Martin Robinson 718c8913af script/constellation: Rename and consolidate cross-Document focus messaging (#44020) ...

There are two times that Servo needs to ask other `Document`s to either
focus or blur.

- During processing of the "focusing steps". When a new element gains
  focus this may cause focus to be lost or gained in parent `<iframe>`s.
- When calling `focus()` on a DOM Window from another origin.

In both of these cases we need to request that a `Document` gain or lose
focus via the Constellation, but in the second case we may have a
`BrowsingContextId` of the `<iframe>` gaining focus and a
`FocusSequence`. This change splits those cases into two kinds of
messages.

Finally, run the entire focusing steps when calling `window.focus()`
instead of going to the constellation immediately. This will be
important in a followup changes where messaging order is made more
consistent.

Testing: This should not change behavior so is covered by existing
tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

2026-04-09 08:59:47 +00:00

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