layout: Implement ordered lists, CSS counters, and quotes per CSS 2.1

§ 12.3-12.5.

Only simple alphabetic and numeric counter styles are supported. (This
is most of them though.)

Although this PR adds a sequential pass to layout, I verified that on
pages that contain a reasonable number of ordered lists (Reddit
`/r/rust`), the time spent in generated content resolution is dwarfed by
the time spent in the parallelizable parts of layout. So I don't expect
this to negatively affect our parallelism expect perhaps in pathological
cases.
This commit is contained in:
Patrick Walton 2015-03-05 12:37:37 -08:00
parent 2df4dd9e09
commit f9cdd05d58
39 changed files with 1704 additions and 537 deletions

View file

@ -8,7 +8,6 @@
use block::{BlockFlow, ISizeAndMarginsComputer, MarginsMayCollapseFlag};
use block::{ISizeConstraintInput, ISizeConstraintSolution};
use construct::FlowConstructor;
use context::LayoutContext;
use floats::FloatKind;
use flow::{self, Flow, FlowClass, IMPACTED_BY_LEFT_FLOATS, IMPACTED_BY_RIGHT_FLOATS};
@ -55,12 +54,12 @@ impl TableFlow {
fragment: Fragment)
-> TableFlow {
let mut block_flow = BlockFlow::from_node_and_fragment(node, fragment);
let table_layout = if block_flow.fragment().style().get_table().table_layout ==
table_layout::T::fixed {
TableLayout::Fixed
} else {
TableLayout::Auto
};
let table_layout =
if block_flow.fragment().style().get_table().table_layout == table_layout::T::fixed {
TableLayout::Fixed
} else {
TableLayout::Auto
};
TableFlow {
block_flow: block_flow,
column_intrinsic_inline_sizes: Vec::new(),
@ -69,35 +68,17 @@ impl TableFlow {
}
}
pub fn from_node(constructor: &mut FlowConstructor,
node: &ThreadSafeLayoutNode)
-> TableFlow {
let mut block_flow = BlockFlow::from_node(constructor, node);
let table_layout = if block_flow.fragment().style().get_table().table_layout ==
table_layout::T::fixed {
TableLayout::Fixed
} else {
TableLayout::Auto
};
TableFlow {
block_flow: block_flow,
column_intrinsic_inline_sizes: Vec::new(),
column_computed_inline_sizes: Vec::new(),
table_layout: table_layout
}
}
pub fn float_from_node(constructor: &mut FlowConstructor,
node: &ThreadSafeLayoutNode,
float_kind: FloatKind)
-> TableFlow {
let mut block_flow = BlockFlow::float_from_node(constructor, node, float_kind);
let table_layout = if block_flow.fragment().style().get_table().table_layout ==
table_layout::T::fixed {
TableLayout::Fixed
} else {
TableLayout::Auto
};
pub fn float_from_node_and_fragment(node: &ThreadSafeLayoutNode,
fragment: Fragment,
float_kind: FloatKind)
-> TableFlow {
let mut block_flow = BlockFlow::float_from_node_and_fragment(node, fragment, float_kind);
let table_layout =
if block_flow.fragment().style().get_table().table_layout == table_layout::T::fixed {
TableLayout::Fixed
} else {
TableLayout::Auto
};
TableFlow {
block_flow: block_flow,
column_intrinsic_inline_sizes: Vec::new(),
@ -396,6 +377,10 @@ impl Flow for TableFlow {
stacking_context_position: &Point2D<Au>) {
self.block_flow.iterate_through_fragment_border_boxes(iterator, stacking_context_position)
}
fn mutate_fragments(&mut self, mutator: &mut FnMut(&mut Fragment)) {
self.block_flow.mutate_fragments(mutator)
}
}
impl fmt::Debug for TableFlow {