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- import { RowNode } from "../entities/rowNode";
- export interface IViewportDatasource {
- /** Gets called exactly once before viewPort is used. Passes methods to be used to tell viewPort of data loads / changes. */
- init(params: IViewportDatasourceParams): void;
- /** Tell the viewport what the scroll position of the grid is, so it knows what rows it has to get */
- setViewportRange(firstRow: number, lastRow: number): void;
- /** Gets called once when viewPort is no longer used. If you need to do any cleanup, do it here. */
- destroy?(): void;
- }
- export interface IViewportDatasourceParams {
- /** datasource calls this method when the total row count changes. This in turn sets the height of the grids vertical scroll. */
- setRowCount: (count: number, keepRenderedRows: boolean) => void;
- /** datasource calls this when new data arrives. The grid then updates the provided rows. The rows are mapped [rowIndex]=>rowData].*/
- setRowData: (rowData: {
- [key: number]: any;
- }) => void;
- /** datasource calls this when it wants a row node - typically used when it wants to update the row node */
- getRow: (rowIndex: number) => RowNode;
- }
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