new(sheet) };
|
|
data.stylist.remove_stylesheet(sheet, &guard);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_FlushStyleSheets(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
doc_element: RawGeckoElementBorrowedOrNull,
|
|
) {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let doc_element = doc_element.map(GeckoElement);
|
|
let have_invalidations = data.flush_stylesheets(&guard, doc_element);
|
|
if have_invalidations && doc_element.is_some() {
|
|
// The invalidation machinery propagates the bits up, but we still
|
|
// need to tell the gecko restyle root machinery about it.
|
|
unsafe {
|
|
bindings::Gecko_NoteDirtySubtreeForInvalidation(doc_element.unwrap().0);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_NoteStyleSheetsChanged(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
author_style_disabled: bool,
|
|
changed_origins: OriginFlags,
|
|
) {
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
data.stylist.force_stylesheet_origins_dirty(OriginSet::from(changed_origins));
|
|
data.stylist.set_author_style_disabled(author_style_disabled);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_HasRules(
|
|
raw_contents: RawServoStyleSheetContentsBorrowed
|
|
) -> bool {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
!StylesheetContents::as_arc(&raw_contents)
|
|
.rules.read_with(&guard).0.is_empty()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_GetRules(
|
|
sheet: RawServoStyleSheetContentsBorrowed
|
|
) -> ServoCssRulesStrong {
|
|
StylesheetContents::as_arc(&sheet).rules.clone().into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_Clone(
|
|
raw_sheet: RawServoStyleSheetContentsBorrowed,
|
|
reference_sheet: *const ServoStyleSheet,
|
|
) -> RawServoStyleSheetContentsStrong {
|
|
use style::shared_lock::{DeepCloneParams, DeepCloneWithLock};
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let contents = StylesheetContents::as_arc(&raw_sheet);
|
|
let params = DeepCloneParams { reference_sheet };
|
|
|
|
Arc::new(contents.deep_clone_with_lock(
|
|
&global_style_data.shared_lock,
|
|
&guard,
|
|
¶ms,
|
|
)).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_SizeOfIncludingThis(
|
|
malloc_size_of: GeckoMallocSizeOf,
|
|
malloc_enclosing_size_of: GeckoMallocSizeOf,
|
|
sheet: RawServoStyleSheetContentsBorrowed
|
|
) -> usize {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let mut ops = MallocSizeOfOps::new(malloc_size_of.unwrap(),
|
|
Some(malloc_enclosing_size_of.unwrap()),
|
|
None);
|
|
StylesheetContents::as_arc(&sheet).size_of(&guard, &mut ops)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_GetOrigin(
|
|
sheet: RawServoStyleSheetContentsBorrowed
|
|
) -> u8 {
|
|
let origin = match StylesheetContents::as_arc(&sheet).origin {
|
|
Origin::UserAgent => OriginFlags_UserAgent,
|
|
Origin::User => OriginFlags_User,
|
|
Origin::Author => OriginFlags_Author,
|
|
};
|
|
// We'd like to return `OriginFlags` 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, so for now just unwrap it.
|
|
origin.0
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_GetSourceMapURL(
|
|
sheet: RawServoStyleSheetContentsBorrowed,
|
|
result: *mut nsAString
|
|
) {
|
|
let contents = StylesheetContents::as_arc(&sheet);
|
|
let url_opt = contents.source_map_url.read();
|
|
if let Some(ref url) = *url_opt {
|
|
write!(unsafe { &mut *result }, "{}", url).unwrap();
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSheet_GetSourceURL(
|
|
sheet: RawServoStyleSheetContentsBorrowed,
|
|
result: *mut nsAString
|
|
) {
|
|
let contents = StylesheetContents::as_arc(&sheet);
|
|
let url_opt = contents.source_url.read();
|
|
if let Some(ref url) = *url_opt {
|
|
write!(unsafe { &mut *result }, "{}", url).unwrap();
|
|
}
|
|
}
|
|
|
|
fn read_locked_arc<T, R, F>(raw: &<Locked<T> as HasFFI>::FFIType, func: F) -> R
|
|
where Locked<T>: HasArcFFI, F: FnOnce(&T) -> R
|
|
{
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
func(Locked::<T>::as_arc(&raw).read_with(&guard))
|
|
}
|
|
|
|
#[cfg(debug_assertions)]
|
|
unsafe fn read_locked_arc_unchecked<T, R, F>(raw: &<Locked<T> as HasFFI>::FFIType, func: F) -> R
|
|
where Locked<T>: HasArcFFI, F: FnOnce(&T) -> R
|
|
{
|
|
read_locked_arc(raw, func)
|
|
}
|
|
|
|
#[cfg(not(debug_assertions))]
|
|
unsafe fn read_locked_arc_unchecked<T, R, F>(raw: &<Locked<T> as HasFFI>::FFIType, func: F) -> R
|
|
where Locked<T>: HasArcFFI, F: FnOnce(&T) -> R
|
|
{
|
|
func(Locked::<T>::as_arc(&raw).read_unchecked())
|
|
}
|
|
|
|
fn write_locked_arc<T, R, F>(raw: &<Locked<T> as HasFFI>::FFIType, func: F) -> R
|
|
where Locked<T>: HasArcFFI, F: FnOnce(&mut T) -> R
|
|
{
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let mut guard = global_style_data.shared_lock.write();
|
|
func(Locked::<T>::as_arc(&raw).write_with(&mut guard))
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_CssRules_ListTypes(rules: ServoCssRulesBorrowed,
|
|
result: nsTArrayBorrowed_uintptr_t) {
|
|
read_locked_arc(rules, |rules: &CssRules| {
|
|
let iter = rules.0.iter().map(|rule| rule.rule_type() as usize);
|
|
let (size, upper) = iter.size_hint();
|
|
debug_assert_eq!(size, upper.unwrap());
|
|
unsafe { result.set_len(size as u32) };
|
|
result.iter_mut().zip(iter).fold((), |_, (r, v)| *r = v);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_CssRules_InsertRule(
|
|
rules: ServoCssRulesBorrowed,
|
|
contents: RawServoStyleSheetContentsBorrowed,
|
|
rule: *const nsACString,
|
|
index: u32,
|
|
nested: bool,
|
|
loader: *mut Loader,
|
|
gecko_stylesheet: *mut ServoStyleSheet,
|
|
rule_type: *mut u16,
|
|
) -> nsresult {
|
|
let loader = if loader.is_null() {
|
|
None
|
|
} else {
|
|
Some(StylesheetLoader::new(loader, gecko_stylesheet, ptr::null_mut()))
|
|
};
|
|
let loader = loader.as_ref().map(|loader| loader as &StyleStylesheetLoader);
|
|
let rule = unsafe { rule.as_ref().unwrap().as_str_unchecked() };
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let contents = StylesheetContents::as_arc(&contents);
|
|
let result = Locked::<CssRules>::as_arc(&rules).insert_rule(
|
|
&global_style_data.shared_lock,
|
|
rule,
|
|
contents,
|
|
index as usize,
|
|
nested,
|
|
loader
|
|
);
|
|
|
|
match result {
|
|
Ok(new_rule) => {
|
|
*unsafe { rule_type.as_mut().unwrap() } = new_rule.rule_type() as u16;
|
|
nsresult::NS_OK
|
|
}
|
|
Err(err) => err.into(),
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_CssRules_DeleteRule(
|
|
rules: ServoCssRulesBorrowed,
|
|
index: u32
|
|
) -> nsresult {
|
|
write_locked_arc(rules, |rules: &mut CssRules| {
|
|
match rules.remove_rule(index as usize) {
|
|
Ok(_) => nsresult::NS_OK,
|
|
Err(err) => err.into()
|
|
}
|
|
})
|
|
}
|
|
|
|
macro_rules! impl_basic_rule_funcs_without_getter {
|
|
{ ($rule_type:ty, $raw_type:ty),
|
|
debug: $debug:ident,
|
|
to_css: $to_css:ident,
|
|
} => {
|
|
#[no_mangle]
|
|
pub extern "C" fn $debug(rule: &$raw_type, result: *mut nsACString) {
|
|
read_locked_arc(rule, |rule: &$rule_type| {
|
|
write!(unsafe { result.as_mut().unwrap() }, "{:?}", *rule).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn $to_css(rule: &$raw_type, result: *mut nsAString) {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let rule = Locked::<$rule_type>::as_arc(&rule);
|
|
rule.read_with(&guard).to_css(&guard, unsafe { result.as_mut().unwrap() }).unwrap();
|
|
}
|
|
}
|
|
}
|
|
|
|
macro_rules! impl_basic_rule_funcs {
|
|
{ ($name:ident, $rule_type:ty, $raw_type:ty),
|
|
getter: $getter:ident,
|
|
debug: $debug:ident,
|
|
to_css: $to_css:ident,
|
|
} => {
|
|
#[no_mangle]
|
|
pub extern "C" fn $getter(rules: ServoCssRulesBorrowed, index: u32,
|
|
line: *mut u32, column: *mut u32)
|
|
-> Strong<$raw_type> {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let rules = Locked::<CssRules>::as_arc(&rules).read_with(&guard);
|
|
let index = index as usize;
|
|
|
|
if index >= rules.0.len() {
|
|
return Strong::null();
|
|
}
|
|
|
|
match rules.0[index] {
|
|
CssRule::$name(ref rule) => {
|
|
let location = rule.read_with(&guard).source_location;
|
|
*unsafe { line.as_mut().unwrap() } = location.line as u32;
|
|
*unsafe { column.as_mut().unwrap() } = location.column as u32;
|
|
rule.clone().into_strong()
|
|
},
|
|
_ => {
|
|
Strong::null()
|
|
}
|
|
}
|
|
}
|
|
|
|
impl_basic_rule_funcs_without_getter! { ($rule_type, $raw_type),
|
|
debug: $debug,
|
|
to_css: $to_css,
|
|
}
|
|
}
|
|
}
|
|
|
|
macro_rules! impl_group_rule_funcs {
|
|
{ ($name:ident, $rule_type:ty, $raw_type:ty),
|
|
get_rules: $get_rules:ident,
|
|
$($basic:tt)+
|
|
} => {
|
|
impl_basic_rule_funcs! { ($name, $rule_type, $raw_type), $($basic)+ }
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn $get_rules(rule: &$raw_type) -> ServoCssRulesStrong {
|
|
read_locked_arc(rule, |rule: &$rule_type| {
|
|
rule.rules.clone().into_strong()
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
impl_basic_rule_funcs! { (Style, StyleRule, RawServoStyleRule),
|
|
getter: Servo_CssRules_GetStyleRuleAt,
|
|
debug: Servo_StyleRule_Debug,
|
|
to_css: Servo_StyleRule_GetCssText,
|
|
}
|
|
|
|
impl_basic_rule_funcs! { (Import, ImportRule, RawServoImportRule),
|
|
getter: Servo_CssRules_GetImportRuleAt,
|
|
debug: Servo_ImportRule_Debug,
|
|
to_css: Servo_ImportRule_GetCssText,
|
|
}
|
|
|
|
impl_basic_rule_funcs_without_getter! { (Keyframe, RawServoKeyframe),
|
|
debug: Servo_Keyframe_Debug,
|
|
to_css: Servo_Keyframe_GetCssText,
|
|
}
|
|
|
|
impl_basic_rule_funcs! { (Keyframes, KeyframesRule, RawServoKeyframesRule),
|
|
getter: Servo_CssRules_GetKeyframesRuleAt,
|
|
debug: Servo_KeyframesRule_Debug,
|
|
to_css: Servo_KeyframesRule_GetCssText,
|
|
}
|
|
|
|
impl_group_rule_funcs! { (Media, MediaRule, RawServoMediaRule),
|
|
get_rules: Servo_MediaRule_GetRules,
|
|
getter: Servo_CssRules_GetMediaRuleAt,
|
|
debug: Servo_MediaRule_Debug,
|
|
to_css: Servo_MediaRule_GetCssText,
|
|
}
|
|
|
|
impl_basic_rule_funcs! { (Namespace, NamespaceRule, RawServoNamespaceRule),
|
|
getter: Servo_CssRules_GetNamespaceRuleAt,
|
|
debug: Servo_NamespaceRule_Debug,
|
|
to_css: Servo_NamespaceRule_GetCssText,
|
|
}
|
|
|
|
impl_basic_rule_funcs! { (Page, PageRule, RawServoPageRule),
|
|
getter: Servo_CssRules_GetPageRuleAt,
|
|
debug: Servo_PageRule_Debug,
|
|
to_css: Servo_PageRule_GetCssText,
|
|
}
|
|
|
|
impl_group_rule_funcs! { (Supports, SupportsRule, RawServoSupportsRule),
|
|
get_rules: Servo_SupportsRule_GetRules,
|
|
getter: Servo_CssRules_GetSupportsRuleAt,
|
|
debug: Servo_SupportsRule_Debug,
|
|
to_css: Servo_SupportsRule_GetCssText,
|
|
}
|
|
|
|
impl_group_rule_funcs! { (Document, DocumentRule, RawServoDocumentRule),
|
|
get_rules: Servo_DocumentRule_GetRules,
|
|
getter: Servo_CssRules_GetDocumentRuleAt,
|
|
debug: Servo_DocumentRule_Debug,
|
|
to_css: Servo_DocumentRule_GetCssText,
|
|
}
|
|
|
|
impl_basic_rule_funcs! { (FontFeatureValues, FontFeatureValuesRule, RawServoFontFeatureValuesRule),
|
|
getter: Servo_CssRules_GetFontFeatureValuesRuleAt,
|
|
debug: Servo_FontFeatureValuesRule_Debug,
|
|
to_css: Servo_FontFeatureValuesRule_GetCssText,
|
|
}
|
|
|
|
macro_rules! impl_getter_for_embedded_rule {
|
|
($getter:ident: $name:ident -> $ty:ty) => {
|
|
#[no_mangle]
|
|
pub extern "C" fn $getter(rules: ServoCssRulesBorrowed, index: u32) -> *mut $ty
|
|
{
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let rules = Locked::<CssRules>::as_arc(&rules).read_with(&guard);
|
|
match rules.0[index as usize] {
|
|
CssRule::$name(ref rule) => rule.read_with(&guard).get(),
|
|
_ => unreachable!(concat!(stringify!($getter), " should only be called on a ",
|
|
stringify!($name), " rule")),
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl_getter_for_embedded_rule!(Servo_CssRules_GetFontFaceRuleAt:
|
|
FontFace -> nsCSSFontFaceRule);
|
|
impl_getter_for_embedded_rule!(Servo_CssRules_GetCounterStyleRuleAt:
|
|
CounterStyle -> nsCSSCounterStyleRule);
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleRule_GetStyle(rule: RawServoStyleRuleBorrowed) -> RawServoDeclarationBlockStrong {
|
|
read_locked_arc(rule, |rule: &StyleRule| {
|
|
rule.block.clone().into_strong()
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleRule_SetStyle(rule: RawServoStyleRuleBorrowed,
|
|
declarations: RawServoDeclarationBlockBorrowed) {
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
write_locked_arc(rule, |rule: &mut StyleRule| {
|
|
rule.block = declarations.clone_arc();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleRule_GetSelectorText(rule: RawServoStyleRuleBorrowed, result: *mut nsAString) {
|
|
read_locked_arc(rule, |rule: &StyleRule| {
|
|
rule.selectors.to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleRule_GetSelectorTextAtIndex(rule: RawServoStyleRuleBorrowed,
|
|
index: u32,
|
|
result: *mut nsAString) {
|
|
read_locked_arc(rule, |rule: &StyleRule| {
|
|
let index = index as usize;
|
|
if index >= rule.selectors.0.len() {
|
|
return;
|
|
}
|
|
rule.selectors.0[index].to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleRule_GetSelectorCount(rule: RawServoStyleRuleBorrowed, count: *mut u32) {
|
|
read_locked_arc(rule, |rule: &StyleRule| {
|
|
*unsafe { count.as_mut().unwrap() } = rule.selectors.0.len() as u32;
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleRule_GetSpecificityAtIndex(
|
|
rule: RawServoStyleRuleBorrowed,
|
|
index: u32,
|
|
specificity: *mut u64
|
|
) {
|
|
read_locked_arc(rule, |rule: &StyleRule| {
|
|
let specificity = unsafe { specificity.as_mut().unwrap() };
|
|
let index = index as usize;
|
|
if index >= rule.selectors.0.len() {
|
|
*specificity = 0;
|
|
return;
|
|
}
|
|
*specificity = rule.selectors.0[index].specificity() as u64;
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleRule_SelectorMatchesElement(rule: RawServoStyleRuleBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
index: u32,
|
|
pseudo_type: CSSPseudoElementType) -> bool {
|
|
read_locked_arc(rule, |rule: &StyleRule| {
|
|
let index = index as usize;
|
|
if index >= rule.selectors.0.len() {
|
|
return false;
|
|
}
|
|
|
|
let selector = &rule.selectors.0[index];
|
|
let mut matching_mode = MatchingMode::Normal;
|
|
|
|
match PseudoElement::from_pseudo_type(pseudo_type) {
|
|
Some(pseudo) => {
|
|
// We need to make sure that the requested pseudo element type
|
|
// matches the selector pseudo element type before proceeding.
|
|
match selector.pseudo_element() {
|
|
Some(selector_pseudo) if *selector_pseudo == pseudo => {
|
|
matching_mode = MatchingMode::ForStatelessPseudoElement
|
|
},
|
|
_ => return false,
|
|
};
|
|
},
|
|
None => {
|
|
// Do not attempt to match if a pseudo element is requested and
|
|
// this is not a pseudo element selector, or vice versa.
|
|
if selector.has_pseudo_element() {
|
|
return false;
|
|
}
|
|
},
|
|
};
|
|
|
|
let element = GeckoElement(element);
|
|
let quirks_mode = element.as_node().owner_doc().quirks_mode();
|
|
let mut ctx =
|
|
MatchingContext::new(matching_mode, None, None, quirks_mode);
|
|
matches_selector(selector, 0, None, &element, &mut ctx, &mut |_, _| {})
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SelectorList_Closest(
|
|
element: RawGeckoElementBorrowed,
|
|
selectors: RawServoSelectorListBorrowed,
|
|
) -> *const structs::RawGeckoElement {
|
|
use std::borrow::Borrow;
|
|
use style::dom_apis;
|
|
|
|
let element = GeckoElement(element);
|
|
let quirks_mode = element.as_node().owner_doc().quirks_mode();
|
|
let selectors = ::selectors::SelectorList::from_ffi(selectors).borrow();
|
|
|
|
dom_apis::element_closest(element, &selectors, quirks_mode)
|
|
.map_or(ptr::null(), |e| e.0)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SelectorList_Matches(
|
|
element: RawGeckoElementBorrowed,
|
|
selectors: RawServoSelectorListBorrowed,
|
|
) -> bool {
|
|
use std::borrow::Borrow;
|
|
use style::dom_apis;
|
|
|
|
let element = GeckoElement(element);
|
|
let quirks_mode = element.as_node().owner_doc().quirks_mode();
|
|
let selectors = ::selectors::SelectorList::from_ffi(selectors).borrow();
|
|
dom_apis::element_matches(
|
|
&element,
|
|
&selectors,
|
|
quirks_mode,
|
|
)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SelectorList_QueryFirst(
|
|
node: RawGeckoNodeBorrowed,
|
|
selectors: RawServoSelectorListBorrowed,
|
|
may_use_invalidation: bool,
|
|
) -> *const structs::RawGeckoElement {
|
|
use std::borrow::Borrow;
|
|
use style::dom_apis::{self, MayUseInvalidation, QueryFirst};
|
|
|
|
let node = GeckoNode(node);
|
|
let selectors = ::selectors::SelectorList::from_ffi(selectors).borrow();
|
|
let mut result = None;
|
|
|
|
let may_use_invalidation =
|
|
if may_use_invalidation {
|
|
MayUseInvalidation::Yes
|
|
} else {
|
|
MayUseInvalidation::No
|
|
};
|
|
|
|
dom_apis::query_selector::<GeckoElement, QueryFirst>(
|
|
node,
|
|
&selectors,
|
|
&mut result,
|
|
may_use_invalidation,
|
|
);
|
|
|
|
result.map_or(ptr::null(), |e| e.0)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SelectorList_QueryAll(
|
|
node: RawGeckoNodeBorrowed,
|
|
selectors: RawServoSelectorListBorrowed,
|
|
content_list: *mut structs::nsSimpleContentList,
|
|
may_use_invalidation: bool,
|
|
) {
|
|
use smallvec::SmallVec;
|
|
use std::borrow::Borrow;
|
|
use style::dom_apis::{self, MayUseInvalidation, QueryAll};
|
|
|
|
let node = GeckoNode(node);
|
|
let selectors = ::selectors::SelectorList::from_ffi(selectors).borrow();
|
|
let mut result = SmallVec::new();
|
|
|
|
let may_use_invalidation =
|
|
if may_use_invalidation {
|
|
MayUseInvalidation::Yes
|
|
} else {
|
|
MayUseInvalidation::No
|
|
};
|
|
|
|
dom_apis::query_selector::<GeckoElement, QueryAll>(
|
|
node,
|
|
&selectors,
|
|
&mut result,
|
|
may_use_invalidation,
|
|
);
|
|
|
|
if !result.is_empty() {
|
|
// NOTE(emilio): This relies on a slice of GeckoElement having the same
|
|
// memory representation than a slice of element pointers.
|
|
bindings::Gecko_ContentList_AppendAll(
|
|
content_list,
|
|
result.as_ptr() as *mut *const _,
|
|
result.len(),
|
|
)
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ImportRule_GetHref(rule: RawServoImportRuleBorrowed, result: *mut nsAString) {
|
|
read_locked_arc(rule, |rule: &ImportRule| {
|
|
write!(unsafe { &mut *result }, "{}", rule.url.as_str()).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ImportRule_GetSheet(
|
|
rule: RawServoImportRuleBorrowed
|
|
) -> *const ServoStyleSheet {
|
|
read_locked_arc(rule, |rule: &ImportRule| {
|
|
rule.stylesheet.0.raw() as *const ServoStyleSheet
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Keyframe_GetKeyText(
|
|
keyframe: RawServoKeyframeBorrowed,
|
|
result: *mut nsAString
|
|
) {
|
|
read_locked_arc(keyframe, |keyframe: &Keyframe| {
|
|
keyframe.selector.to_css(unsafe { result.as_mut().unwrap() }).unwrap()
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Keyframe_SetKeyText(keyframe: RawServoKeyframeBorrowed, text: *const nsACString) -> bool {
|
|
let text = unsafe { text.as_ref().unwrap().as_str_unchecked() };
|
|
let mut input = ParserInput::new(&text);
|
|
if let Ok(selector) = Parser::new(&mut input).parse_entirely(KeyframeSelector::parse) {
|
|
write_locked_arc(keyframe, |keyframe: &mut Keyframe| {
|
|
keyframe.selector = selector;
|
|
});
|
|
true
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Keyframe_GetStyle(keyframe: RawServoKeyframeBorrowed) -> RawServoDeclarationBlockStrong {
|
|
read_locked_arc(keyframe, |keyframe: &Keyframe| keyframe.block.clone().into_strong())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_Keyframe_SetStyle(keyframe: RawServoKeyframeBorrowed,
|
|
declarations: RawServoDeclarationBlockBorrowed) {
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
write_locked_arc(keyframe, |keyframe: &mut Keyframe| {
|
|
keyframe.block = declarations.clone_arc();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_KeyframesRule_GetName(rule: RawServoKeyframesRuleBorrowed) -> *mut nsAtom {
|
|
read_locked_arc(rule, |rule: &KeyframesRule| rule.name.as_atom().as_ptr())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_KeyframesRule_SetName(rule: RawServoKeyframesRuleBorrowed, name: *mut nsAtom) {
|
|
write_locked_arc(rule, |rule: &mut KeyframesRule| {
|
|
rule.name = KeyframesName::Ident(CustomIdent(unsafe { Atom::from_addrefed(name) }));
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_KeyframesRule_GetCount(rule: RawServoKeyframesRuleBorrowed) -> u32 {
|
|
read_locked_arc(rule, |rule: &KeyframesRule| rule.keyframes.len() as u32)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_KeyframesRule_GetKeyframeAt(rule: RawServoKeyframesRuleBorrowed, index: u32,
|
|
line: *mut u32, column: *mut u32) -> RawServoKeyframeStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let key = Locked::<KeyframesRule>::as_arc(&rule).read_with(&guard)
|
|
.keyframes[index as usize].clone();
|
|
let location = key.read_with(&guard).source_location;
|
|
*unsafe { line.as_mut().unwrap() } = location.line as u32;
|
|
*unsafe { column.as_mut().unwrap() } = location.column as u32;
|
|
key.into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_KeyframesRule_FindRule(rule: RawServoKeyframesRuleBorrowed,
|
|
key: *const nsACString) -> u32 {
|
|
let key = unsafe { key.as_ref().unwrap().as_str_unchecked() };
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
Locked::<KeyframesRule>::as_arc(&rule).read_with(&guard)
|
|
.find_rule(&guard, key).map(|index| index as u32)
|
|
.unwrap_or(u32::max_value())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_KeyframesRule_AppendRule(
|
|
rule: RawServoKeyframesRuleBorrowed,
|
|
contents: RawServoStyleSheetContentsBorrowed,
|
|
css: *const nsACString
|
|
) -> bool {
|
|
let css = unsafe { css.as_ref().unwrap().as_str_unchecked() };
|
|
let contents = StylesheetContents::as_arc(&contents);
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
|
|
match Keyframe::parse(css, &contents, &global_style_data.shared_lock) {
|
|
Ok(keyframe) => {
|
|
write_locked_arc(rule, |rule: &mut KeyframesRule| {
|
|
rule.keyframes.push(keyframe);
|
|
});
|
|
true
|
|
}
|
|
Err(..) => false,
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_KeyframesRule_DeleteRule(rule: RawServoKeyframesRuleBorrowed, index: u32) {
|
|
write_locked_arc(rule, |rule: &mut KeyframesRule| {
|
|
rule.keyframes.remove(index as usize);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaRule_GetMedia(rule: RawServoMediaRuleBorrowed) -> RawServoMediaListStrong {
|
|
read_locked_arc(rule, |rule: &MediaRule| {
|
|
rule.media_queries.clone().into_strong()
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_NamespaceRule_GetPrefix(rule: RawServoNamespaceRuleBorrowed) -> *mut nsAtom {
|
|
read_locked_arc(rule, |rule: &NamespaceRule| {
|
|
rule.prefix.as_ref().unwrap_or(&atom!("")).as_ptr()
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_NamespaceRule_GetURI(rule: RawServoNamespaceRuleBorrowed) -> *mut nsAtom {
|
|
read_locked_arc(rule, |rule: &NamespaceRule| rule.url.0.as_ptr())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_PageRule_GetStyle(rule: RawServoPageRuleBorrowed) -> RawServoDeclarationBlockStrong {
|
|
read_locked_arc(rule, |rule: &PageRule| {
|
|
rule.block.clone().into_strong()
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_PageRule_SetStyle(rule: RawServoPageRuleBorrowed,
|
|
declarations: RawServoDeclarationBlockBorrowed) {
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
write_locked_arc(rule, |rule: &mut PageRule| {
|
|
rule.block = declarations.clone_arc();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_SupportsRule_GetConditionText(rule: RawServoSupportsRuleBorrowed,
|
|
result: *mut nsAString) {
|
|
read_locked_arc(rule, |rule: &SupportsRule| {
|
|
rule.condition.to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DocumentRule_GetConditionText(rule: RawServoDocumentRuleBorrowed,
|
|
result: *mut nsAString) {
|
|
read_locked_arc(rule, |rule: &DocumentRule| {
|
|
rule.condition.to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_FontFeatureValuesRule_GetFontFamily(rule: RawServoFontFeatureValuesRuleBorrowed,
|
|
result: *mut nsAString) {
|
|
read_locked_arc(rule, |rule: &FontFeatureValuesRule| {
|
|
rule.font_family_to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_FontFeatureValuesRule_GetValueText(rule: RawServoFontFeatureValuesRuleBorrowed,
|
|
result: *mut nsAString) {
|
|
read_locked_arc(rule, |rule: &FontFeatureValuesRule| {
|
|
rule.value_to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_GetForAnonymousBox(parent_style_or_null: ServoStyleContextBorrowedOrNull,
|
|
pseudo_tag: *mut nsAtom,
|
|
raw_data: RawServoStyleSetBorrowed)
|
|
-> ServoStyleContextStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let guards = StylesheetGuards::same(&guard);
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let atom = Atom::from(pseudo_tag);
|
|
let pseudo = PseudoElement::from_anon_box_atom(&atom)
|
|
.expect("Not an anon box pseudo?");
|
|
|
|
let metrics = get_metrics_provider_for_product();
|
|
|
|
// If the pseudo element is PageContent, we should append the precomputed
|
|
// pseudo element declerations with specified page rules.
|
|
let page_decls = match pseudo {
|
|
PseudoElement::PageContent => {
|
|
let mut declarations = vec![];
|
|
let iter = data.stylist.iter_extra_data_origins_rev();
|
|
for (data, origin) in iter {
|
|
let level = match origin {
|
|
Origin::UserAgent => CascadeLevel::UANormal,
|
|
Origin::User => CascadeLevel::UserNormal,
|
|
Origin::Author => CascadeLevel::AuthorNormal,
|
|
};
|
|
for rule in data.pages.iter() {
|
|
declarations.push(ApplicableDeclarationBlock::from_declarations(
|
|
rule.read_with(level.guard(&guards)).block.clone(),
|
|
level
|
|
));
|
|
}
|
|
}
|
|
Some(declarations)
|
|
},
|
|
_ => None,
|
|
};
|
|
|
|
let rule_node = data.stylist.rule_node_for_precomputed_pseudo(
|
|
&guards,
|
|
&pseudo,
|
|
page_decls,
|
|
);
|
|
|
|
let cascade_flags = CascadeFlags::SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP;
|
|
data.stylist.precomputed_values_for_pseudo_with_rule_node(
|
|
&guards,
|
|
&pseudo,
|
|
parent_style_or_null.map(|x| &*x),
|
|
cascade_flags,
|
|
&metrics,
|
|
rule_node
|
|
).into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ResolvePseudoStyle(element: RawGeckoElementBorrowed,
|
|
pseudo_type: CSSPseudoElementType,
|
|
is_probe: bool,
|
|
inherited_style: ServoStyleContextBorrowedOrNull,
|
|
raw_data: RawServoStyleSetBorrowed)
|
|
-> ServoStyleContextStrong
|
|
{
|
|
let element = GeckoElement(element);
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
|
|
debug!("Servo_ResolvePseudoStyle: {:?} {:?}, is_probe: {}",
|
|
element, PseudoElement::from_pseudo_type(pseudo_type), is_probe);
|
|
|
|
let data = element.borrow_data();
|
|
|
|
let data = match data.as_ref() {
|
|
Some(data) if data.has_styles() => data,
|
|
_ => {
|
|
// FIXME(bholley, emilio): Assert against this.
|
|
//
|
|
// Known offender is nsMathMLmoFrame::MarkIntrinsicISizesDirty,
|
|
// which goes and does a bunch of work involving style resolution.
|
|
//
|
|
// Bug 1403865 tracks fixing it, and potentially adding an assert
|
|
// here instead.
|
|
warn!("Calling Servo_ResolvePseudoStyle on unstyled element");
|
|
return if is_probe {
|
|
Strong::null()
|
|
} else {
|
|
doc_data.default_computed_values().clone().into()
|
|
};
|
|
}
|
|
};
|
|
|
|
let pseudo = PseudoElement::from_pseudo_type(pseudo_type)
|
|
.expect("ResolvePseudoStyle with a non-pseudo?");
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let style = get_pseudo_style(
|
|
&guard,
|
|
element,
|
|
&pseudo,
|
|
RuleInclusion::All,
|
|
&data.styles,
|
|
inherited_style,
|
|
&*doc_data,
|
|
is_probe,
|
|
/* matching_func = */ None,
|
|
);
|
|
|
|
match style {
|
|
Some(s) => s.into(),
|
|
None => {
|
|
debug_assert!(is_probe);
|
|
Strong::null()
|
|
}
|
|
}
|
|
}
|
|
|
|
fn debug_atom_array(atoms: &AtomArray) -> String {
|
|
let mut result = String::from("[");
|
|
for atom in atoms.iter() {
|
|
if atom.mRawPtr.is_null() {
|
|
result += "(null), ";
|
|
} else {
|
|
let atom = unsafe { WeakAtom::new(atom.mRawPtr) };
|
|
write!(result, "{}, ", atom).unwrap();
|
|
}
|
|
}
|
|
result.push(']');
|
|
result
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_ResolveXULTreePseudoStyle(
|
|
element: RawGeckoElementBorrowed,
|
|
pseudo_tag: *mut nsAtom,
|
|
inherited_style: ServoStyleContextBorrowed,
|
|
input_word: *const AtomArray,
|
|
raw_data: RawServoStyleSetBorrowed
|
|
) -> ServoStyleContextStrong {
|
|
let element = GeckoElement(element);
|
|
let data = element.borrow_data()
|
|
.expect("Calling ResolveXULTreePseudoStyle on unstyled element?");
|
|
|
|
let pseudo = unsafe {
|
|
Atom::with(pseudo_tag, |atom| {
|
|
PseudoElement::from_tree_pseudo_atom(atom, Box::new([]))
|
|
}).expect("ResolveXULTreePseudoStyle with a non-tree pseudo?")
|
|
};
|
|
let input_word = unsafe { input_word.as_ref().unwrap() };
|
|
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
|
|
debug!("ResolveXULTreePseudoStyle: {:?} {:?} {}",
|
|
element, pseudo, debug_atom_array(input_word));
|
|
|
|
let matching_fn = |pseudo: &PseudoElement| {
|
|
let args = pseudo.tree_pseudo_args().expect("Not a tree pseudo-element?");
|
|
args.iter().all(|atom| {
|
|
input_word.iter().any(|item| atom.as_ptr() == item.mRawPtr)
|
|
})
|
|
};
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
get_pseudo_style(
|
|
&guard,
|
|
element,
|
|
&pseudo,
|
|
RuleInclusion::All,
|
|
&data.styles,
|
|
Some(inherited_style),
|
|
&*doc_data,
|
|
/* is_probe = */ false,
|
|
Some(&matching_fn),
|
|
).unwrap().into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_SetExplicitStyle(element: RawGeckoElementBorrowed,
|
|
style: ServoStyleContextBorrowed)
|
|
{
|
|
let element = GeckoElement(element);
|
|
debug!("Servo_SetExplicitStyle: {:?}", element);
|
|
// We only support this API for initial styling. There's no reason it couldn't
|
|
// work for other things, we just haven't had a reason to do so.
|
|
debug_assert!(element.get_data().is_none());
|
|
let mut data = unsafe { element.ensure_data() };
|
|
data.styles.primary = Some(unsafe { ArcBorrow::from_ref(style) }.clone_arc());
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_HasAuthorSpecifiedRules(style: ServoStyleContextBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
pseudo_type: CSSPseudoElementType,
|
|
rule_type_mask: u32,
|
|
author_colors_allowed: bool)
|
|
-> bool
|
|
{
|
|
let element = GeckoElement(element);
|
|
let pseudo = PseudoElement::from_pseudo_type(pseudo_type);
|
|
|
|
let guard = (*GLOBAL_STYLE_DATA).shared_lock.read();
|
|
let guards = StylesheetGuards::same(&guard);
|
|
|
|
style.rules().has_author_specified_rules(element,
|
|
pseudo,
|
|
&guards,
|
|
rule_type_mask,
|
|
author_colors_allowed)
|
|
}
|
|
|
|
fn get_pseudo_style(
|
|
guard: &SharedRwLockReadGuard,
|
|
element: GeckoElement,
|
|
pseudo: &PseudoElement,
|
|
rule_inclusion: RuleInclusion,
|
|
styles: &ElementStyles,
|
|
inherited_styles: Option<&ComputedValues>,
|
|
doc_data: &PerDocumentStyleDataImpl,
|
|
is_probe: bool,
|
|
matching_func: Option<&Fn(&PseudoElement) -> bool>,
|
|
) -> Option<Arc<ComputedValues>> {
|
|
let style = match pseudo.cascade_type() {
|
|
PseudoElementCascadeType::Eager => {
|
|
match *pseudo {
|
|
PseudoElement::FirstLetter => {
|
|
styles.pseudos.get(&pseudo).and_then(|pseudo_styles| {
|
|
// inherited_styles can be None when doing lazy resolution
|
|
// (e.g. for computed style) or when probing. In that case
|
|
// we just inherit from our element, which is what Gecko
|
|
// does in that situation. What should actually happen in
|
|
// the computed style case is a bit unclear.
|
|
let inherited_styles =
|
|
inherited_styles.unwrap_or(styles.primary());
|
|
let guards = StylesheetGuards::same(guard);
|
|
let metrics = get_metrics_provider_for_product();
|
|
let inputs = CascadeInputs::new_from_style(pseudo_styles);
|
|
doc_data.stylist
|
|
.compute_pseudo_element_style_with_inputs(
|
|
&inputs,
|
|
pseudo,
|
|
&guards,
|
|
Some(inherited_styles),
|
|
&metrics,
|
|
CascadeFlags::empty(),
|
|
)
|
|
})
|
|
},
|
|
_ => {
|
|
// Unfortunately, we can't assert that inherited_styles, if
|
|
// present, is pointer-equal to styles.primary(), or even
|
|
// equal in any meaningful way. The way it can fail is as
|
|
// follows. Say we append an element with a ::before,
|
|
// ::after, or ::first-line to a parent with a ::first-line,
|
|
// such that the element ends up on the first line of the
|
|
// parent (e.g. it's an inline-block in the case it has a
|
|
// ::first-line, or any container in the ::before/::after
|
|
// cases). Then gecko will update its frame's style to
|
|
// inherit from the parent's ::first-line. The next time we
|
|
// try to get the ::before/::after/::first-line style for
|
|
// the kid, we'll likely pass in the frame's style as
|
|
// inherited_styles, but that's not pointer-identical to
|
|
// styles.primary(), because it got reparented.
|
|
//
|
|
// Now in practice this turns out to be OK, because all the
|
|
// cases in which there's a mismatch go ahead and reparent
|
|
// styles again as needed to make sure the ::first-line
|
|
// affects all the things it should affect. But it makes it
|
|
// impossible to assert anything about the two styles
|
|
// matching here, unfortunately.
|
|
styles.pseudos.get(&pseudo).cloned()
|
|
},
|
|
}
|
|
}
|
|
PseudoElementCascadeType::Precomputed => unreachable!("No anonymous boxes"),
|
|
PseudoElementCascadeType::Lazy => {
|
|
debug_assert!(inherited_styles.is_none() ||
|
|
ptr::eq(inherited_styles.unwrap(),
|
|
&**styles.primary()));
|
|
let base = if pseudo.inherits_from_default_values() {
|
|
doc_data.default_computed_values()
|
|
} else {
|
|
styles.primary()
|
|
};
|
|
let guards = StylesheetGuards::same(guard);
|
|
let metrics = get_metrics_provider_for_product();
|
|
doc_data.stylist
|
|
.lazily_compute_pseudo_element_style(
|
|
&guards,
|
|
&element,
|
|
&pseudo,
|
|
rule_inclusion,
|
|
base,
|
|
is_probe,
|
|
&metrics,
|
|
matching_func,
|
|
)
|
|
},
|
|
};
|
|
|
|
if is_probe {
|
|
return style;
|
|
}
|
|
|
|
Some(style.unwrap_or_else(|| {
|
|
StyleBuilder::for_inheritance(
|
|
doc_data.stylist.device(),
|
|
styles.primary(),
|
|
Some(pseudo),
|
|
).build()
|
|
}))
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_Inherit(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
pseudo_tag: *mut nsAtom,
|
|
parent_style_context: ServoStyleContextBorrowedOrNull,
|
|
target: structs::InheritTarget
|
|
) -> ServoStyleContextStrong {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
|
|
let for_text = target == structs::InheritTarget::Text;
|
|
let atom = Atom::from(pseudo_tag);
|
|
let pseudo = PseudoElement::from_anon_box_atom(&atom)
|
|
.expect("Not an anon-box? Gah!");
|
|
let style = if let Some(reference) = parent_style_context {
|
|
let mut style = StyleBuilder::for_inheritance(
|
|
data.stylist.device(),
|
|
reference,
|
|
Some(&pseudo)
|
|
);
|
|
|
|
if for_text {
|
|
StyleAdjuster::new(&mut style)
|
|
.adjust_for_text();
|
|
}
|
|
|
|
style.build()
|
|
} else {
|
|
debug_assert!(!for_text);
|
|
StyleBuilder::for_derived_style(
|
|
data.stylist.device(),
|
|
data.default_computed_values(),
|
|
/* parent_style = */ None,
|
|
Some(&pseudo),
|
|
).build()
|
|
};
|
|
|
|
style.into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_GetStyleBits(values: ServoStyleContextBorrowed) -> u64 {
|
|
use style::properties::computed_value_flags::ComputedValueFlags;
|
|
// FIXME(emilio): We could do this more efficiently I'm quite sure.
|
|
let flags = values.flags;
|
|
let mut result = 0;
|
|
if flags.contains(ComputedValueFlags::IS_RELEVANT_LINK_VISITED) {
|
|
result |= structs::NS_STYLE_RELEVANT_LINK_VISITED as u64;
|
|
}
|
|
if flags.contains(ComputedValueFlags::HAS_TEXT_DECORATION_LINES) {
|
|
result |= structs::NS_STYLE_HAS_TEXT_DECORATION_LINES as u64;
|
|
}
|
|
if flags.contains(ComputedValueFlags::SHOULD_SUPPRESS_LINEBREAK) {
|
|
result |= structs::NS_STYLE_SUPPRESS_LINEBREAK as u64;
|
|
}
|
|
if flags.contains(ComputedValueFlags::IS_TEXT_COMBINED) {
|
|
result |= structs::NS_STYLE_IS_TEXT_COMBINED as u64;
|
|
}
|
|
if flags.contains(ComputedValueFlags::IS_IN_PSEUDO_ELEMENT_SUBTREE) {
|
|
result |= structs::NS_STYLE_HAS_PSEUDO_ELEMENT_DATA as u64;
|
|
}
|
|
if flags.contains(ComputedValueFlags::IS_IN_DISPLAY_NONE_SUBTREE) {
|
|
result |= structs::NS_STYLE_IN_DISPLAY_NONE_SUBTREE as u64;
|
|
}
|
|
result
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_SpecifiesAnimationsOrTransitions(values: ServoStyleContextBorrowed)
|
|
-> bool {
|
|
let b = values.get_box();
|
|
b.specifies_animations() || b.specifies_transitions()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_EqualCustomProperties(
|
|
first: ServoComputedDataBorrowed,
|
|
second: ServoComputedDataBorrowed
|
|
) -> bool {
|
|
first.custom_properties == second.custom_properties
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputedValues_GetStyleRuleList(values: ServoStyleContextBorrowed,
|
|
rules: RawGeckoServoStyleRuleListBorrowedMut) {
|
|
use smallvec::SmallVec;
|
|
|
|
let rule_node = match values.rules {
|
|
Some(ref r) => r,
|
|
None => return,
|
|
};
|
|
|
|
let mut result = SmallVec::<[_; 10]>::new();
|
|
for node in rule_node.self_and_ancestors() {
|
|
let style_rule = match *node.style_source() {
|
|
StyleSource::Style(ref rule) => rule,
|
|
_ => continue,
|
|
};
|
|
|
|
// For the rules with any important declaration, we insert them into
|
|
// rule tree twice, one for normal level and another for important
|
|
// level. So, we skip the important one to keep the specificity order of
|
|
// rules.
|
|
if node.importance().important() {
|
|
continue;
|
|
}
|
|
|
|
result.push(style_rule);
|
|
}
|
|
|
|
unsafe { rules.set_len(result.len() as u32) };
|
|
for (ref src, ref mut dest) in result.into_iter().zip(rules.iter_mut()) {
|
|
src.with_raw_offset_arc(|arc| {
|
|
**dest = *Locked::<StyleRule>::arc_as_borrowed(arc);
|
|
})
|
|
}
|
|
}
|
|
|
|
/// See the comment in `Device` to see why it's ok to pass an owned reference to
|
|
/// the pres context (hint: the context outlives the StyleSet, that holds the
|
|
/// device alive).
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_Init(pres_context: RawGeckoPresContextOwned)
|
|
-> *mut RawServoStyleSet {
|
|
let data = Box::new(PerDocumentStyleData::new(pres_context));
|
|
Box::into_raw(data) as *mut RawServoStyleSet
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_RebuildCachedData(raw_data: RawServoStyleSetBorrowed) {
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
data.stylist.device_mut().rebuild_cached_data();
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_Drop(data: RawServoStyleSetOwned) {
|
|
let _ = data.into_box::<PerDocumentStyleData>();
|
|
}
|
|
|
|
|
|
/// Updating the stylesheets and redoing selector matching is always happens
|
|
/// before the document element is inserted. Therefore we don't need to call
|
|
/// `force_dirty` here.
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_CompatModeChanged(raw_data: RawServoStyleSetBorrowed) {
|
|
let mut data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let quirks_mode = unsafe {
|
|
(*data.stylist.device().pres_context().mDocument.raw::<nsIDocument>())
|
|
.mCompatMode
|
|
};
|
|
|
|
data.stylist.set_quirks_mode(quirks_mode.into());
|
|
}
|
|
|
|
fn parse_property_into<R>(
|
|
declarations: &mut SourcePropertyDeclaration,
|
|
property_id: PropertyId,
|
|
value: *const nsACString,
|
|
data: *mut URLExtraData,
|
|
parsing_mode: structs::ParsingMode,
|
|
quirks_mode: QuirksMode,
|
|
reporter: &R
|
|
) -> Result<(), ()>
|
|
where
|
|
R: ParseErrorReporter
|
|
{
|
|
use style_traits::ParsingMode;
|
|
let value = unsafe { value.as_ref().unwrap().as_str_unchecked() };
|
|
let url_data = unsafe { RefPtr::from_ptr_ref(&data) };
|
|
let parsing_mode = ParsingMode::from_bits_truncate(parsing_mode);
|
|
|
|
parse_one_declaration_into(
|
|
declarations,
|
|
property_id,
|
|
value,
|
|
url_data,
|
|
reporter,
|
|
parsing_mode,
|
|
quirks_mode,
|
|
)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseProperty(
|
|
property: nsCSSPropertyID, value: *const nsACString,
|
|
data: *mut URLExtraData,
|
|
parsing_mode: structs::ParsingMode,
|
|
quirks_mode: nsCompatibility,
|
|
loader: *mut Loader,
|
|
) -> RawServoDeclarationBlockStrong {
|
|
let id = get_property_id_from_nscsspropertyid!(property,
|
|
RawServoDeclarationBlockStrong::null());
|
|
let mut declarations = SourcePropertyDeclaration::new();
|
|
let reporter = ErrorReporter::new(ptr::null_mut(), loader, data);
|
|
match parse_property_into(&mut declarations, id, value, data,
|
|
parsing_mode, quirks_mode.into(), &reporter) {
|
|
Ok(()) => {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let mut block = PropertyDeclarationBlock::new();
|
|
block.extend(
|
|
declarations.drain(),
|
|
Importance::Normal,
|
|
DeclarationSource::CssOm,
|
|
);
|
|
Arc::new(global_style_data.shared_lock.wrap(block)).into_strong()
|
|
}
|
|
Err(_) => RawServoDeclarationBlockStrong::null()
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseEasing(
|
|
easing: *const nsAString,
|
|
data: *mut URLExtraData,
|
|
output: nsTimingFunctionBorrowedMut
|
|
) -> bool {
|
|
use style::properties::longhands::transition_timing_function;
|
|
|
|
// FIXME Dummy URL data would work fine here.
|
|
let url_data = unsafe { RefPtr::from_ptr_ref(&data) };
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
url_data,
|
|
Some(CssRuleType::Style),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
let easing = unsafe { (*easing).to_string() };
|
|
let mut input = ParserInput::new(&easing);
|
|
let mut parser = Parser::new(&mut input);
|
|
let result =
|
|
parser.parse_entirely(|p| transition_timing_function::single_value::parse(&context, p));
|
|
match result {
|
|
Ok(parsed_easing) => {
|
|
*output = parsed_easing.into();
|
|
true
|
|
},
|
|
Err(_) => false
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_GetProperties_Overriding_Animation(element: RawGeckoElementBorrowed,
|
|
list: RawGeckoCSSPropertyIDListBorrowed,
|
|
set: nsCSSPropertyIDSetBorrowedMut) {
|
|
let element = GeckoElement(element);
|
|
let element_data = match element.borrow_data() {
|
|
Some(data) => data,
|
|
None => return
|
|
};
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let guards = StylesheetGuards::same(&guard);
|
|
let (overridden, custom) =
|
|
element_data.styles.primary().rules().get_properties_overriding_animations(&guards);
|
|
for p in list.iter() {
|
|
match PropertyId::from_nscsspropertyid(*p) {
|
|
Ok(property) => {
|
|
if let PropertyId::Longhand(id) = property {
|
|
if overridden.contains(id) {
|
|
unsafe { Gecko_AddPropertyToSet(set, *p) };
|
|
}
|
|
}
|
|
},
|
|
Err(_) => {
|
|
if *p == nsCSSPropertyID::eCSSPropertyExtra_variable && custom {
|
|
unsafe { Gecko_AddPropertyToSet(set, *p) };
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MatrixTransform_Operate(matrix_operator: MatrixTransformOperator,
|
|
from: *const RawGeckoGfxMatrix4x4,
|
|
to: *const RawGeckoGfxMatrix4x4,
|
|
progress: f64,
|
|
output: *mut RawGeckoGfxMatrix4x4) {
|
|
use self::MatrixTransformOperator::{Accumulate, Interpolate};
|
|
use style::values::computed::transform::Matrix3D;
|
|
|
|
let from = Matrix3D::from(unsafe { from.as_ref() }.expect("not a valid 'from' matrix"));
|
|
let to = Matrix3D::from(unsafe { to.as_ref() }.expect("not a valid 'to' matrix"));
|
|
let result = match matrix_operator {
|
|
Interpolate => from.animate(&to, Procedure::Interpolate { progress }),
|
|
Accumulate => from.animate(&to, Procedure::Accumulate { count: progress as u64 }),
|
|
};
|
|
|
|
let output = unsafe { output.as_mut() }.expect("not a valid 'output' matrix");
|
|
if let Ok(result) = result {
|
|
*output = result.into();
|
|
} else if progress < 0.5 {
|
|
*output = from.clone().into();
|
|
} else {
|
|
*output = to.clone().into();
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseStyleAttribute(
|
|
data: *const nsACString,
|
|
raw_extra_data: *mut URLExtraData,
|
|
quirks_mode: nsCompatibility,
|
|
loader: *mut Loader,
|
|
) -> RawServoDeclarationBlockStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let value = unsafe { data.as_ref().unwrap().as_str_unchecked() };
|
|
let reporter = ErrorReporter::new(ptr::null_mut(), loader, raw_extra_data);
|
|
let url_data = unsafe { RefPtr::from_ptr_ref(&raw_extra_data) };
|
|
Arc::new(global_style_data.shared_lock.wrap(
|
|
parse_style_attribute(
|
|
value,
|
|
url_data,
|
|
&reporter,
|
|
quirks_mode.into(),
|
|
)
|
|
)).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_CreateEmpty() -> RawServoDeclarationBlockStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
Arc::new(global_style_data.shared_lock.wrap(PropertyDeclarationBlock::new())).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_Clone(declarations: RawServoDeclarationBlockBorrowed)
|
|
-> RawServoDeclarationBlockStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
Arc::new(global_style_data.shared_lock.wrap(
|
|
declarations.read_with(&guard).clone()
|
|
)).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_Equals(
|
|
a: RawServoDeclarationBlockBorrowed,
|
|
b: RawServoDeclarationBlockBorrowed,
|
|
) -> bool {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
*Locked::<PropertyDeclarationBlock>::as_arc(&a).read_with(&guard).declarations() ==
|
|
*Locked::<PropertyDeclarationBlock>::as_arc(&b).read_with(&guard).declarations()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_GetCssText(declarations: RawServoDeclarationBlockBorrowed,
|
|
result: *mut nsAString) {
|
|
read_locked_arc(declarations, |decls: &PropertyDeclarationBlock| {
|
|
decls.to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SerializeOneValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property_id: nsCSSPropertyID, buffer: *mut nsAString,
|
|
computed_values: ServoStyleContextBorrowedOrNull,
|
|
custom_properties: RawServoDeclarationBlockBorrowedOrNull,
|
|
) {
|
|
let property_id = get_property_id_from_nscsspropertyid!(property_id, ());
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let decls = Locked::<PropertyDeclarationBlock>::as_arc(&declarations).read_with(&guard);
|
|
|
|
let mut string = String::new();
|
|
|
|
let custom_properties = Locked::<PropertyDeclarationBlock>::arc_from_borrowed(&custom_properties);
|
|
let custom_properties = custom_properties.map(|block| block.read_with(&guard));
|
|
let rv = decls.single_value_to_css(
|
|
&property_id, &mut string, computed_values, custom_properties);
|
|
debug_assert!(rv.is_ok());
|
|
|
|
let buffer = unsafe { buffer.as_mut().unwrap() };
|
|
buffer.assign_utf8(&string);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_SerializeFontValueForCanvas(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
buffer: *mut nsAString,
|
|
) {
|
|
use style::properties::shorthands::font;
|
|
|
|
read_locked_arc(declarations, |decls: &PropertyDeclarationBlock| {
|
|
let longhands = match font::LonghandsToSerialize::from_iter(decls.declarations().iter()) {
|
|
Ok(l) => l,
|
|
Err(()) => {
|
|
warn!("Unexpected property!");
|
|
return;
|
|
}
|
|
};
|
|
|
|
let mut string = String::new();
|
|
let rv = longhands.to_css_for_canvas(&mut string);
|
|
debug_assert!(rv.is_ok());
|
|
|
|
let buffer = unsafe { buffer.as_mut().unwrap() };
|
|
buffer.assign_utf8(&string);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_Count(declarations: RawServoDeclarationBlockBorrowed) -> u32 {
|
|
read_locked_arc(declarations, |decls: &PropertyDeclarationBlock| {
|
|
decls.declarations().len() as u32
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_GetNthProperty(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
index: u32,
|
|
result: *mut nsAString,
|
|
) -> bool {
|
|
read_locked_arc(declarations, |decls: &PropertyDeclarationBlock| {
|
|
if let Some(decl) = decls.declarations().get(index as usize) {
|
|
let result = unsafe { result.as_mut().unwrap() };
|
|
result.assign_utf8(&decl.id().name());
|
|
true
|
|
} else {
|
|
false
|
|
}
|
|
})
|
|
}
|
|
|
|
macro_rules! get_property_id_from_property {
|
|
($property: ident, $ret: expr) => {{
|
|
let property = $property.as_ref().unwrap().as_str_unchecked();
|
|
match PropertyId::parse(property.into()) {
|
|
Ok(property_id) => property_id,
|
|
Err(_) => { return $ret; }
|
|
}
|
|
}}
|
|
}
|
|
|
|
unsafe fn get_property_value(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property_id: PropertyId,
|
|
value: *mut nsAString,
|
|
) {
|
|
// This callsite is hot enough that the lock acquisition shows up in profiles.
|
|
// Using an unchecked read here improves our performance by ~10% on the
|
|
// microbenchmark in bug 1355599.
|
|
read_locked_arc_unchecked(declarations, |decls: &PropertyDeclarationBlock| {
|
|
decls.property_value_to_css(&property_id, value.as_mut().unwrap()).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_DeclarationBlock_GetPropertyValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: *const nsACString,
|
|
value: *mut nsAString,
|
|
) {
|
|
get_property_value(
|
|
declarations,
|
|
get_property_id_from_property!(property, ()),
|
|
value,
|
|
)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_DeclarationBlock_GetPropertyValueById(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: *mut nsAString,
|
|
) {
|
|
get_property_value(declarations, get_property_id_from_nscsspropertyid!(property, ()), value)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_DeclarationBlock_GetPropertyIsImportant(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: *const nsACString,
|
|
) -> bool {
|
|
let property_id = get_property_id_from_property!(property, false);
|
|
read_locked_arc(declarations, |decls: &PropertyDeclarationBlock| {
|
|
decls.property_priority(&property_id).important()
|
|
})
|
|
}
|
|
|
|
fn set_property(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property_id: PropertyId,
|
|
value: *const nsACString,
|
|
is_important: bool,
|
|
data: *mut URLExtraData,
|
|
parsing_mode: structs::ParsingMode,
|
|
quirks_mode: QuirksMode,
|
|
loader: *mut Loader
|
|
) -> bool {
|
|
let mut source_declarations = SourcePropertyDeclaration::new();
|
|
let reporter = ErrorReporter::new(ptr::null_mut(), loader, data);
|
|
match parse_property_into(&mut source_declarations, property_id, value, data,
|
|
parsing_mode, quirks_mode, &reporter) {
|
|
Ok(()) => {
|
|
let importance = if is_important { Importance::Important } else { Importance::Normal };
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.extend(
|
|
source_declarations.drain(),
|
|
importance,
|
|
DeclarationSource::CssOm
|
|
)
|
|
})
|
|
},
|
|
Err(_) => false,
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_DeclarationBlock_SetProperty(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: *const nsACString,
|
|
value: *const nsACString,
|
|
is_important: bool,
|
|
data: *mut URLExtraData,
|
|
parsing_mode: structs::ParsingMode,
|
|
quirks_mode: nsCompatibility,
|
|
loader: *mut Loader,
|
|
) -> bool {
|
|
set_property(
|
|
declarations,
|
|
get_property_id_from_property!(property, false),
|
|
value,
|
|
is_important,
|
|
data,
|
|
parsing_mode,
|
|
quirks_mode.into(),
|
|
loader,
|
|
)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_DeclarationBlock_SetPropertyById(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: *const nsACString,
|
|
is_important: bool,
|
|
data: *mut URLExtraData,
|
|
parsing_mode: structs::ParsingMode,
|
|
quirks_mode: nsCompatibility,
|
|
loader: *mut Loader,
|
|
) -> bool {
|
|
set_property(
|
|
declarations,
|
|
get_property_id_from_nscsspropertyid!(property, false),
|
|
value,
|
|
is_important,
|
|
data,
|
|
parsing_mode,
|
|
quirks_mode.into(),
|
|
loader,
|
|
)
|
|
}
|
|
|
|
fn remove_property(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property_id: PropertyId
|
|
) -> bool {
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.remove_property(&property_id)
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_DeclarationBlock_RemoveProperty(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: *const nsACString,
|
|
) {
|
|
remove_property(declarations, get_property_id_from_property!(property, ()));
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_RemovePropertyById(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID
|
|
) -> bool {
|
|
remove_property(declarations, get_property_id_from_nscsspropertyid!(property, false))
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_Create() -> RawServoMediaListStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
Arc::new(global_style_data.shared_lock.wrap(MediaList::empty())).into_strong()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_DeepClone(list: RawServoMediaListBorrowed) -> RawServoMediaListStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
read_locked_arc(list, |list: &MediaList| {
|
|
Arc::new(global_style_data.shared_lock.wrap(list.clone()))
|
|
.into_strong()
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_Matches(
|
|
list: RawServoMediaListBorrowed,
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
) -> bool {
|
|
let per_doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
read_locked_arc(list, |list: &MediaList| {
|
|
list.evaluate(per_doc_data.stylist.device(), per_doc_data.stylist.quirks_mode())
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_HasCSSWideKeyword(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
) -> bool {
|
|
let property_id = get_property_id_from_nscsspropertyid!(property, false);
|
|
read_locked_arc(declarations, |decls: &PropertyDeclarationBlock| {
|
|
decls.has_css_wide_keyword(&property_id)
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_GetText(list: RawServoMediaListBorrowed, result: *mut nsAString) {
|
|
read_locked_arc(list, |list: &MediaList| {
|
|
list.to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_MediaList_SetText(
|
|
list: RawServoMediaListBorrowed,
|
|
text: *const nsACString,
|
|
caller_type: CallerType,
|
|
) {
|
|
let text = (*text).as_str_unchecked();
|
|
|
|
let mut input = ParserInput::new(&text);
|
|
let mut parser = Parser::new(&mut input);
|
|
let url_data = dummy_url_data();
|
|
|
|
// TODO(emilio): If the need for `CallerType` appears in more places,
|
|
// consider adding an explicit member in `ParserContext` instead of doing
|
|
// this (or adding a dummy "chrome://" url data).
|
|
//
|
|
// For media query parsing it's effectively the same, so for now...
|
|
let origin = match caller_type {
|
|
CallerType::System => Origin::UserAgent,
|
|
CallerType::NonSystem => Origin::Author,
|
|
};
|
|
|
|
let context = ParserContext::new(
|
|
origin,
|
|
url_data,
|
|
Some(CssRuleType::Media),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
|
|
write_locked_arc(list, |list: &mut MediaList| {
|
|
*list = parse_media_query_list(
|
|
&context,
|
|
&mut parser,
|
|
&NullReporter,
|
|
);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_GetLength(list: RawServoMediaListBorrowed) -> u32 {
|
|
read_locked_arc(list, |list: &MediaList| list.media_queries.len() as u32)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_GetMediumAt(
|
|
list: RawServoMediaListBorrowed,
|
|
index: u32,
|
|
result: *mut nsAString,
|
|
) -> bool {
|
|
read_locked_arc(list, |list: &MediaList| {
|
|
if let Some(media_query) = list.media_queries.get(index as usize) {
|
|
media_query.to_css(unsafe { result.as_mut().unwrap() }).unwrap();
|
|
true
|
|
} else {
|
|
false
|
|
}
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_AppendMedium(
|
|
list: RawServoMediaListBorrowed,
|
|
new_medium: *const nsACString,
|
|
) {
|
|
let new_medium = unsafe { new_medium.as_ref().unwrap().as_str_unchecked() };
|
|
let url_data = unsafe { dummy_url_data() };
|
|
let context = ParserContext::new_for_cssom(
|
|
url_data,
|
|
Some(CssRuleType::Media),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
write_locked_arc(list, |list: &mut MediaList| {
|
|
list.append_medium(&context, new_medium);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_MediaList_DeleteMedium(
|
|
list: RawServoMediaListBorrowed,
|
|
old_medium: *const nsACString,
|
|
) -> bool {
|
|
let old_medium = unsafe { old_medium.as_ref().unwrap().as_str_unchecked() };
|
|
let url_data = unsafe { dummy_url_data() };
|
|
let context = ParserContext::new_for_cssom(
|
|
url_data,
|
|
Some(CssRuleType::Media),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
write_locked_arc(list, |list: &mut MediaList| list.delete_medium(&context, old_medium))
|
|
}
|
|
|
|
macro_rules! get_longhand_from_id {
|
|
($id:expr) => {
|
|
match PropertyId::from_nscsspropertyid($id) {
|
|
Ok(PropertyId::Longhand(long)) => long,
|
|
_ => {
|
|
panic!("stylo: unknown presentation property with id {:?}", $id);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
macro_rules! match_wrap_declared {
|
|
($longhand:ident, $($property:ident => $inner:expr,)*) => (
|
|
match $longhand {
|
|
$(
|
|
LonghandId::$property => PropertyDeclaration::$property($inner),
|
|
)*
|
|
_ => {
|
|
panic!("stylo: Don't know how to handle presentation property {:?}", $longhand);
|
|
}
|
|
}
|
|
)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_PropertyIsSet(declarations:
|
|
RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID)
|
|
-> bool {
|
|
read_locked_arc(declarations, |decls: &PropertyDeclarationBlock| {
|
|
decls.contains(get_longhand_from_id!(property))
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetIdentStringValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: *mut nsAtom,
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands::_x_lang::computed_value::T as Lang;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let prop = match_wrap_declared! { long,
|
|
XLang => Lang(Atom::from(value)),
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
#[allow(unreachable_code)]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetKeywordValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: i32
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands;
|
|
use style::values::specified::BorderStyle;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let value = value as u32;
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
MozUserModify => longhands::_moz_user_modify::SpecifiedValue::from_gecko_keyword(value),
|
|
// TextEmphasisPosition => FIXME implement text-emphasis-position
|
|
Direction => longhands::direction::SpecifiedValue::from_gecko_keyword(value),
|
|
Display => longhands::display::SpecifiedValue::from_gecko_keyword(value),
|
|
Float => longhands::float::SpecifiedValue::from_gecko_keyword(value),
|
|
VerticalAlign => longhands::vertical_align::SpecifiedValue::from_gecko_keyword(value),
|
|
TextAlign => longhands::text_align::SpecifiedValue::from_gecko_keyword(value),
|
|
TextEmphasisPosition => longhands::text_emphasis_position::SpecifiedValue::from_gecko_keyword(value),
|
|
Clear => longhands::clear::SpecifiedValue::from_gecko_keyword(value),
|
|
FontSize => {
|
|
// We rely on Gecko passing in font-size values (0...7) here.
|
|
longhands::font_size::SpecifiedValue::from_html_size(value as u8)
|
|
},
|
|
FontStyle => {
|
|
ToComputedValue::from_computed_value(&longhands::font_style::computed_value::T::from_gecko_keyword(value))
|
|
},
|
|
FontWeight => longhands::font_weight::SpecifiedValue::from_gecko_keyword(value),
|
|
ListStyleType => Box::new(longhands::list_style_type::SpecifiedValue::from_gecko_keyword(value)),
|
|
MozMathVariant => longhands::_moz_math_variant::SpecifiedValue::from_gecko_keyword(value),
|
|
WhiteSpace => longhands::white_space::SpecifiedValue::from_gecko_keyword(value),
|
|
CaptionSide => longhands::caption_side::SpecifiedValue::from_gecko_keyword(value),
|
|
BorderTopStyle => BorderStyle::from_gecko_keyword(value),
|
|
BorderRightStyle => BorderStyle::from_gecko_keyword(value),
|
|
BorderBottomStyle => BorderStyle::from_gecko_keyword(value),
|
|
BorderLeftStyle => BorderStyle::from_gecko_keyword(value),
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetIntValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: i32
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands::_moz_script_level::SpecifiedValue as MozScriptLevel;
|
|
use style::properties::longhands::_x_span::computed_value::T as Span;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let prop = match_wrap_declared! { long,
|
|
XSpan => Span(value),
|
|
// Gecko uses Integer values to signal that it is relative
|
|
MozScriptLevel => MozScriptLevel::Relative(value),
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetPixelValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: f32
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands::border_spacing::SpecifiedValue as BorderSpacing;
|
|
use style::properties::longhands::height::SpecifiedValue as Height;
|
|
use style::properties::longhands::width::SpecifiedValue as Width;
|
|
use style::values::specified::{BorderSideWidth, MozLength, BorderCornerRadius};
|
|
use style::values::specified::length::{NoCalcLength, NonNegativeLength, LengthOrPercentage};
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let nocalc = NoCalcLength::from_px(value);
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
Height => Height(MozLength::LengthOrPercentageOrAuto(nocalc.into())),
|
|
Width => Width(MozLength::LengthOrPercentageOrAuto(nocalc.into())),
|
|
BorderTopWidth => BorderSideWidth::Length(nocalc.into()),
|
|
BorderRightWidth => BorderSideWidth::Length(nocalc.into()),
|
|
BorderBottomWidth => BorderSideWidth::Length(nocalc.into()),
|
|
BorderLeftWidth => BorderSideWidth::Length(nocalc.into()),
|
|
MarginTop => nocalc.into(),
|
|
MarginRight => nocalc.into(),
|
|
MarginBottom => nocalc.into(),
|
|
MarginLeft => nocalc.into(),
|
|
PaddingTop => nocalc.into(),
|
|
PaddingRight => nocalc.into(),
|
|
PaddingBottom => nocalc.into(),
|
|
PaddingLeft => nocalc.into(),
|
|
BorderSpacing => {
|
|
let v = NonNegativeLength::from(nocalc);
|
|
Box::new(BorderSpacing::new(v.clone(), v))
|
|
},
|
|
BorderTopLeftRadius => {
|
|
let length = LengthOrPercentage::from(nocalc);
|
|
Box::new(BorderCornerRadius::new(length.clone(), length))
|
|
},
|
|
BorderTopRightRadius => {
|
|
let length = LengthOrPercentage::from(nocalc);
|
|
Box::new(BorderCornerRadius::new(length.clone(), length))
|
|
},
|
|
BorderBottomLeftRadius => {
|
|
let length = LengthOrPercentage::from(nocalc);
|
|
Box::new(BorderCornerRadius::new(length.clone(), length))
|
|
},
|
|
BorderBottomRightRadius => {
|
|
let length = LengthOrPercentage::from(nocalc);
|
|
Box::new(BorderCornerRadius::new(length.clone(), length))
|
|
},
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetLengthValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: f32,
|
|
unit: structs::nsCSSUnit,
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands::_moz_script_min_size::SpecifiedValue as MozScriptMinSize;
|
|
use style::properties::longhands::width::SpecifiedValue as Width;
|
|
use style::values::specified::MozLength;
|
|
use style::values::specified::length::{AbsoluteLength, FontRelativeLength};
|
|
use style::values::specified::length::{LengthOrPercentage, NoCalcLength};
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let nocalc = match unit {
|
|
structs::nsCSSUnit::eCSSUnit_EM => NoCalcLength::FontRelative(FontRelativeLength::Em(value)),
|
|
structs::nsCSSUnit::eCSSUnit_XHeight => NoCalcLength::FontRelative(FontRelativeLength::Ex(value)),
|
|
structs::nsCSSUnit::eCSSUnit_Pixel => NoCalcLength::Absolute(AbsoluteLength::Px(value)),
|
|
structs::nsCSSUnit::eCSSUnit_Inch => NoCalcLength::Absolute(AbsoluteLength::In(value)),
|
|
structs::nsCSSUnit::eCSSUnit_Centimeter => NoCalcLength::Absolute(AbsoluteLength::Cm(value)),
|
|
structs::nsCSSUnit::eCSSUnit_Millimeter => NoCalcLength::Absolute(AbsoluteLength::Mm(value)),
|
|
structs::nsCSSUnit::eCSSUnit_Point => NoCalcLength::Absolute(AbsoluteLength::Pt(value)),
|
|
structs::nsCSSUnit::eCSSUnit_Pica => NoCalcLength::Absolute(AbsoluteLength::Pc(value)),
|
|
structs::nsCSSUnit::eCSSUnit_Quarter => NoCalcLength::Absolute(AbsoluteLength::Q(value)),
|
|
_ => unreachable!("Unknown unit {:?} passed to SetLengthValue", unit)
|
|
};
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
Width => Width(MozLength::LengthOrPercentageOrAuto(nocalc.into())),
|
|
FontSize => LengthOrPercentage::from(nocalc).into(),
|
|
MozScriptMinSize => MozScriptMinSize(nocalc),
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetNumberValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: f32,
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands::_moz_script_level::SpecifiedValue as MozScriptLevel;
|
|
use style::properties::longhands::_moz_script_size_multiplier::SpecifiedValue as MozScriptSizeMultiplier;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
MozScriptSizeMultiplier => MozScriptSizeMultiplier(value),
|
|
// Gecko uses Number values to signal that it is absolute
|
|
MozScriptLevel => MozScriptLevel::MozAbsolute(value as i32),
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetPercentValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: f32,
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands::height::SpecifiedValue as Height;
|
|
use style::properties::longhands::width::SpecifiedValue as Width;
|
|
use style::values::computed::Percentage;
|
|
use style::values::specified::MozLength;
|
|
use style::values::specified::length::LengthOrPercentage;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let pc = Percentage(value);
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
Height => Height(MozLength::LengthOrPercentageOrAuto(pc.into())),
|
|
Width => Width(MozLength::LengthOrPercentageOrAuto(pc.into())),
|
|
MarginTop => pc.into(),
|
|
MarginRight => pc.into(),
|
|
MarginBottom => pc.into(),
|
|
MarginLeft => pc.into(),
|
|
FontSize => LengthOrPercentage::from(pc).into(),
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetAutoValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands::height::SpecifiedValue as Height;
|
|
use style::properties::longhands::width::SpecifiedValue as Width;
|
|
use style::values::specified::LengthOrPercentageOrAuto;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let auto = LengthOrPercentageOrAuto::Auto;
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
Height => Height::auto(),
|
|
Width => Width::auto(),
|
|
MarginTop => auto,
|
|
MarginRight => auto,
|
|
MarginBottom => auto,
|
|
MarginLeft => auto,
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetCurrentColor(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
) {
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::values::specified::Color;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let cc = Color::currentcolor();
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
BorderTopColor => cc,
|
|
BorderRightColor => cc,
|
|
BorderBottomColor => cc,
|
|
BorderLeftColor => cc,
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetColorValue(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
property: nsCSSPropertyID,
|
|
value: structs::nscolor,
|
|
) {
|
|
use style::gecko::values::convert_nscolor_to_rgba;
|
|
use style::properties::{PropertyDeclaration, LonghandId};
|
|
use style::properties::longhands;
|
|
use style::values::specified::Color;
|
|
|
|
let long = get_longhand_from_id!(property);
|
|
let rgba = convert_nscolor_to_rgba(value);
|
|
let color = Color::rgba(rgba);
|
|
|
|
let prop = match_wrap_declared! { long,
|
|
BorderTopColor => color,
|
|
BorderRightColor => color,
|
|
BorderBottomColor => color,
|
|
BorderLeftColor => color,
|
|
Color => longhands::color::SpecifiedValue(color),
|
|
BackgroundColor => color,
|
|
};
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(prop, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetFontFamily(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
value: *const nsAString,
|
|
) {
|
|
use cssparser::{Parser, ParserInput};
|
|
use style::properties::PropertyDeclaration;
|
|
use style::properties::longhands::font_family::SpecifiedValue as FontFamily;
|
|
|
|
let string = unsafe { (*value).to_string() };
|
|
let mut input = ParserInput::new(&string);
|
|
let mut parser = Parser::new(&mut input);
|
|
let result = FontFamily::parse_specified(&mut parser);
|
|
if let Ok(family) = result {
|
|
if parser.is_exhausted() {
|
|
let decl = PropertyDeclaration::FontFamily(family);
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(decl, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetBackgroundImage(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
value: *const nsAString,
|
|
raw_extra_data: *mut URLExtraData,
|
|
) {
|
|
use style::properties::PropertyDeclaration;
|
|
use style::properties::longhands::background_image::SpecifiedValue as BackgroundImage;
|
|
use style::values::Either;
|
|
use style::values::generics::image::Image;
|
|
use style::values::specified::url::SpecifiedUrl;
|
|
|
|
let url_data = unsafe { RefPtr::from_ptr_ref(&raw_extra_data) };
|
|
let string = unsafe { (*value).to_string() };
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
url_data,
|
|
Some(CssRuleType::Style),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
if let Ok(mut url) = SpecifiedUrl::parse_from_string(string.into(), &context) {
|
|
url.build_image_value();
|
|
let decl = PropertyDeclaration::BackgroundImage(BackgroundImage(
|
|
vec![Either::Second(Image::Url(url))]
|
|
));
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(decl, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_DeclarationBlock_SetTextDecorationColorOverride(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
) {
|
|
use style::properties::PropertyDeclaration;
|
|
use style::values::specified::text::TextDecorationLine;
|
|
|
|
let mut decoration = TextDecorationLine::none();
|
|
decoration |= TextDecorationLine::COLOR_OVERRIDE;
|
|
let decl = PropertyDeclaration::TextDecorationLine(decoration);
|
|
write_locked_arc(declarations, |decls: &mut PropertyDeclarationBlock| {
|
|
decls.push(decl, Importance::Normal, DeclarationSource::CssOm);
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_CSSSupports2(
|
|
property: *const nsACString,
|
|
value: *const nsACString,
|
|
) -> bool {
|
|
let id = get_property_id_from_property!(property, false);
|
|
|
|
let mut declarations = SourcePropertyDeclaration::new();
|
|
parse_property_into(
|
|
&mut declarations,
|
|
id,
|
|
value,
|
|
DUMMY_URL_DATA,
|
|
structs::ParsingMode_Default,
|
|
QuirksMode::NoQuirks,
|
|
&NullReporter,
|
|
).is_ok()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_CSSSupports(cond: *const nsACString) -> bool {
|
|
let condition = unsafe { cond.as_ref().unwrap().as_str_unchecked() };
|
|
let mut input = ParserInput::new(&condition);
|
|
let mut input = Parser::new(&mut input);
|
|
let cond = input.parse_entirely(|i| parse_condition_or_declaration(i));
|
|
if let Ok(cond) = cond {
|
|
let url_data = unsafe { dummy_url_data() };
|
|
// NOTE(emilio): The supports API is not associated to any stylesheet,
|
|
// so the fact that there are no namespace map here is fine.
|
|
let context = ParserContext::new_for_cssom(
|
|
url_data,
|
|
Some(CssRuleType::Style),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
|
|
cond.eval(&context)
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_NoteExplicitHints(
|
|
element: RawGeckoElementBorrowed,
|
|
restyle_hint: nsRestyleHint,
|
|
change_hint: nsChangeHint,
|
|
) {
|
|
GeckoElement(element).note_explicit_hints(restyle_hint, change_hint);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_TakeChangeHint(
|
|
element: RawGeckoElementBorrowed,
|
|
was_restyled: *mut bool
|
|
) -> u32 {
|
|
let was_restyled = unsafe { was_restyled.as_mut().unwrap() };
|
|
let element = GeckoElement(element);
|
|
|
|
let damage = match element.mutate_data() {
|
|
Some(mut data) => {
|
|
*was_restyled = data.is_restyle();
|
|
|
|
let damage = data.damage;
|
|
data.clear_restyle_state();
|
|
damage
|
|
}
|
|
None => {
|
|
warn!("Trying to get change hint from unstyled element");
|
|
*was_restyled = false;
|
|
GeckoRestyleDamage::empty()
|
|
}
|
|
};
|
|
|
|
debug!("Servo_TakeChangeHint: {:?}, damage={:?}", element, damage);
|
|
// 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, so for now just unwrap it.
|
|
damage.as_change_hint().0
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ResolveStyle(
|
|
element: RawGeckoElementBorrowed,
|
|
_raw_data: RawServoStyleSetBorrowed,
|
|
) -> ServoStyleContextStrong {
|
|
let element = GeckoElement(element);
|
|
debug!("Servo_ResolveStyle: {:?}", element);
|
|
let data =
|
|
element.borrow_data().expect("Resolving style on unstyled element");
|
|
|
|
debug_assert!(element.has_current_styles(&*data),
|
|
"Resolving style on {:?} without current styles: {:?}", element, data);
|
|
data.styles.primary().clone().into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ResolveStyleLazily(
|
|
element: RawGeckoElementBorrowed,
|
|
pseudo_type: CSSPseudoElementType,
|
|
rule_inclusion: StyleRuleInclusion,
|
|
snapshots: *const ServoElementSnapshotTable,
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
ignore_existing_styles: bool
|
|
) -> ServoStyleContextStrong {
|
|
debug_assert!(!snapshots.is_null());
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let element = GeckoElement(element);
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_data);
|
|
let data = doc_data.borrow();
|
|
let rule_inclusion = RuleInclusion::from(rule_inclusion);
|
|
let pseudo = PseudoElement::from_pseudo_type(pseudo_type);
|
|
let finish = |styles: &ElementStyles, is_probe: bool| -> Option<Arc<ComputedValues>> {
|
|
match pseudo {
|
|
Some(ref pseudo) => {
|
|
get_pseudo_style(
|
|
&guard,
|
|
element,
|
|
pseudo,
|
|
rule_inclusion,
|
|
styles,
|
|
/* inherited_styles = */ None,
|
|
&*data,
|
|
is_probe,
|
|
/* matching_func = */ None,
|
|
)
|
|
}
|
|
None => Some(styles.primary().clone()),
|
|
}
|
|
};
|
|
|
|
let is_before_or_after = pseudo.as_ref().map_or(false, |p| p.is_before_or_after());
|
|
|
|
// In the common case we already have the style. Check that before setting
|
|
// up all the computation machinery. (Don't use it when we're getting
|
|
// default styles or in a bfcached document (as indicated by
|
|
// ignore_existing_styles), though.)
|
|
//
|
|
// Also, only probe in the ::before or ::after case, since their styles may
|
|
// not be in the `ElementData`, given they may exist but not be applicable
|
|
// to generate an actual pseudo-element (like, having a `content: none`).
|
|
if rule_inclusion == RuleInclusion::All && !ignore_existing_styles {
|
|
let styles = element.mutate_data().and_then(|d| {
|
|
if d.has_styles() {
|
|
finish(&d.styles, is_before_or_after)
|
|
} else {
|
|
None
|
|
}
|
|
});
|
|
if let Some(result) = styles {
|
|
return result.into();
|
|
}
|
|
}
|
|
|
|
// We don't have the style ready. Go ahead and compute it as necessary.
|
|
let shared = create_shared_context(&global_style_data,
|
|
&guard,
|
|
&data,
|
|
TraversalFlags::empty(),
|
|
unsafe { &*snapshots });
|
|
let mut tlc = ThreadLocalStyleContext::new(&shared);
|
|
let mut context = StyleContext {
|
|
shared: &shared,
|
|
thread_local: &mut tlc,
|
|
};
|
|
|
|
let styles = resolve_style(
|
|
&mut context,
|
|
element,
|
|
rule_inclusion,
|
|
ignore_existing_styles,
|
|
pseudo.as_ref()
|
|
);
|
|
|
|
finish(&styles, /* is_probe = */ false)
|
|
.expect("We're not probing, so we should always get a style back")
|
|
.into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ReparentStyle(
|
|
style_to_reparent: ServoStyleContextBorrowed,
|
|
parent_style: ServoStyleContextBorrowed,
|
|
parent_style_ignoring_first_line: ServoStyleContextBorrowed,
|
|
layout_parent_style: ServoStyleContextBorrowed,
|
|
element: RawGeckoElementBorrowedOrNull,
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
) -> ServoStyleContextStrong {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let inputs = CascadeInputs::new_from_style(style_to_reparent);
|
|
let metrics = get_metrics_provider_for_product();
|
|
let pseudo = style_to_reparent.pseudo();
|
|
let element = element.map(GeckoElement);
|
|
|
|
let mut cascade_flags = CascadeFlags::empty();
|
|
if style_to_reparent.is_anon_box() {
|
|
cascade_flags.insert(CascadeFlags::SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP);
|
|
}
|
|
if let Some(element) = element {
|
|
if element.is_link() {
|
|
cascade_flags.insert(CascadeFlags::IS_LINK);
|
|
if element.is_visited_link() && doc_data.visited_styles_enabled() {
|
|
cascade_flags.insert(CascadeFlags::IS_VISITED_LINK);
|
|
}
|
|
};
|
|
}
|
|
|
|
doc_data.stylist.compute_style_with_inputs(
|
|
&inputs,
|
|
pseudo.as_ref(),
|
|
&StylesheetGuards::same(&guard),
|
|
Some(parent_style),
|
|
Some(parent_style_ignoring_first_line),
|
|
Some(layout_parent_style),
|
|
&metrics,
|
|
cascade_flags,
|
|
).into()
|
|
}
|
|
|
|
#[cfg(feature = "gecko_debug")]
|
|
fn simulate_compute_values_failure(property: &PropertyValuePair) -> bool {
|
|
let p = property.mProperty;
|
|
let id = get_property_id_from_nscsspropertyid!(p, false);
|
|
id.as_shorthand().is_ok() && property.mSimulateComputeValuesFailure
|
|
}
|
|
|
|
#[cfg(not(feature = "gecko_debug"))]
|
|
fn simulate_compute_values_failure(_: &PropertyValuePair) -> bool {
|
|
false
|
|
}
|
|
|
|
fn create_context<'a>(
|
|
per_doc_data: &'a PerDocumentStyleDataImpl,
|
|
font_metrics_provider: &'a FontMetricsProvider,
|
|
style: &'a ComputedValues,
|
|
parent_style: Option<&'a ComputedValues>,
|
|
pseudo: Option<&'a PseudoElement>,
|
|
for_smil_animation: bool,
|
|
rule_cache_conditions: &'a mut RuleCacheConditions,
|
|
) -> Context<'a> {
|
|
Context {
|
|
is_root_element: false,
|
|
builder: StyleBuilder::for_derived_style(
|
|
per_doc_data.stylist.device(),
|
|
style,
|
|
parent_style,
|
|
pseudo,
|
|
),
|
|
font_metrics_provider: font_metrics_provider,
|
|
cached_system_font: None,
|
|
in_media_query: false,
|
|
quirks_mode: per_doc_data.stylist.quirks_mode(),
|
|
for_smil_animation,
|
|
for_non_inherited_property: None,
|
|
rule_cache_conditions: RefCell::new(rule_cache_conditions),
|
|
}
|
|
}
|
|
|
|
struct PropertyAndIndex {
|
|
property: PropertyId,
|
|
index: usize,
|
|
}
|
|
|
|
struct PrioritizedPropertyIter<'a> {
|
|
properties: &'a nsTArray<PropertyValuePair>,
|
|
sorted_property_indices: Vec<PropertyAndIndex>,
|
|
curr: usize,
|
|
}
|
|
|
|
impl<'a> PrioritizedPropertyIter<'a> {
|
|
pub fn new(properties: &'a nsTArray<PropertyValuePair>) -> PrioritizedPropertyIter {
|
|
// If we fail to convert a nsCSSPropertyID into a PropertyId we shouldn't fail outright
|
|
// but instead by treating that property as the 'all' property we make it sort last.
|
|
let all = PropertyId::Shorthand(ShorthandId::All);
|
|
|
|
let mut sorted_property_indices: Vec<PropertyAndIndex> =
|
|
properties.iter().enumerate().map(|(index, pair)| {
|
|
PropertyAndIndex {
|
|
property: PropertyId::from_nscsspropertyid(pair.mProperty)
|
|
.unwrap_or(all.clone()),
|
|
index,
|
|
}
|
|
}).collect();
|
|
sorted_property_indices.sort_by(|a, b| compare_property_priority(&a.property, &b.property));
|
|
|
|
PrioritizedPropertyIter {
|
|
properties,
|
|
sorted_property_indices,
|
|
curr: 0,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<'a> Iterator for PrioritizedPropertyIter<'a> {
|
|
type Item = &'a PropertyValuePair;
|
|
|
|
fn next(&mut self) -> Option<&'a PropertyValuePair> {
|
|
if self.curr >= self.sorted_property_indices.len() {
|
|
return None
|
|
}
|
|
self.curr += 1;
|
|
Some(&self.properties[self.sorted_property_indices[self.curr - 1].index])
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_GetComputedKeyframeValues(
|
|
keyframes: RawGeckoKeyframeListBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
style: ServoStyleContextBorrowed,
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
computed_keyframes: RawGeckoComputedKeyframeValuesListBorrowedMut
|
|
) {
|
|
use std::mem;
|
|
use style::properties::LonghandIdSet;
|
|
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let metrics = get_metrics_provider_for_product();
|
|
|
|
let element = GeckoElement(element);
|
|
let parent_element = element.inheritance_parent();
|
|
let parent_data = parent_element.as_ref().and_then(|e| e.borrow_data());
|
|
let parent_style = parent_data.as_ref().map(|d| d.styles.primary()).map(|x| &**x);
|
|
|
|
let pseudo = style.pseudo();
|
|
let mut conditions = Default::default();
|
|
let mut context = create_context(
|
|
&data,
|
|
&metrics,
|
|
&style,
|
|
parent_style,
|
|
pseudo.as_ref(),
|
|
/* for_smil_animation = */ false,
|
|
&mut conditions,
|
|
);
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let default_values = data.default_computed_values();
|
|
|
|
let mut raw_custom_properties_block; // To make the raw block alive in the scope.
|
|
for (index, keyframe) in keyframes.iter().enumerate() {
|
|
let mut custom_properties = None;
|
|
for property in keyframe.mPropertyValues.iter() {
|
|
// Find the block for custom properties first.
|
|
if property.mProperty == nsCSSPropertyID::eCSSPropertyExtra_variable {
|
|
raw_custom_properties_block = unsafe {
|
|
&*property.mServoDeclarationBlock.mRawPtr.clone()
|
|
};
|
|
let guard = Locked::<PropertyDeclarationBlock>::as_arc(
|
|
&raw_custom_properties_block).read_with(&guard);
|
|
custom_properties = guard.cascade_custom_properties_with_context(&context);
|
|
// There should be one PropertyDeclarationBlock for custom properties.
|
|
break;
|
|
}
|
|
}
|
|
|
|
let ref mut animation_values = computed_keyframes[index];
|
|
|
|
let mut seen = LonghandIdSet::new();
|
|
|
|
let mut property_index = 0;
|
|
for property in PrioritizedPropertyIter::new(&keyframe.mPropertyValues) {
|
|
if simulate_compute_values_failure(property) {
|
|
continue;
|
|
}
|
|
|
|
let mut maybe_append_animation_value = |property: LonghandId, value: Option<AnimationValue>| {
|
|
if seen.contains(property) {
|
|
return;
|
|
}
|
|
seen.insert(property);
|
|
|
|
// This is safe since we immediately write to the uninitialized values.
|
|
unsafe { animation_values.set_len((property_index + 1) as u32) };
|
|
animation_values[property_index].mProperty = property.to_nscsspropertyid();
|
|
// We only make sure we have enough space for this variable,
|
|
// but didn't construct a default value for StyleAnimationValue,
|
|
// so we should zero it to avoid getting undefined behaviors.
|
|
animation_values[property_index].mValue.mGecko = unsafe { mem::zeroed() };
|
|
match value {
|
|
Some(v) => {
|
|
animation_values[property_index].mValue.mServo.set_arc_leaky(Arc::new(v));
|
|
},
|
|
None => {
|
|
animation_values[property_index].mValue.mServo.mRawPtr = ptr::null_mut();
|
|
},
|
|
}
|
|
property_index += 1;
|
|
};
|
|
|
|
if property.mServoDeclarationBlock.mRawPtr.is_null() {
|
|
let property =
|
|
LonghandId::from_nscsspropertyid(property.mProperty);
|
|
if let Ok(prop) = property {
|
|
maybe_append_animation_value(prop, None);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
let declarations = unsafe { &*property.mServoDeclarationBlock.mRawPtr.clone() };
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
let guard = declarations.read_with(&guard);
|
|
let iter = guard.to_animation_value_iter(
|
|
&mut context,
|
|
&default_values,
|
|
custom_properties.as_ref(),
|
|
);
|
|
|
|
for value in iter {
|
|
let id = value.id();
|
|
maybe_append_animation_value(id, Some(value));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_GetAnimationValues(
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
style: ServoStyleContextBorrowed,
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
animation_values: RawGeckoServoAnimationValueListBorrowedMut,
|
|
) {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let metrics = get_metrics_provider_for_product();
|
|
|
|
let element = GeckoElement(element);
|
|
let parent_element = element.inheritance_parent();
|
|
let parent_data = parent_element.as_ref().and_then(|e| e.borrow_data());
|
|
let parent_style = parent_data.as_ref().map(|d| d.styles.primary()).map(|x| &**x);
|
|
|
|
let pseudo = style.pseudo();
|
|
let mut conditions = Default::default();
|
|
let mut context = create_context(
|
|
&data,
|
|
&metrics,
|
|
&style,
|
|
parent_style,
|
|
pseudo.as_ref(),
|
|
/* for_smil_animation = */ true,
|
|
&mut conditions,
|
|
);
|
|
|
|
let default_values = data.default_computed_values();
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
let guard = declarations.read_with(&guard);
|
|
let iter = guard.to_animation_value_iter(
|
|
&mut context,
|
|
&default_values,
|
|
None, // SMIL has no extra custom properties.
|
|
);
|
|
for (index, anim) in iter.enumerate() {
|
|
unsafe { animation_values.set_len((index + 1) as u32) };
|
|
animation_values[index].set_arc_leaky(Arc::new(anim));
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AnimationValue_Compute(
|
|
element: RawGeckoElementBorrowed,
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
style: ServoStyleContextBorrowed,
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
) -> RawServoAnimationValueStrong {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let metrics = get_metrics_provider_for_product();
|
|
|
|
let element = GeckoElement(element);
|
|
let parent_element = element.inheritance_parent();
|
|
let parent_data = parent_element.as_ref().and_then(|e| e.borrow_data());
|
|
let parent_style = parent_data.as_ref().map(|d| d.styles.primary()).map(|x| &**x);
|
|
|
|
let pseudo = style.pseudo();
|
|
let mut conditions = Default::default();
|
|
let mut context = create_context(
|
|
&data,
|
|
&metrics,
|
|
style,
|
|
parent_style,
|
|
pseudo.as_ref(),
|
|
/* for_smil_animation = */ false,
|
|
&mut conditions,
|
|
);
|
|
|
|
let default_values = data.default_computed_values();
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
// We only compute the first element in declarations.
|
|
match declarations.read_with(&guard).declaration_importance_iter().next() {
|
|
Some((decl, imp)) if imp == Importance::Normal => {
|
|
let animation = AnimationValue::from_declaration(
|
|
decl,
|
|
&mut context,
|
|
None, // No extra custom properties for devtools.
|
|
default_values,
|
|
);
|
|
animation.map_or(RawServoAnimationValueStrong::null(), |value| {
|
|
Arc::new(value).into_strong()
|
|
})
|
|
},
|
|
_ => RawServoAnimationValueStrong::null()
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_AssertTreeIsClean(root: RawGeckoElementBorrowed) {
|
|
if !cfg!(feature = "gecko_debug") {
|
|
panic!("Calling Servo_AssertTreeIsClean in release build");
|
|
}
|
|
|
|
let root = GeckoElement(root);
|
|
debug!("Servo_AssertTreeIsClean: ");
|
|
debug!("{:?}", ShowSubtreeData(root.as_node()));
|
|
|
|
fn assert_subtree_is_clean<'le>(el: GeckoElement<'le>) {
|
|
debug_assert!(!el.has_dirty_descendants() && !el.has_animation_only_dirty_descendants(),
|
|
"{:?} has still dirty bit {:?} or animation-only dirty bit {:?}",
|
|
el, el.has_dirty_descendants(), el.has_animation_only_dirty_descendants());
|
|
for child in el.traversal_children() {
|
|
if let Some(child) = child.as_element() {
|
|
assert_subtree_is_clean(child);
|
|
}
|
|
}
|
|
}
|
|
|
|
assert_subtree_is_clean(root);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_IsWorkerThread() -> bool {
|
|
thread_state::get().is_worker()
|
|
}
|
|
|
|
enum Offset {
|
|
Zero,
|
|
One
|
|
}
|
|
|
|
fn fill_in_missing_keyframe_values(
|
|
all_properties: &LonghandIdSet,
|
|
timing_function: nsTimingFunctionBorrowed,
|
|
longhands_at_offset: &LonghandIdSet,
|
|
offset: Offset,
|
|
keyframes: RawGeckoKeyframeListBorrowedMut,
|
|
) {
|
|
// Return early if all animated properties are already set.
|
|
if longhands_at_offset.contains_all(all_properties) {
|
|
return;
|
|
}
|
|
|
|
let keyframe = match offset {
|
|
Offset::Zero => unsafe {
|
|
Gecko_GetOrCreateInitialKeyframe(keyframes, timing_function)
|
|
},
|
|
Offset::One => unsafe {
|
|
Gecko_GetOrCreateFinalKeyframe(keyframes, timing_function)
|
|
},
|
|
};
|
|
|
|
// Append properties that have not been set at this offset.
|
|
for property in all_properties.iter() {
|
|
if !longhands_at_offset.contains(property) {
|
|
unsafe {
|
|
Gecko_AppendPropertyValuePair(
|
|
&mut (*keyframe).mPropertyValues,
|
|
property.to_nscsspropertyid()
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_GetKeyframesForName(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
name: *mut nsAtom,
|
|
inherited_timing_function: nsTimingFunctionBorrowed,
|
|
keyframes: RawGeckoKeyframeListBorrowedMut,
|
|
) -> bool {
|
|
debug_assert!(keyframes.len() == 0,
|
|
"keyframes should be initially empty");
|
|
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let name = Atom::from(name);
|
|
|
|
let animation = match data.stylist.get_animation(&name) {
|
|
Some(animation) => animation,
|
|
None => return false,
|
|
};
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
|
|
let mut properties_set_at_current_offset = LonghandIdSet::new();
|
|
let mut properties_set_at_start = LonghandIdSet::new();
|
|
let mut properties_set_at_end = LonghandIdSet::new();
|
|
let mut has_complete_initial_keyframe = false;
|
|
let mut has_complete_final_keyframe = false;
|
|
let mut current_offset = -1.;
|
|
|
|
// Iterate over the keyframe rules backwards so we can drop overridden
|
|
// properties (since declarations in later rules override those in earlier
|
|
// ones).
|
|
for step in animation.steps.iter().rev() {
|
|
if step.start_percentage.0 != current_offset {
|
|
properties_set_at_current_offset.clear();
|
|
current_offset = step.start_percentage.0;
|
|
}
|
|
|
|
// Override timing_function if the keyframe has an animation-timing-function.
|
|
let timing_function = match step.get_animation_timing_function(&guard) {
|
|
Some(val) => val.into(),
|
|
None => *inherited_timing_function,
|
|
};
|
|
|
|
// Look for an existing keyframe with the same offset and timing
|
|
// function or else add a new keyframe at the beginning of the keyframe
|
|
// array.
|
|
let keyframe = unsafe {
|
|
Gecko_GetOrCreateKeyframeAtStart(keyframes,
|
|
step.start_percentage.0 as f32,
|
|
&timing_function)
|
|
};
|
|
|
|
match step.value {
|
|
KeyframesStepValue::ComputedValues => {
|
|
// In KeyframesAnimation::from_keyframes if there is no 0% or
|
|
// 100% keyframe at all, we will create a 'ComputedValues' step
|
|
// to represent that all properties animated by the keyframes
|
|
// animation should be set to the underlying computed value for
|
|
// that keyframe.
|
|
for property in animation.properties_changed.iter() {
|
|
unsafe {
|
|
Gecko_AppendPropertyValuePair(
|
|
&mut (*keyframe).mPropertyValues,
|
|
property.to_nscsspropertyid(),
|
|
);
|
|
}
|
|
}
|
|
if current_offset == 0.0 {
|
|
has_complete_initial_keyframe = true;
|
|
} else if current_offset == 1.0 {
|
|
has_complete_final_keyframe = true;
|
|
}
|
|
},
|
|
KeyframesStepValue::Declarations { ref block } => {
|
|
let guard = block.read_with(&guard);
|
|
|
|
let mut custom_properties = PropertyDeclarationBlock::new();
|
|
|
|
// Filter out non-animatable properties and properties with
|
|
// !important.
|
|
for declaration in guard.normal_declaration_iter() {
|
|
let id = declaration.id();
|
|
|
|
let id = match id {
|
|
PropertyDeclarationId::Longhand(id) => {
|
|
// Skip the 'display' property because although it
|
|
// is animatable from SMIL, it should not be
|
|
// animatable from CSS Animations.
|
|
if id == LonghandId::Display {
|
|
continue;
|
|
}
|
|
|
|
if !id.is_animatable() {
|
|
continue;
|
|
}
|
|
|
|
id
|
|
}
|
|
PropertyDeclarationId::Custom(..) => {
|
|
custom_properties.push(
|
|
declaration.clone(),
|
|
Importance::Normal,
|
|
DeclarationSource::CssOm,
|
|
);
|
|
continue;
|
|
}
|
|
};
|
|
|
|
if properties_set_at_current_offset.contains(id) {
|
|
continue;
|
|
}
|
|
|
|
let pair = unsafe {
|
|
Gecko_AppendPropertyValuePair(
|
|
&mut (*keyframe).mPropertyValues,
|
|
id.to_nscsspropertyid(),
|
|
)
|
|
};
|
|
|
|
unsafe {
|
|
(*pair).mServoDeclarationBlock.set_arc_leaky(
|
|
Arc::new(global_style_data.shared_lock.wrap(
|
|
PropertyDeclarationBlock::with_one(
|
|
declaration.clone(),
|
|
Importance::Normal,
|
|
)
|
|
))
|
|
);
|
|
}
|
|
|
|
if current_offset == 0.0 {
|
|
properties_set_at_start.insert(id);
|
|
} else if current_offset == 1.0 {
|
|
properties_set_at_end.insert(id);
|
|
}
|
|
properties_set_at_current_offset.insert(id);
|
|
}
|
|
|
|
if custom_properties.any_normal() {
|
|
let pair = unsafe {
|
|
Gecko_AppendPropertyValuePair(
|
|
&mut (*keyframe).mPropertyValues,
|
|
nsCSSPropertyID::eCSSPropertyExtra_variable,
|
|
)
|
|
};
|
|
|
|
unsafe {
|
|
(*pair).mServoDeclarationBlock.set_arc_leaky(Arc::new(
|
|
global_style_data.shared_lock.wrap(custom_properties)
|
|
));
|
|
}
|
|
|
|
}
|
|
},
|
|
}
|
|
}
|
|
|
|
// Append property values that are missing in the initial or the final keyframes.
|
|
if !has_complete_initial_keyframe {
|
|
fill_in_missing_keyframe_values(
|
|
&animation.properties_changed,
|
|
inherited_timing_function,
|
|
&properties_set_at_start,
|
|
Offset::Zero,
|
|
keyframes,
|
|
);
|
|
}
|
|
if !has_complete_final_keyframe {
|
|
fill_in_missing_keyframe_values(
|
|
&animation.properties_changed,
|
|
inherited_timing_function,
|
|
&properties_set_at_end,
|
|
Offset::One,
|
|
keyframes,
|
|
);
|
|
}
|
|
true
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_GetFontFaceRules(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
rules: RawGeckoFontFaceRuleListBorrowedMut,
|
|
) {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
debug_assert!(rules.len() == 0);
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
|
|
let len: u32 = data
|
|
.stylist
|
|
.iter_extra_data_origins()
|
|
.map(|(d, _)| d.font_faces.len() as u32)
|
|
.sum();
|
|
|
|
// Reversed iterator because Gecko expects rules to appear sorted
|
|
// UserAgent first, Author last.
|
|
let font_face_iter = data
|
|
.stylist
|
|
.iter_extra_data_origins_rev()
|
|
.flat_map(|(d, o)| d.font_faces.iter().zip(iter::repeat(o)));
|
|
|
|
unsafe { rules.set_len(len) };
|
|
for (src, dest) in font_face_iter.zip(rules.iter_mut()) {
|
|
dest.mRule = src.0.read_with(&guard).clone().forget();
|
|
dest.mSheetType = src.1.into();
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_GetCounterStyleRule(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
name: *mut nsAtom,
|
|
) -> *mut nsCSSCounterStyleRule {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
|
|
unsafe {
|
|
Atom::with(name, |name| {
|
|
data.stylist
|
|
.iter_extra_data_origins()
|
|
.filter_map(|(d, _)| d.counter_styles.get(name))
|
|
.next()
|
|
})
|
|
}.map(|rule| {
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
rule.read_with(&guard).get()
|
|
}).unwrap_or(ptr::null_mut())
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_BuildFontFeatureValueSet(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
) -> *mut gfxFontFeatureValueSet {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
|
|
let has_rule =
|
|
data.stylist
|
|
.iter_extra_data_origins()
|
|
.any(|(d, _)| !d.font_feature_values.is_empty());
|
|
|
|
if !has_rule {
|
|
return ptr::null_mut();
|
|
}
|
|
|
|
let font_feature_values_iter =
|
|
data.stylist
|
|
.iter_extra_data_origins_rev()
|
|
.flat_map(|(d, _)| d.font_feature_values.iter());
|
|
|
|
let set = unsafe { Gecko_ConstructFontFeatureValueSet() };
|
|
for src in font_feature_values_iter {
|
|
let rule = src.read_with(&guard);
|
|
rule.set_at_rules(set);
|
|
}
|
|
set
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_ResolveForDeclarations(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
parent_style_context: ServoStyleContextBorrowedOrNull,
|
|
declarations: RawServoDeclarationBlockBorrowed,
|
|
) -> ServoStyleContextStrong {
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let guards = StylesheetGuards::same(&guard);
|
|
|
|
let parent_style = match parent_style_context {
|
|
Some(parent) => &*parent,
|
|
None => doc_data.default_computed_values(),
|
|
};
|
|
|
|
let declarations = Locked::<PropertyDeclarationBlock>::as_arc(&declarations);
|
|
|
|
doc_data.stylist.compute_for_declarations(
|
|
&guards,
|
|
parent_style,
|
|
declarations.clone_arc(),
|
|
).into()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_AddSizeOfExcludingThis(
|
|
malloc_size_of: GeckoMallocSizeOf,
|
|
malloc_enclosing_size_of: GeckoMallocSizeOf,
|
|
sizes: *mut ServoStyleSetSizes,
|
|
raw_data: RawServoStyleSetBorrowed
|
|
) {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow_mut();
|
|
let mut ops = MallocSizeOfOps::new(malloc_size_of.unwrap(),
|
|
Some(malloc_enclosing_size_of.unwrap()),
|
|
None);
|
|
let sizes = unsafe { sizes.as_mut() }.unwrap();
|
|
data.add_size_of(&mut ops, sizes);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_UACache_AddSizeOf(
|
|
malloc_size_of: GeckoMallocSizeOf,
|
|
malloc_enclosing_size_of: GeckoMallocSizeOf,
|
|
sizes: *mut ServoStyleSetSizes
|
|
) {
|
|
let mut ops = MallocSizeOfOps::new(malloc_size_of.unwrap(),
|
|
Some(malloc_enclosing_size_of.unwrap()),
|
|
None);
|
|
let sizes = unsafe { sizes.as_mut() }.unwrap();
|
|
add_size_of_ua_cache(&mut ops, sizes);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_MightHaveAttributeDependency(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
local_name: *mut nsAtom,
|
|
) -> bool {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let element = GeckoElement(element);
|
|
let mut has_dep = false;
|
|
|
|
unsafe {
|
|
Atom::with(local_name, |atom| {
|
|
has_dep = data.stylist.might_have_attribute_dependency(atom);
|
|
|
|
if !has_dep {
|
|
// TODO(emilio): Consider optimizing this storing attribute
|
|
// dependencies from UA sheets separately, so we could optimize
|
|
// the above lookup if cut_off_inheritance is true.
|
|
element.each_xbl_stylist(|stylist| {
|
|
has_dep =
|
|
has_dep || stylist.might_have_attribute_dependency(atom);
|
|
});
|
|
}
|
|
})
|
|
}
|
|
|
|
has_dep
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_HasStateDependency(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
state: u64,
|
|
) -> bool {
|
|
let element = GeckoElement(element);
|
|
|
|
let state = ElementState::from_bits_truncate(state);
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
|
|
let mut has_dep = data.stylist.has_state_dependency(state);
|
|
if !has_dep {
|
|
// TODO(emilio): Consider optimizing this storing attribute
|
|
// dependencies from UA sheets separately, so we could optimize
|
|
// the above lookup if cut_off_inheritance is true.
|
|
element.each_xbl_stylist(|stylist| {
|
|
has_dep = has_dep || stylist.has_state_dependency(state);
|
|
});
|
|
}
|
|
|
|
has_dep
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_StyleSet_HasDocumentStateDependency(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
state: u64,
|
|
) -> bool {
|
|
let state = DocumentState::from_bits_truncate(state);
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
|
|
data.stylist.has_document_state_dependency(state)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_GetCustomPropertyValue(
|
|
computed_values: ServoStyleContextBorrowed,
|
|
name: *const nsAString,
|
|
value: *mut nsAString,
|
|
) -> bool {
|
|
let custom_properties = match computed_values.custom_properties() {
|
|
Some(p) => p,
|
|
None => return false,
|
|
};
|
|
|
|
let name = unsafe { Atom::from((&*name)) };
|
|
let computed_value = match custom_properties.get(&name) {
|
|
Some(v) => v,
|
|
None => return false,
|
|
};
|
|
|
|
computed_value.to_css(unsafe { value.as_mut().unwrap() }).unwrap();
|
|
true
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_GetCustomPropertiesCount(computed_values: ServoStyleContextBorrowed) -> u32 {
|
|
match computed_values.custom_properties() {
|
|
Some(p) => p.len() as u32,
|
|
None => 0,
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_GetCustomPropertyNameAt(
|
|
computed_values: ServoStyleContextBorrowed,
|
|
index: u32,
|
|
name: *mut nsAString,
|
|
) -> bool {
|
|
let custom_properties = match computed_values.custom_properties() {
|
|
Some(p) => p,
|
|
None => return false,
|
|
};
|
|
|
|
let property_name = match custom_properties.get_key_at(index) {
|
|
Some(n) => n,
|
|
None => return false,
|
|
};
|
|
|
|
let name = unsafe { name.as_mut().unwrap() };
|
|
name.assign(&*property_name.as_slice());
|
|
|
|
true
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_ReleaseArcStringData(string: *const RawOffsetArc<RustString>) {
|
|
let string = string as *const RawOffsetArc<String>;
|
|
// Cause RawOffsetArc::drop to run, releasing the strong reference to the string data.
|
|
let _ = ptr::read(string);
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_CloneArcStringData(
|
|
string: *const RawOffsetArc<RustString>,
|
|
) -> RawOffsetArc<RustString> {
|
|
let string = string as *const RawOffsetArc<String>;
|
|
let cloned = (*string).clone();
|
|
mem::transmute::<_, RawOffsetArc<RustString>>(cloned)
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_GetArcStringData(
|
|
string: *const RustString,
|
|
utf8_chars: *mut *const u8,
|
|
utf8_len: *mut u32,
|
|
) {
|
|
let string = &*(string as *const String);
|
|
*utf8_len = string.len() as u32;
|
|
*utf8_chars = string.as_ptr();
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ProcessInvalidations(
|
|
set: RawServoStyleSetBorrowed,
|
|
element: RawGeckoElementBorrowed,
|
|
snapshots: *const ServoElementSnapshotTable,
|
|
) {
|
|
debug_assert!(!snapshots.is_null());
|
|
|
|
let element = GeckoElement(element);
|
|
debug_assert!(element.has_snapshot());
|
|
debug_assert!(!element.handled_snapshot());
|
|
|
|
let mut data = element.mutate_data();
|
|
debug_assert!(data.is_some());
|
|
|
|
let global_style_data = &*GLOBAL_STYLE_DATA;
|
|
let guard = global_style_data.shared_lock.read();
|
|
let per_doc_data = PerDocumentStyleData::from_ffi(set).borrow();
|
|
let shared_style_context = create_shared_context(&global_style_data,
|
|
&guard,
|
|
&per_doc_data,
|
|
TraversalFlags::empty(),
|
|
unsafe { &*snapshots });
|
|
let mut data = data.as_mut().map(|d| &mut **d);
|
|
|
|
if let Some(ref mut data) = data {
|
|
// FIXME(emilio): Ideally we could share the nth-index-cache across all
|
|
// the elements?
|
|
let result = data.invalidate_style_if_needed(
|
|
element,
|
|
&shared_style_context,
|
|
None,
|
|
&mut NthIndexCache::default(),
|
|
);
|
|
|
|
if result.has_invalidated_siblings() {
|
|
let parent = element.traversal_parent().expect("How could we invalidate siblings without a common parent?");
|
|
unsafe {
|
|
parent.set_dirty_descendants();
|
|
bindings::Gecko_NoteDirtySubtreeForInvalidation(parent.0);
|
|
}
|
|
} else if result.has_invalidated_descendants() {
|
|
unsafe { bindings::Gecko_NoteDirtySubtreeForInvalidation(element.0) };
|
|
} else if result.has_invalidated_self() {
|
|
unsafe { bindings::Gecko_NoteDirtyElement(element.0) };
|
|
}
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_HasPendingRestyleAncestor(element: RawGeckoElementBorrowed) -> bool {
|
|
let mut element = Some(GeckoElement(element));
|
|
while let Some(e) = element {
|
|
if e.has_animations() {
|
|
return true;
|
|
}
|
|
|
|
// If the element needs a frame, it means that we haven't styled it yet
|
|
// after it got inserted in the document, and thus we may need to do
|
|
// that for transitions and animations to trigger.
|
|
if e.needs_frame() {
|
|
return true;
|
|
}
|
|
|
|
if let Some(data) = e.borrow_data() {
|
|
if !data.hint.is_empty() {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
element = e.traversal_parent();
|
|
}
|
|
false
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SelectorList_Parse(
|
|
selector_list: *const nsACString,
|
|
) -> *mut RawServoSelectorList {
|
|
use style::selector_parser::SelectorParser;
|
|
|
|
debug_assert!(!selector_list.is_null());
|
|
|
|
let input = (*selector_list).as_str_unchecked();
|
|
let selector_list = match SelectorParser::parse_author_origin_no_namespace(&input) {
|
|
Ok(selector_list) => selector_list,
|
|
Err(..) => return ptr::null_mut(),
|
|
};
|
|
|
|
Box::into_raw(Box::new(selector_list)) as *mut RawServoSelectorList
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SelectorList_Drop(list: RawServoSelectorListOwned) {
|
|
let _ = list.into_box::<::selectors::SelectorList<SelectorImpl>>();
|
|
}
|
|
|
|
fn parse_color(
|
|
value: &str,
|
|
error_reporter: Option<&ErrorReporter>,
|
|
) -> Result<specified::Color, ()> {
|
|
let mut input = ParserInput::new(value);
|
|
let mut parser = Parser::new(&mut input);
|
|
let url_data = unsafe { dummy_url_data() };
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
url_data,
|
|
Some(CssRuleType::Style),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
|
|
let start_position = parser.position();
|
|
parser.parse_entirely(|i| specified::Color::parse(&context, i)).map_err(|err| {
|
|
if let Some(error_reporter) = error_reporter {
|
|
match err.kind {
|
|
ParseErrorKind::Custom(StyleParseErrorKind::ValueError(..)) => {
|
|
let location = err.location.clone();
|
|
let error = ContextualParseError::UnsupportedValue(
|
|
parser.slice_from(start_position),
|
|
err,
|
|
);
|
|
error_reporter.report(location, error);
|
|
}
|
|
// Ignore other kinds of errors that might be reported, such as
|
|
// ParseErrorKind::Basic(BasicParseErrorKind::UnexpectedToken),
|
|
// since Gecko doesn't report those to the error console.
|
|
_ => {}
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_IsValidCSSColor(
|
|
value: *const nsAString,
|
|
) -> bool {
|
|
let value = unsafe { (*value).to_string() };
|
|
parse_color(&value, None).is_ok()
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ComputeColor(
|
|
raw_data: RawServoStyleSetBorrowedOrNull,
|
|
current_color: structs::nscolor,
|
|
value: *const nsAString,
|
|
result_color: *mut structs::nscolor,
|
|
was_current_color: *mut bool,
|
|
loader: *mut Loader,
|
|
) -> bool {
|
|
use style::gecko;
|
|
|
|
let current_color = gecko::values::convert_nscolor_to_rgba(current_color);
|
|
let value = unsafe { (*value).to_string() };
|
|
let result_color = unsafe { result_color.as_mut().unwrap() };
|
|
|
|
let reporter = unsafe { loader.as_mut() }.map(|loader| {
|
|
// Make an ErrorReporter that will report errors as being "from DOM".
|
|
ErrorReporter::new(ptr::null_mut(), loader, ptr::null_mut())
|
|
});
|
|
|
|
match parse_color(&value, reporter.as_ref()) {
|
|
Ok(specified_color) => {
|
|
let computed_color = match raw_data {
|
|
Some(raw_data) => {
|
|
let data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let metrics = get_metrics_provider_for_product();
|
|
let mut conditions = Default::default();
|
|
let context = create_context(
|
|
&data,
|
|
&metrics,
|
|
data.stylist.device().default_computed_values(),
|
|
/* parent_style = */ None,
|
|
/* pseudo = */ None,
|
|
/* for_smil_animation = */ false,
|
|
&mut conditions,
|
|
);
|
|
specified_color.to_computed_color(Some(&context))
|
|
}
|
|
None => {
|
|
specified_color.to_computed_color(None)
|
|
}
|
|
};
|
|
|
|
match computed_color {
|
|
Some(computed_color) => {
|
|
let rgba = computed_color.to_rgba(current_color);
|
|
*result_color = gecko::values::convert_rgba_to_nscolor(&rgba);
|
|
if !was_current_color.is_null() {
|
|
unsafe {
|
|
*was_current_color = computed_color.is_currentcolor();
|
|
}
|
|
}
|
|
true
|
|
}
|
|
None => false,
|
|
}
|
|
}
|
|
Err(_) => false,
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseIntersectionObserverRootMargin(
|
|
value: *const nsAString,
|
|
result: *mut structs::nsCSSRect,
|
|
) -> bool {
|
|
let value = unsafe { value.as_ref().unwrap().to_string() };
|
|
let result = unsafe { result.as_mut().unwrap() };
|
|
|
|
let mut input = ParserInput::new(&value);
|
|
let mut parser = Parser::new(&mut input);
|
|
|
|
let url_data = unsafe { dummy_url_data() };
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
url_data,
|
|
Some(CssRuleType::Style),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
|
|
let margin = parser.parse_entirely(|p| {
|
|
IntersectionObserverRootMargin::parse(&context, p)
|
|
});
|
|
match margin {
|
|
Ok(margin) => {
|
|
let rect = margin.0;
|
|
result.mTop.set_from(rect.0);
|
|
result.mRight.set_from(rect.1);
|
|
result.mBottom.set_from(rect.2);
|
|
result.mLeft.set_from(rect.3);
|
|
true
|
|
}
|
|
Err(..) => false,
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseTransformIntoMatrix(
|
|
value: *const nsAString,
|
|
contain_3d: *mut bool,
|
|
result: *mut RawGeckoGfxMatrix4x4
|
|
) -> bool {
|
|
use style::properties::longhands::transform;
|
|
|
|
let string = unsafe { (*value).to_string() };
|
|
let mut input = ParserInput::new(&string);
|
|
let mut parser = Parser::new(&mut input);
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
unsafe { dummy_url_data() },
|
|
Some(CssRuleType::Style),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks
|
|
);
|
|
|
|
let transform = match parser.parse_entirely(|t| transform::parse(&context, t)) {
|
|
Ok(t) => t,
|
|
Err(..) => return false,
|
|
};
|
|
|
|
let (m, is_3d) = match transform.to_transform_3d_matrix(None) {
|
|
Ok(result) => result,
|
|
Err(..) => return false,
|
|
};
|
|
|
|
let result = unsafe { result.as_mut() }.expect("not a valid matrix");
|
|
let contain_3d = unsafe { contain_3d.as_mut() }.expect("not a valid bool");
|
|
*result = m.to_row_major_array();
|
|
*contain_3d = is_3d;
|
|
true
|
|
}
|
|
|
|
// https://drafts.csswg.org/css-font-loading/#dom-fontface-fontface
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseFontDescriptor(
|
|
desc_id: nsCSSFontDesc,
|
|
value: *const nsAString,
|
|
data: *mut URLExtraData,
|
|
result: nsCSSValueBorrowedMut,
|
|
) -> bool {
|
|
use cssparser::UnicodeRange;
|
|
use self::nsCSSFontDesc::*;
|
|
use style::computed_values::{font_feature_settings, font_stretch, font_style};
|
|
use style::font_face::{FontDisplay, FontWeight, Source};
|
|
use style::properties::longhands::font_language_override;
|
|
use style::values::computed::font::FamilyName;
|
|
|
|
let string = unsafe { (*value).to_string() };
|
|
let mut input = ParserInput::new(&string);
|
|
let mut parser = Parser::new(&mut input);
|
|
let url_data = unsafe { RefPtr::from_ptr_ref(&data) };
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
url_data,
|
|
Some(CssRuleType::FontFace),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
|
|
macro_rules! parse_font_desc {
|
|
(
|
|
valid = [ $( $v_enum_name: ident / $t: ty, )* ]
|
|
invalid = [ $( $i_enum_name: ident, )* ]
|
|
) => {
|
|
match desc_id {
|
|
$(
|
|
$v_enum_name => {
|
|
let f = match parser.parse_entirely(|i| <$t as Parse>::parse(&context, i)) {
|
|
Ok(f) => f,
|
|
Err(..) => return false,
|
|
};
|
|
result.set_from(f);
|
|
},
|
|
)*
|
|
$(
|
|
$i_enum_name => {
|
|
debug_assert!(false, "$i_enum_name is not a valid font descriptor");
|
|
return false;
|
|
},
|
|
)*
|
|
}
|
|
}
|
|
}
|
|
|
|
// We implement the parser of each arm according to the implementation of @font-face rule.
|
|
// see component/style/font_face.rs for more detail.
|
|
parse_font_desc!(
|
|
valid = [
|
|
eCSSFontDesc_Family / FamilyName,
|
|
eCSSFontDesc_Style / font_style::T,
|
|
eCSSFontDesc_Weight / FontWeight,
|
|
eCSSFontDesc_Stretch / font_stretch::T,
|
|
eCSSFontDesc_Src / Vec<Source>,
|
|
eCSSFontDesc_UnicodeRange / Vec<UnicodeRange>,
|
|
eCSSFontDesc_FontFeatureSettings / font_feature_settings::T,
|
|
eCSSFontDesc_FontLanguageOverride / font_language_override::SpecifiedValue,
|
|
eCSSFontDesc_Display / FontDisplay,
|
|
]
|
|
invalid = [
|
|
eCSSFontDesc_UNKNOWN,
|
|
eCSSFontDesc_COUNT,
|
|
]
|
|
);
|
|
|
|
true
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseFontShorthandForMatching(
|
|
value: *const nsAString,
|
|
data: *mut URLExtraData,
|
|
family: *mut structs::RefPtr<structs::SharedFontList>,
|
|
style: nsCSSValueBorrowedMut,
|
|
stretch: nsCSSValueBorrowedMut,
|
|
weight: nsCSSValueBorrowedMut
|
|
) -> bool {
|
|
use style::properties::longhands::{font_stretch, font_style};
|
|
use style::properties::shorthands::font;
|
|
use style::values::specified::font::{FontFamily, FontWeight};
|
|
|
|
let string = unsafe { (*value).to_string() };
|
|
let mut input = ParserInput::new(&string);
|
|
let mut parser = Parser::new(&mut input);
|
|
let url_data = unsafe { RefPtr::from_ptr_ref(&data) };
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
url_data,
|
|
Some(CssRuleType::FontFace),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
|
|
let font = match parser.parse_entirely(|f| font::parse_value(&context, f)) {
|
|
Ok(f) => f,
|
|
Err(..) => return false,
|
|
};
|
|
|
|
// The system font is not acceptable, so we return false.
|
|
let family = unsafe { &mut *family };
|
|
match font.font_family {
|
|
FontFamily::Values(list) => family.set_move(list.0),
|
|
FontFamily::System(_) => return false,
|
|
}
|
|
style.set_from(match font.font_style {
|
|
font_style::SpecifiedValue::Keyword(kw) => kw,
|
|
font_style::SpecifiedValue::System(_) => return false,
|
|
});
|
|
stretch.set_from(match font.font_stretch {
|
|
font_stretch::SpecifiedValue::Keyword(kw) => kw,
|
|
font_stretch::SpecifiedValue::System(_) => return false,
|
|
});
|
|
match font.font_weight {
|
|
FontWeight::Weight(w) => weight.set_from(w),
|
|
FontWeight::Normal => weight.set_enum(structs::NS_STYLE_FONT_WEIGHT_NORMAL as i32),
|
|
FontWeight::Bold => weight.set_enum(structs::NS_STYLE_FONT_WEIGHT_BOLD as i32),
|
|
// Resolve relative font weights against the initial of font-weight
|
|
// (normal, which is equivalent to 400).
|
|
FontWeight::Bolder => weight.set_enum(structs::NS_FONT_WEIGHT_BOLD as i32),
|
|
FontWeight::Lighter => weight.set_enum(structs::NS_FONT_WEIGHT_THIN as i32),
|
|
FontWeight::System(_) => return false,
|
|
}
|
|
|
|
true
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SourceSizeList_Parse(
|
|
value: *const nsACString,
|
|
) -> *mut RawServoSourceSizeList {
|
|
let value = (*value).as_str_unchecked();
|
|
let mut input = ParserInput::new(value);
|
|
let mut parser = Parser::new(&mut input);
|
|
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
dummy_url_data(),
|
|
Some(CssRuleType::Style),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
|
|
// NB: Intentionally not calling parse_entirely.
|
|
let list = SourceSizeList::parse(&context, &mut parser);
|
|
Box::into_raw(Box::new(list)) as *mut _
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SourceSizeList_Evaluate(
|
|
raw_data: RawServoStyleSetBorrowed,
|
|
list: RawServoSourceSizeListBorrowedOrNull,
|
|
) -> i32 {
|
|
let doc_data = PerDocumentStyleData::from_ffi(raw_data).borrow();
|
|
let device = doc_data.stylist.device();
|
|
let quirks_mode = doc_data.stylist.quirks_mode();
|
|
|
|
let result = match list {
|
|
Some(list) => {
|
|
SourceSizeList::from_ffi(list).evaluate(device, quirks_mode)
|
|
}
|
|
None => {
|
|
SourceSizeList::empty().evaluate(device, quirks_mode)
|
|
}
|
|
};
|
|
|
|
result.0
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn Servo_SourceSizeList_Drop(list: RawServoSourceSizeListOwned) {
|
|
let _ = list.into_box::<SourceSizeList>();
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseCounterStyleName(
|
|
value: *const nsACString,
|
|
) -> *mut nsAtom {
|
|
let value = unsafe { value.as_ref().unwrap().as_str_unchecked() };
|
|
let mut input = ParserInput::new(&value);
|
|
let mut parser = Parser::new(&mut input);
|
|
match parser.parse_entirely(counter_style::parse_counter_style_name_definition) {
|
|
Ok(name) => name.0.into_addrefed(),
|
|
Err(_) => ptr::null_mut(),
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub extern "C" fn Servo_ParseCounterStyleDescriptor(
|
|
descriptor: nsCSSCounterDesc,
|
|
value: *const nsACString,
|
|
raw_extra_data: *mut URLExtraData,
|
|
result: *mut nsCSSValue,
|
|
) -> bool {
|
|
let value = unsafe { value.as_ref().unwrap().as_str_unchecked() };
|
|
let url_data = unsafe {
|
|
if raw_extra_data.is_null() {
|
|
dummy_url_data()
|
|
} else {
|
|
RefPtr::from_ptr_ref(&raw_extra_data)
|
|
}
|
|
};
|
|
let result = unsafe { result.as_mut().unwrap() };
|
|
let mut input = ParserInput::new(&value);
|
|
let mut parser = Parser::new(&mut input);
|
|
let context = ParserContext::new(
|
|
Origin::Author,
|
|
url_data,
|
|
Some(CssRuleType::CounterStyle),
|
|
ParsingMode::DEFAULT,
|
|
QuirksMode::NoQuirks,
|
|
);
|
|
counter_style::parse_counter_style_descriptor(
|
|
&context,
|
|
&mut parser,
|
|
descriptor,
|
|
result,
|
|
).is_ok()
|
|
}
|