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Bug 1349651 - stylo: Implement HasAuthorSpecifiedRules.

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This commit is contained in:
Matt Brubeck 2017-05-09 09:54:24 -07:00
parent 121662aa57
commit 32d37795a2
8 changed files with 376 additions and 28 deletions
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70
ports/geckolib/glue.rs
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@ -32,6 +32,7 @@ use style::gecko_bindings::bindings::{RawServoMediaList, RawServoMediaListBorrow
use style::gecko_bindings::bindings::{RawServoMediaRule, RawServoMediaRuleBorrowed};
use style::gecko_bindings::bindings::{RawServoNamespaceRule, RawServoNamespaceRuleBorrowed};
use style::gecko_bindings::bindings::{RawServoPageRule, RawServoPageRuleBorrowed};
use style::gecko_bindings::bindings::{RawServoRuleNodeBorrowed, RawServoRuleNodeStrong};
use style::gecko_bindings::bindings::{RawServoStyleSetBorrowed, RawServoStyleSetOwned};
use style::gecko_bindings::bindings::{RawServoStyleSheetBorrowed, ServoComputedValuesBorrowed};
use style::gecko_bindings::bindings::{RawServoStyleSheetStrong, ServoComputedValuesStrong};
@ -77,7 +78,7 @@ use style::properties::SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP;
use style::properties::animated_properties::{AnimationValue, ComputeDistance, Interpolate, TransitionProperty};
use style::properties::parse_one_declaration;
use style::restyle_hints::{self, RestyleHint};
use style::rule_tree::StyleSource;
use style::rule_tree::{StrongRuleNode, StyleSource};
use style::selector_parser::PseudoElementCascadeType;
use style::sequential;
use style::shared_lock::{SharedRwLock, SharedRwLockReadGuard, StylesheetGuards, ToCssWithGuard, Locked};
@ -938,6 +939,37 @@ pub extern "C" fn Servo_ComputedValues_GetForAnonymousBox(parent_style_or_null:
.into_strong()
}
#[no_mangle]
pub extern "C" fn Servo_ResolveRuleNode(element: RawGeckoElementBorrowed,
pseudo_tag: *mut nsIAtom,
raw_data: RawServoStyleSetBorrowed)
-> RawServoRuleNodeStrong
{
let element = GeckoElement(element);
let doc_data = PerDocumentStyleData::from_ffi(raw_data);
let guard = (*GLOBAL_STYLE_DATA).shared_lock.read();
let data = element.mutate_data().unwrap();
let styles = match data.get_styles() {
Some(styles) => styles,
None => {
warn!("Calling Servo_ResolveRuleNode on unstyled element");
return Strong::null()
}
};
let maybe_rules = if pseudo_tag.is_null() {
Some(styles.primary.rules.clone())
} else {
get_pseudo_rule_node(&guard, element, pseudo_tag, styles, doc_data)
};
match maybe_rules {
Some(rule_node) => rule_node.into_strong(),
None => Strong::null(),
}
}
#[no_mangle]
pub extern "C" fn Servo_ResolvePseudoStyle(element: RawGeckoElementBorrowed,
pseudo_tag: *mut nsIAtom, is_probe: bool,
@ -967,6 +999,42 @@ pub extern "C" fn Servo_ResolvePseudoStyle(element: RawGeckoElementBorrowed,
}
}
#[no_mangle]
pub extern "C" fn Servo_HasAuthorSpecifiedRules(rule_node: RawServoRuleNodeBorrowed,
element: RawGeckoElementBorrowed,
rule_type_mask: u32,
author_colors_allowed: bool)
-> bool
{
let element = GeckoElement(element);
let guard = (*GLOBAL_STYLE_DATA).shared_lock.read();
let guards = StylesheetGuards::same(&guard);
StrongRuleNode::from_ffi(&rule_node).has_author_specified_rules(element,
&guards,
rule_type_mask,
author_colors_allowed)
}
fn get_pseudo_rule_node(guard: &SharedRwLockReadGuard,
element: GeckoElement,
pseudo_tag: *mut nsIAtom,
styles: &ElementStyles,
doc_data: &PerDocumentStyleData)
-> Option<StrongRuleNode>
{
let pseudo = PseudoElement::from_atom_unchecked(Atom::from(pseudo_tag), false);
match pseudo.cascade_type() {
PseudoElementCascadeType::Eager => styles.pseudos.get(&pseudo).map(|s| s.rules.clone()),
PseudoElementCascadeType::Precomputed => unreachable!("No anonymous boxes"),
PseudoElementCascadeType::Lazy => {
let d = doc_data.borrow_mut();
let guards = StylesheetGuards::same(guard);
d.stylist.lazy_pseudo_rules(&guards, &element, &pseudo)
},
}
}
fn get_pseudo_style(guard: &SharedRwLockReadGuard,
element: GeckoElement,
pseudo_tag: *mut nsIAtom,