host: expand isolated view to full width with floating top bar#4626
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host: expand isolated view to full width with floating top bar#4626
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Adds an "expand" toggle on the top stack-item's CardHeader that morphs
the card to full width below a floating top bar. The bar gains glass-
morphism while expanded and the CardHeader portals into a center pill
in the bar (replacing the inline header). View-transition pins the bar
across the morph so the expand/collapse animates as a single shape.
Positioning is driven by a single CSS variable, --stack-padding-top
(item-height + 2 × spacing), shared by:
* .submode-layout-top-bar height (locked, so portaled content can't
push it taller)
* .operator-mode-stack padding-top when an item is expanded (forced
full value, overriding stack-medium/small-padding-top reductions
that are correct for the buried-stack visual but not when expanded)
* .item.expanded inset: 0 of .inner (which sits at y=stack-padding-top)
Result: card top sits flush at bar bottom — pixel-identical to host-mode's
in-flow card top. No calc(100vh - X), no JS measurement, no !important.
Buried siblings fade when a top card is expanded; neighbor-stack-trigger
arrows hide; cards-grid (Workspace "All Cards") opts out of expand since
its child tile overlays would overlap. Per-card expand intent persists on
operatorModeStateService (keyed by stack-item id) so it survives buries
and restores when the card pops back to the top.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Contributor
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Demo: https://screen.studio/share/zXdc2bHg
Adds an "expand" toggle on the top stack-item's CardHeader that morphs the card to full width below a floating top bar. The bar gains glass- morphism while expanded and the CardHeader portals into a center pill in the bar (replacing the inline header). View-transition pins the bar across the morph so the expand/collapse animates as a single shape.
Positioning is driven by a single CSS variable, --stack-padding-top (item-height + 2 × spacing), shared by:
Result: card top sits flush at bar bottom — pixel-identical to host-mode's in-flow card top. No calc(100vh - X), no JS measurement, no !important.
Buried siblings fade when a top card is expanded; neighbor-stack-trigger arrows hide; cards-grid (Workspace "All Cards") opts out of expand since its child tile overlays would overlap. Per-card expand intent persists on operatorModeStateService (keyed by stack-item id) so it survives buries and restores when the card pops back to the top.