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Eliminate HAS_CHANGED in favor of explicit RestyleDamage.

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This commit is contained in:
Bobby Holley 2016-11-14 15:32:35 -08:00
parent f1043f6305
commit b31ed2298c
5 changed files with 18 additions and 36 deletions
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12
components/script/dom/node.rs
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@ -143,8 +143,6 @@ bitflags! {
pub flags NodeFlags: u8 {
#[doc = "Specifies whether this node is in a document."]
const IS_IN_DOC = 0x01,
#[doc = "Specifies whether this node _must_ be reflowed regardless of style differences."]
const HAS_CHANGED = 0x02,
#[doc = "Specifies whether this node needs style recalc on next reflow."]
const IS_DIRTY = 0x04,
#[doc = "Specifies whether this node has descendants (inclusive of itself) which \
@ -169,7 +167,7 @@ bitflags! {
impl NodeFlags {
pub fn new() -> NodeFlags {
HAS_CHANGED | IS_DIRTY | HAS_DIRTY_DESCENDANTS
IS_DIRTY | HAS_DIRTY_DESCENDANTS
}
}
@ -422,14 +420,6 @@ impl Node {
self.flags.set(flags);
}
pub fn has_changed(&self) -> bool {
self.get_flag(HAS_CHANGED)
}
pub fn set_has_changed(&self, state: bool) {
self.set_flag(HAS_CHANGED, state)
}
pub fn is_dirty(&self) -> bool {
self.get_flag(IS_DIRTY)
}

19
components/script/layout_wrapper.rs
View file

@ -36,7 +36,7 @@ use dom::bindings::js::LayoutJS;
use dom::characterdata::LayoutCharacterDataHelpers;
use dom::document::{Document, LayoutDocumentHelpers, PendingRestyle};
use dom::element::{Element, LayoutElementHelpers, RawLayoutElementHelpers};
use dom::node::{CAN_BE_FRAGMENTED, DIRTY_ON_VIEWPORT_SIZE_CHANGE, HAS_CHANGED, HAS_DIRTY_DESCENDANTS, IS_DIRTY};
use dom::node::{CAN_BE_FRAGMENTED, DIRTY_ON_VIEWPORT_SIZE_CHANGE, HAS_DIRTY_DESCENDANTS, IS_DIRTY};
use dom::node::{LayoutNodeHelpers, Node};
use dom::text::Text;
use gfx_traits::ByteIndex;
@ -62,7 +62,7 @@ use style::computed_values::display;
use style::context::SharedStyleContext;
use style::data::ElementData;
use style::dom::{LayoutIterator, NodeInfo, OpaqueNode, PresentationalHintsSynthetizer, TElement, TNode};
use style::dom::{TRestyleDamage, UnsafeNode};
use style::dom::UnsafeNode;
use style::element_state::*;
use style::properties::{ComputedValues, PropertyDeclarationBlock};
use style::selector_impl::{NonTSPseudoClass, PseudoElement, RestyleDamage, ServoSelectorImpl};
@ -259,12 +259,7 @@ impl<'ln> LayoutNode for ServoLayoutNode<'ln> {
self.get_jsmanaged().take_style_and_layout_data()
}
fn has_changed(&self) -> bool {
unsafe { self.node.get_flag(HAS_CHANGED) }
}
unsafe fn clear_dirty_bits(&self) {
self.node.set_flag(HAS_CHANGED, false);
self.node.set_flag(IS_DIRTY, false);
self.node.set_flag(HAS_DIRTY_DESCENDANTS, false);
}
@ -335,8 +330,8 @@ impl<'ln> ServoLayoutNode<'ln> {
}
fn debug_str(self) -> String {
format!("{:?}: changed={} dirty={} dirty_descendants={}",
self.script_type_id(), self.has_changed(),
format!("{:?}: dirty={} dirty_descendants={}",
self.script_type_id(),
self.as_element().map_or(false, |el| el.deprecated_dirty_bit_is_set()),
self.as_element().map_or(false, |el| el.has_dirty_descendants()))
}
@ -453,7 +448,7 @@ impl<'le> TElement for ServoLayoutElement<'le> {
}
fn set_restyle_damage(self, damage: RestyleDamage) {
self.get_partial_layout_data().unwrap().borrow_mut().restyle_damage = damage;
self.get_partial_layout_data().unwrap().borrow_mut().restyle_damage |= damage;
}
#[inline]
@ -879,9 +874,7 @@ impl<'ln> ThreadSafeLayoutNode for ServoThreadSafeLayoutNode<'ln> {
}
fn restyle_damage(self) -> RestyleDamage {
if self.node.has_changed() {
RestyleDamage::rebuild_and_reflow()
} else if self.is_text_node() {
if self.is_text_node() {
let parent = self.node.parent_node().unwrap().as_element().unwrap();
let parent_data = parent.get_partial_layout_data().unwrap().borrow();
parent_data.restyle_damage