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Remove TDocument from the style and layout crates.

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The style system never actually does anything with the document. This allows us
to remove a bunch of stubbing on the Gecko side and streamline some things on
the Servo side in future patches.
This commit is contained in:
Bobby Holley 2016-11-14 12:05:17 -08:00
parent b7eb36fa84
commit dda2928386
6 changed files with 22 additions and 88 deletions
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4
components/layout/traversal.rs
View file

@ -10,7 +10,7 @@ use display_list_builder::DisplayListBuildState;
use flow::{self, PreorderFlowTraversal};
use flow::{CAN_BE_FRAGMENTED, Flow, ImmutableFlowUtils, PostorderFlowTraversal};
use gfx::display_list::OpaqueNode;
use script_layout_interface::wrapper_traits::{LayoutElement, LayoutNode, ThreadSafeLayoutNode};
use script_layout_interface::wrapper_traits::{LayoutNode, ThreadSafeLayoutNode};
use std::mem;
use style::atomic_refcell::AtomicRefCell;
use style::context::{LocalStyleContext, SharedStyleContext, StyleContext};
@ -32,7 +32,7 @@ pub struct RecalcStyleAndConstructFlows<'lc> {
#[allow(unsafe_code)]
impl<'lc, N> DomTraversalContext<N> for RecalcStyleAndConstructFlows<'lc>
where N: LayoutNode + TNode,
N::ConcreteElement: LayoutElement
N::ConcreteElement: TElement
{
type SharedContext = SharedLayoutContext;

2
components/layout_thread/lib.rs
View file

@ -103,7 +103,7 @@ use std::sync::atomic::{AtomicUsize, Ordering};
use std::sync::mpsc::{Receiver, Sender, channel};
use style::animation::Animation;
use style::context::{LocalStyleContextCreationInfo, ReflowGoal, SharedStyleContext};
use style::dom::{TDocument, TElement, TNode};
use style::dom::{TElement, TNode};
use style::error_reporting::{ParseErrorReporter, StdoutErrorReporter};
use style::logical_geometry::LogicalPoint;
use style::media_queries::{Device, MediaType};

33
components/script/layout_wrapper.rs
View file

@ -46,7 +46,7 @@ use parking_lot::RwLock;
use range::Range;
use script_layout_interface::{HTMLCanvasData, LayoutNodeType, SVGSVGData, TrustedNodeAddress};
use script_layout_interface::{OpaqueStyleAndLayoutData, PartialPersistentLayoutData};
use script_layout_interface::wrapper_traits::{DangerousThreadSafeLayoutNode, GetLayoutData, LayoutElement, LayoutNode};
use script_layout_interface::wrapper_traits::{DangerousThreadSafeLayoutNode, GetLayoutData, LayoutNode};
use script_layout_interface::wrapper_traits::{PseudoElementType, ThreadSafeLayoutElement, ThreadSafeLayoutNode};
use selectors::matching::ElementFlags;
use selectors::parser::{AttrSelector, NamespaceConstraint};
@ -61,7 +61,7 @@ use style::attr::AttrValue;
use style::computed_values::display;
use style::context::SharedStyleContext;
use style::data::ElementData;
use style::dom::{LayoutIterator, NodeInfo, OpaqueNode, PresentationalHintsSynthetizer, TDocument, TElement, TNode};
use style::dom::{LayoutIterator, NodeInfo, OpaqueNode, PresentationalHintsSynthetizer, TElement, TNode};
use style::dom::{TRestyleDamage, UnsafeNode};
use style::element_state::*;
use style::properties::{ComputedValues, PropertyDeclarationBlock};
@ -112,6 +112,10 @@ impl<'ln> ServoLayoutNode<'ln> {
self.node.type_id_for_layout()
}
}
pub fn as_document(&self) -> Option<ServoLayoutDocument<'ln>> {
self.node.downcast().map(ServoLayoutDocument::from_layout_js)
}
}
impl<'ln> NodeInfo for ServoLayoutNode<'ln> {
@ -128,7 +132,6 @@ impl<'ln> NodeInfo for ServoLayoutNode<'ln> {
impl<'ln> TNode for ServoLayoutNode<'ln> {
type ConcreteElement = ServoLayoutElement<'ln>;
type ConcreteDocument = ServoLayoutDocument<'ln>;
type ConcreteChildrenIterator = ServoChildrenIterator<'ln>;
fn to_unsafe(&self) -> UnsafeNode {
@ -177,10 +180,6 @@ impl<'ln> TNode for ServoLayoutNode<'ln> {
as_element(self.node)
}
fn as_document(&self) -> Option<ServoLayoutDocument<'ln>> {
self.node.downcast().map(ServoLayoutDocument::from_layout_js)
}
fn needs_dirty_on_viewport_size_changed(&self) -> bool {
unsafe { self.node.get_flag(DIRTY_ON_VIEWPORT_SIZE_CHANGE) }
}
@ -369,34 +368,29 @@ pub struct ServoLayoutDocument<'ld> {
chain: PhantomData<&'ld ()>,
}
impl<'ld> TDocument for ServoLayoutDocument<'ld> {
type ConcreteNode = ServoLayoutNode<'ld>;
type ConcreteElement = ServoLayoutElement<'ld>;
impl<'ld> ServoLayoutDocument<'ld> {
fn as_node(&self) -> ServoLayoutNode<'ld> {
ServoLayoutNode::from_layout_js(self.document.upcast())
}
fn root_node(&self) -> Option<ServoLayoutNode<'ld>> {
pub fn root_node(&self) -> Option<ServoLayoutNode<'ld>> {
self.as_node().children().find(ServoLayoutNode::is_element)
}
fn drain_modified_elements(&self) -> Vec<(ServoLayoutElement<'ld>, Snapshot)> {
pub fn drain_modified_elements(&self) -> Vec<(ServoLayoutElement<'ld>, Snapshot)> {
let elements = unsafe { self.document.drain_modified_elements() };
elements.into_iter().map(|(el, snapshot)| (ServoLayoutElement::from_layout_js(el), snapshot)).collect()
}
fn needs_paint_from_layout(&self) {
pub fn needs_paint_from_layout(&self) {
unsafe { self.document.needs_paint_from_layout(); }
}
fn will_paint(&self) {
pub fn will_paint(&self) {
unsafe { self.document.will_paint(); }
}
}
impl<'ld> ServoLayoutDocument<'ld> {
fn from_layout_js(doc: LayoutJS<Document>) -> ServoLayoutDocument<'ld> {
pub fn from_layout_js(doc: LayoutJS<Document>) -> ServoLayoutDocument<'ld> {
ServoLayoutDocument {
document: doc,
chain: PhantomData,
@ -433,7 +427,6 @@ impl<'le> PresentationalHintsSynthetizer for ServoLayoutElement<'le> {
impl<'le> TElement for ServoLayoutElement<'le> {
type ConcreteNode = ServoLayoutNode<'le>;
type ConcreteDocument = ServoLayoutDocument<'le>;
fn as_node(&self) -> ServoLayoutNode<'le> {
ServoLayoutNode::from_layout_js(self.element.upcast())
@ -1069,8 +1062,6 @@ impl<'le> ThreadSafeLayoutElement for ServoThreadSafeLayoutElement<'le> {
}
}
impl<'le> LayoutElement for ServoLayoutElement<'le> {}
/// This implementation of `::selectors::Element` is used for implementing lazy
/// pseudo-elements.
///

6
components/script_layout_interface/wrapper_traits.rs
View file

@ -18,7 +18,7 @@ use style::atomic_refcell::AtomicRefCell;
use style::computed_values::display;
use style::context::SharedStyleContext;
use style::data::ElementData;
use style::dom::{LayoutIterator, NodeInfo, PresentationalHintsSynthetizer, TElement, TNode};
use style::dom::{LayoutIterator, NodeInfo, PresentationalHintsSynthetizer, TNode};
use style::dom::OpaqueNode;
use style::properties::ServoComputedValues;
use style::selector_impl::{PseudoElement, PseudoElementCascadeType, RestyleDamage, ServoSelectorImpl};
@ -274,9 +274,6 @@ pub trait DangerousThreadSafeLayoutNode: ThreadSafeLayoutNode {
unsafe fn dangerous_next_sibling(&self) -> Option<Self>;
}
pub trait LayoutElement: Clone + Copy + Sized + Debug + GetLayoutData + TElement {
}
pub trait ThreadSafeLayoutElement: Clone + Copy + Sized + Debug +
::selectors::Element<Impl=ServoSelectorImpl> +
GetLayoutData +
@ -435,5 +432,4 @@ pub trait ThreadSafeLayoutElement: Clone + Copy + Sized + Debug +
.get(&other.style_pseudo_element()).unwrap().0.clone(),
}
}
}

24
components/style/dom.rs
View file

@ -14,7 +14,7 @@ use parking_lot::RwLock;
use properties::{ComputedValues, PropertyDeclarationBlock};
use properties::longhands::display::computed_value as display;
use restyle_hints::{RESTYLE_DESCENDANTS, RESTYLE_LATER_SIBLINGS, RESTYLE_SELF, RestyleHint};
use selector_impl::{ElementExt, PseudoElement, RestyleDamage, Snapshot};
use selector_impl::{ElementExt, PseudoElement, RestyleDamage};
use selector_matching::ApplicableDeclarationBlock;
use sink::Push;
use std::fmt::Debug;
@ -105,8 +105,7 @@ impl<T, I> Iterator for LayoutIterator<T> where T: Iterator<Item=I>, I: NodeInfo
}
pub trait TNode : Sized + Copy + Clone + NodeInfo {
type ConcreteElement: TElement<ConcreteNode = Self, ConcreteDocument = Self::ConcreteDocument>;
type ConcreteDocument: TDocument<ConcreteNode = Self, ConcreteElement = Self::ConcreteElement>;
type ConcreteElement: TElement<ConcreteNode = Self>;
type ConcreteChildrenIterator: Iterator<Item = Self>;
fn to_unsafe(&self) -> UnsafeNode;
@ -130,8 +129,6 @@ pub trait TNode : Sized + Copy + Clone + NodeInfo {
fn as_element(&self) -> Option<Self::ConcreteElement>;
fn as_document(&self) -> Option<Self::ConcreteDocument>;
fn needs_dirty_on_viewport_size_changed(&self) -> bool;
unsafe fn set_dirty_on_viewport_size_changed(&self);
@ -151,28 +148,13 @@ pub trait TNode : Sized + Copy + Clone + NodeInfo {
fn next_sibling(&self) -> Option<Self>;
}
pub trait TDocument : Sized + Copy + Clone {
type ConcreteNode: TNode<ConcreteElement = Self::ConcreteElement, ConcreteDocument = Self>;
type ConcreteElement: TElement<ConcreteNode = Self::ConcreteNode, ConcreteDocument = Self>;
fn as_node(&self) -> Self::ConcreteNode;
fn root_node(&self) -> Option<Self::ConcreteNode>;
fn drain_modified_elements(&self) -> Vec<(Self::ConcreteElement, Snapshot)>;
fn needs_paint_from_layout(&self);
fn will_paint(&self);
}
pub trait PresentationalHintsSynthetizer {
fn synthesize_presentational_hints_for_legacy_attributes<V>(&self, hints: &mut V)
where V: Push<ApplicableDeclarationBlock>;
}
pub trait TElement : PartialEq + Debug + Sized + Copy + Clone + ElementExt + PresentationalHintsSynthetizer {
type ConcreteNode: TNode<ConcreteElement = Self, ConcreteDocument = Self::ConcreteDocument>;
type ConcreteDocument: TDocument<ConcreteNode = Self::ConcreteNode, ConcreteElement = Self>;
type ConcreteNode: TNode<ConcreteElement = Self>;
fn as_node(&self) -> Self::ConcreteNode;

41
components/style/gecko/wrapper.rs
View file

@ -7,22 +7,20 @@
use atomic_refcell::{AtomicRef, AtomicRefCell};
use data::ElementData;
use dom::{LayoutIterator, NodeInfo, TDocument, TElement, TNode, UnsafeNode};
use dom::{LayoutIterator, NodeInfo, TElement, TNode, UnsafeNode};
use dom::{OpaqueNode, PresentationalHintsSynthetizer};
use element_state::ElementState;
use error_reporting::StdoutErrorReporter;
use gecko::restyle_damage::GeckoRestyleDamage;
use gecko::selector_impl::{GeckoSelectorImpl, NonTSPseudoClass, PseudoElement};
use gecko::snapshot::GeckoElementSnapshot;
use gecko::snapshot_helpers;
use gecko_bindings::bindings;
use gecko_bindings::bindings::{Gecko_DropStyleChildrenIterator, Gecko_MaybeCreateStyleChildrenIterator};
use gecko_bindings::bindings::{Gecko_ElementState, Gecko_GetDocumentElement};
use gecko_bindings::bindings::{Gecko_GetLastChild, Gecko_GetNextStyleChild};
use gecko_bindings::bindings::{Gecko_ElementState, Gecko_GetLastChild, Gecko_GetNextStyleChild};
use gecko_bindings::bindings::{Gecko_GetServoDeclarationBlock, Gecko_IsHTMLElementInHTMLDocument};
use gecko_bindings::bindings::{Gecko_IsLink, Gecko_IsRootElement};
use gecko_bindings::bindings::{Gecko_IsUnvisitedLink, Gecko_IsVisitedLink, Gecko_Namespace};
use gecko_bindings::bindings::{RawGeckoDocument, RawGeckoElement, RawGeckoNode};
use gecko_bindings::bindings::{RawGeckoElement, RawGeckoNode};
use gecko_bindings::bindings::Gecko_ClassOrClassList;
use gecko_bindings::bindings::Gecko_GetStyleContext;
use gecko_bindings::bindings::Gecko_SetNodeFlags;
@ -79,7 +77,6 @@ impl<'ln> NodeInfo for GeckoNode<'ln> {
}
impl<'ln> TNode for GeckoNode<'ln> {
type ConcreteDocument = GeckoDocument<'ln>;
type ConcreteElement = GeckoElement<'ln>;
type ConcreteChildrenIterator = GeckoChildrenIterator<'ln>;
@ -138,10 +135,6 @@ impl<'ln> TNode for GeckoNode<'ln> {
}
}
fn as_document(&self) -> Option<GeckoDocument<'ln>> {
unimplemented!()
}
fn can_be_fragmented(&self) -> bool {
// FIXME(SimonSapin): Servo uses this to implement CSS multicol / fragmentation
// Maybe this isn’t useful for Gecko?
@ -219,33 +212,6 @@ impl<'a> Iterator for GeckoChildrenIterator<'a> {
}
}
#[derive(Clone, Copy)]
pub struct GeckoDocument<'ld>(pub &'ld RawGeckoDocument);
impl<'ld> TDocument for GeckoDocument<'ld> {
type ConcreteNode = GeckoNode<'ld>;
type ConcreteElement = GeckoElement<'ld>;
fn as_node(&self) -> GeckoNode<'ld> {
unsafe { GeckoNode(&*(self.0 as *const _ as *const RawGeckoNode)) }
}
fn root_node(&self) -> Option<GeckoNode<'ld>> {
unsafe {
Gecko_GetDocumentElement(self.0).map(|el| GeckoElement(el).as_node())
}
}
fn drain_modified_elements(&self) -> Vec<(GeckoElement<'ld>, GeckoElementSnapshot)> {
unimplemented!()
/*
let elements = unsafe { self.0.drain_modified_elements() };
elements.into_iter().map(|(el, snapshot)| (ServoLayoutElement::from_layout_js(el), snapshot)).collect()*/
}
fn will_paint(&self) { unimplemented!() }
fn needs_paint_from_layout(&self) { unimplemented!() }
}
#[derive(Clone, Copy)]
pub struct GeckoElement<'le>(pub &'le RawGeckoElement);
@ -323,7 +289,6 @@ lazy_static! {
impl<'le> TElement for GeckoElement<'le> {
type ConcreteNode = GeckoNode<'le>;
type ConcreteDocument = GeckoDocument<'le>;
fn as_node(&self) -> Self::ConcreteNode {
unsafe { GeckoNode(&*(self.0 as *const _ as *const RawGeckoNode)) }