VLEX/BPM-UI/node_modules/@angular/material/esm2015/datepicker.js

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { Injectable, NgModule, ChangeDetectionStrategy, ChangeDetectorRef, Component, EventEmitter, forwardRef, Inject, Input, Optional, Output, ViewChild, ViewEncapsulation, ElementRef, NgZone, InjectionToken, ViewContainerRef, Directive, Attribute, ContentChild, ɵɵdefineInjectable } from '@angular/core';
import { Subject, merge, Subscription, of } from 'rxjs';
import { take, filter } from 'rxjs/operators';
import { DOWN_ARROW, END, ENTER, HOME, LEFT_ARROW, PAGE_DOWN, PAGE_UP, RIGHT_ARROW, UP_ARROW, SPACE, ESCAPE } from '@angular/cdk/keycodes';
import { DateAdapter, MAT_DATE_FORMATS, mixinColor } from '@angular/material/core';
import { Directionality } from '@angular/cdk/bidi';
import { ComponentPortal, PortalModule } from '@angular/cdk/portal';
import { animate, state, style, transition, trigger } from '@angular/animations';
import { coerceBooleanProperty } from '@angular/cdk/coercion';
import { Overlay, OverlayConfig, OverlayModule } from '@angular/cdk/overlay';
import { DOCUMENT, CommonModule } from '@angular/common';
import { MatDialog, MatDialogModule } from '@angular/material/dialog';
import { NG_VALIDATORS, NG_VALUE_ACCESSOR, Validators } from '@angular/forms';
import { MatFormField } from '@angular/material/form-field';
import { MAT_INPUT_VALUE_ACCESSOR } from '@angular/material/input';
import { MatButtonModule } from '@angular/material/button';
import { A11yModule } from '@angular/cdk/a11y';

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * \@docs-private
 * @param {?} provider
 * @return {?}
 */
function createMissingDateImplError(provider) {
    return Error(`MatDatepicker: No provider found for ${provider}. You must import one of the following ` +
        `modules at your application root: MatNativeDateModule, MatMomentDateModule, or provide a ` +
        `custom implementation.`);
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Datepicker data that requires internationalization.
 */
class MatDatepickerIntl {
    constructor() {
        /**
         * Stream that emits whenever the labels here are changed. Use this to notify
         * components if the labels have changed after initialization.
         */
        this.changes = new Subject();
        /**
         * A label for the calendar popup (used by screen readers).
         */
        this.calendarLabel = 'Calendar';
        /**
         * A label for the button used to open the calendar popup (used by screen readers).
         */
        this.openCalendarLabel = 'Open calendar';
        /**
         * A label for the previous month button (used by screen readers).
         */
        this.prevMonthLabel = 'Previous month';
        /**
         * A label for the next month button (used by screen readers).
         */
        this.nextMonthLabel = 'Next month';
        /**
         * A label for the previous year button (used by screen readers).
         */
        this.prevYearLabel = 'Previous year';
        /**
         * A label for the next year button (used by screen readers).
         */
        this.nextYearLabel = 'Next year';
        /**
         * A label for the previous multi-year button (used by screen readers).
         */
        this.prevMultiYearLabel = 'Previous 20 years';
        /**
         * A label for the next multi-year button (used by screen readers).
         */
        this.nextMultiYearLabel = 'Next 20 years';
        /**
         * A label for the 'switch to month view' button (used by screen readers).
         */
        this.switchToMonthViewLabel = 'Choose date';
        /**
         * A label for the 'switch to year view' button (used by screen readers).
         */
        this.switchToMultiYearViewLabel = 'Choose month and year';
    }
}
MatDatepickerIntl.decorators = [
    { type: Injectable, args: [{ providedIn: 'root' },] },
];
/** @nocollapse */ MatDatepickerIntl.ngInjectableDef = ɵɵdefineInjectable({ factory: function MatDatepickerIntl_Factory() { return new MatDatepickerIntl(); }, token: MatDatepickerIntl, providedIn: "root" });

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * An internal class that represents the data corresponding to a single calendar cell.
 * \@docs-private
 */
class MatCalendarCell {
    /**
     * @param {?} value
     * @param {?} displayValue
     * @param {?} ariaLabel
     * @param {?} enabled
     * @param {?=} cssClasses
     */
    constructor(value, displayValue, ariaLabel, enabled, cssClasses) {
        this.value = value;
        this.displayValue = displayValue;
        this.ariaLabel = ariaLabel;
        this.enabled = enabled;
        this.cssClasses = cssClasses;
    }
}
/**
 * An internal component used to display calendar data in a table.
 * \@docs-private
 */
class MatCalendarBody {
    /**
     * @param {?} _elementRef
     * @param {?} _ngZone
     */
    constructor(_elementRef, _ngZone) {
        this._elementRef = _elementRef;
        this._ngZone = _ngZone;
        /**
         * The number of columns in the table.
         */
        this.numCols = 7;
        /**
         * The cell number of the active cell in the table.
         */
        this.activeCell = 0;
        /**
         * The aspect ratio (width / height) to use for the cells in the table. This aspect ratio will be
         * maintained even as the table resizes.
         */
        this.cellAspectRatio = 1;
        /**
         * Emits when a new value is selected.
         */
        this.selectedValueChange = new EventEmitter();
    }
    /**
     * @param {?} cell
     * @return {?}
     */
    _cellClicked(cell) {
        if (cell.enabled) {
            this.selectedValueChange.emit(cell.value);
        }
    }
    /**
     * @param {?} changes
     * @return {?}
     */
    ngOnChanges(changes) {
        /** @type {?} */
        const columnChanges = changes['numCols'];
        const { rows, numCols } = this;
        if (changes['rows'] || columnChanges) {
            this._firstRowOffset = rows && rows.length && rows[0].length ? numCols - rows[0].length : 0;
        }
        if (changes['cellAspectRatio'] || columnChanges || !this._cellPadding) {
            this._cellPadding = `${50 * this.cellAspectRatio / numCols}%`;
        }
        if (columnChanges || !this._cellWidth) {
            this._cellWidth = `${100 / numCols}%`;
        }
    }
    /**
     * @param {?} rowIndex
     * @param {?} colIndex
     * @return {?}
     */
    _isActiveCell(rowIndex, colIndex) {
        /** @type {?} */
        let cellNumber = rowIndex * this.numCols + colIndex;
        // Account for the fact that the first row may not have as many cells.
        if (rowIndex) {
            cellNumber -= this._firstRowOffset;
        }
        return cellNumber == this.activeCell;
    }
    /**
     * Focuses the active cell after the microtask queue is empty.
     * @return {?}
     */
    _focusActiveCell() {
        this._ngZone.runOutsideAngular((/**
         * @return {?}
         */
        () => {
            this._ngZone.onStable.asObservable().pipe(take(1)).subscribe((/**
             * @return {?}
             */
            () => {
                /** @type {?} */
                const activeCell = this._elementRef.nativeElement.querySelector('.mat-calendar-body-active');
                if (activeCell) {
                    activeCell.focus();
                }
            }));
        }));
    }
}
MatCalendarBody.decorators = [
    { type: Component, args: [{selector: '[mat-calendar-body]',
                template: "<tr *ngIf=\"_firstRowOffset < labelMinRequiredCells\" aria-hidden=\"true\"><td class=\"mat-calendar-body-label\" [attr.colspan]=\"numCols\" [style.paddingTop]=\"_cellPadding\" [style.paddingBottom]=\"_cellPadding\">{{label}}</td></tr><tr *ngFor=\"let row of rows; let rowIndex = index\" role=\"row\"><td *ngIf=\"rowIndex === 0 && _firstRowOffset\" aria-hidden=\"true\" class=\"mat-calendar-body-label\" [attr.colspan]=\"_firstRowOffset\" [style.paddingTop]=\"_cellPadding\" [style.paddingBottom]=\"_cellPadding\">{{_firstRowOffset >= labelMinRequiredCells ? label : ''}}</td><td *ngFor=\"let item of row; let colIndex = index\" role=\"gridcell\" class=\"mat-calendar-body-cell\" [ngClass]=\"item.cssClasses\" [tabindex]=\"_isActiveCell(rowIndex, colIndex) ? 0 : -1\" [class.mat-calendar-body-disabled]=\"!item.enabled\" [class.mat-calendar-body-active]=\"_isActiveCell(rowIndex, colIndex)\" [attr.aria-label]=\"item.ariaLabel\" [attr.aria-disabled]=\"!item.enabled || null\" [attr.aria-selected]=\"selectedValue === item.value\" (click)=\"_cellClicked(item)\" [style.width]=\"_cellWidth\" [style.paddingTop]=\"_cellPadding\" role=\"button\" [style.paddingBottom]=\"_cellPadding\"><div class=\"mat-calendar-body-cell-content\" [class.mat-calendar-body-selected]=\"selectedValue === item.value\" [class.mat-calendar-body-today]=\"todayValue === item.value\">{{item.displayValue}}</div></td></tr>",
                styles: [".mat-calendar-body{min-width:224px}.mat-calendar-body-label{height:0;line-height:0;text-align:left;padding-left:4.71429%;padding-right:4.71429%}.mat-calendar-body-cell{position:relative;height:0;line-height:0;text-align:center;outline:0;cursor:pointer}.mat-calendar-body-disabled{cursor:default}.mat-calendar-body-cell-content{position:absolute;top:5%;left:5%;display:flex;align-items:center;justify-content:center;box-sizing:border-box;width:90%;height:90%;line-height:1;border-width:1px;border-style:solid;border-radius:999px}@media (-ms-high-contrast:active){.mat-calendar-body-cell-content{border:none}}@media (-ms-high-contrast:active){.mat-calendar-body-selected,.mat-datepicker-popup:not(:empty){outline:solid 1px}.mat-calendar-body-today{outline:dotted 1px}.cdk-keyboard-focused .mat-calendar-body-active>.mat-calendar-body-cell-content:not(.mat-calendar-body-selected),.cdk-program-focused .mat-calendar-body-active>.mat-calendar-body-cell-content:not(.mat-calendar-body-selected){outline:dotted 2px}}[dir=rtl] .mat-calendar-body-label{text-align:right}"],
                host: {
                    'class': 'mat-calendar-body',
                    'role': 'grid',
                    'aria-readonly': 'true'
                },
                exportAs: 'matCalendarBody',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
            },] },
];
/** @nocollapse */
MatCalendarBody.ctorParameters = () => [
    { type: ElementRef },
    { type: NgZone }
];
MatCalendarBody.propDecorators = {
    label: [{ type: Input }],
    rows: [{ type: Input }],
    todayValue: [{ type: Input }],
    selectedValue: [{ type: Input }],
    labelMinRequiredCells: [{ type: Input }],
    numCols: [{ type: Input }],
    activeCell: [{ type: Input }],
    cellAspectRatio: [{ type: Input }],
    selectedValueChange: [{ type: Output }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/** @type {?} */
const DAYS_PER_WEEK = 7;
/**
 * An internal component used to display a single month in the datepicker.
 * \@docs-private
 * @template D
 */
class MatMonthView {
    /**
     * @param {?} _changeDetectorRef
     * @param {?} _dateFormats
     * @param {?} _dateAdapter
     * @param {?=} _dir
     */
    constructor(_changeDetectorRef, _dateFormats, _dateAdapter, _dir) {
        this._changeDetectorRef = _changeDetectorRef;
        this._dateFormats = _dateFormats;
        this._dateAdapter = _dateAdapter;
        this._dir = _dir;
        /**
         * Emits when a new date is selected.
         */
        this.selectedChange = new EventEmitter();
        /**
         * Emits when any date is selected.
         */
        this._userSelection = new EventEmitter();
        /**
         * Emits when any date is activated.
         */
        this.activeDateChange = new EventEmitter();
        if (!this._dateAdapter) {
            throw createMissingDateImplError('DateAdapter');
        }
        if (!this._dateFormats) {
            throw createMissingDateImplError('MAT_DATE_FORMATS');
        }
        this._activeDate = this._dateAdapter.today();
    }
    /**
     * The date to display in this month view (everything other than the month and year is ignored).
     * @return {?}
     */
    get activeDate() { return this._activeDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set activeDate(value) {
        /** @type {?} */
        const oldActiveDate = this._activeDate;
        /** @type {?} */
        const validDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value)) || this._dateAdapter.today();
        this._activeDate = this._dateAdapter.clampDate(validDate, this.minDate, this.maxDate);
        if (!this._hasSameMonthAndYear(oldActiveDate, this._activeDate)) {
            this._init();
        }
    }
    /**
     * The currently selected date.
     * @return {?}
     */
    get selected() { return this._selected; }
    /**
     * @param {?} value
     * @return {?}
     */
    set selected(value) {
        this._selected = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
        this._selectedDate = this._getDateInCurrentMonth(this._selected);
    }
    /**
     * The minimum selectable date.
     * @return {?}
     */
    get minDate() { return this._minDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set minDate(value) {
        this._minDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * The maximum selectable date.
     * @return {?}
     */
    get maxDate() { return this._maxDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set maxDate(value) {
        this._maxDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * @return {?}
     */
    ngAfterContentInit() {
        this._init();
    }
    /**
     * Handles when a new date is selected.
     * @param {?} date
     * @return {?}
     */
    _dateSelected(date) {
        if (this._selectedDate != date) {
            /** @type {?} */
            const selectedYear = this._dateAdapter.getYear(this.activeDate);
            /** @type {?} */
            const selectedMonth = this._dateAdapter.getMonth(this.activeDate);
            /** @type {?} */
            const selectedDate = this._dateAdapter.createDate(selectedYear, selectedMonth, date);
            this.selectedChange.emit(selectedDate);
        }
        this._userSelection.emit();
    }
    /**
     * Handles keydown events on the calendar body when calendar is in month view.
     * @param {?} event
     * @return {?}
     */
    _handleCalendarBodyKeydown(event) {
        // TODO(mmalerba): We currently allow keyboard navigation to disabled dates, but just prevent
        // disabled ones from being selected. This may not be ideal, we should look into whether
        // navigation should skip over disabled dates, and if so, how to implement that efficiently.
        // TODO(mmalerba): We currently allow keyboard navigation to disabled dates, but just prevent
        // disabled ones from being selected. This may not be ideal, we should look into whether
        // navigation should skip over disabled dates, and if so, how to implement that efficiently.
        /** @type {?} */
        const oldActiveDate = this._activeDate;
        /** @type {?} */
        const isRtl = this._isRtl();
        switch (event.keyCode) {
            case LEFT_ARROW:
                this.activeDate = this._dateAdapter.addCalendarDays(this._activeDate, isRtl ? 1 : -1);
                break;
            case RIGHT_ARROW:
                this.activeDate = this._dateAdapter.addCalendarDays(this._activeDate, isRtl ? -1 : 1);
                break;
            case UP_ARROW:
                this.activeDate = this._dateAdapter.addCalendarDays(this._activeDate, -7);
                break;
            case DOWN_ARROW:
                this.activeDate = this._dateAdapter.addCalendarDays(this._activeDate, 7);
                break;
            case HOME:
                this.activeDate = this._dateAdapter.addCalendarDays(this._activeDate, 1 - this._dateAdapter.getDate(this._activeDate));
                break;
            case END:
                this.activeDate = this._dateAdapter.addCalendarDays(this._activeDate, (this._dateAdapter.getNumDaysInMonth(this._activeDate) -
                    this._dateAdapter.getDate(this._activeDate)));
                break;
            case PAGE_UP:
                this.activeDate = event.altKey ?
                    this._dateAdapter.addCalendarYears(this._activeDate, -1) :
                    this._dateAdapter.addCalendarMonths(this._activeDate, -1);
                break;
            case PAGE_DOWN:
                this.activeDate = event.altKey ?
                    this._dateAdapter.addCalendarYears(this._activeDate, 1) :
                    this._dateAdapter.addCalendarMonths(this._activeDate, 1);
                break;
            case ENTER:
            case SPACE:
                if (!this.dateFilter || this.dateFilter(this._activeDate)) {
                    this._dateSelected(this._dateAdapter.getDate(this._activeDate));
                    this._userSelection.emit();
                    // Prevent unexpected default actions such as form submission.
                    event.preventDefault();
                }
                return;
            default:
                // Don't prevent default or focus active cell on keys that we don't explicitly handle.
                return;
        }
        if (this._dateAdapter.compareDate(oldActiveDate, this.activeDate)) {
            this.activeDateChange.emit(this.activeDate);
        }
        this._focusActiveCell();
        // Prevent unexpected default actions such as form submission.
        event.preventDefault();
    }
    /**
     * Initializes this month view.
     * @return {?}
     */
    _init() {
        this._selectedDate = this._getDateInCurrentMonth(this.selected);
        this._todayDate = this._getDateInCurrentMonth(this._dateAdapter.today());
        this._monthLabel =
            this._dateAdapter.getMonthNames('short')[this._dateAdapter.getMonth(this.activeDate)]
                .toLocaleUpperCase();
        /** @type {?} */
        let firstOfMonth = this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), this._dateAdapter.getMonth(this.activeDate), 1);
        this._firstWeekOffset =
            (DAYS_PER_WEEK + this._dateAdapter.getDayOfWeek(firstOfMonth) -
                this._dateAdapter.getFirstDayOfWeek()) % DAYS_PER_WEEK;
        this._initWeekdays();
        this._createWeekCells();
        this._changeDetectorRef.markForCheck();
    }
    /**
     * Focuses the active cell after the microtask queue is empty.
     * @return {?}
     */
    _focusActiveCell() {
        this._matCalendarBody._focusActiveCell();
    }
    /**
     * Initializes the weekdays.
     * @private
     * @return {?}
     */
    _initWeekdays() {
        /** @type {?} */
        const firstDayOfWeek = this._dateAdapter.getFirstDayOfWeek();
        /** @type {?} */
        const narrowWeekdays = this._dateAdapter.getDayOfWeekNames('narrow');
        /** @type {?} */
        const longWeekdays = this._dateAdapter.getDayOfWeekNames('long');
        // Rotate the labels for days of the week based on the configured first day of the week.
        /** @type {?} */
        let weekdays = longWeekdays.map((/**
         * @param {?} long
         * @param {?} i
         * @return {?}
         */
        (long, i) => {
            return { long, narrow: narrowWeekdays[i] };
        }));
        this._weekdays = weekdays.slice(firstDayOfWeek).concat(weekdays.slice(0, firstDayOfWeek));
    }
    /**
     * Creates MatCalendarCells for the dates in this month.
     * @private
     * @return {?}
     */
    _createWeekCells() {
        /** @type {?} */
        const daysInMonth = this._dateAdapter.getNumDaysInMonth(this.activeDate);
        /** @type {?} */
        const dateNames = this._dateAdapter.getDateNames();
        this._weeks = [[]];
        for (let i = 0, cell = this._firstWeekOffset; i < daysInMonth; i++, cell++) {
            if (cell == DAYS_PER_WEEK) {
                this._weeks.push([]);
                cell = 0;
            }
            /** @type {?} */
            const date = this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), this._dateAdapter.getMonth(this.activeDate), i + 1);
            /** @type {?} */
            const enabled = this._shouldEnableDate(date);
            /** @type {?} */
            const ariaLabel = this._dateAdapter.format(date, this._dateFormats.display.dateA11yLabel);
            /** @type {?} */
            const cellClasses = this.dateClass ? this.dateClass(date) : undefined;
            this._weeks[this._weeks.length - 1]
                .push(new MatCalendarCell(i + 1, dateNames[i], ariaLabel, enabled, cellClasses));
        }
    }
    /**
     * Date filter for the month
     * @private
     * @param {?} date
     * @return {?}
     */
    _shouldEnableDate(date) {
        return !!date &&
            (!this.dateFilter || this.dateFilter(date)) &&
            (!this.minDate || this._dateAdapter.compareDate(date, this.minDate) >= 0) &&
            (!this.maxDate || this._dateAdapter.compareDate(date, this.maxDate) <= 0);
    }
    /**
     * Gets the date in this month that the given Date falls on.
     * Returns null if the given Date is in another month.
     * @private
     * @param {?} date
     * @return {?}
     */
    _getDateInCurrentMonth(date) {
        return date && this._hasSameMonthAndYear(date, this.activeDate) ?
            this._dateAdapter.getDate(date) : null;
    }
    /**
     * Checks whether the 2 dates are non-null and fall within the same month of the same year.
     * @private
     * @param {?} d1
     * @param {?} d2
     * @return {?}
     */
    _hasSameMonthAndYear(d1, d2) {
        return !!(d1 && d2 && this._dateAdapter.getMonth(d1) == this._dateAdapter.getMonth(d2) &&
            this._dateAdapter.getYear(d1) == this._dateAdapter.getYear(d2));
    }
    /**
     * @private
     * @param {?} obj The object to check.
     * @return {?} The given object if it is both a date instance and valid, otherwise null.
     */
    _getValidDateOrNull(obj) {
        return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;
    }
    /**
     * Determines whether the user has the RTL layout direction.
     * @private
     * @return {?}
     */
    _isRtl() {
        return this._dir && this._dir.value === 'rtl';
    }
}
MatMonthView.decorators = [
    { type: Component, args: [{selector: 'mat-month-view',
                template: "<table class=\"mat-calendar-table\" role=\"presentation\"><thead class=\"mat-calendar-table-header\"><tr><th *ngFor=\"let day of _weekdays\" [attr.aria-label]=\"day.long\">{{day.narrow}}</th></tr><tr><th class=\"mat-calendar-table-header-divider\" colspan=\"7\" aria-hidden=\"true\"></th></tr></thead><tbody mat-calendar-body [label]=\"_monthLabel\" [rows]=\"_weeks\" [todayValue]=\"_todayDate\" [selectedValue]=\"_selectedDate\" [labelMinRequiredCells]=\"3\" [activeCell]=\"_dateAdapter.getDate(activeDate) - 1\" (selectedValueChange)=\"_dateSelected($event)\" (keydown)=\"_handleCalendarBodyKeydown($event)\"></tbody></table>",
                exportAs: 'matMonthView',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush
            },] },
];
/** @nocollapse */
MatMonthView.ctorParameters = () => [
    { type: ChangeDetectorRef },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_FORMATS,] }] },
    { type: DateAdapter, decorators: [{ type: Optional }] },
    { type: Directionality, decorators: [{ type: Optional }] }
];
MatMonthView.propDecorators = {
    activeDate: [{ type: Input }],
    selected: [{ type: Input }],
    minDate: [{ type: Input }],
    maxDate: [{ type: Input }],
    dateFilter: [{ type: Input }],
    dateClass: [{ type: Input }],
    selectedChange: [{ type: Output }],
    _userSelection: [{ type: Output }],
    activeDateChange: [{ type: Output }],
    _matCalendarBody: [{ type: ViewChild, args: [MatCalendarBody, { static: false },] }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/** @type {?} */
const yearsPerPage = 24;
/** @type {?} */
const yearsPerRow = 4;
/**
 * An internal component used to display a year selector in the datepicker.
 * \@docs-private
 * @template D
 */
class MatMultiYearView {
    /**
     * @param {?} _changeDetectorRef
     * @param {?} _dateAdapter
     * @param {?=} _dir
     */
    constructor(_changeDetectorRef, _dateAdapter, _dir) {
        this._changeDetectorRef = _changeDetectorRef;
        this._dateAdapter = _dateAdapter;
        this._dir = _dir;
        /**
         * Emits when a new year is selected.
         */
        this.selectedChange = new EventEmitter();
        /**
         * Emits the selected year. This doesn't imply a change on the selected date
         */
        this.yearSelected = new EventEmitter();
        /**
         * Emits when any date is activated.
         */
        this.activeDateChange = new EventEmitter();
        if (!this._dateAdapter) {
            throw createMissingDateImplError('DateAdapter');
        }
        this._activeDate = this._dateAdapter.today();
    }
    /**
     * The date to display in this multi-year view (everything other than the year is ignored).
     * @return {?}
     */
    get activeDate() { return this._activeDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set activeDate(value) {
        /** @type {?} */
        let oldActiveDate = this._activeDate;
        /** @type {?} */
        const validDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value)) || this._dateAdapter.today();
        this._activeDate = this._dateAdapter.clampDate(validDate, this.minDate, this.maxDate);
        if (!isSameMultiYearView(this._dateAdapter, oldActiveDate, this._activeDate, this.minDate, this.maxDate)) {
            this._init();
        }
    }
    /**
     * The currently selected date.
     * @return {?}
     */
    get selected() { return this._selected; }
    /**
     * @param {?} value
     * @return {?}
     */
    set selected(value) {
        this._selected = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
        this._selectedYear = this._selected && this._dateAdapter.getYear(this._selected);
    }
    /**
     * The minimum selectable date.
     * @return {?}
     */
    get minDate() { return this._minDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set minDate(value) {
        this._minDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * The maximum selectable date.
     * @return {?}
     */
    get maxDate() { return this._maxDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set maxDate(value) {
        this._maxDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * @return {?}
     */
    ngAfterContentInit() {
        this._init();
    }
    /**
     * Initializes this multi-year view.
     * @return {?}
     */
    _init() {
        this._todayYear = this._dateAdapter.getYear(this._dateAdapter.today());
        // We want a range years such that we maximize the number of
        // enabled dates visible at once. This prevents issues where the minimum year
        // is the last item of a page OR the maximum year is the first item of a page.
        // The offset from the active year to the "slot" for the starting year is the
        // *actual* first rendered year in the multi-year view.
        /** @type {?} */
        const activeYear = this._dateAdapter.getYear(this._activeDate);
        /** @type {?} */
        const minYearOfPage = activeYear - getActiveOffset(this._dateAdapter, this.activeDate, this.minDate, this.maxDate);
        this._years = [];
        for (let i = 0, row = []; i < yearsPerPage; i++) {
            row.push(minYearOfPage + i);
            if (row.length == yearsPerRow) {
                this._years.push(row.map((/**
                 * @param {?} year
                 * @return {?}
                 */
                year => this._createCellForYear(year))));
                row = [];
            }
        }
        this._changeDetectorRef.markForCheck();
    }
    /**
     * Handles when a new year is selected.
     * @param {?} year
     * @return {?}
     */
    _yearSelected(year) {
        this.yearSelected.emit(this._dateAdapter.createDate(year, 0, 1));
        /** @type {?} */
        let month = this._dateAdapter.getMonth(this.activeDate);
        /** @type {?} */
        let daysInMonth = this._dateAdapter.getNumDaysInMonth(this._dateAdapter.createDate(year, month, 1));
        this.selectedChange.emit(this._dateAdapter.createDate(year, month, Math.min(this._dateAdapter.getDate(this.activeDate), daysInMonth)));
    }
    /**
     * Handles keydown events on the calendar body when calendar is in multi-year view.
     * @param {?} event
     * @return {?}
     */
    _handleCalendarBodyKeydown(event) {
        /** @type {?} */
        const oldActiveDate = this._activeDate;
        /** @type {?} */
        const isRtl = this._isRtl();
        switch (event.keyCode) {
            case LEFT_ARROW:
                this.activeDate = this._dateAdapter.addCalendarYears(this._activeDate, isRtl ? 1 : -1);
                break;
            case RIGHT_ARROW:
                this.activeDate = this._dateAdapter.addCalendarYears(this._activeDate, isRtl ? -1 : 1);
                break;
            case UP_ARROW:
                this.activeDate = this._dateAdapter.addCalendarYears(this._activeDate, -yearsPerRow);
                break;
            case DOWN_ARROW:
                this.activeDate = this._dateAdapter.addCalendarYears(this._activeDate, yearsPerRow);
                break;
            case HOME:
                this.activeDate = this._dateAdapter.addCalendarYears(this._activeDate, -getActiveOffset(this._dateAdapter, this.activeDate, this.minDate, this.maxDate));
                break;
            case END:
                this.activeDate = this._dateAdapter.addCalendarYears(this._activeDate, yearsPerPage - getActiveOffset(this._dateAdapter, this.activeDate, this.minDate, this.maxDate) - 1);
                break;
            case PAGE_UP:
                this.activeDate =
                    this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? -yearsPerPage * 10 : -yearsPerPage);
                break;
            case PAGE_DOWN:
                this.activeDate =
                    this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? yearsPerPage * 10 : yearsPerPage);
                break;
            case ENTER:
            case SPACE:
                this._yearSelected(this._dateAdapter.getYear(this._activeDate));
                break;
            default:
                // Don't prevent default or focus active cell on keys that we don't explicitly handle.
                return;
        }
        if (this._dateAdapter.compareDate(oldActiveDate, this.activeDate)) {
            this.activeDateChange.emit(this.activeDate);
        }
        this._focusActiveCell();
        // Prevent unexpected default actions such as form submission.
        event.preventDefault();
    }
    /**
     * @return {?}
     */
    _getActiveCell() {
        return getActiveOffset(this._dateAdapter, this.activeDate, this.minDate, this.maxDate);
    }
    /**
     * Focuses the active cell after the microtask queue is empty.
     * @return {?}
     */
    _focusActiveCell() {
        this._matCalendarBody._focusActiveCell();
    }
    /**
     * Creates an MatCalendarCell for the given year.
     * @private
     * @param {?} year
     * @return {?}
     */
    _createCellForYear(year) {
        /** @type {?} */
        let yearName = this._dateAdapter.getYearName(this._dateAdapter.createDate(year, 0, 1));
        return new MatCalendarCell(year, yearName, yearName, this._shouldEnableYear(year));
    }
    /**
     * Whether the given year is enabled.
     * @private
     * @param {?} year
     * @return {?}
     */
    _shouldEnableYear(year) {
        // disable if the year is greater than maxDate lower than minDate
        if (year === undefined || year === null ||
            (this.maxDate && year > this._dateAdapter.getYear(this.maxDate)) ||
            (this.minDate && year < this._dateAdapter.getYear(this.minDate))) {
            return false;
        }
        // enable if it reaches here and there's no filter defined
        if (!this.dateFilter) {
            return true;
        }
        /** @type {?} */
        const firstOfYear = this._dateAdapter.createDate(year, 0, 1);
        // If any date in the year is enabled count the year as enabled.
        for (let date = firstOfYear; this._dateAdapter.getYear(date) == year; date = this._dateAdapter.addCalendarDays(date, 1)) {
            if (this.dateFilter(date)) {
                return true;
            }
        }
        return false;
    }
    /**
     * @private
     * @param {?} obj The object to check.
     * @return {?} The given object if it is both a date instance and valid, otherwise null.
     */
    _getValidDateOrNull(obj) {
        return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;
    }
    /**
     * Determines whether the user has the RTL layout direction.
     * @private
     * @return {?}
     */
    _isRtl() {
        return this._dir && this._dir.value === 'rtl';
    }
}
MatMultiYearView.decorators = [
    { type: Component, args: [{selector: 'mat-multi-year-view',
                template: "<table class=\"mat-calendar-table\" role=\"presentation\"><thead class=\"mat-calendar-table-header\"><tr><th class=\"mat-calendar-table-header-divider\" colspan=\"4\"></th></tr></thead><tbody mat-calendar-body [rows]=\"_years\" [todayValue]=\"_todayYear\" [selectedValue]=\"_selectedYear\" [numCols]=\"4\" [cellAspectRatio]=\"4 / 7\" [activeCell]=\"_getActiveCell()\" (selectedValueChange)=\"_yearSelected($event)\" (keydown)=\"_handleCalendarBodyKeydown($event)\"></tbody></table>",
                exportAs: 'matMultiYearView',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush
            },] },
];
/** @nocollapse */
MatMultiYearView.ctorParameters = () => [
    { type: ChangeDetectorRef },
    { type: DateAdapter, decorators: [{ type: Optional }] },
    { type: Directionality, decorators: [{ type: Optional }] }
];
MatMultiYearView.propDecorators = {
    activeDate: [{ type: Input }],
    selected: [{ type: Input }],
    minDate: [{ type: Input }],
    maxDate: [{ type: Input }],
    dateFilter: [{ type: Input }],
    selectedChange: [{ type: Output }],
    yearSelected: [{ type: Output }],
    activeDateChange: [{ type: Output }],
    _matCalendarBody: [{ type: ViewChild, args: [MatCalendarBody, { static: false },] }]
};
/**
 * @template D
 * @param {?} dateAdapter
 * @param {?} date1
 * @param {?} date2
 * @param {?} minDate
 * @param {?} maxDate
 * @return {?}
 */
function isSameMultiYearView(dateAdapter, date1, date2, minDate, maxDate) {
    /** @type {?} */
    const year1 = dateAdapter.getYear(date1);
    /** @type {?} */
    const year2 = dateAdapter.getYear(date2);
    /** @type {?} */
    const startingYear = getStartingYear(dateAdapter, minDate, maxDate);
    return Math.floor((year1 - startingYear) / yearsPerPage) ===
        Math.floor((year2 - startingYear) / yearsPerPage);
}
/**
 * When the multi-year view is first opened, the active year will be in view.
 * So we compute how many years are between the active year and the *slot* where our
 * "startingYear" will render when paged into view.
 * @template D
 * @param {?} dateAdapter
 * @param {?} activeDate
 * @param {?} minDate
 * @param {?} maxDate
 * @return {?}
 */
function getActiveOffset(dateAdapter, activeDate, minDate, maxDate) {
    /** @type {?} */
    const activeYear = dateAdapter.getYear(activeDate);
    return euclideanModulo((activeYear - getStartingYear(dateAdapter, minDate, maxDate)), yearsPerPage);
}
/**
 * We pick a "starting" year such that either the maximum year would be at the end
 * or the minimum year would be at the beginning of a page.
 * @template D
 * @param {?} dateAdapter
 * @param {?} minDate
 * @param {?} maxDate
 * @return {?}
 */
function getStartingYear(dateAdapter, minDate, maxDate) {
    /** @type {?} */
    let startingYear = 0;
    if (maxDate) {
        /** @type {?} */
        const maxYear = dateAdapter.getYear(maxDate);
        startingYear = maxYear - yearsPerPage + 1;
    }
    else if (minDate) {
        startingYear = dateAdapter.getYear(minDate);
    }
    return startingYear;
}
/**
 * Gets remainder that is non-negative, even if first number is negative
 * @param {?} a
 * @param {?} b
 * @return {?}
 */
function euclideanModulo(a, b) {
    return (a % b + b) % b;
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * An internal component used to display a single year in the datepicker.
 * \@docs-private
 * @template D
 */
class MatYearView {
    /**
     * @param {?} _changeDetectorRef
     * @param {?} _dateFormats
     * @param {?} _dateAdapter
     * @param {?=} _dir
     */
    constructor(_changeDetectorRef, _dateFormats, _dateAdapter, _dir) {
        this._changeDetectorRef = _changeDetectorRef;
        this._dateFormats = _dateFormats;
        this._dateAdapter = _dateAdapter;
        this._dir = _dir;
        /**
         * Emits when a new month is selected.
         */
        this.selectedChange = new EventEmitter();
        /**
         * Emits the selected month. This doesn't imply a change on the selected date
         */
        this.monthSelected = new EventEmitter();
        /**
         * Emits when any date is activated.
         */
        this.activeDateChange = new EventEmitter();
        if (!this._dateAdapter) {
            throw createMissingDateImplError('DateAdapter');
        }
        if (!this._dateFormats) {
            throw createMissingDateImplError('MAT_DATE_FORMATS');
        }
        this._activeDate = this._dateAdapter.today();
    }
    /**
     * The date to display in this year view (everything other than the year is ignored).
     * @return {?}
     */
    get activeDate() { return this._activeDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set activeDate(value) {
        /** @type {?} */
        let oldActiveDate = this._activeDate;
        /** @type {?} */
        const validDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value)) || this._dateAdapter.today();
        this._activeDate = this._dateAdapter.clampDate(validDate, this.minDate, this.maxDate);
        if (this._dateAdapter.getYear(oldActiveDate) !== this._dateAdapter.getYear(this._activeDate)) {
            this._init();
        }
    }
    /**
     * The currently selected date.
     * @return {?}
     */
    get selected() { return this._selected; }
    /**
     * @param {?} value
     * @return {?}
     */
    set selected(value) {
        this._selected = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
        this._selectedMonth = this._getMonthInCurrentYear(this._selected);
    }
    /**
     * The minimum selectable date.
     * @return {?}
     */
    get minDate() { return this._minDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set minDate(value) {
        this._minDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * The maximum selectable date.
     * @return {?}
     */
    get maxDate() { return this._maxDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set maxDate(value) {
        this._maxDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * @return {?}
     */
    ngAfterContentInit() {
        this._init();
    }
    /**
     * Handles when a new month is selected.
     * @param {?} month
     * @return {?}
     */
    _monthSelected(month) {
        /** @type {?} */
        const normalizedDate = this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, 1);
        this.monthSelected.emit(normalizedDate);
        /** @type {?} */
        const daysInMonth = this._dateAdapter.getNumDaysInMonth(normalizedDate);
        this.selectedChange.emit(this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, Math.min(this._dateAdapter.getDate(this.activeDate), daysInMonth)));
    }
    /**
     * Handles keydown events on the calendar body when calendar is in year view.
     * @param {?} event
     * @return {?}
     */
    _handleCalendarBodyKeydown(event) {
        // TODO(mmalerba): We currently allow keyboard navigation to disabled dates, but just prevent
        // disabled ones from being selected. This may not be ideal, we should look into whether
        // navigation should skip over disabled dates, and if so, how to implement that efficiently.
        // TODO(mmalerba): We currently allow keyboard navigation to disabled dates, but just prevent
        // disabled ones from being selected. This may not be ideal, we should look into whether
        // navigation should skip over disabled dates, and if so, how to implement that efficiently.
        /** @type {?} */
        const oldActiveDate = this._activeDate;
        /** @type {?} */
        const isRtl = this._isRtl();
        switch (event.keyCode) {
            case LEFT_ARROW:
                this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, isRtl ? 1 : -1);
                break;
            case RIGHT_ARROW:
                this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, isRtl ? -1 : 1);
                break;
            case UP_ARROW:
                this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, -4);
                break;
            case DOWN_ARROW:
                this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, 4);
                break;
            case HOME:
                this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, -this._dateAdapter.getMonth(this._activeDate));
                break;
            case END:
                this.activeDate = this._dateAdapter.addCalendarMonths(this._activeDate, 11 - this._dateAdapter.getMonth(this._activeDate));
                break;
            case PAGE_UP:
                this.activeDate =
                    this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? -10 : -1);
                break;
            case PAGE_DOWN:
                this.activeDate =
                    this._dateAdapter.addCalendarYears(this._activeDate, event.altKey ? 10 : 1);
                break;
            case ENTER:
            case SPACE:
                this._monthSelected(this._dateAdapter.getMonth(this._activeDate));
                break;
            default:
                // Don't prevent default or focus active cell on keys that we don't explicitly handle.
                return;
        }
        if (this._dateAdapter.compareDate(oldActiveDate, this.activeDate)) {
            this.activeDateChange.emit(this.activeDate);
        }
        this._focusActiveCell();
        // Prevent unexpected default actions such as form submission.
        event.preventDefault();
    }
    /**
     * Initializes this year view.
     * @return {?}
     */
    _init() {
        this._selectedMonth = this._getMonthInCurrentYear(this.selected);
        this._todayMonth = this._getMonthInCurrentYear(this._dateAdapter.today());
        this._yearLabel = this._dateAdapter.getYearName(this.activeDate);
        /** @type {?} */
        let monthNames = this._dateAdapter.getMonthNames('short');
        // First row of months only contains 5 elements so we can fit the year label on the same row.
        this._months = [[0, 1, 2, 3], [4, 5, 6, 7], [8, 9, 10, 11]].map((/**
         * @param {?} row
         * @return {?}
         */
        row => row.map((/**
         * @param {?} month
         * @return {?}
         */
        month => this._createCellForMonth(month, monthNames[month])))));
        this._changeDetectorRef.markForCheck();
    }
    /**
     * Focuses the active cell after the microtask queue is empty.
     * @return {?}
     */
    _focusActiveCell() {
        this._matCalendarBody._focusActiveCell();
    }
    /**
     * Gets the month in this year that the given Date falls on.
     * Returns null if the given Date is in another year.
     * @private
     * @param {?} date
     * @return {?}
     */
    _getMonthInCurrentYear(date) {
        return date && this._dateAdapter.getYear(date) == this._dateAdapter.getYear(this.activeDate) ?
            this._dateAdapter.getMonth(date) : null;
    }
    /**
     * Creates an MatCalendarCell for the given month.
     * @private
     * @param {?} month
     * @param {?} monthName
     * @return {?}
     */
    _createCellForMonth(month, monthName) {
        /** @type {?} */
        let ariaLabel = this._dateAdapter.format(this._dateAdapter.createDate(this._dateAdapter.getYear(this.activeDate), month, 1), this._dateFormats.display.monthYearA11yLabel);
        return new MatCalendarCell(month, monthName.toLocaleUpperCase(), ariaLabel, this._shouldEnableMonth(month));
    }
    /**
     * Whether the given month is enabled.
     * @private
     * @param {?} month
     * @return {?}
     */
    _shouldEnableMonth(month) {
        /** @type {?} */
        const activeYear = this._dateAdapter.getYear(this.activeDate);
        if (month === undefined || month === null ||
            this._isYearAndMonthAfterMaxDate(activeYear, month) ||
            this._isYearAndMonthBeforeMinDate(activeYear, month)) {
            return false;
        }
        if (!this.dateFilter) {
            return true;
        }
        /** @type {?} */
        const firstOfMonth = this._dateAdapter.createDate(activeYear, month, 1);
        // If any date in the month is enabled count the month as enabled.
        for (let date = firstOfMonth; this._dateAdapter.getMonth(date) == month; date = this._dateAdapter.addCalendarDays(date, 1)) {
            if (this.dateFilter(date)) {
                return true;
            }
        }
        return false;
    }
    /**
     * Tests whether the combination month/year is after this.maxDate, considering
     * just the month and year of this.maxDate
     * @private
     * @param {?} year
     * @param {?} month
     * @return {?}
     */
    _isYearAndMonthAfterMaxDate(year, month) {
        if (this.maxDate) {
            /** @type {?} */
            const maxYear = this._dateAdapter.getYear(this.maxDate);
            /** @type {?} */
            const maxMonth = this._dateAdapter.getMonth(this.maxDate);
            return year > maxYear || (year === maxYear && month > maxMonth);
        }
        return false;
    }
    /**
     * Tests whether the combination month/year is before this.minDate, considering
     * just the month and year of this.minDate
     * @private
     * @param {?} year
     * @param {?} month
     * @return {?}
     */
    _isYearAndMonthBeforeMinDate(year, month) {
        if (this.minDate) {
            /** @type {?} */
            const minYear = this._dateAdapter.getYear(this.minDate);
            /** @type {?} */
            const minMonth = this._dateAdapter.getMonth(this.minDate);
            return year < minYear || (year === minYear && month < minMonth);
        }
        return false;
    }
    /**
     * @private
     * @param {?} obj The object to check.
     * @return {?} The given object if it is both a date instance and valid, otherwise null.
     */
    _getValidDateOrNull(obj) {
        return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;
    }
    /**
     * Determines whether the user has the RTL layout direction.
     * @private
     * @return {?}
     */
    _isRtl() {
        return this._dir && this._dir.value === 'rtl';
    }
}
MatYearView.decorators = [
    { type: Component, args: [{selector: 'mat-year-view',
                template: "<table class=\"mat-calendar-table\" role=\"presentation\"><thead class=\"mat-calendar-table-header\"><tr><th class=\"mat-calendar-table-header-divider\" colspan=\"4\"></th></tr></thead><tbody mat-calendar-body [label]=\"_yearLabel\" [rows]=\"_months\" [todayValue]=\"_todayMonth\" [selectedValue]=\"_selectedMonth\" [labelMinRequiredCells]=\"2\" [numCols]=\"4\" [cellAspectRatio]=\"4 / 7\" [activeCell]=\"_dateAdapter.getMonth(activeDate)\" (selectedValueChange)=\"_monthSelected($event)\" (keydown)=\"_handleCalendarBodyKeydown($event)\"></tbody></table>",
                exportAs: 'matYearView',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush
            },] },
];
/** @nocollapse */
MatYearView.ctorParameters = () => [
    { type: ChangeDetectorRef },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_FORMATS,] }] },
    { type: DateAdapter, decorators: [{ type: Optional }] },
    { type: Directionality, decorators: [{ type: Optional }] }
];
MatYearView.propDecorators = {
    activeDate: [{ type: Input }],
    selected: [{ type: Input }],
    minDate: [{ type: Input }],
    maxDate: [{ type: Input }],
    dateFilter: [{ type: Input }],
    selectedChange: [{ type: Output }],
    monthSelected: [{ type: Output }],
    activeDateChange: [{ type: Output }],
    _matCalendarBody: [{ type: ViewChild, args: [MatCalendarBody, { static: false },] }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Default header for MatCalendar
 * @template D
 */
class MatCalendarHeader {
    /**
     * @param {?} _intl
     * @param {?} calendar
     * @param {?} _dateAdapter
     * @param {?} _dateFormats
     * @param {?} changeDetectorRef
     */
    constructor(_intl, calendar, _dateAdapter, _dateFormats, changeDetectorRef) {
        this._intl = _intl;
        this.calendar = calendar;
        this._dateAdapter = _dateAdapter;
        this._dateFormats = _dateFormats;
        this.calendar.stateChanges.subscribe((/**
         * @return {?}
         */
        () => changeDetectorRef.markForCheck()));
    }
    /**
     * The label for the current calendar view.
     * @return {?}
     */
    get periodButtonText() {
        if (this.calendar.currentView == 'month') {
            return this._dateAdapter
                .format(this.calendar.activeDate, this._dateFormats.display.monthYearLabel)
                .toLocaleUpperCase();
        }
        if (this.calendar.currentView == 'year') {
            return this._dateAdapter.getYearName(this.calendar.activeDate);
        }
        // The offset from the active year to the "slot" for the starting year is the
        // *actual* first rendered year in the multi-year view, and the last year is
        // just yearsPerPage - 1 away.
        /** @type {?} */
        const activeYear = this._dateAdapter.getYear(this.calendar.activeDate);
        /** @type {?} */
        const minYearOfPage = activeYear - getActiveOffset(this._dateAdapter, this.calendar.activeDate, this.calendar.minDate, this.calendar.maxDate);
        /** @type {?} */
        const maxYearOfPage = minYearOfPage + yearsPerPage - 1;
        return `${minYearOfPage} \u2013 ${maxYearOfPage}`;
    }
    /**
     * @return {?}
     */
    get periodButtonLabel() {
        return this.calendar.currentView == 'month' ?
            this._intl.switchToMultiYearViewLabel : this._intl.switchToMonthViewLabel;
    }
    /**
     * The label for the previous button.
     * @return {?}
     */
    get prevButtonLabel() {
        return {
            'month': this._intl.prevMonthLabel,
            'year': this._intl.prevYearLabel,
            'multi-year': this._intl.prevMultiYearLabel
        }[this.calendar.currentView];
    }
    /**
     * The label for the next button.
     * @return {?}
     */
    get nextButtonLabel() {
        return {
            'month': this._intl.nextMonthLabel,
            'year': this._intl.nextYearLabel,
            'multi-year': this._intl.nextMultiYearLabel
        }[this.calendar.currentView];
    }
    /**
     * Handles user clicks on the period label.
     * @return {?}
     */
    currentPeriodClicked() {
        this.calendar.currentView = this.calendar.currentView == 'month' ? 'multi-year' : 'month';
    }
    /**
     * Handles user clicks on the previous button.
     * @return {?}
     */
    previousClicked() {
        this.calendar.activeDate = this.calendar.currentView == 'month' ?
            this._dateAdapter.addCalendarMonths(this.calendar.activeDate, -1) :
            this._dateAdapter.addCalendarYears(this.calendar.activeDate, this.calendar.currentView == 'year' ? -1 : -yearsPerPage);
    }
    /**
     * Handles user clicks on the next button.
     * @return {?}
     */
    nextClicked() {
        this.calendar.activeDate = this.calendar.currentView == 'month' ?
            this._dateAdapter.addCalendarMonths(this.calendar.activeDate, 1) :
            this._dateAdapter.addCalendarYears(this.calendar.activeDate, this.calendar.currentView == 'year' ? 1 : yearsPerPage);
    }
    /**
     * Whether the previous period button is enabled.
     * @return {?}
     */
    previousEnabled() {
        if (!this.calendar.minDate) {
            return true;
        }
        return !this.calendar.minDate ||
            !this._isSameView(this.calendar.activeDate, this.calendar.minDate);
    }
    /**
     * Whether the next period button is enabled.
     * @return {?}
     */
    nextEnabled() {
        return !this.calendar.maxDate ||
            !this._isSameView(this.calendar.activeDate, this.calendar.maxDate);
    }
    /**
     * Whether the two dates represent the same view in the current view mode (month or year).
     * @private
     * @param {?} date1
     * @param {?} date2
     * @return {?}
     */
    _isSameView(date1, date2) {
        if (this.calendar.currentView == 'month') {
            return this._dateAdapter.getYear(date1) == this._dateAdapter.getYear(date2) &&
                this._dateAdapter.getMonth(date1) == this._dateAdapter.getMonth(date2);
        }
        if (this.calendar.currentView == 'year') {
            return this._dateAdapter.getYear(date1) == this._dateAdapter.getYear(date2);
        }
        // Otherwise we are in 'multi-year' view.
        return isSameMultiYearView(this._dateAdapter, date1, date2, this.calendar.minDate, this.calendar.maxDate);
    }
}
MatCalendarHeader.decorators = [
    { type: Component, args: [{selector: 'mat-calendar-header',
                template: "<div class=\"mat-calendar-header\"><div class=\"mat-calendar-controls\"><button mat-button type=\"button\" class=\"mat-calendar-period-button\" (click)=\"currentPeriodClicked()\" [attr.aria-label]=\"periodButtonLabel\" cdkAriaLive=\"polite\">{{periodButtonText}}<div class=\"mat-calendar-arrow\" [class.mat-calendar-invert]=\"calendar.currentView != 'month'\"></div></button><div class=\"mat-calendar-spacer\"></div><ng-content></ng-content><button mat-icon-button type=\"button\" class=\"mat-calendar-previous-button\" [disabled]=\"!previousEnabled()\" (click)=\"previousClicked()\" [attr.aria-label]=\"prevButtonLabel\"></button> <button mat-icon-button type=\"button\" class=\"mat-calendar-next-button\" [disabled]=\"!nextEnabled()\" (click)=\"nextClicked()\" [attr.aria-label]=\"nextButtonLabel\"></button></div></div>",
                exportAs: 'matCalendarHeader',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
            },] },
];
/** @nocollapse */
MatCalendarHeader.ctorParameters = () => [
    { type: MatDatepickerIntl },
    { type: MatCalendar, decorators: [{ type: Inject, args: [forwardRef((/**
                     * @return {?}
                     */
                    () => MatCalendar)),] }] },
    { type: DateAdapter, decorators: [{ type: Optional }] },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_FORMATS,] }] },
    { type: ChangeDetectorRef }
];
/**
 * A calendar that is used as part of the datepicker.
 * \@docs-private
 * @template D
 */
class MatCalendar {
    /**
     * @param {?} _intl
     * @param {?} _dateAdapter
     * @param {?} _dateFormats
     * @param {?} _changeDetectorRef
     */
    constructor(_intl, _dateAdapter, _dateFormats, _changeDetectorRef) {
        this._dateAdapter = _dateAdapter;
        this._dateFormats = _dateFormats;
        this._changeDetectorRef = _changeDetectorRef;
        /**
         * Used for scheduling that focus should be moved to the active cell on the next tick.
         * We need to schedule it, rather than do it immediately, because we have to wait
         * for Angular to re-evaluate the view children.
         */
        this._moveFocusOnNextTick = false;
        /**
         * Whether the calendar should be started in month or year view.
         */
        this.startView = 'month';
        /**
         * Emits when the currently selected date changes.
         */
        this.selectedChange = new EventEmitter();
        /**
         * Emits the year chosen in multiyear view.
         * This doesn't imply a change on the selected date.
         */
        this.yearSelected = new EventEmitter();
        /**
         * Emits the month chosen in year view.
         * This doesn't imply a change on the selected date.
         */
        this.monthSelected = new EventEmitter();
        /**
         * Emits when any date is selected.
         */
        this._userSelection = new EventEmitter();
        /**
         * Emits whenever there is a state change that the header may need to respond to.
         */
        this.stateChanges = new Subject();
        if (!this._dateAdapter) {
            throw createMissingDateImplError('DateAdapter');
        }
        if (!this._dateFormats) {
            throw createMissingDateImplError('MAT_DATE_FORMATS');
        }
        this._intlChanges = _intl.changes.subscribe((/**
         * @return {?}
         */
        () => {
            _changeDetectorRef.markForCheck();
            this.stateChanges.next();
        }));
    }
    /**
     * A date representing the period (month or year) to start the calendar in.
     * @return {?}
     */
    get startAt() { return this._startAt; }
    /**
     * @param {?} value
     * @return {?}
     */
    set startAt(value) {
        this._startAt = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * The currently selected date.
     * @return {?}
     */
    get selected() { return this._selected; }
    /**
     * @param {?} value
     * @return {?}
     */
    set selected(value) {
        this._selected = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * The minimum selectable date.
     * @return {?}
     */
    get minDate() { return this._minDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set minDate(value) {
        this._minDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * The maximum selectable date.
     * @return {?}
     */
    get maxDate() { return this._maxDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set maxDate(value) {
        this._maxDate = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * The current active date. This determines which time period is shown and which date is
     * highlighted when using keyboard navigation.
     * @return {?}
     */
    get activeDate() { return this._clampedActiveDate; }
    /**
     * @param {?} value
     * @return {?}
     */
    set activeDate(value) {
        this._clampedActiveDate = this._dateAdapter.clampDate(value, this.minDate, this.maxDate);
        this.stateChanges.next();
        this._changeDetectorRef.markForCheck();
    }
    /**
     * Whether the calendar is in month view.
     * @return {?}
     */
    get currentView() { return this._currentView; }
    /**
     * @param {?} value
     * @return {?}
     */
    set currentView(value) {
        this._currentView = value;
        this._moveFocusOnNextTick = true;
        this._changeDetectorRef.markForCheck();
    }
    /**
     * @return {?}
     */
    ngAfterContentInit() {
        this._calendarHeaderPortal = new ComponentPortal(this.headerComponent || MatCalendarHeader);
        this.activeDate = this.startAt || this._dateAdapter.today();
        // Assign to the private property since we don't want to move focus on init.
        this._currentView = this.startView;
    }
    /**
     * @return {?}
     */
    ngAfterViewChecked() {
        if (this._moveFocusOnNextTick) {
            this._moveFocusOnNextTick = false;
            this.focusActiveCell();
        }
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this._intlChanges.unsubscribe();
        this.stateChanges.complete();
    }
    /**
     * @param {?} changes
     * @return {?}
     */
    ngOnChanges(changes) {
        /** @type {?} */
        const change = changes['minDate'] || changes['maxDate'] || changes['dateFilter'];
        if (change && !change.firstChange) {
            /** @type {?} */
            const view = this._getCurrentViewComponent();
            if (view) {
                // We need to `detectChanges` manually here, because the `minDate`, `maxDate` etc. are
                // passed down to the view via data bindings which won't be up-to-date when we call `_init`.
                this._changeDetectorRef.detectChanges();
                view._init();
            }
        }
        this.stateChanges.next();
    }
    /**
     * @return {?}
     */
    focusActiveCell() {
        this._getCurrentViewComponent()._focusActiveCell();
    }
    /**
     * Updates today's date after an update of the active date
     * @return {?}
     */
    updateTodaysDate() {
        /** @type {?} */
        let view = this.currentView == 'month' ? this.monthView :
            (this.currentView == 'year' ? this.yearView : this.multiYearView);
        view.ngAfterContentInit();
    }
    /**
     * Handles date selection in the month view.
     * @param {?} date
     * @return {?}
     */
    _dateSelected(date) {
        if (!this._dateAdapter.sameDate(date, this.selected)) {
            this.selectedChange.emit(date);
        }
    }
    /**
     * Handles year selection in the multiyear view.
     * @param {?} normalizedYear
     * @return {?}
     */
    _yearSelectedInMultiYearView(normalizedYear) {
        this.yearSelected.emit(normalizedYear);
    }
    /**
     * Handles month selection in the year view.
     * @param {?} normalizedMonth
     * @return {?}
     */
    _monthSelectedInYearView(normalizedMonth) {
        this.monthSelected.emit(normalizedMonth);
    }
    /**
     * @return {?}
     */
    _userSelected() {
        this._userSelection.emit();
    }
    /**
     * Handles year/month selection in the multi-year/year views.
     * @param {?} date
     * @param {?} view
     * @return {?}
     */
    _goToDateInView(date, view) {
        this.activeDate = date;
        this.currentView = view;
    }
    /**
     * @private
     * @param {?} obj The object to check.
     * @return {?} The given object if it is both a date instance and valid, otherwise null.
     */
    _getValidDateOrNull(obj) {
        return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;
    }
    /**
     * Returns the component instance that corresponds to the current calendar view.
     * @private
     * @return {?}
     */
    _getCurrentViewComponent() {
        return this.monthView || this.yearView || this.multiYearView;
    }
}
MatCalendar.decorators = [
    { type: Component, args: [{selector: 'mat-calendar',
                template: "<ng-template [cdkPortalOutlet]=\"_calendarHeaderPortal\"></ng-template><div class=\"mat-calendar-content\" [ngSwitch]=\"currentView\" cdkMonitorSubtreeFocus tabindex=\"-1\"><mat-month-view *ngSwitchCase=\"'month'\" [(activeDate)]=\"activeDate\" [selected]=\"selected\" [dateFilter]=\"dateFilter\" [maxDate]=\"maxDate\" [minDate]=\"minDate\" [dateClass]=\"dateClass\" (selectedChange)=\"_dateSelected($event)\" (_userSelection)=\"_userSelected()\"></mat-month-view><mat-year-view *ngSwitchCase=\"'year'\" [(activeDate)]=\"activeDate\" [selected]=\"selected\" [dateFilter]=\"dateFilter\" [maxDate]=\"maxDate\" [minDate]=\"minDate\" (monthSelected)=\"_monthSelectedInYearView($event)\" (selectedChange)=\"_goToDateInView($event, 'month')\"></mat-year-view><mat-multi-year-view *ngSwitchCase=\"'multi-year'\" [(activeDate)]=\"activeDate\" [selected]=\"selected\" [dateFilter]=\"dateFilter\" [maxDate]=\"maxDate\" [minDate]=\"minDate\" (yearSelected)=\"_yearSelectedInMultiYearView($event)\" (selectedChange)=\"_goToDateInView($event, 'year')\"></mat-multi-year-view></div>",
                styles: [".mat-calendar{display:block}.mat-calendar-header{padding:8px 8px 0 8px}.mat-calendar-content{padding:0 8px 8px 8px;outline:0}.mat-calendar-controls{display:flex;margin:5% calc(33% / 7 - 16px)}.mat-calendar-spacer{flex:1 1 auto}.mat-calendar-period-button{min-width:0}.mat-calendar-arrow{display:inline-block;width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top-width:5px;border-top-style:solid;margin:0 0 0 5px;vertical-align:middle}.mat-calendar-arrow.mat-calendar-invert{transform:rotate(180deg)}[dir=rtl] .mat-calendar-arrow{margin:0 5px 0 0}.mat-calendar-next-button,.mat-calendar-previous-button{position:relative}.mat-calendar-next-button::after,.mat-calendar-previous-button::after{top:0;left:0;right:0;bottom:0;position:absolute;content:'';margin:15.5px;border:0 solid currentColor;border-top-width:2px}[dir=rtl] .mat-calendar-next-button,[dir=rtl] .mat-calendar-previous-button{transform:rotate(180deg)}.mat-calendar-previous-button::after{border-left-width:2px;transform:translateX(2px) rotate(-45deg)}.mat-calendar-next-button::after{border-right-width:2px;transform:translateX(-2px) rotate(45deg)}.mat-calendar-table{border-spacing:0;border-collapse:collapse;width:100%}.mat-calendar-table-header th{text-align:center;padding:0 0 8px 0}.mat-calendar-table-header-divider{position:relative;height:1px}.mat-calendar-table-header-divider::after{content:'';position:absolute;top:0;left:-8px;right:-8px;height:1px}"],
                host: {
                    'class': 'mat-calendar',
                },
                exportAs: 'matCalendar',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
            },] },
];
/** @nocollapse */
MatCalendar.ctorParameters = () => [
    { type: MatDatepickerIntl },
    { type: DateAdapter, decorators: [{ type: Optional }] },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_FORMATS,] }] },
    { type: ChangeDetectorRef }
];
MatCalendar.propDecorators = {
    headerComponent: [{ type: Input }],
    startAt: [{ type: Input }],
    startView: [{ type: Input }],
    selected: [{ type: Input }],
    minDate: [{ type: Input }],
    maxDate: [{ type: Input }],
    dateFilter: [{ type: Input }],
    dateClass: [{ type: Input }],
    selectedChange: [{ type: Output }],
    yearSelected: [{ type: Output }],
    monthSelected: [{ type: Output }],
    _userSelection: [{ type: Output }],
    monthView: [{ type: ViewChild, args: [MatMonthView, { static: false },] }],
    yearView: [{ type: ViewChild, args: [MatYearView, { static: false },] }],
    multiYearView: [{ type: ViewChild, args: [MatMultiYearView, { static: false },] }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Animations used by the Material datepicker.
 * \@docs-private
 * @type {?}
 */
const matDatepickerAnimations = {
    /**
     * Transforms the height of the datepicker's calendar.
     */
    transformPanel: trigger('transformPanel', [
        state('void', style({
            opacity: 0,
            transform: 'scale(1, 0.8)'
        })),
        transition('void => enter', animate('120ms cubic-bezier(0, 0, 0.2, 1)', style({
            opacity: 1,
            transform: 'scale(1, 1)'
        }))),
        transition('* => void', animate('100ms linear', style({ opacity: 0 })))
    ]),
    /**
     * Fades in the content of the calendar.
     */
    fadeInCalendar: trigger('fadeInCalendar', [
        state('void', style({ opacity: 0 })),
        state('enter', style({ opacity: 1 })),
        // TODO(crisbeto): this animation should be removed since it isn't quite on spec, but we
        // need to keep it until #12440 gets in, otherwise the exit animation will look glitchy.
        transition('void => *', animate('120ms 100ms cubic-bezier(0.55, 0, 0.55, 0.2)'))
    ])
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Used to generate a unique ID for each datepicker instance.
 * @type {?}
 */
let datepickerUid = 0;
/**
 * Injection token that determines the scroll handling while the calendar is open.
 * @type {?}
 */
const MAT_DATEPICKER_SCROLL_STRATEGY = new InjectionToken('mat-datepicker-scroll-strategy');
/**
 * \@docs-private
 * @param {?} overlay
 * @return {?}
 */
function MAT_DATEPICKER_SCROLL_STRATEGY_FACTORY(overlay) {
    return (/**
     * @return {?}
     */
    () => overlay.scrollStrategies.reposition());
}
/**
 * \@docs-private
 * @type {?}
 */
const MAT_DATEPICKER_SCROLL_STRATEGY_FACTORY_PROVIDER = {
    provide: MAT_DATEPICKER_SCROLL_STRATEGY,
    deps: [Overlay],
    useFactory: MAT_DATEPICKER_SCROLL_STRATEGY_FACTORY,
};
// Boilerplate for applying mixins to MatDatepickerContent.
/**
 * \@docs-private
 */
class MatDatepickerContentBase {
    /**
     * @param {?} _elementRef
     */
    constructor(_elementRef) {
        this._elementRef = _elementRef;
    }
}
/** @type {?} */
const _MatDatepickerContentMixinBase = mixinColor(MatDatepickerContentBase);
/**
 * Component used as the content for the datepicker dialog and popup. We use this instead of using
 * MatCalendar directly as the content so we can control the initial focus. This also gives us a
 * place to put additional features of the popup that are not part of the calendar itself in the
 * future. (e.g. confirmation buttons).
 * \@docs-private
 * @template D
 */
class MatDatepickerContent extends _MatDatepickerContentMixinBase {
    /**
     * @param {?} elementRef
     */
    constructor(elementRef) {
        super(elementRef);
    }
    /**
     * @return {?}
     */
    ngAfterViewInit() {
        this._calendar.focusActiveCell();
    }
}
MatDatepickerContent.decorators = [
    { type: Component, args: [{selector: 'mat-datepicker-content',
                template: "<mat-calendar cdkTrapFocus [id]=\"datepicker.id\" [ngClass]=\"datepicker.panelClass\" [startAt]=\"datepicker.startAt\" [startView]=\"datepicker.startView\" [minDate]=\"datepicker._minDate\" [maxDate]=\"datepicker._maxDate\" [dateFilter]=\"datepicker._dateFilter\" [headerComponent]=\"datepicker.calendarHeaderComponent\" [selected]=\"datepicker._selected\" [dateClass]=\"datepicker.dateClass\" [@fadeInCalendar]=\"'enter'\" (selectedChange)=\"datepicker.select($event)\" (yearSelected)=\"datepicker._selectYear($event)\" (monthSelected)=\"datepicker._selectMonth($event)\" (_userSelection)=\"datepicker.close()\"></mat-calendar>",
                styles: [".mat-datepicker-content{display:block;border-radius:4px}.mat-datepicker-content .mat-calendar{width:296px;height:354px}.mat-datepicker-content-touch{display:block;max-height:80vh;overflow:auto;margin:-24px}.mat-datepicker-content-touch .mat-calendar{min-width:250px;min-height:312px;max-width:750px;max-height:788px}@media all and (orientation:landscape){.mat-datepicker-content-touch .mat-calendar{width:64vh;height:80vh}}@media all and (orientation:portrait){.mat-datepicker-content-touch .mat-calendar{width:80vw;height:100vw}}"],
                host: {
                    'class': 'mat-datepicker-content',
                    '[@transformPanel]': '"enter"',
                    '[class.mat-datepicker-content-touch]': 'datepicker.touchUi',
                },
                animations: [
                    matDatepickerAnimations.transformPanel,
                    matDatepickerAnimations.fadeInCalendar,
                ],
                exportAs: 'matDatepickerContent',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
                inputs: ['color'],
            },] },
];
/** @nocollapse */
MatDatepickerContent.ctorParameters = () => [
    { type: ElementRef }
];
MatDatepickerContent.propDecorators = {
    _calendar: [{ type: ViewChild, args: [MatCalendar, { static: false },] }]
};
// TODO(mmalerba): We use a component instead of a directive here so the user can use implicit
// template reference variables (e.g. #d vs #d="matDatepicker"). We can change this to a directive
// if angular adds support for `exportAs: '$implicit'` on directives.
/**
 * Component responsible for managing the datepicker popup/dialog.
 * @template D
 */
class MatDatepicker {
    /**
     * @param {?} _dialog
     * @param {?} _overlay
     * @param {?} _ngZone
     * @param {?} _viewContainerRef
     * @param {?} scrollStrategy
     * @param {?} _dateAdapter
     * @param {?} _dir
     * @param {?} _document
     */
    constructor(_dialog, _overlay, _ngZone, _viewContainerRef, scrollStrategy, _dateAdapter, _dir, _document) {
        this._dialog = _dialog;
        this._overlay = _overlay;
        this._ngZone = _ngZone;
        this._viewContainerRef = _viewContainerRef;
        this._dateAdapter = _dateAdapter;
        this._dir = _dir;
        this._document = _document;
        /**
         * The view that the calendar should start in.
         */
        this.startView = 'month';
        this._touchUi = false;
        /**
         * Emits selected year in multiyear view.
         * This doesn't imply a change on the selected date.
         */
        this.yearSelected = new EventEmitter();
        /**
         * Emits selected month in year view.
         * This doesn't imply a change on the selected date.
         */
        this.monthSelected = new EventEmitter();
        /**
         * Emits when the datepicker has been opened.
         */
        this.openedStream = new EventEmitter();
        /**
         * Emits when the datepicker has been closed.
         */
        this.closedStream = new EventEmitter();
        this._opened = false;
        /**
         * The id for the datepicker calendar.
         */
        this.id = `mat-datepicker-${datepickerUid++}`;
        this._validSelected = null;
        /**
         * The element that was focused before the datepicker was opened.
         */
        this._focusedElementBeforeOpen = null;
        /**
         * Subscription to value changes in the associated input element.
         */
        this._inputSubscription = Subscription.EMPTY;
        /**
         * Emits when the datepicker is disabled.
         */
        this._disabledChange = new Subject();
        /**
         * Emits new selected date when selected date changes.
         */
        this._selectedChanged = new Subject();
        if (!this._dateAdapter) {
            throw createMissingDateImplError('DateAdapter');
        }
        this._scrollStrategy = scrollStrategy;
    }
    /**
     * The date to open the calendar to initially.
     * @return {?}
     */
    get startAt() {
        // If an explicit startAt is set we start there, otherwise we start at whatever the currently
        // selected value is.
        return this._startAt || (this._datepickerInput ? this._datepickerInput.value : null);
    }
    /**
     * @param {?} value
     * @return {?}
     */
    set startAt(value) {
        this._startAt = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
    }
    /**
     * Color palette to use on the datepicker's calendar.
     * @return {?}
     */
    get color() {
        return this._color ||
            (this._datepickerInput ? this._datepickerInput._getThemePalette() : undefined);
    }
    /**
     * @param {?} value
     * @return {?}
     */
    set color(value) {
        this._color = value;
    }
    /**
     * Whether the calendar UI is in touch mode. In touch mode the calendar opens in a dialog rather
     * than a popup and elements have more padding to allow for bigger touch targets.
     * @return {?}
     */
    get touchUi() { return this._touchUi; }
    /**
     * @param {?} value
     * @return {?}
     */
    set touchUi(value) {
        this._touchUi = coerceBooleanProperty(value);
    }
    /**
     * Whether the datepicker pop-up should be disabled.
     * @return {?}
     */
    get disabled() {
        return this._disabled === undefined && this._datepickerInput ?
            this._datepickerInput.disabled : !!this._disabled;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    set disabled(value) {
        /** @type {?} */
        const newValue = coerceBooleanProperty(value);
        if (newValue !== this._disabled) {
            this._disabled = newValue;
            this._disabledChange.next(newValue);
        }
    }
    /**
     * Whether the calendar is open.
     * @return {?}
     */
    get opened() { return this._opened; }
    /**
     * @param {?} value
     * @return {?}
     */
    set opened(value) { value ? this.open() : this.close(); }
    /**
     * The currently selected date.
     * @return {?}
     */
    get _selected() { return this._validSelected; }
    /**
     * @param {?} value
     * @return {?}
     */
    set _selected(value) { this._validSelected = value; }
    /**
     * The minimum selectable date.
     * @return {?}
     */
    get _minDate() {
        return this._datepickerInput && this._datepickerInput.min;
    }
    /**
     * The maximum selectable date.
     * @return {?}
     */
    get _maxDate() {
        return this._datepickerInput && this._datepickerInput.max;
    }
    /**
     * @return {?}
     */
    get _dateFilter() {
        return this._datepickerInput && this._datepickerInput._dateFilter;
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this.close();
        this._inputSubscription.unsubscribe();
        this._disabledChange.complete();
        if (this._popupRef) {
            this._popupRef.dispose();
            this._popupComponentRef = null;
        }
    }
    /**
     * Selects the given date
     * @param {?} date
     * @return {?}
     */
    select(date) {
        /** @type {?} */
        let oldValue = this._selected;
        this._selected = date;
        if (!this._dateAdapter.sameDate(oldValue, this._selected)) {
            this._selectedChanged.next(date);
        }
    }
    /**
     * Emits the selected year in multiyear view
     * @param {?} normalizedYear
     * @return {?}
     */
    _selectYear(normalizedYear) {
        this.yearSelected.emit(normalizedYear);
    }
    /**
     * Emits selected month in year view
     * @param {?} normalizedMonth
     * @return {?}
     */
    _selectMonth(normalizedMonth) {
        this.monthSelected.emit(normalizedMonth);
    }
    /**
     * Register an input with this datepicker.
     * @param {?} input The datepicker input to register with this datepicker.
     * @return {?}
     */
    _registerInput(input) {
        if (this._datepickerInput) {
            throw Error('A MatDatepicker can only be associated with a single input.');
        }
        this._datepickerInput = input;
        this._inputSubscription =
            this._datepickerInput._valueChange.subscribe((/**
             * @param {?} value
             * @return {?}
             */
            (value) => this._selected = value));
    }
    /**
     * Open the calendar.
     * @return {?}
     */
    open() {
        if (this._opened || this.disabled) {
            return;
        }
        if (!this._datepickerInput) {
            throw Error('Attempted to open an MatDatepicker with no associated input.');
        }
        if (this._document) {
            this._focusedElementBeforeOpen = this._document.activeElement;
        }
        this.touchUi ? this._openAsDialog() : this._openAsPopup();
        this._opened = true;
        this.openedStream.emit();
    }
    /**
     * Close the calendar.
     * @return {?}
     */
    close() {
        if (!this._opened) {
            return;
        }
        if (this._popupRef && this._popupRef.hasAttached()) {
            this._popupRef.detach();
        }
        if (this._dialogRef) {
            this._dialogRef.close();
            this._dialogRef = null;
        }
        if (this._calendarPortal && this._calendarPortal.isAttached) {
            this._calendarPortal.detach();
        }
        /** @type {?} */
        const completeClose = (/**
         * @return {?}
         */
        () => {
            // The `_opened` could've been reset already if
            // we got two events in quick succession.
            if (this._opened) {
                this._opened = false;
                this.closedStream.emit();
                this._focusedElementBeforeOpen = null;
            }
        });
        if (this._focusedElementBeforeOpen &&
            typeof this._focusedElementBeforeOpen.focus === 'function') {
            // Because IE moves focus asynchronously, we can't count on it being restored before we've
            // marked the datepicker as closed. If the event fires out of sequence and the element that
            // we're refocusing opens the datepicker on focus, the user could be stuck with not being
            // able to close the calendar at all. We work around it by making the logic, that marks
            // the datepicker as closed, async as well.
            this._focusedElementBeforeOpen.focus();
            setTimeout(completeClose);
        }
        else {
            completeClose();
        }
    }
    /**
     * Open the calendar as a dialog.
     * @private
     * @return {?}
     */
    _openAsDialog() {
        // Usually this would be handled by `open` which ensures that we can only have one overlay
        // open at a time, however since we reset the variables in async handlers some overlays
        // may slip through if the user opens and closes multiple times in quick succession (e.g.
        // by holding down the enter key).
        if (this._dialogRef) {
            this._dialogRef.close();
        }
        this._dialogRef = this._dialog.open(MatDatepickerContent, {
            direction: this._dir ? this._dir.value : 'ltr',
            viewContainerRef: this._viewContainerRef,
            panelClass: 'mat-datepicker-dialog',
        });
        this._dialogRef.afterClosed().subscribe((/**
         * @return {?}
         */
        () => this.close()));
        this._dialogRef.componentInstance.datepicker = this;
        this._setColor();
    }
    /**
     * Open the calendar as a popup.
     * @private
     * @return {?}
     */
    _openAsPopup() {
        if (!this._calendarPortal) {
            this._calendarPortal = new ComponentPortal(MatDatepickerContent, this._viewContainerRef);
        }
        if (!this._popupRef) {
            this._createPopup();
        }
        if (!this._popupRef.hasAttached()) {
            this._popupComponentRef = this._popupRef.attach(this._calendarPortal);
            this._popupComponentRef.instance.datepicker = this;
            this._setColor();
            // Update the position once the calendar has rendered.
            this._ngZone.onStable.asObservable().pipe(take(1)).subscribe((/**
             * @return {?}
             */
            () => {
                this._popupRef.updatePosition();
            }));
        }
    }
    /**
     * Create the popup.
     * @private
     * @return {?}
     */
    _createPopup() {
        /** @type {?} */
        const overlayConfig = new OverlayConfig({
            positionStrategy: this._createPopupPositionStrategy(),
            hasBackdrop: true,
            backdropClass: 'mat-overlay-transparent-backdrop',
            direction: this._dir,
            scrollStrategy: this._scrollStrategy(),
            panelClass: 'mat-datepicker-popup',
        });
        this._popupRef = this._overlay.create(overlayConfig);
        this._popupRef.overlayElement.setAttribute('role', 'dialog');
        merge(this._popupRef.backdropClick(), this._popupRef.detachments(), this._popupRef.keydownEvents().pipe(filter((/**
         * @param {?} event
         * @return {?}
         */
        event => {
            // Closing on alt + up is only valid when there's an input associated with the datepicker.
            return event.keyCode === ESCAPE ||
                (this._datepickerInput && event.altKey && event.keyCode === UP_ARROW);
        })))).subscribe((/**
         * @param {?} event
         * @return {?}
         */
        event => {
            if (event) {
                event.preventDefault();
            }
            this.close();
        }));
    }
    /**
     * Create the popup PositionStrategy.
     * @private
     * @return {?}
     */
    _createPopupPositionStrategy() {
        return this._overlay.position()
            .flexibleConnectedTo(this._datepickerInput.getConnectedOverlayOrigin())
            .withTransformOriginOn('.mat-datepicker-content')
            .withFlexibleDimensions(false)
            .withViewportMargin(8)
            .withLockedPosition()
            .withPositions([
            {
                originX: 'start',
                originY: 'bottom',
                overlayX: 'start',
                overlayY: 'top'
            },
            {
                originX: 'start',
                originY: 'top',
                overlayX: 'start',
                overlayY: 'bottom'
            },
            {
                originX: 'end',
                originY: 'bottom',
                overlayX: 'end',
                overlayY: 'top'
            },
            {
                originX: 'end',
                originY: 'top',
                overlayX: 'end',
                overlayY: 'bottom'
            }
        ]);
    }
    /**
     * @private
     * @param {?} obj The object to check.
     * @return {?} The given object if it is both a date instance and valid, otherwise null.
     */
    _getValidDateOrNull(obj) {
        return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;
    }
    /**
     * Passes the current theme color along to the calendar overlay.
     * @private
     * @return {?}
     */
    _setColor() {
        /** @type {?} */
        const color = this.color;
        if (this._popupComponentRef) {
            this._popupComponentRef.instance.color = color;
        }
        if (this._dialogRef) {
            this._dialogRef.componentInstance.color = color;
        }
    }
}
MatDatepicker.decorators = [
    { type: Component, args: [{selector: 'mat-datepicker',
                template: '',
                exportAs: 'matDatepicker',
                changeDetection: ChangeDetectionStrategy.OnPush,
                encapsulation: ViewEncapsulation.None,
            },] },
];
/** @nocollapse */
MatDatepicker.ctorParameters = () => [
    { type: MatDialog },
    { type: Overlay },
    { type: NgZone },
    { type: ViewContainerRef },
    { type: undefined, decorators: [{ type: Inject, args: [MAT_DATEPICKER_SCROLL_STRATEGY,] }] },
    { type: DateAdapter, decorators: [{ type: Optional }] },
    { type: Directionality, decorators: [{ type: Optional }] },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] }
];
MatDatepicker.propDecorators = {
    calendarHeaderComponent: [{ type: Input }],
    startAt: [{ type: Input }],
    startView: [{ type: Input }],
    color: [{ type: Input }],
    touchUi: [{ type: Input }],
    disabled: [{ type: Input }],
    yearSelected: [{ type: Output }],
    monthSelected: [{ type: Output }],
    panelClass: [{ type: Input }],
    dateClass: [{ type: Input }],
    openedStream: [{ type: Output, args: ['opened',] }],
    closedStream: [{ type: Output, args: ['closed',] }],
    opened: [{ type: Input }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@docs-private
 * @type {?}
 */
const MAT_DATEPICKER_VALUE_ACCESSOR = {
    provide: NG_VALUE_ACCESSOR,
    useExisting: forwardRef((/**
     * @return {?}
     */
    () => MatDatepickerInput)),
    multi: true
};
/**
 * \@docs-private
 * @type {?}
 */
const MAT_DATEPICKER_VALIDATORS = {
    provide: NG_VALIDATORS,
    useExisting: forwardRef((/**
     * @return {?}
     */
    () => MatDatepickerInput)),
    multi: true
};
/**
 * An event used for datepicker input and change events. We don't always have access to a native
 * input or change event because the event may have been triggered by the user clicking on the
 * calendar popup. For consistency, we always use MatDatepickerInputEvent instead.
 * @template D
 */
class MatDatepickerInputEvent {
    /**
     * @param {?} target
     * @param {?} targetElement
     */
    constructor(target, targetElement) {
        this.target = target;
        this.targetElement = targetElement;
        this.value = this.target.value;
    }
}
/**
 * Directive used to connect an input to a MatDatepicker.
 * @template D
 */
class MatDatepickerInput {
    /**
     * @param {?} _elementRef
     * @param {?} _dateAdapter
     * @param {?} _dateFormats
     * @param {?} _formField
     */
    constructor(_elementRef, _dateAdapter, _dateFormats, _formField) {
        this._elementRef = _elementRef;
        this._dateAdapter = _dateAdapter;
        this._dateFormats = _dateFormats;
        this._formField = _formField;
        /**
         * Emits when a `change` event is fired on this `<input>`.
         */
        this.dateChange = new EventEmitter();
        /**
         * Emits when an `input` event is fired on this `<input>`.
         */
        this.dateInput = new EventEmitter();
        /**
         * Emits when the value changes (either due to user input or programmatic change).
         */
        this._valueChange = new EventEmitter();
        /**
         * Emits when the disabled state has changed
         */
        this._disabledChange = new EventEmitter();
        this._onTouched = (/**
         * @return {?}
         */
        () => { });
        this._cvaOnChange = (/**
         * @return {?}
         */
        () => { });
        this._validatorOnChange = (/**
         * @return {?}
         */
        () => { });
        this._datepickerSubscription = Subscription.EMPTY;
        this._localeSubscription = Subscription.EMPTY;
        /**
         * The form control validator for whether the input parses.
         */
        this._parseValidator = (/**
         * @return {?}
         */
        () => {
            return this._lastValueValid ?
                null : { 'matDatepickerParse': { 'text': this._elementRef.nativeElement.value } };
        });
        /**
         * The form control validator for the min date.
         */
        this._minValidator = (/**
         * @param {?} control
         * @return {?}
         */
        (control) => {
            /** @type {?} */
            const controlValue = this._getValidDateOrNull(this._dateAdapter.deserialize(control.value));
            return (!this.min || !controlValue ||
                this._dateAdapter.compareDate(this.min, controlValue) <= 0) ?
                null : { 'matDatepickerMin': { 'min': this.min, 'actual': controlValue } };
        });
        /**
         * The form control validator for the max date.
         */
        this._maxValidator = (/**
         * @param {?} control
         * @return {?}
         */
        (control) => {
            /** @type {?} */
            const controlValue = this._getValidDateOrNull(this._dateAdapter.deserialize(control.value));
            return (!this.max || !controlValue ||
                this._dateAdapter.compareDate(this.max, controlValue) >= 0) ?
                null : { 'matDatepickerMax': { 'max': this.max, 'actual': controlValue } };
        });
        /**
         * The form control validator for the date filter.
         */
        this._filterValidator = (/**
         * @param {?} control
         * @return {?}
         */
        (control) => {
            /** @type {?} */
            const controlValue = this._getValidDateOrNull(this._dateAdapter.deserialize(control.value));
            return !this._dateFilter || !controlValue || this._dateFilter(controlValue) ?
                null : { 'matDatepickerFilter': true };
        });
        /**
         * The combined form control validator for this input.
         */
        this._validator = Validators.compose([this._parseValidator, this._minValidator, this._maxValidator, this._filterValidator]);
        /**
         * Whether the last value set on the input was valid.
         */
        this._lastValueValid = false;
        if (!this._dateAdapter) {
            throw createMissingDateImplError('DateAdapter');
        }
        if (!this._dateFormats) {
            throw createMissingDateImplError('MAT_DATE_FORMATS');
        }
        // Update the displayed date when the locale changes.
        this._localeSubscription = _dateAdapter.localeChanges.subscribe((/**
         * @return {?}
         */
        () => {
            this.value = this.value;
        }));
    }
    /**
     * The datepicker that this input is associated with.
     * @param {?} value
     * @return {?}
     */
    set matDatepicker(value) {
        if (!value) {
            return;
        }
        this._datepicker = value;
        this._datepicker._registerInput(this);
        this._datepickerSubscription.unsubscribe();
        this._datepickerSubscription = this._datepicker._selectedChanged.subscribe((/**
         * @param {?} selected
         * @return {?}
         */
        (selected) => {
            this.value = selected;
            this._cvaOnChange(selected);
            this._onTouched();
            this.dateInput.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));
            this.dateChange.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));
        }));
    }
    /**
     * Function that can be used to filter out dates within the datepicker.
     * @param {?} value
     * @return {?}
     */
    set matDatepickerFilter(value) {
        this._dateFilter = value;
        this._validatorOnChange();
    }
    /**
     * The value of the input.
     * @return {?}
     */
    get value() { return this._value; }
    /**
     * @param {?} value
     * @return {?}
     */
    set value(value) {
        value = this._dateAdapter.deserialize(value);
        this._lastValueValid = !value || this._dateAdapter.isValid(value);
        value = this._getValidDateOrNull(value);
        /** @type {?} */
        const oldDate = this.value;
        this._value = value;
        this._formatValue(value);
        if (!this._dateAdapter.sameDate(oldDate, value)) {
            this._valueChange.emit(value);
        }
    }
    /**
     * The minimum valid date.
     * @return {?}
     */
    get min() { return this._min; }
    /**
     * @param {?} value
     * @return {?}
     */
    set min(value) {
        this._min = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
        this._validatorOnChange();
    }
    /**
     * The maximum valid date.
     * @return {?}
     */
    get max() { return this._max; }
    /**
     * @param {?} value
     * @return {?}
     */
    set max(value) {
        this._max = this._getValidDateOrNull(this._dateAdapter.deserialize(value));
        this._validatorOnChange();
    }
    /**
     * Whether the datepicker-input is disabled.
     * @return {?}
     */
    get disabled() { return !!this._disabled; }
    /**
     * @param {?} value
     * @return {?}
     */
    set disabled(value) {
        /** @type {?} */
        const newValue = coerceBooleanProperty(value);
        /** @type {?} */
        const element = this._elementRef.nativeElement;
        if (this._disabled !== newValue) {
            this._disabled = newValue;
            this._disabledChange.emit(newValue);
        }
        // We need to null check the `blur` method, because it's undefined during SSR.
        if (newValue && element.blur) {
            // Normally, native input elements automatically blur if they turn disabled. This behavior
            // is problematic, because it would mean that it triggers another change detection cycle,
            // which then causes a changed after checked error if the input element was focused before.
            element.blur();
        }
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this._datepickerSubscription.unsubscribe();
        this._localeSubscription.unsubscribe();
        this._valueChange.complete();
        this._disabledChange.complete();
    }
    /**
     * \@docs-private
     * @param {?} fn
     * @return {?}
     */
    registerOnValidatorChange(fn) {
        this._validatorOnChange = fn;
    }
    /**
     * \@docs-private
     * @param {?} c
     * @return {?}
     */
    validate(c) {
        return this._validator ? this._validator(c) : null;
    }
    /**
     * @deprecated
     * \@breaking-change 8.0.0 Use `getConnectedOverlayOrigin` instead
     * @return {?}
     */
    getPopupConnectionElementRef() {
        return this.getConnectedOverlayOrigin();
    }
    /**
     * Gets the element that the datepicker popup should be connected to.
     * @return {?} The element to connect the popup to.
     */
    getConnectedOverlayOrigin() {
        return this._formField ? this._formField.getConnectedOverlayOrigin() : this._elementRef;
    }
    // Implemented as part of ControlValueAccessor.
    /**
     * @param {?} value
     * @return {?}
     */
    writeValue(value) {
        this.value = value;
    }
    // Implemented as part of ControlValueAccessor.
    /**
     * @param {?} fn
     * @return {?}
     */
    registerOnChange(fn) {
        this._cvaOnChange = fn;
    }
    // Implemented as part of ControlValueAccessor.
    /**
     * @param {?} fn
     * @return {?}
     */
    registerOnTouched(fn) {
        this._onTouched = fn;
    }
    // Implemented as part of ControlValueAccessor.
    /**
     * @param {?} isDisabled
     * @return {?}
     */
    setDisabledState(isDisabled) {
        this.disabled = isDisabled;
    }
    /**
     * @param {?} event
     * @return {?}
     */
    _onKeydown(event) {
        /** @type {?} */
        const isAltDownArrow = event.altKey && event.keyCode === DOWN_ARROW;
        if (this._datepicker && isAltDownArrow && !this._elementRef.nativeElement.readOnly) {
            this._datepicker.open();
            event.preventDefault();
        }
    }
    /**
     * @param {?} value
     * @return {?}
     */
    _onInput(value) {
        /** @type {?} */
        let date = this._dateAdapter.parse(value, this._dateFormats.parse.dateInput);
        this._lastValueValid = !date || this._dateAdapter.isValid(date);
        date = this._getValidDateOrNull(date);
        if (!this._dateAdapter.sameDate(date, this._value)) {
            this._value = date;
            this._cvaOnChange(date);
            this._valueChange.emit(date);
            this.dateInput.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));
        }
        else {
            this._validatorOnChange();
        }
    }
    /**
     * @return {?}
     */
    _onChange() {
        this.dateChange.emit(new MatDatepickerInputEvent(this, this._elementRef.nativeElement));
    }
    /**
     * Returns the palette used by the input's form field, if any.
     * @return {?}
     */
    _getThemePalette() {
        return this._formField ? this._formField.color : undefined;
    }
    /**
     * Handles blur events on the input.
     * @return {?}
     */
    _onBlur() {
        // Reformat the input only if we have a valid value.
        if (this.value) {
            this._formatValue(this.value);
        }
        this._onTouched();
    }
    /**
     * Formats a value and sets it on the input element.
     * @private
     * @param {?} value
     * @return {?}
     */
    _formatValue(value) {
        this._elementRef.nativeElement.value =
            value ? this._dateAdapter.format(value, this._dateFormats.display.dateInput) : '';
    }
    /**
     * @private
     * @param {?} obj The object to check.
     * @return {?} The given object if it is both a date instance and valid, otherwise null.
     */
    _getValidDateOrNull(obj) {
        return (this._dateAdapter.isDateInstance(obj) && this._dateAdapter.isValid(obj)) ? obj : null;
    }
}
MatDatepickerInput.decorators = [
    { type: Directive, args: [{
                selector: 'input[matDatepicker]',
                providers: [
                    MAT_DATEPICKER_VALUE_ACCESSOR,
                    MAT_DATEPICKER_VALIDATORS,
                    { provide: MAT_INPUT_VALUE_ACCESSOR, useExisting: MatDatepickerInput },
                ],
                host: {
                    '[attr.aria-haspopup]': '_datepicker ? "dialog" : null',
                    '[attr.aria-owns]': '(_datepicker?.opened && _datepicker.id) || null',
                    '[attr.min]': 'min ? _dateAdapter.toIso8601(min) : null',
                    '[attr.max]': 'max ? _dateAdapter.toIso8601(max) : null',
                    '[disabled]': 'disabled',
                    '(input)': '_onInput($event.target.value)',
                    '(change)': '_onChange()',
                    '(blur)': '_onBlur()',
                    '(keydown)': '_onKeydown($event)',
                },
                exportAs: 'matDatepickerInput',
            },] },
];
/** @nocollapse */
MatDatepickerInput.ctorParameters = () => [
    { type: ElementRef },
    { type: DateAdapter, decorators: [{ type: Optional }] },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_FORMATS,] }] },
    { type: MatFormField, decorators: [{ type: Optional }] }
];
MatDatepickerInput.propDecorators = {
    matDatepicker: [{ type: Input }],
    matDatepickerFilter: [{ type: Input }],
    value: [{ type: Input }],
    min: [{ type: Input }],
    max: [{ type: Input }],
    disabled: [{ type: Input }],
    dateChange: [{ type: Output }],
    dateInput: [{ type: Output }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Can be used to override the icon of a `matDatepickerToggle`.
 */
class MatDatepickerToggleIcon {
}
MatDatepickerToggleIcon.decorators = [
    { type: Directive, args: [{
                selector: '[matDatepickerToggleIcon]'
            },] },
];
/**
 * @template D
 */
class MatDatepickerToggle {
    /**
     * @param {?} _intl
     * @param {?} _changeDetectorRef
     * @param {?} defaultTabIndex
     */
    constructor(_intl, _changeDetectorRef, defaultTabIndex) {
        this._intl = _intl;
        this._changeDetectorRef = _changeDetectorRef;
        this._stateChanges = Subscription.EMPTY;
        /** @type {?} */
        const parsedTabIndex = Number(defaultTabIndex);
        this.tabIndex = (parsedTabIndex || parsedTabIndex === 0) ? parsedTabIndex : null;
    }
    /**
     * Whether the toggle button is disabled.
     * @return {?}
     */
    get disabled() {
        if (this._disabled === undefined && this.datepicker) {
            return this.datepicker.disabled;
        }
        return !!this._disabled;
    }
    /**
     * @param {?} value
     * @return {?}
     */
    set disabled(value) {
        this._disabled = coerceBooleanProperty(value);
    }
    /**
     * @param {?} changes
     * @return {?}
     */
    ngOnChanges(changes) {
        if (changes['datepicker']) {
            this._watchStateChanges();
        }
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this._stateChanges.unsubscribe();
    }
    /**
     * @return {?}
     */
    ngAfterContentInit() {
        this._watchStateChanges();
    }
    /**
     * @param {?} event
     * @return {?}
     */
    _open(event) {
        if (this.datepicker && !this.disabled) {
            this.datepicker.open();
            event.stopPropagation();
        }
    }
    /**
     * @private
     * @return {?}
     */
    _watchStateChanges() {
        /** @type {?} */
        const datepickerDisabled = this.datepicker ? this.datepicker._disabledChange : of();
        /** @type {?} */
        const inputDisabled = this.datepicker && this.datepicker._datepickerInput ?
            this.datepicker._datepickerInput._disabledChange : of();
        /** @type {?} */
        const datepickerToggled = this.datepicker ?
            merge(this.datepicker.openedStream, this.datepicker.closedStream) :
            of();
        this._stateChanges.unsubscribe();
        this._stateChanges = merge(this._intl.changes, datepickerDisabled, inputDisabled, datepickerToggled).subscribe((/**
         * @return {?}
         */
        () => this._changeDetectorRef.markForCheck()));
    }
}
MatDatepickerToggle.decorators = [
    { type: Component, args: [{selector: 'mat-datepicker-toggle',
                template: "<button #button mat-icon-button type=\"button\" [attr.aria-haspopup]=\"datepicker ? 'dialog' : null\" [attr.aria-label]=\"_intl.openCalendarLabel\" [attr.tabindex]=\"disabled ? -1 : tabIndex\" [disabled]=\"disabled\" [disableRipple]=\"disableRipple\" (click)=\"_open($event)\"><svg *ngIf=\"!_customIcon\" class=\"mat-datepicker-toggle-default-icon\" viewBox=\"0 0 24 24\" width=\"24px\" height=\"24px\" fill=\"currentColor\" focusable=\"false\"><path d=\"M19 3h-1V1h-2v2H8V1H6v2H5c-1.11 0-1.99.9-1.99 2L3 19c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm0 16H5V8h14v11zM7 10h5v5H7z\"/></svg><ng-content select=\"[matDatepickerToggleIcon]\"></ng-content></button>",
                styles: [".mat-form-field-appearance-legacy .mat-form-field-prefix .mat-datepicker-toggle-default-icon,.mat-form-field-appearance-legacy .mat-form-field-suffix .mat-datepicker-toggle-default-icon{width:1em}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-datepicker-toggle-default-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-datepicker-toggle-default-icon{display:block;width:1.5em;height:1.5em}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button .mat-datepicker-toggle-default-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button .mat-datepicker-toggle-default-icon{margin:auto}"],
                host: {
                    'class': 'mat-datepicker-toggle',
                    // Always set the tabindex to -1 so that it doesn't overlap with any custom tabindex the
                    // consumer may have provided, while still being able to receive focus.
                    '[attr.tabindex]': '-1',
                    '[class.mat-datepicker-toggle-active]': 'datepicker && datepicker.opened',
                    '[class.mat-accent]': 'datepicker && datepicker.color === "accent"',
                    '[class.mat-warn]': 'datepicker && datepicker.color === "warn"',
                    '(focus)': '_button.focus()',
                },
                exportAs: 'matDatepickerToggle',
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
            },] },
];
/** @nocollapse */
MatDatepickerToggle.ctorParameters = () => [
    { type: MatDatepickerIntl },
    { type: ChangeDetectorRef },
    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] }
];
MatDatepickerToggle.propDecorators = {
    datepicker: [{ type: Input, args: ['for',] }],
    tabIndex: [{ type: Input }],
    disabled: [{ type: Input }],
    disableRipple: [{ type: Input }],
    _customIcon: [{ type: ContentChild, args: [MatDatepickerToggleIcon, { static: false },] }],
    _button: [{ type: ViewChild, args: ['button', { static: false },] }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
class MatDatepickerModule {
}
MatDatepickerModule.decorators = [
    { type: NgModule, args: [{
                imports: [
                    CommonModule,
                    MatButtonModule,
                    MatDialogModule,
                    OverlayModule,
                    A11yModule,
                    PortalModule,
                ],
                exports: [
                    MatCalendar,
                    MatCalendarBody,
                    MatDatepicker,
                    MatDatepickerContent,
                    MatDatepickerInput,
                    MatDatepickerToggle,
                    MatDatepickerToggleIcon,
                    MatMonthView,
                    MatYearView,
                    MatMultiYearView,
                    MatCalendarHeader,
                ],
                declarations: [
                    MatCalendar,
                    MatCalendarBody,
                    MatDatepicker,
                    MatDatepickerContent,
                    MatDatepickerInput,
                    MatDatepickerToggle,
                    MatDatepickerToggleIcon,
                    MatMonthView,
                    MatYearView,
                    MatMultiYearView,
                    MatCalendarHeader,
                ],
                providers: [
                    MatDatepickerIntl,
                    MAT_DATEPICKER_SCROLL_STRATEGY_FACTORY_PROVIDER,
                ],
                entryComponents: [
                    MatDatepickerContent,
                    MatCalendarHeader,
                ]
            },] },
];

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

export { MatMultiYearView, yearsPerPage, yearsPerRow, MatDatepickerModule, MatCalendarHeader, MatCalendar, MatCalendarCell, MatCalendarBody, MAT_DATEPICKER_SCROLL_STRATEGY_FACTORY, MAT_DATEPICKER_SCROLL_STRATEGY, MAT_DATEPICKER_SCROLL_STRATEGY_FACTORY_PROVIDER, MatDatepickerContent, MatDatepicker, matDatepickerAnimations, MAT_DATEPICKER_VALUE_ACCESSOR, MAT_DATEPICKER_VALIDATORS, MatDatepickerInputEvent, MatDatepickerInput, MatDatepickerIntl, MatDatepickerToggleIcon, MatDatepickerToggle, MatMonthView, MatYearView };
//# sourceMappingURL=datepicker.js.map