mirror of
https://github.com/servo/servo.git
synced 2025-06-24 17:14:33 +01:00
72302e2dae
During layout it is often useful, for various specification reasons, to know if an element is the `<body>` element of an `<html>` element root. There are a couple places where a brittle heuristic is used to detect `<body>` elements. This information is going to be even more important to properly handle `<html>` elements that inherit their overflow property from their `<body>` children. Implementing this properly requires updating the DOM wrapper interface. This check does reach up to the parent of thread-safe nodes, but this is essentially the same kind of operation that `parent_style()` does, so is ostensibly safe. This change should not change any behavior and is just a preparation step for properly handle `<body>` overflow.
61 lines
1.4 KiB
Rust
61 lines
1.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
|
|
|
|
#![deny(unsafe_code)]
|
|
|
|
#[macro_use]
|
|
extern crate log;
|
|
#[macro_use]
|
|
extern crate serde;
|
|
|
|
mod cell;
|
|
pub mod context;
|
|
pub mod data;
|
|
pub mod display_list;
|
|
mod dom_traversal;
|
|
pub mod element_data;
|
|
mod flexbox;
|
|
pub mod flow;
|
|
mod formatting_contexts;
|
|
mod fragment_tree;
|
|
mod fragments;
|
|
pub mod geom;
|
|
#[macro_use]
|
|
pub mod layout_debug;
|
|
mod lists;
|
|
mod opaque_node;
|
|
mod positioned;
|
|
pub mod query;
|
|
mod replaced;
|
|
mod sizing;
|
|
mod style_ext;
|
|
pub mod traversal;
|
|
pub mod wrapper;
|
|
|
|
pub use flow::{BoxTree, FragmentTree};
|
|
|
|
use crate::geom::flow_relative::Vec2;
|
|
use style::properties::ComputedValues;
|
|
use style::values::computed::{Length, LengthOrAuto};
|
|
|
|
pub struct ContainingBlock<'a> {
|
|
inline_size: Length,
|
|
block_size: LengthOrAuto,
|
|
style: &'a ComputedValues,
|
|
}
|
|
|
|
struct DefiniteContainingBlock<'a> {
|
|
size: Vec2<Length>,
|
|
style: &'a ComputedValues,
|
|
}
|
|
|
|
impl<'a> From<&'_ DefiniteContainingBlock<'a>> for ContainingBlock<'a> {
|
|
fn from(definite: &DefiniteContainingBlock<'a>) -> Self {
|
|
ContainingBlock {
|
|
inline_size: definite.size.inline,
|
|
block_size: LengthOrAuto::LengthPercentage(definite.size.block),
|
|
style: definite.style,
|
|
}
|
|
}
|
|
}
|