A shape change with the keyboard up re-baselined initialViewportHeight to the
SHRUNK visual height, so heightDiff was 0 and the settle event the OS fires at
the new width (or any later address-bar drift) satisfied the hide branch and
ran onKeyboardHide() with the keyboard still on screen: accessory bar hidden,
toolbar lift dropped, main's padding cleared. It could not recover, since no
further 150px drop re-arms the show branch against a baseline already sitting
at the shrunk height.
Baseline to window.innerHeight instead when the keyboard is up: the page sets
no interactive-widget, so the keyboard shrinks only the visual viewport and
the layout viewport stays the display's full height on both engines, the same
fact updateLayoutForKeyboard() relies on.
The vm harness now models the two heights separately (resizeTo takes an
optional layout height) and pins the fold flavour (626x590, 466x378, 466x378),
the rotation flavour (393x359, 852x150, 852x160) and the eventual close. All
three fail against the old line.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Codeman maintainer
ef15768e5f