import { ElementRef, SimpleChanges, EventEmitter, NgZone } from '@angular/core';
import { Platform } from '@angular/cdk/platform';
import { DateSelectionEvent } from './../../datepicker.component';
import * as i0 from "@angular/core";
export declare class CalendarCell<D = any> {
    value: number;
    displayValue: string;
    ariaLabel: string;
    enabled: boolean;
    compareValue: number;
    rawValue?: D | undefined;
    constructor(value: number, displayValue: string, ariaLabel: string, enabled: boolean, compareValue?: number, rawValue?: D | undefined);
}
export declare class CalendarBody {
    private ngZone;
    private platform;
    private elementRef;
    constructor(ngZone: NgZone, platform: Platform, elementRef: ElementRef);
    /** The label for the table. (e.g. "Jan 2017"). */
    label: string;
    /** The cells to display in the table. */
    rows: CalendarCell[][];
    /** The value in the table that corresponds to today. */
    todayValue: number;
    /** Start value of the selected date range. */
    startValue: number;
    /** End value of the selected date range. */
    endValue: number;
    /** The minimum number of free cells needed to fit the label in the first row. */
    labelMinRequiredCells: number;
    /** The number of columns in the table. */
    numCols: number;
    /** The cell number of the active cell in the table. */
    activeCell: number;
    /** Whether a range is being selected. */
    isRange: boolean;
    /**
     * The aspect ratio (width / height) to use for the cells in the table. This aspect ratio will be
     * maintained even as the table resizes.
     */
    cellAspectRatio: number;
    /** Start of the comparison range. */
    comparisonStart: number | null;
    /** End of the comparison range. */
    comparisonEnd: number | null;
    /** Start of the preview range. */
    previewStart: number | null;
    /** End of the preview range. */
    previewEnd: number | null;
    /** ARIA Accessible name of the StartDate */
    startDateAccessibleName: string | null;
    /** ARIA Accessible name of the EndDate */
    endDateAccessibleName: string | null;
    /** Emits when a new value is selected. */
    selectedValueChange: EventEmitter<DateSelectionEvent<number>>;
    /** Emits when the preview has changed as a result of a user action. */
    previewChange: EventEmitter<DateSelectionEvent<CalendarCell<any> | null>>;
    activeDateChange: EventEmitter<DateSelectionEvent<number>>;
    /** Emits the date at the possible start of a drag event. */
    dragStarted: EventEmitter<DateSelectionEvent<Date>>;
    /** Emits the date at the conclusion of a drag, or null if mouse was not released on a date. */
    dragEnded: EventEmitter<DateSelectionEvent<Date | null>>;
    /** The number of blank cells to put at the beginning for the first row. */
    firstRowOffset: number;
    /** Padding for the individual date cells. */
    cellPadding: string;
    private id;
    startDateLabelId: string;
    endDateLabelId: string;
    /** Width of an individual cell. */
    cellWidth: string;
    /**
      * Used to skip the next focus event when rendering the preview range.
      * We need a flag like this, because some browsers fire focus events asynchronously.
    */
    private skipNextFocus;
    /**
      * Used to focus the active cell after change detection has run.
    */
    private focusActiveCellAfterViewChecked;
    private didDragSinceMouseDown;
    private activeCapturingEventOptions;
    private passiveCapturingEventOptions;
    private passiveEventOptions;
    ngOnChanges(changes: SimpleChanges): void;
    ngAfterViewChecked(): void;
    ngOnDestroy(): void;
    trackRow: (row: CalendarCell[]) => CalendarCell<any>[];
    /** Called when a cell is clicked. */
    cellClicked(cell: CalendarCell, event: MouseEvent): void;
    emitActiveDateChange(cell: CalendarCell, event: FocusEvent): void;
    /** Returns whether a cell should be marked as selected. */
    isSelected(value: number): boolean;
    /** Returns whether a cell is active. */
    isActiveCell(rowIndex: number, colIndex: number): boolean;
    focusActiveCell(movePreview?: boolean): void;
    /** Focuses the active cell after change detection has run and the microtask queue is empty. */
    scheduleFocusActiveCellAfterViewChecked(): void;
    /** Gets whether a value is the start of the main range. */
    isRangeStart(value: number): boolean;
    /** Gets whether a value is the end of the main range. */
    isRangeEnd(value: number): boolean;
    /** Gets whether a value is within the currently-selected range. */
    isCellInRange(value: number): boolean;
    /** Gets whether a value is the start of the preview range. */
    isPreviewStart(value: number): boolean;
    /** Gets whether a value is the end of the preview range. */
    isPreviewEnd(value: number): boolean;
    /** Gets whether a value is inside the preview range. */
    isInPreview(value: number): boolean;
    /** Gets ids of aria descriptions for the start and end of a date range. */
    getDescribedby(value: number): string | null;
    /**
     * Event handler for when the user enters an element
     * inside the calendar body (e.g. by hovering in or focus).
     */
    private enterHandler;
    private touchmoveHandler;
    /**
     * Event handler for when the user's pointer leaves an element
     * inside the calendar body (e.g. by hovering out or blurring).
     */
    private leaveHandler;
    /**
     * Triggered on mousedown or touchstart on a date cell.
     * Respsonsible for starting a drag sequence.
     */
    private mousedownHandler;
    /** Triggered on mouseup anywhere. Respsonsible for ending a drag sequence. */
    private mouseupHandler;
    /** Triggered on touchend anywhere. Respsonsible for ending a drag sequence. */
    private touchendHandler;
    /** Finds the CalendarCell that corresponds to a DOM node. */
    private getCellFromElement;
    /**
   * Gets the date table cell element that is or contains the specified element.
   * Or returns null if element is not part of a date cell.
   */
    private getCellElement;
    /** Checks whether a node is a table cell element. */
    private isTableCell;
    /** Checks whether a value is the start of a range. */
    private isStart;
    /** Checks whether a value is the end of a range. */
    private isEnd;
    private isInRange;
    /**
     * Extracts the element that actually corresponds to a touch event's location
     * (rather than the element that initiated the sequence of touch events).
     */
    private getActualTouchTarget;
    static ɵfac: i0.ɵɵFactoryDeclaration<CalendarBody, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<CalendarBody, "[calendar-body]", never, { "label": { "alias": "label"; "required": false; }; "rows": { "alias": "rows"; "required": false; }; "todayValue": { "alias": "todayValue"; "required": false; }; "startValue": { "alias": "startValue"; "required": false; }; "endValue": { "alias": "endValue"; "required": false; }; "labelMinRequiredCells": { "alias": "labelMinRequiredCells"; "required": false; }; "numCols": { "alias": "numCols"; "required": false; }; "activeCell": { "alias": "activeCell"; "required": false; }; "isRange": { "alias": "isRange"; "required": false; }; "cellAspectRatio": { "alias": "cellAspectRatio"; "required": false; }; "comparisonStart": { "alias": "comparisonStart"; "required": false; }; "comparisonEnd": { "alias": "comparisonEnd"; "required": false; }; "previewStart": { "alias": "previewStart"; "required": false; }; "previewEnd": { "alias": "previewEnd"; "required": false; }; "startDateAccessibleName": { "alias": "startDateAccessibleName"; "required": false; }; "endDateAccessibleName": { "alias": "endDateAccessibleName"; "required": false; }; }, { "selectedValueChange": "selectedValueChange"; "previewChange": "previewChange"; "activeDateChange": "activeDateChange"; "dragStarted": "dragStarted"; "dragEnded": "dragEnded"; }, never, never, true, never>;
}