# Quantity river A React component in [Beamline](https://beamline.io/)'s [Data & tables](https://beamline.io/components/data) category. Live demo: https://beamline.io/components/quantity-river The life of one order line's quantity: at rest a bar of its real split ("5 delivered · 1 back in stock · 1 damaged · 5 cancelled"), unfolding into a river where every unit is a dot that travels between stages (waiting, allocated by location, on the way by shipment, delivered, returned, back in stock, damaged, cancelled), banks that count what passed between two stages, a ledger that rewinds the river and the money to any moment, and the money in its own lane. Actions, a split draft and return checks sit on the river. ## Use it for - Any partial quantity people ask about: an order line, a purchase order receipt, a yield allocated to lots, kitchen items fired and served. - The host owns the events; the part replays them into units, counts, banks, the bar and the ledger. ## Not for - A single status for a whole order → status-badge or tracker. - Stock levels over time → a chart. ## Anatomy - rest (a button): the line and its quantity, the segmented bar, the split in words - sheet: now or the replayed date with the split; the river's columns (stage word, count, dots by location or shipment, drafts and the host's actions); the banks under them; the money lane; the ledger (when, who, change with money and note, the split after it) ## States - rest - open - replaying (a ledger row pointed at or focused) - drafting (a split of allocated units, returned units' facts) - narrow (stages as a list) ## Keyboard - Enter or Space on the line opens it; Escape or Close folds it back with focus on the line - Tab reaches the drafts and actions on the columns, then each ledger row; focusing a row rewinds the river to it, leaving returns to now - Columns are groups named with their stage and count; the ledger is a table with a caption ## Motion Units travel between columns on the shared FLIP when an event arrives or the ledger rewinds; the bar's segments and the banks grow to their new sizes. Reduced motion places them. ## Props | Prop | Type | Default | Description | | --- | --- | --- | --- | | `label` (required) | `string` | — | The line: "Oak bar stool, natural". | | `quantity` (required) | `number` | — | | | `events` (required) | `QuantityEvent[]` | — | | | `total` | `number` | — | The line's full value (all units), for the money lane's outstanding amount. | | `currency` | `string` | — | ISO code for the default money format. | | `format` | `((amount: number) => string)` | — | Money in the host's own format; it wins over `currency`. | | `actions` | `QuantityAction[]` | — | | | `onAction` | `((id: string) => void)` | — | | | `onSplit` | `((first: number, second: number) => void)` | — | A split of allocated units into two shipments, drafted on the river: the sizes when saved. | | `splitNames` | `[string, string]` | — | The shipments' names for the split draft. Default ["A", "B"]. | | `onValidate` | `((restocked: number, damaged: number) => void)` | — | Returned units received: for each, back in stock or damaged. | | `open` | `boolean` | — | Controlled open state; omit to use defaultOpen. | | `defaultOpen` | `boolean` | — | Initial open state when uncontrolled; defaults to false. | | `onOpenChange` | `((open: boolean) => void)` | — | Reports an open-state change; no callback by default. | | `className` | `string` | — | Classes on the documented visual root; no override by default. | | `classNames` | `Partial` | — | Receives the documented native target or imperative handle; omitted by default. | ## Built from - [Button](https://beamline.io/components/button.md) - [Label](https://beamline.io/components/label.md) - [Segmented control](https://beamline.io/components/segmented-control.md) - [Select](https://beamline.io/components/select.md) - [Slider](https://beamline.io/components/slider.md) - [Spinner](https://beamline.io/components/spinner.md) - [Text morph](https://beamline.io/components/text-morph.md) - [Tooltip](https://beamline.io/components/tooltip.md) ## Used in - [Purchase orders](https://beamline.io/components/purchase-orders.md) ## Import ```tsx import { QuantityRiver } from "@beamline/quantity-river"; ``` ## Get it Quantity river is part of Beamline UI. Install the parts you need in your React app as compiled packages or editable source. 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