Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-03 04:30:10 +01:00
Code Issues Projects Releases Packages Wiki Activity

Implement scroll transactions

Browse source 
working proof of concept transactions

make the transaction transparent on mac

simplify match

further simplify match
This commit is contained in:
Gregory 2016-12-06 08:50:07 +01:00 • committed by Keith Yeung
parent 75418b7005
commit 1b9078a3c1
1 changed files with 11 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

12
components/compositing/compositor.rs
View file

@ -31,6 +31,7 @@ use std::collections::HashMap;
use std::fs::File;
use std::rc::Rc;
use std::sync::mpsc::Sender;
use std::time::{Duration, Instant};
use style_traits::{PagePx, ViewportPx};
use style_traits::viewport::ViewportConstraints;
use time::{precise_time_ns, precise_time_s};
@ -198,6 +199,8 @@ pub struct IOCompositor<Window: WindowMethods> {
/// Whether a scroll is in progress; i.e. whether the user's fingers are down.
scroll_in_progress: bool,
in_scroll_transaction: Option<Instant>,
/// The webrender renderer.
webrender: webrender::Renderer,
@ -396,6 +399,7 @@ impl<Window: WindowMethods> IOCompositor<Window> {
last_composite_time: 0,
ready_to_save_state: ReadyState::Unknown,
scroll_in_progress: false,
in_scroll_transaction: None,
webrender: state.webrender,
webrender_api: state.webrender_api_sender.create_api(),
}
@ -1068,11 +1072,17 @@ impl<Window: WindowMethods> IOCompositor<Window> {
fn on_scroll_window_event(&mut self,
delta: TypedPoint2D<f32, DevicePixel>,
cursor: TypedPoint2D<i32, DevicePixel>) {
let event_phase = match (self.scroll_in_progress, self.in_scroll_transaction) {
(false, Some(last_scroll)) if last_scroll.elapsed() > Duration::from_millis(80) =>
ScrollEventPhase::Start,
(_, _) => ScrollEventPhase::Move(self.scroll_in_progress),
};
self.in_scroll_transaction = Some(Instant::now());
self.pending_scroll_zoom_events.push(ScrollZoomEvent {
magnification: 1.0,
delta: delta,
cursor: cursor,
phase: ScrollEventPhase::Move(self.scroll_in_progress),
phase: event_phase,
event_count: 1,
});
}