Commit Graph

12657 Commits

Author SHA1 Message Date
Ashwin Naren
2c96178ff1 geolocation: Support errorCallback (#42295)
Support `errorCallback` in geolocation position request functions and
throw the necessary errors.

Testing: Passes 3 more WPT tests
Fixes: Partially #38903

Signed-off-by: Ashwin Naren <arihant2math@gmail.com>
2026-02-03 02:33:39 +00:00
Simon Wülker
10563019bb script: Implement HTMLInputElement.alpha (#42293)
Testing: New tests start to pass

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
2026-02-02 23:38:45 +00:00
Tim van der Lippe
19c2f93cab script: Fix handling changes to relevant attributes for stylesheets (#42273)
We weren't removing stylesheets when we should be doing so. This most
notably happens when the stylesheet no longer has a href or its "rel"
changes.

The crash is also fixed, since the issue was that we were passing the
value of the attribute that was changed as if it were an href. However,
if we set the type attribute, then that's not the href.

To fix that, we now retrieve the href inside the method so we always
have the correct value.

Fixes #42259

---------

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
Signed-off-by: Tim van der Lippe <TimvdLippe@users.noreply.github.com>
2026-02-02 13:37:38 +00:00
Tim van der Lippe
e8aa7d51ba script: Set host for template content (#42276)
A template element should set the host of a DocumentFragment. However,
it didn't have a host yet. That's because ShadowRoot declares a host
attribute which returns Element, but its property is declared on
DocumentFragment.

Therefore, define the host on DocumentFragment instead and use it in all
relevant points for shadow roots. Then, update the pre-insert validity
check to use the correct host-including variant of inclusive ancestors.
Lastly, set the host of the template to wire it all up.

---------

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
2026-02-02 08:25:54 +00:00
TIN TUN AUNG
17f7c87088 script: add force option for assign-slottables for a tree (#42250)
In the case of node removal, if the subtree of the removed node contains
`<slot>` element, force traverse down to each `<slot>` element is needed
to reset the assignment of the slottables that currently being assigned
to the `<slot>` element. This changes add this force option to
`assign_slottables_for_a_tree`, and only set true to node removal.

Testing: Should be covered by current WPT test, [try
run](https://github.com/rayguo17/servo/actions/runs/21504337658)
Fixes: https://github.com/servo/servo/issues/35188
https://github.com/servo/servo/issues/42182

cc @TimvdLippe @simonwuelker @xiaochengh

---------

Signed-off-by: rayguo17 <tin.tun.aung1@huawei.com>
Signed-off-by: rayguo17 <rayguo17@gmail.com>
2026-02-02 07:25:13 +00:00
Simon Wülker
83bf475370 script: Support different colorspaces for <input type=color> (#42279)
This change adds support for the `colorspace` attribute on color inputs
and implements serialization of the input value accordingly.

The color picker from servoshell doesn't yet support non-rgb colorspaces
(and neither does the embedding API), so we convert to and from rgb when
communicating with the embedder.

Testing: New tests start to pass

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
2026-02-02 06:21:41 +00:00
Gregory Terzian
91ee834195 Indexeddb: connection lifecycle (#42082)
Implement the full connection lifecycle, from opening and potentially
upgrading a database, waiting on existing connections to close, firing
the versionchange and blocked events, and updating pending open requests
when connections close.

Testing: WPT
Fixes: Part of https://github.com/servo/servo/issues/40983

---------

Signed-off-by: gterzian <2792687+gterzian@users.noreply.github.com>
2026-02-02 06:14:27 +00:00
Simon Wülker
f822959d7e script: Add navigator.pdfViewerEnabled (#42277)
Servo doesn't have a pdf viewer, so we simply set the property to
`false`.

Testing: New tests start to pass

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
2026-02-01 20:58:06 +00:00
Simon Wülker
2204bb23eb script: Allow any valid CSS color for color input values (#42275)
Testing: New tests start to pass
Closes: https://github.com/servo/servo/issues/42117

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
2026-02-01 20:05:33 +00:00
WaterWhisperer
f405ddeaf7 script: Implement base-uri CSP check (#42272)
Testing: `./mach test-wpt /content-security-policy/base-uri`
Fixes: #42261

Signed-off-by: WaterWhisperer <waterwhisperer24@qq.com>
2026-02-01 17:03:23 +00:00
Sam
0f9f601eb9 script: Correctly handle Reflector with AssociatedMemory and remove associated memory in finalize instead of drop (#42271)
Reviewable per commits:

As noted in
https://github.com/servo/servo/pull/42180#discussion_r2749861902
transmuting `&Reflector<AssociatedMemory>` to `&Reflector<()>` will
ignore AssociatedMemory information and thus it will not remove extra
associated memory. By returning `&Reflector<Self::ReflectorType>` from
`DomObject::reflector()` we will preserve this information and thus
correctly handle cases with associated memory. We also do not need
`overrideMemoryUsage` in bindings.conf anymore. 🎉

Instead of removing associated memory in drop code we should do it as
part of finalizers, otherwise we have problems in nested (inherited)
structs, where drop is run for both parent and child, but we only added
associated memory for child (on init_reflector) which already included
size of parent. The only exception here is promise, because it is RCed
and not finalized.

Testing: Tested locally that it fixes speedometer.
Fixes #42269

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
2026-02-01 10:57:08 +00:00
Sam
6237aa4677 Merge DomObject proc-macro into #[dom_struct] (#42262)
DomObject derive should not be used standalone so let's just inline it
into dom_struct macro. This will help me with
https://github.com/servo/servo/issues/26488#issuecomment-3824301234

This should (I did not test) also improve compile times, because we do
one macro expansion less on dom_struct.

Testing: It compiles.

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
2026-01-31 18:06:25 +00:00
Euclid Ye
624e9b49e1 css: Enable registered custom properties with CSSOM but stay unanimatable (#42136)
Many websites use Tailwind CSS script which utilizes registered custom
properties.
This PR makes such websites look as expected, such as #42129.

Before: 
<img width="485" height="120" alt="image"
src="https://github.com/user-attachments/assets/428000b1-eed1-4f10-bbf8-eca9e7b630f5"
/>

After:
<img width="487" height="82" alt="image"
src="https://github.com/user-attachments/assets/ab016cbf-9c00-4bd8-adc8-be28f13e42e5"
/>


Testing: Updated existing WPT results.
Fixes: #42129
Fixes: #41417 

Stylo Companion: https://github.com/servo/stylo/pull/293

---------

Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
2026-01-31 14:11:35 +00:00
Martin Robinson
1900ebc447 script: Do not consider a node an ancestor of itself in Node::is_ancestor_of (#42263)
This change fixes a crash in options collections due to the fact that a
`<select>` element was being considered an ancestor of itself. This
regression likely introduced in #40776.

This change also fills in the specification text for
`HTMLOptionCollect::Add`.

Testing: This change adds a WPT crash test.
Fixes: #41080.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2026-01-31 10:22:23 +00:00
Tim van der Lippe
e5af3ee964 script: Fix timing of frozen base URL (#42255)
Make it runs at the correct time and then also performs checks for its
scheme. The CSP check is left for a follow-up PR.

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
2026-01-31 05:34:59 +00:00
Gae24
9c4d17e9e1 script: support JSON modules (#42138)
With import attributes enabled we can now support non javascript
modules, for now we are limited to json ones.
Switch `GlobalScope` `modulemap` to be keyed by the tuple url and
module's type.

Testing: Enabled a new directory, new tests should pass

---------

Signed-off-by: Gae24 <96017547+Gae24@users.noreply.github.com>
Signed-off-by: Josh Matthews <josh@joshmatthews.net>
Co-authored-by: Josh Matthews <josh@joshmatthews.net>
2026-01-31 01:18:51 +00:00
webbeef
58b56edf97 dom: reduce traversal in CompareDocumentPosition (#42260)
We can avoid doing 2 traversals and stop at the first matching child we
find. This ensures we are never doing the longest iteration.

Testing: covered by WPT

Signed-off-by: webbeef <me@webbeef.org>
2026-01-31 01:18:30 +00:00
Sam
8ed35f1ce9 script: Add basic memory pressure reporting to SpiderMonkey (#42180)
By reporting memory usage of rust objects back to SM it can trigger GC
sooner and release more memory (I hope that we could use this to avoid
OOB in webgpu in the future).

Currently we use simple `size_of::<DomStruct>() +
size_of::<Box<DomStruct>>()` but it's possible to override reported
memory with `update_memory_size(self, nbytes);` on reflector. This is
mostly useful for canvases and buffers which usually have large
associated data.

Testing: None, but I am wondering if we can connect this to
`about:memory`.
Fixes: #42168

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
2026-01-30 18:11:06 +00:00
Narfinger
db052c4990 script: Change some HashSets to FxHashSet (#42257)
This changes 3 occurences of HashSet to FxHashSet for speed
improvements:
- dom/notifications::pending_request_ids: Pending Request ids are
Uuid::new_v4, hence, not user assignable.
- script_thread: painters_generating_frames: These are pipeline ids and,
hence, ideal for FxHash.
- script_thread:: docs_with_no_blocking_loads: These are Dom<Document>
and their hash is the ptr address, so ideal for FxHash.

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

Testing: These do not change functionality.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2026-01-30 17:02:58 +00:00
Narfinger
8173d821be script/storage: Switch remaining instances of bincode to postcard (#42236)
Because of the deprecation of bincode we are switching to postcard
(which will already be used by ipc-channel).
This changes all usages to postcard.

Sadly there are still some dependencies using bincode, so we are
probably increasing the binary size.

Currently we do not modify the deny.toml because we have dependencies
that depend on bincode.

Testing: Compilation should be enough for test.

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2026-01-30 07:23:38 +00:00
minghuaw
611f3ef162 script: Ensure web fonts in shadow root stylesheets are downloaded (#42151)
Added calls to download web font from stylesheet when stylesheets are
added to shadow root.

Testing: Manual testing. Added a new WPT testcase

---------

Signed-off-by: Minghua Wu <michael.wu1107@gmail.com>
2026-01-30 02:14:43 +00:00
Domenico Rizzo
2c770c162c [26488] Refactors GPUCanvasContext to manage context dropping. (#42243)
Moves the `Drop` implementation for `GPUCanvasContext` to a new
`DroppableGPUCanvasContext` struct.

This ensures the context destruction logic is correctly handled, as the
`GPUCanvasContext` struct itself is a DOM struct and should not have a
drop implementation. This change aligns with the requirement that DOM
types should not implement Drop.

Testing: No tests added
Fixes: #26488

Signed-off-by: Domenico Rizzo <domenico.rizzo@gmail.com>
2026-01-29 18:02:31 +00:00
Luke Warlow
bd779d141a script: Add support for :open pseudo-class (#42195)
Add support for `:open` pseudo-class. This is supported on dialog,
details and select elements.


Stylo PR: servo/stylo#297
Testing: WPTs but also
`data:text/html,<select><option>123</option></select><style>:open {
background-color: red; }</style>`. There are some tests that now error,
these previously failed due to missing `:open` and now make it further
along hitting test_driver.send_keys() which causes them to error
Fixes: #41277.

---------

Signed-off-by: Luke Warlow <lwarlow@igalia.com>
2026-01-29 17:08:51 +00:00
Martin Robinson
d6197ee2f0 script: Clear layout data on shadow root during attachShadow (#42237)
When a node has `attachShadow()` successfully called on it, its
descendants are no longer in the flat tree. This change makes it so that
the layout data of these descendants is cleared during `attachShadow()`
so that the node is no longer considered to have a layout box.

Testing: This change includes a new WPT crash test.
Fixes: #42215.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2026-01-29 13:08:39 +00:00
Martin Robinson
9a48e7b9d5 base: When normalizing RopeIndex ensure it does not intersect a character (#42240)
When doing operations on `RopeIndex` that need to make slices of lines,
this change makes it so that the resulting index does not intersect a
character. This is important because Rust will panic if you attempt to
slice a string that way.

Testing: This change adds a WPT crash test and a `Rope` unit test.
Fixes: #42217.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2026-01-29 12:01:39 +00:00
Steven Novaryo
c90d7d0a64 script: Ensure UA shadow DOM is initialized on <textarea> bind to tree (#42233)
Ensure that the UA shadow DOM for `<textarea>` is initialized when we
are binding to a tree.

Testing: New WPT.
Fixes: #42231

---------

Signed-off-by: Jo Steven Novaryo <steven.novaryo@gmail.com>
2026-01-29 08:37:53 +00:00
Gae24
dfed00367a script: Enable module scripts import attributes (#42185)
While working on #42138 I found out that import attributes are an opt-in
feature, which can be enabled by `ContextOptionsRef`'s
`compileOptions_`.
This is likely the reason why `GetRequestedModuleSpecifier` wouldn't
fail.
Now we catch any `GetRequestedModuleSpecifier` exception and pass it to
`load_state`.

Testing: Covered by existing tests

---------

Signed-off-by: Gae24 <96017547+Gae24@users.noreply.github.com>
2026-01-29 07:46:02 +00:00
Andreu Botella
b0399561d6 layout: Support content: <image> on non-pseudo-elements (#41480)
Per CSS-CONTENT-3, one of the possible values of the `content` CSS
property is `<content-replacement>`, which evaluates to a single
`<image>`. This value is also allowed on regular elements, not just on
pseudo-elements, and it will make the element into a replaced element
representing the given image, discarding its contents.

This patch implements this in `traverse_element`: if the `display` value
is not `none` or `contents`, we first check whether the `contents`
property should make the element replaced, and if it shouldn't, then we
check whether the element itself is replaced or a widget.

Per the spec, an invalid image must be treated as representing a
transparent black image with zero natural width and height – in
particular, it must not show a broken image icon. We added the method
`ReplacedContents::zero_sized_invalid_image` to implement this.

This patch adds support for image URL references, but not for color
gradients, which are treated as invalid images. The reason for this is
that currently Servo does not support gradients in
`ReplacedContentKind`. This is left as a follow-up change.

Testing: Some of the existing `css/css-content/element-replacement*` WPT
tests now pass with this patch. We also added some new ones dealing with
replacing the document root.

Fixes: #41479

Signed-off-by: Andreu Botella <andreu@andreubotella.com>
2026-01-28 17:46:18 +00:00
eri
6e781aaf74 devtools: Remove unsupported serde annotations from shared/devtools.rs (#42219)
There were some `#[serde(untagged)]` and `#[serde(skip*)]` annotations
in the shared devtools types. These are needed for correct JSON
serialization when sending messages to Firefox, but they fail in
multiprocess mode since we are sharing them through the IPC channel with
bincode, which doesn't support certain serde tags.

The workaround is to keep all shared types free from problematic
annotations, and defining wrapping types that are only used in the
devtools crate.

One instance are console messages and page errors. They have been moved
to `console.rs`, with `shared/devtools` only keeping the parts that are
needed for communication between threads.

The other instance are auto margins. Now the final message is built in
`page_style.rs`.

Apologies since both of them were introduced by me, I wasn't aware that
we were limited by bincode in multiprocess mode. A warning has been
added to `shared/devtools` listing the problematic annotations that
shouldn't be used in this file.

Testing: `mach test-devtools` and manual testing using `--multiprocess`.
Fixes: #42170

Signed-off-by: eri <eri@igalia.com>
2026-01-28 15:48:59 +00:00
Luke Warlow
aad7424150 Update details to support ::details-content pseudo element. (#42107)
Update details to support `::details-content` pseudo element.

This is currently not element-backed but will support the basic styling.

This replaces the existing `::-servo-details-content` styling.

Testing: WPTs and manually using
https://demo.lukewarlow.dev/css-forms.html

<img width="159" height="66" alt="image"
src="https://github.com/user-attachments/assets/8e72e7f3-2b49-43c6-9a4e-dbea0586739e"
/>

Stylo PR: https://github.com/servo/stylo/pull/292

Signed-off-by: Luke Warlow <lwarlow@igalia.com>
2026-01-28 14:52:50 +00:00
Narfinger
d41bb930e1 painter: Insert a cache for animation with smarter updates (#41956)
This inserts a cache in painter that keeps data for animating images in
Painter.
We then can send cheap ImageUpdate::UpdateAnimation to just get the
required bytes from the cache.

There are some warts with the current design:
- ImageUpdate::AddImage only adds images in the cache that have the data
in SerializableImageData::Raw. Potentially there could be image
animations in other ways which then for a following
ImageUpdate::UpdateAnimation we do not have the data. We can probably
fix this on the sender side.

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

Testing: Tested on the usecase in
https://github.com/servo/servo/issues/41818 and WPT test here:
https://github.com/Narfinger/servo/actions/runs/21063721427
Fixes: https://github.com/servo/servo/issues/41818

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2026-01-28 14:07:27 +00:00
Steven Novaryo
45c39d7496 script: Notify PinchZoom resizes to ScriptThread's VisualViewport (#41754)
Continuing the implementation of `VisualViewport`, the resizing of
`PinchZoom` should be notified to `ScriptThread` to update the
`VisualViewport` interface and to fire the appropriate JS event. Top
level `Window`/`Pipeline` would have a `VisualViewport` interface that
mirrors the `PinchZoom` viewport, while nested `Window` would have a
default value that represent layout viewport of the relevant iframe. The
`VisualViewport` of an iframe is updated after each reflow that
calculate the rectangle of the iframe.

The updates of DOM's `VisualViewport` occurs immediately (instead of
waiting for the event loop like the viewport) but integrates with the
event loop for the JS events. This behavior would helps with the fact
that `VisualViewport` needs to be updated both when it is scrolled or
resized.

Testing: Existing WPTs and new unit test.
Part of: https://github.com/servo/servo/issues/41341

---------

Signed-off-by: Jo Steven Novaryo <steven.novaryo@gmail.com>
2026-01-28 09:33:55 +00:00
Josh Matthews
7358d73f7f script: Do not track outdated oustanding loads for stylesheets. (#42208)
The `HTMLLinkElement::pending_loads` field should only be used to track
outstanding loads for the current generation; any loads from previous
generations can be ignored. This avoids confusion about when to dispatch
load/error events. See
https://github.com/servo/servo/issues/42187#issuecomment-3808888585 for
more details about how the timing of multiple loads for the same
`<link>` element resulted in intermittent timeouts in one WPT test.

Testing: Intermittent failure did not appear within 75 runs; previously
reproduced within 15.
Fixes: #42187

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
2026-01-28 07:56:50 +00:00
Josh Matthews
81e4f28708 script: Use global's origin in Request constructor. (#42207)
There are subtle differences between a global's origin and its URL's
origin, and it's easy to hit them with special URLs like about:blank.
The code being replaced was written before we has separate origins for
globals.

Testing: Newly passing WPT test.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
2026-01-28 07:46:28 +00:00
Tim van der Lippe
c0b55a2c34 script: Add about_base_url (#42104)
We populate the required field for all relevant entrypoints
and set it to `document.base_url` when the url is `about:blank`
or `about:srcdoc`. In all other cases, it uses
`document.about_base_url`.

Testing: WPT
Fixes #41836

---------

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
2026-01-27 18:09:01 +00:00
Narfinger
caae16a8ba script: Fix cycle in TransmitBodyConnectHandler (#42183)
As described in the stop_reading method:
into_net_request_body constructs an ipc-channel sender and receiver
pair. The sender will be given to the TransmitBodyHandler which uses it
in various script callbacks.
On BodyChunkRequest::Done, previously we did not destroy the sender,
hence, did not destroy the receiver for this and keep the structure
alive in memory.
For safety we now destroy the sender in the BodyChunkRequest::Done (we
also take the IpcSenders and IpcSharedMemory when applicable).


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

Testing: Using the script from
https://github.com/servo/servo/issues/41202 we get less file descriptor
usage.
Fixes: This partially fixes https://github.com/servo/servo/issues/41202
but not completely.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
2026-01-27 17:11:49 +00:00
atbrakhi
e28a0f6d6c devtools: implement clearBreakpoint (#42154)
Add an event listener for `clearBreakpoint` to `debugger.js` and the
necessary glue to access it from the `devtools` crate.

Testing: `./mach test-devtools` and manual testing.
Fixes: Part of: https://github.com/servo/servo/issues/36027

---------

Signed-off-by: atbrakhi <atbrakhi@igalia.com>
Co-authored-by: eri <eri@igalia.com>
2026-01-27 15:46:54 +00:00
Tim van der Lippe
22df064c81 script: Fix render blocking stylesheet load fire ordering (#41973)
While adding various spec comments to the parts of `#the-end` (which are
scattered throughout the script crate), I stumbled upon the render
blocking stylesheets implementation. There was a HTML PR to make clear
when it should run and the corresponding WPT tests have been fixed.

Fixes #22715

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
2026-01-27 04:12:34 +00:00
Narfinger
8dfeaaf339 webgl: Move from IpcChannel to GenericChannel (#42033)
This moves WebGL component from IpcChannel to GenericChannel. Of note
are the following changes:
- Removal of WebGlSender and WebGlReceiver type alias. As we removed
them in a similar component earlier.
- Moving from IpcByteSender to IpcSender over serde_bytes::ByteBuf. I
think the tradeoff for easier reading is worth it.


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

Testing: Compilation and unit tests.

---------

Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
Co-authored-by: Sam <16504129+sagudev@users.noreply.github.com>
2026-01-26 18:04:13 +00:00
Martin Robinson
2a7d2780b3 fonts: Store shaping output per-character rather than per-code point (#42105)
This change is a reworking of the shaping code and simplification of the
`GlyphRun` data structure.

The shaper was written between 2012 and 2014 against an early version of
Rust. It was originally written to have a single glyph entry per UTF-8
code point. This is useful when you always need to iterate through
glyphs based on UTF-8 code points. Unfortunately, this required a
tri-level data structure to hold detailed glyphs and meant that CJK
characters took over 3x the memory usage of ASCII characters. In
addition, iterating through glyphs (the most common and basic operation
on shaped text) required doing a lookup involving a binary search for
detailed glyphs (ones that had large advances or mapped to more or less
than a single UTF-8 code point).

The new design of the `GlyphStore` is instead based on `chars` in the
input string. These are tracked during layout so that the resulting
glyph output can be interpreted relatively to its original character
offset in the containing IFC. We are already dealing with IFC text on a
per-character basis for a variety of reasons (such as text
transformation and whitespace collapse). In addition, we will now able
to
implement mapping between the character offsets before and after layout
transformations of the original DOM string.

Now the penalty of more complex glyph iteration is only paid when
transforming glyph offsets to character offsets. Currently this is only
done for selections and clicking in text boxes, both of which are much
less common than layout.

This change does not properly handle selections in RTL text, though
rendering and basic selection and visual movement works (though buggy).

It does not seem like this affects the performance of shaping based on
measurement using the text shaping performance counters. This likely
means that the performance of shaping is dominated on our machines by
HarfBuzz. We noticed no performance degradation in Speedometer when run
on a M3 Mac.

Followup work:
 - Properly handle selection in RTL text.
 - Support mapping from original DOM character offsets to offsets in
   layout after text transformation and whitespace collapse. This is now
   possible.

Testing: This causes some tests to pass and a few to fail. This is
likely
due to the fact that we are handling glyphs more consistently while
shaping. Of the new failures:
- `letter-spacing-bengali-yaphala-001.html`,
`letter-spacing-cursive-001.html`, `font-feature-settings-tibetan.html`
where passing before probably because we were not applying letter
spacing to detailed glyphs. These scripts should not have letter spacing
applied to them, because they are cursive -- which we never implemented
properly. It will be handled in a a followup.
- `shaping-arabic-diacritics-001.html`: This was a false pass. The tests
verifies that Arabic diacritics are applied to NBSP. This wasn't
happening before nor after this change, but the results matched anyway.
Now they don't, but before and after are equally broken.
 - 
Fixes: #216
Part of #35540.

---------

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>
2026-01-26 12:38:04 +00:00
Martin Robinson
4ad2e92b9c script: Handle when debugger global is active in DedicatedWorkerGlobalScope interrupt (#42159)
When interrupting `DedicatedWorkerGlobalScope` execution, handle the
case that the `DebuggerGlobalScope` is running its script by just
terminating. It seems that this happens sometimes when trusted types
terminates a worker script.

Testing: This should fix some flaky `expect` failure panics in trusted
types WPT tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
2026-01-26 11:45:05 +00:00
araya
2964846451 net/fetch: Improve HTTP fetch error handling for gzip content decompressions (#39438)
This PR fixes error handling in Servo's HTTP fetch implementations to
properly handle content decompression failures (e.g., bad gzip content)
by treating them as network errors as defined in WPT.

- Fixed some previously failing tests in bad-gzip-body.any.js that now
properly reject when consuming bodies with bad gzip content
  - Several fetch metadata tests now pass correctly

---------

Signed-off-by: araya <araya@araya.dev>
2026-01-26 11:05:33 +00:00
Sam
3047b9946f script: Remove AsVoidPtr and AsCCharPtrPtr traits (#42153)
We migrated most uses some years ago, so let's finally remove them. It's
more clear what we are doing if we inline stuff then hiding dangerous
cast behind trait.

Testing: Covered by WPT, try run:
https://github.com/sagudev/servo/actions/runs/21350967668

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
2026-01-26 10:47:35 +00:00
Steven Novaryo
cc56218b0c script: Update documentation and minor conformance improvement for Fullscreen API (#42068)
Improve the `requestFullscreen` and `exitFullscreen` spec conformance
and notes the todos with comments with issues.

Testing: Existing WPTs

---------

Signed-off-by: Jo Steven Novaryo <steven.novaryo@gmail.com>
2026-01-26 10:01:11 +00:00
Tim van der Lippe
13472304a5 script: Support blocking attribute for style and link elements (#42096)
Testing: WPT

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
Signed-off-by: Tim van der Lippe <TimvdLippe@users.noreply.github.com>
2026-01-26 09:12:38 +00:00
Thomas Cummings
ffb91ac4b1 script: Evict stale SVGs from image cache (#41675)
Parsed and vectorized representations of SVGs in the image cache are
never evicted when SVGs are updated, leading to stale SVGs staying in
the image cache alongside updated ones. This PR:
- adds a stringified uuid field to SVGSVGElement
- adds a map of `SVGSVGElement` uuid to `PendingImageId` in
`ImageCacheImpl`
- adds an optional argument for the uuid to
`ImageCacheImpl::rasterize_vector_image`, which, if provided, removes
any existing parsed svgs associated with the uuid and stores a new entry
of uuid -> `PendingImageId`
- implements `unbind_from_tree` on SVGSVGElement, which clears the
associated images/representations from the image_cache (from
`vector_images`, `rasterized_vector_images`, and `completed_loads`) as
well as from the layout image resolver image cache.

Testing: Each of the following documents should display their (very
flashy) content correctly and memory usage should stay constant
<details>
<summary>Changing SVGSVGElement</summary>

```

<svg height="100" width="100" xmlns="http://www.w3.org/2000/svg">
  <circle id="c" r="1" cx="50" cy="50" fill="red" />
</svg>
<script>
let c = document.querySelector("#c");
let r = 1;
setInterval(() => {
  r += 1;
  c.setAttribute("r", r.toString());
  let tmp = document.createTextNode("ignored");
  c.parentNode.appendChild(tmp);
  tmp.remove();
}, 100);
</script>

```

</details>
<details>
<summary>Unbinding SVGSVGElements</summary>

```

<div id="parent_div">
  <svg id="test" height="100" width="100" xmlns="http://www.w3.org/2000/svg">
    <circle id="c" r="10" cx="50" cy="50" fill="red" />
  </svg>
</div>
<script>
  let div = document.querySelector("#parent_div");
  let svg_html_string = div.innerHTML;
  let svg = document.querySelector("#test");
  let r = 10;
  setInterval(() => {
    svg.remove();
    div.innerHTML = svg_html_string;
    svg = document.querySelector("#test");
    let circle = document.querySelector("#c");
    r += 1;
    circle.setAttribute("r", r.toString());
  }, 100);
</script>

```

</details>
<details>
<summary>Unbinding SVGSVGElements (and rebinding the same SVG)</summary>

This didn't work until I also evicted the associated image from the
layout image resolver image cache and the image cache's
`completed_loads` on SVGSVGElement unbind, so it seems like a useful, if
a bit redundant, test.

```

<div id="parent_div">
  <svg id="test" height="100" width="100" xmlns="http://www.w3.org/2000/svg">
    <circle id="c" r="10" cx="50" cy="50" fill="red" />
  </svg>
</div>
<script>
  let div = document.querySelector("#parent_div");
  let svg_html_string = div.innerHTML;
  let svg = document.querySelector("#test");
  let r = 10;
  setInterval(() => {
    svg.remove();
    div.innerHTML = svg_html_string;
    svg = document.querySelector("#test");
  }, 100);
</script>

```

</details>

Fixes: #41070

---------

Signed-off-by: Tom Cummings <cummings.t287@gmail.com>
2026-01-26 06:02:50 +00:00
Gae24
047cb39fa9 script: Drop ModuleTree network_error and simplify pending fetches logic (#42127)
Since we use `NetworkError` just for logging reasons, we don't really
need to pass it around; instead lets follow spec more closely and pass a
`None` on network failures.
Make more explicit if a `modulemap` entry is currently fetching or
ready.

Testing: No functional change, covered by existing tests

---------

Signed-off-by: Gae24 <96017547+Gae24@users.noreply.github.com>
2026-01-26 05:43:12 +00:00
Euclid Ye
68f6dba669 webdriver: Test interactability for Element Clear (#42124)
Test interactability for Element Clear.

There is also a related spec change:
https://github.com/w3c/webdriver/pull/1943 to match the implementation
of vendors, and the reality.

Testing: New passing

---------

Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
2026-01-26 03:42:13 +00:00
WaterWhisperer
cf071d6c58 Expand set of permanent network failures to include all fetch preconditions (#42137)
Testing: `./mach test-wpt tests/wpt/tests/eventsource`
Fixes: #42092

Signed-off-by: WaterWhisperer <waterwhisperer24@qq.com>
2026-01-25 17:40:52 +00:00
hyuraku
a973178fa8 script: move stream-related files into script/dom/stream (#42010)
*Describe the changes that this pull request makes here. This will be
the commit message.*
Move stream file to script/dom/stream
part of https://github.com/servo/servo/issues/38901

Testing: *Describe how this pull request is tested or why it doesn't
require tests*
Fixes: *Link to an issue this pull requests fixes or remove this line if
there is no issue*

---------

Signed-off-by: hyuraku <32809703+hyuraku@users.noreply.github.com>
Signed-off-by: Taym Haddadi <haddadi.taym@gmail.com>
Co-authored-by: Taym Haddadi <haddadi.taym@gmail.com>
2026-01-25 16:18:52 +00:00