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Bug 1374233 - Part 2: Add NonNegativeAu.

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Add values::computed::NonNegativeAu, so BorderSideWith could be computed
to this non-negative Au, for the following properties:
1. outline-width
2. border-{*}-width
3. column-rule-width
4. -webkit-text-stroke-width

MozReview-Commit-ID: ASHaB2F7VtM
This commit is contained in:
Boris Chiou 2017-07-20 13:11:37 +08:00
parent 4cc97746f2
commit 191c2a282b
16 changed files with 113 additions and 64 deletions
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27
components/style/properties/properties.mako.rs
View file

@ -10,13 +10,13 @@
<%namespace name="helpers" file="/helpers.mako.rs" />
#[cfg(feature = "servo")] use app_units::Au;
use servo_arc::{Arc, UniqueArc};
use std::borrow::Cow;
use std::collections::HashSet;
use std::{fmt, mem, ops};
#[cfg(feature = "gecko")] use std::ptr;
use app_units::Au;
#[cfg(feature = "servo")] use cssparser::RGBA;
use cssparser::{Parser, TokenSerializationType, serialize_identifier};
use cssparser::ParserInput;
@ -43,6 +43,7 @@ use stylesheets::{CssRuleType, MallocSizeOf, MallocSizeOfFn, Origin, UrlExtraDat
#[cfg(feature = "servo")] use values::Either;
use values::generics::text::LineHeight;
use values::computed;
use values::computed::NonNegativeAu;
use cascade_info::CascadeInfo;
use rule_tree::{CascadeLevel, StrongRuleNode};
use self::computed_value_flags::ComputedValueFlags;
@ -1752,7 +1753,7 @@ pub mod style_structs {
/// Whether the border-${side} property has nonzero width.
#[allow(non_snake_case)]
pub fn border_${side}_has_nonzero_width(&self) -> bool {
self.border_${side}_width != ::app_units::Au(0)
self.border_${side}_width != NonNegativeAu::zero()
}
% endfor
% elif style_struct.name == "Font":
@ -1790,7 +1791,7 @@ pub mod style_structs {
/// Whether the outline-width property is non-zero.
#[inline]
pub fn outline_has_nonzero_width(&self) -> bool {
self.outline_width != ::app_units::Au(0)
self.outline_width != NonNegativeAu::zero()
}
% elif style_struct.name == "Text":
/// Whether the text decoration has an underline.
@ -2202,10 +2203,10 @@ impl ComputedValuesInner {
pub fn border_width_for_writing_mode(&self, writing_mode: WritingMode) -> LogicalMargin<Au> {
let border_style = self.get_border();
LogicalMargin::from_physical(writing_mode, SideOffsets2D::new(
border_style.border_top_width,
border_style.border_right_width,
border_style.border_bottom_width,
border_style.border_left_width,
border_style.border_top_width.0,
border_style.border_right_width.0,
border_style.border_bottom_width.0,
border_style.border_left_width.0,
))
}
@ -3360,7 +3361,7 @@ pub fn adjust_border_width(style: &mut StyleBuilder) {
// Like calling to_computed_value, which wouldn't type check.
if style.get_border().clone_border_${side}_style().none_or_hidden() &&
style.get_border().border_${side}_has_nonzero_width() {
style.set_border_${side}_width(Au(0));
style.set_border_${side}_width(NonNegativeAu::zero());
}
% endfor
}
@ -3384,7 +3385,7 @@ pub fn modify_border_style_for_inline_sides(style: &mut Arc<ComputedValues>,
PhysicalSide::Top => (border.border_top_width, border.border_top_style),
PhysicalSide::Bottom => (border.border_bottom_width, border.border_bottom_style),
};
if current_style == (Au(0), BorderStyle::none) {
if current_style == (NonNegativeAu::zero(), BorderStyle::none) {
return;
}
}
@ -3392,19 +3393,19 @@ pub fn modify_border_style_for_inline_sides(style: &mut Arc<ComputedValues>,
let border = Arc::make_mut(&mut style.border);
match side {
PhysicalSide::Left => {
border.border_left_width = Au(0);
border.border_left_width = NonNegativeAu::zero();
border.border_left_style = BorderStyle::none;
}
PhysicalSide::Right => {
border.border_right_width = Au(0);
border.border_right_width = NonNegativeAu::zero();
border.border_right_style = BorderStyle::none;
}
PhysicalSide::Bottom => {
border.border_bottom_width = Au(0);
border.border_bottom_width = NonNegativeAu::zero();
border.border_bottom_style = BorderStyle::none;
}
PhysicalSide::Top => {
border.border_top_width = Au(0);
border.border_top_width = NonNegativeAu::zero();
border.border_top_style = BorderStyle::none;
}
}