LGTM2
On 1/27/25 10:55 PM, Domenic Denicola wrote:
LGTM1.
I think it's a bit unclear whether or not this requires an Intent to
Ship and API owner approval, but I'm supportive of the conservative
path you've taken of sending one and requesting such approval.
The analysis about interop and compat that you've provided shows that
there are indeed web-observable effects, but also that they should
hopefully be manageable. Even if sites are specifically targeting
Windows/Linux Chrome's 17px size, the most likely "breakage" is adding
an extra 2px margin to such pages, which is not serious. And, if
something unanticipated happens, we can always use the Finch kill-switch.
On Tue, Jan 28, 2025 at 2:54 AM Chromestatus
<ad...@cr-status.appspotmail.com> wrote:
Contact emails
arak...@microsoft.com, gast...@microsoft.com
Explainer
None
Specification
None
Summary
This feature modernizes the Chromium scrollbars (both overlay and
non-overlay) on Windows and Linux to fit the Windows 11 Fluent
design language. Non-overlay Fluent scrollbars will be enabled by
default in Linux and Windows. This change applies to Linux as well
because Chromium's Linux scrollbar design has historically been
aligned with what ships on Windows. How to expose enabling overlay
Fluent scrollbars is still being decided. Visual spec:
https://docs.google.com/document/d/1haDpb1QIh2PaLwsQD1i4WHFq_5_jSK3XK9lhgSs4WkM/edit?usp=sharing
Design doc:
https://docs.google.com/document/d/1GCmz2nbJV1XiopoLHnlrVaHCjhQMdiyDfPN_a22OIjU/edit?usp=sharing
Intent to implement:
https://groups.google.com/a/chromium.org/g/blink-dev/c/SomQdLx6aEk
Blink component
Blink>Layout>Scrollbars
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ELayout%3EScrollbars%22>
Search tags
fluent <http:///features#tags:fluent>, scrollbars
<http:///features#tags:scrollbars>, fluent scrollbars
<http:///features#tags:fluent%20scrollbars>
TAG review
N/A
TAG review status
Not applicable
Risks
Interoperability and Compatibility
Fluent scrollbars are thinner than the existing design for them.
On 100% scale, chromium scrollbars are 17px wide while Fluent
scrollbars are 15px wide. This change could have the following
consequences: - Some scrolling or layout tests may see a decrease
in performance due to a larger viewport being rendered. - The
rendered area for pages with scrollbars will be slightly larger,
which may cause layout shifts for webpages who wrote their pages
assuming the previous scrollbar dimensions. Here are some
considerations that reduce the mentioned risks: - Platforms with
overlay scrollbars enabled by default (ChromeOS, mobile devices,
Mac without a mouse) already have different viewport widths for
the same window size. - Scrollbars can already have different
widths in different User Agents. For example, Mac's always-on
scrollbars are 14px wide, and Opera GX's are 15px wide.
/Gecko/: N/A
/WebKit/: N/A
/Web developers/: No signals
/Other signals/:
WebView application risks
Does this intent deprecate or change behavior of existing APIs,
such that it has potentially high risk for Android WebView-based
applications?
None
Debuggability
None
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?
No
This feature is only available on Windows and Linux.
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
No
This feature updates the design of chrome's scrollbars and doesn't
modify any web API. The changes in layout are included in all
tests that show scrollbars, due to the nature of how WPT evaluates
results. Fluent scrollbars are already enabled by default in
tests, and only a test that checked fonts was rebased because it
relied on a screenshot that showed scrollbars
(wpt/html/syntax/charset/without-inheritance.html).
Flag name on about://flags
FluentScrollbar
Finch feature name
FluentScrollbar
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1292117
Availability expectation
This feature is expected to be available in Chromium stable 133,
which will launch around February 2025.
Estimated milestones
DevTrial on desktop 133
Anticipated spec changes
Open questions about a feature may be a source of future web
compat or interop issues. Please list open issues (e.g. links to
known github issues in the project for the feature specification)
whose resolution may introduce web compat/interop risk (e.g.,
changing to naming or structure of the API in a
non-backward-compatible way).
None
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5693137379917824?gate=5830848805339136
Links to previous Intent discussions
Intent to Prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/448ca565-e38e-43f0-8cb8-838db18d30d0n%40chromium.org
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
--
You received this message because you are subscribed to the Google
Groups "blink-dev" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to blink-dev+unsubscr...@chromium.org.
To view this discussion visit
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6797c861.710a0220.3b27a2.03b1.GAE%40google.com
<https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6797c861.710a0220.3b27a2.03b1.GAE%40google.com?utm_medium=email&utm_source=footer>.
--
You received this message because you are subscribed to the Google
Groups "blink-dev" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to blink-dev+unsubscr...@chromium.org.
To view this discussion visit
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM0wra_k13PBcXD53WFwiu%2BQYD6V42J5tC5jO7AQLA2meVjMhQ%40mail.gmail.com
<https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM0wra_k13PBcXD53WFwiu%2BQYD6V42J5tC5jO7AQLA2meVjMhQ%40mail.gmail.com?utm_medium=email&utm_source=footer>.
--
You received this message because you are subscribed to the Google Groups
"blink-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to blink-dev+unsubscr...@chromium.org.
To view this discussion visit
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/ad3ad5a3-a10f-414a-9b64-4759639634dc%40chromium.org.
