Martin Robinson 4a9c95ac8e layout: Handle selection during display list construction (#41963) ...

Instead of handling selection in text input during box tree / fragment
tree construction, fully handle it during display list construction.
This means that when the selection changes in script, it updates
automatically in the `FragmentTree` and only a new display list is
necessary. This avoids a layout while changing the selection in text
fields.

Testing: This fixes a few rendering issues, but these are very hard
to isolate and test for. It causes one test to start failing, but this
is
because a cursor that wasn't rendered properly now starts showing
up.
Fixes: #41920.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>

2026-01-21 08:04:15 +00:00

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