On Tue, Nov 21, 2023 at 9:43 PM Yoav Weiss <yoavwe...@chromium.org> wrote:

>
>
> On Friday, November 17, 2023 at 8:47:34 PM UTC+1 Tommy Steimel wrote:
>
> Contact emailsstei...@chromium.org, liber...@chromium.org
>
> ExplainerNone
>
> Specificationhttps://github.com/WICG/document-picture-in-picture/pull/104
>
> Summary
>
> This adds a user gesture requirement for the resizeBy() and resizeTo()
> Window APIs for document picture-in-picture windows. This allows websites
> to make use of those APIs while mitigating much of the abuse potential of
> those APIs on an always-on-top window.
>
>
> Blink componentBlink>Media>PictureInPicture
> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EMedia%3EPictureInPicture>
>
> TAG reviewN/A as this is a minor change to the behavior of an existing API
>
> TAG review statusNot applicable
>
> Risks
>
>
> Interoperability and Compatibility
>
> None
>
>
> This added requirement would mean that calls to these API can now fail. Is
> that new? Or are developers already expected to handle failures?
> Do we expect developers to start checking the UserActivation API
> <https://developer.mozilla.org/en-US/docs/Web/API/UserActivation> before
> calling these methods?
>

Currently these APIs always fail on document picture-in-picture windows
regardless of user activation (to prevent really spammy always-on-top
windows). We don't expect developers to check the UserActivation API at
all, just to only call resizeTo()/resizeBy() in response to a user gesture.


>
>
> *Gecko*: No signal (https://github.com/mozilla/standards-positions/issues/
> 670#issuecomment-1786354361) Added comment to existing standards position
> issue for document picture-in-picture. No response yet
>
> *WebKit*: No signal (https://github.com/WebKit/
> standards-positions/issues/41#issuecomment-1786354016) Added comment to
> existing standards position issue for document picture-in-picture. No
> response yet
>
> *Web developers*: Positive The ability to programmatically resize the
> document picture-in-picture window is one of the most-requested features
> for document picture-in-picture
>
> *Other signals*:
>
> Ergonomics
>
> N/A
>
>
> Activation
>
> N/A
>
>
> Security
>
> While being able to resize an always-on-top window at will is a
> security/annoyance risk, by making the API consume a user gesture, the
> website can only resize once per click, which limits the possible abuse
> vectors
>
>
> 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?
>
> 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
>
> The document picture-in-picture API is not supported on Android
>
>
> Is this feature fully tested by web-platform-tests
> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
> ?Yes
>
> document-picture-in-picture/resize-requires-user-gesture.https.html
>
>
> Flag name on chrome://flagsNone
>
> Finch feature nameNone
>
> Non-finch justification
>
> Small, low-risk change to existing API
>
>
> Requires code in //chrome?False
>
> Tracking bughttps://crbug.com/1354325
>
> Sample links
> https://steimelchrome.github.io/document-pip/click_to_resize.html
>
> Estimated milestonesShipping on desktop121
>
> 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).
> N/A
>
> Link to entry on the Chrome Platform Statushttps://chromestatus.com/
> feature/5398995019235328
>
> This intent message was generated by Chrome Platform Status
> <https://chromestatus.com/>.
>
>

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