On Fri, Sep 1, 2023 at 3:09 PM François Beaufort <fbeauf...@google.com>
wrote:

> Contact emails
>
> fbeauf...@google.com
>
> elada...@google.com
>
> Explainer
>
>
> https://github.com/eladalon1983/screen-share-explainers/blob/main/monitorTypeSurfaces_Explainer.md
>
> Specification
>
>
> https://w3c.github.io/mediacapture-screen-share/#dom-displaymediastreamoptions-monitortypesurfaces
>
> Summary
>
> When getDisplayMedia() is called, the browser offers the user a choice of
> display surfaces: tabs, windows, or monitors. Using the
> monitorTypeSurfaces option, the web application may now hint to the
> browser if it prefers to include display surfaces whose type is monitor
> among the choices offered to the user.
>
> Blink component
>
> Blink>GetDisplayMedia
> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EGetDisplayMedia>
>
> TAG review
>
> https://github.com/w3ctag/design-reviews/issues/892
>
> TAG review status
>
> Pending
>

FYI this feature is a simple addition of a single flag to an existing
dictionary, following an established pattern that’s also used by a few
other keys of the same dictionary (selfBrowserSurface, systemAudio,
surfaceSwitching). well-known patterns.
We already filed a TAG review for similar options at
https://github.com/w3ctag/design-reviews/issues/744 which was marked as
satisfied.


> Risks
> Interoperability and Compatibility
>
> None
>
> Gecko: No signal (
> https://github.com/mozilla/standards-positions/issues/876) Jan-Ivar
> Bruaroey from Mozilla has reviewed and approved
> https://github.com/w3c/mediacapture-screen-share/pull/274.
>
> WebKit: No signal (
> https://github.com/WebKit/standards-positions/issues/248) Youenn Fablet
> from Apple has participated in
> https://www.w3.org/2023/06/27-webrtc-minutes.html#t04 and
> https://github.com/w3c/mediacapture-screen-share/issues/261#issuecomment-1693090386
> .
>
> Web developers: Positive Cisco folks have expressed interest in this
> feature.
> https://github.com/screen-share/meetings/blob/main/minutes/2023-03-21.md?plain=1#L161
>
> 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, Chrome OS, Android, and Android WebView)?
>
> Supported on all platforms that support getDisplayMedia. Namely, 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>
> ?
>
> Yes. See https://wpt.fyi/results/screen-capture/getdisplaymedia.https.html
>
> Flag name on chrome://flags
>
> None
>
> Finch feature name
>
> MonitorTypeSurfaces
>
> Requires code in //chrome?
>
> Yes. In chrome/browser/media/webrtc/display_media_access_handler.cc
>
> Tracking bug
>
> https://bugs.chromium.org/p/chromium/issues/detail?id=1477706
>
> Estimated milestones
>
> Shipping on desktop
>
> 119
>
> 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/5558622137876480
>
> This intent message was generated by Chrome Platform Status
> <https://chromestatus.com/>.
>
>

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