mirror of
https://github.com/servo/servo.git
synced 2025-10-08 20:49:24 +01:00
6c5cf5e2ec
Unfortunately this means that we lose the NS_STYLE_INHERIT_BIT optimization to avoid posting changes if we had not requested the struct. In practice, I'm not sure this optimization matters much, though, and we already compare all the structs anyway. We _could_ keep a weak parent pointer from the text style if needed, given we're going to keep alive the text style at least until the parent style context goes away, so should be safe, but I don't think the extra churn is worth it, to be honest. Happy to do so as part of bug 1368290 if you think it's worth it. Bug: 1385896 Reviewed-by: heycam MozReview-Commit-ID: ka6tNwf4Ke
48 lines
2 KiB
Rust
48 lines
2 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 http://mozilla.org/MPL/2.0/. */
|
|
|
|
//! Misc information about a given computed style.
|
|
|
|
bitflags! {
|
|
/// Misc information about a given computed style.
|
|
///
|
|
/// All flags are currently inherited for text, pseudo elements, and
|
|
/// anonymous boxes, see StyleBuilder::for_inheritance and its callsites.
|
|
/// If we ever want to add some flags that shouldn't inherit for them,
|
|
/// we might want to add a function to handle this.
|
|
pub flags ComputedValueFlags: u8 {
|
|
/// Whether the style or any of the ancestors has a text-decoration-line
|
|
/// property that should get propagated to descendants.
|
|
///
|
|
/// text-decoration-line is a reset property, but gets propagated in the
|
|
/// frame/box tree.
|
|
const HAS_TEXT_DECORATION_LINES = 1 << 0,
|
|
|
|
/// Whether line break inside should be suppressed.
|
|
///
|
|
/// If this flag is set, the line should not be broken inside,
|
|
/// which means inlines act as if nowrap is set, <br> element is
|
|
/// suppressed, and blocks are inlinized.
|
|
///
|
|
/// This bit is propagated to all children of line participants.
|
|
/// It is currently used by ruby to make its content unbreakable.
|
|
const SHOULD_SUPPRESS_LINEBREAK = 1 << 1,
|
|
|
|
/// A flag used to mark text that that has text-combine-upright.
|
|
///
|
|
/// This is used from Gecko's layout engine.
|
|
const IS_TEXT_COMBINED = 1 << 2,
|
|
|
|
/// A flag used to mark styles under a relevant link that is also
|
|
/// visited.
|
|
const IS_RELEVANT_LINK_VISITED = 1 << 3,
|
|
|
|
/// A flag used to mark styles which are a pseudo-element or under one.
|
|
const IS_IN_PSEUDO_ELEMENT_SUBTREE = 1 << 4,
|
|
|
|
/// A flag used to mark styles which are in a display: none subtree, or
|
|
/// under one.
|
|
const IS_IN_DISPLAY_NONE_SUBTREE = 1 << 5,
|
|
}
|
|
}
|