import { SelectionStrategy } from './selection.strategy';
export declare class RowSelectionStrategy<T> extends SelectionStrategy<T> {
    private _selection;
    /**
     * By default on shift click the browser will highlight
     * text. This looks bad and we don't want this to occur
     */
    mousedown(event: MouseEvent): void;
    /**
     * When a row is clicked we want to handle selection
     */
    click(event: MouseEvent, data: T): void;
    /**
     * To support full keyboard control we need to support the following:
     * 1. Arrow keys to navigate up and down
     * 2. Spacebar to toggle selection
     * 3. Shift + Arrow keys to multiple select
     * 4. Ctrl + Arrow keys to allow retained selection and navigation
     */
    keydown(event: KeyboardEvent, data: T): void;
    /**
     * Override the standard toggle function to store or clear the
     * most recently selected item
     */
    toggle(data: T): void;
    /**
     * Clear all other selected items and select only
     * the most recently selected item
     */
    private singleSelect;
    /**
     * Handle multiple selection:
     * 1. If no start item selected - select it
     * 2. If a start item has been selected - select all in between
     * 3. If a start and end item have been selected clear the range and then select the new range
     */
    protected multipleSelect(data: T): void;
    /**
     * Set the selection start point. If there was previously a
     * selection end point then clear it as this is a new selection
     */
    private setSelectionStart;
    /**
     * Set the selection end point
     */
    private setSelectionEnd;
    /**
     * Clear both start and end selection points
     */
    protected clearSelection(deactivate?: boolean): void;
    /**
     * Determine all the items affected by the current selection.
     * Note that the end point may be above the start point so
     * we need to account for this.
     */
    private getSelectedItems;
    /**
     * Activate the sibling item when arrow keys are pressed
     */
    private navigate;
}
export interface Selection<T> {
    start: T;
    end: T;
}