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layout: Make inline absolute hypothetical boxes not clip their contents.

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Improves the logo on ebay.com.
This commit is contained in:
Patrick Walton 2015-08-18 16:56:36 -07:00
parent 19d466b062
commit c328c38804
5 changed files with 49 additions and 1 deletions
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8
components/layout/construct.rs
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@ -978,7 +978,13 @@ impl<'a> FlowConstructor<'a> {
let fragment_info = SpecificFragmentInfo::InlineAbsoluteHypothetical( let fragment_info = SpecificFragmentInfo::InlineAbsoluteHypothetical(
InlineAbsoluteHypotheticalFragmentInfo::new(block_flow)); InlineAbsoluteHypotheticalFragmentInfo::new(block_flow));
let fragment = Fragment::new(node, fragment_info); let mut style = node.style().clone();
properties::modify_style_for_inline_absolute_hypothetical_fragment(&mut style);
let fragment = Fragment::from_opaque_node_and_style(node.opaque(),
PseudoElementType::Normal,
style,
node.restyle_damage(),
fragment_info);
let mut fragment_accumulator = InlineFragmentsAccumulator::from_inline_node(node); let mut fragment_accumulator = InlineFragmentsAccumulator::from_inline_node(node);
fragment_accumulator.fragments.fragments.push_back(fragment); fragment_accumulator.fragments.fragments.push_back(fragment);

10
components/style/properties.mako.rs
View file

@ -6533,6 +6533,16 @@ pub fn modify_style_for_input_text(style: &mut Arc<ComputedValues>) {
margin_style.margin_left = computed::LengthOrPercentageOrAuto::Length(Au(0)); margin_style.margin_left = computed::LengthOrPercentageOrAuto::Length(Au(0));
} }
/// Adjusts the `clip` property so that an inline absolute hypothetical fragment doesn't clip its
/// children.
pub fn modify_style_for_inline_absolute_hypothetical_fragment(style: &mut Arc<ComputedValues>) {
if style.get_effects().clip.0.is_some() {
let mut style = Arc::make_unique(style);
let effects_style = Arc::make_unique(&mut style.effects);
effects_style.clip.0 = None
}
}
pub fn is_supported_property(property: &str) -> bool { pub fn is_supported_property(property: &str) -> bool {
match_ignore_ascii_case! { property, match_ignore_ascii_case! { property,
% for property in SHORTHANDS + LONGHANDS[:-1]: % for property in SHORTHANDS + LONGHANDS[:-1]:

1
tests/ref/basic.list
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@ -146,6 +146,7 @@ experimental == iframe/size_attributes_vertical_writing_mode.html iframe/size_at
== img_width_attribute_intrinsic_width_a.html img_width_attribute_intrinsic_width_ref.html == img_width_attribute_intrinsic_width_a.html img_width_attribute_intrinsic_width_ref.html
== incremental_float_a.html incremental_float_ref.html == incremental_float_a.html incremental_float_ref.html
== incremental_inline_layout_a.html incremental_inline_layout_ref.html == incremental_inline_layout_a.html incremental_inline_layout_ref.html
== inline_absolute_hypothetical_clip_a.html inline_absolute_hypothetical_clip_ref.html
!= inline_background_a.html inline_background_ref.html != inline_background_a.html inline_background_ref.html
== inline_block_baseline_a.html inline_block_baseline_ref.html == inline_block_baseline_a.html inline_block_baseline_ref.html
== inline_block_block_direction_margins_a.html inline_block_block_direction_margins_ref.html == inline_block_block_direction_margins_a.html inline_block_block_direction_margins_ref.html

15
tests/ref/inline_absolute_hypothetical_clip_a.html Normal file
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@ -0,0 +1,15 @@
<!DOCTYPE html>
<style>
body {
margin: 16px;
}
#a {
position: relative;
}
#b {
clip: rect(47px, 118px, 95px, 0);
position: absolute;
}
</style>
<a href="http://bogus" id=a><img id=b width=250 src=400x400_green.png>

16
tests/ref/inline_absolute_hypothetical_clip_ref.html Normal file
View file

@ -0,0 +1,16 @@
<!DOCTYPE html>
<style>
html, body {
margin: 0;
}
section {
position: absolute;
background: lime;
top: 63px;
width: 118px;
height: 48px;
left: 16px;
}
</style>
<section></section>