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style: Use cbindgen for grid track sizing.

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Differential Revision: https://phabricator.services.mozilla.com/D36118
This commit is contained in:
Emilio Cobos Álvarez 2019-06-28 09:46:02 +00:00
parent 034557a717
commit cc15afa348
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GPG key ID: E1152D0994E4BF8A
6 changed files with 75 additions and 257 deletions
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77
components/style/gecko/conversions.rs
View file

@ -14,14 +14,11 @@ use crate::gecko::values::GeckoStyleCoordConvertible;
use crate::gecko_bindings::bindings;
use crate::gecko_bindings::structs::{self, nsStyleCoord_CalcValue, Matrix4x4Components};
use crate::gecko_bindings::structs::{nsStyleImage, nsresult};
use crate::gecko_bindings::sugar::ns_style_coord::{CoordData, CoordDataMut, CoordDataValue};
use crate::stylesheets::RulesMutateError;
use crate::values::computed::transform::Matrix3D;
use crate::values::computed::url::ComputedImageUrl;
use crate::values::computed::{Angle, Gradient, Image};
use crate::values::computed::{Integer, LengthPercentage};
use crate::values::computed::{Gradient, Image, LengthPercentage};
use crate::values::computed::{Length, Percentage, TextAlign};
use crate::values::generics::grid::{TrackListValue, TrackSize};
use crate::values::generics::image::GenericImage;
use crate::values::generics::rect::Rect;
use crate::Zero;
@ -56,11 +53,6 @@ impl From<nsStyleCoord_CalcValue> for LengthPercentage {
)
}
}
impl From<Angle> for CoordDataValue {
fn from(reference: Angle) -> Self {
CoordDataValue::Degree(reference.degrees())
}
}
impl nsStyleImage {
/// Set a given Servo `Image` value into this `nsStyleImage`.
@ -331,73 +323,6 @@ impl From<RulesMutateError> for nsresult {
}
}
impl TrackSize<LengthPercentage> {
/// Return TrackSize from given two nsStyleCoord
pub fn from_gecko_style_coords<T: CoordData>(gecko_min: &T, gecko_max: &T) -> Self {
use crate::gecko_bindings::structs::root::nsStyleUnit;
use crate::values::generics::grid::TrackBreadth;
if gecko_min.unit() == nsStyleUnit::eStyleUnit_None {
debug_assert!(
gecko_max.unit() == nsStyleUnit::eStyleUnit_Coord ||
gecko_max.unit() == nsStyleUnit::eStyleUnit_Percent ||
gecko_max.unit() == nsStyleUnit::eStyleUnit_Calc
);
return TrackSize::FitContent(
LengthPercentage::from_gecko_style_coord(gecko_max)
.expect("gecko_max could not convert to LengthPercentage"),
);
}
let min = TrackBreadth::from_gecko_style_coord(gecko_min)
.expect("gecko_min could not convert to TrackBreadth");
let max = TrackBreadth::from_gecko_style_coord(gecko_max)
.expect("gecko_max could not convert to TrackBreadth");
if min == max {
TrackSize::Breadth(max)
} else {
TrackSize::Minmax(min, max)
}
}
/// Save TrackSize to given gecko fields.
pub fn to_gecko_style_coords<T: CoordDataMut>(&self, gecko_min: &mut T, gecko_max: &mut T) {
match *self {
TrackSize::FitContent(ref lop) => {
// Gecko sets min value to None and max value to the actual value in fit-content
// https://searchfox.org/mozilla-central/rev/c05d9d61188d32b8/layout/style/nsRuleNode.cpp#7910
gecko_min.set_value(CoordDataValue::None);
lop.to_gecko_style_coord(gecko_max);
},
TrackSize::Breadth(ref breadth) => {
// Set the value to both fields if there's one breadth value
// https://searchfox.org/mozilla-central/rev/c05d9d61188d32b8/layout/style/nsRuleNode.cpp#7919
breadth.to_gecko_style_coord(gecko_min);
breadth.to_gecko_style_coord(gecko_max);
},
TrackSize::Minmax(ref min, ref max) => {
min.to_gecko_style_coord(gecko_min);
max.to_gecko_style_coord(gecko_max);
},
}
}
}
impl TrackListValue<LengthPercentage, Integer> {
/// Return TrackSize from given two nsStyleCoord
pub fn from_gecko_style_coords<T: CoordData>(gecko_min: &T, gecko_max: &T) -> Self {
TrackListValue::TrackSize(TrackSize::from_gecko_style_coords(gecko_min, gecko_max))
}
/// Save TrackSize to given gecko fields.
pub fn to_gecko_style_coords<T: CoordDataMut>(&self, gecko_min: &mut T, gecko_max: &mut T) {
match *self {
TrackListValue::TrackSize(ref size) => size.to_gecko_style_coords(gecko_min, gecko_max),
_ => unreachable!("Should only transform from track-size computed values"),
}
}
}
impl<T> Rect<T>
where
T: GeckoStyleCoordConvertible,

52
components/style/gecko/values.rs
View file

@ -7,12 +7,10 @@
//! Different kind of helpers to interact with Gecko values.
use crate::counter_style::{Symbol, Symbols};
use crate::gecko_bindings::structs::StyleGridTrackBreadth;
use crate::gecko_bindings::structs::{nsStyleCoord, CounterStylePtr};
use crate::gecko_bindings::sugar::ns_style_coord::{CoordData, CoordDataMut, CoordDataValue};
use crate::values::computed::{Angle, Length, LengthPercentage};
use crate::values::computed::{Length, LengthPercentage};
use crate::values::computed::{Number, NumberOrPercentage, Percentage};
use crate::values::generics::grid::{TrackBreadth, TrackKeyword};
use crate::values::generics::length::LengthPercentageOrAuto;
use crate::values::generics::{CounterStyleOrNone, NonNegative};
use crate::values::Either;
@ -154,41 +152,6 @@ where
}
}
impl<L: GeckoStyleCoordConvertible> GeckoStyleCoordConvertible for TrackBreadth<L> {
fn to_gecko_style_coord<T: CoordDataMut>(&self, coord: &mut T) {
match *self {
TrackBreadth::Breadth(ref lp) => lp.to_gecko_style_coord(coord),
TrackBreadth::Fr(fr) => coord.set_value(CoordDataValue::FlexFraction(fr)),
TrackBreadth::Keyword(TrackKeyword::Auto) => coord.set_value(CoordDataValue::Auto),
TrackBreadth::Keyword(TrackKeyword::MinContent) => coord.set_value(
CoordDataValue::Enumerated(StyleGridTrackBreadth::MinContent as u32),
),
TrackBreadth::Keyword(TrackKeyword::MaxContent) => coord.set_value(
CoordDataValue::Enumerated(StyleGridTrackBreadth::MaxContent as u32),
),
}
}
fn from_gecko_style_coord<T: CoordData>(coord: &T) -> Option<Self> {
L::from_gecko_style_coord(coord)
.map(TrackBreadth::Breadth)
.or_else(|| match coord.as_value() {
CoordDataValue::Enumerated(v) => {
if v == StyleGridTrackBreadth::MinContent as u32 {
Some(TrackBreadth::Keyword(TrackKeyword::MinContent))
} else if v == StyleGridTrackBreadth::MaxContent as u32 {
Some(TrackBreadth::Keyword(TrackKeyword::MaxContent))
} else {
None
}
},
CoordDataValue::FlexFraction(fr) => Some(TrackBreadth::Fr(fr)),
CoordDataValue::Auto => Some(TrackBreadth::Keyword(TrackKeyword::Auto)),
_ => L::from_gecko_style_coord(coord).map(TrackBreadth::Breadth),
})
}
}
impl<T: GeckoStyleCoordConvertible> GeckoStyleCoordConvertible for Option<T> {
fn to_gecko_style_coord<U: CoordDataMut>(&self, coord: &mut U) {
if let Some(ref me) = *self {
@ -203,19 +166,6 @@ impl<T: GeckoStyleCoordConvertible> GeckoStyleCoordConvertible for Option<T> {
}
}
impl GeckoStyleCoordConvertible for Angle {
fn to_gecko_style_coord<T: CoordDataMut>(&self, coord: &mut T) {
coord.set_value(CoordDataValue::from(*self));
}
fn from_gecko_style_coord<T: CoordData>(coord: &T) -> Option<Self> {
match coord.as_value() {
CoordDataValue::Degree(val) => Some(Angle::from_degrees(val)),
_ => None,
}
}
}
/// Convert a given RGBA value to `nscolor`.
pub fn convert_rgba_to_nscolor(rgba: &RGBA) -> u32 {
((rgba.alpha as u32) << 24) |