Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-03 12:40:06 +01:00
Code Issues Projects Releases Packages Wiki Activity

Auto merge of #23325 - emilio:gecko-sync, r=emilio

Browse source 
style: Sync changes from mozilla-central.

See each individual commit for details.

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/23325)
<!-- Reviewable:end -->
This commit is contained in:
bors-servo 2019-05-08 07:46:34 -04:00 • committed by GitHub
commit ea71b35220
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
53 changed files with 979 additions and 886 deletions
Download patch file Download diff file Expand all files Collapse all files

11
components/layout/display_list/gradient.rs
View file

@ -12,7 +12,7 @@ use style::values::computed::image::{EndingShape, LineDirection};
use style::values::computed::{Angle, GradientItem, LengthPercentage, Percentage, Position};
use style::values::generics::image::EndingShape as GenericEndingShape;
use style::values::generics::image::GradientItem as GenericGradientItem;
use style::values::generics::image::{Circle, Ellipse, ShapeExtent};
use style::values::generics::image::{Circle, ColorStop, Ellipse, ShapeExtent};
use style::values::specified::position::{X, Y};
use webrender_api::{ExtendMode, Gradient, GradientBuilder, GradientStop, RadialGradient};
@ -92,7 +92,14 @@ fn convert_gradient_stops(
let mut stop_items = gradient_items
.iter()
.filter_map(|item| match *item {
GenericGradientItem::ColorStop(ref stop) => Some(*stop),
GenericGradientItem::SimpleColorStop(color) => Some(ColorStop {
color,
position: None,
}),
GenericGradientItem::ComplexColorStop { color, position } => Some(ColorStop {
color,
position: Some(position),
}),
_ => None,
})
.collect::<Vec<_>>();

107
components/layout/fragment.rs
View file

@ -61,8 +61,8 @@ use style::selector_parser::RestyleDamage;
use style::servo::restyle_damage::ServoRestyleDamage;
use style::str::char_is_whitespace;
use style::values::computed::counters::ContentItem;
use style::values::computed::{LengthPercentage, LengthPercentageOrAuto, Size};
use style::values::generics::box_::{Perspective, VerticalAlign};
use style::values::computed::{LengthPercentage, LengthPercentageOrAuto, Size, VerticalAlign};
use style::values::generics::box_::{Perspective, VerticalAlignKeyword};
use style::values::generics::transform;
use style::Zero;
use webrender_api::{self, LayoutTransform};
@ -2397,47 +2397,49 @@ impl Fragment {
// FIXME(#5624, pcwalton): This passes our current reftests but isn't the right thing
// to do.
match style.get_box().vertical_align {
VerticalAlign::Baseline => {},
VerticalAlign::Middle => {
let font_metrics =
with_thread_local_font_context(layout_context, |font_context| {
text::font_metrics_for_style(font_context, self.style.clone_font())
});
offset += (content_inline_metrics.ascent -
content_inline_metrics.space_below_baseline -
font_metrics.x_height)
.scale_by(0.5)
},
VerticalAlign::Sub => {
offset += minimum_line_metrics
.space_needed()
.scale_by(FONT_SUBSCRIPT_OFFSET_RATIO)
},
VerticalAlign::Super => {
offset -= minimum_line_metrics
.space_needed()
.scale_by(FONT_SUPERSCRIPT_OFFSET_RATIO)
},
VerticalAlign::TextTop => {
offset = self.content_inline_metrics(layout_context).ascent -
minimum_line_metrics.space_above_baseline
},
VerticalAlign::TextBottom => {
offset = minimum_line_metrics.space_below_baseline -
self.content_inline_metrics(layout_context)
.space_below_baseline
},
VerticalAlign::Top => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset =
content_inline_metrics.ascent - actual_line_metrics.space_above_baseline
}
},
VerticalAlign::Bottom => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset = actual_line_metrics.space_below_baseline -
content_inline_metrics.space_below_baseline
}
VerticalAlign::Keyword(kw) => match kw {
VerticalAlignKeyword::Baseline => {},
VerticalAlignKeyword::Middle => {
let font_metrics =
with_thread_local_font_context(layout_context, |font_context| {
text::font_metrics_for_style(font_context, self.style.clone_font())
});
offset += (content_inline_metrics.ascent -
content_inline_metrics.space_below_baseline -
font_metrics.x_height)
.scale_by(0.5)
},
VerticalAlignKeyword::Sub => {
offset += minimum_line_metrics
.space_needed()
.scale_by(FONT_SUBSCRIPT_OFFSET_RATIO)
},
VerticalAlignKeyword::Super => {
offset -= minimum_line_metrics
.space_needed()
.scale_by(FONT_SUPERSCRIPT_OFFSET_RATIO)
},
VerticalAlignKeyword::TextTop => {
offset = self.content_inline_metrics(layout_context).ascent -
minimum_line_metrics.space_above_baseline
},
VerticalAlignKeyword::TextBottom => {
offset = minimum_line_metrics.space_below_baseline -
self.content_inline_metrics(layout_context)
.space_below_baseline
},
VerticalAlignKeyword::Top => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset = content_inline_metrics.ascent -
actual_line_metrics.space_above_baseline
}
},
VerticalAlignKeyword::Bottom => {
if let Some(actual_line_metrics) = actual_line_metrics {
offset = actual_line_metrics.space_below_baseline -
content_inline_metrics.space_below_baseline
}
},
},
VerticalAlign::Length(ref lp) => {
offset -= lp.to_used_value(minimum_line_metrics.space_needed());
@ -3087,15 +3089,22 @@ impl Fragment {
/// Returns true if any of the inline styles associated with this fragment have
/// `vertical-align` set to `top` or `bottom`.
pub fn is_vertically_aligned_to_top_or_bottom(&self) -> bool {
match self.style.get_box().vertical_align {
VerticalAlign::Top | VerticalAlign::Bottom => return true,
_ => {},
fn is_top_or_bottom(v: &VerticalAlign) -> bool {
match *v {
VerticalAlign::Keyword(VerticalAlignKeyword::Top) |
VerticalAlign::Keyword(VerticalAlignKeyword::Bottom) => true,
_ => false,
}
}
if is_top_or_bottom(&self.style.get_box().vertical_align) {
return true;
}
if let Some(ref inline_context) = self.inline_context {
for node in &inline_context.nodes {
match node.style.get_box().vertical_align {
VerticalAlign::Top | VerticalAlign::Bottom => return true,
_ => {},
if is_top_or_bottom(&node.style.get_box().vertical_align) {
return true;
}
}
}

31
components/layout/inline.rs
View file

@ -41,7 +41,7 @@ use style::logical_geometry::{LogicalRect, LogicalSize, WritingMode};
use style::properties::ComputedValues;
use style::servo::restyle_damage::ServoRestyleDamage;
use style::values::computed::box_::VerticalAlign;
use style::values::generics::box_::VerticalAlign as GenericVerticalAlign;
use style::values::generics::box_::VerticalAlignKeyword;
use style::values::specified::text::TextOverflowSide;
use unicode_bidi as bidi;
@ -1269,13 +1269,13 @@ impl InlineFlow {
let mut largest_block_size_for_top_fragments = Au(0);
let mut largest_block_size_for_bottom_fragments = Au(0);
// We use `VerticalAlign::Baseline` here because `vertical-align` must
// We use `VerticalAlign::baseline()` here because `vertical-align` must
// not apply to the inside of inline blocks.
update_line_metrics_for_fragment(
&mut line_metrics,
&inline_metrics,
style.get_box().display,
GenericVerticalAlign::Baseline,
VerticalAlign::baseline(),
&mut largest_block_size_for_top_fragments,
&mut largest_block_size_for_bottom_fragments,
);
@ -1322,11 +1322,20 @@ impl InlineFlow {
largest_block_size_for_top_fragments: &mut Au,
largest_block_size_for_bottom_fragments: &mut Au,
) {
// FIXME(emilio): This should probably be handled.
let vertical_align_value = match vertical_align_value {
VerticalAlign::Keyword(kw) => kw,
VerticalAlign::Length(..) => {
*line_metrics = line_metrics.new_metrics_for_fragment(inline_metrics);
return;
},
};
match (display_value, vertical_align_value) {
(Display::Inline, GenericVerticalAlign::Top) |
(Display::Block, GenericVerticalAlign::Top) |
(Display::InlineFlex, GenericVerticalAlign::Top) |
(Display::InlineBlock, GenericVerticalAlign::Top)
(Display::Inline, VerticalAlignKeyword::Top) |
(Display::Block, VerticalAlignKeyword::Top) |
(Display::InlineFlex, VerticalAlignKeyword::Top) |
(Display::InlineBlock, VerticalAlignKeyword::Top)
if inline_metrics.space_above_baseline >= Au(0) =>
{
*largest_block_size_for_top_fragments = max(
@ -1334,10 +1343,10 @@ impl InlineFlow {
inline_metrics.space_above_baseline + inline_metrics.space_below_baseline,
)
},
(Display::Inline, GenericVerticalAlign::Bottom) |
(Display::Block, GenericVerticalAlign::Bottom) |
(Display::InlineFlex, GenericVerticalAlign::Bottom) |
(Display::InlineBlock, GenericVerticalAlign::Bottom)
(Display::Inline, VerticalAlignKeyword::Bottom) |
(Display::Block, VerticalAlignKeyword::Bottom) |
(Display::InlineFlex, VerticalAlignKeyword::Bottom) |
(Display::InlineBlock, VerticalAlignKeyword::Bottom)
if inline_metrics.space_below_baseline >= Au(0) =>
{
*largest_block_size_for_bottom_fragments = max(

8
components/layout/table_cell.rs
View file

@ -23,7 +23,7 @@ use style::logical_geometry::{LogicalMargin, LogicalRect, LogicalSize, WritingMo
use style::properties::ComputedValues;
use style::values::computed::length::Size;
use style::values::computed::Color;
use style::values::generics::box_::VerticalAlign;
use style::values::generics::box_::{VerticalAlign, VerticalAlignKeyword};
use style::values::specified::BorderStyle;
#[allow(unsafe_code)]
@ -138,11 +138,11 @@ impl TableCellFlow {
self.block_flow.fragment.border_padding.block_start_end();
let kids_self_gap = self_size - kids_size;
// This offset should also account for VerticalAlign::Baseline.
// This offset should also account for VerticalAlign::baseline.
// Need max cell ascent from the first row of this cell.
let offset = match self.block_flow.fragment.style().get_box().vertical_align {
VerticalAlign::Middle => kids_self_gap / 2,
VerticalAlign::Bottom => kids_self_gap,
VerticalAlign::Keyword(VerticalAlignKeyword::Middle) => kids_self_gap / 2,
VerticalAlign::Keyword(VerticalAlignKeyword::Bottom) => kids_self_gap,
_ => Au(0),
};
if offset == Au(0) {

12
components/layout/text.rs
View file

@ -21,13 +21,13 @@ use std::collections::LinkedList;
use std::mem;
use std::sync::Arc;
use style::computed_values::text_rendering::T as TextRendering;
use style::computed_values::text_transform::T as TextTransform;
use style::computed_values::white_space::T as WhiteSpace;
use style::computed_values::word_break::T as WordBreak;
use style::logical_geometry::{LogicalSize, WritingMode};
use style::properties::style_structs::Font as FontStyleStruct;
use style::properties::ComputedValues;
use style::values::generics::text::LineHeight;
use style::values::specified::text::{TextTransform, TextTransformCase};
use unicode_bidi as bidi;
use unicode_script::{get_script, Script};
use xi_unicode::LineBreakLeafIter;
@ -738,23 +738,23 @@ fn apply_style_transform_if_necessary(
last_whitespace: bool,
is_first_run: bool,
) {
match text_transform {
TextTransform::None => {},
TextTransform::Uppercase => {
match text_transform.case_ {
TextTransformCase::None => {},
TextTransformCase::Uppercase => {
let original = string[first_character_position..].to_owned();
string.truncate(first_character_position);
for ch in original.chars().flat_map(|ch| ch.to_uppercase()) {
string.push(ch);
}
},
TextTransform::Lowercase => {
TextTransformCase::Lowercase => {
let original = string[first_character_position..].to_owned();
string.truncate(first_character_position);
for ch in original.chars().flat_map(|ch| ch.to_lowercase()) {
string.push(ch);
}
},
TextTransform::Capitalize => {
TextTransformCase::Capitalize => {
let original = string[first_character_position..].to_owned();
string.truncate(first_character_position);

11
components/layout_thread/dom_wrapper.rs
View file

@ -972,6 +972,11 @@ impl<'le> ::selectors::Element for ServoLayoutElement<'le> {
}
}
#[inline]
fn is_part(&self, _name: &Atom) -> bool {
false
}
#[inline]
fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
unsafe { self.element.has_class_for_layout(name, case_sensitivity) }
@ -1484,6 +1489,12 @@ impl<'le> ::selectors::Element for ServoThreadSafeLayoutElement<'le> {
false
}
#[inline]
fn is_part(&self, _name: &Atom) -> bool {
debug!("ServoThreadSafeLayoutElement::is_part called");
false
}
fn has_class(&self, _name: &Atom, _case_sensitivity: CaseSensitivity) -> bool {
debug!("ServoThreadSafeLayoutElement::has_class called");
false

7
components/malloc_size_of/lib.rs
View file

@ -747,6 +747,7 @@ where
Component::ExplicitUniversalType |
Component::LocalName(..) |
Component::ID(..) |
Component::Part(..) |
Component::Class(..) |
Component::AttributeInNoNamespaceExists { .. } |
Component::AttributeInNoNamespace { .. } |
@ -776,12 +777,6 @@ impl<Impl: selectors::parser::SelectorImpl> MallocSizeOf
}
}
impl MallocSizeOf for selectors::context::QuirksMode {
fn size_of(&self, _ops: &mut MallocSizeOfOps) -> usize {
0
}
}
impl MallocSizeOf for Void {
#[inline]
fn size_of(&self, _ops: &mut MallocSizeOfOps) -> usize {

4
components/script/dom/element.rs
View file

@ -3075,6 +3075,10 @@ impl<'a> SelectorsElement for DomRoot<Element> {
.map_or(false, |atom| case_sensitivity.eq_atom(id, atom))
}
fn is_part(&self, _name: &Atom) -> bool {
false
}
fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
Element::has_class(&**self, name, case_sensitivity)
}

2
components/selectors/builder.rs
View file

@ -270,7 +270,7 @@ where
Component::Combinator(..) => {
unreachable!("Found combinator in simple selectors vector?");
},
Component::PseudoElement(..) | Component::LocalName(..) => {
Component::Part(..) | Component::PseudoElement(..) | Component::LocalName(..) => {
specificity.element_selectors += 1
},
Component::Slotted(ref selector) => {

4
components/selectors/context.rs
View file

@ -279,13 +279,13 @@ where
/// Runs F with a given shadow host which is the root of the tree whose
/// rules we're matching.
#[inline]
pub fn with_shadow_host<F, E, R>(&mut self, host: Option<E>, f: F) -> R
pub fn with_shadow_host<F, E, R>(&mut self, host: E, f: F) -> R
where
E: Element,
F: FnOnce(&mut Self) -> R,
{
let original_host = self.current_host.take();
self.current_host = host.map(|h| h.opaque());
self.current_host = Some(host.opaque());
let result = f(self);
self.current_host = original_host;
result

3
components/selectors/matching.rs
View file

@ -450,6 +450,7 @@ where
element.containing_shadow_host()
},
Combinator::Part => element.containing_shadow_host(),
Combinator::SlotAssignment => {
debug_assert!(
context.current_host.is_some(),
@ -517,6 +518,7 @@ where
Combinator::Child |
Combinator::Descendant |
Combinator::SlotAssignment |
Combinator::Part |
Combinator::PseudoElement => SelectorMatchingResult::NotMatchedGlobally,
};
@ -671,6 +673,7 @@ where
match *selector {
Component::Combinator(_) => unreachable!(),
Component::Part(ref part) => element.is_part(part),
Component::Slotted(ref selector) => {
// <slots> are never flattened tree slottables.
!element.is_html_slot_element() &&

452
components/selectors/parser.rs
View file

@ -30,10 +30,7 @@ pub trait PseudoElement: Sized + ToCss {
/// Whether the pseudo-element supports a given state selector to the right
/// of it.
fn supports_pseudo_class(
&self,
_pseudo_class: &<Self::Impl as SelectorImpl>::NonTSPseudoClass,
) -> bool {
fn accepts_state_pseudo_classes(&self) -> bool {
false
}
@ -50,6 +47,11 @@ pub trait NonTSPseudoClass: Sized + ToCss {
/// Whether this pseudo-class is :active or :hover.
fn is_active_or_hover(&self) -> bool;
/// Whether this pseudo-class belongs to:
///
/// https://drafts.csswg.org/selectors-4/#useraction-pseudos
fn is_user_action_state(&self) -> bool;
}
/// Returns a Cow::Borrowed if `s` is already ASCII lowercase, and a
@ -64,6 +66,72 @@ fn to_ascii_lowercase(s: &str) -> Cow<str> {
}
}
bitflags! {
/// Flags that indicate at which point of parsing a selector are we.
struct SelectorParsingState: u8 {
/// Whether we're inside a negation. If we're inside a negation, we're
/// not allowed to add another negation or such, for example.
const INSIDE_NEGATION = 1 << 0;
/// Whether we've parsed a ::slotted() pseudo-element already.
///
/// If so, then we can only parse a subset of pseudo-elements, and
/// whatever comes after them if so.
const AFTER_SLOTTED = 1 << 1;
/// Whether we've parsed a ::part() pseudo-element already.
///
/// If so, then we can only parse a subset of pseudo-elements, and
/// whatever comes after them if so.
const AFTER_PART = 1 << 2;
/// Whether we've parsed a pseudo-element (as in, an
/// `Impl::PseudoElement` thus not accounting for `::slotted` or
/// `::part`) already.
///
/// If so, then other pseudo-elements and most other selectors are
/// disallowed.
const AFTER_PSEUDO_ELEMENT = 1 << 3;
/// Whether we've parsed a non-stateful pseudo-element (again, as-in
/// `Impl::PseudoElement`) already. If so, then other pseudo-classes are
/// disallowed. If this flag is set, `AFTER_PSEUDO_ELEMENT` must be set
/// as well.
const AFTER_NON_STATEFUL_PSEUDO_ELEMENT = 1 << 4;
/// Whether we are after any of the pseudo-like things.
const AFTER_PSEUDO = Self::AFTER_PART.bits | Self::AFTER_SLOTTED.bits | Self::AFTER_PSEUDO_ELEMENT.bits;
}
}
impl SelectorParsingState {
#[inline]
fn allows_functional_pseudo_classes(self) -> bool {
!self.intersects(SelectorParsingState::AFTER_PSEUDO)
}
#[inline]
fn allows_slotted(self) -> bool {
!self.intersects(SelectorParsingState::AFTER_PSEUDO)
}
// TODO(emilio): Should we allow other ::part()s after ::part()?
//
// See https://github.com/w3c/csswg-drafts/issues/3841
#[inline]
fn allows_part(self) -> bool {
!self.intersects(SelectorParsingState::AFTER_PSEUDO)
}
#[inline]
fn allows_non_functional_pseudo_classes(self) -> bool {
!self.intersects(
SelectorParsingState::AFTER_SLOTTED |
SelectorParsingState::AFTER_NON_STATEFUL_PSEUDO_ELEMENT,
)
}
#[inline]
fn allows_tree_structural_pseudo_classes(self) -> bool {
!self.intersects(SelectorParsingState::AFTER_PSEUDO)
}
}
pub type SelectorParseError<'i> = ParseError<'i, SelectorParseErrorKind<'i>>;
#[derive(Clone, Debug, PartialEq)]
@ -76,6 +144,7 @@ pub enum SelectorParseErrorKind<'i> {
NonCompoundSelector,
NonPseudoElementAfterSlotted,
InvalidPseudoElementAfterSlotted,
InvalidState,
UnexpectedTokenInAttributeSelector(Token<'i>),
PseudoElementExpectedColon(Token<'i>),
PseudoElementExpectedIdent(Token<'i>),
@ -108,6 +177,7 @@ macro_rules! with_all_bounds {
type AttrValue: $($InSelector)*;
type Identifier: $($InSelector)*;
type ClassName: $($InSelector)*;
type PartName: $($InSelector)*;
type LocalName: $($InSelector)* + Borrow<Self::BorrowedLocalName>;
type NamespaceUrl: $($CommonBounds)* + Default + Borrow<Self::BorrowedNamespaceUrl>;
type NamespacePrefix: $($InSelector)* + Default;
@ -143,17 +213,16 @@ pub trait Parser<'i> {
type Impl: SelectorImpl;
type Error: 'i + From<SelectorParseErrorKind<'i>>;
/// Whether the name is a pseudo-element that can be specified with
/// the single colon syntax in addition to the double-colon syntax.
fn pseudo_element_allows_single_colon(name: &str) -> bool {
is_css2_pseudo_element(name)
}
/// Whether to parse the `::slotted()` pseudo-element.
fn parse_slotted(&self) -> bool {
false
}
/// Whether to parse the `::part()` pseudo-element.
fn parse_part(&self) -> bool {
false
}
/// Whether to parse the `:host` pseudo-class.
fn parse_host(&self) -> bool {
false
@ -694,7 +763,8 @@ impl<'a, Impl: 'a + SelectorImpl> SelectorIter<'a, Impl> {
/// combinators to the left.
#[inline]
pub(crate) fn is_featureless_host_selector(&mut self) -> bool {
self.all(|component| matches!(*component, Component::Host(..))) &&
self.selector_length() > 0 &&
self.all(|component| matches!(*component, Component::Host(..))) &&
self.next_sequence().is_none()
}
@ -798,6 +868,9 @@ pub enum Combinator {
/// Another combinator used for ::slotted(), which represent the jump from
/// a node to its assigned slot.
SlotAssignment,
/// Another combinator used for `::part()`, which represents the jump from
/// the part to the containing shadow host.
Part,
}
impl Combinator {
@ -891,8 +964,7 @@ pub enum Component<Impl: SelectorImpl> {
LastOfType,
OnlyOfType,
NonTSPseudoClass(#[shmem(field_bound)] Impl::NonTSPseudoClass),
/// The ::slotted() pseudo-element (which isn't actually a pseudo-element,
/// and probably should be a pseudo-class):
/// The ::slotted() pseudo-element:
///
/// https://drafts.csswg.org/css-scoping/#slotted-pseudo
///
@ -904,6 +976,9 @@ pub enum Component<Impl: SelectorImpl> {
///
/// See https://github.com/w3c/csswg-drafts/issues/2158
Slotted(Selector<Impl>),
/// The `::part` pseudo-element.
/// https://drafts.csswg.org/css-shadow-parts/#part
Part(#[shmem(field_bound)] Impl::PartName),
/// The `:host` pseudo-class:
///
/// https://drafts.csswg.org/css-scoping/#host-selector
@ -1153,8 +1228,7 @@ impl ToCss for Combinator {
Combinator::Descendant => dest.write_str(" "),
Combinator::NextSibling => dest.write_str(" + "),
Combinator::LaterSibling => dest.write_str(" ~ "),
Combinator::PseudoElement => Ok(()),
Combinator::SlotAssignment => Ok(()),
Combinator::PseudoElement | Combinator::Part | Combinator::SlotAssignment => Ok(()),
}
}
}
@ -1193,6 +1267,11 @@ impl<Impl: SelectorImpl> ToCss for Component<Impl> {
selector.to_css(dest)?;
dest.write_char(')')
},
Part(ref part_name) => {
dest.write_str("::part(")?;
display_to_css_identifier(part_name, dest)?;
dest.write_char(')')
},
PseudoElement(ref p) => p.to_css(dest),
ID(ref s) => {
dest.write_char('#')?;
@ -1364,15 +1443,12 @@ where
{
let mut builder = SelectorBuilder::default();
let mut has_pseudo_element;
let mut slotted;
let mut has_pseudo_element = false;
let mut slotted = false;
'outer_loop: loop {
// Parse a sequence of simple selectors.
match parse_compound_selector(parser, input, &mut builder)? {
Some((has_pseudo, slot)) => {
has_pseudo_element = has_pseudo;
slotted = slot;
},
let state = match parse_compound_selector(parser, input, &mut builder)? {
Some(state) => state,
None => {
return Err(input.new_custom_error(if builder.has_combinators() {
SelectorParseErrorKind::DanglingCombinator
@ -1382,7 +1458,11 @@ where
},
};
if has_pseudo_element || slotted {
if state.intersects(SelectorParsingState::AFTER_PSEUDO) {
has_pseudo_element = state.intersects(SelectorParsingState::AFTER_PSEUDO_ELEMENT);
slotted = state.intersects(SelectorParsingState::AFTER_SLOTTED);
let part = state.intersects(SelectorParsingState::AFTER_PART);
debug_assert!(has_pseudo_element || slotted || part);
break;
}
@ -1420,6 +1500,8 @@ where
builder.push_combinator(combinator);
}
// TODO(emilio): We'll have to flag part() somehow as well, but we need more
// bits!
Ok(Selector(builder.build(has_pseudo_element, slotted)))
}
@ -1510,6 +1592,7 @@ enum SimpleSelectorParseResult<Impl: SelectorImpl> {
SimpleSelector(Component<Impl>),
PseudoElement(Impl::PseudoElement),
SlottedPseudo(Selector<Impl>),
PartPseudo(Impl::PartName),
}
#[derive(Debug)]
@ -1848,7 +1931,7 @@ where
Err(e) => return Err(e.into()),
};
if !is_type_sel {
match parse_one_simple_selector(parser, input, /* inside_negation = */ true)? {
match parse_one_simple_selector(parser, input, SelectorParsingState::INSIDE_NEGATION)? {
Some(SimpleSelectorParseResult::SimpleSelector(s)) => {
sequence.push(s);
},
@ -1856,6 +1939,7 @@ where
return Err(input.new_custom_error(SelectorParseErrorKind::EmptyNegation));
},
Some(SimpleSelectorParseResult::PseudoElement(_)) |
Some(SimpleSelectorParseResult::PartPseudo(_)) |
Some(SimpleSelectorParseResult::SlottedPseudo(_)) => {
let e = SelectorParseErrorKind::NonSimpleSelectorInNegation;
return Err(input.new_custom_error(e));
@ -1875,14 +1959,11 @@ where
///
/// `Err(())` means invalid selector.
/// `Ok(None)` is an empty selector
///
/// The booleans represent whether a pseudo-element has been parsed, and whether
/// ::slotted() has been parsed, respectively.
fn parse_compound_selector<'i, 't, P, Impl>(
parser: &P,
input: &mut CssParser<'i, 't>,
builder: &mut SelectorBuilder<Impl>,
) -> Result<Option<(bool, bool)>, ParseError<'i, P::Error>>
) -> Result<Option<SelectorParsingState>, ParseError<'i, P::Error>>
where
P: Parser<'i, Impl = Impl>,
Impl: SelectorImpl,
@ -1901,122 +1982,48 @@ where
empty = false;
}
let mut pseudo = false;
let mut slot = false;
let mut state = SelectorParsingState::empty();
loop {
let parse_result =
match parse_one_simple_selector(parser, input, /* inside_negation = */ false)? {
None => break,
Some(result) => result,
};
let parse_result = match parse_one_simple_selector(parser, input, state)? {
None => break,
Some(result) => result,
};
empty = false;
let slotted_selector;
let pseudo_element;
match parse_result {
SimpleSelectorParseResult::SimpleSelector(s) => {
builder.push_simple_selector(s);
continue;
},
SimpleSelectorParseResult::PseudoElement(p) => {
slotted_selector = None;
pseudo_element = Some(p);
SimpleSelectorParseResult::PartPseudo(part_name) => {
state.insert(SelectorParsingState::AFTER_PART);
builder.push_combinator(Combinator::Part);
builder.push_simple_selector(Component::Part(part_name));
},
SimpleSelectorParseResult::SlottedPseudo(selector) => {
slotted_selector = Some(selector);
let maybe_pseudo =
parse_one_simple_selector(parser, input, /* inside_negation = */ false)?;
pseudo_element = match maybe_pseudo {
None => None,
Some(SimpleSelectorParseResult::PseudoElement(pseudo)) => {
if !pseudo.valid_after_slotted() {
return Err(input.new_custom_error(
SelectorParseErrorKind::InvalidPseudoElementAfterSlotted,
));
}
Some(pseudo)
},
Some(SimpleSelectorParseResult::SimpleSelector(..)) |
Some(SimpleSelectorParseResult::SlottedPseudo(..)) => {
return Err(input.new_custom_error(
SelectorParseErrorKind::NonPseudoElementAfterSlotted,
));
},
};
state.insert(SelectorParsingState::AFTER_SLOTTED);
if !builder.is_empty() {
builder.push_combinator(Combinator::SlotAssignment);
}
builder.push_simple_selector(Component::Slotted(selector));
},
SimpleSelectorParseResult::PseudoElement(p) => {
state.insert(SelectorParsingState::AFTER_PSEUDO_ELEMENT);
if !p.accepts_state_pseudo_classes() {
state.insert(SelectorParsingState::AFTER_NON_STATEFUL_PSEUDO_ELEMENT);
}
if !builder.is_empty() {
builder.push_combinator(Combinator::PseudoElement);
}
builder.push_simple_selector(Component::PseudoElement(p));
},
}
debug_assert!(slotted_selector.is_some() || pseudo_element.is_some());
// Try to parse state to the right of the pseudo-element.
//
// There are only 3 allowable state selectors that can go on
// pseudo-elements as of right now.
let mut state_selectors = SmallVec::<[Component<Impl>; 3]>::new();
if let Some(ref p) = pseudo_element {
loop {
let location = input.current_source_location();
match input.next_including_whitespace() {
Ok(&Token::Colon) => {},
Ok(&Token::WhiteSpace(_)) | Err(_) => break,
Ok(t) => {
let e = SelectorParseErrorKind::PseudoElementExpectedColon(t.clone());
return Err(location.new_custom_error(e));
},
}
let location = input.current_source_location();
// TODO(emilio): Functional pseudo-classes too?
// We don't need it for now.
let name = match input.next_including_whitespace()? {
&Token::Ident(ref name) => name.clone(),
t => {
return Err(location.new_custom_error(
SelectorParseErrorKind::NoIdentForPseudo(t.clone()),
));
},
};
let pseudo_class = P::parse_non_ts_pseudo_class(parser, location, name.clone())?;
if !p.supports_pseudo_class(&pseudo_class) {
return Err(input.new_custom_error(
SelectorParseErrorKind::UnsupportedPseudoClassOrElement(name),
));
}
state_selectors.push(Component::NonTSPseudoClass(pseudo_class));
}
}
if let Some(slotted) = slotted_selector {
slot = true;
if !builder.is_empty() {
builder.push_combinator(Combinator::SlotAssignment);
}
builder.push_simple_selector(Component::Slotted(slotted));
}
if let Some(p) = pseudo_element {
pseudo = true;
if !builder.is_empty() {
builder.push_combinator(Combinator::PseudoElement);
}
builder.push_simple_selector(Component::PseudoElement(p));
for state_selector in state_selectors.drain() {
builder.push_simple_selector(state_selector);
}
}
break;
}
if empty {
// An empty selector is invalid.
Ok(None)
} else {
Ok(Some((pseudo, slot)))
Ok(Some(state))
}
}
@ -2024,12 +2031,16 @@ fn parse_functional_pseudo_class<'i, 't, P, Impl>(
parser: &P,
input: &mut CssParser<'i, 't>,
name: CowRcStr<'i>,
inside_negation: bool,
state: SelectorParsingState,
) -> Result<Component<Impl>, ParseError<'i, P::Error>>
where
P: Parser<'i, Impl = Impl>,
Impl: SelectorImpl,
{
if !state.allows_functional_pseudo_classes() {
return Err(input.new_custom_error(SelectorParseErrorKind::InvalidState));
}
debug_assert!(state.allows_tree_structural_pseudo_classes());
match_ignore_ascii_case! { &name,
"nth-child" => return Ok(parse_nth_pseudo_class(input, Component::NthChild)?),
"nth-of-type" => return Ok(parse_nth_pseudo_class(input, Component::NthOfType)?),
@ -2037,11 +2048,12 @@ where
"nth-last-of-type" => return Ok(parse_nth_pseudo_class(input, Component::NthLastOfType)?),
"host" => return Ok(Component::Host(Some(parse_inner_compound_selector(parser, input)?))),
"not" => {
if inside_negation {
if state.intersects(SelectorParsingState::INSIDE_NEGATION) {
return Err(input.new_custom_error(
SelectorParseErrorKind::UnexpectedIdent("not".into())
));
}
debug_assert!(state.is_empty());
return parse_negation(parser, input)
},
_ => {}
@ -2064,7 +2076,7 @@ where
/// Returns whether the name corresponds to a CSS2 pseudo-element that
/// can be specified with the single colon syntax (in addition to the
/// double-colon syntax, which can be used for all pseudo-elements).
pub fn is_css2_pseudo_element(name: &str) -> bool {
fn is_css2_pseudo_element(name: &str) -> bool {
// ** Do not add to this list! **
match_ignore_ascii_case! { name,
"before" | "after" | "first-line" | "first-letter" => true,
@ -2080,37 +2092,52 @@ pub fn is_css2_pseudo_element(name: &str) -> bool {
fn parse_one_simple_selector<'i, 't, P, Impl>(
parser: &P,
input: &mut CssParser<'i, 't>,
inside_negation: bool,
state: SelectorParsingState,
) -> Result<Option<SimpleSelectorParseResult<Impl>>, ParseError<'i, P::Error>>
where
P: Parser<'i, Impl = Impl>,
Impl: SelectorImpl,
{
let start = input.state();
// FIXME: remove clone() when lifetimes are non-lexical
match input.next_including_whitespace().map(|t| t.clone()) {
Ok(Token::IDHash(id)) => {
let id = Component::ID(id.as_ref().into());
Ok(Some(SimpleSelectorParseResult::SimpleSelector(id)))
let token = match input.next_including_whitespace().map(|t| t.clone()) {
Ok(t) => t,
Err(..) => {
input.reset(&start);
return Ok(None);
},
Ok(Token::Delim('.')) => {
};
Ok(Some(match token {
Token::IDHash(id) => {
if state.intersects(SelectorParsingState::AFTER_PSEUDO) {
return Err(input.new_custom_error(SelectorParseErrorKind::InvalidState));
}
let id = Component::ID(id.as_ref().into());
SimpleSelectorParseResult::SimpleSelector(id)
},
Token::Delim('.') => {
if state.intersects(SelectorParsingState::AFTER_PSEUDO) {
return Err(input.new_custom_error(SelectorParseErrorKind::InvalidState));
}
let location = input.current_source_location();
match *input.next_including_whitespace()? {
Token::Ident(ref class) => {
let class = Component::Class(class.as_ref().into());
Ok(Some(SimpleSelectorParseResult::SimpleSelector(class)))
},
let class = match *input.next_including_whitespace()? {
Token::Ident(ref class) => class,
ref t => {
let e = SelectorParseErrorKind::ClassNeedsIdent(t.clone());
Err(location.new_custom_error(e))
return Err(location.new_custom_error(e));
},
};
let class = Component::Class(class.as_ref().into());
SimpleSelectorParseResult::SimpleSelector(class)
},
Token::SquareBracketBlock => {
if state.intersects(SelectorParsingState::AFTER_PSEUDO) {
return Err(input.new_custom_error(SelectorParseErrorKind::InvalidState));
}
},
Ok(Token::SquareBracketBlock) => {
let attr = input.parse_nested_block(|input| parse_attribute_selector(parser, input))?;
Ok(Some(SimpleSelectorParseResult::SimpleSelector(attr)))
SimpleSelectorParseResult::SimpleSelector(attr)
},
Ok(Token::Colon) => {
Token::Colon => {
let location = input.current_source_location();
let (is_single_colon, next_token) = match input.next_including_whitespace()?.clone() {
Token::Colon => (false, input.next_including_whitespace()?.clone()),
@ -2124,72 +2151,102 @@ where
return Err(input.new_custom_error(e));
},
};
let is_pseudo_element =
!is_single_colon || P::pseudo_element_allows_single_colon(&name);
let is_pseudo_element = !is_single_colon || is_css2_pseudo_element(&name);
if is_pseudo_element {
let parse_result = if is_functional {
if state.intersects(SelectorParsingState::AFTER_PSEUDO_ELEMENT) {
return Err(input.new_custom_error(SelectorParseErrorKind::InvalidState));
}
let pseudo_element = if is_functional {
if P::parse_part(parser) && name.eq_ignore_ascii_case("part") {
if !state.allows_part() {
return Err(
input.new_custom_error(SelectorParseErrorKind::InvalidState)
);
}
let name = input.parse_nested_block(|input| {
Ok(input.expect_ident()?.as_ref().into())
})?;
return Ok(Some(SimpleSelectorParseResult::PartPseudo(name)));
}
if P::parse_slotted(parser) && name.eq_ignore_ascii_case("slotted") {
if !state.allows_slotted() {
return Err(
input.new_custom_error(SelectorParseErrorKind::InvalidState)
);
}
let selector = input.parse_nested_block(|input| {
parse_inner_compound_selector(parser, input)
})?;
SimpleSelectorParseResult::SlottedPseudo(selector)
} else {
let selector = input.parse_nested_block(|input| {
P::parse_functional_pseudo_element(parser, name, input)
})?;
SimpleSelectorParseResult::PseudoElement(selector)
return Ok(Some(SimpleSelectorParseResult::SlottedPseudo(selector)));
}
input.parse_nested_block(|input| {
P::parse_functional_pseudo_element(parser, name, input)
})?
} else {
SimpleSelectorParseResult::PseudoElement(P::parse_pseudo_element(
parser, location, name,
)?)
P::parse_pseudo_element(parser, location, name)?
};
Ok(Some(parse_result))
if state.intersects(SelectorParsingState::AFTER_SLOTTED) &&
!pseudo_element.valid_after_slotted()
{
return Err(input.new_custom_error(SelectorParseErrorKind::InvalidState));
}
SimpleSelectorParseResult::PseudoElement(pseudo_element)
} else {
let pseudo_class = if is_functional {
input.parse_nested_block(|input| {
parse_functional_pseudo_class(parser, input, name, inside_negation)
parse_functional_pseudo_class(parser, input, name, state)
})?
} else {
parse_simple_pseudo_class(parser, location, name)?
parse_simple_pseudo_class(parser, location, name, state)?
};
Ok(Some(SimpleSelectorParseResult::SimpleSelector(
pseudo_class,
)))
SimpleSelectorParseResult::SimpleSelector(pseudo_class)
}
},
_ => {
input.reset(&start);
Ok(None)
return Ok(None);
},
}
}))
}
fn parse_simple_pseudo_class<'i, P, Impl>(
parser: &P,
location: SourceLocation,
name: CowRcStr<'i>,
state: SelectorParsingState,
) -> Result<Component<Impl>, ParseError<'i, P::Error>>
where
P: Parser<'i, Impl = Impl>,
Impl: SelectorImpl,
{
(match_ignore_ascii_case! { &name,
"first-child" => Ok(Component::FirstChild),
"last-child" => Ok(Component::LastChild),
"only-child" => Ok(Component::OnlyChild),
"root" => Ok(Component::Root),
"empty" => Ok(Component::Empty),
"scope" => Ok(Component::Scope),
"host" if P::parse_host(parser) => Ok(Component::Host(None)),
"first-of-type" => Ok(Component::FirstOfType),
"last-of-type" => Ok(Component::LastOfType),
"only-of-type" => Ok(Component::OnlyOfType),
_ => Err(())
})
.or_else(|()| {
P::parse_non_ts_pseudo_class(parser, location, name).map(Component::NonTSPseudoClass)
})
if !state.allows_non_functional_pseudo_classes() {
return Err(location.new_custom_error(SelectorParseErrorKind::InvalidState));
}
if state.allows_tree_structural_pseudo_classes() {
match_ignore_ascii_case! { &name,
"first-child" => return Ok(Component::FirstChild),
"last-child" => return Ok(Component::LastChild),
"only-child" => return Ok(Component::OnlyChild),
"root" => return Ok(Component::Root),
"empty" => return Ok(Component::Empty),
"scope" => return Ok(Component::Scope),
"host" if P::parse_host(parser) => return Ok(Component::Host(None)),
"first-of-type" => return Ok(Component::FirstOfType),
"last-of-type" => return Ok(Component::LastOfType),
"only-of-type" => return Ok(Component::OnlyOfType),
_ => {},
}
}
let pseudo_class = P::parse_non_ts_pseudo_class(parser, location, name)?;
if state.intersects(SelectorParsingState::AFTER_PSEUDO_ELEMENT) &&
!pseudo_class.is_user_action_state()
{
return Err(location.new_custom_error(SelectorParseErrorKind::InvalidState));
}
Ok(Component::NonTSPseudoClass(pseudo_class))
}
// NB: pub module in order to access the DummyParser
@ -2218,11 +2275,8 @@ pub mod tests {
impl parser::PseudoElement for PseudoElement {
type Impl = DummySelectorImpl;
fn supports_pseudo_class(&self, pc: &PseudoClass) -> bool {
match *pc {
PseudoClass::Hover => true,
PseudoClass::Active | PseudoClass::Lang(..) => false,
}
fn accepts_state_pseudo_classes(&self) -> bool {
true
}
fn valid_after_slotted(&self) -> bool {
@ -2237,6 +2291,11 @@ pub mod tests {
fn is_active_or_hover(&self) -> bool {
matches!(*self, PseudoClass::Active | PseudoClass::Hover)
}
#[inline]
fn is_user_action_state(&self) -> bool {
self.is_active_or_hover()
}
}
impl ToCss for PseudoClass {
@ -2302,6 +2361,7 @@ pub mod tests {
type AttrValue = DummyAtom;
type Identifier = DummyAtom;
type ClassName = DummyAtom;
type PartName = DummyAtom;
type LocalName = DummyAtom;
type NamespaceUrl = DummyAtom;
type NamespacePrefix = DummyAtom;
@ -2340,6 +2400,10 @@ pub mod tests {
true
}
fn parse_part(&self) -> bool {
true
}
fn parse_non_ts_pseudo_class(
&self,
location: SourceLocation,
@ -2789,11 +2853,11 @@ pub mod tests {
specificity(0, 2, 1) | HAS_PSEUDO_BIT,
)]))
);
assert!(parse("::before:hover:active").is_err());
assert!(parse("::before:hover:lang(foo)").is_err());
assert!(parse("::before:hover .foo").is_err());
assert!(parse("::before .foo").is_err());
assert!(parse("::before ~ bar").is_err());
assert!(parse("::before:active").is_err());
assert!(parse("::before:active").is_ok());
// https://github.com/servo/servo/issues/15335
assert!(parse(":: before").is_err());
@ -2914,6 +2978,14 @@ pub mod tests {
assert!(parse("::slotted(div).foo").is_err());
assert!(parse("::slotted(div + bar)").is_err());
assert!(parse("::slotted(div) + foo").is_err());
assert!(parse("::part()").is_err());
assert!(parse("::part(42)").is_err());
// Though note https://github.com/w3c/csswg-drafts/issues/3502
assert!(parse("::part(foo bar)").is_err());
assert!(parse("::part(foo):hover").is_ok());
assert!(parse("::part(foo) + bar").is_err());
assert!(parse("div ::slotted(div)").is_ok());
assert!(parse("div + slot::slotted(div)").is_ok());
assert!(parse("div + slot::slotted(div.foo)").is_ok());

2
components/selectors/tree.rs
View file

@ -110,6 +110,8 @@ pub trait Element: Sized + Clone + Debug {
case_sensitivity: CaseSensitivity,
) -> bool;
fn is_part(&self, name: &<Self::Impl as SelectorImpl>::PartName) -> bool;
/// Returns whether this element matches `:empty`.
///
/// That is, whether it does not contain any child element or any non-zero-length text node.

12
components/style/author_styles.rs
View file

@ -3,7 +3,7 @@
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
//! A set of author stylesheets and their computed representation, such as the
//! ones used for ShadowRoot and XBL.
//! ones used for ShadowRoot.
use crate::context::QuirksMode;
use crate::dom::TElement;
@ -17,7 +17,7 @@ use crate::stylesheets::StylesheetInDocument;
use crate::stylist::CascadeData;
/// A set of author stylesheets and their computed representation, such as the
/// ones used for ShadowRoot and XBL.
/// ones used for ShadowRoot.
#[derive(MallocSizeOf)]
pub struct AuthorStyles<S>
where
@ -28,9 +28,6 @@ where
pub stylesheets: AuthorStylesheetSet<S>,
/// The actual cascade data computed from the stylesheets.
pub data: CascadeData,
/// The quirks mode of the last stylesheet flush, used because XBL sucks and
/// we should really fix it, see bug 1406875.
pub quirks_mode: QuirksMode,
}
impl<S> AuthorStyles<S>
@ -43,7 +40,6 @@ where
Self {
stylesheets: AuthorStylesheetSet::new(),
data: CascadeData::new(),
quirks_mode: QuirksMode::NoQuirks,
}
}
@ -65,10 +61,6 @@ where
.stylesheets
.flush::<E>(/* host = */ None, /* snapshot_map = */ None);
if flusher.sheets.dirty() {
self.quirks_mode = quirks_mode;
}
// Ignore OOM.
let _ = self
.data

45
components/style/dom.rs
View file

@ -761,7 +761,7 @@ pub trait TElement:
/// Returns the anonymous content for the current element's XBL binding,
/// given if any.
///
/// This is used in Gecko for XBL and shadow DOM.
/// This is used in Gecko for XBL.
fn xbl_binding_anonymous_content(&self) -> Option<Self::ConcreteNode> {
None
}
@ -772,11 +772,6 @@ pub trait TElement:
/// The shadow root which roots the subtree this element is contained in.
fn containing_shadow(&self) -> Option<<Self::ConcreteNode as TNode>::ConcreteShadowRoot>;
/// XBL hack for style sharing. :(
fn has_same_xbl_proto_binding_as(&self, _other: Self) -> bool {
true
}
/// Return the element which we can use to look up rules in the selector
/// maps.
///
@ -792,56 +787,34 @@ pub trait TElement:
}
}
/// Implements Gecko's `nsBindingManager::WalkRules`.
///
/// Returns whether to cut off the binding inheritance, that is, whether
/// document rules should _not_ apply.
fn each_xbl_cascade_data<'a, F>(&self, _: F) -> bool
where
Self: 'a,
F: FnMut(&'a CascadeData, QuirksMode),
{
false
}
/// Executes the callback for each applicable style rule data which isn't
/// the main document's data (which stores UA / author rules).
///
/// The element passed to the callback is the containing shadow host for the
/// data if it comes from Shadow DOM, None if it comes from XBL.
/// data if it comes from Shadow DOM.
///
/// Returns whether normal document author rules should apply.
fn each_applicable_non_document_style_rule_data<'a, F>(&self, mut f: F) -> bool
where
Self: 'a,
F: FnMut(&'a CascadeData, QuirksMode, Option<Self>),
F: FnMut(&'a CascadeData, Self),
{
use rule_collector::containing_shadow_ignoring_svg_use;
let mut doc_rules_apply = !self.each_xbl_cascade_data(|data, quirks_mode| {
f(data, quirks_mode, None);
});
let mut doc_rules_apply = self.matches_user_and_author_rules();
// Use the same rules to look for the containing host as we do for rule
// collection.
if let Some(shadow) = containing_shadow_ignoring_svg_use(*self) {
doc_rules_apply = false;
if let Some(data) = shadow.style_data() {
f(
data,
self.as_node().owner_doc().quirks_mode(),
Some(shadow.host()),
);
f(data, shadow.host());
}
}
if let Some(shadow) = self.shadow_root() {
if let Some(data) = shadow.style_data() {
f(
data,
self.as_node().owner_doc().quirks_mode(),
Some(shadow.host()),
);
f(data, shadow.host());
}
}
@ -850,11 +823,7 @@ pub trait TElement:
// Slots can only have assigned nodes when in a shadow tree.
let shadow = slot.containing_shadow().unwrap();
if let Some(data) = shadow.style_data() {
f(
data,
self.as_node().owner_doc().quirks_mode(),
Some(shadow.host()),
);
f(data, shadow.host());
}
current = slot.assigned_slot();
}

80
components/style/gecko/conversions.rs
View file

@ -13,18 +13,17 @@
use crate::gecko::values::GeckoStyleCoordConvertible;
use crate::gecko_bindings::bindings;
use crate::gecko_bindings::structs::{self, nsStyleCoord_CalcValue, Matrix4x4Components};
use crate::gecko_bindings::structs::{nsStyleImage, nsresult, SheetType};
use crate::gecko_bindings::structs::{nsStyleImage, nsresult};
use crate::gecko_bindings::sugar::ns_style_coord::{CoordData, CoordDataMut, CoordDataValue};
use crate::stylesheets::{Origin, RulesMutateError};
use crate::stylesheets::RulesMutateError;
use crate::values::computed::image::LineDirection;
use crate::values::computed::transform::Matrix3D;
use crate::values::computed::url::ComputedImageUrl;
use crate::values::computed::{Angle, Gradient, Image};
use crate::values::computed::{Integer, LengthPercentage};
use crate::values::computed::{Length, Percentage, TextAlign};
use crate::values::generics::box_::VerticalAlign;
use crate::values::generics::grid::{TrackListValue, TrackSize};
use crate::values::generics::image::{CompatMode, GradientItem, Image as GenericImage};
use crate::values::generics::image::{CompatMode, Image as GenericImage};
use crate::values::generics::rect::Rect;
use crate::Zero;
use app_units::Au;
@ -154,7 +153,6 @@ impl nsStyleImage {
// FIXME(emilio): This is really complex, we should use cbindgen for this.
fn set_gradient(&mut self, gradient: Gradient) {
use self::structs::nsStyleCoord;
use self::structs::NS_STYLE_GRADIENT_SIZE_CLOSEST_CORNER as CLOSEST_CORNER;
use self::structs::NS_STYLE_GRADIENT_SIZE_CLOSEST_SIDE as CLOSEST_SIDE;
use self::structs::NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER as FARTHEST_CORNER;
@ -329,26 +327,9 @@ impl nsStyleImage {
},
};
for (index, item) in gradient.items.iter().enumerate() {
// NB: stops are guaranteed to be none in the gecko side by
// default.
for (index, item) in gradient.items.into_iter().enumerate() {
let gecko_stop = unsafe { &mut (*gecko_gradient).mStops[index] };
let mut coord = nsStyleCoord::null();
match *item {
GradientItem::ColorStop(ref stop) => {
gecko_stop.mColor = stop.color.into();
gecko_stop.mIsInterpolationHint = false;
coord.set(stop.position);
},
GradientItem::InterpolationHint(hint) => {
gecko_stop.mIsInterpolationHint = true;
coord.set(Some(hint));
},
}
gecko_stop.mLocation.move_from(coord);
*gecko_stop = item;
}
unsafe {
@ -419,7 +400,7 @@ impl nsStyleImage {
use self::structs::NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER as FARTHEST_CORNER;
use self::structs::NS_STYLE_GRADIENT_SIZE_FARTHEST_SIDE as FARTHEST_SIDE;
use crate::values::computed::position::Position;
use crate::values::generics::image::{Circle, ColorStop, Ellipse};
use crate::values::generics::image::{Circle, Ellipse};
use crate::values::generics::image::{EndingShape, GradientKind, ShapeExtent};
let gecko_gradient = bindings::Gecko_GetGradientImageValue(self)
@ -531,24 +512,7 @@ impl nsStyleImage {
},
};
let items = gecko_gradient
.mStops
.iter()
.map(|ref stop| {
if stop.mIsInterpolationHint {
GradientItem::InterpolationHint(
LengthPercentage::from_gecko_style_coord(&stop.mLocation)
.expect("mLocation could not convert to LengthPercentage"),
)
} else {
GradientItem::ColorStop(ColorStop {
color: stop.mColor.into(),
position: LengthPercentage::from_gecko_style_coord(&stop.mLocation),
})
}
})
.collect();
let items = gecko_gradient.mStops.iter().cloned().collect();
let compat_mode = if gecko_gradient.mMozLegacySyntax {
CompatMode::Moz
} else if gecko_gradient.mLegacySyntax {
@ -818,16 +782,6 @@ impl From<RulesMutateError> for nsresult {
}
}
impl From<Origin> for SheetType {
fn from(other: Origin) -> Self {
match other {
Origin::UserAgent => SheetType::Agent,
Origin::Author => SheetType::Doc,
Origin::User => SheetType::User,
}
}
}
impl TrackSize<LengthPercentage> {
/// Return TrackSize from given two nsStyleCoord
pub fn from_gecko_style_coords<T: CoordData>(gecko_min: &T, gecko_max: &T) -> Self {
@ -920,26 +874,6 @@ where
}
}
impl<L> VerticalAlign<L> {
/// Converts an enumerated value coming from Gecko to a `VerticalAlign<L>`.
pub fn from_gecko_keyword(value: u32) -> Self {
match value {
structs::NS_STYLE_VERTICAL_ALIGN_BASELINE => VerticalAlign::Baseline,
structs::NS_STYLE_VERTICAL_ALIGN_SUB => VerticalAlign::Sub,
structs::NS_STYLE_VERTICAL_ALIGN_SUPER => VerticalAlign::Super,
structs::NS_STYLE_VERTICAL_ALIGN_TOP => VerticalAlign::Top,
structs::NS_STYLE_VERTICAL_ALIGN_TEXT_TOP => VerticalAlign::TextTop,
structs::NS_STYLE_VERTICAL_ALIGN_MIDDLE => VerticalAlign::Middle,
structs::NS_STYLE_VERTICAL_ALIGN_BOTTOM => VerticalAlign::Bottom,
structs::NS_STYLE_VERTICAL_ALIGN_TEXT_BOTTOM => VerticalAlign::TextBottom,
structs::NS_STYLE_VERTICAL_ALIGN_MIDDLE_WITH_BASELINE => {
VerticalAlign::MozMiddleWithBaseline
},
_ => panic!("unexpected enumerated value for vertical-align"),
}
}
}
impl TextAlign {
/// Obtain a specified value from a Gecko keyword value
///

5
components/style/gecko/data.rs
View file

@ -145,11 +145,6 @@ impl PerDocumentStyleData {
/// Create a `PerDocumentStyleData`.
pub fn new(document: *const structs::Document) -> Self {
let device = Device::new(document);
// FIXME(emilio, tlin): How is this supposed to work with XBL? This is
// right now not always honored, see bug 1405543...
//
// Should we just force XBL Stylists to be NoQuirks?
let quirks_mode = device.document().mCompatMode;
PerDocumentStyleData(AtomicRefCell::new(PerDocumentStyleDataImpl {

1
components/style/gecko/media_queries.rs
View file

@ -169,7 +169,6 @@ impl Device {
self.document()
.mPresShell
.as_ref()?
._base
.mPresContext
.mRawPtr
.as_ref()

12
components/style/gecko/pseudo_element.rs
View file

@ -11,7 +11,7 @@
use crate::gecko_bindings::structs::{self, PseudoStyleType};
use crate::properties::longhands::display::computed_value::T as Display;
use crate::properties::{ComputedValues, PropertyFlags};
use crate::selector_parser::{NonTSPseudoClass, PseudoElementCascadeType, SelectorImpl};
use crate::selector_parser::{PseudoElementCascadeType, SelectorImpl};
use crate::str::{starts_with_ignore_ascii_case, string_as_ascii_lowercase};
use crate::string_cache::Atom;
use crate::values::serialize_atom_identifier;
@ -30,6 +30,7 @@ impl ::selectors::parser::PseudoElement for PseudoElement {
// ::slotted() should support all tree-abiding pseudo-elements, see
// https://drafts.csswg.org/css-scoping/#slotted-pseudo
// https://drafts.csswg.org/css-pseudo-4/#treelike
#[inline]
fn valid_after_slotted(&self) -> bool {
matches!(
*self,
@ -40,12 +41,9 @@ impl ::selectors::parser::PseudoElement for PseudoElement {
)
}
fn supports_pseudo_class(&self, pseudo_class: &NonTSPseudoClass) -> bool {
if !self.supports_user_action_state() {
return false;
}
return pseudo_class.is_safe_user_action_state();
#[inline]
fn accepts_state_pseudo_classes(&self) -> bool {
self.supports_user_action_state()
}
}

25
components/style/gecko/selector_parser.rs
View file

@ -184,16 +184,6 @@ impl NonTSPseudoClass {
}
}
/// <https://drafts.csswg.org/selectors-4/#useraction-pseudos>
///
/// We intentionally skip the link-related ones.
pub fn is_safe_user_action_state(&self) -> bool {
matches!(
*self,
NonTSPseudoClass::Hover | NonTSPseudoClass::Active | NonTSPseudoClass::Focus
)
}
/// Get the state flag associated with a pseudo-class, if any.
pub fn state_flag(&self) -> ElementState {
macro_rules! flag {
@ -279,6 +269,15 @@ impl ::selectors::parser::NonTSPseudoClass for NonTSPseudoClass {
fn is_active_or_hover(&self) -> bool {
matches!(*self, NonTSPseudoClass::Active | NonTSPseudoClass::Hover)
}
/// We intentionally skip the link-related ones.
#[inline]
fn is_user_action_state(&self) -> bool {
matches!(
*self,
NonTSPseudoClass::Hover | NonTSPseudoClass::Active | NonTSPseudoClass::Focus
)
}
}
/// The dummy struct we use to implement our selector parsing.
@ -290,6 +289,7 @@ impl ::selectors::SelectorImpl for SelectorImpl {
type AttrValue = Atom;
type Identifier = Atom;
type ClassName = Atom;
type PartName = Atom;
type LocalName = Atom;
type NamespacePrefix = Atom;
type NamespaceUrl = Namespace;
@ -352,11 +352,6 @@ impl<'a, 'i> ::selectors::Parser<'i> for SelectorParser<'a> {
self.parse_slotted()
}
fn pseudo_element_allows_single_colon(name: &str) -> bool {
// FIXME: -moz-tree check should probably be ascii-case-insensitive.
::selectors::parser::is_css2_pseudo_element(name) || name.starts_with("-moz-tree-")
}
fn parse_non_ts_pseudo_class(
&self,
location: SourceLocation,

12
components/style/gecko/snapshot.rs
View file

@ -183,13 +183,23 @@ impl ElementSnapshot for GeckoElementSnapshot {
snapshot_helpers::get_id(&*self.mAttrs)
}
#[inline]
fn is_part(&self, name: &Atom) -> bool {
let attr = match snapshot_helpers::find_attr(&*self.mAttrs, &atom!("part")) {
Some(attr) => attr,
None => return false,
};
snapshot_helpers::has_class_or_part(name, CaseSensitivity::CaseSensitive, attr)
}
#[inline]
fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
if !self.has_any(Flags::MaybeClass) {
return false;
}
snapshot_helpers::has_class(name, case_sensitivity, &self.mClass)
snapshot_helpers::has_class_or_part(name, case_sensitivity, &self.mClass)
}
#[inline]

12
components/style/gecko/snapshot_helpers.rs
View file

@ -29,7 +29,7 @@ unsafe fn ptr<T>(attr: &structs::nsAttrValue) -> *const T {
}
#[inline(always)]
unsafe fn get_class_from_attr(attr: &structs::nsAttrValue) -> Class {
unsafe fn get_class_or_part_from_attr(attr: &structs::nsAttrValue) -> Class {
debug_assert!(bindings::Gecko_AssertClassAttrValueIsSane(attr));
let base_type = base_type(attr);
if base_type == structs::nsAttrValue_ValueBaseType_eStringBase {
@ -82,15 +82,15 @@ pub fn get_id(attrs: &[structs::AttrArray_InternalAttr]) -> Option<&WeakAtom> {
Some(unsafe { get_id_from_attr(find_attr(attrs, &atom!("id"))?) })
}
/// Given a class name, a case sensitivity, and an array of attributes, returns
/// whether the class has the attribute that name represents.
/// Given a class or part name, a case sensitivity, and an array of attributes,
/// returns whether the attribute has that name.
#[inline(always)]
pub fn has_class(
pub fn has_class_or_part(
name: &Atom,
case_sensitivity: CaseSensitivity,
attr: &structs::nsAttrValue,
) -> bool {
match unsafe { get_class_from_attr(attr) } {
match unsafe { get_class_or_part_from_attr(attr) } {
Class::None => false,
Class::One(atom) => unsafe { case_sensitivity.eq_atom(name, WeakAtom::new(atom)) },
Class::More(atoms) => match case_sensitivity {
@ -114,7 +114,7 @@ where
F: FnMut(&Atom),
{
unsafe {
match get_class_from_attr(attr) {
match get_class_or_part_from_attr(attr) {
Class::None => {},
Class::One(atom) => Atom::with(atom, callback),
Class::More(atoms) => {

100
components/style/gecko/wrapper.rs
View file

@ -172,15 +172,7 @@ impl<'lr> TShadowRoot for GeckoShadowRoot<'lr> {
Self: 'a,
{
let author_styles = unsafe { self.0.mServoStyles.mPtr.as_ref()? };
let author_styles = AuthorStyles::<GeckoStyleSheet>::from_ffi(author_styles);
debug_assert!(
author_styles.quirks_mode == self.as_node().owner_doc().quirks_mode() ||
author_styles.stylesheets.is_empty() ||
author_styles.stylesheets.dirty()
);
Some(&author_styles.data)
}
@ -536,11 +528,6 @@ impl<'lb> GeckoXBLBinding<'lb> {
self.0.mContent.raw::<nsIContent>()
}
#[inline]
fn inherits_style(&self) -> bool {
unsafe { bindings::Gecko_XBLBinding_InheritsStyle(self.0) }
}
// This duplicates the logic in Gecko's
// nsBindingManager::GetBindingWithContent.
fn binding_with_content(&self) -> Option<Self> {
@ -552,22 +539,6 @@ impl<'lb> GeckoXBLBinding<'lb> {
binding = binding.base_binding()?;
}
}
fn each_xbl_cascade_data<F>(&self, f: &mut F)
where
F: FnMut(&'lb CascadeData, QuirksMode),
{
if let Some(base) = self.base_binding() {
base.each_xbl_cascade_data(f);
}
let data = unsafe { bindings::Gecko_XBLBinding_GetRawServoStyles(self.0).as_ref() };
if let Some(data) = data {
let data: &'lb _ = AuthorStyles::<GeckoStyleSheet>::from_ffi(data);
f(&data.data, data.quirks_mode)
}
}
}
/// A simple wrapper over a non-null Gecko `Element` pointer.
@ -602,6 +573,11 @@ impl<'le> GeckoElement<'le> {
}
}
#[inline(always)]
fn get_part_attr(&self) -> Option<&structs::nsAttrValue> {
snapshot_helpers::find_attr(self.attrs(), &atom!("part"))
}
#[inline(always)]
fn get_class_attr(&self) -> Option<&structs::nsAttrValue> {
if !self.may_have_class() {
@ -894,10 +870,11 @@ impl<'le> GeckoElement<'le> {
if !self.as_node().is_in_shadow_tree() {
return false;
}
match self.containing_shadow_host() {
Some(e) => e.is_svg_element() && e.local_name() == &*local_name!("use"),
None => false,
if !self.parent_node_is_shadow_root() {
return false;
}
let host = self.containing_shadow_host().unwrap();
host.is_svg_element() && host.local_name() == &*local_name!("use")
}
fn css_transitions_info(&self) -> FxHashMap<LonghandId, Arc<AnimationValue>> {
@ -1250,14 +1227,6 @@ impl<'le> TElement for GeckoElement<'le> {
}
}
fn has_same_xbl_proto_binding_as(&self, other: Self) -> bool {
match (self.xbl_binding(), other.xbl_binding()) {
(None, None) => true,
(Some(a), Some(b)) => a.0.mPrototypeBinding == b.0.mPrototypeBinding,
_ => false,
}
}
fn each_anonymous_content_child<F>(&self, mut f: F)
where
F: FnMut(Self),
@ -1436,7 +1405,7 @@ impl<'le> TElement for GeckoElement<'le> {
#[inline]
fn matches_user_and_author_rules(&self) -> bool {
!self.is_in_native_anonymous_subtree()
!self.rule_hash_target().is_in_native_anonymous_subtree()
}
#[inline]
@ -1599,43 +1568,6 @@ impl<'le> TElement for GeckoElement<'le> {
self.may_have_animations() && unsafe { Gecko_ElementHasCSSTransitions(self.0) }
}
fn each_xbl_cascade_data<'a, F>(&self, mut f: F) -> bool
where
'le: 'a,
F: FnMut(&'a CascadeData, QuirksMode),
{
// Walk the binding scope chain, starting with the binding attached to
// our content, up till we run out of scopes or we get cut off.
//
// If we are a NAC pseudo-element, we want to get rules from our
// rule_hash_target, that is, our originating element.
let mut current = Some(self.rule_hash_target());
while let Some(element) = current {
if let Some(binding) = element.xbl_binding() {
binding.each_xbl_cascade_data(&mut f);
// If we're not looking at our original element, allow the
// binding to cut off style inheritance.
if element != *self && !binding.inherits_style() {
// Go no further; we're not inheriting style from
// anything above here.
break;
}
}
if element.is_root_of_native_anonymous_subtree() {
// Deliberately cut off style inheritance here.
break;
}
current = element.xbl_binding_parent();
}
// If current has something, this means we cut off inheritance at some
// point in the loop.
current.is_some()
}
fn xbl_binding_anonymous_content(&self) -> Option<GeckoNode<'le>> {
self.xbl_binding_with_content()
.map(|b| unsafe { GeckoNode::from_content(&*b.anon_content()) })
@ -2332,6 +2264,16 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
case_sensitivity.eq_atom(element_id, id)
}
#[inline]
fn is_part(&self, name: &Atom) -> bool {
let attr = match self.get_part_attr() {
Some(c) => c,
None => return false,
};
snapshot_helpers::has_class_or_part(name, CaseSensitivity::CaseSensitive, attr)
}
#[inline(always)]
fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
let attr = match self.get_class_attr() {
@ -2339,7 +2281,7 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
None => return false,
};
snapshot_helpers::has_class(name, case_sensitivity, attr)
snapshot_helpers::has_class_or_part(name, case_sensitivity, attr)
}
#[inline]

11
components/style/invalidation/element/element_wrapper.rs
View file

@ -58,6 +58,10 @@ pub trait ElementSnapshot: Sized {
/// if `has_attrs()` returns true.
fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool;
/// Whether this snapshot represents the part named `name`. Should only be
/// called if `has_attrs()` returns true.
fn is_part(&self, name: &Atom) -> bool;
/// A callback that should be called for each class of the snapshot. Should
/// only be called if `has_attrs()` returns true.
fn each_class<F>(&self, _: F)
@ -340,6 +344,13 @@ where
}
}
fn is_part(&self, name: &Atom) -> bool {
match self.snapshot() {
Some(snapshot) if snapshot.has_attrs() => snapshot.is_part(name),
_ => self.element.is_part(name),
}
}
fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
match self.snapshot() {
Some(snapshot) if snapshot.has_attrs() => snapshot.has_class(name, case_sensitivity),

1
components/style/invalidation/element/invalidation_map.rs
View file

@ -98,6 +98,7 @@ impl Dependency {
// an eager pseudo, and return only Descendants here if not.
Some(Combinator::PseudoElement) => DependencyInvalidationKind::ElementAndDescendants,
Some(Combinator::SlotAssignment) => DependencyInvalidationKind::SlottedElements,
Some(Combinator::Part) => unimplemented!("Need to add invalidation for shadow parts"),
}
}
}

8
components/style/invalidation/element/invalidator.rs
View file

@ -158,7 +158,10 @@ impl<'a> Invalidation<'a> {
// We should be able to do better here!
match self.selector.combinator_at_parse_order(self.offset - 1) {
Combinator::Descendant | Combinator::LaterSibling | Combinator::PseudoElement => true,
Combinator::SlotAssignment | Combinator::NextSibling | Combinator::Child => false,
Combinator::Part |
Combinator::SlotAssignment |
Combinator::NextSibling |
Combinator::Child => false,
}
}
@ -171,6 +174,9 @@ impl<'a> Invalidation<'a> {
Combinator::Child | Combinator::Descendant | Combinator::PseudoElement => {
InvalidationKind::Descendant(DescendantInvalidationKind::Dom)
},
Combinator::Part => {
unimplemented!("Need to add invalidation for shadow parts");
},
Combinator::SlotAssignment => {
InvalidationKind::Descendant(DescendantInvalidationKind::Slotted)
},

12
components/style/invalidation/element/state_and_attributes.rs
View file

@ -224,8 +224,8 @@ where
let mut shadow_rule_datas = SmallVec::<[_; 3]>::new();
let matches_document_author_rules =
element.each_applicable_non_document_style_rule_data(|data, quirks_mode, host| {
shadow_rule_datas.push((data, quirks_mode, host.map(|h| h.opaque())))
element.each_applicable_non_document_style_rule_data(|data, host| {
shadow_rule_datas.push((data, host.opaque()))
});
let invalidated_self = {
@ -258,12 +258,8 @@ where
}
}
for &(ref data, quirks_mode, ref host) in &shadow_rule_datas {
// FIXME(emilio): Replace with assert / remove when we figure
// out what to do with the quirks mode mismatches
// (that is, when bug 1406875 is properly fixed).
collector.matching_context.set_quirks_mode(quirks_mode);
collector.matching_context.current_host = host.clone();
for &(ref data, ref host) in &shadow_rule_datas {
collector.matching_context.current_host = Some(host.clone());
collector.collect_dependencies_in_invalidation_map(data.invalidation_map());
}

3
components/style/properties/data.py
View file

@ -347,6 +347,7 @@ class Longhand(object):
"TextAlign",
"TextDecorationLine",
"TextEmphasisPosition",
"TextTransform",
"TouchAction",
"TransformStyle",
"UserSelect",
@ -399,8 +400,6 @@ class Shorthand(object):
and allowed_in_keyframe_block != "False"
def get_animatable(self):
if self.ident == "all":
return False
for sub in self.sub_properties:
if sub.animatable:
return True

84
components/style/properties/gecko.mako.rs
View file

@ -38,7 +38,7 @@ use crate::gecko_bindings::bindings::{Gecko_ResetFilters, Gecko_CopyFiltersFrom}
use crate::gecko_bindings::structs;
use crate::gecko_bindings::structs::nsCSSPropertyID;
use crate::gecko_bindings::structs::mozilla::PseudoStyleType;
use crate::gecko_bindings::sugar::ns_style_coord::{CoordDataValue, CoordData, CoordDataMut};
use crate::gecko_bindings::sugar::ns_style_coord::{CoordDataValue, CoordDataMut};
use crate::gecko_bindings::sugar::refptr::RefPtr;
use crate::gecko::values::GeckoStyleCoordConvertible;
use crate::gecko::values::round_border_to_device_pixels;
@ -1104,9 +1104,6 @@ impl ${style_struct.gecko_struct_name} {
}
result
}
pub fn get_gecko(&self) -> &${style_struct.gecko_ffi_name} {
&self.gecko
}
}
impl Drop for ${style_struct.gecko_struct_name} {
fn drop(&mut self) {
@ -2508,7 +2505,7 @@ fn static_assert() {
}
</%def>
<% skip_box_longhands= """display vertical-align
<% skip_box_longhands= """display
animation-name animation-delay animation-duration
animation-direction animation-fill-mode animation-play-state
animation-iteration-count animation-timing-function
@ -2564,47 +2561,6 @@ fn static_assert() {
) %>
${impl_keyword('clear', 'mBreakType', clear_keyword)}
pub fn set_vertical_align(&mut self, v: longhands::vertical_align::computed_value::T) {
use crate::values::generics::box_::VerticalAlign;
let value = match v {
VerticalAlign::Baseline => structs::NS_STYLE_VERTICAL_ALIGN_BASELINE,
VerticalAlign::Sub => structs::NS_STYLE_VERTICAL_ALIGN_SUB,
VerticalAlign::Super => structs::NS_STYLE_VERTICAL_ALIGN_SUPER,
VerticalAlign::Top => structs::NS_STYLE_VERTICAL_ALIGN_TOP,
VerticalAlign::TextTop => structs::NS_STYLE_VERTICAL_ALIGN_TEXT_TOP,
VerticalAlign::Middle => structs::NS_STYLE_VERTICAL_ALIGN_MIDDLE,
VerticalAlign::Bottom => structs::NS_STYLE_VERTICAL_ALIGN_BOTTOM,
VerticalAlign::TextBottom => structs::NS_STYLE_VERTICAL_ALIGN_TEXT_BOTTOM,
VerticalAlign::MozMiddleWithBaseline => {
structs::NS_STYLE_VERTICAL_ALIGN_MIDDLE_WITH_BASELINE
},
VerticalAlign::Length(length) => {
self.gecko.mVerticalAlign.set(length);
return;
},
};
self.gecko.mVerticalAlign.set_value(CoordDataValue::Enumerated(value));
}
pub fn clone_vertical_align(&self) -> longhands::vertical_align::computed_value::T {
use crate::values::computed::LengthPercentage;
use crate::values::generics::box_::VerticalAlign;
let gecko = &self.gecko.mVerticalAlign;
match gecko.as_value() {
CoordDataValue::Enumerated(value) => VerticalAlign::from_gecko_keyword(value),
_ => {
VerticalAlign::Length(
LengthPercentage::from_gecko_style_coord(gecko).expect(
"expected <length-percentage> for vertical-align",
),
)
},
}
}
<%call expr="impl_coord_copy('vertical_align', 'mVerticalAlign')"></%call>
${impl_style_coord("scroll_snap_points_x", "mScrollSnapPointsX")}
${impl_style_coord("scroll_snap_points_y", "mScrollSnapPointsY")}
@ -4455,7 +4411,7 @@ clip-path
fn set_counter_function(
data: &mut nsStyleContentData,
content_type: StyleContentType,
name: &CustomIdent,
name: CustomIdent,
sep: &str,
style: CounterStyleOrNone,
) {
@ -4464,7 +4420,9 @@ clip-path
let counter_func = unsafe {
bindings::Gecko_SetCounterFunction(data, content_type).as_mut().unwrap()
};
counter_func.mIdent.assign(name.0.as_slice());
counter_func.mIdent.set_move(unsafe {
RefPtr::from_addrefed(name.0.into_addrefed())
});
if content_type == StyleContentType::Counters {
counter_func.mSeparator.assign_str(sep);
}
@ -4493,14 +4451,14 @@ clip-path
Gecko_ClearAndResizeStyleContents(&mut self.gecko,
items.len() as u32);
}
for (i, item) in items.into_iter().enumerate() {
for (i, item) in items.into_vec().into_iter().enumerate() {
// NB: Gecko compares the mString value if type is not image
// or URI independently of whatever gets there. In the quote
// cases, they set it to null, so do the same here.
unsafe {
*self.gecko.mContents[i].mContent.mString.as_mut() = ptr::null_mut();
}
match *item {
match item {
ContentItem::String(ref value) => {
self.gecko.mContents[i].mType = StyleContentType::String;
unsafe {
@ -4536,22 +4494,22 @@ clip-path
=> self.gecko.mContents[i].mType = StyleContentType::NoOpenQuote,
ContentItem::NoCloseQuote
=> self.gecko.mContents[i].mType = StyleContentType::NoCloseQuote,
ContentItem::Counter(ref name, ref style) => {
ContentItem::Counter(name, style) => {
set_counter_function(
&mut self.gecko.mContents[i],
StyleContentType::Counter,
&name,
name,
"",
style.clone(),
style,
);
}
ContentItem::Counters(ref name, ref sep, ref style) => {
ContentItem::Counters(name, sep, style) => {
set_counter_function(
&mut self.gecko.mContents[i],
StyleContentType::Counters,
&name,
name,
&sep,
style.clone(),
style,
);
}
ContentItem::Url(ref url) => {
@ -4627,7 +4585,9 @@ clip-path
StyleContentType::Counter | StyleContentType::Counters => {
let gecko_function =
unsafe { &**gecko_content.mContent.mCounters.as_ref() };
let ident = CustomIdent(Atom::from(&*gecko_function.mIdent));
let ident = CustomIdent(unsafe {
Atom::from_raw(gecko_function.mIdent.mRawPtr)
});
let style =
CounterStyleOrNone::from_gecko_value(&gecko_function.mCounterStyle);
let style = match style {
@ -4664,8 +4624,10 @@ clip-path
) {
unsafe {
bindings::Gecko_ClearAndResizeCounter${counter_property}s(&mut self.gecko, v.len() as u32);
for (i, ref pair) in v.iter().enumerate() {
self.gecko.m${counter_property}s[i].mCounter.assign(pair.name.0.as_slice());
for (i, pair) in v.0.into_vec().into_iter().enumerate() {
self.gecko.m${counter_property}s[i].mCounter.set_move(
RefPtr::from_addrefed(pair.name.0.into_addrefed())
);
self.gecko.m${counter_property}s[i].mValue = pair.value;
}
}
@ -4690,7 +4652,9 @@ clip-path
longhands::counter_${counter_property.lower()}::computed_value::T::new(
self.gecko.m${counter_property}s.iter().map(|ref gecko_counter| {
CounterPair {
name: CustomIdent(Atom::from(gecko_counter.mCounter.to_string())),
name: CustomIdent(unsafe {
Atom::from_raw(gecko_counter.mCounter.mRawPtr)
}),
value: gecko_counter.mValue,
}
}).collect()

2
components/style/properties/longhands/box.mako.rs
View file

@ -337,11 +337,11 @@ ${helpers.predefined_type(
"Position",
"computed::Position::zero()",
vector=True,
allow_empty=True,
products="gecko",
gecko_pref="layout.css.scroll-snap.enabled",
spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-snap-destination)",
animation_value_type="discrete",
allow_empty="NotInitial",
)}
<% transform_extra_prefixes = "moz:layout.css.prefixes.transforms webkit" %>

2
components/style/properties/longhands/inherited_table.mako.rs
View file

@ -9,7 +9,7 @@
${helpers.single_keyword(
"border-collapse",
"separate collapse",
gecko_constant_prefix="NS_STYLE_BORDER",
gecko_enum_prefix="StyleBorderCollapse",
animation_value_type="discrete",
spec="https://drafts.csswg.org/css-tables/#propdef-border-collapse",
servo_restyle_damage = "reflow",

7
components/style/properties/longhands/inherited_text.mako.rs
View file

@ -19,11 +19,10 @@ ${helpers.predefined_type(
// CSS Text Module Level 3
// TODO(pcwalton): `full-width`
${helpers.single_keyword(
${helpers.predefined_type(
"text-transform",
"none capitalize uppercase lowercase",
extra_gecko_values="full-width full-size-kana",
"TextTransform",
"computed::TextTransform::none()",
animation_value_type="discrete",
flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
spec="https://drafts.csswg.org/css-text/#propdef-text-transform",

142
components/style/properties/properties.mako.rs
View file

@ -27,7 +27,7 @@ use crate::context::QuirksMode;
#[cfg(feature = "servo")] use crate::logical_geometry::LogicalMargin;
#[cfg(feature = "servo")] use crate::computed_values;
use crate::logical_geometry::WritingMode;
#[cfg(feature = "gecko")] use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
use malloc_size_of::{MallocSizeOf, MallocSizeOfOps};
use crate::media_queries::Device;
use crate::parser::ParserContext;
use crate::properties::longhands::system_font::SystemFont;
@ -376,7 +376,6 @@ impl PartialEq for PropertyDeclaration {
}
}
#[cfg(feature = "gecko")]
impl MallocSizeOf for PropertyDeclaration {
#[inline]
fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize {
@ -1086,6 +1085,8 @@ impl LonghandId {
}
}
// TODO(emilio): Should we use a function table like CASCADE_PROPERTY does
// to avoid blowing up code-size here?
fn parse_value<'i, 't>(
&self,
context: &ParserContext,
@ -1533,64 +1534,7 @@ impl UnparsedValue {
quirks_mode: QuirksMode,
environment: &::custom_properties::CssEnvironment,
) -> PropertyDeclaration {
crate::custom_properties::substitute(
&self.css,
self.first_token_type,
custom_properties,
environment,
).ok().and_then(|css| {
// As of this writing, only the base URL is used for property
// values.
//
// NOTE(emilio): we intentionally pase `None` as the rule type here.
// If something starts depending on it, it's probably a bug, since
// it'd change how values are parsed depending on whether we're in a
// @keyframes rule or not, for example... So think twice about
// whether you want to do this!
//
// FIXME(emilio): ParsingMode is slightly fishy...
let context = ParserContext::new(
Origin::Author,
&self.url_data,
None,
ParsingMode::DEFAULT,
quirks_mode,
None,
None,
);
let mut input = ParserInput::new(&css);
Parser::new(&mut input).parse_entirely(|input| {
match self.from_shorthand {
None => longhand_id.parse_value(&context, input),
Some(ShorthandId::All) => {
// No need to parse the 'all' shorthand as anything other than a CSS-wide
// keyword, after variable substitution.
Err(input.new_custom_error(SelectorParseErrorKind::UnexpectedIdent("all".into())))
}
% for shorthand in data.shorthands_except_all():
Some(ShorthandId::${shorthand.camel_case}) => {
shorthands::${shorthand.ident}::parse_value(&context, input)
.map(|longhands| {
match longhand_id {
% for property in shorthand.sub_properties:
LonghandId::${property.camel_case} => {
PropertyDeclaration::${property.camel_case}(
longhands.${property.ident}
)
}
% endfor
_ => unreachable!()
}
})
}
% endfor
}
})
.ok()
})
.unwrap_or_else(|| {
// Invalid at computed-value time.
let invalid_at_computed_value_time = || {
let keyword = if longhand_id.inherited() {
CSSWideKeyword::Inherit
} else {
@ -1600,7 +1544,80 @@ impl UnparsedValue {
id: longhand_id,
keyword,
})
})
};
let css = match crate::custom_properties::substitute(
&self.css,
self.first_token_type,
custom_properties,
environment,
) {
Ok(css) => css,
Err(..) => return invalid_at_computed_value_time(),
};
// As of this writing, only the base URL is used for property
// values.
//
// NOTE(emilio): we intentionally pase `None` as the rule type here.
// If something starts depending on it, it's probably a bug, since
// it'd change how values are parsed depending on whether we're in a
// @keyframes rule or not, for example... So think twice about
// whether you want to do this!
//
// FIXME(emilio): ParsingMode is slightly fishy...
let context = ParserContext::new(
Origin::Author,
&self.url_data,
None,
ParsingMode::DEFAULT,
quirks_mode,
None,
None,
);
let mut input = ParserInput::new(&css);
let mut input = Parser::new(&mut input);
input.skip_whitespace(); // Unnecessary for correctness, but may help try() rewind less.
if let Ok(keyword) = input.try(CSSWideKeyword::parse) {
return PropertyDeclaration::CSSWideKeyword(WideKeywordDeclaration {
id: longhand_id,
keyword,
});
}
let declaration = input.parse_entirely(|input| {
match self.from_shorthand {
None => longhand_id.parse_value(&context, input),
Some(ShorthandId::All) => {
// No need to parse the 'all' shorthand as anything other
// than a CSS-wide keyword, after variable substitution.
Err(input.new_custom_error(SelectorParseErrorKind::UnexpectedIdent("all".into())))
}
% for shorthand in data.shorthands_except_all():
Some(ShorthandId::${shorthand.camel_case}) => {
shorthands::${shorthand.ident}::parse_value(&context, input)
.map(|longhands| {
match longhand_id {
% for property in shorthand.sub_properties:
LonghandId::${property.camel_case} => {
PropertyDeclaration::${property.camel_case}(
longhands.${property.ident}
)
}
% endfor
_ => unreachable!()
}
})
}
% endfor
}
});
match declaration {
Ok(decl) => decl,
Err(..) => invalid_at_computed_value_time(),
}
}
}
@ -3745,8 +3762,7 @@ pub fn adjust_border_width(style: &mut StyleBuilder) {
}
/// An identifier for a given alias property.
#[derive(Clone, Copy, Eq, PartialEq)]
#[cfg_attr(feature = "servo", derive(MallocSizeOf))]
#[derive(Clone, Copy, Eq, PartialEq, MallocSizeOf)]
#[repr(u16)]
pub enum AliasId {
% for i, property in enumerate(data.all_aliases()):

9
components/style/properties/shorthands/position.mako.rs
View file

@ -254,7 +254,7 @@
use crate::parser::Parse;
use servo_arc::Arc;
use crate::values::{Either, None_};
use crate::values::generics::grid::{LineNameList, TrackSize, TrackList, TrackListType};
use crate::values::generics::grid::{TrackSize, TrackList, TrackListType};
use crate::values::generics::grid::{TrackListValue, concat_serialize_idents};
use crate::values::specified::{GridTemplateComponent, GenericGridTemplateComponent};
use crate::values::specified::grid::parse_line_names;
@ -265,12 +265,11 @@
context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<(GridTemplateComponent, GridTemplateComponent, Either<TemplateAreasArc, None_>), ParseError<'i>> {
// Other shorthand sub properties also parse `none` and `subgrid` keywords and this
// shorthand should know after these keywords there is nothing to parse. Otherwise it
// gets confused and rejects the sub properties that contains `none` or `subgrid`.
// Other shorthand sub properties also parse the `none` keyword and this shorthand
// should know after this keyword there is nothing to parse. Otherwise it gets
// confused and rejects the sub properties that contains `none`.
<% keywords = {
"none": "GenericGridTemplateComponent::None",
"subgrid": "GenericGridTemplateComponent::Subgrid(LineNameList::default())"
}
%>
% for keyword, rust_type in keywords.items():

41
components/style/rule_collector.rs
View file

@ -98,7 +98,7 @@ where
flags_setter: &'a mut F,
) -> Self {
let rule_hash_target = element.rule_hash_target();
let matches_user_and_author_rules = rule_hash_target.matches_user_and_author_rules();
let matches_user_and_author_rules = element.matches_user_and_author_rules();
// Gecko definitely has pseudo-elements with style attributes, like
// ::-moz-color-swatch.
@ -198,7 +198,7 @@ where
let rules = &mut self.rules;
let flags_setter = &mut self.flags_setter;
let shadow_cascade_order = self.shadow_cascade_order;
self.context.with_shadow_host(Some(shadow_host), |context| {
self.context.with_shadow_host(shadow_host, |context| {
map.get_all_matching_rules(
element,
rule_hash_target,
@ -303,42 +303,6 @@ where
self.collect_stylist_rules(Origin::Author);
}
fn collect_xbl_rules(&mut self) {
let element = self.element;
let cut_xbl_binding_inheritance =
element.each_xbl_cascade_data(|cascade_data, quirks_mode| {
let map = match cascade_data.normal_rules(self.pseudo_element) {
Some(m) => m,
None => return,
};
// NOTE(emilio): This is needed because the XBL stylist may
// think it has a different quirks mode than the document.
let mut matching_context = MatchingContext::new(
self.context.matching_mode(),
self.context.bloom_filter,
self.context.nth_index_cache.as_mut().map(|s| &mut **s),
quirks_mode,
);
matching_context.pseudo_element_matching_fn =
self.context.pseudo_element_matching_fn;
// SameTreeAuthorNormal instead of InnerShadowNormal to
// preserve behavior, though that's kinda fishy...
map.get_all_matching_rules(
self.element,
self.rule_hash_target,
self.rules,
&mut matching_context,
self.flags_setter,
CascadeLevel::SameTreeAuthorNormal,
self.shadow_cascade_order,
);
});
self.matches_document_author_rules &= !cut_xbl_binding_inheritance;
}
fn collect_style_attribute_and_animation_rules(&mut self) {
if let Some(sa) = self.style_attribute {
self.rules
@ -396,7 +360,6 @@ where
self.collect_host_rules();
self.collect_slotted_rules();
self.collect_normal_rules_from_containing_shadow_tree();
self.collect_xbl_rules();
self.collect_document_author_rules();
self.collect_style_attribute_and_animation_rules();
}

17
components/style/servo/selector_parser.rs
View file

@ -66,10 +66,6 @@ pub const PSEUDO_COUNT: usize = PseudoElement::ServoInlineAbsolute as usize + 1;
impl ::selectors::parser::PseudoElement for PseudoElement {
type Impl = SelectorImpl;
fn supports_pseudo_class(&self, _: &NonTSPseudoClass) -> bool {
false
}
}
impl ToCss for PseudoElement {
@ -293,6 +289,14 @@ impl ::selectors::parser::NonTSPseudoClass for NonTSPseudoClass {
fn is_active_or_hover(&self) -> bool {
matches!(*self, NonTSPseudoClass::Active | NonTSPseudoClass::Hover)
}
#[inline]
fn is_user_action_state(&self) -> bool {
matches!(
*self,
NonTSPseudoClass::Active | NonTSPseudoClass::Hover | NonTSPseudoClass::Focus
)
}
}
impl ToCss for NonTSPseudoClass {
@ -393,6 +397,7 @@ impl ::selectors::SelectorImpl for SelectorImpl {
type AttrValue = String;
type Identifier = Atom;
type ClassName = Atom;
type PartName = Atom;
type LocalName = LocalName;
type NamespacePrefix = Prefix;
type NamespaceUrl = Namespace;
@ -679,6 +684,10 @@ impl ElementSnapshot for ServoElementSnapshot {
.map(|v| v.as_atom())
}
fn is_part(&self, _name: &Atom) -> bool {
false
}
fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool {
self.get_attr(&ns!(), &local_name!("class"))
.map_or(false, |v| {

21
components/style/sharing/mod.rs
View file

@ -727,27 +727,6 @@ impl<E: TElement> StyleSharingCache<E> {
return None;
}
// Note that in theory we shouldn't need this XBL check. However, XBL is
// absolutely broken in all sorts of ways.
//
// A style change that changes which XBL binding applies to an element
// arrives there, with the element still having the old prototype
// binding attached. And thus we try to match revalidation selectors
// with the old XBL binding, because we can't look at the new ones of
// course. And that causes us to revalidate with the wrong selectors and
// hit assertions.
//
// Other than this, we don't need anything else like the containing XBL
// binding parent or what not, since two elements with different XBL
// bindings will necessarily end up with different style.
if !target
.element
.has_same_xbl_proto_binding_as(candidate.element)
{
trace!("Miss: Different proto bindings");
return None;
}
// If the elements are not assigned to the same slot they could match
// different ::slotted() rules in the slot scope.
//

9
components/style/stylesheet_set.rs
View file

@ -468,7 +468,14 @@ where
.fold(0, |s, (item, _)| s + item.len())
}
/// Returns the count of stylesheets for a given origin.
#[inline]
pub fn sheet_count(&self, origin: Origin) -> usize {
self.collections.borrow_for_origin(&origin).len()
}
/// Returns the `index`th stylesheet in the set for the given origin.
#[inline]
pub fn get(&self, origin: Origin, index: usize) -> Option<&S> {
self.collections.borrow_for_origin(&origin).get(index)
}
@ -539,7 +546,7 @@ where
}
}
/// The set of stylesheets effective for a given XBL binding or Shadow Root.
/// The set of stylesheets effective for a given Shadow Root.
#[derive(MallocSizeOf)]
pub struct AuthorStylesheetSet<S>
where

11
components/style/stylesheets/origin.rs
View file

@ -10,18 +10,17 @@ use std::ops::BitOrAssign;
/// Each style rule has an origin, which determines where it enters the cascade.
///
/// <https://drafts.csswg.org/css-cascade/#cascading-origins>
#[derive(Clone, Copy, Debug, Eq, PartialEq, ToShmem)]
#[derive(Clone, Copy, Debug, Eq, MallocSizeOf, PartialEq, ToShmem)]
#[repr(u8)]
#[cfg_attr(feature = "servo", derive(MallocSizeOf))]
pub enum Origin {
/// <https://drafts.csswg.org/css-cascade/#cascade-origin-user-agent>
UserAgent = 1 << 0,
UserAgent = 0x1,
/// <https://drafts.csswg.org/css-cascade/#cascade-origin-user>
User = 1 << 1,
User = 0x2,
/// <https://drafts.csswg.org/css-cascade/#cascade-origin-author>
Author = 1 << 2,
Author = 0x4,
}
impl Origin {
@ -59,7 +58,7 @@ impl Origin {
bitflags! {
/// A set of origins. This is equivalent to Gecko's OriginFlags.
#[cfg_attr(feature = "servo", derive(MallocSizeOf))]
#[derive(MallocSizeOf)]
pub struct OriginSet: u8 {
/// <https://drafts.csswg.org/css-cascade/#cascade-origin-user-agent>
const ORIGIN_USER_AGENT = Origin::UserAgent as u8;

69
components/style/stylist.rs
View file

@ -48,8 +48,9 @@ use selectors::visitor::SelectorVisitor;
use selectors::NthIndexCache;
use servo_arc::{Arc, ArcBorrow};
use smallbitvec::SmallBitVec;
use std::ops;
use smallvec::SmallVec;
use std::sync::Mutex;
use std::{mem, ops};
use style_traits::viewport::ViewportConstraints;
/// The type of the stylesheets that the stylist contains.
@ -128,15 +129,28 @@ impl UserAgentCascadeDataCache {
Ok(new_data)
}
fn expire_unused(&mut self) {
// is_unique() returns false for static references, but we never have
// static references to UserAgentCascadeDatas. If we did, it may not
// make sense to put them in the cache in the first place.
self.entries.retain(|e| !e.is_unique())
/// Returns all the cascade datas that are not being used (that is, that are
/// held alive just by this cache).
///
/// We return them instead of dropping in place because some of them may
/// keep alive some other documents (like the SVG documents kept alive by
/// URL references), and thus we don't want to drop them while locking the
/// cache to not deadlock.
fn take_unused(&mut self) -> SmallVec<[Arc<UserAgentCascadeData>; 3]> {
let mut unused = SmallVec::new();
for i in (0..self.entries.len()).rev() {
// is_unique() returns false for static references, but we never
// have static references to UserAgentCascadeDatas. If we did, it
// may not make sense to put them in the cache in the first place.
if self.entries[i].is_unique() {
unused.push(self.entries.remove(i));
}
}
unused
}
fn clear(&mut self) {
self.entries.clear();
fn take_all(&mut self) -> Vec<Arc<UserAgentCascadeData>> {
mem::replace(&mut self.entries, Vec::new())
}
#[cfg(feature = "gecko")]
@ -254,13 +268,14 @@ impl DocumentCascadeData {
// First do UA sheets.
{
if flusher.flush_origin(Origin::UserAgent).dirty() {
let mut ua_cache = UA_CASCADE_DATA_CACHE.lock().unwrap();
let origin_sheets = flusher.origin_sheets(Origin::UserAgent);
let ua_cascade_data =
ua_cache.lookup(origin_sheets, device, quirks_mode, guards.ua_or_user)?;
ua_cache.expire_unused();
debug!("User agent data cache size {:?}", ua_cache.len());
self.user_agent = ua_cascade_data;
let _unused_cascade_datas = {
let mut ua_cache = UA_CASCADE_DATA_CACHE.lock().unwrap();
self.user_agent =
ua_cache.lookup(origin_sheets, device, quirks_mode, guards.ua_or_user)?;
debug!("User agent data cache size {:?}", ua_cache.len());
ua_cache.take_unused()
};
}
}
@ -591,6 +606,18 @@ impl Stylist {
.remove_stylesheet(Some(&self.device), sheet, guard)
}
/// Appends a new stylesheet to the current set.
#[inline]
pub fn sheet_count(&self, origin: Origin) -> usize {
self.stylesheets.sheet_count(origin)
}
/// Appends a new stylesheet to the current set.
#[inline]
pub fn sheet_at(&self, origin: Origin, index: usize) -> Option<&StylistSheet> {
self.stylesheets.get(origin, index)
}
/// Returns whether for any of the applicable style rule data a given
/// condition is true.
pub fn any_applicable_rule_data<E, F>(&self, element: E, mut f: F) -> bool
@ -605,7 +632,7 @@ impl Stylist {
let mut maybe = false;
let doc_author_rules_apply =
element.each_applicable_non_document_style_rule_data(|data, _, _| {
element.each_applicable_non_document_style_rule_data(|data, _| {
maybe = maybe || f(&*data);
});
@ -1041,12 +1068,6 @@ impl Stylist {
/// Returns whether, given a media feature change, any previously-applicable
/// style has become non-applicable, or vice-versa for each origin, using
/// `device`.
///
/// Passing `device` is needed because this is used for XBL in Gecko, which
/// can be stale in various ways, so we need to pass the device of the
/// document itself, which is what is kept up-to-date.
///
/// Arguably XBL should use something more lightweight than a Stylist.
pub fn media_features_change_changed_style(
&self,
guards: &StylesheetGuards,
@ -1230,11 +1251,11 @@ impl Stylist {
let mut results = SmallBitVec::new();
let matches_document_rules =
element.each_applicable_non_document_style_rule_data(|data, quirks_mode, host| {
element.each_applicable_non_document_style_rule_data(|data, host| {
matching_context.with_shadow_host(host, |matching_context| {
data.selectors_for_cache_revalidation.lookup(
element,
quirks_mode,
self.quirks_mode,
|selector_and_hashes| {
results.push(matches_selector(
&selector_and_hashes.selector,
@ -1356,7 +1377,7 @@ impl Stylist {
/// Shutdown the static data that this module stores.
pub fn shutdown() {
UA_CASCADE_DATA_CACHE.lock().unwrap().clear()
let _entries = UA_CASCADE_DATA_CACHE.lock().unwrap().take_all();
}
}

2
components/style/values/computed/image.rs
View file

@ -55,7 +55,7 @@ pub enum LineDirection {
pub type EndingShape = generic::EndingShape<Length, LengthPercentage>;
/// A computed gradient item.
pub type GradientItem = generic::GradientItem<Color, LengthPercentage>;
pub type GradientItem = generic::GenericGradientItem<Color, LengthPercentage>;
/// A computed color stop.
pub type ColorStop = generic::ColorStop<Color, LengthPercentage>;

1
components/style/values/computed/mod.rs
View file

@ -86,6 +86,7 @@ pub use self::transform::{TransformOrigin, TransformStyle, Translate};
#[cfg(feature = "gecko")]
pub use self::ui::CursorImage;
pub use self::ui::{Cursor, MozForceBrokenImageIcon, UserSelect};
pub use super::specified::TextTransform;
pub use super::specified::{BorderStyle, TextDecorationLine};
pub use super::{Auto, Either, None_};
pub use app_units::Au;

1
components/style/values/computed/text.rs
View file

@ -19,6 +19,7 @@ use std::fmt::{self, Write};
use style_traits::{CssWriter, ToCss};
pub use crate::values::specified::TextAlignKeyword as TextAlign;
pub use crate::values::specified::TextTransform;
pub use crate::values::specified::{OverflowWrap, WordBreak};
pub use crate::values::specified::{TextDecorationLine, TextEmphasisPosition};

59
components/style/values/generics/box.rs
View file

@ -6,6 +6,37 @@
use crate::values::animated::ToAnimatedZero;
#[derive(
Animate,
Clone,
ComputeSquaredDistance,
Copy,
Debug,
FromPrimitive,
MallocSizeOf,
Parse,
PartialEq,
SpecifiedValueInfo,
ToComputedValue,
ToCss,
ToResolvedValue,
ToShmem,
)]
#[repr(u8)]
#[allow(missing_docs)]
pub enum VerticalAlignKeyword {
Baseline,
Sub,
Super,
Top,
TextTop,
Middle,
Bottom,
TextBottom,
#[cfg(feature = "gecko")]
MozMiddleWithBaseline,
}
/// A generic value for the `vertical-align` property.
#[derive(
Animate,
@ -21,35 +52,21 @@ use crate::values::animated::ToAnimatedZero;
ToResolvedValue,
ToShmem,
)]
pub enum VerticalAlign<LengthPercentage> {
/// `baseline`
Baseline,
/// `sub`
Sub,
/// `super`
Super,
/// `top`
Top,
/// `text-top`
TextTop,
/// `middle`
Middle,
/// `bottom`
Bottom,
/// `text-bottom`
TextBottom,
/// `-moz-middle-with-baseline`
#[cfg(feature = "gecko")]
MozMiddleWithBaseline,
#[repr(C, u8)]
pub enum GenericVerticalAlign<LengthPercentage> {
/// One of the vertical-align keywords.
Keyword(VerticalAlignKeyword),
/// `<length-percentage>`
Length(LengthPercentage),
}
pub use self::GenericVerticalAlign as VerticalAlign;
impl<L> VerticalAlign<L> {
/// Returns `baseline`.
#[inline]
pub fn baseline() -> Self {
VerticalAlign::Baseline
VerticalAlign::Keyword(VerticalAlignKeyword::Baseline)
}
}

14
components/style/values/generics/counters.rs
View file

@ -45,7 +45,7 @@ pub struct CounterPair<Integer> {
ToResolvedValue,
ToShmem,
)]
pub struct CounterIncrement<I>(Counters<I>);
pub struct CounterIncrement<I>(pub Counters<I>);
impl<I> CounterIncrement<I> {
/// Returns a new value for `counter-increment`.
@ -77,7 +77,7 @@ impl<I> Deref for CounterIncrement<I> {
ToResolvedValue,
ToShmem,
)]
pub struct CounterSetOrReset<I>(Counters<I>);
pub struct CounterSetOrReset<I>(pub Counters<I>);
impl<I> CounterSetOrReset<I> {
/// Returns a new value for `counter-set` / `counter-reset`.
@ -102,6 +102,7 @@ impl<I> Deref for CounterSetOrReset<I> {
#[derive(
Clone,
Debug,
Default,
MallocSizeOf,
PartialEq,
SpecifiedValueInfo,
@ -112,10 +113,13 @@ impl<I> Deref for CounterSetOrReset<I> {
)]
pub struct Counters<I>(#[css(iterable, if_empty = "none")] Box<[CounterPair<I>]>);
impl<I> Default for Counters<I> {
impl<I> Counters<I> {
/// Move out the Box into a vector. This could just return the Box<>, but
/// Vec<> is a bit more convenient because Box<[T]> doesn't implement
/// IntoIter: https://github.com/rust-lang/rust/issues/59878
#[inline]
fn default() -> Self {
Counters(vec![].into_boxed_slice())
pub fn into_vec(self) -> Vec<CounterPair<I>> {
self.0.into_vec()
}
}

30
components/style/values/generics/image.rs
View file

@ -135,13 +135,23 @@ pub enum ShapeExtent {
#[derive(
Clone, Copy, Debug, MallocSizeOf, PartialEq, ToComputedValue, ToCss, ToResolvedValue, ToShmem,
)]
pub enum GradientItem<Color, LengthPercentage> {
/// A color stop.
ColorStop(ColorStop<Color, LengthPercentage>),
#[repr(C, u8)]
pub enum GenericGradientItem<Color, LengthPercentage> {
/// A simple color stop, without position.
SimpleColorStop(Color),
/// A complex color stop, with a position.
ComplexColorStop {
/// The color for the stop.
color: Color,
/// The position for the stop.
position: LengthPercentage,
},
/// An interpolation hint.
InterpolationHint(LengthPercentage),
}
pub use self::GenericGradientItem as GradientItem;
/// A color stop.
/// <https://drafts.csswg.org/css-images/#typedef-color-stop-list>
#[derive(
@ -154,6 +164,20 @@ pub struct ColorStop<Color, LengthPercentage> {
pub position: Option<LengthPercentage>,
}
impl<Color, LengthPercentage> ColorStop<Color, LengthPercentage> {
/// Convert the color stop into an appropriate `GradientItem`.
#[inline]
pub fn into_item(self) -> GradientItem<Color, LengthPercentage> {
match self.position {
Some(position) => GradientItem::ComplexColorStop {
color: self.color,
position,
},
None => GradientItem::SimpleColorStop(self.color),
}
}
}
/// Specified values for a paint worklet.
/// <https://drafts.css-houdini.org/css-paint-api/>
#[cfg_attr(feature = "servo", derive(MallocSizeOf))]

19
components/style/values/specified/box.rs
View file

@ -10,7 +10,7 @@ use crate::properties::{LonghandId, PropertyDeclarationId, PropertyFlags};
use crate::properties::{PropertyId, ShorthandId};
use crate::values::generics::box_::AnimationIterationCount as GenericAnimationIterationCount;
use crate::values::generics::box_::Perspective as GenericPerspective;
use crate::values::generics::box_::VerticalAlign as GenericVerticalAlign;
use crate::values::generics::box_::{GenericVerticalAlign, VerticalAlignKeyword};
use crate::values::specified::length::{LengthPercentage, NonNegativeLength};
use crate::values::specified::{AllowQuirks, Number};
use crate::values::{CustomIdent, KeyframesName};
@ -280,20 +280,9 @@ impl Parse for VerticalAlign {
return Ok(GenericVerticalAlign::Length(lp));
}
try_match_ident_ignore_ascii_case! { input,
"baseline" => Ok(GenericVerticalAlign::Baseline),
"sub" => Ok(GenericVerticalAlign::Sub),
"super" => Ok(GenericVerticalAlign::Super),
"top" => Ok(GenericVerticalAlign::Top),
"text-top" => Ok(GenericVerticalAlign::TextTop),
"middle" => Ok(GenericVerticalAlign::Middle),
"bottom" => Ok(GenericVerticalAlign::Bottom),
"text-bottom" => Ok(GenericVerticalAlign::TextBottom),
#[cfg(feature = "gecko")]
"-moz-middle-with-baseline" => {
Ok(GenericVerticalAlign::MozMiddleWithBaseline)
},
}
Ok(GenericVerticalAlign::Keyword(VerticalAlignKeyword::parse(
input,
)?))
}
}

104
components/style/values/specified/image.rs
View file

@ -8,6 +8,8 @@
//! [image]: https://drafts.csswg.org/css-images/#image-values
use crate::custom_properties::SpecifiedValue;
#[cfg(feature = "gecko")]
use crate::gecko_bindings::structs;
use crate::parser::{Parse, ParserContext};
#[cfg(feature = "gecko")]
use crate::values::computed::{Context, Position as ComputedPosition, ToComputedValue};
@ -266,16 +268,6 @@ impl Parse for Gradient {
},
};
#[cfg(feature = "gecko")]
{
use crate::gecko_bindings::structs;
if compat_mode == CompatMode::Moz &&
!unsafe { structs::StaticPrefs_sVarCache_layout_css_prefixes_gradients }
{
return Err(input.new_custom_error(StyleParseErrorKind::UnexpectedFunction(func)));
}
}
let (kind, items) = input.parse_nested_block(|i| {
let shape = match shape {
Shape::Linear => GradientKind::parse_linear(context, i, &mut compat_mode)?,
@ -492,24 +484,24 @@ impl Gradient {
if reverse_stops {
p.reverse();
}
Ok(generic::GradientItem::ColorStop(generic::ColorStop {
color: color,
position: Some(p.into()),
}))
Ok(generic::GradientItem::ComplexColorStop {
color,
position: p.into(),
})
})
})
.unwrap_or(vec![]);
if items.is_empty() {
items = vec![
generic::GradientItem::ColorStop(generic::ColorStop {
generic::GradientItem::ComplexColorStop {
color: Color::transparent().into(),
position: Some(Percentage::zero().into()),
}),
generic::GradientItem::ColorStop(generic::ColorStop {
position: Percentage::zero().into(),
},
generic::GradientItem::ComplexColorStop {
color: Color::transparent().into(),
position: Some(Percentage::hundred().into()),
}),
position: Percentage::hundred().into(),
},
];
} else if items.len() == 1 {
let first = items[0].clone();
@ -518,13 +510,16 @@ impl Gradient {
items.sort_by(|a, b| {
match (a, b) {
(
&generic::GradientItem::ColorStop(ref a),
&generic::GradientItem::ColorStop(ref b),
) => match (&a.position, &b.position) {
(
&Some(LengthPercentage::Percentage(a)),
&Some(LengthPercentage::Percentage(b)),
) => {
&generic::GradientItem::ComplexColorStop {
position: ref a_position,
..
},
&generic::GradientItem::ComplexColorStop {
position: ref b_position,
..
},
) => match (a_position, b_position) {
(&LengthPercentage::Percentage(a), &LengthPercentage::Percentage(b)) => {
return a.0.partial_cmp(&b.0).unwrap_or(Ordering::Equal);
},
_ => {},
@ -548,6 +543,16 @@ impl Gradient {
}
}
#[inline]
fn simple_moz_gradient() -> bool {
#[cfg(feature = "gecko")]
unsafe {
return structs::StaticPrefs_sVarCache_layout_css_simple_moz_gradient_enabled;
}
#[cfg(not(feature = "gecko"))]
return false;
}
impl GradientKind {
/// Parses a linear gradient.
/// CompatMode can change during `-moz-` prefixed gradient parsing if it come across a `to` keyword.
@ -583,16 +588,6 @@ impl GradientKind {
});
(shape, position.ok(), None, None)
},
CompatMode::WebKit => {
let position = input.try(|i| Position::parse(context, i));
let shape = input.try(|i| {
if position.is_ok() {
i.expect_comma()?;
}
EndingShape::parse(context, i, *compat_mode)
});
(shape, position.ok(), None, None)
},
// The syntax of `-moz-` prefixed radial gradient is:
// -moz-radial-gradient(
// [ [ <position> || <angle> ]? [ ellipse | [ <length> | <percentage> ]{2} ] , |
@ -603,7 +598,7 @@ impl GradientKind {
// where <extent-keyword> = closest-corner | closest-side | farthest-corner | farthest-side |
// cover | contain
// and <color-stop> = <color> [ <percentage> | <length> ]?
CompatMode::Moz => {
CompatMode::Moz if !simple_moz_gradient() => {
let mut position = input.try(|i| LegacyPosition::parse(context, i));
let angle = input.try(|i| Angle::parse(context, i)).ok();
if position.is_err() {
@ -619,6 +614,16 @@ impl GradientKind {
(shape, None, angle, position.ok())
},
_ => {
let position = input.try(|i| Position::parse(context, i));
let shape = input.try(|i| {
if position.is_ok() {
i.expect_comma()?;
}
EndingShape::parse(context, i, *compat_mode)
});
(shape, position.ok(), None, None)
},
};
if shape.is_ok() || position.is_some() || angle.is_some() || moz_position.is_some() {
@ -631,7 +636,7 @@ impl GradientKind {
#[cfg(feature = "gecko")]
{
if *compat_mode == CompatMode::Moz {
if *compat_mode == CompatMode::Moz && !simple_moz_gradient() {
// If this form can be represented in Modern mode, then convert the compat_mode to Modern.
if angle.is_none() {
*compat_mode = CompatMode::Modern;
@ -751,7 +756,7 @@ impl LineDirection {
input: &mut Parser<'i, 't>,
compat_mode: &mut CompatMode,
) -> Result<Self, ParseError<'i>> {
let mut _angle = if *compat_mode == CompatMode::Moz {
let mut _angle = if *compat_mode == CompatMode::Moz && !simple_moz_gradient() {
input.try(|i| Angle::parse(context, i)).ok()
} else {
// Gradients allow unitless zero angles as an exception, see:
@ -784,7 +789,7 @@ impl LineDirection {
#[cfg(feature = "gecko")]
{
// `-moz-` prefixed linear gradient can be both Angle and Position.
if *compat_mode == CompatMode::Moz {
if *compat_mode == CompatMode::Moz && !simple_moz_gradient() {
let position = i.try(|i| LegacyPosition::parse(context, i)).ok();
if _angle.is_none() {
_angle = i.try(|i| Angle::parse(context, i)).ok();
@ -874,7 +879,7 @@ impl EndingShape {
}
// -moz- prefixed radial gradient doesn't allow EndingShape's Length or LengthPercentage
// to come before shape keyword. Otherwise it conflicts with <position>.
if compat_mode != CompatMode::Moz {
if compat_mode != CompatMode::Moz || simple_moz_gradient() {
if let Ok(length) = input.try(|i| Length::parse(context, i)) {
if let Ok(y) = input.try(|i| LengthPercentage::parse(context, i)) {
if compat_mode == CompatMode::Modern {
@ -958,13 +963,16 @@ impl GradientItem {
if let Ok(multi_position) = input.try(|i| LengthPercentage::parse(context, i)) {
let stop_color = stop.color.clone();
items.push(generic::GradientItem::ColorStop(stop));
items.push(generic::GradientItem::ColorStop(ColorStop {
color: stop_color,
position: Some(multi_position),
}));
items.push(stop.into_item());
items.push(
ColorStop {
color: stop_color,
position: Some(multi_position),
}
.into_item(),
);
} else {
items.push(generic::GradientItem::ColorStop(stop));
items.push(stop.into_item());
}
seen_stop = true;

1
components/style/values/specified/mod.rs
View file

@ -80,6 +80,7 @@ pub use self::svg::{SVGLength, SVGOpacity, SVGPaint, SVGPaintKind};
pub use self::svg::{SVGPaintOrder, SVGStrokeDashArray, SVGWidth};
pub use self::svg_path::SVGPathData;
pub use self::table::XSpan;
pub use self::text::TextTransform;
pub use self::text::{InitialLetter, LetterSpacing, LineHeight, TextAlign};
pub use self::text::{OverflowWrap, TextEmphasisPosition, TextEmphasisStyle, WordBreak};
pub use self::text::{TextAlignKeyword, TextDecorationLine, TextOverflow, WordSpacing};

6
components/style/values/specified/position.rs
View file

@ -460,6 +460,11 @@ pub enum AutoFlow {
Column,
}
/// If `dense` is specified, `row` is implied.
fn is_row_dense(autoflow: &AutoFlow, dense: &bool) -> bool {
*autoflow == AutoFlow::Row && *dense
}
#[derive(
Clone,
Copy,
@ -477,6 +482,7 @@ pub enum AutoFlow {
/// specifying exactly how auto-placed items get flowed into the grid
pub struct GridAutoFlow {
/// Specifiy how auto-placement algorithm fills each `row` or `column` in turn
#[css(contextual_skip_if = "is_row_dense")]
pub autoflow: AutoFlow,
/// Specify use `dense` packing algorithm or not
#[css(represents_keyword)]

176
components/style/values/specified/text.rs
View file

@ -351,6 +351,177 @@ impl TextDecorationLine {
}
}
#[derive(
Clone,
Copy,
Debug,
Eq,
MallocSizeOf,
PartialEq,
SpecifiedValueInfo,
ToComputedValue,
ToResolvedValue,
ToShmem,
)]
#[repr(C)]
/// Specified value of the text-transform property, stored in two parts:
/// the case-related transforms (mutually exclusive, only one may be in effect), and others (non-exclusive).
pub struct TextTransform {
/// Case transform, if any.
pub case_: TextTransformCase,
/// Non-case transforms.
pub other_: TextTransformOther,
}
impl TextTransform {
#[inline]
/// Returns the initial value of text-transform
pub fn none() -> Self {
TextTransform {
case_: TextTransformCase::None,
other_: TextTransformOther::empty(),
}
}
#[inline]
/// Returns whether the value is 'none'
pub fn is_none(&self) -> bool {
self.case_ == TextTransformCase::None && self.other_.is_empty()
}
}
impl Parse for TextTransform {
fn parse<'i, 't>(
_context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<Self, ParseError<'i>> {
let mut result = TextTransform::none();
// Case keywords are mutually exclusive; other transforms may co-occur.
loop {
let location = input.current_source_location();
let ident = match input.next() {
Ok(&Token::Ident(ref ident)) => ident,
Ok(other) => return Err(location.new_unexpected_token_error(other.clone())),
Err(..) => break,
};
match_ignore_ascii_case! { ident,
"none" if result.is_none() => {
return Ok(result);
},
"uppercase" if result.case_ == TextTransformCase::None => {
result.case_ = TextTransformCase::Uppercase
},
"lowercase" if result.case_ == TextTransformCase::None => {
result.case_ = TextTransformCase::Lowercase
},
"capitalize" if result.case_ == TextTransformCase::None => {
result.case_ = TextTransformCase::Capitalize
},
"full-width" if !result.other_.intersects(TextTransformOther::FULL_WIDTH) => {
result.other_.insert(TextTransformOther::FULL_WIDTH)
},
"full-size-kana" if !result.other_.intersects(TextTransformOther::FULL_SIZE_KANA) => {
result.other_.insert(TextTransformOther::FULL_SIZE_KANA)
}
_ => return Err(location.new_custom_error(
SelectorParseErrorKind::UnexpectedIdent(ident.clone())
)),
}
}
if result.is_none() {
Err(input.new_custom_error(StyleParseErrorKind::UnspecifiedError))
} else {
Ok(result)
}
}
}
impl ToCss for TextTransform {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: Write,
{
if self.is_none() {
return dest.write_str("none");
}
if self.case_ != TextTransformCase::None {
self.case_.to_css(dest)?;
if !self.other_.is_empty() {
dest.write_str(" ")?;
}
}
self.other_.to_css(dest)
}
}
#[derive(
Clone,
Copy,
Debug,
Eq,
MallocSizeOf,
PartialEq,
SpecifiedValueInfo,
ToComputedValue,
ToCss,
ToResolvedValue,
ToShmem,
)]
#[repr(C)]
/// Specified keyword values for case transforms in the text-transform property. (These are exclusive.)
pub enum TextTransformCase {
/// No case transform.
None,
/// All uppercase.
Uppercase,
/// All lowercase.
Lowercase,
/// Capitalize each word.
Capitalize,
}
bitflags! {
#[derive(MallocSizeOf, SpecifiedValueInfo, ToComputedValue, ToResolvedValue, ToShmem)]
#[value_info(other_values = "none,full-width,full-size-kana")]
#[repr(C)]
/// Specified keyword values for non-case transforms in the text-transform property. (Non-exclusive.)
pub struct TextTransformOther: u8 {
/// full-width
const FULL_WIDTH = 1 << 0;
/// full-size-kana
const FULL_SIZE_KANA = 1 << 1;
}
}
impl ToCss for TextTransformOther {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: Write,
{
let mut writer = SequenceWriter::new(dest, " ");
let mut any = false;
macro_rules! maybe_write {
($ident:ident => $str:expr) => {
if self.contains(TextTransformOther::$ident) {
writer.raw_item($str)?;
any = true;
}
};
}
maybe_write!(FULL_WIDTH => "full-width");
maybe_write!(FULL_SIZE_KANA => "full-size-kana");
debug_assert!(any || self.is_empty());
Ok(())
}
}
/// Specified value of text-align keyword value.
#[derive(
Clone,
@ -394,8 +565,9 @@ pub enum TextAlignKeyword {
}
/// Specified value of text-align property.
#[cfg_attr(feature = "gecko", derive(MallocSizeOf))]
#[derive(Clone, Copy, Debug, Eq, Hash, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem)]
#[derive(
Clone, Copy, Debug, Eq, Hash, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
)]
pub enum TextAlign {
/// Keyword value of text-align property.
Keyword(TextAlignKeyword),