computeEndZoneStartRow

Finds the first row in the fixed-focus end zone

Available since @roku-sdk/flex-grid 3.3.0

import { computeEndZoneStartRow } from "@roku-sdk/flex-grid/geometry";

Also exported as computeEndZoneStartRow from @roku-sdk/flex-grid (deprecated).

Deprecated: computeEndZoneStartRow. Import from @roku-sdk/flex-grid/geometry instead. The root export will be removed in the next major version.

computeEndZoneStartRow(params: FixedFocusYParams): number

Description

Finds the first row in the fixed-focus end zone.

Empty content or content that fits the viewport returns zero. Row start positions must be non-decreasing. If no row reaches the end-zone threshold, the last row is selected. This calculation does not loop rows.

Parameters

Return values

The zero-based row index where end-zone pinning begins.

Example

computeEndZoneStartRow({ containerY: 0, viewportHeight: 200, numRows: 4, getRowY: r => r * 100, getRowHeight: () => 100 }); // 2