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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 http://mozilla.org/MPL/2.0/. */
//! Implements sequential traversal over the DOM tree.
use dom::{StylingMode, TElement, TNode};
use traversal::DomTraversalContext;
pub fn traverse_dom<N, C>(root: N,
shared: &C::SharedContext)
where N: TNode,
C: DomTraversalContext<N>
{
fn doit<'a, N, C>(context: &'a C, node: N)
where N: TNode,
C: DomTraversalContext<N>
{
context.process_preorder(node);
if let Some(el) = node.as_element() {
C::traverse_children(el, |kid| doit::<N, C>(context, kid));
}
if context.needs_postorder_traversal() {
context.process_postorder(node);
}
}
debug_assert!(root.as_element().unwrap().styling_mode() != StylingMode::Stop);
let context = C::new(shared, root.opaque());
doit::<N, C>(&context, root);
// Clear the local LRU cache since we store stateful elements inside.
context.local_context().style_sharing_candidate_cache.borrow_mut().clear();
}
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