Feature Scroll Spy

Scroll-spy (anchor mode)

Set scroll_spy: true to turn the deck into one long page. Every tab's content is stacked as a section:

• tapping a tab scrolls to its section, and
• scrolling highlights the tab of the section in view.

This suits long single-page dashboards (a room-by-room overview, say) where you still want a jump bar.

Config key: scroll_spy (top-level boolean) · Default: false

type: custom:tabdeck-card
scroll_spy: true
header: true          # optional: a title above each section
style: pill
tabs:
  - name: Living
    icon: mdi:sofa
    card: { ... }
  - name: Kitchen
    icon: mdi:silverware-fork-knife
    card: { ... }
  - name: Bedroom
    icon: mdi:bed
    card: { ... }

Behaviour

• The bar is automatically sticky, pinned below Home Assistant's header.
• The "current" section is the first one crossing a band near the top of the screen (just below the header and the bar).
• A tap scrolls smoothly, and the highlight doesn't flicker through the sections it passes on the way.
• Swipe, auto_rotate and live remember: entity sync also scroll to their section.
• Selections made by scrolling aren't remembered. Taps are (per remember).
• With header: true, each section gets its own title and the single content header is dropped.
• Every card is always mounted, so unmount_hidden and transition don't apply in this mode.

Styling

Variable	Default	Effect
--tabdeck-spy-offset	120px	Space left above a section when it's scrolled to (HA header + bar).
--tabdeck-sticky-top	HA header height	Where the pinned bar sits.