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style: Enable lookup and computation of container size queries

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Differential Revision: https://phabricator.services.mozilla.com/D158057
This commit is contained in:
David Shin 2022-10-17 17:26:13 +00:00 • committed by Martin Robinson
parent 5cbb81a0df
commit 27958b191a
5 changed files with 326 additions and 45 deletions
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20
components/style/values/computed/mod.rs
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@ -22,7 +22,9 @@ use crate::media_queries::Device;
use crate::properties;
use crate::properties::{ComputedValues, LonghandId, StyleBuilder};
use crate::rule_cache::RuleCacheConditions;
use crate::stylesheets::container_rule::ContainerInfo;
use crate::stylesheets::container_rule::{
ContainerInfo, ContainerSizeQuery, ContainerSizeQueryResult,
};
use crate::values::specified::length::FontBaseSize;
use crate::{ArcSlice, Atom, One};
use euclid::{default, Point2D, Rect, Size2D};
@ -189,9 +191,18 @@ pub struct Context<'a> {
///
/// FIXME(emilio): Drop the refcell.
pub rule_cache_conditions: RefCell<&'a mut RuleCacheConditions>,
/// Container size query for this context.
container_size_query: RefCell<ContainerSizeQuery<'a>>,
}
impl<'a> Context<'a> {
/// Lazily evaluate the container size query, returning the result.
pub fn get_container_size_query(&self) -> ContainerSizeQueryResult {
let mut resolved = self.container_size_query.borrow_mut();
resolved.get().clone()
}
/// Creates a suitable context for media query evaluation, in which
/// font-relative units compute against the system_font, and executes `f`
/// with it.
@ -209,6 +220,7 @@ impl<'a> Context<'a> {
container_info: None,
for_non_inherited_property: None,
rule_cache_conditions: RefCell::new(&mut conditions),
container_size_query: RefCell::new(ContainerSizeQuery::none()),
};
f(&context)
}
@ -218,6 +230,7 @@ impl<'a> Context<'a> {
pub fn for_container_query_evaluation<F, R>(
device: &Device,
container_info_and_style: Option<(ContainerInfo, Arc<ComputedValues>)>,
container_size_query: ContainerSizeQuery,
f: F,
) -> R
where
@ -241,6 +254,7 @@ impl<'a> Context<'a> {
container_info,
for_non_inherited_property: None,
rule_cache_conditions: RefCell::new(&mut conditions),
container_size_query: RefCell::new(container_size_query),
};
f(&context)
@ -251,6 +265,7 @@ impl<'a> Context<'a> {
builder: StyleBuilder<'a>,
quirks_mode: QuirksMode,
rule_cache_conditions: &'a mut RuleCacheConditions,
container_size_query: ContainerSizeQuery<'a>,
) -> Self {
Self {
builder,
@ -261,6 +276,7 @@ impl<'a> Context<'a> {
for_smil_animation: false,
for_non_inherited_property: None,
rule_cache_conditions: RefCell::new(rule_cache_conditions),
container_size_query: RefCell::new(container_size_query),
}
}
@ -270,6 +286,7 @@ impl<'a> Context<'a> {
for_smil_animation: bool,
quirks_mode: QuirksMode,
rule_cache_conditions: &'a mut RuleCacheConditions,
container_size_query: ContainerSizeQuery<'a>,
) -> Self {
Self {
builder,
@ -280,6 +297,7 @@ impl<'a> Context<'a> {
for_smil_animation,
for_non_inherited_property: None,
rule_cache_conditions: RefCell::new(rule_cache_conditions),
container_size_query: RefCell::new(container_size_query),
}
}