Auto merge of #20657 - emilio:gecko-sync, r=emilio

style: Sync changes from mozilla-central.

See each individual commit from details.
This commit is contained in:
bors-servo 2018-04-17 14:06:08 -04:00 committed by GitHub
commit 087bd20b6d
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14 changed files with 329 additions and 98 deletions

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@ -397,6 +397,14 @@ impl<'le> TElement for ServoLayoutElement<'le> {
unsafe { self.element.is_html_element() }
}
fn is_mathml_element(&self) -> bool {
*self.element.namespace() == ns!(mathml)
}
fn is_svg_element(&self) -> bool {
*self.element.namespace() == ns!(svg)
}
fn style_attribute(&self) -> Option<ArcBorrow<StyleLocked<PropertyDeclarationBlock>>> {
unsafe {
(*self.element.style_attribute()).as_ref().map(|x| x.borrow_arc())

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@ -135,7 +135,7 @@ use style::selector_parser::{RestyleDamage, Snapshot};
use style::shared_lock::{SharedRwLock as StyleSharedRwLock, SharedRwLockReadGuard};
use style::str::{split_html_space_chars, str_join};
use style::stylesheet_set::DocumentStylesheetSet;
use style::stylesheets::{Stylesheet, StylesheetContents, Origin, OriginSet};
use style::stylesheets::{CssRule, Stylesheet, Origin, OriginSet};
use task_source::TaskSource;
use time;
use timers::OneshotTimerCallback;
@ -216,16 +216,24 @@ impl PartialEq for StyleSheetInDocument {
}
impl ::style::stylesheets::StylesheetInDocument for StyleSheetInDocument {
fn contents(&self, guard: &SharedRwLockReadGuard) -> &StylesheetContents {
self.sheet.contents(guard)
fn origin(&self, guard: &SharedRwLockReadGuard) -> Origin {
self.sheet.origin(guard)
}
fn quirks_mode(&self, guard: &SharedRwLockReadGuard) -> QuirksMode {
self.sheet.quirks_mode(guard)
}
fn enabled(&self) -> bool {
self.sheet.enabled()
}
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList> {
self.sheet.media(guard)
}
fn enabled(&self) -> bool {
self.sheet.enabled()
fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule] {
self.sheet.rules(guard)
}
}

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@ -434,6 +434,15 @@ pub trait TElement:
/// Return whether this element is an element in the HTML namespace.
fn is_html_element(&self) -> bool;
/// Return whether this element is an element in the MathML namespace.
fn is_mathml_element(&self) -> bool;
/// Return whether this element is an element in the SVG namespace.
fn is_svg_element(&self) -> bool;
/// Return whether this element is an element in the XUL namespace.
fn is_xul_element(&self) -> bool { false }
/// Return the list of slotted nodes of this node.
fn slotted_nodes(&self) -> &[Self::ConcreteNode] {
&[]

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@ -5,6 +5,7 @@
//! Data needed to style a Gecko document.
use atomic_refcell::{AtomicRef, AtomicRefCell, AtomicRefMut};
use context::QuirksMode;
use dom::TElement;
use gecko_bindings::bindings::{self, RawServoStyleSet};
use gecko_bindings::structs::{self, RawGeckoPresContextOwned, ServoStyleSetSizes, ServoStyleSheet};
@ -17,7 +18,7 @@ use properties::ComputedValues;
use selector_parser::SnapshotMap;
use servo_arc::Arc;
use shared_lock::{Locked, SharedRwLockReadGuard, StylesheetGuards};
use stylesheets::{StylesheetContents, StylesheetInDocument};
use stylesheets::{CssRule, Origin, StylesheetContents, StylesheetInDocument};
use stylist::Stylist;
/// Little wrapper to a Gecko style sheet.
@ -58,6 +59,16 @@ impl GeckoStyleSheet {
&*(self.raw()._base.mInner as *const StyleSheetInfo as *const ServoStyleSheetInner)
}
}
/// Gets the StylesheetContents for this stylesheet.
pub fn contents(&self) -> &StylesheetContents {
debug_assert!(!self.inner().mContents.mRawPtr.is_null());
unsafe {
let contents =
(&**StylesheetContents::as_arc(&&*self.inner().mContents.mRawPtr)) as *const _;
&*contents
}
}
}
impl Drop for GeckoStyleSheet {
@ -74,13 +85,12 @@ impl Clone for GeckoStyleSheet {
}
impl StylesheetInDocument for GeckoStyleSheet {
fn contents(&self, _: &SharedRwLockReadGuard) -> &StylesheetContents {
debug_assert!(!self.inner().mContents.mRawPtr.is_null());
unsafe {
let contents =
(&**StylesheetContents::as_arc(&&*self.inner().mContents.mRawPtr)) as *const _;
&*contents
fn origin(&self, _guard: &SharedRwLockReadGuard) -> Origin {
self.contents().origin
}
fn quirks_mode(&self, _guard: &SharedRwLockReadGuard) -> QuirksMode {
self.contents().quirks_mode
}
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList> {
@ -103,6 +113,11 @@ impl StylesheetInDocument for GeckoStyleSheet {
fn enabled(&self) -> bool {
true
}
#[inline]
fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule] {
self.contents().rules(guard)
}
}
/// The container for data that a Servo-backed Gecko document needs to style

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@ -18478,7 +18478,7 @@ pub mod root {
eCSSProperty_flex_grow = 105,
eCSSProperty_flex_shrink = 106,
eCSSProperty_flex_wrap = 107,
eCSSProperty_float_ = 108,
eCSSProperty_float = 108,
eCSSProperty__moz_float_edge = 109,
eCSSProperty_flood_color = 110,
eCSSProperty_flood_opacity = 111,

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@ -673,11 +673,6 @@ impl<'le> GeckoElement<'le> {
self.as_node().node_info().mInner.mNamespaceID
}
#[inline]
fn is_xul_element(&self) -> bool {
self.namespace_id() == (structs::root::kNameSpaceID_XUL as i32)
}
#[inline]
fn has_id(&self) -> bool {
self.as_node()
@ -826,7 +821,7 @@ impl<'le> GeckoElement<'le> {
match self.parent_element() {
Some(e) => {
e.local_name() == &*local_name!("use") &&
e.namespace() == &*ns!("http://www.w3.org/2000/svg")
e.is_svg_element()
},
None => false,
}
@ -1058,7 +1053,22 @@ impl<'le> TElement for GeckoElement<'le> {
#[inline]
fn is_html_element(&self) -> bool {
self.namespace_id() == (structs::root::kNameSpaceID_XHTML as i32)
self.namespace_id() == structs::kNameSpaceID_XHTML as i32
}
#[inline]
fn is_mathml_element(&self) -> bool {
self.namespace_id() == structs::kNameSpaceID_MathML as i32
}
#[inline]
fn is_svg_element(&self) -> bool {
self.namespace_id() == structs::kNameSpaceID_SVG as i32
}
#[inline]
fn is_xul_element(&self) -> bool {
self.namespace_id() == structs::root::kNameSpaceID_XUL as i32
}
/// Return the list of slotted nodes of this node.

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@ -311,10 +311,7 @@ class Longhand(object):
return "<{} as ToAnimatedValue>::AnimatedValue".format(computed)
def nscsspropertyid(self):
ident = self.ident
if ident == "float":
ident = "float_"
return "nsCSSPropertyID::eCSSProperty_%s" % ident
return "nsCSSPropertyID::eCSSProperty_%s" % self.ident
class Shorthand(object):

View file

@ -23,6 +23,86 @@ pub struct StyleAdjuster<'a, 'b: 'a> {
style: &'a mut StyleBuilder<'b>,
}
#[cfg(feature = "gecko")]
fn is_topmost_svg_svg_element<E>(e: E) -> bool
where
E: TElement,
{
debug_assert!(e.is_svg_element());
if e.local_name() != &*atom!("svg") {
return false;
}
let parent = match e.traversal_parent() {
Some(n) => n,
None => return true,
};
if !parent.is_svg_element() {
return true;
}
parent.local_name() == &*atom!("foreignObject")
}
// https://drafts.csswg.org/css-display/#unbox
#[cfg(feature = "gecko")]
fn is_effective_display_none_for_display_contents<E>(element: E) -> bool
where
E: TElement,
{
use Atom;
// FIXME(emilio): This should be an actual static.
lazy_static! {
static ref SPECIAL_HTML_ELEMENTS: [Atom; 16] = [
atom!("br"), atom!("wbr"), atom!("meter"), atom!("progress"),
atom!("canvas"), atom!("embed"), atom!("object"), atom!("audio"),
atom!("iframe"), atom!("img"), atom!("video"), atom!("frame"),
atom!("frameset"), atom!("input"), atom!("textarea"),
atom!("select"),
];
}
// https://drafts.csswg.org/css-display/#unbox-svg
//
// There's a note about "Unknown elements", but there's not a good way to
// know what that means, or to get that information from here, and no other
// UA implements this either.
lazy_static! {
static ref SPECIAL_SVG_ELEMENTS: [Atom; 6] = [
atom!("svg"), atom!("a"), atom!("g"), atom!("use"),
atom!("tspan"), atom!("textPath"),
];
}
// https://drafts.csswg.org/css-display/#unbox-html
if element.is_html_element() {
let local_name = element.local_name();
return SPECIAL_HTML_ELEMENTS.iter().any(|name| &**name == local_name);
}
// https://drafts.csswg.org/css-display/#unbox-svg
if element.is_svg_element() {
if is_topmost_svg_svg_element(element) {
return true;
}
let local_name = element.local_name();
return !SPECIAL_SVG_ELEMENTS.iter().any(|name| &**name == local_name);
}
// https://drafts.csswg.org/css-display/#unbox-mathml
//
// We always treat XUL as display: none. We don't use display:
// contents in XUL anyway, so should be fine to be consistent with
// MathML unless there's a use case for it.
if element.is_mathml_element() || element.is_xul_element() {
return true;
}
false
}
impl<'a, 'b: 'a> StyleAdjuster<'a, 'b> {
/// Trivially constructs a new StyleAdjuster.
#[inline]
@ -377,20 +457,35 @@ impl<'a, 'b: 'a> StyleAdjuster<'a, 'b> {
}
}
/// Native anonymous content converts display:contents into display:inline.
/// Handles the relevant sections in:
///
/// https://drafts.csswg.org/css-display/#unbox-html
///
/// And forbidding display: contents in pseudo-elements, at least for now.
#[cfg(feature = "gecko")]
fn adjust_for_prohibited_display_contents(&mut self) {
// TODO: We should probably convert display:contents into display:none
// in some cases too: https://drafts.csswg.org/css-display/#unbox
//
// FIXME(emilio): ::before and ::after should support display: contents,
// see bug 1418138.
if self.style.pseudo.is_none() || self.style.get_box().clone_display() != Display::Contents
fn adjust_for_prohibited_display_contents<E>(&mut self, element: Option<E>)
where
E: TElement,
{
if self.style.get_box().clone_display() != Display::Contents {
return;
}
// FIXME(emilio): ::before and ::after should support display: contents,
// see bug 1418138.
if self.style.pseudo.is_some() {
self.style.mutate_box().set_display(Display::Inline);
return;
}
let element = match element {
Some(e) => e,
None => return,
};
if is_effective_display_none_for_display_contents(element) {
self.style.mutate_box().set_display(Display::None);
}
}
/// If a <fieldset> has grid/flex display type, we need to inherit
@ -657,7 +752,7 @@ impl<'a, 'b: 'a> StyleAdjuster<'a, 'b> {
self.adjust_for_visited(element);
#[cfg(feature = "gecko")]
{
self.adjust_for_prohibited_display_contents();
self.adjust_for_prohibited_display_contents(element);
self.adjust_for_fieldset_content(layout_parent_style);
}
self.adjust_for_top_layer();

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@ -478,7 +478,7 @@ where
sheet: &S,
guard: &SharedRwLockReadGuard,
) -> &mut SheetCollection<S> {
let origin = sheet.contents(guard).origin;
let origin = sheet.origin(guard);
self.collections.borrow_mut_for_origin(&origin)
}

View file

@ -6,6 +6,7 @@
//!
//! [import]: https://drafts.csswg.org/css-cascade-3/#at-import
use context::QuirksMode;
use cssparser::SourceLocation;
use media_queries::MediaList;
use shared_lock::{DeepCloneParams, DeepCloneWithLock};
@ -13,13 +14,52 @@ use shared_lock::{SharedRwLock, SharedRwLockReadGuard, ToCssWithGuard};
use std::fmt::{self, Write};
use str::CssStringWriter;
use style_traits::{CssWriter, ToCss};
use stylesheets::{StylesheetContents, StylesheetInDocument};
use stylesheets::{CssRule, Origin, StylesheetInDocument};
use values::CssUrl;
/// With asynchronous stylesheet parsing, we can't synchronously create a
/// GeckoStyleSheet. So we use this placeholder instead.
#[derive(Clone, Debug)]
pub struct PendingSheet {
origin: Origin,
quirks_mode: QuirksMode,
}
/// A sheet that is held from an import rule.
#[cfg(feature = "gecko")]
#[derive(Debug)]
pub struct ImportSheet(pub ::gecko::data::GeckoStyleSheet);
pub enum ImportSheet {
/// A bonafide stylesheet.
Sheet(::gecko::data::GeckoStyleSheet),
/// An @import created while parsing off-main-thread, whose Gecko sheet has
/// yet to be created and attached.
Pending(PendingSheet),
}
#[cfg(feature = "gecko")]
impl ImportSheet {
/// Creates a new ImportSheet from a GeckoStyleSheet.
pub fn new(sheet: ::gecko::data::GeckoStyleSheet) -> Self {
ImportSheet::Sheet(sheet)
}
/// Creates a pending ImportSheet for a load that has not started yet.
pub fn new_pending(origin: Origin, quirks_mode: QuirksMode) -> Self {
ImportSheet::Pending(PendingSheet {
origin,
quirks_mode,
})
}
/// Returns a reference to the GeckoStyleSheet in this ImportSheet, if it
/// exists.
pub fn as_sheet(&self) -> Option<&::gecko::data::GeckoStyleSheet> {
match *self {
ImportSheet::Sheet(ref s) => Some(s),
ImportSheet::Pending(_) => None,
}
}
}
#[cfg(feature = "gecko")]
impl DeepCloneWithLock for ImportSheet {
@ -31,10 +71,53 @@ impl DeepCloneWithLock for ImportSheet {
) -> Self {
use gecko::data::GeckoStyleSheet;
use gecko_bindings::bindings;
match *self {
ImportSheet::Sheet(ref s) => {
let clone = unsafe {
bindings::Gecko_StyleSheet_Clone(self.0.raw() as *const _, params.reference_sheet)
bindings::Gecko_StyleSheet_Clone(s.raw() as *const _, params.reference_sheet)
};
ImportSheet(unsafe { GeckoStyleSheet::from_addrefed(clone) })
ImportSheet::Sheet(unsafe { GeckoStyleSheet::from_addrefed(clone) })
},
ImportSheet::Pending(ref p) => ImportSheet::Pending(p.clone()),
}
}
}
#[cfg(feature = "gecko")]
impl StylesheetInDocument for ImportSheet {
fn origin(&self, _guard: &SharedRwLockReadGuard) -> Origin {
match *self {
ImportSheet::Sheet(ref s) => s.contents().origin,
ImportSheet::Pending(ref p) => p.origin,
}
}
fn quirks_mode(&self, _guard: &SharedRwLockReadGuard) -> QuirksMode {
match *self {
ImportSheet::Sheet(ref s) => s.contents().quirks_mode,
ImportSheet::Pending(ref p) => p.quirks_mode,
}
}
fn enabled(&self) -> bool {
match *self {
ImportSheet::Sheet(ref s) => s.enabled(),
ImportSheet::Pending(_) => true,
}
}
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList> {
match *self {
ImportSheet::Sheet(ref s) => s.media(guard),
ImportSheet::Pending(_) => None,
}
}
fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule] {
match *self {
ImportSheet::Sheet(ref s) => s.contents().rules(guard),
ImportSheet::Pending(_) => &[],
}
}
}
@ -43,19 +126,27 @@ impl DeepCloneWithLock for ImportSheet {
#[derive(Debug)]
pub struct ImportSheet(pub ::servo_arc::Arc<::stylesheets::Stylesheet>);
#[cfg(feature = "servo")]
impl StylesheetInDocument for ImportSheet {
/// Get the media associated with this stylesheet.
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList> {
self.0.media(guard)
fn origin(&self, guard: &SharedRwLockReadGuard) -> Origin {
self.0.origin(guard)
}
fn contents(&self, guard: &SharedRwLockReadGuard) -> &StylesheetContents {
self.0.contents(guard)
fn quirks_mode(&self, guard: &SharedRwLockReadGuard) -> QuirksMode {
self.0.quirks_mode(guard)
}
fn enabled(&self) -> bool {
self.0.enabled()
}
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList> {
self.0.media(guard)
}
fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule] {
self.0.rules(guard)
}
}
#[cfg(feature = "servo")]

View file

@ -9,7 +9,7 @@ use media_queries::Device;
use shared_lock::SharedRwLockReadGuard;
use smallvec::SmallVec;
use std::slice;
use stylesheets::{CssRule, CssRules, DocumentRule, ImportRule, MediaRule, SupportsRule};
use stylesheets::{CssRule, DocumentRule, ImportRule, MediaRule, SupportsRule};
use stylesheets::StylesheetInDocument;
/// An iterator over a list of rules.
@ -35,10 +35,10 @@ where
device: &'a Device,
quirks_mode: QuirksMode,
guard: &'a SharedRwLockReadGuard<'b>,
rules: &'a CssRules,
rules: &'a [CssRule],
) -> Self {
let mut stack = SmallVec::new();
stack.push(rules.0.iter());
stack.push(rules.iter());
Self {
device: device,
quirks_mode: quirks_mode,
@ -102,10 +102,7 @@ where
}
import_rule
.stylesheet
.contents(self.guard)
.rules
.read_with(self.guard)
.0
.rules(self.guard)
.iter()
},
CssRule::Document(ref doc_rule) => {

View file

@ -103,22 +103,10 @@ impl StylesheetContents {
}
}
/// Return an iterator using the condition `C`.
/// Returns a reference to the list of rules.
#[inline]
pub fn iter_rules<'a, 'b, C>(
&'a self,
device: &'a Device,
guard: &'a SharedRwLockReadGuard<'b>,
) -> RulesIterator<'a, 'b, C>
where
C: NestedRuleIterationCondition,
{
RulesIterator::new(
device,
self.quirks_mode,
guard,
&self.rules.read_with(guard),
)
pub fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule] {
&self.rules.read_with(guard).0
}
/// Measure heap usage.
@ -189,32 +177,20 @@ macro_rules! rule_filter {
/// A trait to represent a given stylesheet in a document.
pub trait StylesheetInDocument {
/// Get the contents of this stylesheet.
fn contents(&self, guard: &SharedRwLockReadGuard) -> &StylesheetContents;
/// Get the stylesheet origin.
fn origin(&self, guard: &SharedRwLockReadGuard) -> Origin {
self.contents(guard).origin
}
fn origin(&self, guard: &SharedRwLockReadGuard) -> Origin;
/// Get the stylesheet quirks mode.
fn quirks_mode(&self, guard: &SharedRwLockReadGuard) -> QuirksMode {
self.contents(guard).quirks_mode
}
fn quirks_mode(&self, guard: &SharedRwLockReadGuard) -> QuirksMode;
/// Get whether this stylesheet is enabled.
fn enabled(&self) -> bool;
/// Get the media associated with this stylesheet.
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList>;
/// Returns whether the style-sheet applies for the current device.
fn is_effective_for_device(&self, device: &Device, guard: &SharedRwLockReadGuard) -> bool {
match self.media(guard) {
Some(medialist) => medialist.evaluate(device, self.quirks_mode(guard)),
None => true,
}
}
/// Get whether this stylesheet is enabled.
fn enabled(&self) -> bool;
/// Returns a reference to the list of rules in this stylesheet.
fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule];
/// Return an iterator using the condition `C`.
#[inline]
@ -226,7 +202,15 @@ pub trait StylesheetInDocument {
where
C: NestedRuleIterationCondition,
{
self.contents(guard).iter_rules(device, guard)
RulesIterator::new(device, self.quirks_mode(guard), guard, self.rules(guard))
}
/// Returns whether the style-sheet applies for the current device.
fn is_effective_for_device(&self, device: &Device, guard: &SharedRwLockReadGuard) -> bool {
match self.media(guard) {
Some(medialist) => medialist.evaluate(device, self.quirks_mode(guard)),
None => true,
}
}
/// Return an iterator over the effective rules within the style-sheet, as
@ -255,8 +239,12 @@ pub trait StylesheetInDocument {
}
impl StylesheetInDocument for Stylesheet {
fn contents(&self, _: &SharedRwLockReadGuard) -> &StylesheetContents {
&self.contents
fn origin(&self, _guard: &SharedRwLockReadGuard) -> Origin {
self.contents.origin
}
fn quirks_mode(&self, _guard: &SharedRwLockReadGuard) -> QuirksMode {
self.contents.quirks_mode
}
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList> {
@ -266,6 +254,11 @@ impl StylesheetInDocument for Stylesheet {
fn enabled(&self) -> bool {
!self.disabled()
}
#[inline]
fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule] {
self.contents.rules(guard)
}
}
/// A simple wrapper over an `Arc<Stylesheet>`, with pointer comparison, and
@ -289,8 +282,12 @@ impl ToMediaListKey for DocumentStyleSheet {
}
impl StylesheetInDocument for DocumentStyleSheet {
fn contents(&self, guard: &SharedRwLockReadGuard) -> &StylesheetContents {
self.0.contents(guard)
fn origin(&self, guard: &SharedRwLockReadGuard) -> Origin {
self.0.origin(guard)
}
fn quirks_mode(&self, guard: &SharedRwLockReadGuard) -> QuirksMode {
self.0.quirks_mode(guard)
}
fn media<'a>(&'a self, guard: &'a SharedRwLockReadGuard) -> Option<&'a MediaList> {
@ -300,6 +297,11 @@ impl StylesheetInDocument for DocumentStyleSheet {
fn enabled(&self) -> bool {
self.0.enabled()
}
#[inline]
fn rules<'a, 'b: 'a>(&'a self, guard: &'b SharedRwLockReadGuard) -> &'a [CssRule] {
self.0.rules(guard)
}
}
impl Stylesheet {

View file

@ -2048,7 +2048,7 @@ pub extern "C" fn Servo_ImportRule_GetSheet(
rule: RawServoImportRuleBorrowed,
) -> *const ServoStyleSheet {
read_locked_arc(rule, |rule: &ImportRule| {
rule.stylesheet.0.raw() as *const ServoStyleSheet
rule.stylesheet.as_sheet().unwrap().raw() as *const ServoStyleSheet
})
}

View file

@ -55,9 +55,8 @@ impl StyleStylesheetLoader for StylesheetLoader {
debug_assert!(!child_sheet.is_null(),
"Import rules should always have a strong sheet");
let stylesheet = unsafe {
ImportSheet(GeckoStyleSheet::from_addrefed(child_sheet))
};
let sheet = unsafe { GeckoStyleSheet::from_addrefed(child_sheet) };
let stylesheet = ImportSheet::new(sheet);
Arc::new(lock.wrap(ImportRule { url, source_location, stylesheet }))
}
}