ag-grid/src/ts/rendering/columnHoverService.ts

Advanced Data Grid / Data Table supporting Javascript / React / AngularJS / Web Components

import {EventService} from "../eventService";
import {Autowired, Bean, PostConstruct} from "../context/context";
import {Events, CellEvent, ColumnHoverChangedEvent} from "../events";
import {Column} from "../entities/column";
import {BeanStub} from "../context/beanStub";
import {ColumnApi} from "../columnController/columnApi";
import {GridApi} from "../gridApi";

@Bean('columnHoverService')
export class ColumnHoverService extends BeanStub {

    @Autowired('eventService') private eventService: EventService;
    @Autowired('columnApi') private columnApi: ColumnApi;
    @Autowired('gridApi') private gridApi: GridApi;

    private selectedColumns: Column[];

    public setMouseOver(columns: Column[]): void {
        this.selectedColumns = columns;
        let event: ColumnHoverChangedEvent = {
            type: Events.EVENT_COLUMN_HOVER_CHANGED,
            api: this.gridApi,
            columnApi: this.columnApi
        };
        this.eventService.dispatchEvent(event);
    }

    public clearMouseOver(): void {
        this.selectedColumns = null;
        let event: ColumnHoverChangedEvent = {
            type: Events.EVENT_COLUMN_HOVER_CHANGED,
            api: this.gridApi,
            columnApi: this.columnApi
        };
        this.eventService.dispatchEvent(event);
    }

    public isHovered(column: Column): boolean {
        return this.selectedColumns && this.selectedColumns.indexOf(column) >= 0;
    }
}