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Bug 1317209 - Part 4: Put animation rule to cascade. r=emilio

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We try to get the servo animation rule and declarations during elements
matching, and put the rule to the right priority.
Note: According to CSS Cascade Level spec, Animations is between
      Important author declarations and Normal override declarations.
This commit is contained in:
Boris Chiou 2017-01-24 15:32:14 +08:00
parent c09b204d5d
commit 3a89e89952
2 changed files with 20 additions and 4 deletions
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20
components/style/stylist.rs
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@ -21,6 +21,7 @@ use rule_tree::{RuleTree, StrongRuleNode, StyleSource};
use selector_parser::{ElementExt, SelectorImpl, PseudoElement, Snapshot};
use selectors::Element;
use selectors::bloom::BloomFilter;
use selectors::matching::AFFECTED_BY_ANIMATIONS;
use selectors::matching::{AFFECTED_BY_STYLE_ATTRIBUTE, AFFECTED_BY_PRESENTATIONAL_HINTS};
use selectors::matching::{MatchingReason, StyleRelations, matches_complex_selector};
use selectors::parser::{Selector, SimpleSelector, LocalName as LocalNameSelector, ComplexSelector};
@ -384,6 +385,7 @@ impl Stylist {
let mut declarations = vec![];
self.push_applicable_declarations(element,
None,
None,
None,
Some(pseudo),
@ -490,6 +492,7 @@ impl Stylist {
element: &E,
parent_bf: Option<&BloomFilter>,
style_attribute: Option<&Arc<RwLock<PropertyDeclarationBlock>>>,
animation_rule: Option<Arc<RwLock<PropertyDeclarationBlock>>>,
pseudo_element: Option<&PseudoElement>,
applicable_declarations: &mut V,
reason: MatchingReason) -> StyleRelations
@ -560,7 +563,16 @@ impl Stylist {
debug!("style attr: {:?}", relations);
// Step 5: Author-supplied `!important` rules.
// Step 5: Animations.
if let Some(anim) = animation_rule {
relations |= AFFECTED_BY_ANIMATIONS;
Push::push(
applicable_declarations,
ApplicableDeclarationBlock::from_declarations(anim.clone(), Importance::Normal));
}
debug!("animation: {:?}", relations);
// Step 6: Author-supplied `!important` rules.
map.author.get_all_matching_rules(element,
parent_bf,
applicable_declarations,
@ -570,7 +582,7 @@ impl Stylist {
debug!("author important: {:?}", relations);
// Step 6: `!important` style attributes.
// Step 7: `!important` style attributes.
if let Some(sa) = style_attribute {
if sa.read().any_important() {
relations |= AFFECTED_BY_STYLE_ATTRIBUTE;
@ -582,7 +594,7 @@ impl Stylist {
debug!("style attr important: {:?}", relations);
// Step 7: User `!important` rules.
// Step 8: User `!important` rules.
map.user.get_all_matching_rules(element,
parent_bf,
applicable_declarations,
@ -595,7 +607,7 @@ impl Stylist {
debug!("skipping non-agent rules");
}
// Step 8: UA `!important` rules.
// Step 9: UA `!important` rules.
map.user_agent.get_all_matching_rules(element,
parent_bf,
applicable_declarations,