The main reason for partial WPT coverage is that the API is formulated with some key MAY-s, in order to accommodate Safari's different media-picker model. The errors should be the same on all platforms, and are tested. But whether the focus goes to the captured or capturing page is left to the UA to decide, and so cannot be effectively tested by WPT. (Chromium does have browser tests for that.)
A strong secondary reason, btw, is the disproportionate difficulty of testing this API reliably using WPT. On Wednesday, October 19, 2022 at 5:11:52 AM UTC+2 yoav...@chromium.org wrote: > On Thu, Oct 13, 2022 at 10:24 PM 'Elad Alon' via blink-dev < > blin...@chromium.org> wrote: > >> Contact emailselad...@chromium.org >> >> Explainerhttps://github.com/WICG/conditional-focus/blob/main/README.md >> >> Specification >> https://w3c.github.io/mediacapture-screen-share/#dom-capturecontroller-setfocusbehavior >> >> Design docs >> https://docs.google.com/document/d/1LHJRt-ry9hwzFTbPxKrmD0VvtEFEU6lvqsD7k6wwGKM >> (Note that this reflects the old API shape. There is no substantive >> difference; the same functionality is simply exposed on a different surface >> now.) >> >> Summary >> >> Extend the getDisplayMedia() API by adding a CaptureController object >> which can be passed in as a parameter. This object exposes a >> setFocusBehavior() method. By calling this method, an app can control >> whether the captured tab/window is focused when capture starts, or whether >> the capturing page should retain focus. >> >> >> Blink componentBlink >> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink> >> >> TAG reviewhttps://github.com/w3ctag/design-reviews/issues/679 >> >> TAG review statusPending >> >> Risks >> >> >> Interoperability and Compatibility >> >> >> >> *Gecko*: Positive ( >> https://github.com/mozilla/standards-positions/issues/697) Jan-Ivar >> Bruaroey from Mozilla, and Youenn Fablet from Apple, have both collaborated >> with us closely in shaping the PRs of this API. They have then approved >> merging the PRs into w3c/mediacapture-screen-share. This is implicit >> support, so I'd consider it POSITIVE even though, as of the time of this >> writing, the official request for position has not yet been answered. >> >> *WebKit*: Positive ( >> https://github.com/WebKit/standards-positions/issues/73) Jan-Ivar >> Bruaroey from Mozilla, and Youenn Fablet from Apple, have both collaborated >> with us closely in shaping the PRs of this API. They have then approved >> merging the PRs into w3c/mediacapture-screen-share. This is implicit >> support, so I'd consider it POSITIVE even though, as of the time of this >> writing, the official request for position has not yet been answered. >> >> *Web developers*: Positive (https://github.com/WICG/proposals/issues/37) >> Support from Web developers inside+outside of Google. >> >> *Other signals*: >> >> Ergonomics >> >> N/A >> >> >> Activation >> >> N/A >> >> >> Security >> >> See design-doc. >> >> >> WebView application risks >> >> N/A >> >> >> >> Debuggability >> >> N/A >> >> >> Will this feature be supported on all six Blink platforms (Windows, Mac, >> Linux, Chrome OS, Android, and Android WebView)?No >> >> Supported on all Desktop platforms. >> >> >> Is this feature fully tested by web-platform-tests >> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> >> ?No >> > > Any particular reason? > > >> >> >> Flag nameConditionalFocus >> >> Tracking bug >> https://bugs.chromium.org/p/chromium/issues/detail?id=1215480 >> >> Launch bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1214483 >> >> Sample linkshttps://wicg.github.io/conditional-focus/demo >> >> Estimated milestones >> Expected full-ship milestone: 109 >> OriginTrial desktop last 108 (or up to and including 111 if delays are >> encountered; already approved >> <https://groups.google.com/a/chromium.org/g/blink-dev/c/CLmSojRQHoc/m/X-AroW-UAQAJ> >> .) >> OriginTrial desktop first 102 >> >> Anticipated spec changes >> >> N/A >> >> >> Link to entry on the Chrome Platform Status >> https://chromestatus.com/feature/5646614535340032 >> >> Links to previous Intent discussionsIntent to prototype: >> https://groups.google.com/a/chromium.org/g/blink-dev/c/lbuqOGx07xY >> Intent to Experiment: >> https://groups.google.com/a/chromium.org/g/blink-dev/c/I4RE2pbocTg >> Intent to Extend Experiment: >> https://groups.google.com/a/chromium.org/g/blink-dev/c/CLmSojRQHoc/m/X-AroW-UAQAJ >> >> >> 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+...@chromium.org. >> To view this discussion on the web visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAMO6jDNmAMDVMxEKQRgVtHv7Cx_3%2BiHYWOCBi-VZ9%3DWqX6t5pw%40mail.gmail.com >> >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAMO6jDNmAMDVMxEKQRgVtHv7Cx_3%2BiHYWOCBi-VZ9%3DWqX6t5pw%40mail.gmail.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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