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layout: Take inline margins into account when determining the intrinsic

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sizes of fragments.

Avoids a needless wrapped line in the repository name on GitHub.
This commit is contained in:
Patrick Walton 2015-08-05 12:27:17 -07:00
parent b3d61878dc
commit fba0a8164d
5 changed files with 49 additions and 1 deletions
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4
components/layout/fragment.rs
View file

@ -1343,8 +1343,10 @@ impl Fragment {
let border_width = node.style.logical_border_width().inline_start_end(); let border_width = node.style.logical_border_width().inline_start_end();
let padding_inline_size = let padding_inline_size =
model::padding_from_style(&*node.style, Au(0)).inline_start_end(); model::padding_from_style(&*node.style, Au(0)).inline_start_end();
let margin_inline_size =
model::specified_margin_from_style(&*node.style).inline_start_end();
result.surrounding_size = result.surrounding_size + border_width + result.surrounding_size = result.surrounding_size + border_width +
padding_inline_size; padding_inline_size + margin_inline_size;
} }
} }
} }

15
components/layout/model.rs
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@ -297,6 +297,7 @@ impl IntrinsicISizes {
} }
/// The temporary result of the computation of intrinsic inline-sizes. /// The temporary result of the computation of intrinsic inline-sizes.
#[derive(Debug)]
pub struct IntrinsicISizesContribution { pub struct IntrinsicISizesContribution {
/// Intrinsic sizes for the content only (not counting borders, padding, or margins). /// Intrinsic sizes for the content only (not counting borders, padding, or margins).
pub content_intrinsic_sizes: IntrinsicISizes, pub content_intrinsic_sizes: IntrinsicISizes,
@ -430,6 +431,20 @@ pub fn padding_from_style(style: &ComputedValues, containing_block_inline_size:
specified(padding_style.padding_left, containing_block_inline_size))) specified(padding_style.padding_left, containing_block_inline_size)))
} }
/// Returns the explicitly-specified margin lengths from the given style. Percentage and auto
/// margins are returned as zero.
///
/// This is used when calculating intrinsic inline sizes.
#[inline]
pub fn specified_margin_from_style(style: &ComputedValues) -> LogicalMargin<Au> {
let margin_style = style.get_margin();
LogicalMargin::from_physical(style.writing_mode, SideOffsets2D::new(
MaybeAuto::from_style(margin_style.margin_top, Au(0)).specified_or_zero(),
MaybeAuto::from_style(margin_style.margin_right, Au(0)).specified_or_zero(),
MaybeAuto::from_style(margin_style.margin_bottom, Au(0)).specified_or_zero(),
MaybeAuto::from_style(margin_style.margin_left, Au(0)).specified_or_zero()))
}
pub trait ToGfxMatrix { pub trait ToGfxMatrix {
fn to_gfx_matrix(&self) -> Matrix4; fn to_gfx_matrix(&self) -> Matrix4;
} }

1
tests/ref/basic.list
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@ -162,6 +162,7 @@ experimental == iframe/size_attributes_vertical_writing_mode.html iframe/size_at
== inline_hypothetical_box_a.html inline_hypothetical_box_ref.html == inline_hypothetical_box_a.html inline_hypothetical_box_ref.html
== inline_margin_multiple_fragments_a.html inline_margin_multiple_fragments_ref.html == inline_margin_multiple_fragments_a.html inline_margin_multiple_fragments_ref.html
== inline_margins_a.html inline_margins_ref.html == inline_margins_a.html inline_margins_ref.html
== inline_margins_intrinsic_size_a.html inline_margins_intrinsic_size_ref.html
== inline_padding_a.html inline_padding_b.html == inline_padding_a.html inline_padding_b.html
# inline_text_align_a.html inline_text_align_b.html # inline_text_align_a.html inline_text_align_b.html
== inline_whitespace_a.html inline_whitespace_ref.html == inline_whitespace_a.html inline_whitespace_ref.html

15
tests/ref/inline_margins_intrinsic_size_a.html Normal file
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@ -0,0 +1,15 @@
<!DOCTYPE html>
<style>
span {
margin: 0 1em;
}
div {
float: left;
}
body {
margin: 0;
padding: 0;
}
</style>
<div>foo<span>/</span>bar</div>

15
tests/ref/inline_margins_intrinsic_size_ref.html Normal file
View file

@ -0,0 +1,15 @@
<!DOCTYPE html>
<style>
span {
padding: 0 1em;
}
div {
float: left;
}
body {
margin: 0;
padding: 0;
}
</style>
<div>foo<span>/</span>bar</div>