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https://github.com/servo/servo.git
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eec3fad93d
The basic idea is it's safe to output an image for reftest by testing:
- That the compositor doesn't have any animations active.
- That the compositor is not waiting on any outstanding paint messages to arrive.
- That the script tasks are "idle" and therefore won't cause reflow.
- This currently means page loaded, onload fired, reftest-wait not active, first reflow triggered.
- It could easily be expanded to handle pending timers etc.
- That the "epoch" that the layout tasks have last laid out after script went idle, is reflected by the compositor in all visible layers for that pipeline.
58 lines
2 KiB
Rust
58 lines
2 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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extern crate gfx;
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extern crate script_traits;
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extern crate msg;
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extern crate profile_traits;
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extern crate net_traits;
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extern crate url;
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extern crate util;
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// This module contains traits in layout used generically
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// in the rest of Servo.
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// The traits are here instead of in layout so
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// that these modules won't have to depend on layout.
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use gfx::font_cache_task::FontCacheTask;
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use gfx::paint_task::PaintChan;
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use msg::compositor_msg::Epoch;
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use msg::constellation_msg::{ConstellationChan, Failure, PipelineId, PipelineExitType};
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use profile_traits::mem;
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use profile_traits::time;
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use net_traits::image_cache_task::ImageCacheTask;
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use url::Url;
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use script_traits::{ScriptControlChan, OpaqueScriptLayoutChannel};
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use std::sync::mpsc::{Sender, Receiver};
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/// Messages sent to the layout task from the constellation
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pub enum LayoutControlMsg {
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ExitNow(PipelineExitType),
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GetCurrentEpoch(Sender<Epoch>),
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TickAnimations,
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}
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/// A channel wrapper for constellation messages
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pub struct LayoutControlChan(pub Sender<LayoutControlMsg>);
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// A static method creating a layout task
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// Here to remove the compositor -> layout dependency
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pub trait LayoutTaskFactory {
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// FIXME: use a proper static method
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fn create(_phantom: Option<&mut Self>,
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id: PipelineId,
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url: Url,
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is_iframe: bool,
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chan: OpaqueScriptLayoutChannel,
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pipeline_port: Receiver<LayoutControlMsg>,
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constellation_chan: ConstellationChan,
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failure_msg: Failure,
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script_chan: ScriptControlChan,
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paint_chan: PaintChan,
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image_cache_task: ImageCacheTask,
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font_cache_task: FontCacheTask,
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time_profiler_chan: time::ProfilerChan,
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mem_profiler_chan: mem::ProfilerChan,
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shutdown_chan: Sender<()>);
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}
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