auto merge of #3640 : cgaebel/servo/incremental-flow-construction, r=pcwalton

This also hides the not-yet-working parts of incremental reflow behind a runtime
flag. As I get the failing reftests passing, I'll send pull requests for them one
by one.
This commit is contained in:
bors-servo 2014-10-14 16:51:30 -06:00
commit 56989b8dec
13 changed files with 310 additions and 82 deletions

View file

@ -14,6 +14,7 @@ use sync::Arc;
/// Node mixin providing `style` method that returns a `NodeStyle`
pub trait StyledNode {
fn style<'a>(&'a self) -> &'a Arc<ComputedValues>;
fn unstyle(self);
fn restyle_damage(self) -> RestyleDamage;
fn set_restyle_damage(self, damage: RestyleDamage);
}
@ -24,6 +25,10 @@ impl<'ln> StyledNode for ThreadSafeLayoutNode<'ln> {
self.get_css_select_results()
}
fn unstyle(self) {
self.remove_css_select_results()
}
fn restyle_damage(self) -> RestyleDamage {
self.get_restyle_damage()
}

View file

@ -13,6 +13,7 @@ use sync::Arc;
pub trait NodeUtil {
fn get_css_select_results<'a>(&'a self) -> &'a Arc<ComputedValues>;
fn have_css_select_results(&self) -> bool;
fn remove_css_select_results(self);
fn get_restyle_damage(self) -> RestyleDamage;
fn set_restyle_damage(self, damage: RestyleDamage);
@ -60,6 +61,20 @@ impl<'ln> NodeUtil for ThreadSafeLayoutNode<'ln> {
layout_data_ref.as_ref().unwrap().shared_data.style.is_some()
}
fn remove_css_select_results(self) {
let mut layout_data_ref = self.mutate_layout_data();
let layout_data = layout_data_ref.as_mut().expect("no layout data");
let style =
match self.get_pseudo_element_type() {
Before(_) => &mut layout_data.data.before_style,
After (_) => &mut layout_data.data.after_style,
Normal => &mut layout_data.shared_data.style,
};
*style = None;
}
/// Get the description of how to account for recent style changes.
/// This is a simple bitfield and fine to copy by value.
fn get_restyle_damage(self) -> RestyleDamage {