Commit Graph

118 Commits

Author SHA1 Message Date
Narfinger
870576f948 devtools: Implement MallocSizeOf for DevtoolsInstance (#42478)
This implements MallocSizeOf for DevtoolsInstance. Major changes:
- Newtype for ActorRegistry because AtomicRefCell<HashMap<String,
Arc<dyn Actor>>> did not like mallocsizeof (even with trait bound on
Actor)
- Implement MallocSizeOf for BTreeSet.
- Implement MallocSizeOf of 0 for AtomicU32 and TcpStream
- Ignore a couple of MallocSizeof for http::Method, http::HeaderMap and
json::Value

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: Compilation is the test.
Fixes: Part of addressing https://github.com/servo/servo/issues/42453

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2026-02-10 17:32:47 +00:00
Narfinger
c324141fb4 base: This cleans up some old unneeded ignore annotation for MallocSizeOf and updates some descriptions (#42483)
We implemented many more MallocSizeOf tests (even if some such as
channels are zero).
Meaning we can not ignore more of it making the code cleaner.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: Compilation is the test.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2026-02-09 17:34:03 +00:00
Josh Matthews
872b7ba485 net: Convert blocking embedder communication to async (#41965)
#41857 exposed some more code in the net crate that performed blocking
communication with the embedder and could prevent other networking tasks
from running. To address that, we need the net code to perform async
receive operations, which requires passing tokio channels to the
embedder.

However, the current embedding message design puts all messages in the
same enum and requires that they are serializable. Embedder messages
from the network do not require this property, since they run in the
same process as the embedder. Therefore, this PR creates a new
EmbedderProxy structure that is generic over the message, allowing each
component of Servo to use a embedder message type that is specific to
that component.

The final benefit of this set of changes is that the embedder messages
for a particular crate can now live in the crate itself (since the only
crate that depends on it is the servo crate), not in the shared
`embedding_traits` crate. This hugely reduces the amount of code that
needs to be rebuilt when changing these messages, enabling much faster
incremental builds for those changes.

Testing: Strictly refactoring; existing test coverage is sufficient.
Fixes: #41958

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
2026-01-21 19:49:01 +00:00
shuppy
c2530a49ee Plumb accessibility tree updates from layout to embedder (#41924)
this patch adds some new methods and messages that allow layout to send
the embedder [accessibility tree
updates](https://docs.rs/accesskit/0.22.0/accesskit/struct.TreeUpdate.html):

- layout —[ ScriptThreadMessage::AccessibilityTreeUpdate ]→ script
- script —[ EmbedderMsg::AccessibilityTreeUpdate ]→ libservo
- libservo —[ WebViewDelegate::notify_accessibility_tree_update() ]→
servoshell
- servoshell —[ PlatformWindow::notify_accessibility_tree_update() ]→
servoshell
- servoshell —[ Gui::notify_accessibility_tree_update() ]→ servoshell

Testing: none yet, no functional change
Fixes: part of #4344

---------

Signed-off-by: delan azabani <dazabani@igalia.com>
Co-authored-by: Luke Warlow <lwarlow@igalia.com>
Co-authored-by: Alice Boxhall <alice@igalia.com>
2026-01-16 12:32:08 +00:00
eri
8cf4955731 devtools: Correctly cache console messages (#41895)
Fix caching before the console is opened and stop sending messages
prematurely.

Fix line numbers not showing in console messages because of a missing
`rename_all`.

Remove `getCachedMessages` in favour of sending a list of messages as a
reply to the `watchResources` for `console-message`/`error-message` in
the watcher.

Remove `startListeners` and `stopListeners`. These are legacy methods of
watching properties before the watcher actor. It is preferred to enable
properties in `supported_resources` in the watcher than to use these
messages.

Remove `clearMessagesCache`, only `clearMessagesCacheAsync` seems to be
used now. Add a reply to `clearMessagesCacheAsync`.

Simplify a bit the structs for console messages and prefer serde's
annotations to manual serialization. Merge `handle_console_message` and
`handle_page_error`, and improve the usability of `ConsoleResource`.

Fix some fields in console messages. We are missing `source_id` for now.
This will be easier to add after better support for source actors. We
are also missing stack traces.

| Before | After |
| --- | --- |
| ![Console message list starting at 5 and counting up, showing the file
location but not the line
number](https://github.com/user-attachments/assets/b21159b4-1a95-46aa-9337-0004a922837c)
| ![Console message list starting at 1, showing both the file location
and line number. It says "Connected here" at message number
4](https://github.com/user-attachments/assets/f8ea1a7c-9262-4fa2-a882-cad35af9c2dc)
|

Testing: Manual testing
Fixes: #26666

---------

Signed-off-by: eri <eri@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2026-01-15 21:41:07 +00:00
Narfinger
46011ff50c Script: Convert routed_promise to GenericCallback (#41380)
This changes routed_promise to use the GenericCallback functionality.
This mostly effected WebGPU but also Clipboard and Memory Reporting.

We also added a GenericCallback::new_blocking() functionality which
produces a callback and a channel
which then can be blocked on. This was used a couple of times in the
code.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: This should not change functionality.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2026-01-09 10:09:45 +00:00
Narfinger
1b8d1bf63c libservo: Stop exporting ipc-channel for gamepad responders and use callbacks (#41412)
With this we stop exporting ipc-channel in libservo and switch to
GenericChannel/GenericCallback.

Testing: Generic Channels are tested all over the place.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2026-01-06 16:57:02 +00:00
aquaThirsty
d808cc15d0 change #[allow]s to #[expect]s (#41635)
Changed most #[allow]s to #[expect]s, mainly for
clippy::too_many_arguments

Removed unfulfilled expectations

This is my first opensource contribution, so please let me know if
anything should
be done differently.

Testing: Refactor
Part of: #40838

---------

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
Signed-off-by: TimurBora <timurborisov5561@gmail.com>
Co-authored-by: Tim van der Lippe <TimvdLippe@users.noreply.github.com>
2026-01-03 10:54:27 +00:00
Narfinger
15aa6ee8c0 Base: Rename IpcSharedMemory to GenericSharedMemory (#41198)
In the future, servo components should depend on the generic channels in
base instead of IpcChannels to correctly optimize for multiprocess vs
non-multiprocess mode.
This reexports IpcSharedMemory as GenericSharedMemory in GenericChannel
and changes all dependencies on it.

Currently this is only a type/name change and does not change
functionality. But in the future we would want want to use non-ipc
things for the data.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>

Testing: This changes types and does not need testing.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2025-12-31 13:07:59 +00:00
atbrakhi
ae6f56f194 Separate console.clear() from ConsoleLogLevel (#41495)
Separate `console.clear()` from `ConsoleLogLevel`. See
https://github.com/servo/servo/pull/41311#discussion_r2622642820

Testing: Tested locally. Unfortunately in DevTools tests we do not cover
console tab

Signed-off-by: atbrakhi <atbrakhi@igalia.com>
2025-12-23 14:27:04 +00:00
Mukilan Thiyagarajan
2ccd9f54ad libservo: Let UserContentManager be per WebView and add basic support for mutations. (#41352)
This change moves the `UserContentManager` abstraction from the
`ServoBuilder` to `WebViewBuilder` so that embedders can inject content
for each `WebView` independently. It also adds basic support for runtime
mutations to the `UserContentManager` API. Only adding new scripts is
currently supported, but future changes will add support for both other
mutations such as removal of scripts and addition & removal of
stylesheets. Future changes could also optimize the way mutations are
propagated to `ScriptThread`s by sending just the "delta" rather than
the whole `UserContents` structure for each mutation.

The `UserContentManager` now becomes just a convenient handle for the
embedders to invoke the mutation API while the actual management of the
manager's content is handled by the Constellation. The mutations are
relayed to the constellation via messages. The change also separates the
serialized version containg the user contents into a new `UserContent`
structure so that the API cannot be misused.

Testing: New unit tests have been added for the different scenarios
involving UserContentManager.

---------

Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
2025-12-23 06:15:01 +00:00
WaterWhisperer
6623cc1dbb feat: gamepad feature flag (#41451)
Put the Gamepad API and its supporting infrastructure behind a `gamepad`
feature flag. This allows embedders to opt-out of gamepad support at
compile time to save on binary size and reduce dependencies.

Testing:
1. `./mach build -d` (Gamepad enabled by default)
2. `cargo build -p servoshell --no-default-features --features
"libservo/clipboard,js_jit,max_log_level,webgpu"` (Gamepad Disabled)
3. `cargo build -p servoshell --features "gamepad,webxr,..."` (Gamepad &
WebXR Enabled)

Fixes: #40897

Signed-off-by: WaterWhisperer <waterwhisperer24@qq.com>
2025-12-21 13:18:06 +00:00
atbrakhi
ba1122b4f5 Add ServoDelegate and WebViewDelegate methods for Console API (#41351)
Route console messages through the embedding API instead of printing
directly, giving embedders control over console output handling.

Testing: Should be covered by exsisting tests
Fixes: #41145

Signed-off-by: atbrakhi <atbrakhi@igalia.com>
2025-12-17 19:06:27 +00:00
atbrakhi
f3488b25a8 Move devtools_traits::LogLevel to embedder_traits (#41311)
This PR moves devtools_traits::LogLevel to embedder_traits in
preparation of upcoming work on creating a ServoDelegate and
WebViewDelegate method for Console API output. Also see
https://github.com/servo/servo/issues/41145

Testing: only moves code, no functional change
Fixes: part of https://github.com/servo/servo/issues/41145

Signed-off-by: atbrakhi <atbrakhi@igalia.com>
2025-12-16 10:38:30 +00:00
Martin Robinson
824f551f03 Rename IOCompositor to Paint (#41176)
For a long time, the "Compositor" hasn't done any compositing. This is
handled by WebRender. In addition the "Compositor" does many other
tasks. This change renames `IOCompositor` to `Paint`.

`Paint` is Servo's paint subsystem and contains multiple `Painter`s.
This change does not rename the crate; that will be done in a
followup change.

Testing: This just renames types and updates comments, so no new tests
are necessary.

---------

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-12-10 15:09:49 +00:00
Narfinger
3321438da8 Documentation: Add documentation for EmbedderMsg to clarify (#41032)
EmbedderMsg go towards the Embedder. We clarify this.

Testing: Just a doc comment.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2025-12-03 15:20:57 +00:00
Martin Robinson
cf8c67df92 libservo: Finish the SimpleDialog API (#40982)
Finish exposing the `SimpleDialog` API in libservo, abstracting away the
response senders into structures with methods. In addition, add a
default behavior so that embedders do not have to explicitly send a
reponse when dialogs are ignored. This makes the API much harder to
misuse.

Finally, the WebDriver API for setting the prompt dialog entry
field is corrected to actually set that value rather than the message.
This makes sense as part of this change as the type safety of the
structures makes setting the message (the old, wrong behavior) harder
 to implement.

Testing: This causes a WebDriver conformance test to start passing.

---------

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>
2025-12-02 08:20:49 +00:00
Jan Varga
0899b87dd4 Fix inconsistent strum dependencies and imports (#40907)
The `scripts_traits` crate was the only crate depending on `strum` with
the
`derive` feature. This accidentally allowed other crates to import strum
macros via `strum::` without declaring their own dependency on
`strum_macros`,
causing compilation issues when running `./mach test-unit -p net`.

This PR makes the imports consistent across the code base by:
- replacing all `strum_macro::` imports with `strum::` imports
- removing strum_macro dependencies
- adding derive feature to the strum workspace

Testing: Unit tests continue to pass

Signed-off-by: Jan Varga <jvarga@igalia.com>
2025-11-26 21:37:55 +00:00
Tim van der Lippe
69030f583a libservo: Notify embedder of protocol handler updates (#40653)
This implements step 2 of the web-facing API's.
Now, the embedder receives a notification whether
a webpage wants to register/unregister a protocol
handler. They can't do anything with it yet, that's for a follow-up PR.
But locally testing shows the
following debug log:

```
pid:35180 Requesting to Register for scheme web+test with url https://web-platform.test:8443/html/webappapis/system-state-and-capabilities/the-navigator-object/%s
```

Part of #40615

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
2025-11-21 18:12:00 +00:00
Martin Robinson
36031e22f2 compositing: Make RefreshDriver per-RenderingContext (#40738)
Instead of having a global `RefreshDriver` for all of Servo, let each
`RenderingContext` have its own `RefreshDriver`. This allows for things
like per-monitor `RefreshDriver`s and helps to ensure that multiple
`BaseRefreshDriver`s can be created for the same `RefreshDriver`.

Testing: This shouldn't change behavior and thus is covered by existing
tests.

---------

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>
2025-11-19 14:31:25 +00:00
Martin Robinson
5494995e01 libservo: Add ContextMenuElementInformation to for the context menu API (#40607)
This new data structure allows passing more information when popping up
context menus. It's possible in the future that it will be adapted into
a more generic "hit test result" type API ala WebKit, but for now, this
is probably
enough.

Testing: This change includes new API test assertions.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-11-17 15:53:43 +00:00
Martin Robinson
1e4feeaa0d script: Add context-based context menu options (#40501)
Add context menu options for images, links, and editable text areas. In
addition add the ability to show menu options that are disabled. This
also improves the visual style of the context menu in egui as part of
supporting disabled options.

Testing: This has been manually tested, but we could we should be able
to
easily add unit tests when enriching the API with information about the
active element under context menus.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Rakhi Sharma <atbrakhi@igalia.com>
2025-11-11 11:03:41 +00:00
atbrakhi
ad8c81d634 servoshell: Implement context menu in servoshell (#40434)
This PR adds context menu support with clickable menu items in the
Minibrowser. The menu appears on right click and supports basic
navigation actions (Back, Forward, Reload).


Testing: We already have tests for ContextMenu in WebView API test.

Signed-off-by: atbrakhi <atbrakhi@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2025-11-08 11:11:09 +00:00
Narfinger
3bfd107686 net: Do not implement Serialize/Deserialize for RasterImage and introduce`SharedRasterImage (#40459)
RasterImage is now not seralizeable and backed by Vec<u8> storage. Add a
new struct `SharedRasterImage` that allows serializeing. This can be
constructed from RasterImage. This introduces some more copying but I
think the tradeoff is ok. Newly introduced copies are for favicon
response to the embedder and EmbedderNotifications.

Testing: Should not change functionality, so covered by existing tests.
Fixes: https://github.com/servo/servo/issues/39626 and related issues.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2025-11-07 16:49:32 +00:00
WaterWhisperer
241bff962d Change some #[allow]s to #[expect]s (#40458)
Removes some unneeded lints.

Testing: Refactor
Part of: #40383

Signed-off-by: WaterWhisperer <waterwhisperer24@qq.com>
2025-11-06 12:31:48 +00:00
Martin Robinson
2c77d9d8a1 libservo: Integrate context menu into the show_embedder_control API (#40402)
This PR integrates showing context menus into the
`WebViewDelegate::show_embedder_control` API. In addition,
`ContextMenuItem` and `ContextMenuAction` data types are exposed which
abstract away the different components of the context menu. Later
changes will implement this API for servoshell as well as add
element-specific actions such as "Select All" and "Copy Image URL".

Testing: This change adds a WebView API test.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: atbrakhi <atbrakhi@igalia.com>
2025-11-04 21:08:04 +00:00
Sam
53d8c59e77 cargo: Bump Rust to 1.91 (#39471)
Rust 1.90 uses lld by default on linux, which should improve link time
and memory usage (I personally override ld with lld globally). And
because of miscompilations we observed on 1.90 we need to skip to 1.91.

Testing: Existing tests.
try run: https://github.com/sagudev/servo/actions/runs/18951980580

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
2025-10-30 21:14:10 +00:00
atbrakhi
f2c9bb6cc7 libservo: Allow passing device or page pixels as scroll delta (#40267)
This change allows the embedder to pass scroll deltas in either page
pixels or device pixels. In addition, it makes it so that device pixels
are never stored in LayoutVector2D when processing scroll events, which
was very confusing.


Testing: Current tests should cover these changes

Signed-off-by: atbrakhi <atbrakhi@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2025-10-29 16:22:31 +00:00
Mukilan Thiyagarajan
2a52a86f10 libservo: Use the embedder control API for simple dialogs (#40239)
This is part of a series of changes to unify the different APIs we have
currently for requesting the embedder to display UI elements.

This patch doesn't change how the script requests the dialogs to be
displayed, it only switches the webview delegate method that gets
invoked in response to the request from script. The change also adds an
`EmbedderControlId` field to the simple dialogs, but these are not
currently used. They exist only to satify the calls to `id()` method of
the `EmbedderControl` enum.

Testing: Added new unit tests to validate that the dialogs are
displayed.

Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
2025-10-29 09:12:28 +00:00
Martin Robinson
bd4c5a2085 libservo: Expose WebViewPoint / WebViewRect and use them for the API (#40223)
This change exposes two new data types in the API, which allow embedders
to supply coordinates in either page pixels or device pixels. In
particular, WebDriver wants to give coordiantes to the API in page
pixels. This prevents the embedder from having to do these conversions
and makes it harder to misuse the API.

Testing: This should fix WebDriver conformance tests that are run in
headed mode.
Fixes: #40152

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Rakhi Sharma <atbrakhi@igalia.com>
2025-10-29 07:15:34 +00:00
Martin Robinson
8be7ec73fd pixels: Split Snapshot into SharedSnapshot and Snapshot (#40136)
This splits `Snapshot` into two structs:

- `Snapshot`: A non-serializable owned image buffer that might contain
  either shared memory or a `Vec<u8>`. When mutated the shared memory
  version is converted into a `Vec<u8>` avoiding a copy of the data
  until absolutely necessary.
- `SharedSnapshot`: A serialzable version of `Snapshot` that contains
  only shared memory and is suitable for sending across IPC channels.
  This version is cheaply convertible from and to owned `Snapshot`s as
  long as the source is also a shared memory `Snapshot`.

In addition, it does copyless conversions of `RasterImage` into
`Snapshot`s (including for frame offsets in animated images). Finally,
there are a few minor changes to try harder not to have to do a
`transform()` operation.

Testing: This should not change observable behavior, so is covered by
existing
tests. It should come with a mild performance improvement and open up
the
opportunity for others.
Fixes: #36594.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-10-26 15:03:30 +00:00
Martin Robinson
868793e175 libservo: Merge input method activation into the EmbedderControl API (#40014)
Input methods are very similar to other kinds of embedder controls such
as file selection boxes, so merge them into the same libservo API. This
simplfiies the API surface a bit.

Testing: This change comes with a new unit test.

---------

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-10-24 12:09:31 +00:00
JoeDow
547dd23574 libservo: Allow embedders to drive frame updates via RefreshDriver trait (#39072)
Currently, the `RefreshDriver` creates a timer thread by default to
limit the frame rate of animations to within 120fps. However, some
platforms have already integrated `VSYNC` and even support `LTPO`,
making the refresh rate of the current `RefreshDriver` mismatched with
the display refresh rate of the platform. The main idea of this PR is to
introduce the `BeginFrameSource` and `BeginFrameSourceObserver` types,
allowing `VSYNC` to be integrated into the RefreshDriver.

Testing: It's hard to test rendering rate but some manual tests show
that it takes effect on OHOS platform, and other behavior is covered by
existing WPT tests.

---------

Signed-off-by: sharpshooter_pt <ibluegalaxy_taoj@163.com>
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2025-10-20 11:37:48 +00:00
shuppy
3fd9ebb849 script: Make file picker selection flow asynchronous (#39893)
Previously the `<input type=file>` would wait synchronously for file
selection
results from the embedder. This change moves that synchronous wait to
the
`FileManager` worker thread. The main benefit is that script is not
blocked waiting
for the embedder. The synchronous wait on the worker thread is not a
large issue
because it is run from a thread pool, though a later change could also
remove
that synchronous wait.

In addition, the API surface for file selection changes a bit as there
is now a `dismiss`
method which differentiates between selecting no file and not making a
choice at
all.

Testing: Covered by exiting WPT, WebDriver conformance, and unit tests.

---------

Signed-off-by: delan azabani <dazabani@igalia.com>
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2025-10-20 07:33:11 +00:00
Martin Robinson
f004e69cd9 compositor: Remove the CompositorMsg::TouchEventProcessed message (#39811)
The renderer needs needs to know when touch events processing has
finished in the DOM in order to properly handle them. This was
previously done using the `CompositorMsg::TouchEventProcessed` message.
This message is now redudant with the general-purpose
`EmbedderMsg::InputEventHandled` message.

This change removes the former message and instead, has the
`TouchHandler` keep a `HashMap` of pending touch events which is uses to
finish their processing when they come back from script. The goal here
is reduce the number of messages sent and to keep the complexity of
touch handling more centered in the `TouchHandler`.

Testing: This should not change observable behavior, so is covered by
existing tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-10-17 13:51:04 +00:00
shuppy
0d57fcb3e6 libservo: Merge file selection dialog into EmbedderControls (#39859)
in #39709, we introduced a single “form control” or “embedder control”
delegate that requests the embedder’s input for &lt;select> and
&lt;input type="color"> elements.

this patch partially merges &lt;input type="file"> elements into that
new system, and renames “form controls” to “embedder controls” for
consistency.

internally we continue to use a separate code path where the embedder
directly communicates with the file manager thread. subsequent work will
make the messages asynchronous via the constellation and script thread,
like other embedder controls.

Testing: this is currently tricky to write an automated test for; we
expect to write a WebDriver test for this once we make the communication
asynchronous

---------

Signed-off-by: delan azabani <dazabani@igalia.com>
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2025-10-15 06:12:19 +00:00
shuppy
b88007c14b libservo: Allow Servo to hide embedder controls (#39763)
In some situations, web content may need to hide embedder controls. For
example, when focus shifts when a `<select>` box is open or when the
element showing the control is removed from the DOM. This change adds a
new API to hide embedder controls when that happens.

Testing: This change adds a new API test.

Signed-off-by: Delan Azabani <dazabani@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2025-10-14 07:56:33 +00:00
Martin Robinson
a7d9142978 libservo: Improve JavaScript evaluation error name and documentation (#39770)
Testing: this just changes a type name and adds documentation, so
doesn't need new tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-10-10 16:41:25 +00:00
Martin Robinson
35d4b1e937 script: Combine WebDriverJSError with JavaScriptEvaluationError and add the stack (#39647)
This change merges the WebDriver only `WebDriverJSError` with the API
`JavaScriptEvaluationError` and also allows passing `ErrorInfo`
information through to the API layer when possible. In addition, the
stack is added to `ErrorInfo` (but only in situations when evaluating
JavaScript code for WebDriver or via the API for performance reasons).

These changes allow much more useful error output when script execution
fails via WebDriver. Now the error message and source file line numbers
are printed by the test executor.

Testing: These changes should be reflected in the testing output.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-10-10 11:34:42 +00:00
Martin Robinson
12e5d1b05e libservo: Unify notifications to the embedder that input events are handled (#39720)
Servo currently has three ways of notifying the embedder that input
events have been processed.

1. `WebViewDelegate::notify_keyboard_event`: This is used to implement
   overridable keybindings in servoshell. It notifies the embedder when
   a keyboard event has been processed, but not "handled" by the engine.
2. WebDriver's command message senders and receivers, this is used to
   let WebDriver wait until events have been handled to continue with
   script execution.
3. Touch event processing notifications: This is used to serialize touch
   event processing.

This change unifies the first two things with a new
`WebViewDelegate::notify_input_event_handled` API. This API informs the
embedder (via a generated id) that an input event has finished
processing and what the result of the processing was.

This allows embedders to do other things with events once they have been
processed. For example, embedders might want to chain unconsumed events
up to parent widgets or to add support for overridable keybindings.

As part of this the `canceled` flag in script's `Event` data structure
is turned into a `bitflags` mirror of the new API type to describe the
result of event handling.

Testing: This shouldn't change observable behavior and is thus covered
by existing tests.
The new API is consumed by servoshell, which uses it for tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-10-10 07:48:06 +00:00
Martin Robinson
89dfb3ee49 libservo: Make FormControl responses completely asynchronous (#39709)
Before responses to `FormControl` requests were handled synchronous in
script (ie they would block the page). This change makes it so that they
are handled asynchronously, with their responses filtering back through
the Constellation. This should fix many WPT tests when run with
WebDriver.

Testing: There are some WebDriver-based test for this, but they do
not quite pass yet. More investigation is required, but this is
necessary to get them to pass.
Fixes: #39652
Fixes: #37013

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Delan Azabani <dazabani@igalia.com>
2025-10-08 09:06:17 +00:00
Martin Robinson
6ffc0cd482 libservo: Add a WebView::take_screenshot() API and use it for reftests (#39583)
This change adds a new API to the `WebView` for capturing screenshots.
This makes it possible to:

 - use the reftest waiting infrastructure via the API
   easily.
 - take more than a single screenshot in one Servo run.
 - take screenshots, but still paint the `WebView` normally prior
   to the moment that the screenshot is ready, instead of preventing
   all non-screenshot-ready paints while taking a screenshot.

In addition, the previous infrastructure, the `wait_for_stable_image`
option is removed completely.

Testing: This change is tested by the passing of the WPT tests,
as they commonly use the screenshot feature.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Delan Azabani <dazabani@igalia.com>
2025-09-30 11:39:47 +00:00
Euclid Ye
726b456120 webdriver: Focus WebView asynchronously (#39241)
#38160 added a webdriver-specific API to support waiting on focus
operations to complete. Later, #38243 added a unique id to track each
focus operation.

Back then we wait on focusing webview in webdriver hoping to improve
stability, but it does not matter as it turns out later. #39086 also
focuses browsing context asynchronously.

This PR would make webdriver's focusing-webview behaviour same as human
interaction.

Testing: 
[Before 1](https://github.com/yezhizhen/servo/actions/runs/17598288280),
[Before 2](https://github.com/yezhizhen/servo/actions/runs/17598289360),
[Before 3](https://github.com/yezhizhen/servo/actions/runs/17598290532)
[After 1](https://github.com/yezhizhen/servo/actions/runs/17598282988),
[After 2](https://github.com/yezhizhen/servo/actions/runs/17598280603),
[After 3](https://github.com/yezhizhen/servo/actions/runs/17589228530)

---------

Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
2025-09-10 07:36:53 +00:00
Jonathan Schwender
f4dd2960b8 Add direct script to embedder channel (#39039)
This PR **removes** `ScriptToConstellationMessage::ForwardToEmbedder`,
and replaces it with an explicit `ScriptToEmbedderChannel`. This new
channel is based on `GenericCallback` and in single-process mode will
directly send the message the to the embedder and wake it. In
multi-process mode, the message is routed via the ROUTER, since waking
is only possible from the same process currently. This means in
multi-process mode there are likely no direct perf benefits, since we
still need to hop the message over the ROUTER (instead of over the
constellation).
In single-process mode we can directly send the message to the embedder,
which should provide a noticable latency improvement in all cases where
script is blocked waiting on the embedder to reply.

This does not change the way the embedder receives messages - the
receiving end is unchanged.

## How was sending messages to the embedder working before?

1. Script wraps it's message to the embedder in
`ScriptToConstellationMessage::ForwardToEmbedder` and sends it to
constellation.
2. The [constellation event loop] receives the message in
[handle_request]
3. If deserialization fails, [an error is logged and the message is
ignored]
4. Since our message came from script, it is handle in
[handle_request_from_script]
5. The message is logged with trace log level
6. If the pipeline is closed, [a warning is logged and the message
ignored]
7. The wrapped `EmbedderMsg` [is forwarded to the embedder]. Sending the
message also invokes `wake()` on the embedder eventloop waker.

[constellation event loop]:
2e1b2e7260/components/constellation/constellation.rs (L755)

[handle request]:
2e1b2e7260/components/constellation/constellation.rs (L1182)

[an error is logged and the message is ignored]:
2e1b2e7260/components/constellation/constellation.rs (L1252)

[handle_request_from_script]:
https://github.com/servo/servo/blob/main/components/constellation/constellation.rs#L1590
 
[a warning is logged and the message ignored]:
2e1b2e7260/components/constellation/constellation.rs (L1599)

[is forwarded to the embedder]:
2e1b2e7260/components/constellation/constellation.rs (L1701)

Testing: Communication between Script and Embedder is extensive, so this
should be covered by existing tests.

Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
2025-09-02 06:33:44 +00:00
Jonathan Schwender
66d9f957e6 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>
2025-08-29 12:44:21 +00:00
Euclid Ye
3ac226e841 script: Support decomposing ShadowRoot from mozjs HandleValue (#38984)
- Add `ShadowRoot` to `JSValue` to avoid
`WebDriverJSError::UnknownType`, and
`JavaScriptEvaluationError::SerializationError` when execute JS from
embedder.
- Add unit test.
- Move [is_detached](https://w3c.github.io/webdriver/#dfn-is-detached)
to `fn is_detached` to be reused.
- Other random simplification.

Testing: WebDriver conformance tests.

---------

Signed-off-by: Euclid Ye <euclid.ye@huawei.com>
2025-08-28 04:31:06 +00:00
Simon Wülker
dcd25072d3 script: Load and rasterize favicons before passing them to the embedder (#38949)
Currently the embedding API only provides the embedder with the URL for
a favicon. This is not great, for multiple reasons:
* Loading the icon should happen according to the fetch spec which is
not easy for the embedder to recreate (consider CSP, timing information
etc)
* Rasterizing a svg favicon is not trivial

With this change, servo fetches and rasterizes the icon to a bitmap
which is then passed to the embedder.

Testing: I'm not sure how I can write tests for the embedding api. I've
tested the correctness manually using
https://github.com/servo/servo/pull/36680.
Prepares for https://github.com/servo/servo/pull/36680

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
2025-08-27 14:28:42 +00:00
Martin Robinson
4784ff0375 script: Ensure that leaving the WebView sets the cursor back to the default cursor (#38759)
This changes makes a variety of changes to ensure that the cursor is set
back to the default cursor when it leaves the `WebView`:

1. Display list updates can come after a mouse leaves the `WebView`, so
   when refreshing the cursor after the update, base the updated cursor
   on the last hovered location in the `DocumentEventHandler`, rather
   than the compositor. This allows us to catch when the last hovered
   position is `None` (ie the cursor has left the `WebView`).
2. When handling `MouseLeftViewport` events for the cursor leaving the
   entire WebView, properly set the
   MouseLeftViewport::focus_moving_to_another_iframe` on the input event
   passed to the script thread.
3. When moving out of the `WebView` entirely, explicitly ask the
   embedder to set the cursor back to the default.

Testing: This change adds a unit test verifying this behavior.
Fixes: #38710.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2025-08-22 07:49:56 +00:00
Euclid Ye
ec5872992b webdriver: Reuse JSValue as WebDriverJSValue (#38751)
After #38748, `WebDriverJSValue` is almost same as `JSValue`. Now we
turn "potentially merge into one in the future" into reality. The only
thing we should be cautious is to properly serialize `WebFrame`,
`WebWindow`, `WebElement` for WebDriver.

Testing: No regression. Some error is fixed previously by #38709 which
didn't update test :)
Binary size reduced by 134KB.

---------

Signed-off-by: Euclid Ye <euclid.ye@huawei.com>
2025-08-18 17:38:48 +00:00
Euclid Ye
ce9425f3e8 embedder: Remove Int variant from WebDriverJSValue (#38748)
According to
[spec](https://w3c.github.io/webdriver/#dfn-json-deserialize), we should
only care about
[Number](https://262.ecma-international.org/5.1/#sec-4.3.19) that is
f64.

This change also closes the gap between `JSValue` and `WebDriverJSValue`
and potentially merge into one in the future.

Testing: No regression. However, we have lots of TIMEOUT due to
https://github.com/servo/servo/pull/38622.

Signed-off-by: Euclid Ye <euclid.ye@huawei.com>
2025-08-18 04:39:52 +00:00