Commit graph

45 commits

Author SHA1 Message Date
Emilio Cobos Álvarez
b6d9b77a15 style: Speed up selector matching with already-lowercase local name selectors
This makes relatively simple changes so that we check lowercase-ness of
local-name selectors first. If so, we don't need to check whether we're
an HTML element in an HTML document, which requires a fair bit of
pointer-chasing.

Differential Revision: https://phabricator.services.mozilla.com/D163627
2023-11-04 08:17:09 +01:00
Emilio Cobos Álvarez
f14f1fa440 style: fix invalidation of sibling combinators in different slots
This extends the code to deal with sibling invalidation to handle the
case where the flat tree doesn't match the DOM tree. In the test-case
for example, dom is:

  * details
    * summary id=a
    * summary

But flat tree is:

  * details
  * slot
    * summary id=a
  * slot
    * summary

Differential Revision: https://phabricator.services.mozilla.com/D159150
2023-11-03 08:59:49 +01:00
Emilio Cobos Álvarez
4878422c93 style: Simplify selector flags setup even more
In my investigation for bug 1766439, I am digging into why selector
matching regressed.

It doesn't help that the selector-matching code is instantiated a
gazillion times (so there's a ton of copies of the relevant functions).

This was needed in the past because we had different ways of setting the
selector flags on elements, but I unified that recently and now we only
need to either set them or not. That is the kind of thing that
MatchingContext is really good for, so pass that instead on
MatchingContext creation.

Differential Revision: https://phabricator.services.mozilla.com/D145428
2023-08-16 17:46:41 +02:00
Oriol Brufau
d6ae8dc112
Revert "Backport several style changes from Gecko (5) (#30099)" (#30104)
This reverts commit 8e15389cae.
2023-08-16 06:24:42 +00:00
Oriol Brufau
8e15389cae
Backport several style changes from Gecko (5) (#30099)
* style: Simplify selector flag setting now that flag setting is atomic

These bits are write-only, actually, and we don't even need to read
them.

Differential Revision: https://phabricator.services.mozilla.com/D141888

* Further changes required by Servo

* style: Support media queries for dynamic-range and video-dynamic-range

This is a stub that only matches "standard" for all platforms.

Differential Revision: https://phabricator.services.mozilla.com/D141053

* style: Remove :-moz-lwtheme-{brighttext,darktext}

They are just convenience for :root[lwthemetextcolor="light"] (and dark,
respectively), but they generally shouldn't be used for dark mode
theming. In the past it was the only way to do it but now we have
prefers-color-scheme.

While at it, change lwthemetextcolor to be "lwtheme-brighttext" for
consistency with similar code we have for popups etc, and move it to
_setDarkModeAttributes.

While at it, remove layout.css.moz-lwtheme.content.enabled (which is
false always, we unshipped these from content successfully).

Differential Revision: https://phabricator.services.mozilla.com/D141593

* style: layout.css.moz-locale-dir.content.enabled

We successfully removed these from content in bug 1740230 (Firefox 96).

Differential Revision: https://phabricator.services.mozilla.com/D141727

* style: Really honor background-color: transparent in HCM even for form controls

I forgot we were doing this "revert-or-initial" shenanigans (which is needed
for stuff like link colors to be honored), so we need to early-return.

Use a more explicit test rather than a reftest for this.

Differential Revision: https://phabricator.services.mozilla.com/D142063

* style: Ignore unchanged property for scroll-linked effect detector

I think this is cleaner.

Differential Revision: https://phabricator.services.mozilla.com/D141737

* style: Allow to derive Parse/ToCss/SpecifiedValueInfo on bitflags

We keep getting this pattern of properties that have a set of joint and
disjoint flags, and copy-pasting or writing the same parsing and
serialization code in slightly different ways.

container-type is one such type, and I think we should have a single way
of dealing with this, thus implement deriving for various traits for
bitflags, with an attribute that says which flags are single vs mixed.

See docs and properties I ported. The remaining ones I left TODOs with,
they are a bit trickier but can be ported with some care.

Differential Revision: https://phabricator.services.mozilla.com/D142418

* Further changes required by Servo

* style: Implement parsing / serialization for container{,-type,-name} CSS properties

Two noteworthy details that may seem random otherwise:

 * Moving values around in nsStyleDisplay is needed so that the struct
   remains under the size limit that we have to avoid jumping allocator
   buckets.

 * All the test expectation churn is because tests depend on
   `container-type: size` parsing to run, and now they run. Tests for
   the relevant bits I implemented are passing, with the only exception
   of some `container-name-computed.html` failures which are
   https://github.com/w3c/csswg-drafts/issues/7181. Safari agrees with
   us there.

Other notes when looking at the spec and seeing how it matches the
implementation:

 * `container` syntax doesn't match spec, but matches tests and sanity:
   https://github.com/w3c/csswg-drafts/issues/7180

 * `container-type` syntax doesn't _quite_ match spec, but matches tests
   and I think it's a spec bug since the definition for the missing
   keyword is gone:
   https://github.com/w3c/csswg-drafts/issues/7179

Differential Revision: https://phabricator.services.mozilla.com/D142419

* style: Remove assert that doesn't hold for text-decorations because of presentation hints

MANUAL PUSH: Orange fix CLOSED TREE

* style: Migrate `<th>` `text-align` behaviour from presentation hint to UA CSS

Differential Revision: https://phabricator.services.mozilla.com/D142494

* style: Deduplicate TokenList values faster

Remember whether we have already de-duplicated them once and avoid doing
that again.

This is an alternative approach that doesn't add overhead to attribute
setting in the general case.

Differential Revision: https://phabricator.services.mozilla.com/D142813

* style: Inherit used color-scheme from embedder <browser> elements

This allows popups and sidebars to use the chrome preferred
color-scheme.

This moves the responsibility of setting the content-preferred color
scheme to the appropriate browsers to the front-end (via tabs.css).

We still return the PreferredColorSchemeForContent() when there's no
pres context (e.g., for display:none in-process iframes). We could
potentially move a bunch of the pres-context data to the document
instead, but that should be acceptable IMO as for general web content
there's no behavior change in any case.

Differential Revision: https://phabricator.services.mozilla.com/D142578

* Further changes required by Servo

* style: Add basic @container rule parsing and boilerplate

For now parse a MediaFeatureCondition. That needs being made more
specific, but that is probably worth its own patch.

Differential Revision: https://phabricator.services.mozilla.com/D143192

* Further changes required by Servo

* style: Tweak cascade priority to split writing-mode and font properties

This makes the worst case for cascade performance slightly more
expensive (4 rather than three declaration walks), but my hope is that
it will make the average case faster, since the best case is now just
two walks instead of three, and writing mode properties are somewhat
rare.

This needs a test, but needs to wait until the writing-mode dependent
viewport units land (will wait to land with a test).

Differential Revision: https://phabricator.services.mozilla.com/D143261

* style: Implement new {small,large,dynamic} viewport units

Differential Revision: https://phabricator.services.mozilla.com/D143252

* Further changes required by Servo

* style: Implement new *vi and *vb units

Differential Revision: https://phabricator.services.mozilla.com/D143253

* style: Implement prefers-contrast: custom and let prefers-contrast ride the trains

Differential Revision: https://phabricator.services.mozilla.com/D143198

* style: Join servo style threads during shutdown

I was unable to change the BLOOM_KEY field to no longer be leaked, as the TLS
is also accessed on the main thread, which is not exited before the leak
checker shuts down.

Differential Revision: https://phabricator.services.mozilla.com/D143529

* Further changes required by Servo

* style: Fix visited handling after bug 1763750

Before bug 1763750, we unconditionally called compute_writing_mode,
which got the writing mode from the cascade mode for visited styles.

However after that bug we only do that if we apply any
writing-mode-related property.

We could just call compute_writing_mode unconditionally, but instead it
seems better to skip all that work for visited cascade and reuse the
mechanism introduced in that bug to only apply the visited-dependent
longhands.

We assert that all visited-dependent longhands are "late" longhands, so
as to also avoid applying the font group and such.

Differential Revision: https://phabricator.services.mozilla.com/D143490

* style: Clean-up viewport unit resolution a bit

I should've caught this when reviewing the new viewport units but alas :-)

Differential Revision: https://phabricator.services.mozilla.com/D143856

* style: Implement `contain: inline-size`

Differential Revision: https://phabricator.services.mozilla.com/D143501

* style: Simplify media query evaluation code a bit

This patch:

  * Removes generic <ident> support for media features. These were used
    for some privileged media features but are no longer used.

  * Simplifies media feature getters by shifting the responsibility of
    dealing with RangeOrOperator to the caller. This makes it easier to
    implement container-query / mediaqueries-4 syntax, and also cleans up
    the code a bunch.

There should be no change in behavior.

Differential Revision: https://phabricator.services.mozilla.com/D144051

* Further changes required by Servo

* style: Move transitions and animations to nsStyleUIReset

This mostly just moves code around, to minimize potential behavior
changes. There are some cleanups that we should try to do long term
(this "have an array with n different counts" is pretty weird).

But for now this should unblock people.

The destination struct (nsStyleUIReset) was chosen mainly because it's
small and non-inherited, and it doesn't seem like a worse place than
nsStyleDisplay.

Differential Revision: https://phabricator.services.mozilla.com/D144183

* Further changes required by Servo

* style: Make media feature evaluation take a computed::Context

This has no behavior change right now, but will simplify sharing code
with container queries.

Container queries will have container information in the
computed::Context (this is necessary anyways for container-based units),
so this avoids having to have different code for media and container
queries.

Differential Revision: https://phabricator.services.mozilla.com/D144152

* Further changes required by Servo

* style: Add scroll() to animation-timeline for style system

scroll() is defined in the spec proposal, and there is a temporary spec:
https://drafts.csswg.org/scroll-animations-1/rewrite#scroll-notation.

The spec is still under development, so we don't drop the orignal
scroll-timeline at rule. Instead, we add a new scroll() notation to
animation-timeline, and support both syntax for now.

Differential Revision: https://phabricator.services.mozilla.com/D143417

* style: Tweak contain bitflag definition order to avoid static constructors

This has no behavior change otherwise. The STRICT definition depended on
SIZE, which was defined later. That's fine in Rust, but in C++ it causes
the initialization to be dynamic because it doesn't have the definition
of SIZE yet (ugh).

This is the fix for the regression, though the following patch turns on
constexpr support in cbindgen, which would've caught this at build-time,
and guarantees that we don't have extra static constructors.

Differential Revision: https://phabricator.services.mozilla.com/D144316

* style: Move some of the media query code to a more generic queries module

No behavior change, just moving and renaming files.

The code in the "queries" module will be shared between @media and
@container.

@media has some other code that container queries doesn't need like
MediaList / MediaType / etc. That remains in the media_queries module.

Differential Revision: https://phabricator.services.mozilla.com/D144435

* Further changes required by Servo

* style: cleanup animation-name

Make the representation the same between Gecko and Servo code. This will
enable further clean-ups in the future.

Make serialization be correct, serializing as identifier unless it's an
invalid one (in which case we serialize as a string).

This changes our stringification behavior in the specified style, but
now it will match the computed style and be more correct over-all.

Differential Revision: https://phabricator.services.mozilla.com/D144473

* Further changes required by Servo

* style: Add support for parsing container-query-specific features

There are some mediaqueries-5 features that we still don't support and
explain the remaining failures in at-container-{parsing,serialization}.

Differential Revision: https://phabricator.services.mozilla.com/D144446

* Further changes required by Servo

* style: Introduce Optional<T> to represent optional values in the style system

cross-fade() was kinda doing this in its own way with PercentOrNone, but
since now we have more use-cases for this we should probably make this a
slightly more general solution.

I added some convenience APIs, but they're unused as of this patch so
let me know if you want them gone.

Differential Revision: https://phabricator.services.mozilla.com/D144831

* style: Fix insertRule with layer statements before imports

We need to do a bit more nuanced check because @layer statements might
go before imports.

Differential Revision: https://phabricator.services.mozilla.com/D144996

* style: Factor out parsing the query feature name

No behavior change.

Differential Revision: https://phabricator.services.mozilla.com/D145229

* style: Refactor media feature expression representation in preparation to support multi-range syntax

No behavior change.

Depends on D145229

Differential Revision: https://phabricator.services.mozilla.com/D145230

* style: Implement media feature expression multi-range syntax

Differential Revision: https://phabricator.services.mozilla.com/D145231

* style: Remove proton places tooltip code

There's nobody working on it, and tooltips should hopefully be nice
enough after recent changes (bug 1765423).

Having it enabled causes artifacts like bug 1767815 comment 3. We can
always rescue this from hg history if needed.

Differential Revision: https://phabricator.services.mozilla.com/D145621

* style: Simplify selector flags setup even more

In my investigation for bug 1766439, I am digging into why selector
matching regressed.

It doesn't help that the selector-matching code is instantiated a
gazillion times (so there's a ton of copies of the relevant functions).

This was needed in the past because we had different ways of setting the
selector flags on elements, but I unified that recently and now we only
need to either set them or not. That is the kind of thing that
MatchingContext is really good for, so pass that instead on
MatchingContext creation.

Differential Revision: https://phabricator.services.mozilla.com/D145428

* Further changes required by Servo

* style: Track @container condition id in style rules

Much like we track layer rules. Consolidate that "containing rule state
we pass down while building the cascade data" in a single struct that we
can easily restore.

For now, do nothing with it. I want to land this patch separately
because it touches the Rule struct and CascadeData rebuilds, which both
are performance sensitive.

Its layout shouldn't change because I also changed LayerId to be a u16
(this shouldn't matter in practice, since LayerOrder is already a u16).

Differential Revision: https://phabricator.services.mozilla.com/D145243

* Further changes required by Servo

* style: Fix layer statement rules with multiple layer names

MANUAL PUSH: Trivial orange fix CLOSED TREE.

* style: Implement piecewise linear function

Differential Revision: https://phabricator.services.mozilla.com/D145256

* style: Convert specified value tests to compile-time tests

These were written at a time where std::mem::size_of wasn't a `const fn` in
Rust.

Now that it is, we can make these tests live in the style crate, and the build
not to compile if they fail.

Differential Revision: https://phabricator.services.mozilla.com/D146103

* Further changes required by Servo

* style: Move size of tests to compile-time tests in the style crate

Same reasoning as the previous commit.

Differential Revision: https://phabricator.services.mozilla.com/D146104

* Further changes required by Servo

* style: Lint and 32-bit build fix.

MANUAL PUSH: Bustage fix CLOSED TREE

* style: Implement 'update' media feature

Differential Revision: https://phabricator.services.mozilla.com/D146338

* style: Clean up unused -moz-window-shadow values

After bug 1768278 and bug 1767815 there's no more uses of the cliprounded value
in the tree (also it causes artifacts on HiDPI screens so we probably don't
want new usages).

The "sheet" value is unused, and the other values other than "default" and
"none" are only derived from "default", so they don't need to be exposed in the
style system.

Differential Revision: https://phabricator.services.mozilla.com/D145821

* style: More container queries plumbing

Provide container information in computed::Context and use it to resolve
the container queries.

This still fails a lot of tests because we are not ensuring that layout
is up-to-date when we style the container descendants, but that's
expected.

Differential Revision: https://phabricator.services.mozilla.com/D146478

* Further changes required by Servo

* style: Ensure options in listbox selects are not stacking contexts by default

We could have a different property or something but this seems
reasonable as well probably.

Differential Revision: https://phabricator.services.mozilla.com/D146994

* style: Implement overflow-clip-margin: <length>

Differential Revision: https://phabricator.services.mozilla.com/D146432

* style: Change order of container shorthand

Since the initial value of container-type is an open issue [1],
I'm leaving that as-is for now.

[1] https://github.com/w3c/csswg-drafts/issues/7202

Differential Revision: https://phabricator.services.mozilla.com/D147338

* style: Make modal dialog code more generic, and make it apply to fullscreen too behind a pref

For now, don't turn it on by default yet, because I want to wait for
more discussion in https://github.com/w3c/csswg-drafts/issues/6965 and
so on. But I think the code is simple enough to land this.

Differential Revision: https://phabricator.services.mozilla.com/D147295

* style: Cache computed styles objects display: none subtrees

This reuses our existing undisplayed style generation, but in a
per-document rather than per-nsComputedDOMStyle object, which means that
we can avoid re-resolving styles of elements in display: none subtrees
much more often.

This brings the test-case in the bug to par with other browsers or
better, and is much simpler than the initial approach I tried back in
the day.

Differential Revision: https://phabricator.services.mozilla.com/D147547

* Further changes required by Servo

* style: Parse scroll-snap-stop style and propagate it to APZ side

Depends on D146147

Differential Revision: https://phabricator.services.mozilla.com/D145850

* style: Update color-mix() syntax to match the current spec

Test expectation updates for this in the latest patch of the bug.

Differential Revision: https://phabricator.services.mozilla.com/D147002

* Further changes required by Servo

* style: Make the color interpolation code more generic

It's really piece-wise premultiplied interpolation, with a special-case
for hue, so centralize the implementation.

Differential Revision: https://phabricator.services.mozilla.com/D147003

* style: Implement more color-mix() color-spaces

We had code to convert between these and the latest draft supports them so...

Differential Revision: https://phabricator.services.mozilla.com/D147004

* style: Fix color-mix() percentage normalization

Differential Revision: https://phabricator.services.mozilla.com/D147005

* style: Fix hue adjustment to match the spec

The value to sum is tau, not pi. This was caught by some tests, see
https://drafts.csswg.org/css-color/#shorter

Differential Revision: https://phabricator.services.mozilla.com/D147006

* style: Do hue interpolations in degrees rather than radians. r=barret

This gives us a bit more precision.

Differential Revision: https://phabricator.services.mozilla.com/D147007

* style: Improve Percentage -> LengthPercentage conversion

This doesn't change behavior because we only use them for images that
have no clamping.

Depends on D147008

Differential Revision: https://phabricator.services.mozilla.com/D147511

* style: Remove some dead vibrancy code

Drive-by cleanup.

Differential Revision: https://phabricator.services.mozilla.com/D147698

* style: Fix warnings about whitelist/blocklist functions being deprecated in bindgen 0.59

Differential Revision: https://phabricator.services.mozilla.com/D147695

* style: Update style to arrayvec 0.7

Differential Revision: https://phabricator.services.mozilla.com/D147476

* style: Update style to uluru 3.0

Differential Revision: https://phabricator.services.mozilla.com/D147477

* style: Remove -moz-scrollbar-thumb-proportional

It unconditionally matches on all platforms, so it's not returning any useful information.

Depends on D147689

Differential Revision: https://phabricator.services.mozilla.com/D147690

* style: Use ColorMix for interpolated colors in the computed style rather than ComplexColorRatios

This among other things preserves the right color-space when
interpolating currentColor.

Differential Revision: https://phabricator.services.mozilla.com/D147512

* Further changes required by Servo

* style: Add an input-region-margin to widgets, and implement it on Linux

Recompute the input region when resizing the widget and so on, and use
it to check for rollups.

Depends on D148211

Differential Revision: https://phabricator.services.mozilla.com/D148222

* Avoid complaints from ./mach test-tidy

* Update test expectations

---------

Co-authored-by: Emilio Cobos Álvarez <emilio@crisal.io>
Co-authored-by: Brad Werth <bwerth@mozilla.com>
Co-authored-by: David Shin <dshin@mozilla.com>
Co-authored-by: Hiroyuki Ikezoe <hikezoe.birchill@mozilla.com>
Co-authored-by: Nika Layzell <nika@thelayzells.com>
Co-authored-by: Boris Chiou <boris.chiou@gmail.com>
Co-authored-by: Autumn on Tape <autumn@cyfox.net>
Co-authored-by: Mike Hommey <mh+mozilla@glandium.org>
2023-08-15 23:11:39 +00:00
Emilio Cobos Álvarez
31e8e418ea Miscellaneous build / tidy fixes. 2021-02-26 17:53:55 +01:00
Emilio Cobos Álvarez
9f40b9ba38 style: Avoid some allocations in selector serialization.
The allocations in display_to_css_identifier show up in the profiles of
bug 1675628.

Differential Revision: https://phabricator.services.mozilla.com/D97856
2021-02-26 16:44:05 +01:00
Emilio Cobos Álvarez
762abbaf9f
style: Rustfmt recent changes. 2020-06-04 02:02:50 +02:00
Emilio Cobos Álvarez
4b5de772c6 style: Make Invalidation work in terms of a dependency, not a selector.
That way we can look at the parent dependency as described in the previous
patch. An alternative would be to add a:

    parent_dependency: Option<&'a Dependency>

on construction to `Invalidation`, but this way seems slightly better to avoid
growing the struct. It's not even one more indirection because the selector is
contained directly in the Dependency struct.

Differential Revision: https://phabricator.services.mozilla.com/D71422
2020-06-04 01:50:36 +02:00
Emilio Cobos Álvarez
e3009a4de9
style: Implement shadow part forwarding (minus invalidation).
Some of the stuff, in particular inside GeckoBindings stuff should be
refactored to be less ugly and duplicate a bit less code, but the rest of the
code should be landable as is.

Some invalidation changes are already needed because we weren't matching with
the right shadow host during invalidation (which made existing ::part() tests
fail).

Pending invalidation work:

 * Making exportparts work right on the snapshots.
 * Invalidating parts from descendant hosts.

They're not very hard but I need to think how to best implement it:

 * Maybe get rid of ShadowRoot::mParts and just walk DOM descendants in the
   Shadow DOM.

 * Maybe implement a ElementHasExportPartsAttr much like HasPartAttr and use
   that to keep the list of elements.

 * Maybe invalidate :host and ::part() together in here[1]

 * Maybe something else.

Opinions?

[1]: https://searchfox.org/mozilla-central/rev/131338e5017bc0283d86fb73844407b9a2155c98/servo/components/style/invalidation/element/invalidator.rs#561

Differential Revision: https://phabricator.services.mozilla.com/D53730
2019-11-30 20:45:03 +01:00
Jan Andre Ikenmeyer
1d6fe65401
Update MPL license to https (part 4) 2018-11-19 14:47:27 +01:00
Simon Sapin
a15d33a10e cargo fix --edition 2018-11-10 17:47:28 +01:00
Pyfisch
9e92eb205a Reorder imports 2018-11-06 22:35:07 +01:00
Pyfisch
cb07debcb6 Format remaining files 2018-11-06 22:30:31 +01:00
Emilio Cobos Álvarez
a3fcfb6435
style: Add a fast path for querySelector{,All} when we have classes or tags in the rightmost compound.
Before this patch we were only optimizing the case of a single selector, which
is fine, but not enough to catch ones like .foo .bar or so.

This patch allows us to optimize classes and tags in the rightmost compound,
while keeping the current optimization for #id selectors.

Need to profile this, but code-wise should be ready for review.

Differential Revision: https://phabricator.services.mozilla.com/D9351
2018-11-05 12:29:10 +01:00
chansuke
8dab4d659a
Format style component. 2018-09-09 16:24:45 +02:00
Emilio Cobos Álvarez
38cbada278
style: Optimize QuerySelector in shadow trees.
Pretty much the same setup we have for document.

We have the awkwardness of having to check containing shadow manually for
ShadowRoot because it's not available in TNode (and making it available added a
bit more complexity that wasn't worth it IMO).

Bug: 1464428
Reviewed-by: xidorn
MozReview-Commit-ID: CqOh0sLHf6o
2018-05-28 16:02:31 +02:00
Bobby Holley
c99bcdd4b8 Run rustfmt on selectors, servo_arc, and style.
This was generated with:

./mach cargo fmt --package selectors &&
./mach cargo fmt --package servo_arc &&
./mach cargo fmt --package style

Using rustfmt 0.4.1-nightly (a4462d1 2018-03-26)
2018-04-10 17:35:15 -07:00
Emilio Cobos Álvarez
db5db13559
style: Implement the non-functional :host selector.
Kinda tricky because :host only matches rules on the shadow root where the rules
come from. So we need to be careful during invalidation and style sharing.

I didn't use the non_ts_pseudo_class_list bits because as soon as we implement
the :host(..) bits we're going to need to special-case it anyway.

The general schema is the following:

 * Rightmost featureless :host selectors are handled inserting them in the
   host_rules hashmap. Note that we only insert featureless stuff there. We
   could insert all of them and just filter during matching, but that's slightly
   annoying.

 * The other selectors, like non-featureless :host or what not, are added to the
   normal cascade data. This is harmless, since the shadow host rules are never
   matched against the host, so we know they'll just never match, and avoids
   adding more special-cases.

 * Featureless :host selectors to the left of a combinator are handled during
   matching, in the special-case of next_element_for_combinator in selectors.
   This prevents this from being more invasive, and keeps the usual fast path
   slim, but it's a bit hard to match the spec and the implementation.

   We could keep a copy of the SelectorIter instead in the matching context to
   make the handling of featureless-ness explicit in match_non_ts_pseudo_class,
   but we'd still need the special-case anyway, so I'm not fond of it.

 * We take advantage of one thing that makes this sound. As you may have
   noticed, if you had `root` element which is a ShadowRoot, and you matched
   something like `div:host` against it, using a MatchingContext with
   current_host == root, we'd incorrectly report a match. But this is impossible
   due to the following constraints:

    * Shadow root rules aren't matched against the host during styling (except
      these featureless selectors).

    * DOM APIs' current_host needs to be the _containing_ host, not the element
      itself if you're a Shadow host.

Bug: 992245
Reviewed-by: xidorn
MozReview-Commit-ID: KayYNfTXb5h
2018-04-09 12:19:05 +02:00
Emilio Cobos Álvarez
7ab4b21bc3
selectors: Remove the get_ prefix from get_local_name and get_namespace. 2018-02-24 22:45:38 +01:00
Emilio Cobos Álvarez
b26f3280d2
style: Add invalidation support for ::slotted().
Bug: 1424607
Reviewed-by: heycam
MozReview-Commit-ID: 8pIVUx27o7x
2018-01-09 14:26:02 +01:00
Emilio Cobos Álvarez
f32f09656b
style: Allow disabling invalidation-based querySelector from C++
Rust compile times are hard.

MozReview-Commit-ID: 9Xhtf7f3Vzv
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-11-04 11:34:40 +01:00
Emilio Cobos Álvarez
f0999365e2
style: Bump the selector length heuristic.
A selector with combinators has to have length > 2 (a component, a combinator,
another component).

MozReview-Commit-ID: GvMEbRdOVi2
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-11-04 11:34:39 +01:00
Emilio Cobos Álvarez
72ec0392a4
style: Add a query-selector fast path for #id foo.
MozReview-Commit-ID: DkrLcfQLPga
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-11-04 11:34:38 +01:00
Emilio Cobos Álvarez
dbfc1eb3e0
style: Extract a bit better the logic for finding elements with an ID under a subtree.
MozReview-Commit-ID: Hj9yxBk1OvS
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-11-04 11:34:38 +01:00
Emilio Cobos Álvarez
0032d04bcf
style: Optimize all ids in the rightmost compound selector.
This is effectively the same optimization Gecko has now.

MozReview-Commit-ID: 21HrjpHdpOz
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-11-04 11:34:38 +01:00
Emilio Cobos Álvarez
60aec43dad
style: Add a fast path for querySelector/All with a single id selector using the doc ID table.
MozReview-Commit-ID: JVnDO890kn4
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-11-04 11:34:37 +01:00
Emilio Cobos Álvarez
93272f46a5
style: Move the single simple selector optimizations to a different function.
MozReview-Commit-ID: EEM3AzW2A9s
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-11-04 11:34:36 +01:00
Gecko Backout
8f8fd517ed Backed out changeset dbd300f4d75b for build bustage. r=backout on a CLOSED TREE
Backs out https://github.com/servo/servo/pull/19108
2017-11-03 23:56:42 +00:00
Emilio Cobos Álvarez
bfabd9f855
style: Allow disabling invalidation-based querySelector from C++
Rust compile times are hard.

MozReview-Commit-ID: 9Xhtf7f3Vzv
2017-11-03 14:18:48 +01:00
Emilio Cobos Álvarez
9a378a89b4
style: Bump the selector length heuristic.
A selector with combinators has to have length > 2 (a component, a combinator,
another component).

MozReview-Commit-ID: GvMEbRdOVi2
2017-11-03 14:18:46 +01:00
Emilio Cobos Álvarez
eea8ecd345
style: Add a query-selector fast path for #id foo.
MozReview-Commit-ID: DkrLcfQLPga
2017-11-03 14:18:45 +01:00
Emilio Cobos Álvarez
ea8f493ae6
style: Extract a bit better the logic for finding elements with an ID under a subtree.
MozReview-Commit-ID: Hj9yxBk1OvS
2017-11-03 14:18:44 +01:00
Emilio Cobos Álvarez
b03b59b218
style: Optimize all ids in the rightmost compound selector.
This is effectively the same optimization Gecko has now.

MozReview-Commit-ID: 21HrjpHdpOz
2017-11-03 14:18:44 +01:00
Emilio Cobos Álvarez
1fd7269949
style: Add a fast path for querySelector/All with a single id selector using the doc ID table.
MozReview-Commit-ID: JVnDO890kn4
2017-11-03 14:18:43 +01:00
Emilio Cobos Álvarez
c3876a42a8
style: Move the single simple selector optimizations to a different function.
MozReview-Commit-ID: EEM3AzW2A9s
2017-11-03 13:49:15 +01:00
Emilio Cobos Álvarez
dd5cd29a61
style: Introduce TDocument::is_html_element and TDocument::quirks_mode.
This allows some code to read a bit nicer, and stop passing down quirks mode to
querySelector / querySelectorAll.
2017-10-26 13:22:31 +02:00
Emilio Cobos Álvarez
644b502b0d
style: Ensure QuerySelector only processes the light tree.
MozReview-Commit-ID: 7Nw1SEuWNaC
2017-10-23 08:27:50 +02:00
Emilio Cobos Álvarez
dd7196949f
style: Don't use the invalidation machinery unless we may get some benefit from it.
MozReview-Commit-ID: 8Wpn2bjuHBQ
2017-10-23 08:27:49 +02:00
Emilio Cobos Álvarez
d73af807b7
style: Add a few QuerySelector fast-paths.
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-10-23 08:27:46 +02:00
Emilio Cobos Álvarez
2274fd7ef3
style: Refactor querySelector to be generic over the query type, and implement a tree-walking variant of it.
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-10-23 08:25:09 +02:00
Emilio Cobos Álvarez
6d78e9ba54
style: Add a very simple invalidation-based querySelector.
MozReview-Commit-ID: Fimc8tz4OWX
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
2017-10-23 08:22:52 +02:00
Matt Brubeck
efc3683cc7 Fix commonmark Markdown warnings in docs, part 1
Fixes warnings from rust-lang/rust#44229 when `--enable-commonmark` is
passed to rustdoc.

This is mostly a global find-and-replace for bare URIs on lines by
themselves in doc comments.
2017-10-17 11:24:57 -07:00
Emilio Cobos Álvarez
f64f8b8be2
style: Share code for Element::Closest. 2017-10-13 17:21:31 +02:00
Emilio Cobos Álvarez
9e6c49d479
style: Share code for Element::Matches. 2017-10-13 17:21:26 +02:00