Contact emailsdizha...@chromium.org Specificationhttps://dom.spec.whatwg.org/#concept-event-dispatch
Summary Currently, mouse-triggered event will traverse up to the parent or shadow host to find fallback element to receive mouse focus. This doesn't work for slotted content, where we expect the fallback element to receive focus to be the assigned slot, instead of its parent. This is fixed by changing that step to traverse the Flat Tree. Blink componentBlink>DOM>ShadowDOM <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EDOM%3EShadowDOM> TAG reviewNone TAG review statusNot applicable Risks Interoperability and Compatibility WPT test: shadow-dom/focus/click-focus-slot-ancestor.html *Gecko*: Shipped/Shipping *WebKit*: Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=191694) *Web developers*: No signals *Other signals*: Ergonomics There are no ergonomic risk. This feature will fix which element will receive mouse focus for the specific case of a slotted content that cannot be mouse focused. It should not affect performance. Activation No, it will be enabled by default. There should be no polyfill necessary as this change should make Blink more interoperable with the other browsers. Security N/A. There are no security risk as it does not change whether an element can be focused. It changes the target of a mouse event fallback parent to match web standards and other browsers. 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 N/A. The same DevTools for mouse event handling and focus are applicable for this feature. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?Yes This feature is for all platforms that uses HTML Shadow DOM and mouse click focus. Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ?Yes https://wpt.fyi/results/shadow-dom/focus/click-focus-slot-ancestor.html?label=experimental&label=master&aligned Flag name on about://flagsMouseFocusFlatTreeParent Finch feature nameNone Non-finch justification This is a bug fix. Requires code in //chrome?False Tracking bughttps://issues.chromium.org/issues/41420461 Sample links https://codepen.io/JanMiksovsky/pen/OBjzeY?editors=1000#0 Estimated milestones Shipping on desktop 133 Shipping on Android 133 Shipping on WebView 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/5203351732748288?gate=5069763519447040 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/ae37eaf7-7111-49bc-b1e6-4dde70577a10n%40chromium.org.
