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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use selectors::matching::QuirksMode;
use style::dom::{TDocument, TNode};
use style::shared_lock::{
SharedRwLock as StyleSharedRwLock, SharedRwLockReadGuard as StyleSharedRwLockReadGuard,
};
use style::stylist::Stylist;
use crate::dom::bindings::root::LayoutDom;
use crate::dom::document::{Document, LayoutDocumentHelpers};
use crate::dom::node::{LayoutNodeHelpers, Node, NodeFlags};
use crate::layout_dom::{ServoLayoutElement, ServoLayoutNode, ServoShadowRoot};
// A wrapper around documents that ensures ayout can only ever access safe properties.
#[derive(Clone, Copy)]
pub struct ServoLayoutDocument<'dom> {
/// The wrapped private DOM Document
document: LayoutDom<'dom, Document>,
}
impl<'ld> ::style::dom::TDocument for ServoLayoutDocument<'ld> {
type ConcreteNode = ServoLayoutNode<'ld>;
fn as_node(&self) -> Self::ConcreteNode {
ServoLayoutNode::from_layout_js(self.document.upcast())
}
fn quirks_mode(&self) -> QuirksMode {
self.document.quirks_mode()
}
fn is_html_document(&self) -> bool {
self.document.is_html_document_for_layout()
}
fn shared_lock(&self) -> &StyleSharedRwLock {
self.document.style_shared_lock()
}
}
impl<'ld> ServoLayoutDocument<'ld> {
pub fn root_element(&self) -> Option<ServoLayoutElement<'ld>> {
self.as_node()
.dom_children()
.flat_map(|n| n.as_element())
.next()
}
pub fn needs_paint_from_layout(&self) {
self.document.needs_paint_from_layout()
}
pub fn will_paint(&self) {
self.document.will_paint()
}
pub fn style_shared_lock(&self) -> &StyleSharedRwLock {
self.document.style_shared_lock()
}
pub fn shadow_roots(&self) -> Vec<ServoShadowRoot> {
unsafe {
self.document
.shadow_roots()
.iter()
.map(|sr| {
debug_assert!(sr.upcast::<Node>().get_flag(NodeFlags::IS_CONNECTED));
ServoShadowRoot::from_layout_js(*sr)
})
.collect()
}
}
pub fn flush_shadow_roots_stylesheets(
&self,
stylist: &mut Stylist,
guard: &StyleSharedRwLockReadGuard,
) {
unsafe {
if !self.document.shadow_roots_styles_changed() {
return;
}
self.document.flush_shadow_roots_stylesheets();
for shadow_root in self.shadow_roots() {
shadow_root.flush_stylesheets(stylist, guard);
}
}
}
pub fn from_layout_js(document: LayoutDom<'ld, Document>) -> Self {
ServoLayoutDocument { document }
}
}
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