EmbedderMsg: port reply channels to GenericChannel (#39018)

This change ports all `EmbedderMsg` reply channels that don't use the
`ROUTER` to GenericChannel.
The remaining reply channels that use the router are blocked until
#38973 is merged.
This is a breaking change in the API between libservo and embedders.

Future work: A lot of the reply channels in this PR look like they
conceptually should be oneshot ipc channels. It might make sense to
provide a `OneshotGenericChannel` abstraction that encodes this.

Testing: No functional changes - covered by existing tests. None of the
channels changed here uses the Router
Part of #38912

---------

Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
This commit is contained in:
Jonathan Schwender 2025-08-29 14:44:21 +02:00 committed by GitHub
parent 89e1357c75
commit 66d9f957e6
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20 changed files with 107 additions and 95 deletions

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@ -8,9 +8,9 @@ use std::rc::Rc;
use crossbeam_channel::Receiver;
use dpi::PhysicalSize;
use embedder_traits::webdriver::WebDriverSenders;
use ipc_channel::ipc::IpcSender;
use log::{debug, error, info, warn};
use raw_window_handle::{RawWindowHandle, WindowHandle};
use servo::base::generic_channel::GenericSender;
use servo::base::id::WebViewId;
use servo::euclid::{Point2D, Rect, Scale, Size2D, Vector2D};
use servo::servo_geometry::DeviceIndependentPixel;
@ -95,7 +95,7 @@ struct RunningAppStateInner {
/// Modified by EmbedderMsg::WebViewFocused and EmbedderMsg::WebViewBlurred.
focused_webview_id: Option<WebViewId>,
context_menu_sender: Option<IpcSender<ContextMenuResult>>,
context_menu_sender: Option<GenericSender<ContextMenuResult>>,
/// Whether or not the animation state has changed. This is used to trigger
/// host callbacks indicating that animation state has changed.
@ -265,7 +265,7 @@ impl WebViewDelegate for RunningAppState {
fn show_context_menu(
&self,
_webview: WebView,
result_sender: IpcSender<ContextMenuResult>,
result_sender: GenericSender<ContextMenuResult>,
title: Option<String>,
items: Vec<String>,
) {