From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- servo/components/style/values/generics/length.rs | 304 +++++++++++++++++++++++ 1 file changed, 304 insertions(+) create mode 100644 servo/components/style/values/generics/length.rs (limited to 'servo/components/style/values/generics/length.rs') diff --git a/servo/components/style/values/generics/length.rs b/servo/components/style/values/generics/length.rs new file mode 100644 index 0000000000..de0dd7fbc1 --- /dev/null +++ b/servo/components/style/values/generics/length.rs @@ -0,0 +1,304 @@ +/* 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/. */ + +//! Generic types for CSS values related to length. + +use crate::parser::{Parse, ParserContext}; +#[cfg(feature = "gecko")] +use crate::Zero; +use cssparser::Parser; +use style_traits::ParseError; + +/// A ` | auto` value. +#[allow(missing_docs)] +#[derive( + Animate, + Clone, + ComputeSquaredDistance, + Copy, + Debug, + MallocSizeOf, + PartialEq, + SpecifiedValueInfo, + ToAnimatedValue, + ToAnimatedZero, + ToComputedValue, + ToCss, + ToResolvedValue, + ToShmem, +)] +#[repr(C, u8)] +pub enum GenericLengthPercentageOrAuto { + LengthPercentage(LengthPercent), + Auto, +} + +pub use self::GenericLengthPercentageOrAuto as LengthPercentageOrAuto; + +impl LengthPercentageOrAuto { + /// `auto` value. + #[inline] + pub fn auto() -> Self { + LengthPercentageOrAuto::Auto + } + + /// Whether this is the `auto` value. + #[inline] + pub fn is_auto(&self) -> bool { + matches!(*self, LengthPercentageOrAuto::Auto) + } + + /// A helper function to parse this with quirks or not and so forth. + pub fn parse_with<'i, 't>( + context: &ParserContext, + input: &mut Parser<'i, 't>, + parser: impl FnOnce( + &ParserContext, + &mut Parser<'i, 't>, + ) -> Result>, + ) -> Result> { + if input.try_parse(|i| i.expect_ident_matching("auto")).is_ok() { + return Ok(LengthPercentageOrAuto::Auto); + } + + Ok(LengthPercentageOrAuto::LengthPercentage(parser( + context, input, + )?)) + } +} + +impl LengthPercentageOrAuto +where + LengthPercentage: Clone, +{ + /// Resolves `auto` values by calling `f`. + #[inline] + pub fn auto_is(&self, f: impl FnOnce() -> LengthPercentage) -> LengthPercentage { + match self { + LengthPercentageOrAuto::LengthPercentage(length) => length.clone(), + LengthPercentageOrAuto::Auto => f(), + } + } + + /// Returns the non-`auto` value, if any. + #[inline] + pub fn non_auto(&self) -> Option { + match self { + LengthPercentageOrAuto::LengthPercentage(length) => Some(length.clone()), + LengthPercentageOrAuto::Auto => None, + } + } + + /// Maps the length of this value. + pub fn map(&self, f: impl FnOnce(LengthPercentage) -> T) -> LengthPercentageOrAuto { + match self { + LengthPercentageOrAuto::LengthPercentage(l) => { + LengthPercentageOrAuto::LengthPercentage(f(l.clone())) + }, + LengthPercentageOrAuto::Auto => LengthPercentageOrAuto::Auto, + } + } +} + +impl Zero for LengthPercentageOrAuto { + fn zero() -> Self { + LengthPercentageOrAuto::LengthPercentage(Zero::zero()) + } + + fn is_zero(&self) -> bool { + match *self { + LengthPercentageOrAuto::LengthPercentage(ref l) => l.is_zero(), + LengthPercentageOrAuto::Auto => false, + } + } +} + +impl Parse for LengthPercentageOrAuto { + fn parse<'i, 't>( + context: &ParserContext, + input: &mut Parser<'i, 't>, + ) -> Result> { + Self::parse_with(context, input, LengthPercentage::parse) + } +} + +/// A generic value for the `width`, `height`, `min-width`, or `min-height` property. +/// +/// Unlike `max-width` or `max-height` properties, a Size can be `auto`, +/// and cannot be `none`. +/// +/// Note that it only accepts non-negative values. +#[allow(missing_docs)] +#[derive( + Animate, + Clone, + ComputeSquaredDistance, + Copy, + Debug, + MallocSizeOf, + PartialEq, + SpecifiedValueInfo, + ToAnimatedValue, + ToAnimatedZero, + ToComputedValue, + ToCss, + ToResolvedValue, + ToShmem, +)] +#[repr(C, u8)] +pub enum GenericSize { + LengthPercentage(LengthPercent), + Auto, + #[animation(error)] + MaxContent, + #[animation(error)] + MinContent, + #[animation(error)] + FitContent, + #[animation(error)] + MozAvailable, + #[animation(error)] + #[css(function = "fit-content")] + FitContentFunction(LengthPercent), +} + +pub use self::GenericSize as Size; + +impl Size { + /// `auto` value. + #[inline] + pub fn auto() -> Self { + Size::Auto + } + + /// Returns whether we're the auto value. + #[inline] + pub fn is_auto(&self) -> bool { + matches!(*self, Size::Auto) + } +} + +/// A generic value for the `max-width` or `max-height` property. +#[allow(missing_docs)] +#[derive( + Animate, + Clone, + ComputeSquaredDistance, + Copy, + Debug, + MallocSizeOf, + PartialEq, + SpecifiedValueInfo, + ToAnimatedValue, + ToAnimatedZero, + ToComputedValue, + ToCss, + ToResolvedValue, + ToShmem, +)] +#[repr(C, u8)] +pub enum GenericMaxSize { + LengthPercentage(LengthPercent), + None, + #[animation(error)] + MaxContent, + #[animation(error)] + MinContent, + #[animation(error)] + FitContent, + #[animation(error)] + MozAvailable, + #[animation(error)] + #[css(function = "fit-content")] + FitContentFunction(LengthPercent), +} + +pub use self::GenericMaxSize as MaxSize; + +impl MaxSize { + /// `none` value. + #[inline] + pub fn none() -> Self { + MaxSize::None + } +} + +/// A generic `` | `` value for the `tab-size` property. +#[derive( + Animate, + Clone, + ComputeSquaredDistance, + Copy, + Debug, + MallocSizeOf, + Parse, + PartialEq, + SpecifiedValueInfo, + ToAnimatedValue, + ToAnimatedZero, + ToComputedValue, + ToCss, + ToResolvedValue, + ToShmem, +)] +#[repr(C, u8)] +pub enum GenericLengthOrNumber { + /// A number. + /// + /// NOTE: Numbers need to be before lengths, in order to parse them + /// first, since `0` should be a number, not the `0px` length. + Number(N), + /// A length. + Length(L), +} + +pub use self::GenericLengthOrNumber as LengthOrNumber; + +impl Zero for LengthOrNumber { + fn zero() -> Self { + LengthOrNumber::Number(Zero::zero()) + } + + fn is_zero(&self) -> bool { + match *self { + LengthOrNumber::Number(ref n) => n.is_zero(), + LengthOrNumber::Length(..) => false, + } + } +} + +/// A generic `` | normal` value. +#[derive( + Animate, + Clone, + ComputeSquaredDistance, + Copy, + Debug, + MallocSizeOf, + Parse, + PartialEq, + SpecifiedValueInfo, + ToAnimatedValue, + ToAnimatedZero, + ToComputedValue, + ToCss, + ToResolvedValue, + ToShmem, +)] +#[repr(C, u8)] +#[allow(missing_docs)] +pub enum GenericLengthPercentageOrNormal { + LengthPercentage(LengthPercent), + Normal, +} + +pub use self::GenericLengthPercentageOrNormal as LengthPercentageOrNormal; + +impl LengthPercentageOrNormal { + /// Returns the normal value. + #[inline] + pub fn normal() -> Self { + LengthPercentageOrNormal::Normal + } +} -- cgit v1.2.3