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d12c6e7383
This patch puts in the initial framework for incremental reflow. Nodes' styles are no longer recalculated unless the node has changed. I've been hacking on the general problem of incremental reflow for the past couple weeks, and I've yet to get a full implementation that actually passes all the reftests + wikipedia + cnn. Therefore, I'm going to try to land the different parts of it one by one. This patch only does incremental style recalc, without incremental flow construction, inline-size bubbling, reflow, or display lists. Those will be coming in that order as I finish them. At least with this strategy, I can land a working version of incremental reflow, even if not yet complete. r? @pcwalton
41 lines
1.5 KiB
Rust
41 lines
1.5 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//! Traits that nodes must implement. Breaks the otherwise-cyclic dependency between layout and
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//! style.
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use selectors::AttrSelector;
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use string_cache::{Atom, Namespace};
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pub trait TNode<'a, E: TElement<'a>> : Clone + Copy {
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fn parent_node(self) -> Option<Self>;
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fn first_child(self) -> Option<Self>;
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fn prev_sibling(self) -> Option<Self>;
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fn next_sibling(self) -> Option<Self>;
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fn is_document(self) -> bool;
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fn is_element(self) -> bool;
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fn as_element(self) -> E;
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fn match_attr(self, attr: &AttrSelector, test: |&str| -> bool) -> bool;
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fn is_html_element_in_html_document(self) -> bool;
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fn is_dirty(self) -> bool;
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unsafe fn set_dirty(self, value: bool);
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fn has_dirty_descendants(self) -> bool;
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unsafe fn set_dirty_descendants(self, value: bool);
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}
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pub trait TElement<'a> : Copy {
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fn get_attr(self, namespace: &Namespace, attr: &str) -> Option<&'a str>;
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fn get_attrs(self, attr: &str) -> Vec<&'a str>;
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fn get_link(self) -> Option<&'a str>;
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fn get_local_name(self) -> &'a Atom;
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fn get_namespace(self) -> &'a Namespace;
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fn get_hover_state(self) -> bool;
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fn get_id(self) -> Option<Atom>;
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fn get_disabled_state(self) -> bool;
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fn get_enabled_state(self) -> bool;
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fn has_class(self, name: &str) -> bool;
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}
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