[DevTools] Highlight the rect when the corresponding timeline bean is hovered #34881
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…nders (#34885) Stacked on #34881. We don't paint suspense boundaries if there are no suspenders. This does the same with the root. The root is still selectable so you can confirm but there's no affordance drawing attention to click the root. This could happen if you don't use the built-ins of React to load things like scripts and css. It would never happen in something like Next.js where code and CSS is loaded through React-native like RSC. However, it could also happen in the Activity scoped case when all resources are always loaded early.
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[diff facebook/react@1324e1bb...58bdc0bb](facebook/react@1324e1b...58bdc0b) <details> <summary>React upstream changes</summary> - facebook/react#34911 - facebook/react#34907 - facebook/react#34906 - facebook/react#34898 - facebook/react#34893 - facebook/react#34892 - facebook/react#34885 - facebook/react#34881 - facebook/react#34894 - facebook/react#34880 - facebook/react#34849 - facebook/react#34900 - facebook/react#34887 </details>
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Full list of changes: * Text layout fixes for stack traces with badges ([eps1lon](https://github.com/eps1lon) in [#34925](#34925)) * chore: read from build/COMMIT_SHA fle as fallback for commit hash ([hoxyq](https://github.com/hoxyq) in [#34915](#34915)) * fix: dont ship source maps for css in prod builds ([hoxyq](https://github.com/hoxyq) in [#34913](#34913)) * Lower case "rsc stream" debug info ([sebmarkbage](https://github.com/sebmarkbage) in [#34921](#34921)) * BuiltInCallSite should have padding-left ([sebmarkbage](https://github.com/sebmarkbage) in [#34922](#34922)) * Show the Suspense boundary name in the rect if there's no overlap ([sebmarkbage](https://github.com/sebmarkbage) in [#34918](#34918)) * Don't attach filtered IO to grandparent Suspense ([eps1lon](https://github.com/eps1lon) in [#34916](#34916)) * Infer name from stack if it's the generic "lazy" name ([sebmarkbage](https://github.com/sebmarkbage) in [#34907](#34907)) * Use same Suspense naming heuristics when reconnecting ([eps1lon](https://github.com/eps1lon) in [#34898](#34898)) * Assign a different color and label based on environment ([sebmarkbage](https://github.com/sebmarkbage) in [#34893](#34893)) * Compute environment names for the timeline ([sebmarkbage](https://github.com/sebmarkbage) in [#34892](#34892)) * Don't highlight the root rect if no roots has unique suspenders ([sebmarkbage](https://github.com/sebmarkbage) in [#34885](#34885)) * Highlight the rect when the corresponding timeline bean is hovered ([sebmarkbage](https://github.com/sebmarkbage) in [#34881](#34881)) * Repeat the "name" if there's no short description in groups ([sebmarkbage](https://github.com/sebmarkbage) in [#34894](#34894)) * Tweak the rects design and create multi-environment color scheme ([sebmarkbage](https://github.com/sebmarkbage) in [#34880](#34880)) * Adjust the rects size by one pixel smaller ([sebmarkbage](https://github.com/sebmarkbage) in [#34876](#34876)) * Remove steps title from scrubber ([sebmarkbage](https://github.com/sebmarkbage) in [#34878](#34878)) * Include some sub-pixel precision in rects ([sebmarkbage](https://github.com/sebmarkbage) in [#34873](#34873)) * Don't pluralize if already plural ([sebmarkbage](https://github.com/sebmarkbage) in [#34870](#34870)) * Don't try to load anonymous or empty urls ([sebmarkbage](https://github.com/sebmarkbage) in [#34869](#34869)) * Add inspection button to Suspense tab ([sebmarkbage](https://github.com/sebmarkbage) in [#34867](#34867)) * Don't select on hover ([sebmarkbage](https://github.com/sebmarkbage) in [#34860](#34860)) * Don't highlight on timeline ([sebmarkbage](https://github.com/sebmarkbage) in [#34861](#34861)) * The bridge event types should only be defined in one direction ([sebmarkbage](https://github.com/sebmarkbage) in [#34859](#34859)) * Attempt at a better "unique suspender" text ([sebmarkbage](https://github.com/sebmarkbage) in [#34854](#34854)) * Track whether a boundary is currently suspended and make transparent ([sebmarkbage](https://github.com/sebmarkbage) in [#34853](#34853)) * Don't hide overflow rectangles ([sebmarkbage](https://github.com/sebmarkbage) in [#34852](#34852)) * Measure text nodes ([sebmarkbage](https://github.com/sebmarkbage) in [#34851](#34851)) * Don't measure fallbacks when suspended ([sebmarkbage](https://github.com/sebmarkbage) in [#34850](#34850)) * Filter out built-in stack frames ([sebmarkbage](https://github.com/sebmarkbage) in [#34828](#34828)) * Exclude Suspense boundaries in hidden Activity ([eps1lon](https://github.com/eps1lon) in [#34756](#34756)) * Group consecutive suspended by rows by the same name ([sebmarkbage](https://github.com/sebmarkbage) in [#34830](#34830)) * Preserve the original index when sorting suspended by ([sebmarkbage](https://github.com/sebmarkbage) in [#34829](#34829)) * Don't show the root as being non-compliant ([sebmarkbage](https://github.com/sebmarkbage) in [#34827](#34827)) * Ignore suspense boundaries, without visual representation, in the timeline ([sebmarkbage](https://github.com/sebmarkbage) in [#34824](#34824)) * Explicitly say which id to scroll to and only once ([sebmarkbage](https://github.com/sebmarkbage) in [#34823](#34823)) * devtools: fix ellipsis truncation for key values ([sophiebits](https://github.com/sophiebits) in [#34796](#34796)) * fix(devtools): remove duplicated "Display density" field in General settings ([Anatole-Godard](https://github.com/Anatole-Godard) in [#34792](#34792)) * Gate SuspenseTab ([hoxyq](https://github.com/hoxyq) in [#34754](#34754)) * Release `<ViewTransition />` to Canary ([eps1lon](https://github.com/eps1lon) in [#34712](#34712))
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Stacked on #34880.
In #34861 I removed the highlight of the real view when hovering the timeline since it was disruptive to stepping through the visuals.
This makes it so that when we hover the timeline we highlight the rect with the subtle hover effect added in #34880.
We can now just use the one shared state for this and don't need the CSS psuedo-selectors.