Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-06 14:10:11 +01:00
Code Issues Projects Releases Packages Wiki Activity

script: Keep the DOM-side viewport up to date when scrolling happens in

Browse source 
WebRender.

This happens asynchronously, just as it does in non-WebRender mode.

This functionality is a prerequisite for doing proper display-list-based
hit testing in WebRender, since it moves the scroll offsets into Servo
(and, specifically, into the script thread, enabling iframe event
forwarding) instead of keeping them private to WebRender.

Requires servo/webrender_traits#55 and servo/webrender#277.

Partially addresses #11108.
This commit is contained in:
Patrick Walton 2016-05-24 18:40:39 -07:00
parent 55b0bb027c
commit a86f77e36d
32 changed files with 318 additions and 99 deletions
Download patch file Download diff file Expand all files Collapse all files

33
components/gfx/display_list/mod.rs
View file

@ -22,7 +22,7 @@ use euclid::num::Zero;
use euclid::rect::TypedRect;
use euclid::{Matrix2D, Matrix4D, Point2D, Rect, SideOffsets2D, Size2D};
use fnv::FnvHasher;
use gfx_traits::{LayerId, ScrollPolicy};
use gfx_traits::{LayerId, ScrollPolicy, StackingContextId};
use ipc_channel::ipc::IpcSharedMemory;
use msg::constellation_msg::PipelineId;
use net_traits::image::base::{Image, PixelFormat};
@ -1395,37 +1395,6 @@ impl fmt::Debug for DisplayItem {
}
}
#[derive(Clone, Debug, PartialEq, Eq, Copy, Hash, Deserialize, Serialize, HeapSizeOf, RustcEncodable)]
pub enum FragmentType {
/// A StackingContext for the fragment body itself.
FragmentBody,
/// A StackingContext created to contain ::before pseudo-element content.
BeforePseudoContent,
/// A StackingContext created to contain ::after pseudo-element content.
AfterPseudoContent,
}
/// A unique ID for every stacking context.
#[derive(Clone, Copy, Debug, Deserialize, Eq, Hash, HeapSizeOf, PartialEq, RustcEncodable, Serialize)]
pub struct StackingContextId(
/// The identifier for this StackingContext, derived from the Flow's memory address
/// and fragment type. As a space optimization, these are combined into a single word.
usize
);
impl StackingContextId {
#[inline(always)]
pub fn new(id: usize) -> StackingContextId {
StackingContextId::new_of_type(id, FragmentType::FragmentBody)
}
#[inline(always)]
pub fn new_of_type(id: usize, fragment_type: FragmentType) -> StackingContextId {
debug_assert_eq!(id & fragment_type as usize, 0);
StackingContextId(id | fragment_type as usize)
}
}
#[derive(Copy, Clone, HeapSizeOf, Deserialize, Serialize)]
pub struct WebRenderImageInfo {
pub width: u32,