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

..

docs

doc: fix broken link to UnrootedMustRoot plugin (#36198)

2025-03-28 10:23:41 +00:00

dom

devtools: Remove unsupported serde annotations from shared/devtools.rs (#42219)

2026-01-28 15:48:59 +00:00

layout_dom

layout: Support content: <image> on non-pseudo-elements (#41480)

2026-01-28 17:46:18 +00:00

resources

html: Render media controls without ready state precondition (#40456)

2025-11-08 19:57:59 +00:00

animation_timeline.rs

script: Limit public exports. (#34915)

2025-01-10 08:19:19 +00:00

animations.rs

Change some #[allow]s to #[expect]s (#40458)

2025-11-06 12:31:48 +00:00

body.rs

script: Fix cycle in TransmitBodyConnectHandler (#42183)

2026-01-27 17:11:49 +00:00

build.rs

script: copy include! files from script_bindings to script's OUT_DIR (#36384)

2025-04-08 19:22:24 +00:00

Cargo.toml

Rename compositing and compositing_traits to paint and paint_api (#42066)

2026-01-24 09:17:35 +00:00

clipboard_provider.rs

Script: Convert routed_promise to GenericCallback (#41380)

2026-01-09 10:09:45 +00:00

conversions.rs

suppress build warnings when disabling webgpu and webxr (#35379)

2025-02-08 08:16:21 +00:00

css.rs

script: Create CSS parsing helpers to simplify ParserContext setup (#41566)

2025-12-31 06:27:52 +00:00

devtools.rs

devtools: Remove unsupported serde annotations from shared/devtools.rs (#42219)

2026-01-28 15:48:59 +00:00

document_collection.rs

Replace allow(crown::unrooted_must_root) with expect(crown::unrooted_must_root) (#41815)

2026-01-10 08:05:49 +00:00

document_loader.rs

script: Introduce concept of a fetch group (#41423)

2025-12-29 12:50:30 +00:00

drag_data_store.rs

change #[allow]s to #[expect]s (#41635)

2026-01-03 10:54:27 +00:00

fetch.rs

net/fetch: Improve HTTP fetch error handling for gzip content decompressions (#39438)

2026-01-26 11:05:33 +00:00

iframe_collection.rs

script: Notify PinchZoom resizes to ScriptThread's VisualViewport (#41754)

2026-01-28 09:33:55 +00:00

image_animation.rs

painter: Insert a cache for animation with smarter updates (#41956)

2026-01-28 14:07:27 +00:00

indexeddb.rs

script: Take &CStr instead of &str in get_property_jsval (#42132)

2026-01-24 22:29:11 +00:00

init.rs

script: Wrap remaining unsafe code and enable unsafe_op_in_unsafe_fn (#40499)

2025-11-08 14:27:35 +00:00

layout_image.rs

script: Some failed requests should record resource timing entries (#41804)

2026-01-14 13:20:12 +00:00

lib.rs

script: remove more unused code (#42081)

2026-01-22 15:12:09 +00:00

links.rs

script: Add about_base_url (#42104)

2026-01-27 18:09:01 +00:00

messaging.rs

script: Notify PinchZoom resizes to ScriptThread's VisualViewport (#41754)

2026-01-28 09:33:55 +00:00

microtask.rs

script: move stream-related files into script/dom/stream (#42010)

2026-01-25 16:18:52 +00:00

mime.rs

chore: remove repetitive word in comment (#39948)

2025-10-17 08:48:23 +00:00

module_loading.rs

script: Drop ModuleTree network_error and simplify pending fetches logic (#42127)

2026-01-26 05:43:12 +00:00

navigation.rs

Expose nested browsing context status in RequestClient (#41661)

2026-01-05 16:28:45 +00:00

network_listener.rs

Expand set of permanent network failures to include all fetch preconditions (#42137)

2026-01-25 17:40:52 +00:00

realms.rs

script: Obtain &mut JSContext at the start of the script and pass it down to msg handlers (#41564)

2025-12-30 18:19:41 +00:00

routed_promise.rs

Script: Convert routed_promise to GenericCallback (#41380)

2026-01-09 10:09:45 +00:00

script_module.rs

script: Drop ModuleTree network_error and simplify pending fetches logic (#42127)

2026-01-26 05:43:12 +00:00

script_mutation_observers.rs

script: Fix MutationObserver to use Dom instead of DomRoot (#40608)

2025-11-13 19:14:30 +00:00

script_runtime.rs

Replace allow(crown::unrooted_must_root) with expect(crown::unrooted_must_root) (#41815)

2026-01-10 08:05:49 +00:00

script_thread.rs

script: Notify PinchZoom resizes to ScriptThread's VisualViewport (#41754)

2026-01-28 09:33:55 +00:00

script_window_proxies.rs

change #[allow]s to #[expect]s (#41635)

2026-01-03 10:54:27 +00:00

security_manager.rs

script: Some failed requests should record resource timing entries (#41804)

2026-01-14 13:20:12 +00:00

serviceworker_manager.rs

Rename IOCompositor to Paint (#41176)

2025-12-10 15:09:49 +00:00

stylesheet_loader.rs

script: Do not track outdated oustanding loads for stylesheets. (#42208)

2026-01-28 07:56:50 +00:00

stylesheet_set.rs

Upgrade Stylo to 2025-11-01 (#40522)

2025-11-11 02:59:38 +00:00

task_manager.rs

Implement fetchLater (#39547)

2025-10-02 07:51:19 +00:00

task_queue.rs

Replace Hash Algorithm in HashMap/Set with FxHashMap/Set for simple types (#39166)

2025-09-09 08:33:46 +00:00

task_source.rs

Fix inconsistent strum dependencies and imports (#40907)

2025-11-26 21:37:55 +00:00

task.rs

script: Pass &mut JSContext to tasks (#41756)

2026-01-08 07:49:27 +00:00

test.rs

script: Add a Rope type and use it for TextInput (#41650)

2026-01-06 14:52:08 +00:00

textinput.rs

fonts: Store shaping output per-character rather than per-code point (#42105)

2026-01-26 12:38:04 +00:00

timers.rs

Replace allow(crown::unrooted_must_root) with expect(crown::unrooted_must_root) (#41815)

2026-01-10 08:05:49 +00:00

unminify.rs

Script: Lazily transform the DOMString into Rust String instead of immediately. (#39509)

2025-10-09 18:18:03 +00:00

webdriver_handlers.rs

webdriver: Test interactability for Element Clear (#42124)

2026-01-26 03:42:13 +00:00

window_named_properties.rs

Change some #[allow]s to #[expect]s (#40458)

2025-11-06 12:31:48 +00:00

xpath.rs

script: Finish converting all error message enum variants to Option<String> (#40750)

2025-11-20 06:20:47 +00:00