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Incremental Style Recalc

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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
This commit is contained in:
Clark Gaebel 2014-10-06 11:40:05 -04:00
parent 510f8a817f
commit d12c6e7383
31 changed files with 641 additions and 424 deletions
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10
components/script_traits/lib.rs
View file

@ -9,8 +9,10 @@
extern crate devtools_traits;
extern crate geom;
extern crate libc;
extern crate "msg" as servo_msg;
extern crate "net" as servo_net;
extern crate "util" as servo_util;
extern crate url;
extern crate serialize;
@ -20,11 +22,13 @@ extern crate serialize;
// that these modules won't have to depend on script.
use devtools_traits::DevtoolsControlChan;
use libc::c_void;
use servo_msg::constellation_msg::{ConstellationChan, PipelineId, Failure, WindowSizeData};
use servo_msg::constellation_msg::SubpageId;
use servo_msg::compositor_msg::ScriptListener;
use servo_net::image_cache_task::ImageCacheTask;
use servo_net::resource_task::ResourceTask;
use servo_util::smallvec::SmallVec1;
use std::any::Any;
use url::Url;
@ -32,6 +36,10 @@ use geom::point::Point2D;
use serialize::{Encodable, Encoder};
/// The address of a node. Layout sends these back. They must be validated via
/// `from_untrusted_node_address` before they can be used, because we do not trust layout.
pub type UntrustedNodeAddress = *const c_void;
pub struct NewLayoutInfo {
pub old_pipeline_id: PipelineId,
pub new_pipeline_id: PipelineId,
@ -60,7 +68,7 @@ pub enum ConstellationControlMsg {
/// Events from the compositor that the script task needs to know about
pub enum CompositorEvent {
ResizeEvent(WindowSizeData),
ReflowEvent,
ReflowEvent(SmallVec1<UntrustedNodeAddress>),
ClickEvent(uint, Point2D<f32>),
MouseDownEvent(uint, Point2D<f32>),
MouseUpEvent(uint, Point2D<f32>),