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Backed out changeset e64e659c077d: servo PR #18809 and revendor for reftest failures, e.g. in layout/reftests/bugs/392435-1.html. r=backout on a CLOSED TREE

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Backs out https://github.com/servo/servo/pull/18809
This commit is contained in:
Gecko Backout 2017-10-19 21:26:51 +00:00 • committed by moz-servo-sync
parent fe16c1d5c3
commit 11c64178d8
142 changed files with 1635 additions and 1685 deletions
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127
components/layout/fragment.rs
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@ -19,8 +19,8 @@ use gfx::display_list::{BLUR_INFLATION_FACTOR, OpaqueNode};
use gfx::text::glyph::ByteIndex;
use gfx::text::text_run::{TextRun, TextRunSlice};
use gfx_traits::StackingContextId;
use inline::{InlineFragmentNodeFlags, InlineFragmentContext, InlineFragmentNodeInfo};
use inline::{InlineMetrics, LineMetrics};
use inline::{FIRST_FRAGMENT_OF_ELEMENT, InlineFragmentContext, InlineFragmentNodeInfo};
use inline::{InlineMetrics, LAST_FRAGMENT_OF_ELEMENT, LineMetrics};
use ipc_channel::ipc::IpcSender;
#[cfg(debug_assertions)]
use layout_debug;
@ -48,7 +48,7 @@ use style::logical_geometry::{Direction, LogicalMargin, LogicalRect, LogicalSize
use style::properties::ComputedValues;
use style::properties::longhands::transform::computed_value::T as TransformList;
use style::selector_parser::RestyleDamage;
use style::servo::restyle_damage::ServoRestyleDamage;
use style::servo::restyle_damage::RECONSTRUCT_FLOW;
use style::str::char_is_whitespace;
use style::values::{self, Either, Auto};
use style::values::computed::{Length, LengthOrPercentage, LengthOrPercentageOrAuto};
@ -533,13 +533,13 @@ pub struct ScannedTextFragmentInfo {
}
bitflags! {
pub struct ScannedTextFlags: u8 {
pub flags ScannedTextFlags: u8 {
/// Whether a line break is required after this fragment if wrapping on newlines (e.g. if
/// `white-space: pre` is in effect).
const REQUIRES_LINE_BREAK_AFTERWARD_IF_WRAPPING_ON_NEWLINES = 0x01;
const REQUIRES_LINE_BREAK_AFTERWARD_IF_WRAPPING_ON_NEWLINES = 0x01,
/// Is this fragment selected?
const SELECTED = 0x02;
const SELECTED = 0x02,
}
}
@ -566,11 +566,11 @@ impl ScannedTextFragmentInfo {
}
pub fn requires_line_break_afterward_if_wrapping_on_newlines(&self) -> bool {
self.flags.contains(ScannedTextFlags::REQUIRES_LINE_BREAK_AFTERWARD_IF_WRAPPING_ON_NEWLINES)
self.flags.contains(REQUIRES_LINE_BREAK_AFTERWARD_IF_WRAPPING_ON_NEWLINES)
}
pub fn selected(&self) -> bool {
self.flags.contains(ScannedTextFlags::SELECTED)
self.flags.contains(SELECTED)
}
}
@ -671,7 +671,7 @@ impl Fragment {
let writing_mode = style.writing_mode;
let mut restyle_damage = node.restyle_damage();
restyle_damage.remove(ServoRestyleDamage::RECONSTRUCT_FLOW);
restyle_damage.remove(RECONSTRUCT_FLOW);
Fragment {
node: node.opaque(),
@ -700,7 +700,7 @@ impl Fragment {
-> Fragment {
let writing_mode = style.writing_mode;
restyle_damage.remove(ServoRestyleDamage::RECONSTRUCT_FLOW);
restyle_damage.remove(RECONSTRUCT_FLOW);
Fragment {
node: node,
@ -753,7 +753,7 @@ impl Fragment {
size);
let mut restyle_damage = RestyleDamage::rebuild_and_reflow();
restyle_damage.remove(ServoRestyleDamage::RECONSTRUCT_FLOW);
restyle_damage.remove(RECONSTRUCT_FLOW);
Fragment {
node: self.node,
@ -818,7 +818,7 @@ impl Fragment {
});
debug_assert!(ellipsis_fragments.len() == 1);
ellipsis_fragment = ellipsis_fragments.fragments.into_iter().next().unwrap();
ellipsis_fragment.flags |= FragmentFlags::IS_ELLIPSIS;
ellipsis_fragment.flags |= IS_ELLIPSIS;
ellipsis_fragment
}
@ -858,36 +858,35 @@ impl Fragment {
QuantitiesIncludedInIntrinsicInlineSizes::all()
}
SpecificFragmentInfo::Table => {
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED |
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_PADDING |
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED |
INTRINSIC_INLINE_SIZE_INCLUDES_PADDING |
INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
}
SpecificFragmentInfo::TableCell => {
let base_quantities = QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_PADDING |
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED;
let base_quantities = INTRINSIC_INLINE_SIZE_INCLUDES_PADDING |
INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED;
if self.style.get_inheritedtable().border_collapse ==
border_collapse::T::separate {
base_quantities | QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
base_quantities | INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
} else {
base_quantities
}
}
SpecificFragmentInfo::TableWrapper => {
let base_quantities = QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_MARGINS |
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED;
let base_quantities = INTRINSIC_INLINE_SIZE_INCLUDES_MARGINS |
INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED;
if self.style.get_inheritedtable().border_collapse ==
border_collapse::T::separate {
base_quantities | QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
base_quantities | INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
} else {
base_quantities
}
}
SpecificFragmentInfo::TableRow => {
let base_quantities =
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED;
let base_quantities = INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED;
if self.style.get_inheritedtable().border_collapse ==
border_collapse::T::separate {
base_quantities | QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
base_quantities | INTRINSIC_INLINE_SIZE_INCLUDES_BORDER
} else {
base_quantities
}
@ -915,8 +914,7 @@ impl Fragment {
// FIXME(pcwalton): Percentages should be relative to any definite size per CSS-SIZING.
// This will likely need to be done by pushing down definite sizes during selector
// cascading.
let margin = if flags.contains(
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_MARGINS) {
let margin = if flags.contains(INTRINSIC_INLINE_SIZE_INCLUDES_MARGINS) {
let margin = style.logical_margin();
(MaybeAuto::from_style(margin.inline_start, Au(0)).specified_or_zero() +
MaybeAuto::from_style(margin.inline_end, Au(0)).specified_or_zero())
@ -927,8 +925,7 @@ impl Fragment {
// FIXME(pcwalton): Percentages should be relative to any definite size per CSS-SIZING.
// This will likely need to be done by pushing down definite sizes during selector
// cascading.
let padding = if flags.contains(
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_PADDING) {
let padding = if flags.contains(INTRINSIC_INLINE_SIZE_INCLUDES_PADDING) {
let padding = style.logical_padding();
(padding.inline_start.to_used_value(Au(0)) +
padding.inline_end.to_used_value(Au(0)))
@ -936,8 +933,7 @@ impl Fragment {
Au(0)
};
let border = if flags.contains(
QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_BORDER) {
let border = if flags.contains(INTRINSIC_INLINE_SIZE_INCLUDES_BORDER) {
self.border_width().inline_start_end()
} else {
Au(0)
@ -956,7 +952,7 @@ impl Fragment {
let (border_padding, margin) = self.surrounding_intrinsic_inline_size();
let mut specified = Au(0);
if flags.contains(QuantitiesIncludedInIntrinsicInlineSizes::INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED) {
if flags.contains(INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED) {
specified = MaybeAuto::from_style(style.content_inline_size(),
Au(0)).specified_or_zero();
specified = max(style.min_inline_size().to_used_value(Au(0)), specified);
@ -1207,10 +1203,10 @@ impl Fragment {
inline_fragment_context.nodes.iter().fold(style_border_width, |accumulator, node| {
let mut this_border_width =
node.style.border_width_for_writing_mode(writing_mode);
if !node.flags.contains(InlineFragmentNodeFlags::FIRST_FRAGMENT_OF_ELEMENT) {
if !node.flags.contains(FIRST_FRAGMENT_OF_ELEMENT) {
this_border_width.inline_start = Au(0)
}
if !node.flags.contains(InlineFragmentNodeFlags::LAST_FRAGMENT_OF_ELEMENT) {
if !node.flags.contains(LAST_FRAGMENT_OF_ELEMENT) {
this_border_width.inline_end = Au(0)
}
accumulator + this_border_width
@ -1264,15 +1260,13 @@ impl Fragment {
if let Some(ref inline_context) = self.inline_context {
for node in &inline_context.nodes {
let margin = node.style.logical_margin();
let this_inline_start_margin = if !node.flags.contains(
InlineFragmentNodeFlags::FIRST_FRAGMENT_OF_ELEMENT) {
let this_inline_start_margin = if !node.flags.contains(FIRST_FRAGMENT_OF_ELEMENT) {
Au(0)
} else {
MaybeAuto::from_style(margin.inline_start,
containing_block_inline_size).specified_or_zero()
};
let this_inline_end_margin = if!node.flags.contains(
InlineFragmentNodeFlags::LAST_FRAGMENT_OF_ELEMENT) {
let this_inline_end_margin = if !node.flags.contains(LAST_FRAGMENT_OF_ELEMENT) {
Au(0)
} else {
MaybeAuto::from_style(margin.inline_end,
@ -1345,10 +1339,10 @@ impl Fragment {
let zero_padding = LogicalMargin::zero(writing_mode);
inline_fragment_context.nodes.iter().fold(zero_padding, |accumulator, node| {
let mut padding = model::padding_from_style(&*node.style, Au(0), writing_mode);
if !node.flags.contains(InlineFragmentNodeFlags::FIRST_FRAGMENT_OF_ELEMENT) {
if !node.flags.contains(FIRST_FRAGMENT_OF_ELEMENT) {
padding.inline_start = Au(0)
}
if !node.flags.contains(InlineFragmentNodeFlags::LAST_FRAGMENT_OF_ELEMENT) {
if !node.flags.contains(LAST_FRAGMENT_OF_ELEMENT) {
padding.inline_end = Au(0)
}
accumulator + padding
@ -1590,12 +1584,12 @@ impl Fragment {
let mut border_width = node.style.logical_border_width();
let mut padding = model::padding_from_style(&*node.style, Au(0), writing_mode);
let mut margin = model::specified_margin_from_style(&*node.style, writing_mode);
if !node.flags.contains(InlineFragmentNodeFlags::FIRST_FRAGMENT_OF_ELEMENT) {
if !node.flags.contains(FIRST_FRAGMENT_OF_ELEMENT) {
border_width.inline_start = Au(0);
padding.inline_start = Au(0);
margin.inline_start = Au(0);
}
if !node.flags.contains(InlineFragmentNodeFlags::LAST_FRAGMENT_OF_ELEMENT) {
if !node.flags.contains(LAST_FRAGMENT_OF_ELEMENT) {
border_width.inline_end = Au(0);
padding.inline_end = Au(0);
margin.inline_end = Au(0);
@ -1653,9 +1647,9 @@ impl Fragment {
let mut flags = SplitOptions::empty();
if starts_line {
flags.insert(SplitOptions::STARTS_LINE);
flags.insert(STARTS_LINE);
if self.style().get_inheritedtext().overflow_wrap == overflow_wrap::T::break_word {
flags.insert(SplitOptions::RETRY_AT_CHARACTER_BOUNDARIES)
flags.insert(RETRY_AT_CHARACTER_BOUNDARIES)
}
}
@ -1673,7 +1667,7 @@ impl Fragment {
// Break at character boundaries.
let character_breaking_strategy =
text_fragment_info.run.character_slices_in_range(&text_fragment_info.range);
flags.remove(SplitOptions::RETRY_AT_CHARACTER_BOUNDARIES);
flags.remove(RETRY_AT_CHARACTER_BOUNDARIES);
self.calculate_split_position_using_breaking_strategy(
character_breaking_strategy,
max_inline_size,
@ -1836,12 +1830,12 @@ impl Fragment {
if split_is_empty || overflowing {
// If we've been instructed to retry at character boundaries (probably via
// `overflow-wrap: break-word`), do so.
if flags.contains(SplitOptions::RETRY_AT_CHARACTER_BOUNDARIES) {
if flags.contains(RETRY_AT_CHARACTER_BOUNDARIES) {
let character_breaking_strategy =
text_fragment_info.run
.character_slices_in_range(&text_fragment_info.range);
let mut flags = flags;
flags.remove(SplitOptions::RETRY_AT_CHARACTER_BOUNDARIES);
flags.remove(RETRY_AT_CHARACTER_BOUNDARIES);
return self.calculate_split_position_using_breaking_strategy(
character_breaking_strategy,
max_inline_size,
@ -1850,7 +1844,7 @@ impl Fragment {
// We aren't at the start of the line, so don't overflow. Let inline layout wrap to
// the next line instead.
if !flags.contains(SplitOptions::STARTS_LINE) {
if !flags.contains(STARTS_LINE) {
return None
}
}
@ -1886,7 +1880,7 @@ impl Fragment {
this_info.range_end_including_stripped_whitespace =
other_info.range_end_including_stripped_whitespace;
if other_info.requires_line_break_afterward_if_wrapping_on_newlines() {
this_info.flags.insert(ScannedTextFlags::REQUIRES_LINE_BREAK_AFTERWARD_IF_WRAPPING_ON_NEWLINES);
this_info.flags.insert(REQUIRES_LINE_BREAK_AFTERWARD_IF_WRAPPING_ON_NEWLINES);
}
if other_info.insertion_point.is_some() {
this_info.insertion_point = other_info.insertion_point;
@ -2346,7 +2340,7 @@ impl Fragment {
// side, then we can't merge with the next fragment.
if let Some(ref inline_context) = self.inline_context {
for inline_context_node in inline_context.nodes.iter() {
if !inline_context_node.flags.contains(InlineFragmentNodeFlags::LAST_FRAGMENT_OF_ELEMENT) {
if !inline_context_node.flags.contains(LAST_FRAGMENT_OF_ELEMENT) {
continue
}
if inline_context_node.style.logical_margin().inline_end !=
@ -2367,7 +2361,7 @@ impl Fragment {
// preceding side, then it can't merge with us.
if let Some(ref inline_context) = other.inline_context {
for inline_context_node in inline_context.nodes.iter() {
if !inline_context_node.flags.contains(InlineFragmentNodeFlags::FIRST_FRAGMENT_OF_ELEMENT) {
if !inline_context_node.flags.contains(FIRST_FRAGMENT_OF_ELEMENT) {
continue
}
if inline_context_node.style.logical_margin().inline_start !=
@ -2813,15 +2807,14 @@ impl Fragment {
.zip(inline_context_of_next_fragment.nodes.iter().rev())
{
if !inline_context_node_from_next_fragment.flags.contains(
InlineFragmentNodeFlags::LAST_FRAGMENT_OF_ELEMENT) {
LAST_FRAGMENT_OF_ELEMENT) {
continue
}
if inline_context_node_from_next_fragment.address !=
inline_context_node_from_this_fragment.address {
continue
}
inline_context_node_from_this_fragment.flags.insert(
InlineFragmentNodeFlags::LAST_FRAGMENT_OF_ELEMENT);
inline_context_node_from_this_fragment.flags.insert(LAST_FRAGMENT_OF_ELEMENT);
}
}
}
@ -2836,7 +2829,7 @@ impl Fragment {
inline_context_of_this_fragment.nodes.iter_mut().rev())
{
if !inline_context_node_from_prev_fragment.flags.contains(
InlineFragmentNodeFlags::FIRST_FRAGMENT_OF_ELEMENT) {
FIRST_FRAGMENT_OF_ELEMENT) {
continue
}
if inline_context_node_from_prev_fragment.address !=
@ -2844,7 +2837,7 @@ impl Fragment {
continue
}
inline_context_node_from_this_fragment.flags.insert(
InlineFragmentNodeFlags::FIRST_FRAGMENT_OF_ELEMENT);
FIRST_FRAGMENT_OF_ELEMENT);
}
}
}
@ -2985,23 +2978,23 @@ impl fmt::Debug for Fragment {
}
bitflags! {
struct QuantitiesIncludedInIntrinsicInlineSizes: u8 {
const INTRINSIC_INLINE_SIZE_INCLUDES_MARGINS = 0x01;
const INTRINSIC_INLINE_SIZE_INCLUDES_PADDING = 0x02;
const INTRINSIC_INLINE_SIZE_INCLUDES_BORDER = 0x04;
const INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED = 0x08;
flags QuantitiesIncludedInIntrinsicInlineSizes: u8 {
const INTRINSIC_INLINE_SIZE_INCLUDES_MARGINS = 0x01,
const INTRINSIC_INLINE_SIZE_INCLUDES_PADDING = 0x02,
const INTRINSIC_INLINE_SIZE_INCLUDES_BORDER = 0x04,
const INTRINSIC_INLINE_SIZE_INCLUDES_SPECIFIED = 0x08,
}
}
bitflags! {
// Various flags we can use when splitting fragments. See
// `calculate_split_position_using_breaking_strategy()`.
struct SplitOptions: u8 {
flags SplitOptions: u8 {
#[doc = "True if this is the first fragment on the line."]
const STARTS_LINE = 0x01;
const STARTS_LINE = 0x01,
#[doc = "True if we should attempt to split at character boundaries if this split fails. \
This is used to implement `overflow-wrap: break-word`."]
const RETRY_AT_CHARACTER_BOUNDARIES = 0x02;
const RETRY_AT_CHARACTER_BOUNDARIES = 0x02,
}
}
@ -3117,14 +3110,14 @@ impl Overflow {
}
bitflags! {
pub struct FragmentFlags: u8 {
pub flags FragmentFlags: u8 {
// TODO(stshine): find a better name since these flags can also be used for grid item.
/// Whether this fragment represents a child in a row flex container.
const IS_INLINE_FLEX_ITEM = 0b0000_0001;
const IS_INLINE_FLEX_ITEM = 0b0000_0001,
/// Whether this fragment represents a child in a column flex container.
const IS_BLOCK_FLEX_ITEM = 0b0000_0010;
const IS_BLOCK_FLEX_ITEM = 0b0000_0010,
/// Whether this fragment represents the generated text from a text-overflow clip.
const IS_ELLIPSIS = 0b0000_0100;
const IS_ELLIPSIS = 0b0000_0100,
}
}