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compositor: Unify the cross process and in-process API (#36443)

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Because there used to be two traits exposing messages to the compositor,
there were two kinds of messages that could be sent:

1. In-process messages from the `Constellation`
2. Cross-process messages from other parts of Servo

Now these two types of messages can be unified into one type. With that
done the compositor can simply keep a single `IpcReceiver` for all
messages, instead of having to set up a route for the cross-process
messsages. This decreases overhead of cross proceses messages a bit, but
more importantly solves an issue where Servo would rely on the
compositor's cross-process message route after the `Constellation` had
called `ROUTER.shutdown()`.

This is part of #36442.

Testing: This is covered by existing WPT tests.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
This commit is contained in:
Martin Robinson 2025-04-12 23:38:22 +02:00 • committed by GitHub
parent 5f0f457ac3
commit 4c55104b36
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8 changed files with 95 additions and 215 deletions
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95
components/compositing/compositor.rs
View file

@ -19,8 +19,7 @@ use bitflags::bitflags;
use compositing_traits::display_list::{CompositorDisplayListInfo, HitTestInfo, ScrollTree};
use compositing_traits::rendering_context::RenderingContext;
use compositing_traits::{
CompositionPipeline, CompositorMsg, CompositorReceiver, CrossProcessCompositorMessage,
ImageUpdate, RendererWebView, SendableFrameTree,
CompositionPipeline, CompositorMsg, ImageUpdate, RendererWebView, SendableFrameTree,
};
use constellation_traits::{
AnimationTickType, EmbedderToConstellationMessage, PaintMetricEvent, WindowSizeType,
@ -33,7 +32,7 @@ use embedder_traits::{
};
use euclid::{Box2D, Point2D, Rect, Scale, Size2D, Transform3D};
use fnv::FnvHashMap;
use ipc_channel::ipc::{self, IpcSharedMemory};
use ipc_channel::ipc::{self, IpcReceiver, IpcSharedMemory};
use libc::c_void;
use log::{debug, info, trace, warn};
use pixels::{CorsStatus, Image, ImageFrame, PixelFormat};
@ -96,7 +95,7 @@ pub struct ServoRenderer {
shutdown_state: Rc<Cell<ShutdownState>>,
/// The port on which we receive messages.
compositor_receiver: CompositorReceiver,
compositor_receiver: IpcReceiver<CompositorMsg>,
/// The channel on which messages can be sent to the constellation.
pub(crate) constellation_sender: Sender<EmbedderToConstellationMessage>,
@ -515,8 +514,8 @@ impl IOCompositor {
.global
.borrow_mut()
.compositor_receiver
.try_recv_compositor_msg()
.is_some()
.try_recv()
.is_ok()
{}
// Tell the profiler, memory profiler, and scrolling timer to shut down.
@ -678,33 +677,14 @@ impl IOCompositor {
webview.dispatch_input_event(InputEvent::MouseMove(MouseMoveEvent { point }));
},
CompositorMsg::CrossProcess(cross_proces_message) => {
self.handle_cross_process_message(cross_proces_message);
},
}
}
/// Accept messages from content processes that need to be relayed to the WebRender
/// instance in the parent process.
#[cfg_attr(
feature = "tracing",
tracing::instrument(skip_all, fields(servo_profiling = true), level = "trace")
)]
fn handle_cross_process_message(&mut self, msg: CrossProcessCompositorMessage) {
match msg {
CrossProcessCompositorMessage::SendInitialTransaction(pipeline) => {
CompositorMsg::SendInitialTransaction(pipeline) => {
let mut txn = Transaction::new();
txn.set_display_list(WebRenderEpoch(0), (pipeline, Default::default()));
self.generate_frame(&mut txn, RenderReasons::SCENE);
self.global.borrow_mut().send_transaction(txn);
},
CrossProcessCompositorMessage::SendScrollNode(
webview_id,
pipeline_id,
point,
external_scroll_id,
) => {
CompositorMsg::SendScrollNode(webview_id, pipeline_id, point, external_scroll_id) => {
let Some(webview) = self.webviews.get_mut(webview_id) else {
return;
};
@ -738,7 +718,7 @@ impl IOCompositor {
self.global.borrow_mut().send_transaction(txn);
},
CrossProcessCompositorMessage::SendDisplayList {
CompositorMsg::SendDisplayList {
webview_id,
display_list_descriptor,
display_list_receiver,
@ -827,7 +807,7 @@ impl IOCompositor {
self.global.borrow_mut().send_transaction(transaction);
},
CrossProcessCompositorMessage::HitTest(pipeline, point, flags, sender) => {
CompositorMsg::HitTest(pipeline, point, flags, sender) => {
// When a display list is sent to WebRender, it starts scene building in a
// separate thread and then that display list is available for hit testing.
// Without flushing scene building, any hit test we do might be done against
@ -853,11 +833,11 @@ impl IOCompositor {
let _ = sender.send(result);
},
CrossProcessCompositorMessage::GenerateImageKey(sender) => {
CompositorMsg::GenerateImageKey(sender) => {
let _ = sender.send(self.global.borrow().webrender_api.generate_image_key());
},
CrossProcessCompositorMessage::UpdateImages(updates) => {
CompositorMsg::UpdateImages(updates) => {
let mut txn = Transaction::new();
for update in updates {
match update {
@ -873,26 +853,21 @@ impl IOCompositor {
self.global.borrow_mut().send_transaction(txn);
},
CrossProcessCompositorMessage::AddFont(font_key, data, index) => {
CompositorMsg::AddFont(font_key, data, index) => {
self.add_font(font_key, index, data);
},
CrossProcessCompositorMessage::AddSystemFont(font_key, native_handle) => {
CompositorMsg::AddSystemFont(font_key, native_handle) => {
let mut transaction = Transaction::new();
transaction.add_native_font(font_key, native_handle);
self.global.borrow_mut().send_transaction(transaction);
},
CrossProcessCompositorMessage::AddFontInstance(
font_instance_key,
font_key,
size,
flags,
) => {
CompositorMsg::AddFontInstance(font_instance_key, font_key, size, flags) => {
self.add_font_instance(font_instance_key, font_key, size, flags);
},
CrossProcessCompositorMessage::RemoveFonts(keys, instance_keys) => {
CompositorMsg::RemoveFonts(keys, instance_keys) => {
let mut transaction = Transaction::new();
for instance in instance_keys.into_iter() {
@ -905,13 +880,13 @@ impl IOCompositor {
self.global.borrow_mut().send_transaction(transaction);
},
CrossProcessCompositorMessage::AddImage(key, desc, data) => {
CompositorMsg::AddImage(key, desc, data) => {
let mut txn = Transaction::new();
txn.add_image(key, desc, data.into(), None);
self.global.borrow_mut().send_transaction(txn);
},
CrossProcessCompositorMessage::GenerateFontKeys(
CompositorMsg::GenerateFontKeys(
number_of_font_keys,
number_of_font_instance_keys,
result_sender,
@ -929,7 +904,7 @@ impl IOCompositor {
.collect();
let _ = result_sender.send((font_keys, font_instance_keys));
},
CrossProcessCompositorMessage::GetClientWindowRect(webview_id, response_sender) => {
CompositorMsg::GetClientWindowRect(webview_id, response_sender) => {
let screen_geometry = self.webview_screen_geometry(webview_id);
let rect = DeviceIntRect::from_origin_and_size(
screen_geometry.offset,
@ -942,7 +917,7 @@ impl IOCompositor {
warn!("Sending response to get client window failed ({error:?}).");
}
},
CrossProcessCompositorMessage::GetScreenSize(webview_id, response_sender) => {
CompositorMsg::GetScreenSize(webview_id, response_sender) => {
let screen_geometry = self.webview_screen_geometry(webview_id);
let screen_size = screen_geometry.size.to_f32() / self.hidpi_factor;
@ -950,7 +925,7 @@ impl IOCompositor {
warn!("Sending response to get screen size failed ({error:?}).");
}
},
CrossProcessCompositorMessage::GetAvailableScreenSize(webview_id, response_sender) => {
CompositorMsg::GetAvailableScreenSize(webview_id, response_sender) => {
let screen_geometry = self.webview_screen_geometry(webview_id);
let available_screen_size =
screen_geometry.available_size.to_f32() / self.hidpi_factor;
@ -990,16 +965,14 @@ impl IOCompositor {
}
let _ = sender.send(());
},
CompositorMsg::CrossProcess(CrossProcessCompositorMessage::GenerateImageKey(
sender,
)) => {
CompositorMsg::GenerateImageKey(sender) => {
let _ = sender.send(self.global.borrow().webrender_api.generate_image_key());
},
CompositorMsg::CrossProcess(CrossProcessCompositorMessage::GenerateFontKeys(
CompositorMsg::GenerateFontKeys(
number_of_font_keys,
number_of_font_instance_keys,
result_sender,
)) => {
) => {
let font_keys = (0..number_of_font_keys)
.map(|_| self.global.borrow().webrender_api.generate_font_key())
.collect();
@ -1013,26 +986,17 @@ impl IOCompositor {
.collect();
let _ = result_sender.send((font_keys, font_instance_keys));
},
CompositorMsg::CrossProcess(CrossProcessCompositorMessage::GetClientWindowRect(
_,
response_sender,
)) => {
CompositorMsg::GetClientWindowRect(_, response_sender) => {
if let Err(error) = response_sender.send(Default::default()) {
warn!("Sending response to get client window failed ({error:?}).");
}
},
CompositorMsg::CrossProcess(CrossProcessCompositorMessage::GetScreenSize(
_,
response_sender,
)) => {
CompositorMsg::GetScreenSize(_, response_sender) => {
if let Err(error) = response_sender.send(Default::default()) {
warn!("Sending response to get client window failed ({error:?}).");
}
},
CompositorMsg::CrossProcess(CrossProcessCompositorMessage::GetAvailableScreenSize(
_,
response_sender,
)) => {
CompositorMsg::GetAvailableScreenSize(_, response_sender) => {
if let Err(error) = response_sender.send(Default::default()) {
warn!("Sending response to get client window failed ({error:?}).");
}
@ -1672,12 +1636,7 @@ impl IOCompositor {
// Check for new messages coming from the other threads in the system.
let mut compositor_messages = vec![];
let mut found_recomposite_msg = false;
while let Some(msg) = self
.global
.borrow_mut()
.compositor_receiver
.try_recv_compositor_msg()
{
while let Ok(msg) = self.global.borrow_mut().compositor_receiver.try_recv() {
match msg {
CompositorMsg::NewWebRenderFrameReady(..) if found_recomposite_msg => {
// Only take one of duplicate NewWebRendeFrameReady messages, but do subtract

5
components/compositing/lib.rs
View file

@ -8,10 +8,11 @@ use std::cell::Cell;
use std::rc::Rc;
use compositing_traits::rendering_context::RenderingContext;
use compositing_traits::{CompositorProxy, CompositorReceiver};
use compositing_traits::{CompositorMsg, CompositorProxy};
use constellation_traits::EmbedderToConstellationMessage;
use crossbeam_channel::Sender;
use embedder_traits::ShutdownState;
use ipc_channel::ipc::IpcReceiver;
use profile_traits::{mem, time};
use webrender::RenderApi;
use webrender_api::DocumentId;
@ -32,7 +33,7 @@ pub struct InitialCompositorState {
/// A channel to the compositor.
pub sender: CompositorProxy,
/// A port on which messages inbound to the compositor can be received.
pub receiver: CompositorReceiver,
pub receiver: IpcReceiver<CompositorMsg>,
/// A channel to the constellation.
pub constellation_chan: Sender<EmbedderToConstellationMessage>,
/// A channel to the time profiler thread.

16
components/compositing/tracing.rs
View file

@ -42,7 +42,21 @@ mod from_constellation {
Self::LoadComplete(..) => target!("LoadComplete"),
Self::WebDriverMouseButtonEvent(..) => target!("WebDriverMouseButtonEvent"),
Self::WebDriverMouseMoveEvent(..) => target!("WebDriverMouseMoveEvent"),
Self::CrossProcess(_) => target!("CrossProcess"),
Self::SendInitialTransaction(..) => target!("SendInitialTransaction"),
Self::SendScrollNode(..) => target!("SendScrollNode"),
Self::SendDisplayList { .. } => todo!("SendDisplayList"),
Self::HitTest(..) => target!("HitTest"),
Self::GenerateImageKey(..) => target!("GenerateImageKey"),
Self::AddImage(..) => target!("AddImage"),
Self::UpdateImages(..) => target!("UpdateImages"),
Self::GenerateFontKeys(..) => target!("GenerateFontKeys"),
Self::AddFont(..) => target!("AddFont"),
Self::AddSystemFont(..) => target!("AddSystemFont"),
Self::AddFontInstance(..) => target!("AddFontInstance"),
Self::RemoveFonts(..) => target!("RemoveFonts"),
Self::GetClientWindowRect(..) => target!("GetClientWindowRect"),
Self::GetScreenSize(..) => target!("GetScreenSize"),
Self::GetAvailableScreenSize(..) => target!("GetAvailableScreenSize"),
}
}
}

3
components/constellation/pipeline.rs
View file

@ -291,8 +291,7 @@ impl Pipeline {
webrender_document: state.webrender_document,
cross_process_compositor_api: state
.compositor_proxy
.cross_process_compositor_api
.clone(),
.cross_process_compositor_api(),
webgl_chan: state.webgl_chan,
webxr_registry: state.webxr_registry,
player_context: state.player_context,

6
components/script/dom/screen.rs
View file

@ -2,7 +2,7 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use compositing_traits::CrossProcessCompositorMessage;
use compositing_traits::CompositorMsg;
use dom_struct::dom_struct;
use euclid::Size2D;
use profile_traits::ipc;
@ -41,7 +41,7 @@ impl Screen {
self.window
.compositor_api()
.sender()
.send(CrossProcessCompositorMessage::GetScreenSize(
.send(CompositorMsg::GetScreenSize(
self.window.webview_id(),
sender,
))
@ -57,7 +57,7 @@ impl Screen {
self.window
.compositor_api()
.sender()
.send(CrossProcessCompositorMessage::GetAvailableScreenSize(
.send(CompositorMsg::GetAvailableScreenSize(
self.window.webview_id(),
sender,
))

5
components/script/dom/window.rs
View file

@ -1898,10 +1898,7 @@ impl Window {
let (sender, receiver) =
ProfiledIpc::channel::<DeviceIndependentIntRect>(timer_profile_chan).unwrap();
let _ = self.compositor_api.sender().send(
compositing_traits::CrossProcessCompositorMessage::GetClientWindowRect(
self.webview_id(),
sender,
),
compositing_traits::CompositorMsg::GetClientWindowRect(self.webview_id(), sender),
);
let rect = receiver.recv().unwrap_or_default();
(

45
components/servo/lib.rs
View file

@ -48,8 +48,8 @@ pub use compositing_traits::rendering_context::{
OffscreenRenderingContext, RenderingContext, SoftwareRenderingContext, WindowRenderingContext,
};
use compositing_traits::{
CompositorMsg, CompositorProxy, CompositorReceiver, CrossProcessCompositorApi,
WebrenderExternalImageHandlers, WebrenderExternalImageRegistry, WebrenderImageHandlerType,
CompositorMsg, CompositorProxy, WebrenderExternalImageHandlers, WebrenderExternalImageRegistry,
WebrenderImageHandlerType,
};
#[cfg(all(
not(target_os = "windows"),
@ -82,7 +82,6 @@ use gaol::sandbox::{ChildSandbox, ChildSandboxMethods};
pub use gleam::gl;
use gleam::gl::RENDERER;
use ipc_channel::ipc::{self, IpcSender};
use ipc_channel::router::ROUTER;
pub use keyboard_types::*;
use log::{Log, Metadata, Record, debug, warn};
use media::{GlApi, NativeDisplay, WindowGLContext};
@ -302,8 +301,6 @@ impl Servo {
// messages to client may need to pump a platform-specific event loop
// to deliver the message.
let event_loop_waker = embedder.create_event_loop_waker();
let (compositor_proxy, compositor_receiver) =
create_compositor_channel(event_loop_waker.clone());
let (embedder_proxy, embedder_receiver) = create_embedder_channel(event_loop_waker.clone());
let time_profiler_chan = profile_time::Profiler::create(
&opts.time_profiling,
@ -311,6 +308,12 @@ impl Servo {
);
let mem_profiler_chan = profile_mem::Profiler::create();
let (compositor_sender, compositor_receiver) = ipc::channel().expect("ipc channel failure");
let compositor_proxy = CompositorProxy {
sender: compositor_sender,
event_loop_waker: event_loop_waker.clone(),
};
let devtools_sender = if pref!(devtools_server_enabled) {
Some(devtools::start_server(
pref!(devtools_server_port) as u16,
@ -1007,34 +1010,6 @@ fn create_embedder_channel(
)
}
fn create_compositor_channel(
event_loop_waker: Box<dyn EventLoopWaker>,
) -> (CompositorProxy, CompositorReceiver) {
let (sender, receiver) = unbounded();
let (compositor_ipc_sender, compositor_ipc_receiver) =
ipc::channel().expect("ipc channel failure");
let cross_process_compositor_api = CrossProcessCompositorApi(compositor_ipc_sender);
let compositor_proxy = CompositorProxy {
sender,
cross_process_compositor_api,
event_loop_waker,
};
let compositor_proxy_clone = compositor_proxy.clone();
ROUTER.add_typed_route(
compositor_ipc_receiver,
Box::new(move |message| {
compositor_proxy_clone.send(CompositorMsg::CrossProcess(
message.expect("Could not convert Compositor message"),
));
}),
);
(compositor_proxy, CompositorReceiver { receiver })
}
#[allow(clippy::too_many_arguments)]
fn create_constellation(
config_dir: Option<PathBuf>,
@ -1071,11 +1046,11 @@ fn create_constellation(
);
let system_font_service = Arc::new(
SystemFontService::spawn(compositor_proxy.cross_process_compositor_api.clone()).to_proxy(),
SystemFontService::spawn(compositor_proxy.cross_process_compositor_api()).to_proxy(),
);
let (canvas_create_sender, canvas_ipc_sender) = CanvasPaintThread::start(
compositor_proxy.cross_process_compositor_api.clone(),
compositor_proxy.cross_process_compositor_api(),
system_font_service.clone(),
public_resource_threads.clone(),
);

135
components/shared/compositing/lib.rs
View file

@ -7,7 +7,6 @@
use std::fmt::{Debug, Error, Formatter};
use base::id::{PipelineId, WebViewId};
use crossbeam_channel::{Receiver, Sender};
use embedder_traits::{
AnimationState, EventLoopWaker, MouseButton, MouseButtonAction, TouchEventResult,
};
@ -22,7 +21,6 @@ use webrender_api::DocumentId;
pub mod display_list;
pub mod rendering_context;
use core::fmt;
use std::collections::HashMap;
use std::sync::{Arc, Mutex};
@ -43,11 +41,7 @@ use webrender_api::{
/// Sends messages to the compositor.
#[derive(Clone)]
pub struct CompositorProxy {
pub sender: Sender<CompositorMsg>,
/// Access to [`Self::sender`] that is possible to send across an IPC
/// channel. These messages are routed via the router thread to
/// [`Self::sender`].
pub cross_process_compositor_api: CrossProcessCompositorApi,
pub sender: IpcSender<CompositorMsg>,
pub event_loop_waker: Box<dyn EventLoopWaker>,
}
@ -58,24 +52,14 @@ impl CompositorProxy {
}
self.event_loop_waker.wake();
}
}
/// The port that the compositor receives messages on.
pub struct CompositorReceiver {
pub receiver: Receiver<CompositorMsg>,
}
impl CompositorReceiver {
pub fn try_recv_compositor_msg(&mut self) -> Option<CompositorMsg> {
self.receiver.try_recv().ok()
}
pub fn recv_compositor_msg(&mut self) -> CompositorMsg {
self.receiver.recv().unwrap()
pub fn cross_process_compositor_api(&self) -> CrossProcessCompositorApi {
CrossProcessCompositorApi(self.sender.clone())
}
}
/// Messages from (or via) the constellation thread to the compositor.
#[derive(IntoStaticStr)]
#[derive(Deserialize, IntoStaticStr, Serialize)]
pub enum CompositorMsg {
/// Alerts the compositor that the given pipeline has changed whether it is running animations.
ChangeRunningAnimationsState(WebViewId, PipelineId, AnimationState),
@ -108,32 +92,6 @@ pub enum CompositorMsg {
/// WebDriver mouse move event
WebDriverMouseMoveEvent(WebViewId, f32, f32),
/// Messages forwarded to the compositor by the constellation from other crates. These
/// messages are mainly passed on from the compositor to WebRender.
CrossProcess(CrossProcessCompositorMessage),
}
pub struct SendableFrameTree {
pub pipeline: CompositionPipeline,
pub children: Vec<SendableFrameTree>,
}
/// The subset of the pipeline that is needed for layer composition.
#[derive(Clone)]
pub struct CompositionPipeline {
pub id: PipelineId,
pub webview_id: WebViewId,
}
impl Debug for CompositorMsg {
fn fmt(&self, formatter: &mut Formatter) -> Result<(), Error> {
let string: &'static str = self.into();
write!(formatter, "{string}")
}
}
#[derive(Deserialize, Serialize)]
pub enum CrossProcessCompositorMessage {
/// Inform WebRender of the existence of this pipeline.
SendInitialTransaction(WebRenderPipelineId),
/// Perform a scroll operation.
@ -193,31 +151,29 @@ pub enum CrossProcessCompositorMessage {
GetAvailableScreenSize(WebViewId, IpcSender<DeviceIndependentIntSize>),
}
impl fmt::Debug for CrossProcessCompositorMessage {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::AddImage(..) => f.write_str("AddImage"),
Self::GenerateFontKeys(..) => f.write_str("GenerateFontKeys"),
Self::AddSystemFont(..) => f.write_str("AddSystemFont"),
Self::SendInitialTransaction(..) => f.write_str("SendInitialTransaction"),
Self::SendScrollNode(..) => f.write_str("SendScrollNode"),
Self::SendDisplayList { .. } => f.write_str("SendDisplayList"),
Self::HitTest(..) => f.write_str("HitTest"),
Self::GenerateImageKey(..) => f.write_str("GenerateImageKey"),
Self::UpdateImages(..) => f.write_str("UpdateImages"),
Self::RemoveFonts(..) => f.write_str("RemoveFonts"),
Self::AddFontInstance(..) => f.write_str("AddFontInstance"),
Self::AddFont(..) => f.write_str("AddFont"),
Self::GetClientWindowRect(..) => f.write_str("GetClientWindowRect"),
Self::GetScreenSize(..) => f.write_str("GetScreenSize"),
Self::GetAvailableScreenSize(..) => f.write_str("GetAvailableScreenSize"),
}
impl Debug for CompositorMsg {
fn fmt(&self, formatter: &mut Formatter) -> Result<(), Error> {
let string: &'static str = self.into();
write!(formatter, "{string}")
}
}
#[derive(Deserialize, Serialize)]
pub struct SendableFrameTree {
pub pipeline: CompositionPipeline,
pub children: Vec<SendableFrameTree>,
}
/// The subset of the pipeline that is needed for layer composition.
#[derive(Clone, Deserialize, Serialize)]
pub struct CompositionPipeline {
pub id: PipelineId,
pub webview_id: WebViewId,
}
/// A mechanism to send messages from ScriptThread to the parent process' WebRender instance.
#[derive(Clone, Deserialize, Serialize)]
pub struct CrossProcessCompositorApi(pub IpcSender<CrossProcessCompositorMessage>);
pub struct CrossProcessCompositorApi(pub IpcSender<CompositorMsg>);
impl CrossProcessCompositorApi {
/// Create a new [`CrossProcessCompositorApi`] struct that does not have a listener on the other
@ -228,18 +184,13 @@ impl CrossProcessCompositorApi {
}
/// Get the sender for this proxy.
pub fn sender(&self) -> &IpcSender<CrossProcessCompositorMessage> {
pub fn sender(&self) -> &IpcSender<CompositorMsg> {
&self.0
}
/// Inform WebRender of the existence of this pipeline.
pub fn send_initial_transaction(&self, pipeline: WebRenderPipelineId) {
if let Err(e) = self
.0
.send(CrossProcessCompositorMessage::SendInitialTransaction(
pipeline,
))
{
if let Err(e) = self.0.send(CompositorMsg::SendInitialTransaction(pipeline)) {
warn!("Error sending initial transaction: {}", e);
}
}
@ -252,7 +203,7 @@ impl CrossProcessCompositorApi {
point: LayoutPoint,
scroll_id: ExternalScrollId,
) {
if let Err(e) = self.0.send(CrossProcessCompositorMessage::SendScrollNode(
if let Err(e) = self.0.send(CompositorMsg::SendScrollNode(
webview_id,
pipeline_id,
point,
@ -271,7 +222,7 @@ impl CrossProcessCompositorApi {
) {
let (display_list_data, display_list_descriptor) = list.into_data();
let (display_list_sender, display_list_receiver) = ipc::bytes_channel().unwrap();
if let Err(e) = self.0.send(CrossProcessCompositorMessage::SendDisplayList {
if let Err(e) = self.0.send(CompositorMsg::SendDisplayList {
webview_id,
display_list_descriptor,
display_list_receiver,
@ -306,9 +257,7 @@ impl CrossProcessCompositorApi {
) -> Vec<CompositorHitTestResult> {
let (sender, receiver) = ipc::channel().unwrap();
self.0
.send(CrossProcessCompositorMessage::HitTest(
pipeline, point, flags, sender,
))
.send(CompositorMsg::HitTest(pipeline, point, flags, sender))
.expect("error sending hit test");
receiver.recv().expect("error receiving hit test result")
}
@ -316,9 +265,7 @@ impl CrossProcessCompositorApi {
/// Create a new image key. Blocks until the key is available.
pub fn generate_image_key(&self) -> Option<ImageKey> {
let (sender, receiver) = ipc::channel().unwrap();
self.0
.send(CrossProcessCompositorMessage::GenerateImageKey(sender))
.ok()?;
self.0.send(CompositorMsg::GenerateImageKey(sender)).ok()?;
receiver.recv().ok()
}
@ -328,19 +275,14 @@ impl CrossProcessCompositorApi {
descriptor: ImageDescriptor,
data: SerializableImageData,
) {
if let Err(e) = self.0.send(CrossProcessCompositorMessage::AddImage(
key, descriptor, data,
)) {
if let Err(e) = self.0.send(CompositorMsg::AddImage(key, descriptor, data)) {
warn!("Error sending image update: {}", e);
}
}
/// Perform an image resource update operation.
pub fn update_images(&self, updates: Vec<ImageUpdate>) {
if let Err(e) = self
.0
.send(CrossProcessCompositorMessage::UpdateImages(updates))
{
if let Err(e) = self.0.send(CompositorMsg::UpdateImages(updates)) {
warn!("error sending image updates: {}", e);
}
}
@ -353,10 +295,7 @@ impl CrossProcessCompositorApi {
if keys.is_empty() && instance_keys.is_empty() {
return;
}
let _ = self.0.send(CrossProcessCompositorMessage::RemoveFonts(
keys,
instance_keys,
));
let _ = self.0.send(CompositorMsg::RemoveFonts(keys, instance_keys));
}
pub fn add_font_instance(
@ -366,7 +305,7 @@ impl CrossProcessCompositorApi {
size: f32,
flags: FontInstanceFlags,
) {
let _x = self.0.send(CrossProcessCompositorMessage::AddFontInstance(
let _x = self.0.send(CompositorMsg::AddFontInstance(
font_instance_key,
font_key,
size,
@ -375,15 +314,11 @@ impl CrossProcessCompositorApi {
}
pub fn add_font(&self, font_key: FontKey, data: Arc<IpcSharedMemory>, index: u32) {
let _ = self.0.send(CrossProcessCompositorMessage::AddFont(
font_key, data, index,
));
let _ = self.0.send(CompositorMsg::AddFont(font_key, data, index));
}
pub fn add_system_font(&self, font_key: FontKey, handle: NativeFontHandle) {
let _ = self.0.send(CrossProcessCompositorMessage::AddSystemFont(
font_key, handle,
));
let _ = self.0.send(CompositorMsg::AddSystemFont(font_key, handle));
}
pub fn fetch_font_keys(
@ -392,7 +327,7 @@ impl CrossProcessCompositorApi {
number_of_font_instance_keys: usize,
) -> (Vec<FontKey>, Vec<FontInstanceKey>) {
let (sender, receiver) = ipc_channel::ipc::channel().expect("Could not create IPC channel");
let _ = self.0.send(CrossProcessCompositorMessage::GenerateFontKeys(
let _ = self.0.send(CompositorMsg::GenerateFontKeys(
number_of_font_keys,
number_of_font_instance_keys,
sender,