source: trip-planner-front/node_modules/@angular/material/fesm2015/core.js@ 8d391a1

import * as i0 from '@angular/core';
import { Version, InjectionToken, isDevMode, NgModule, Optional, Inject, inject, LOCALE_ID, Injectable, Directive, ElementRef, NgZone, Input, Component, ViewEncapsulation, ChangeDetectionStrategy, EventEmitter, ChangeDetectorRef, Output } from '@angular/core';
import { HighContrastModeDetector, isFakeMousedownFromScreenReader, isFakeTouchstartFromScreenReader } from '@angular/cdk/a11y';
import { BidiModule } from '@angular/cdk/bidi';
import { VERSION as VERSION$2 } from '@angular/cdk';
import { DOCUMENT, CommonModule } from '@angular/common';
import { _isTestEnvironment, Platform, PlatformModule, normalizePassiveListenerOptions } from '@angular/cdk/platform';
import { coerceBooleanProperty, coerceNumberProperty, coerceElement } from '@angular/cdk/coercion';
import { Subject, Observable } from 'rxjs';
import { startWith } from 'rxjs/operators';
import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';
import { ENTER, SPACE, hasModifierKey } from '@angular/cdk/keycodes';

/**
 * @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
 */
/** Current version of Angular Material. */
const VERSION$1 = new Version('12.2.13');

/**
 * @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
 */
/** @docs-private */
class AnimationCurves {
}
AnimationCurves.STANDARD_CURVE = 'cubic-bezier(0.4,0.0,0.2,1)';
AnimationCurves.DECELERATION_CURVE = 'cubic-bezier(0.0,0.0,0.2,1)';
AnimationCurves.ACCELERATION_CURVE = 'cubic-bezier(0.4,0.0,1,1)';
AnimationCurves.SHARP_CURVE = 'cubic-bezier(0.4,0.0,0.6,1)';
/** @docs-private */
class AnimationDurations {
}
AnimationDurations.COMPLEX = '375ms';
AnimationDurations.ENTERING = '225ms';
AnimationDurations.EXITING = '195ms';

/**
 * @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
 */
// Private version constant to circumvent test/build issues,
// i.e. avoid core to depend on the @angular/material primary entry-point
// Can be removed once the Material primary entry-point no longer
// re-exports all secondary entry-points
const VERSION = new Version('12.2.13');
/** @docs-private */
function MATERIAL_SANITY_CHECKS_FACTORY() {
    return true;
}
/** Injection token that configures whether the Material sanity checks are enabled. */
const MATERIAL_SANITY_CHECKS = new InjectionToken('mat-sanity-checks', {
    providedIn: 'root',
    factory: MATERIAL_SANITY_CHECKS_FACTORY,
});
/**
 * Module that captures anything that should be loaded and/or run for *all* Angular Material
 * components. This includes Bidi, etc.
 *
 * This module should be imported to each top-level component module (e.g., MatTabsModule).
 */
class MatCommonModule {
    constructor(highContrastModeDetector, sanityChecks, document) {
        /** Whether we've done the global sanity checks (e.g. a theme is loaded, there is a doctype). */
        this._hasDoneGlobalChecks = false;
        this._document = document;
        // While A11yModule also does this, we repeat it here to avoid importing A11yModule
        // in MatCommonModule.
        highContrastModeDetector._applyBodyHighContrastModeCssClasses();
        // Note that `_sanityChecks` is typed to `any`, because AoT
        // throws an error if we use the `SanityChecks` type directly.
        this._sanityChecks = sanityChecks;
        if (!this._hasDoneGlobalChecks) {
            this._checkDoctypeIsDefined();
            this._checkThemeIsPresent();
            this._checkCdkVersionMatch();
            this._hasDoneGlobalChecks = true;
        }
    }
    /** Gets whether a specific sanity check is enabled. */
    _checkIsEnabled(name) {
        // TODO(crisbeto): we can't use `ngDevMode` here yet, because ViewEngine apps might not support
        // it. Since these checks can have performance implications and they aren't tree shakeable
        // in their current form, we can leave the `isDevMode` check in for now.
        // tslint:disable-next-line:ban
        if (!isDevMode() || _isTestEnvironment()) {
            return false;
        }
        if (typeof this._sanityChecks === 'boolean') {
            return this._sanityChecks;
        }
        return !!this._sanityChecks[name];
    }
    _checkDoctypeIsDefined() {
        if (this._checkIsEnabled('doctype') && !this._document.doctype) {
            console.warn('Current document does not have a doctype. This may cause ' +
                'some Angular Material components not to behave as expected.');
        }
    }
    _checkThemeIsPresent() {
        // We need to assert that the `body` is defined, because these checks run very early
        // and the `body` won't be defined if the consumer put their scripts in the `head`.
        if (!this._checkIsEnabled('theme') || !this._document.body ||
            typeof getComputedStyle !== 'function') {
            return;
        }
        const testElement = this._document.createElement('div');
        testElement.classList.add('mat-theme-loaded-marker');
        this._document.body.appendChild(testElement);
        const computedStyle = getComputedStyle(testElement);
        // In some situations the computed style of the test element can be null. For example in
        // Firefox, the computed style is null if an application is running inside of a hidden iframe.
        // See: https://bugzilla.mozilla.org/show_bug.cgi?id=548397
        if (computedStyle && computedStyle.display !== 'none') {
            console.warn('Could not find Angular Material core theme. Most Material ' +
                'components may not work as expected. For more info refer ' +
                'to the theming guide: https://material.angular.io/guide/theming');
        }
        this._document.body.removeChild(testElement);
    }
    /** Checks whether the material version matches the cdk version */
    _checkCdkVersionMatch() {
        if (this._checkIsEnabled('version') && VERSION.full !== VERSION$2.full) {
            console.warn('The Angular Material version (' + VERSION.full + ') does not match ' +
                'the Angular CDK version (' + VERSION$2.full + ').\n' +
                'Please ensure the versions of these two packages exactly match.');
        }
    }
}
MatCommonModule.decorators = [
    { type: NgModule, args: [{
                imports: [BidiModule],
                exports: [BidiModule],
            },] }
];
MatCommonModule.ctorParameters = () => [
    { type: HighContrastModeDetector },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MATERIAL_SANITY_CHECKS,] }] },
    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }
];

/**
 * @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
 */
function mixinDisabled(base) {
    return class extends base {
        constructor(...args) {
            super(...args);
            this._disabled = false;
        }
        get disabled() { return this._disabled; }
        set disabled(value) { this._disabled = coerceBooleanProperty(value); }
    };
}

/**
 * @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
 */
function mixinColor(base, defaultColor) {
    return class extends base {
        constructor(...args) {
            super(...args);
            this.defaultColor = defaultColor;
            // Set the default color that can be specified from the mixin.
            this.color = defaultColor;
        }
        get color() { return this._color; }
        set color(value) {
            const colorPalette = value || this.defaultColor;
            if (colorPalette !== this._color) {
                if (this._color) {
                    this._elementRef.nativeElement.classList.remove(`mat-${this._color}`);
                }
                if (colorPalette) {
                    this._elementRef.nativeElement.classList.add(`mat-${colorPalette}`);
                }
                this._color = colorPalette;
            }
        }
    };
}

/**
 * @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
 */
function mixinDisableRipple(base) {
    return class extends base {
        constructor(...args) {
            super(...args);
            this._disableRipple = false;
        }
        /** Whether the ripple effect is disabled or not. */
        get disableRipple() { return this._disableRipple; }
        set disableRipple(value) { this._disableRipple = coerceBooleanProperty(value); }
    };
}

/**
 * @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
 */
function mixinTabIndex(base, defaultTabIndex = 0) {
    return class extends base {
        constructor(...args) {
            super(...args);
            this._tabIndex = defaultTabIndex;
            this.defaultTabIndex = defaultTabIndex;
        }
        get tabIndex() { return this.disabled ? -1 : this._tabIndex; }
        set tabIndex(value) {
            // If the specified tabIndex value is null or undefined, fall back to the default value.
            this._tabIndex = value != null ? coerceNumberProperty(value) : this.defaultTabIndex;
        }
    };
}

/**
 * @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
 */
function mixinErrorState(base) {
    return class extends base {
        constructor(...args) {
            super(...args);
            // This class member exists as an interop with `MatFormFieldControl` which expects
            // a public `stateChanges` observable to emit whenever the form field should be updated.
            // The description is not specifically mentioning the error state, as classes using this
            // mixin can/should emit an event in other cases too.
            /** Emits whenever the component state changes. */
            this.stateChanges = new Subject();
            /** Whether the component is in an error state. */
            this.errorState = false;
        }
        /** Updates the error state based on the provided error state matcher. */
        updateErrorState() {
            const oldState = this.errorState;
            const parent = this._parentFormGroup || this._parentForm;
            const matcher = this.errorStateMatcher || this._defaultErrorStateMatcher;
            const control = this.ngControl ? this.ngControl.control : null;
            const newState = matcher.isErrorState(control, parent);
            if (newState !== oldState) {
                this.errorState = newState;
                this.stateChanges.next();
            }
        }
    };
}

/**
 * @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
 */
/** Mixin to augment a directive with an initialized property that will emits when ngOnInit ends. */
function mixinInitialized(base) {
    return class extends base {
        constructor(...args) {
            super(...args);
            /** Whether this directive has been marked as initialized. */
            this._isInitialized = false;
            /**
             * List of subscribers that subscribed before the directive was initialized. Should be notified
             * during _markInitialized. Set to null after pending subscribers are notified, and should
             * not expect to be populated after.
             */
            this._pendingSubscribers = [];
            /**
             * Observable stream that emits when the directive initializes. If already initialized, the
             * subscriber is stored to be notified once _markInitialized is called.
             */
            this.initialized = new Observable(subscriber => {
                // If initialized, immediately notify the subscriber. Otherwise store the subscriber to notify
                // when _markInitialized is called.
                if (this._isInitialized) {
                    this._notifySubscriber(subscriber);
                }
                else {
                    this._pendingSubscribers.push(subscriber);
                }
            });
        }
        /**
         * Marks the state as initialized and notifies pending subscribers. Should be called at the end
         * of ngOnInit.
         * @docs-private
         */
        _markInitialized() {
            if (this._isInitialized && (typeof ngDevMode === 'undefined' || ngDevMode)) {
                throw Error('This directive has already been marked as initialized and ' +
                    'should not be called twice.');
            }
            this._isInitialized = true;
            this._pendingSubscribers.forEach(this._notifySubscriber);
            this._pendingSubscribers = null;
        }
        /** Emits and completes the subscriber stream (should only emit once). */
        _notifySubscriber(subscriber) {
            subscriber.next();
            subscriber.complete();
        }
    };
}

/**
 * @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
 */

/**
 * @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
 */
/** InjectionToken for datepicker that can be used to override default locale code. */
const MAT_DATE_LOCALE = new InjectionToken('MAT_DATE_LOCALE', {
    providedIn: 'root',
    factory: MAT_DATE_LOCALE_FACTORY,
});
/** @docs-private */
function MAT_DATE_LOCALE_FACTORY() {
    return inject(LOCALE_ID);
}
/** Adapts type `D` to be usable as a date by cdk-based components that work with dates. */
class DateAdapter {
    constructor() {
        this._localeChanges = new Subject();
        /** A stream that emits when the locale changes. */
        this.localeChanges = this._localeChanges;
    }
    /**
     * Given a potential date object, returns that same date object if it is
     * a valid date, or `null` if it's not a valid date.
     * @param obj The object to check.
     * @returns A date or `null`.
     */
    getValidDateOrNull(obj) {
        return this.isDateInstance(obj) && this.isValid(obj) ? obj : null;
    }
    /**
     * Attempts to deserialize a value to a valid date object. This is different from parsing in that
     * deserialize should only accept non-ambiguous, locale-independent formats (e.g. a ISO 8601
     * string). The default implementation does not allow any deserialization, it simply checks that
     * the given value is already a valid date object or null. The `<mat-datepicker>` will call this
     * method on all of its `@Input()` properties that accept dates. It is therefore possible to
     * support passing values from your backend directly to these properties by overriding this method
     * to also deserialize the format used by your backend.
     * @param value The value to be deserialized into a date object.
     * @returns The deserialized date object, either a valid date, null if the value can be
     *     deserialized into a null date (e.g. the empty string), or an invalid date.
     */
    deserialize(value) {
        if (value == null || this.isDateInstance(value) && this.isValid(value)) {
            return value;
        }
        return this.invalid();
    }
    /**
     * Sets the locale used for all dates.
     * @param locale The new locale.
     */
    setLocale(locale) {
        this.locale = locale;
        this._localeChanges.next();
    }
    /**
     * Compares two dates.
     * @param first The first date to compare.
     * @param second The second date to compare.
     * @returns 0 if the dates are equal, a number less than 0 if the first date is earlier,
     *     a number greater than 0 if the first date is later.
     */
    compareDate(first, second) {
        return this.getYear(first) - this.getYear(second) ||
            this.getMonth(first) - this.getMonth(second) ||
            this.getDate(first) - this.getDate(second);
    }
    /**
     * Checks if two dates are equal.
     * @param first The first date to check.
     * @param second The second date to check.
     * @returns Whether the two dates are equal.
     *     Null dates are considered equal to other null dates.
     */
    sameDate(first, second) {
        if (first && second) {
            let firstValid = this.isValid(first);
            let secondValid = this.isValid(second);
            if (firstValid && secondValid) {
                return !this.compareDate(first, second);
            }
            return firstValid == secondValid;
        }
        return first == second;
    }
    /**
     * Clamp the given date between min and max dates.
     * @param date The date to clamp.
     * @param min The minimum value to allow. If null or omitted no min is enforced.
     * @param max The maximum value to allow. If null or omitted no max is enforced.
     * @returns `min` if `date` is less than `min`, `max` if date is greater than `max`,
     *     otherwise `date`.
     */
    clampDate(date, min, max) {
        if (min && this.compareDate(date, min) < 0) {
            return min;
        }
        if (max && this.compareDate(date, max) > 0) {
            return max;
        }
        return date;
    }
}

/**
 * @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
 */
const MAT_DATE_FORMATS = new InjectionToken('mat-date-formats');

/**
 * @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
 */
// TODO(mmalerba): Remove when we no longer support safari 9.
/** Whether the browser supports the Intl API. */
let SUPPORTS_INTL_API;
// We need a try/catch around the reference to `Intl`, because accessing it in some cases can
// cause IE to throw. These cases are tied to particular versions of Windows and can happen if
// the consumer is providing a polyfilled `Map`. See:
// https://github.com/Microsoft/ChakraCore/issues/3189
// https://github.com/angular/components/issues/15687
try {
    SUPPORTS_INTL_API = typeof Intl != 'undefined';
}
catch (_a) {
    SUPPORTS_INTL_API = false;
}
/** The default month names to use if Intl API is not available. */
const DEFAULT_MONTH_NAMES = {
    'long': [
        'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September',
        'October', 'November', 'December'
    ],
    'short': ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
    'narrow': ['J', 'F', 'M', 'A', 'M', 'J', 'J', 'A', 'S', 'O', 'N', 'D']
};
const ɵ0$1 = i => String(i + 1);
/** The default date names to use if Intl API is not available. */
const DEFAULT_DATE_NAMES = range(31, ɵ0$1);
/** The default day of the week names to use if Intl API is not available. */
const DEFAULT_DAY_OF_WEEK_NAMES = {
    'long': ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
    'short': ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
    'narrow': ['S', 'M', 'T', 'W', 'T', 'F', 'S']
};
/**
 * Matches strings that have the form of a valid RFC 3339 string
 * (https://tools.ietf.org/html/rfc3339). Note that the string may not actually be a valid date
 * because the regex will match strings an with out of bounds month, date, etc.
 */
const ISO_8601_REGEX = /^\d{4}-\d{2}-\d{2}(?:T\d{2}:\d{2}:\d{2}(?:\.\d+)?(?:Z|(?:(?:\+|-)\d{2}:\d{2}))?)?$/;
/** Creates an array and fills it with values. */
function range(length, valueFunction) {
    const valuesArray = Array(length);
    for (let i = 0; i < length; i++) {
        valuesArray[i] = valueFunction(i);
    }
    return valuesArray;
}
/** Adapts the native JS Date for use with cdk-based components that work with dates. */
class NativeDateAdapter extends DateAdapter {
    constructor(matDateLocale, platform) {
        super();
        /**
         * Whether to use `timeZone: 'utc'` with `Intl.DateTimeFormat` when formatting dates.
         * Without this `Intl.DateTimeFormat` sometimes chooses the wrong timeZone, which can throw off
         * the result. (e.g. in the en-US locale `new Date(1800, 7, 14).toLocaleDateString()`
         * will produce `'8/13/1800'`.
         *
         * TODO(mmalerba): drop this variable. It's not being used in the code right now. We're now
         * getting the string representation of a Date object from its utc representation. We're keeping
         * it here for sometime, just for precaution, in case we decide to revert some of these changes
         * though.
         */
        this.useUtcForDisplay = true;
        super.setLocale(matDateLocale);
        // IE does its own time zone correction, so we disable this on IE.
        this.useUtcForDisplay = !platform.TRIDENT;
        this._clampDate = platform.TRIDENT || platform.EDGE;
    }
    getYear(date) {
        return date.getFullYear();
    }
    getMonth(date) {
        return date.getMonth();
    }
    getDate(date) {
        return date.getDate();
    }
    getDayOfWeek(date) {
        return date.getDay();
    }
    getMonthNames(style) {
        if (SUPPORTS_INTL_API) {
            const dtf = new Intl.DateTimeFormat(this.locale, { month: style, timeZone: 'utc' });
            return range(12, i => this._stripDirectionalityCharacters(this._format(dtf, new Date(2017, i, 1))));
        }
        return DEFAULT_MONTH_NAMES[style];
    }
    getDateNames() {
        if (SUPPORTS_INTL_API) {
            const dtf = new Intl.DateTimeFormat(this.locale, { day: 'numeric', timeZone: 'utc' });
            return range(31, i => this._stripDirectionalityCharacters(this._format(dtf, new Date(2017, 0, i + 1))));
        }
        return DEFAULT_DATE_NAMES;
    }
    getDayOfWeekNames(style) {
        if (SUPPORTS_INTL_API) {
            const dtf = new Intl.DateTimeFormat(this.locale, { weekday: style, timeZone: 'utc' });
            return range(7, i => this._stripDirectionalityCharacters(this._format(dtf, new Date(2017, 0, i + 1))));
        }
        return DEFAULT_DAY_OF_WEEK_NAMES[style];
    }
    getYearName(date) {
        if (SUPPORTS_INTL_API) {
            const dtf = new Intl.DateTimeFormat(this.locale, { year: 'numeric', timeZone: 'utc' });
            return this._stripDirectionalityCharacters(this._format(dtf, date));
        }
        return String(this.getYear(date));
    }
    getFirstDayOfWeek() {
        // We can't tell using native JS Date what the first day of the week is, we default to Sunday.
        return 0;
    }
    getNumDaysInMonth(date) {
        return this.getDate(this._createDateWithOverflow(this.getYear(date), this.getMonth(date) + 1, 0));
    }
    clone(date) {
        return new Date(date.getTime());
    }
    createDate(year, month, date) {
        if (typeof ngDevMode === 'undefined' || ngDevMode) {
            // Check for invalid month and date (except upper bound on date which we have to check after
            // creating the Date).
            if (month < 0 || month > 11) {
                throw Error(`Invalid month index "${month}". Month index has to be between 0 and 11.`);
            }
            if (date < 1) {
                throw Error(`Invalid date "${date}". Date has to be greater than 0.`);
            }
        }
        let result = this._createDateWithOverflow(year, month, date);
        // Check that the date wasn't above the upper bound for the month, causing the month to overflow
        if (result.getMonth() != month && (typeof ngDevMode === 'undefined' || ngDevMode)) {
            throw Error(`Invalid date "${date}" for month with index "${month}".`);
        }
        return result;
    }
    today() {
        return new Date();
    }
    parse(value) {
        // We have no way using the native JS Date to set the parse format or locale, so we ignore these
        // parameters.
        if (typeof value == 'number') {
            return new Date(value);
        }
        return value ? new Date(Date.parse(value)) : null;
    }
    format(date, displayFormat) {
        if (!this.isValid(date)) {
            throw Error('NativeDateAdapter: Cannot format invalid date.');
        }
        if (SUPPORTS_INTL_API) {
            // On IE and Edge the i18n API will throw a hard error that can crash the entire app
            // if we attempt to format a date whose year is less than 1 or greater than 9999.
            if (this._clampDate && (date.getFullYear() < 1 || date.getFullYear() > 9999)) {
                date = this.clone(date);
                date.setFullYear(Math.max(1, Math.min(9999, date.getFullYear())));
            }
            displayFormat = Object.assign(Object.assign({}, displayFormat), { timeZone: 'utc' });
            const dtf = new Intl.DateTimeFormat(this.locale, displayFormat);
            return this._stripDirectionalityCharacters(this._format(dtf, date));
        }
        return this._stripDirectionalityCharacters(date.toDateString());
    }
    addCalendarYears(date, years) {
        return this.addCalendarMonths(date, years * 12);
    }
    addCalendarMonths(date, months) {
        let newDate = this._createDateWithOverflow(this.getYear(date), this.getMonth(date) + months, this.getDate(date));
        // It's possible to wind up in the wrong month if the original month has more days than the new
        // month. In this case we want to go to the last day of the desired month.
        // Note: the additional + 12 % 12 ensures we end up with a positive number, since JS % doesn't
        // guarantee this.
        if (this.getMonth(newDate) != ((this.getMonth(date) + months) % 12 + 12) % 12) {
            newDate = this._createDateWithOverflow(this.getYear(newDate), this.getMonth(newDate), 0);
        }
        return newDate;
    }
    addCalendarDays(date, days) {
        return this._createDateWithOverflow(this.getYear(date), this.getMonth(date), this.getDate(date) + days);
    }
    toIso8601(date) {
        return [
            date.getUTCFullYear(),
            this._2digit(date.getUTCMonth() + 1),
            this._2digit(date.getUTCDate())
        ].join('-');
    }
    /**
     * Returns the given value if given a valid Date or null. Deserializes valid ISO 8601 strings
     * (https://www.ietf.org/rfc/rfc3339.txt) into valid Dates and empty string into null. Returns an
     * invalid date for all other values.
     */
    deserialize(value) {
        if (typeof value === 'string') {
            if (!value) {
                return null;
            }
            // The `Date` constructor accepts formats other than ISO 8601, so we need to make sure the
            // string is the right format first.
            if (ISO_8601_REGEX.test(value)) {
                let date = new Date(value);
                if (this.isValid(date)) {
                    return date;
                }
            }
        }
        return super.deserialize(value);
    }
    isDateInstance(obj) {
        return obj instanceof Date;
    }
    isValid(date) {
        return !isNaN(date.getTime());
    }
    invalid() {
        return new Date(NaN);
    }
    /** Creates a date but allows the month and date to overflow. */
    _createDateWithOverflow(year, month, date) {
        // Passing the year to the constructor causes year numbers <100 to be converted to 19xx.
        // To work around this we use `setFullYear` and `setHours` instead.
        const d = new Date();
        d.setFullYear(year, month, date);
        d.setHours(0, 0, 0, 0);
        return d;
    }
    /**
     * Pads a number to make it two digits.
     * @param n The number to pad.
     * @returns The padded number.
     */
    _2digit(n) {
        return ('00' + n).slice(-2);
    }
    /**
     * Strip out unicode LTR and RTL characters. Edge and IE insert these into formatted dates while
     * other browsers do not. We remove them to make output consistent and because they interfere with
     * date parsing.
     * @param str The string to strip direction characters from.
     * @returns The stripped string.
     */
    _stripDirectionalityCharacters(str) {
        return str.replace(/[\u200e\u200f]/g, '');
    }
    /**
     * When converting Date object to string, javascript built-in functions may return wrong
     * results because it applies its internal DST rules. The DST rules around the world change
     * very frequently, and the current valid rule is not always valid in previous years though.
     * We work around this problem building a new Date object which has its internal UTC
     * representation with the local date and time.
     * @param dtf Intl.DateTimeFormat object, containg the desired string format. It must have
     *    timeZone set to 'utc' to work fine.
     * @param date Date from which we want to get the string representation according to dtf
     * @returns A Date object with its UTC representation based on the passed in date info
     */
    _format(dtf, date) {
        // Passing the year to the constructor causes year numbers <100 to be converted to 19xx.
        // To work around this we use `setUTCFullYear` and `setUTCHours` instead.
        const d = new Date();
        d.setUTCFullYear(date.getFullYear(), date.getMonth(), date.getDate());
        d.setUTCHours(date.getHours(), date.getMinutes(), date.getSeconds(), date.getMilliseconds());
        return dtf.format(d);
    }
}
NativeDateAdapter.decorators = [
    { type: Injectable }
];
NativeDateAdapter.ctorParameters = () => [
    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_LOCALE,] }] },
    { type: Platform }
];

/**
 * @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
 */
const MAT_NATIVE_DATE_FORMATS = {
    parse: {
        dateInput: null,
    },
    display: {
        dateInput: { year: 'numeric', month: 'numeric', day: 'numeric' },
        monthYearLabel: { year: 'numeric', month: 'short' },
        dateA11yLabel: { year: 'numeric', month: 'long', day: 'numeric' },
        monthYearA11yLabel: { year: 'numeric', month: 'long' },
    }
};

/**
 * @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
 */
class NativeDateModule {
}
NativeDateModule.decorators = [
    { type: NgModule, args: [{
                imports: [PlatformModule],
                providers: [
                    { provide: DateAdapter, useClass: NativeDateAdapter },
                ],
            },] }
];
const ɵ0 = MAT_NATIVE_DATE_FORMATS;
class MatNativeDateModule {
}
MatNativeDateModule.decorators = [
    { type: NgModule, args: [{
                imports: [NativeDateModule],
                providers: [{ provide: MAT_DATE_FORMATS, useValue: ɵ0 }],
            },] }
];

/**
 * @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
 */
/** Error state matcher that matches when a control is invalid and dirty. */
class ShowOnDirtyErrorStateMatcher {
    isErrorState(control, form) {
        return !!(control && control.invalid && (control.dirty || (form && form.submitted)));
    }
}
ShowOnDirtyErrorStateMatcher.decorators = [
    { type: Injectable }
];
/** Provider that defines how form controls behave with regards to displaying error messages. */
class ErrorStateMatcher {
    isErrorState(control, form) {
        return !!(control && control.invalid && (control.touched || (form && form.submitted)));
    }
}
ErrorStateMatcher.ɵprov = i0.ɵɵdefineInjectable({ factory: function ErrorStateMatcher_Factory() { return new ErrorStateMatcher(); }, token: ErrorStateMatcher, providedIn: "root" });
ErrorStateMatcher.decorators = [
    { type: Injectable, args: [{ providedIn: 'root' },] }
];

/**
 * @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
 */
/**
 * Shared directive to count lines inside a text area, such as a list item.
 * Line elements can be extracted with a @ContentChildren(MatLine) query, then
 * counted by checking the query list's length.
 */
class MatLine {
}
MatLine.decorators = [
    { type: Directive, args: [{
                selector: '[mat-line], [matLine]',
                host: { 'class': 'mat-line' }
            },] }
];
/**
 * Helper that takes a query list of lines and sets the correct class on the host.
 * @docs-private
 */
function setLines(lines, element, prefix = 'mat') {
    // Note: doesn't need to unsubscribe, because `changes`
    // gets completed by Angular when the view is destroyed.
    lines.changes.pipe(startWith(lines)).subscribe(({ length }) => {
        setClass(element, `${prefix}-2-line`, false);
        setClass(element, `${prefix}-3-line`, false);
        setClass(element, `${prefix}-multi-line`, false);
        if (length === 2 || length === 3) {
            setClass(element, `${prefix}-${length}-line`, true);
        }
        else if (length > 3) {
            setClass(element, `${prefix}-multi-line`, true);
        }
    });
}
/** Adds or removes a class from an element. */
function setClass(element, className, isAdd) {
    const classList = element.nativeElement.classList;
    isAdd ? classList.add(className) : classList.remove(className);
}
class MatLineModule {
}
MatLineModule.decorators = [
    { type: NgModule, args: [{
                imports: [MatCommonModule],
                exports: [MatLine, MatCommonModule],
                declarations: [MatLine],
            },] }
];

/**
 * @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
 */
/**
 * Reference to a previously launched ripple element.
 */
class RippleRef {
    constructor(_renderer, 
    /** Reference to the ripple HTML element. */
    element, 
    /** Ripple configuration used for the ripple. */
    config) {
        this._renderer = _renderer;
        this.element = element;
        this.config = config;
        /** Current state of the ripple. */
        this.state = 3 /* HIDDEN */;
    }
    /** Fades out the ripple element. */
    fadeOut() {
        this._renderer.fadeOutRipple(this);
    }
}

// TODO: import these values from `@material/ripple` eventually.
/**
 * Default ripple animation configuration for ripples without an explicit
 * animation config specified.
 */
const defaultRippleAnimationConfig = {
    enterDuration: 225,
    exitDuration: 150
};
/**
 * Timeout for ignoring mouse events. Mouse events will be temporary ignored after touch
 * events to avoid synthetic mouse events.
 */
const ignoreMouseEventsTimeout = 800;
/** Options that apply to all the event listeners that are bound by the ripple renderer. */
const passiveEventOptions = normalizePassiveListenerOptions({ passive: true });
/** Events that signal that the pointer is down. */
const pointerDownEvents = ['mousedown', 'touchstart'];
/** Events that signal that the pointer is up. */
const pointerUpEvents = ['mouseup', 'mouseleave', 'touchend', 'touchcancel'];
/**
 * Helper service that performs DOM manipulations. Not intended to be used outside this module.
 * The constructor takes a reference to the ripple directive's host element and a map of DOM
 * event handlers to be installed on the element that triggers ripple animations.
 * This will eventually become a custom renderer once Angular support exists.
 * @docs-private
 */
class RippleRenderer {
    constructor(_target, _ngZone, elementOrElementRef, platform) {
        this._target = _target;
        this._ngZone = _ngZone;
        /** Whether the pointer is currently down or not. */
        this._isPointerDown = false;
        /** Set of currently active ripple references. */
        this._activeRipples = new Set();
        /** Whether pointer-up event listeners have been registered. */
        this._pointerUpEventsRegistered = false;
        // Only do anything if we're on the browser.
        if (platform.isBrowser) {
            this._containerElement = coerceElement(elementOrElementRef);
        }
    }
    /**
     * Fades in a ripple at the given coordinates.
     * @param x Coordinate within the element, along the X axis at which to start the ripple.
     * @param y Coordinate within the element, along the Y axis at which to start the ripple.
     * @param config Extra ripple options.
     */
    fadeInRipple(x, y, config = {}) {
        const containerRect = this._containerRect =
            this._containerRect || this._containerElement.getBoundingClientRect();
        const animationConfig = Object.assign(Object.assign({}, defaultRippleAnimationConfig), config.animation);
        if (config.centered) {
            x = containerRect.left + containerRect.width / 2;
            y = containerRect.top + containerRect.height / 2;
        }
        const radius = config.radius || distanceToFurthestCorner(x, y, containerRect);
        const offsetX = x - containerRect.left;
        const offsetY = y - containerRect.top;
        const duration = animationConfig.enterDuration;
        const ripple = document.createElement('div');
        ripple.classList.add('mat-ripple-element');
        ripple.style.left = `${offsetX - radius}px`;
        ripple.style.top = `${offsetY - radius}px`;
        ripple.style.height = `${radius * 2}px`;
        ripple.style.width = `${radius * 2}px`;
        // If a custom color has been specified, set it as inline style. If no color is
        // set, the default color will be applied through the ripple theme styles.
        if (config.color != null) {
            ripple.style.backgroundColor = config.color;
        }
        ripple.style.transitionDuration = `${duration}ms`;
        this._containerElement.appendChild(ripple);
        // By default the browser does not recalculate the styles of dynamically created
        // ripple elements. This is critical because then the `scale` would not animate properly.
        enforceStyleRecalculation(ripple);
        ripple.style.transform = 'scale(1)';
        // Exposed reference to the ripple that will be returned.
        const rippleRef = new RippleRef(this, ripple, config);
        rippleRef.state = 0 /* FADING_IN */;
        // Add the ripple reference to the list of all active ripples.
        this._activeRipples.add(rippleRef);
        if (!config.persistent) {
            this._mostRecentTransientRipple = rippleRef;
        }
        // Wait for the ripple element to be completely faded in.
        // Once it's faded in, the ripple can be hidden immediately if the mouse is released.
        this._runTimeoutOutsideZone(() => {
            const isMostRecentTransientRipple = rippleRef === this._mostRecentTransientRipple;
            rippleRef.state = 1 /* VISIBLE */;
            // When the timer runs out while the user has kept their pointer down, we want to
            // keep only the persistent ripples and the latest transient ripple. We do this,
            // because we don't want stacked transient ripples to appear after their enter
            // animation has finished.
            if (!config.persistent && (!isMostRecentTransientRipple || !this._isPointerDown)) {
                rippleRef.fadeOut();
            }
        }, duration);
        return rippleRef;
    }
    /** Fades out a ripple reference. */
    fadeOutRipple(rippleRef) {
        const wasActive = this._activeRipples.delete(rippleRef);
        if (rippleRef === this._mostRecentTransientRipple) {
            this._mostRecentTransientRipple = null;
        }
        // Clear out the cached bounding rect if we have no more ripples.
        if (!this._activeRipples.size) {
            this._containerRect = null;
        }
        // For ripples that are not active anymore, don't re-run the fade-out animation.
        if (!wasActive) {
            return;
        }
        const rippleEl = rippleRef.element;
        const animationConfig = Object.assign(Object.assign({}, defaultRippleAnimationConfig), rippleRef.config.animation);
        rippleEl.style.transitionDuration = `${animationConfig.exitDuration}ms`;
        rippleEl.style.opacity = '0';
        rippleRef.state = 2 /* FADING_OUT */;
        // Once the ripple faded out, the ripple can be safely removed from the DOM.
        this._runTimeoutOutsideZone(() => {
            rippleRef.state = 3 /* HIDDEN */;
            rippleEl.parentNode.removeChild(rippleEl);
        }, animationConfig.exitDuration);
    }
    /** Fades out all currently active ripples. */
    fadeOutAll() {
        this._activeRipples.forEach(ripple => ripple.fadeOut());
    }
    /** Fades out all currently active non-persistent ripples. */
    fadeOutAllNonPersistent() {
        this._activeRipples.forEach(ripple => {
            if (!ripple.config.persistent) {
                ripple.fadeOut();
            }
        });
    }
    /** Sets up the trigger event listeners */
    setupTriggerEvents(elementOrElementRef) {
        const element = coerceElement(elementOrElementRef);
        if (!element || element === this._triggerElement) {
            return;
        }
        // Remove all previously registered event listeners from the trigger element.
        this._removeTriggerEvents();
        this._triggerElement = element;
        this._registerEvents(pointerDownEvents);
    }
    /**
     * Handles all registered events.
     * @docs-private
     */
    handleEvent(event) {
        if (event.type === 'mousedown') {
            this._onMousedown(event);
        }
        else if (event.type === 'touchstart') {
            this._onTouchStart(event);
        }
        else {
            this._onPointerUp();
        }
        // If pointer-up events haven't been registered yet, do so now.
        // We do this on-demand in order to reduce the total number of event listeners
        // registered by the ripples, which speeds up the rendering time for large UIs.
        if (!this._pointerUpEventsRegistered) {
            this._registerEvents(pointerUpEvents);
            this._pointerUpEventsRegistered = true;
        }
    }
    /** Function being called whenever the trigger is being pressed using mouse. */
    _onMousedown(event) {
        // Screen readers will fire fake mouse events for space/enter. Skip launching a
        // ripple in this case for consistency with the non-screen-reader experience.
        const isFakeMousedown = isFakeMousedownFromScreenReader(event);
        const isSyntheticEvent = this._lastTouchStartEvent &&
            Date.now() < this._lastTouchStartEvent + ignoreMouseEventsTimeout;
        if (!this._target.rippleDisabled && !isFakeMousedown && !isSyntheticEvent) {
            this._isPointerDown = true;
            this.fadeInRipple(event.clientX, event.clientY, this._target.rippleConfig);
        }
    }
    /** Function being called whenever the trigger is being pressed using touch. */
    _onTouchStart(event) {
        if (!this._target.rippleDisabled && !isFakeTouchstartFromScreenReader(event)) {
            // Some browsers fire mouse events after a `touchstart` event. Those synthetic mouse
            // events will launch a second ripple if we don't ignore mouse events for a specific
            // time after a touchstart event.
            this._lastTouchStartEvent = Date.now();
            this._isPointerDown = true;
            // Use `changedTouches` so we skip any touches where the user put
            // their finger down, but used another finger to tap the element again.
            const touches = event.changedTouches;
            for (let i = 0; i < touches.length; i++) {
                this.fadeInRipple(touches[i].clientX, touches[i].clientY, this._target.rippleConfig);
            }
        }
    }
    /** Function being called whenever the trigger is being released. */
    _onPointerUp() {
        if (!this._isPointerDown) {
            return;
        }
        this._isPointerDown = false;
        // Fade-out all ripples that are visible and not persistent.
        this._activeRipples.forEach(ripple => {
            // By default, only ripples that are completely visible will fade out on pointer release.
            // If the `terminateOnPointerUp` option is set, ripples that still fade in will also fade out.
            const isVisible = ripple.state === 1 /* VISIBLE */ ||
                ripple.config.terminateOnPointerUp && ripple.state === 0 /* FADING_IN */;
            if (!ripple.config.persistent && isVisible) {
                ripple.fadeOut();
            }
        });
    }
    /** Runs a timeout outside of the Angular zone to avoid triggering the change detection. */
    _runTimeoutOutsideZone(fn, delay = 0) {
        this._ngZone.runOutsideAngular(() => setTimeout(fn, delay));
    }
    /** Registers event listeners for a given list of events. */
    _registerEvents(eventTypes) {
        this._ngZone.runOutsideAngular(() => {
            eventTypes.forEach((type) => {
                this._triggerElement.addEventListener(type, this, passiveEventOptions);
            });
        });
    }
    /** Removes previously registered event listeners from the trigger element. */
    _removeTriggerEvents() {
        if (this._triggerElement) {
            pointerDownEvents.forEach((type) => {
                this._triggerElement.removeEventListener(type, this, passiveEventOptions);
            });
            if (this._pointerUpEventsRegistered) {
                pointerUpEvents.forEach((type) => {
                    this._triggerElement.removeEventListener(type, this, passiveEventOptions);
                });
            }
        }
    }
}
/** Enforces a style recalculation of a DOM element by computing its styles. */
function enforceStyleRecalculation(element) {
    // Enforce a style recalculation by calling `getComputedStyle` and accessing any property.
    // Calling `getPropertyValue` is important to let optimizers know that this is not a noop.
    // See: https://gist.github.com/paulirish/5d52fb081b3570c81e3a
    window.getComputedStyle(element).getPropertyValue('opacity');
}
/**
 * Returns the distance from the point (x, y) to the furthest corner of a rectangle.
 */
function distanceToFurthestCorner(x, y, rect) {
    const distX = Math.max(Math.abs(x - rect.left), Math.abs(x - rect.right));
    const distY = Math.max(Math.abs(y - rect.top), Math.abs(y - rect.bottom));
    return Math.sqrt(distX * distX + distY * distY);
}

/**
 * @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
 */
/** Injection token that can be used to specify the global ripple options. */
const MAT_RIPPLE_GLOBAL_OPTIONS = new InjectionToken('mat-ripple-global-options');
class MatRipple {
    constructor(_elementRef, ngZone, platform, globalOptions, _animationMode) {
        this._elementRef = _elementRef;
        this._animationMode = _animationMode;
        /**
         * If set, the radius in pixels of foreground ripples when fully expanded. If unset, the radius
         * will be the distance from the center of the ripple to the furthest corner of the host element's
         * bounding rectangle.
         */
        this.radius = 0;
        this._disabled = false;
        /** Whether ripple directive is initialized and the input bindings are set. */
        this._isInitialized = false;
        this._globalOptions = globalOptions || {};
        this._rippleRenderer = new RippleRenderer(this, ngZone, _elementRef, platform);
    }
    /**
     * Whether click events will not trigger the ripple. Ripples can be still launched manually
     * by using the `launch()` method.
     */
    get disabled() { return this._disabled; }
    set disabled(value) {
        if (value) {
            this.fadeOutAllNonPersistent();
        }
        this._disabled = value;
        this._setupTriggerEventsIfEnabled();
    }
    /**
     * The element that triggers the ripple when click events are received.
     * Defaults to the directive's host element.
     */
    get trigger() { return this._trigger || this._elementRef.nativeElement; }
    set trigger(trigger) {
        this._trigger = trigger;
        this._setupTriggerEventsIfEnabled();
    }
    ngOnInit() {
        this._isInitialized = true;
        this._setupTriggerEventsIfEnabled();
    }
    ngOnDestroy() {
        this._rippleRenderer._removeTriggerEvents();
    }
    /** Fades out all currently showing ripple elements. */
    fadeOutAll() {
        this._rippleRenderer.fadeOutAll();
    }
    /** Fades out all currently showing non-persistent ripple elements. */
    fadeOutAllNonPersistent() {
        this._rippleRenderer.fadeOutAllNonPersistent();
    }
    /**
     * Ripple configuration from the directive's input values.
     * @docs-private Implemented as part of RippleTarget
     */
    get rippleConfig() {
        return {
            centered: this.centered,
            radius: this.radius,
            color: this.color,
            animation: Object.assign(Object.assign(Object.assign({}, this._globalOptions.animation), (this._animationMode === 'NoopAnimations' ? { enterDuration: 0, exitDuration: 0 } : {})), this.animation),
            terminateOnPointerUp: this._globalOptions.terminateOnPointerUp,
        };
    }
    /**
     * Whether ripples on pointer-down are disabled or not.
     * @docs-private Implemented as part of RippleTarget
     */
    get rippleDisabled() {
        return this.disabled || !!this._globalOptions.disabled;
    }
    /** Sets up the trigger event listeners if ripples are enabled. */
    _setupTriggerEventsIfEnabled() {
        if (!this.disabled && this._isInitialized) {
            this._rippleRenderer.setupTriggerEvents(this.trigger);
        }
    }
    /** Launches a manual ripple at the specified coordinated or just by the ripple config. */
    launch(configOrX, y = 0, config) {
        if (typeof configOrX === 'number') {
            return this._rippleRenderer.fadeInRipple(configOrX, y, Object.assign(Object.assign({}, this.rippleConfig), config));
        }
        else {
            return this._rippleRenderer.fadeInRipple(0, 0, Object.assign(Object.assign({}, this.rippleConfig), configOrX));
        }
    }
}
MatRipple.decorators = [
    { type: Directive, args: [{
                selector: '[mat-ripple], [matRipple]',
                exportAs: 'matRipple',
                host: {
                    'class': 'mat-ripple',
                    '[class.mat-ripple-unbounded]': 'unbounded'
                }
            },] }
];
MatRipple.ctorParameters = () => [
    { type: ElementRef },
    { type: NgZone },
    { type: Platform },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_RIPPLE_GLOBAL_OPTIONS,] }] },
    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }
];
MatRipple.propDecorators = {
    color: [{ type: Input, args: ['matRippleColor',] }],
    unbounded: [{ type: Input, args: ['matRippleUnbounded',] }],
    centered: [{ type: Input, args: ['matRippleCentered',] }],
    radius: [{ type: Input, args: ['matRippleRadius',] }],
    animation: [{ type: Input, args: ['matRippleAnimation',] }],
    disabled: [{ type: Input, args: ['matRippleDisabled',] }],
    trigger: [{ type: Input, args: ['matRippleTrigger',] }]
};

/**
 * @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
 */
class MatRippleModule {
}
MatRippleModule.decorators = [
    { type: NgModule, args: [{
                imports: [MatCommonModule, PlatformModule],
                exports: [MatRipple, MatCommonModule],
                declarations: [MatRipple],
            },] }
];

/**
 * @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
 */
/**
 * Component that shows a simplified checkbox without including any kind of "real" checkbox.
 * Meant to be used when the checkbox is purely decorative and a large number of them will be
 * included, such as for the options in a multi-select. Uses no SVGs or complex animations.
 * Note that theming is meant to be handled by the parent element, e.g.
 * `mat-primary .mat-pseudo-checkbox`.
 *
 * Note that this component will be completely invisible to screen-reader users. This is *not*
 * interchangeable with `<mat-checkbox>` and should *not* be used if the user would directly
 * interact with the checkbox. The pseudo-checkbox should only be used as an implementation detail
 * of more complex components that appropriately handle selected / checked state.
 * @docs-private
 */
class MatPseudoCheckbox {
    constructor(_animationMode) {
        this._animationMode = _animationMode;
        /** Display state of the checkbox. */
        this.state = 'unchecked';
        /** Whether the checkbox is disabled. */
        this.disabled = false;
    }
}
MatPseudoCheckbox.decorators = [
    { type: Component, args: [{
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
                selector: 'mat-pseudo-checkbox',
                template: '',
                host: {
                    'class': 'mat-pseudo-checkbox',
                    '[class.mat-pseudo-checkbox-indeterminate]': 'state === "indeterminate"',
                    '[class.mat-pseudo-checkbox-checked]': 'state === "checked"',
                    '[class.mat-pseudo-checkbox-disabled]': 'disabled',
                    '[class._mat-animation-noopable]': '_animationMode === "NoopAnimations"',
                },
                styles: [".mat-pseudo-checkbox{width:16px;height:16px;border:2px solid;border-radius:2px;cursor:pointer;display:inline-block;vertical-align:middle;box-sizing:border-box;position:relative;flex-shrink:0;transition:border-color 90ms cubic-bezier(0, 0, 0.2, 0.1),background-color 90ms cubic-bezier(0, 0, 0.2, 0.1)}.mat-pseudo-checkbox::after{position:absolute;opacity:0;content:\"\";border-bottom:2px solid currentColor;transition:opacity 90ms cubic-bezier(0, 0, 0.2, 0.1)}.mat-pseudo-checkbox.mat-pseudo-checkbox-checked,.mat-pseudo-checkbox.mat-pseudo-checkbox-indeterminate{border-color:transparent}._mat-animation-noopable.mat-pseudo-checkbox{transition:none;animation:none}._mat-animation-noopable.mat-pseudo-checkbox::after{transition:none}.mat-pseudo-checkbox-disabled{cursor:default}.mat-pseudo-checkbox-indeterminate::after{top:5px;left:1px;width:10px;opacity:1;border-radius:2px}.mat-pseudo-checkbox-checked::after{top:2.4px;left:1px;width:8px;height:3px;border-left:2px solid currentColor;transform:rotate(-45deg);opacity:1;box-sizing:content-box}\n"]
            },] }
];
MatPseudoCheckbox.ctorParameters = () => [
    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }
];
MatPseudoCheckbox.propDecorators = {
    state: [{ type: Input }],
    disabled: [{ type: Input }]
};

/**
 * @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
 */
class MatPseudoCheckboxModule {
}
MatPseudoCheckboxModule.decorators = [
    { type: NgModule, args: [{
                imports: [MatCommonModule],
                exports: [MatPseudoCheckbox],
                declarations: [MatPseudoCheckbox]
            },] }
];

/**
 * @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
 */
/**
 * Injection token used to provide the parent component to options.
 */
const MAT_OPTION_PARENT_COMPONENT = new InjectionToken('MAT_OPTION_PARENT_COMPONENT');

/**
 * @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
 */
// Notes on the accessibility pattern used for `mat-optgroup`.
// The option group has two different "modes": regular and inert. The regular mode uses the
// recommended a11y pattern which has `role="group"` on the group element with `aria-labelledby`
// pointing to the label. This works for `mat-select`, but it seems to hit a bug for autocomplete
// under VoiceOver where the group doesn't get read out at all. The bug appears to be that if
// there's __any__ a11y-related attribute on the group (e.g. `role` or `aria-labelledby`),
// VoiceOver on Safari won't read it out.
// We've introduced the `inert` mode as a workaround. Under this mode, all a11y attributes are
// removed from the group, and we get the screen reader to read out the group label by mirroring it
// inside an invisible element in the option. This is sub-optimal, because the screen reader will
// repeat the group label on each navigation, whereas the default pattern only reads the group when
// the user enters a new group. The following alternate approaches were considered:
// 1. Reading out the group label using the `LiveAnnouncer` solves the problem, but we can't control
//    when the text will be read out so sometimes it comes in too late or never if the user
//    navigates quickly.
// 2. `<mat-option aria-describedby="groupLabel"` - This works on Safari, but VoiceOver in Chrome
//    won't read out the description at all.
// 3. `<mat-option aria-labelledby="optionLabel groupLabel"` - This works on Chrome, but Safari
//     doesn't read out the text at all. Furthermore, on
// Boilerplate for applying mixins to MatOptgroup.
/** @docs-private */
const _MatOptgroupMixinBase = mixinDisabled(class {
});
// Counter for unique group ids.
let _uniqueOptgroupIdCounter = 0;
class _MatOptgroupBase extends _MatOptgroupMixinBase {
    constructor(parent) {
        var _a;
        super();
        /** Unique id for the underlying label. */
        this._labelId = `mat-optgroup-label-${_uniqueOptgroupIdCounter++}`;
        this._inert = (_a = parent === null || parent === void 0 ? void 0 : parent.inertGroups) !== null && _a !== void 0 ? _a : false;
    }
}
_MatOptgroupBase.decorators = [
    { type: Directive }
];
_MatOptgroupBase.ctorParameters = () => [
    { type: undefined, decorators: [{ type: Inject, args: [MAT_OPTION_PARENT_COMPONENT,] }, { type: Optional }] }
];
_MatOptgroupBase.propDecorators = {
    label: [{ type: Input }]
};
/**
 * Injection token that can be used to reference instances of `MatOptgroup`. It serves as
 * alternative token to the actual `MatOptgroup` class which could cause unnecessary
 * retention of the class and its component metadata.
 */
const MAT_OPTGROUP = new InjectionToken('MatOptgroup');
/**
 * Component that is used to group instances of `mat-option`.
 */
class MatOptgroup extends _MatOptgroupBase {
}
MatOptgroup.decorators = [
    { type: Component, args: [{
                selector: 'mat-optgroup',
                exportAs: 'matOptgroup',
                template: "<span class=\"mat-optgroup-label\" aria-hidden=\"true\" [id]=\"_labelId\">{{ label }} <ng-content></ng-content></span>\n<ng-content select=\"mat-option, ng-container\"></ng-content>\n",
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
                inputs: ['disabled'],
                host: {
                    'class': 'mat-optgroup',
                    '[attr.role]': '_inert ? null : "group"',
                    '[attr.aria-disabled]': '_inert ? null : disabled.toString()',
                    '[attr.aria-labelledby]': '_inert ? null : _labelId',
                    '[class.mat-optgroup-disabled]': 'disabled',
                },
                providers: [{ provide: MAT_OPTGROUP, useExisting: MatOptgroup }],
                styles: [".mat-optgroup-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-optgroup-label[disabled]{cursor:default}[dir=rtl] .mat-optgroup-label{text-align:right}.mat-optgroup-label .mat-icon{margin-right:16px;vertical-align:middle}.mat-optgroup-label .mat-icon svg{vertical-align:top}[dir=rtl] .mat-optgroup-label .mat-icon{margin-left:16px;margin-right:0}\n"]
            },] }
];

/**
 * @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
 */
/**
 * Option IDs need to be unique across components, so this counter exists outside of
 * the component definition.
 */
let _uniqueIdCounter = 0;
/** Event object emitted by MatOption when selected or deselected. */
class MatOptionSelectionChange {
    constructor(
    /** Reference to the option that emitted the event. */
    source, 
    /** Whether the change in the option's value was a result of a user action. */
    isUserInput = false) {
        this.source = source;
        this.isUserInput = isUserInput;
    }
}
class _MatOptionBase {
    constructor(_element, _changeDetectorRef, _parent, group) {
        this._element = _element;
        this._changeDetectorRef = _changeDetectorRef;
        this._parent = _parent;
        this.group = group;
        this._selected = false;
        this._active = false;
        this._disabled = false;
        this._mostRecentViewValue = '';
        /** The unique ID of the option. */
        this.id = `mat-option-${_uniqueIdCounter++}`;
        /** Event emitted when the option is selected or deselected. */
        // tslint:disable-next-line:no-output-on-prefix
        this.onSelectionChange = new EventEmitter();
        /** Emits when the state of the option changes and any parents have to be notified. */
        this._stateChanges = new Subject();
    }
    /** Whether the wrapping component is in multiple selection mode. */
    get multiple() { return this._parent && this._parent.multiple; }
    /** Whether or not the option is currently selected. */
    get selected() { return this._selected; }
    /** Whether the option is disabled. */
    get disabled() { return (this.group && this.group.disabled) || this._disabled; }
    set disabled(value) { this._disabled = coerceBooleanProperty(value); }
    /** Whether ripples for the option are disabled. */
    get disableRipple() { return this._parent && this._parent.disableRipple; }
    /**
     * Whether or not the option is currently active and ready to be selected.
     * An active option displays styles as if it is focused, but the
     * focus is actually retained somewhere else. This comes in handy
     * for components like autocomplete where focus must remain on the input.
     */
    get active() {
        return this._active;
    }
    /**
     * The displayed value of the option. It is necessary to show the selected option in the
     * select's trigger.
     */
    get viewValue() {
        // TODO(kara): Add input property alternative for node envs.
        return (this._getHostElement().textContent || '').trim();
    }
    /** Selects the option. */
    select() {
        if (!this._selected) {
            this._selected = true;
            this._changeDetectorRef.markForCheck();
            this._emitSelectionChangeEvent();
        }
    }
    /** Deselects the option. */
    deselect() {
        if (this._selected) {
            this._selected = false;
            this._changeDetectorRef.markForCheck();
            this._emitSelectionChangeEvent();
        }
    }
    /** Sets focus onto this option. */
    focus(_origin, options) {
        // Note that we aren't using `_origin`, but we need to keep it because some internal consumers
        // use `MatOption` in a `FocusKeyManager` and we need it to match `FocusableOption`.
        const element = this._getHostElement();
        if (typeof element.focus === 'function') {
            element.focus(options);
        }
    }
    /**
     * This method sets display styles on the option to make it appear
     * active. This is used by the ActiveDescendantKeyManager so key
     * events will display the proper options as active on arrow key events.
     */
    setActiveStyles() {
        if (!this._active) {
            this._active = true;
            this._changeDetectorRef.markForCheck();
        }
    }
    /**
     * This method removes display styles on the option that made it appear
     * active. This is used by the ActiveDescendantKeyManager so key
     * events will display the proper options as active on arrow key events.
     */
    setInactiveStyles() {
        if (this._active) {
            this._active = false;
            this._changeDetectorRef.markForCheck();
        }
    }
    /** Gets the label to be used when determining whether the option should be focused. */
    getLabel() {
        return this.viewValue;
    }
    /** Ensures the option is selected when activated from the keyboard. */
    _handleKeydown(event) {
        if ((event.keyCode === ENTER || event.keyCode === SPACE) && !hasModifierKey(event)) {
            this._selectViaInteraction();
            // Prevent the page from scrolling down and form submits.
            event.preventDefault();
        }
    }
    /**
     * `Selects the option while indicating the selection came from the user. Used to
     * determine if the select's view -> model callback should be invoked.`
     */
    _selectViaInteraction() {
        if (!this.disabled) {
            this._selected = this.multiple ? !this._selected : true;
            this._changeDetectorRef.markForCheck();
            this._emitSelectionChangeEvent(true);
        }
    }
    /**
     * Gets the `aria-selected` value for the option. We explicitly omit the `aria-selected`
     * attribute from single-selection, unselected options. Including the `aria-selected="false"`
     * attributes adds a significant amount of noise to screen-reader users without providing useful
     * information.
     */
    _getAriaSelected() {
        return this.selected || (this.multiple ? false : null);
    }
    /** Returns the correct tabindex for the option depending on disabled state. */
    _getTabIndex() {
        return this.disabled ? '-1' : '0';
    }
    /** Gets the host DOM element. */
    _getHostElement() {
        return this._element.nativeElement;
    }
    ngAfterViewChecked() {
        // Since parent components could be using the option's label to display the selected values
        // (e.g. `mat-select`) and they don't have a way of knowing if the option's label has changed
        // we have to check for changes in the DOM ourselves and dispatch an event. These checks are
        // relatively cheap, however we still limit them only to selected options in order to avoid
        // hitting the DOM too often.
        if (this._selected) {
            const viewValue = this.viewValue;
            if (viewValue !== this._mostRecentViewValue) {
                this._mostRecentViewValue = viewValue;
                this._stateChanges.next();
            }
        }
    }
    ngOnDestroy() {
        this._stateChanges.complete();
    }
    /** Emits the selection change event. */
    _emitSelectionChangeEvent(isUserInput = false) {
        this.onSelectionChange.emit(new MatOptionSelectionChange(this, isUserInput));
    }
}
_MatOptionBase.decorators = [
    { type: Directive }
];
_MatOptionBase.ctorParameters = () => [
    { type: ElementRef },
    { type: ChangeDetectorRef },
    { type: undefined },
    { type: _MatOptgroupBase }
];
_MatOptionBase.propDecorators = {
    value: [{ type: Input }],
    id: [{ type: Input }],
    disabled: [{ type: Input }],
    onSelectionChange: [{ type: Output }]
};
/**
 * Single option inside of a `<mat-select>` element.
 */
class MatOption extends _MatOptionBase {
    constructor(element, changeDetectorRef, parent, group) {
        super(element, changeDetectorRef, parent, group);
    }
}
MatOption.decorators = [
    { type: Component, args: [{
                selector: 'mat-option',
                exportAs: 'matOption',
                host: {
                    'role': 'option',
                    '[attr.tabindex]': '_getTabIndex()',
                    '[class.mat-selected]': 'selected',
                    '[class.mat-option-multiple]': 'multiple',
                    '[class.mat-active]': 'active',
                    '[id]': 'id',
                    '[attr.aria-selected]': '_getAriaSelected()',
                    '[attr.aria-disabled]': 'disabled.toString()',
                    '[class.mat-option-disabled]': 'disabled',
                    '(click)': '_selectViaInteraction()',
                    '(keydown)': '_handleKeydown($event)',
                    'class': 'mat-option mat-focus-indicator',
                },
                template: "<mat-pseudo-checkbox *ngIf=\"multiple\" class=\"mat-option-pseudo-checkbox\"\n    [state]=\"selected ? 'checked' : 'unchecked'\" [disabled]=\"disabled\"></mat-pseudo-checkbox>\n\n<span class=\"mat-option-text\"><ng-content></ng-content></span>\n\n<!-- See a11y notes inside optgroup.ts for context behind this element. -->\n<span class=\"cdk-visually-hidden\" *ngIf=\"group && group._inert\">({{ group.label }})</span>\n\n<div class=\"mat-option-ripple\" mat-ripple\n     [matRippleTrigger]=\"_getHostElement()\"\n     [matRippleDisabled]=\"disabled || disableRipple\">\n</div>\n",
                encapsulation: ViewEncapsulation.None,
                changeDetection: ChangeDetectionStrategy.OnPush,
                styles: [".mat-option{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;position:relative;cursor:pointer;outline:none;display:flex;flex-direction:row;max-width:100%;box-sizing:border-box;align-items:center;-webkit-tap-highlight-color:transparent}.mat-option[disabled]{cursor:default}[dir=rtl] .mat-option{text-align:right}.mat-option .mat-icon{margin-right:16px;vertical-align:middle}.mat-option .mat-icon svg{vertical-align:top}[dir=rtl] .mat-option .mat-icon{margin-left:16px;margin-right:0}.mat-option[aria-disabled=true]{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-optgroup .mat-option:not(.mat-option-multiple){padding-left:32px}[dir=rtl] .mat-optgroup .mat-option:not(.mat-option-multiple){padding-left:16px;padding-right:32px}.cdk-high-contrast-active .mat-option{margin:0 1px}.cdk-high-contrast-active .mat-option.mat-active{border:solid 1px currentColor;margin:0}.cdk-high-contrast-active .mat-option[aria-disabled=true]{opacity:.5}.mat-option-text{display:inline-block;flex-grow:1;overflow:hidden;text-overflow:ellipsis}.mat-option .mat-option-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}.mat-option-pseudo-checkbox{margin-right:8px}[dir=rtl] .mat-option-pseudo-checkbox{margin-left:8px;margin-right:0}\n"]
            },] }
];
MatOption.ctorParameters = () => [
    { type: ElementRef },
    { type: ChangeDetectorRef },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_OPTION_PARENT_COMPONENT,] }] },
    { type: MatOptgroup, decorators: [{ type: Optional }, { type: Inject, args: [MAT_OPTGROUP,] }] }
];
/**
 * Counts the amount of option group labels that precede the specified option.
 * @param optionIndex Index of the option at which to start counting.
 * @param options Flat list of all of the options.
 * @param optionGroups Flat list of all of the option groups.
 * @docs-private
 */
function _countGroupLabelsBeforeOption(optionIndex, options, optionGroups) {
    if (optionGroups.length) {
        let optionsArray = options.toArray();
        let groups = optionGroups.toArray();
        let groupCounter = 0;
        for (let i = 0; i < optionIndex + 1; i++) {
            if (optionsArray[i].group && optionsArray[i].group === groups[groupCounter]) {
                groupCounter++;
            }
        }
        return groupCounter;
    }
    return 0;
}
/**
 * Determines the position to which to scroll a panel in order for an option to be into view.
 * @param optionOffset Offset of the option from the top of the panel.
 * @param optionHeight Height of the options.
 * @param currentScrollPosition Current scroll position of the panel.
 * @param panelHeight Height of the panel.
 * @docs-private
 */
function _getOptionScrollPosition(optionOffset, optionHeight, currentScrollPosition, panelHeight) {
    if (optionOffset < currentScrollPosition) {
        return optionOffset;
    }
    if (optionOffset + optionHeight > currentScrollPosition + panelHeight) {
        return Math.max(0, optionOffset - panelHeight + optionHeight);
    }
    return currentScrollPosition;
}

/**
 * @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
 */
class MatOptionModule {
}
MatOptionModule.decorators = [
    { type: NgModule, args: [{
                imports: [MatRippleModule, CommonModule, MatCommonModule, MatPseudoCheckboxModule],
                exports: [MatOption, MatOptgroup],
                declarations: [MatOption, MatOptgroup]
            },] }
];

/**
 * @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
 */

/**
 * Generated bundle index. Do not edit.
 */

export { AnimationCurves, AnimationDurations, DateAdapter, ErrorStateMatcher, MATERIAL_SANITY_CHECKS, MAT_DATE_FORMATS, MAT_DATE_LOCALE, MAT_DATE_LOCALE_FACTORY, MAT_NATIVE_DATE_FORMATS, MAT_OPTGROUP, MAT_OPTION_PARENT_COMPONENT, MAT_RIPPLE_GLOBAL_OPTIONS, MatCommonModule, MatLine, MatLineModule, MatNativeDateModule, MatOptgroup, MatOption, MatOptionModule, MatOptionSelectionChange, MatPseudoCheckbox, MatPseudoCheckboxModule, MatRipple, MatRippleModule, NativeDateAdapter, NativeDateModule, RippleRef, RippleRenderer, ShowOnDirtyErrorStateMatcher, VERSION$1 as VERSION, _MatOptgroupBase, _MatOptionBase, _countGroupLabelsBeforeOption, _getOptionScrollPosition, defaultRippleAnimationConfig, mixinColor, mixinDisableRipple, mixinDisabled, mixinErrorState, mixinInitialized, mixinTabIndex, setLines, ɵ0, MATERIAL_SANITY_CHECKS_FACTORY as ɵangular_material_src_material_core_core_a };
//# sourceMappingURL=core.js.map