It's not quite true that plugins aren't Web-exposed anymore; PDF support still appears as a plugin. Is there any impact to PDF viewers?
On Thu, Jun 9, 2022, 9:48 AM Daniel Bratell <[email protected]> wrote: > LGTM3 > > /Daniel > On 2022-06-09 18:20, Chris Harrelson wrote: > > LGTM2 > > On Thu, Jun 9, 2022 at 9:18 AM Rick Byers <[email protected]> wrote: > >> Oh yikes, these got exposed to the web and we never noticed? Scary. I may >> have had a hand in that a long time ago, sorry! I forget the details, but >> remember something about NaCL and maybe Flash support for touch scrolling. >> Presumably none of that matters anymore now that Flash and NaCL are gone. >> >> I can imagine scenarios where they might be useful to have, but I guess >> being main thread only makes them pretty useless (almost all gesture >> scrolls are threaded these days). Anyway, given the near zero usage, lack >> of a spec, main-thread only behavior and lack of evidence >> <https://www.google.com/search?q=gesturescrollstart+event&oq=gesturescrollstart+event&aqs=chrome..69i57l2j0i546l2j69i65j69i60l3.4102j1j7&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIGCAEQRRg5MgcIAhAAGKIEMgcIAxAAGKIEMgYIBBBFGEEyBggFEEUYPDIGCAYQRRg8MgYIBxBFGDzSAQg0MTAyajFqN6gCALACAA&sourceid=chrome&ie=UTF-8> >> of anyone talking about these events I'd consider this extremely safe to >> remove (more of a bug fix than a deprecation). LGTM1 >> >> Thanks for discovering this and cleaning it up! >> >> On Thu, Jun 9, 2022 at 9:11 AM Mehdi Kazemi <[email protected]> wrote: >> >>> Contact emails >>> >>> >>> * [email protected] <[email protected]>,[email protected] >>> <[email protected]>,[email protected] >>> <[email protected]> * Explainer >>> >>> >>> * None * Specification >>> >>> None. Not a standard feature. >>> >>> Summary >>> >>> Gesture Scroll DOM events, namely “gesturescrollstart”, >>> “gesturescrollupdate” and “gesturescrollend” are non-standard APIs, which >>> were added to Blink for use in plugins, but it appears they were also >>> exposed to the web unintentionally. Plugins are no longer web-exposed since >>> the deprecation of Google Native Client (NaCl). >>> >>> WebKit Bug: https://bugs.webkit.org/show_bug.cgi?id=92281 >>> >>> Changelog: >>> https://bugs.webkit.org/attachment.cgi?id=155046&action=prettypatch >>> >>> Motivation >>> >>> Currently, this API doesn’t work in all situations. It only works when >>> there is a *non-composited scroller*. These events are related to >>> compositing state, and compositing state is not meant to have observable >>> behavior impact and in Blink will vary depending on display type and other >>> factors. >>> >>> Blink component >>> >>> Blink>Scroll >>> <https://bugs.chromium.org/p/chromium/issues/list?q=component%3ABlink%3EScroll&can=2> >>> >>> TAG review >>> >>> TAG review status >>> >>> Not applicable >>> >>> Risks >>> >>> No other engine supports these events, so we do not expect >>> interoperability issues. >>> >>> As for compatibility, usage data from Canary, Dev and Beta channels show >>> that usage is very low, around 0.000015% (gesturescrollstart >>> <https://chromestatus.com/metrics/feature/timeline/popularity/4220> >>> gesturescrollupdate >>> <https://chromestatus.com/metrics/feature/timeline/popularity/4221> >>> gesturescrollend >>> <https://chromestatus.com/metrics/feature/timeline/popularity/4222>). >>> For this reason we would like to just remove it, without any deprecation >>> period. >>> >>> Is this feature fully tested by web-platform-tests >>> <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md> >>> ? >>> >>> No >>> >>> >>> Requires code in //chrome? >>> >>> False >>> >>> >>> Tracking bug >>> >>> https://crbug.com/1293994 >>> <https://bugs.chromium.org/p/chromium/issues/detail?id=1293994> >>> >>> >>> Estimated milestones >>> >>> No milestones specified >>> >>> >>> >>> >>> >>> -- >>> 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 [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAASN_%3DmnFnKhp7WQNYiVztF%3Dhr1jpzSTo1x02nXZtysnO2GUMQ%40mail.gmail.com >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAASN_%3DmnFnKhp7WQNYiVztF%3Dhr1jpzSTo1x02nXZtysnO2GUMQ%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 [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY_BmVOXxKibPwSF%2BNn9u76AUXdE09fjE7ohWVF7iqUvMg%40mail.gmail.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY_BmVOXxKibPwSF%2BNn9u76AUXdE09fjE7ohWVF7iqUvMg%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw8qg6SbsZNX0SU6JK%3D_7WhsBkuGLpEHpKGpEAXNXnN%3DLA%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw8qg6SbsZNX0SU6JK%3D_7WhsBkuGLpEHpKGpEAXNXnN%3DLA%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/982bc373-1ad8-595a-0433-999d49257cec%40gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/982bc373-1ad8-595a-0433-999d49257cec%40gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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