@angular/material/fesm2015/tabs.js

Angular Material

import { FocusKeyManager, FocusMonitor, A11yModule } from '@angular/cdk/a11y';
import { ObserversModule } from '@angular/cdk/observers';
import { CdkPortal, TemplatePortal, CdkPortalOutlet, PortalHostDirective, PortalModule } from '@angular/cdk/portal';
import { DOCUMENT, CommonModule } from '@angular/common';
import { InjectionToken, Directive, ElementRef, NgZone, Inject, Optional, TemplateRef, Component, ChangeDetectionStrategy, ViewEncapsulation, ViewContainerRef, ContentChild, ViewChild, Input, ComponentFactoryResolver, forwardRef, EventEmitter, ChangeDetectorRef, Output, QueryList, ContentChildren, Attribute, NgModule } from '@angular/core';
import { mixinDisabled, mixinColor, mixinDisableRipple, mixinTabIndex, MAT_RIPPLE_GLOBAL_OPTIONS, RippleRenderer, MatCommonModule, MatRippleModule } from '@angular/material/core';
import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';
import { Subject, Subscription, merge, fromEvent, of, timer } from 'rxjs';
import { Directionality } from '@angular/cdk/bidi';
import { trigger, state, style, transition, animate } from '@angular/animations';
import { startWith, distinctUntilChanged, takeUntil } from 'rxjs/operators';
import { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';
import { ViewportRuler } from '@angular/cdk/scrolling';
import { normalizePassiveListenerOptions, Platform } from '@angular/cdk/platform';
import { hasModifierKey, SPACE, ENTER, END, HOME } from '@angular/cdk/keycodes';

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/ink-bar.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Interface for a a MatInkBar positioner method, defining the positioning and width of the ink
 * bar in a set of tabs.
 * @record
 */
function _MatInkBarPositioner() { }
/**
 * Injection token for the MatInkBar's Positioner.
 * @type {?}
 */
const _MAT_INK_BAR_POSITIONER = new InjectionToken('MatInkBarPositioner', {
    providedIn: 'root',
    factory: _MAT_INK_BAR_POSITIONER_FACTORY
});
/**
 * The default positioner function for the MatInkBar.
 * \@docs-private
 * @return {?}
 */
function _MAT_INK_BAR_POSITIONER_FACTORY() {
    /** @type {?} */
    const method = (/**
     * @param {?} element
     * @return {?}
     */
    (element) => ({
        left: element ? (element.offsetLeft || 0) + 'px' : '0',
        width: element ? (element.offsetWidth || 0) + 'px' : '0',
    }));
    return method;
}
/**
 * The ink-bar is used to display and animate the line underneath the current active tab label.
 * \@docs-private
 */
class MatInkBar {
    /**
     * @param {?} _elementRef
     * @param {?} _ngZone
     * @param {?} _inkBarPositioner
     * @param {?=} _animationMode
     */
    constructor(_elementRef, _ngZone, _inkBarPositioner, _animationMode) {
        this._elementRef = _elementRef;
        this._ngZone = _ngZone;
        this._inkBarPositioner = _inkBarPositioner;
        this._animationMode = _animationMode;
    }
    /**
     * Calculates the styles from the provided element in order to align the ink-bar to that element.
     * Shows the ink bar if previously set as hidden.
     * @param {?} element
     * @return {?}
     */
    alignToElement(element) {
        this.show();
        if (typeof requestAnimationFrame !== 'undefined') {
            this._ngZone.runOutsideAngular((/**
             * @return {?}
             */
            () => {
                requestAnimationFrame((/**
                 * @return {?}
                 */
                () => this._setStyles(element)));
            }));
        }
        else {
            this._setStyles(element);
        }
    }
    /**
     * Shows the ink bar.
     * @return {?}
     */
    show() {
        this._elementRef.nativeElement.style.visibility = 'visible';
    }
    /**
     * Hides the ink bar.
     * @return {?}
     */
    hide() {
        this._elementRef.nativeElement.style.visibility = 'hidden';
    }
    /**
     * Sets the proper styles to the ink bar element.
     * @private
     * @param {?} element
     * @return {?}
     */
    _setStyles(element) {
        /** @type {?} */
        const positions = this._inkBarPositioner(element);
        /** @type {?} */
        const inkBar = this._elementRef.nativeElement;
        inkBar.style.left = positions.left;
        inkBar.style.width = positions.width;
    }
}
MatInkBar.decorators = [
    { type: Directive, args: [{
                selector: 'mat-ink-bar',
                host: {
                    'class': 'mat-ink-bar',
                    '[class._mat-animation-noopable]': `_animationMode === 'NoopAnimations'`,
                },
            },] }
];
/** @nocollapse */
MatInkBar.ctorParameters = () => [
    { type: ElementRef },
    { type: NgZone },
    { type: undefined, decorators: [{ type: Inject, args: [_MAT_INK_BAR_POSITIONER,] }] },
    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }
];
if (false) {
    /**
     * @type {?}
     * @private
     */
    MatInkBar.prototype._elementRef;
    /**
     * @type {?}
     * @private
     */
    MatInkBar.prototype._ngZone;
    /**
     * @type {?}
     * @private
     */
    MatInkBar.prototype._inkBarPositioner;
    /** @type {?} */
    MatInkBar.prototype._animationMode;
}

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/tab-content.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Decorates the `ng-template` tags and reads out the template from it.
 */
class MatTabContent {
    /**
     * @param {?} template
     */
    constructor(template) {
        this.template = template;
    }
}
MatTabContent.decorators = [
    { type: Directive, args: [{ selector: '[matTabContent]' },] }
];
/** @nocollapse */
MatTabContent.ctorParameters = () => [
    { type: TemplateRef }
];
if (false) {
    /** @type {?} */
    MatTabContent.prototype.template;
}

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/tab-label.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Used to flag tab labels for use with the portal directive
 */
class MatTabLabel extends CdkPortal {
}
MatTabLabel.decorators = [
    { type: Directive, args: [{
                selector: '[mat-tab-label], [matTabLabel]',
            },] }
];

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/tab.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
// Boilerplate for applying mixins to MatTab.
/**
 * \@docs-private
 */
class MatTabBase {
}
/** @type {?} */
const _MatTabMixinBase = mixinDisabled(MatTabBase);
/**
 * Used to provide a tab group to a tab without causing a circular dependency.
 * \@docs-private
 * @type {?}
 */
const MAT_TAB_GROUP = new InjectionToken('MAT_TAB_GROUP');
class MatTab extends _MatTabMixinBase {
    /**
     * @param {?} _viewContainerRef
     * @param {?=} _closestTabGroup
     */
    constructor(_viewContainerRef, _closestTabGroup) {
        super();
        this._viewContainerRef = _viewContainerRef;
        this._closestTabGroup = _closestTabGroup;
        /**
         * Plain text label for the tab, used when there is no template label.
         */
        this.textLabel = '';
        /**
         * Portal that will be the hosted content of the tab
         */
        this._contentPortal = null;
        /**
         * Emits whenever the internal state of the tab changes.
         */
        this._stateChanges = new Subject();
        /**
         * The relatively indexed position where 0 represents the center, negative is left, and positive
         * represents the right.
         */
        this.position = null;
        /**
         * The initial relatively index origin of the tab if it was created and selected after there
         * was already a selected tab. Provides context of what position the tab should originate from.
         */
        this.origin = null;
        /**
         * Whether the tab is currently active.
         */
        this.isActive = false;
    }
    /**
     * Content for the tab label given by `<ng-template mat-tab-label>`.
     * @return {?}
     */
    get templateLabel() { return this._templateLabel; }
    /**
     * @param {?} value
     * @return {?}
     */
    set templateLabel(value) {
        // Only update the templateLabel via query if there is actually
        // a MatTabLabel found. This works around an issue where a user may have
        // manually set `templateLabel` during creation mode, which would then get clobbered
        // by `undefined` when this query resolves.
        if (value) {
            this._templateLabel = value;
        }
    }
    /**
     * \@docs-private
     * @return {?}
     */
    get content() {
        return this._contentPortal;
    }
    /**
     * @param {?} changes
     * @return {?}
     */
    ngOnChanges(changes) {
        if (changes.hasOwnProperty('textLabel') || changes.hasOwnProperty('disabled')) {
            this._stateChanges.next();
        }
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this._stateChanges.complete();
    }
    /**
     * @return {?}
     */
    ngOnInit() {
        this._contentPortal = new TemplatePortal(this._explicitContent || this._implicitContent, this._viewContainerRef);
    }
}
MatTab.decorators = [
    { type: Component, args: [{
                selector: 'mat-tab',
                template: "<!-- Create a template for the content of the <mat-tab> so that we can grab a reference to this\n    TemplateRef and use it in a Portal to render the tab content in the appropriate place in the\n    tab-group. -->\n<ng-template><ng-content></ng-content></ng-template>\n",
                inputs: ['disabled'],
                // tslint:disable-next-line:validate-decorators
                changeDetection: ChangeDetectionStrategy.Default,
                encapsulation: ViewEncapsulation.None,
                exportAs: 'matTab'
            }] }
];
/** @nocollapse */
MatTab.ctorParameters = () => [
    { type: ViewContainerRef },
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_TAB_GROUP,] }] }
];
MatTab.propDecorators = {
    templateLabel: [{ type: ContentChild, args: [MatTabLabel,] }],
    _explicitContent: [{ type: ContentChild, args: [MatTabContent, { read: TemplateRef, static: true },] }],
    _implicitContent: [{ type: ViewChild, args: [TemplateRef, { static: true },] }],
    textLabel: [{ type: Input, args: ['label',] }],
    ariaLabel: [{ type: Input, args: ['aria-label',] }],
    ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }]
};
if (false) {
    /** @type {?} */
    MatTab.ngAcceptInputType_disabled;
    /**
     * @type {?}
     * @private
     */
    MatTab.prototype._templateLabel;
    /**
     * Template provided in the tab content that will be used if present, used to enable lazy-loading
     * @type {?}
     */
    MatTab.prototype._explicitContent;
    /**
     * Template inside the MatTab view that contains an `<ng-content>`.
     * @type {?}
     */
    MatTab.prototype._implicitContent;
    /**
     * Plain text label for the tab, used when there is no template label.
     * @type {?}
     */
    MatTab.prototype.textLabel;
    /**
     * Aria label for the tab.
     * @type {?}
     */
    MatTab.prototype.ariaLabel;
    /**
     * Reference to the element that the tab is labelled by.
     * Will be cleared if `aria-label` is set at the same time.
     * @type {?}
     */
    MatTab.prototype.ariaLabelledby;
    /**
     * Portal that will be the hosted content of the tab
     * @type {?}
     * @private
     */
    MatTab.prototype._contentPortal;
    /**
     * Emits whenever the internal state of the tab changes.
     * @type {?}
     */
    MatTab.prototype._stateChanges;
    /**
     * The relatively indexed position where 0 represents the center, negative is left, and positive
     * represents the right.
     * @type {?}
     */
    MatTab.prototype.position;
    /**
     * The initial relatively index origin of the tab if it was created and selected after there
     * was already a selected tab. Provides context of what position the tab should originate from.
     * @type {?}
     */
    MatTab.prototype.origin;
    /**
     * Whether the tab is currently active.
     * @type {?}
     */
    MatTab.prototype.isActive;
    /**
     * @type {?}
     * @private
     */
    MatTab.prototype._viewContainerRef;
    /**
     * @deprecated `_closestTabGroup` parameter to become required.
     * \@breaking-change 10.0.0
     * @type {?}
     */
    MatTab.prototype._closestTabGroup;
}

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/tabs-animations.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Animations used by the Material tabs.
 * \@docs-private
 * @type {?}
 */
const matTabsAnimations = {
    /**
     * Animation translates a tab along the X axis.
     */
    translateTab: trigger('translateTab', [
        // Note: transitions to `none` instead of 0, because some browsers might blur the content.
        state('center, void, left-origin-center, right-origin-center', style({ transform: 'none' })),
        // If the tab is either on the left or right, we additionally add a `min-height` of 1px
        // in order to ensure that the element has a height before its state changes. This is
        // necessary because Chrome does seem to skip the transition in RTL mode if the element does
        // not have a static height and is not rendered. See related issue: #9465
        state('left', style({ transform: 'translate3d(-100%, 0, 0)', minHeight: '1px' })),
        state('right', style({ transform: 'translate3d(100%, 0, 0)', minHeight: '1px' })),
        transition('* => left, * => right, left => center, right => center', animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)')),
        transition('void => left-origin-center', [
            style({ transform: 'translate3d(-100%, 0, 0)' }),
            animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)')
        ]),
        transition('void => right-origin-center', [
            style({ transform: 'translate3d(100%, 0, 0)' }),
            animate('{{animationDuration}} cubic-bezier(0.35, 0, 0.25, 1)')
        ])
    ])
};

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/tab-body.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * The portal host directive for the contents of the tab.
 * \@docs-private
 */
class MatTabBodyPortal extends CdkPortalOutlet {
    /**
     * @param {?} componentFactoryResolver
     * @param {?} viewContainerRef
     * @param {?} _host
     * @param {?=} _document
     */
    constructor(componentFactoryResolver, viewContainerRef, _host, 
    /**
     * @deprecated `_document` parameter to be made required.
     * @breaking-change 9.0.0
     */
    _document) {
        super(componentFactoryResolver, viewContainerRef, _document);
        this._host = _host;
        /**
         * Subscription to events for when the tab body begins centering.
         */
        this._centeringSub = Subscription.EMPTY;
        /**
         * Subscription to events for when the tab body finishes leaving from center position.
         */
        this._leavingSub = Subscription.EMPTY;
    }
    /**
     * Set initial visibility or set up subscription for changing visibility.
     * @return {?}
     */
    ngOnInit() {
        super.ngOnInit();
        this._centeringSub = this._host._beforeCentering
            .pipe(startWith(this._host._isCenterPosition(this._host._position)))
            .subscribe((/**
         * @param {?} isCentering
         * @return {?}
         */
        (isCentering) => {
            if (isCentering && !this.hasAttached()) {
                this.attach(this._host._content);
            }
        }));
        this._leavingSub = this._host._afterLeavingCenter.subscribe((/**
         * @return {?}
         */
        () => {
            this.detach();
        }));
    }
    /**
     * Clean up centering subscription.
     * @return {?}
     */
    ngOnDestroy() {
        super.ngOnDestroy();
        this._centeringSub.unsubscribe();
        this._leavingSub.unsubscribe();
    }
}
MatTabBodyPortal.decorators = [
    { type: Directive, args: [{
                selector: '[matTabBodyHost]'
            },] }
];
/** @nocollapse */
MatTabBodyPortal.ctorParameters = () => [
    { type: ComponentFactoryResolver },
    { type: ViewContainerRef },
    { type: MatTabBody, decorators: [{ type: Inject, args: [forwardRef((/**
                     * @return {?}
                     */
                    () => MatTabBody)),] }] },
    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }
];
if (false) {
    /**
     * Subscription to events for when the tab body begins centering.
     * @type {?}
     * @private
     */
    MatTabBodyPortal.prototype._centeringSub;
    /**
     * Subscription to events for when the tab body finishes leaving from center position.
     * @type {?}
     * @private
     */
    MatTabBodyPortal.prototype._leavingSub;
    /**
     * @type {?}
     * @private
     */
    MatTabBodyPortal.prototype._host;
}
/**
 * Base class with all of the `MatTabBody` functionality.
 * \@docs-private
 * @abstract
 */
// tslint:disable-next-line:class-name
class _MatTabBodyBase {
    /**
     * @param {?} _elementRef
     * @param {?} _dir
     * @param {?} changeDetectorRef
     */
    constructor(_elementRef, _dir, changeDetectorRef) {
        this._elementRef = _elementRef;
        this._dir = _dir;
        /**
         * Subscription to the directionality change observable.
         */
        this._dirChangeSubscription = Subscription.EMPTY;
        /**
         * Emits when an animation on the tab is complete.
         */
        this._translateTabComplete = new Subject();
        /**
         * Event emitted when the tab begins to animate towards the center as the active tab.
         */
        this._onCentering = new EventEmitter();
        /**
         * Event emitted before the centering of the tab begins.
         */
        this._beforeCentering = new EventEmitter();
        /**
         * Event emitted before the centering of the tab begins.
         */
        this._afterLeavingCenter = new EventEmitter();
        /**
         * Event emitted when the tab completes its animation towards the center.
         */
        this._onCentered = new EventEmitter(true);
        // Note that the default value will always be overwritten by `MatTabBody`, but we need one
        // anyway to prevent the animations module from throwing an error if the body is used on its own.
        /**
         * Duration for the tab's animation.
         */
        this.animationDuration = '500ms';
        if (_dir) {
            this._dirChangeSubscription = _dir.change.subscribe((/**
             * @param {?} dir
             * @return {?}
             */
            (dir) => {
                this._computePositionAnimationState(dir);
                changeDetectorRef.markForCheck();
            }));
        }
        // Ensure that we get unique animation events, because the `.done` callback can get
        // invoked twice in some browsers. See https://github.com/angular/angular/issues/24084.
        this._translateTabComplete.pipe(distinctUntilChanged((/**
         * @param {?} x
         * @param {?} y
         * @return {?}
         */
        (x, y) => {
            return x.fromState === y.fromState && x.toState === y.toState;
        }))).subscribe((/**
         * @param {?} event
         * @return {?}
         */
        event => {
            // If the transition to the center is complete, emit an event.
            if (this._isCenterPosition(event.toState) && this._isCenterPosition(this._position)) {
                this._onCentered.emit();
            }
            if (this._isCenterPosition(event.fromState) && !this._isCenterPosition(this._position)) {
                this._afterLeavingCenter.emit();
            }
        }));
    }
    /**
     * The shifted index position of the tab body, where zero represents the active center tab.
     * @param {?} position
     * @return {?}
     */
    set position(position) {
        this._positionIndex = position;
        this._computePositionAnimationState();
    }
    /**
     * After initialized, check if the content is centered and has an origin. If so, set the
     * special position states that transition the tab from the left or right before centering.
     * @return {?}
     */
    ngOnInit() {
        if (this._position == 'center' && this.origin != null) {
            this._position = this._computePositionFromOrigin(this.origin);
        }
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this._dirChangeSubscription.unsubscribe();
        this._translateTabComplete.complete();
    }
    /**
     * @param {?} event
     * @return {?}
     */
    _onTranslateTabStarted(event) {
        /** @type {?} */
        const isCentering = this._isCenterPosition(event.toState);
        this._beforeCentering.emit(isCentering);
        if (isCentering) {
            this._onCentering.emit(this._elementRef.nativeElement.clientHeight);
        }
    }
    /**
     * The text direction of the containing app.
     * @return {?}
     */
    _getLayoutDirection() {
        return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr';
    }
    /**
     * Whether the provided position state is considered center, regardless of origin.
     * @param {?} position
     * @return {?}
     */
    _isCenterPosition(position) {
        return position == 'center' ||
            position == 'left-origin-center' ||
            position == 'right-origin-center';
    }
    /**
     * Computes the position state that will be used for the tab-body animation trigger.
     * @private
     * @param {?=} dir
     * @return {?}
     */
    _computePositionAnimationState(dir = this._getLayoutDirection()) {
        if (this._positionIndex < 0) {
            this._position = dir == 'ltr' ? 'left' : 'right';
        }
        else if (this._positionIndex > 0) {
            this._position = dir == 'ltr' ? 'right' : 'left';
        }
        else {
            this._position = 'center';
        }
    }
    /**
     * Computes the position state based on the specified origin position. This is used if the
     * tab is becoming visible immediately after creation.
     * @private
     * @param {?} origin
     * @return {?}
     */
    _computePositionFromOrigin(origin) {
        /** @type {?} */
        const dir = this._getLayoutDirection();
        if ((dir == 'ltr' && origin <= 0) || (dir == 'rtl' && origin > 0)) {
            return 'left-origin-center';
        }
        return 'right-origin-center';
    }
}
_MatTabBodyBase.decorators = [
    { type: Directive }
];
/** @nocollapse */
_MatTabBodyBase.ctorParameters = () => [
    { type: ElementRef },
    { type: Directionality, decorators: [{ type: Optional }] },
    { type: ChangeDetectorRef }
];
_MatTabBodyBase.propDecorators = {
    _onCentering: [{ type: Output }],
    _beforeCentering: [{ type: Output }],
    _afterLeavingCenter: [{ type: Output }],
    _onCentered: [{ type: Output }],
    _content: [{ type: Input, args: ['content',] }],
    origin: [{ type: Input }],
    animationDuration: [{ type: Input }],
    position: [{ type: Input }]
};
if (false) {
    /**
     * Current position of the tab-body in the tab-group. Zero means that the tab is visible.
     * @type {?}
     * @private
     */
    _MatTabBodyBase.prototype._positionIndex;
    /**
     * Subscription to the directionality change observable.
     * @type {?}
     * @private
     */
    _MatTabBodyBase.prototype._dirChangeSubscription;
    /**
     * Tab body position state. Used by the animation trigger for the current state.
     * @type {?}
     */
    _MatTabBodyBase.prototype._position;
    /**
     * Emits when an animation on the tab is complete.
     * @type {?}
     */
    _MatTabBodyBase.prototype._translateTabComplete;
    /**
     * Event emitted when the tab begins to animate towards the center as the active tab.
     * @type {?}
     */
    _MatTabBodyBase.prototype._onCentering;
    /**
     * Event emitted before the centering of the tab begins.
     * @type {?}
     */
    _MatTabBodyBase.prototype._beforeCentering;
    /**
     * Event emitted before the centering of the tab begins.
     * @type {?}
     */
    _MatTabBodyBase.prototype._afterLeavingCenter;
    /**
     * Event emitted when the tab completes its animation towards the center.
     * @type {?}
     */
    _MatTabBodyBase.prototype._onCentered;
    /**
     * The portal host inside of this container into which the tab body content will be loaded.
     * @type {?}
     */
    _MatTabBodyBase.prototype._portalHost;
    /**
     * The tab body content to display.
     * @type {?}
     */
    _MatTabBodyBase.prototype._content;
    /**
     * Position that will be used when the tab is immediately becoming visible after creation.
     * @type {?}
     */
    _MatTabBodyBase.prototype.origin;
    /**
     * Duration for the tab's animation.
     * @type {?}
     */
    _MatTabBodyBase.prototype.animationDuration;
    /**
     * @type {?}
     * @private
     */
    _MatTabBodyBase.prototype._elementRef;
    /**
     * @type {?}
     * @private
     */
    _MatTabBodyBase.prototype._dir;
}
/**
 * Wrapper for the contents of a tab.
 * \@docs-private
 */
class MatTabBody extends _MatTabBodyBase {
    /**
     * @param {?} elementRef
     * @param {?} dir
     * @param {?} changeDetectorRef
     */
    constructor(elementRef, dir, changeDetectorRef) {
        super(elementRef, dir, changeDetectorRef);
    }
}
MatTabBody.decorators = [
    { type: Component, args: [{
                selector: 'mat-tab-body',
                template: "<div class=\"mat-tab-body-content\" #content\n     [@translateTab]=\"{\n        value: _position,\n        params: {animationDuration: animationDuration}\n     }\"\n     (@translateTab.start)=\"_onTranslateTabStarted($event)\"\n     (@translateTab.done)=\"_translateTabComplete.next($event)\">\n  <ng-template matTabBodyHost></ng-template>\n</div>\n",
                encapsulation: ViewEncapsulation.None,
                // tslint:disable-next-line:validate-decorators
                changeDetection: ChangeDetectionStrategy.Default,
                animations: [matTabsAnimations.translateTab],
                host: {
                    'class': 'mat-tab-body',
                },
                styles: [".mat-tab-body-content{height:100%;overflow:auto}.mat-tab-group-dynamic-height .mat-tab-body-content{overflow:hidden}\n"]
            }] }
];
/** @nocollapse */
MatTabBody.ctorParameters = () => [
    { type: ElementRef },
    { type: Directionality, decorators: [{ type: Optional }] },
    { type: ChangeDetectorRef }
];
MatTabBody.propDecorators = {
    _portalHost: [{ type: ViewChild, args: [PortalHostDirective,] }]
};
if (false) {
    /** @type {?} */
    MatTabBody.prototype._portalHost;
}

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/tab-config.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Object that can be used to configure the default options for the tabs module.
 * @record
 */
function MatTabsConfig() { }
if (false) {
    /**
     * Duration for the tab animation. Must be a valid CSS value (e.g. 600ms).
     * @type {?|undefined}
     */
    MatTabsConfig.prototype.animationDuration;
    /**
     * Whether pagination should be disabled. This can be used to avoid unnecessary
     * layout recalculations if it's known that pagination won't be required.
     * @type {?|undefined}
     */
    MatTabsConfig.prototype.disablePagination;
    /**
     * Whether the ink bar should fit its width to the size of the tab label content.
     * This only applies to the MDC-based tabs.
     * @type {?|undefined}
     */
    MatTabsConfig.prototype.fitInkBarToContent;
}
/**
 * Injection token that can be used to provide the default options the tabs module.
 * @type {?}
 */
const MAT_TABS_CONFIG = new InjectionToken('MAT_TABS_CONFIG');

/**
 * @fileoverview added by tsickle
 * Generated from: src/material/tabs/tab-group.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Used to generate unique ID's for each tab component
 * @type {?}
 */
let nextId = 0;
/**
 * A simple change event emitted on focus or selection changes.
 */
class MatTabChangeEvent {
}
if (false) {
    /**
     * Index of the currently-selected tab.
     * @type {?}
     */
    MatTabChangeEvent.prototype.index;
    /**
     * Reference to the currently-selected tab.
     * @type {?}
     */
    MatTabChangeEvent.prototype.tab;
}
// Boilerplate for applying mixins to MatTabGroup.
/**
 * \@docs-private
 */
class MatTabGroupMixinBase {
    /**
     * @param {?} _elementRef
     */
    constructor(_elementRef) {
        this._elementRef = _elementRef;
    }
}
if (false) {
    /** @type {?} */
    MatTabGroupMixinBase.prototype._elementRef;
}
/** @type {?} */
const _MatTabGroupMixinBase = mixinColor(mixinDisableRipple(MatTabGroupMixinBase), 'primary');
/**
 * @record
 */
function MatTabGroupBaseHeader() { }
if (false) {
    /** @type {?} */
    MatTabGroupBaseHeader.prototype._alignInkBarToSelectedTab;
    /** @type {?} */
    MatTabGroupBaseHeader.prototype.focusIndex;
}
/**
 * Base class with all of the `MatTabGroupBase` functionality.
 * \@docs-private
 * @abstract
 */
// tslint:disable-next-line:class-name
class _MatTabGroupBase extends _MatTabGroupMixinBase {
    /**
     * @param {?} elementRef
     * @param {?} _changeDetectorRef
     * @param {?=} defaultConfig
     * @param {?=} _animationMode
     */
    constructor(elementRef, _changeDetectorRef, defaultConfig, _animationMode) {
        super(elementRef);
        this._changeDetectorRef = _changeDetectorRef;
        this._animationMode = _animationMode;
        /**
         * All of the tabs that belong to the group.
         */
        this._tabs = new QueryList();
        /**
         * The tab index that should be selected after the content has been checked.
         */
        this._indexToSelect = 0;
        /**
         * Snapshot of the height of the tab body wrapper before another tab is activated.
         */
        this._tabBodyWrapperHeight = 0;
        /**
         * Subscription to tabs being added/removed.
         */
        this._tabsSubscription = Subscription.EMPTY;
        /**
         * Subscription to changes in the tab labels.
         */
        this._tabLabelSubscription = Subscription.EMPTY;
        this._dynamicHeight = false;
        this._selectedIndex = null;
        /**
         * Position of the tab header.
         */
        this.headerPosition = 'above';
        /**
         * Output to enable support for two-way binding on `[(selectedIndex)]`
         */
        this.selectedIndexChange = new EventEmitter();
        /**
         * Event emitted when focus has changed within a tab group.
         */
        this.focusChange = new EventEmitter();
        /**
         * Event emitted when the body animation has completed
         */
        this.animationDone = new EventEmitter();
        /**
         * Event emitted when the tab selection has changed.
         */
        this.selectedTabChange = new EventEmitter(true);
        this._groupId = nextId++;
        this.animationDuration = defaultConfig && defaultConfig.animationDuration ?
            defaultConfig.animationDuration : '500ms';
        this.disablePagination = defaultConfig && defaultConfig.disablePagination != null ?
            defaultConfig.disablePagination : false;
    }
    /**
     * Whether the tab group should grow to the size of the active tab.
     * @return {?}
     */
    get dynamicHeight() { return this._dynamicHeight; }
    /**
     * @param {?} value
     * @return {?}
     */
    set dynamicHeight(value) { this._dynamicHeight = coerceBooleanProperty(value); }
    /**
     * The index of the active tab.
     * @return {?}
     */
    get selectedIndex() { return this._selectedIndex; }
    /**
     * @param {?} value
     * @return {?}
     */
    set selectedIndex(value) {
        this._indexToSelect = coerceNumberProperty(value, null);
    }
    /**
     * Duration for the tab animation. Will be normalized to milliseconds if no units are set.
     * @return {?}
     */
    get animationDuration() { return this._animationDuration; }
    /**
     * @param {?} value
     * @return {?}
     */
    set animationDuration(value) {
        this._animationDuration = /^\d+$/.test(value) ? value + 'ms' : value;
    }
    /**
     * Background color of the tab group.
     * @return {?}
     */
    get backgroundColor() { return this._backgroundColor; }
    /**
     * @param {?} value
     * @return {?}
     */
    set backgroundColor(value) {
        /** @type {?} */
        const nativeElement = this._elementRef.nativeElement;
        nativeElement.classList.remove(`mat-background-${this.backgroundColor}`);
        if (value) {
            nativeElement.classList.add(`mat-background-${value}`);
        }
        this._backgroundColor = value;
    }
    /**
     * After the content is checked, this component knows what tabs have been defined
     * and what the selected index should be. This is where we can know exactly what position
     * each tab should be in according to the new selected index, and additionally we know how
     * a new selected tab should transition in (from the left or right).
     * @return {?}
     */
    ngAfterContentChecked() {
        // Don't clamp the `indexToSelect` immediately in the setter because it can happen that
        // the amount of tabs changes before the actual change detection runs.
        /** @type {?} */
        const indexToSelect = this._indexToSelect = this._clampTabIndex(this._indexToSelect);
        // If there is a change in selected index, emit a change event. Should not trigger if
        // the selected index has not yet been initialized.
        if (this._selectedIndex != indexToSelect) {
            /** @type {?} */
            const isFirstRun = this._selectedIndex == null;
            if (!isFirstRun) {
                this.selectedTabChange.emit(this._createChangeEvent(indexToSelect));
            }
            // Changing these values after change detection has run
            // since the checked content may contain references to them.
            Promise.resolve().then((/**
             * @return {?}
             */
            () => {
                this._tabs.forEach((/**
                 * @param {?} tab
                 * @param {?} index
                 * @return {?}
                 */
                (tab, index) => tab.isActive = index === indexToSelect));
                if (!isFirstRun) {
                    this.selectedIndexChange.emit(indexToSelect);
                }
            }));
        }
        // Setup the position for each tab and optionally setup an origin on the next selected tab.
        this._tabs.forEach((/**
         * @param {?} tab
         * @param {?} index
         * @return {?}
         */
        (tab, index) => {
            tab.position = index - indexToSelect;
            // If there is already a selected tab, then set up an origin for the next selected tab
            // if it doesn't have one already.
            if (this._selectedIndex != null && tab.position == 0 && !tab.origin) {
                tab.origin = indexToSelect - this._selectedIndex;
            }
        }));
        if (this._selectedIndex !== indexToSelect) {
            this._selectedIndex = indexToSelect;
            this._changeDetectorRef.markForCheck();
        }
    }
    /**
     * @return {?}
     */
    ngAfterContentInit() {
        this._subscribeToAllTabChanges();
        this._subscribeToTabLabels();
        // Subscribe to changes in the amount of tabs, in order to be
        // able to re-render the content as new tabs are added or removed.
        this._tabsSubscription = this._tabs.changes.subscribe((/**
         * @return {?}
         */
        () => {
            /** @type {?} */
            const indexToSelect = this._clampTabIndex(this._indexToSelect);
            // Maintain the previously-selected tab if a new tab is added or removed and there is no
            // explicit change that selects a different tab.
            if (indexToSelect === this._selectedIndex) {
                /** @type {?} */
                const tabs = this._tabs.toArray();
                for (let i = 0; i < tabs.length; i++) {
                    if (tabs[i].isActive) {
                        // Assign both to the `_indexToSelect` and `_selectedIndex` so we don't fire a changed
                        // event, otherwise the consumer may end up in an infinite loop in some edge cases like
                        // adding a tab within the `selectedIndexChange` event.
                        this._indexToSelect = this._selectedIndex = i;
                        break;
                    }
                }
            }
            this._changeDetectorRef.markForCheck();
        }));
    }
    /**
     * Listens to changes in all of the tabs.
     * @private
     * @return {?}
     */
    _subscribeToAllTabChanges() {
        // Since we use a query with `descendants: true` to pick up the tabs, we may end up catching
        // some that are inside of nested tab groups. We filter them out manually by checking that
        // the closest group to the tab is the current one.
        this._allTabs.changes
            .pipe(startWith(this._allTabs))
            .subscribe((/**
         * @param {?} tabs
         * @return {?}
         */
        (tabs) => {
            this._tabs.reset(tabs.filter((/**
             * @param {?} tab
             * @return {?}
             */
            tab => {
                // @breaking-change 10.0.0 Remove null check for `_closestTabGroup`
                // once it becomes a required parameter in MatTab.
                return !tab._closestTabGroup || tab._closestTabGroup === this;
            })));
            this._tabs.notifyOnChanges();
        }));
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        this._tabs.destroy();
        this._tabsSubscription.unsubscribe();
        this._tabLabelSubscription.unsubscribe();
    }
    /**
     * Re-aligns the ink bar to the selected tab element.
     * @return {?}
     */
    realignInkBar() {
        if (this._tabHeader) {
            this._tabHeader._alignInkBarToSelectedTab();
        }
    }
    /**
     * @param {?} index
     * @return {?}
     */
    _focusChanged(index) {
        this.focusChange.emit(this._createChangeEvent(index));
    }
    /**
     * @private
     * @param {?} index
     * @return {?}
     */
    _createChangeEvent(index) {
        /** @type {?} */
        const event = new MatTabChangeEvent;
        event.index = index;
        if (this._tabs && this._tabs.length) {
            event.tab = this._tabs.toArray()[index];
        }
        return event;
    }
    /**
     * Subscribes to changes in the tab labels. This is needed, because the \@Input for the label is
     * on the MatTab component, whereas the data binding is inside the MatTabGroup. In order for the
     * binding to be updated, we need to subscribe to changes in it and trigger change detection
     * manually.
     * @private
     * @return {?}
     */
    _subscribeToTabLabels() {
        if (this._tabLabelSubscription) {
            this._tabLabelSubscription.unsubscribe();
        }
        this._tabLabelSubscription = merge(...this._tabs.map((/**
         * @param {?} tab
         * @return {?}
         */
        tab => tab._stateChanges)))
            .subscribe((/**
         * @return {?}
         */
        () => this._changeDetectorRef.markForCheck()));
    }
    /**
     * Clamps the given index to the bounds of 0 and the tabs length.
     * @private
     * @param {?} index
     * @return {?}
     */
    _clampTabIndex(index) {
        // Note the `|| 0`, which ensures that values like NaN can't get through
        // and which would otherwise throw the component into an infinite loop
        // (since Math.max(NaN, 0) === NaN).
        return Math.min(this._tabs.length - 1, Math.max(index || 0, 0));
    }
    /**
     * Returns a unique id for each tab label element
     * @param {?} i
     * @return {?}
     */
    _getTabLabelId(i) {
        return `mat-tab-label-${this._groupId}-${i}`;
    }
    /**
     * Returns a unique id for each tab content element
     * @param {?} i
     * @return {?}
     */
    _getTabContentId(i) {
        return `mat-tab-content-${this._groupId}-${i}`;
    }
    /**
     * Sets the height of the body wrapper to the height of the activating tab if dynamic
     * height property is true.
     * @param {?} tabHeight
     * @return {?}
     */
    _setTabBodyWrapperHeight(tabHeight) {
        if (!this._dynamicHeight || !this._tabBodyWrapperHeight) {
            return;
        }
        /** @type {?} */
        const wrapper = this._tabBodyWrapper.nativeElement;
        wrapper.style.height = this._tabBodyWrapperHeight + 'px';
        // This conditional forces the browser to paint the height so that
        // the animation to the new height can have an origin.
        if (this._tabBodyWrapper.nativeElement.offsetHeight) {
            wrapper.style.height = tabHeight + 'px';
        }
    }
    /**
     * Removes the height of the tab body wrapper.
     * @return {?}
     */
    _removeTabBodyWrapperHeight() {
        /** @type {?} */
        const wrapper = this._tabBodyWrapper.nativeElement;
        this._tabBodyWrapperHeight = wrapper.clientHeight;
        wrapper.style.height = '';
        this.animationDone.emit();
    }
    /**
     * Handle click events, setting new selected index if appropriate.
     * @param {?} tab
     * @param {?} tabHeader
     * @param {?} index
     * @return {?}
     */
    _handleClick(tab, tabHeader, index) {
        if (!tab.disabled) {
            this.selectedIndex = tabHeader.focusIndex = index;
        }
    }
    /**
     * Retrieves the tabindex for the tab.
     * @param {?} tab
     * @param {?} idx
     * @return {?}
     */
    _getTabIndex(tab, idx) {
        if (tab.disabled) {
            return null;
        }
        return this.selectedIndex === idx ? 0 : -1;
    }
}
_MatTabGroupBase.decorators = [
    { type: Directive }
];
/** @nocollapse */
_MatTabGroupBase.ctorParameters = () => [
    { type: ElementRef },
    { type: ChangeDetectorRef },
    { type: undefined, decorators: [{ type: Inject, args: [MAT_TABS_CONFIG,] }, { type: Optional }] },
    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }
];
_MatTabGroupBase.propDecorators = {
    dynamicHeight: [{ type: Input }],
    selectedIndex: [{ type: Input }],
    headerPosition: [{ type: Input }],
    animationDuration: [{ type: Input }],
    disablePagination: [{ type: Input }],
    backgroundColor: [{ type: Input }],
    selectedIndexChange: [{ type: Output }],
    focusChange: [{ type: Output }],
    animationDone: [{ type: Output }],
    selectedTabChange: [{ type: Output }]
};
if (false) {
    /** @type {?} */
    _MatTabGroupBase.ngAcceptInputType_dynamicHeight;
    /** @type {?} */
    _MatTabGroupBase.ngAcceptInputType_animationDuration;
    /** @type {?} */
    _MatTabGroupBase.ngAcceptInputType_selectedIndex;
    /** @type {?} */
    _MatTabGroupBase.ngAcceptInputType_disableRipple;
    /**
     * All tabs inside the tab group. This includes tabs that belong to groups that are nested
     * inside the current one. We filter out only the tabs that belong to this group in `_tabs`.
     * @type {?}
     */
    _MatTabGroupBase.prototype._allTabs;
    /** @type {?} */
    _MatTabGroupBase.prototype._tabBodyWrapper;
    /** @type {?} */
    _MatTabGroupBase.prototype._tabHeader;
    /**
     * All of the tabs that belong to the group.
     * @type {?}
     */
    _MatTabGroupBase.prototype._tabs;
    /**
     * The tab index that should be selected after the content has been checked.
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._indexToSelect;
    /**
     * Snapshot of the height of the tab body wrapper before another tab is activated.
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._tabBodyWrapperHeight;
    /**
     * Subscription to tabs being added/removed.
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._tabsSubscription;
    /**
     * Subscription to changes in the tab labels.
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._tabLabelSubscription;
    /**
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._dynamicHeight;
    /**
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._selectedIndex;
    /**
     * Position of the tab header.
     * @type {?}
     */
    _MatTabGroupBase.prototype.headerPosition;
    /**
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._animationDuration;
    /**
     * Whether pagination should be disabled. This can be used to avoid unnecessary
     * layout recalculations if it's known that pagination won't be required.
     * @type {?}
     */
    _MatTabGroupBase.prototype.disablePagination;
    /**
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._backgroundColor;
    /**
     * Output to enable support for two-way binding on `[(selectedIndex)]`
     * @type {?}
     */
    _MatTabGroupBase.prototype.selectedIndexChange;
    /**
     * Event emitted when focus has changed within a tab group.
     * @type {?}
     */
    _MatTabGroupBase.prototype.focusChange;
    /**
     * Event emitted when the body animation has completed
     * @type {?}
     */
    _MatTabGroupBase.prototype.animationDone;
    /**
     * Event emitted when the tab selection has changed.
     * @type {?}
     */
    _MatTabGroupBase.prototype.selectedTabChange;
    /**
     * @type {?}
     * @private
     */
    _MatTabGroupBase.prototype._groupId;
    /**
     * @type {?}
     * @protected
     */
    _MatTabGroupBase.prototype._changeDetectorRef;
    /** @type {?} */
    _MatTabGroupBase.prototype._animationMode;
}
/**
 * Material design tab-group component. Supports basic tab pairs (label + content) and includes
 * animated ink-bar, keyboard navigation, and screen reader.
 * See: https://material.io/design/components/tabs.html
 */
class MatTabGroup extends _MatTabGroupBase {
    /**
     * @param {?} elementRef
     * @param {?} changeDetectorRef
     * @param {?=} defaultConfig
     * @param {?=} animationMode
     */
    constructor(elementRef, changeDetectorRef, defaultConfig, animationMode) {
        super(elementRef, changeDetectorRef, defaultConfig, animationMode);
    }
}
MatTabGroup.decorators = [
    { type: Component, args: [{
                selector: 'mat-tab-group',
                exportAs: 'matTabGroup',
                template: "<mat-tab-header #tabHeader\n               [selectedIndex]=\"selectedIndex || 0\"\n               [disableRipple]=\"disableRipple\"\n               [disablePagination]=\"disablePagination\"\n               (indexFocused)=\"_focusChanged($event)\"\n               (selectFocusedIndex)=\"selectedIndex = $event\">\n  <div class=\"mat-tab-label\" role=\"tab\" matTabLabelWrapper mat-ripple cdkMonitorElementFocus\n       *ngFor=\"let tab of _tabs; let i = index\"\n       [id]=\"_getTabLabelId(i)\"\n       [attr.tabIndex]=\"_getTabIndex(tab, i)\"\n       [attr.aria-posinset]=\"i + 1\"\n       [attr.aria-setsize]=\"_tabs.length\"\n       [attr.aria-controls]=\"_getTabContentId(i)\"\n       [attr.aria-selected]=\"selectedIndex == i\"\n       [attr.aria-label]=\"tab.ariaLabel || null\"\n       [attr.aria-labelledby]=\"(!tab.ariaLabel && tab.ariaLabelledby) ? tab.ariaLabelledby : null\"\n       [class.mat-tab-label-active]=\"selectedIndex == i\"\n       [disabled]=\"tab.disabled\"\n       [matRippleDisabled]=\"tab.disabled || disableRipple\"\n       (click)=\"_handleClick(tab, tabHeader, i)\">\n\n\n    <div class=\"mat-tab-label-content\">\n      <!-- If there is a label template, use it. -->\n      <ng-template [ngIf]=\"tab.templateLabel\">\n        <ng-template [cdkPortalOutlet]=\"tab.templateLabel\"></ng-template>\n      </ng-template>\n\n      <!-- If there is not a label template, fall back to the text label. -->\n      <ng-template [ngIf]=\"!tab.templateLabel\">{{tab.textLabel}}</ng-template>\n    </div>\n  </div>\n</mat-tab-header>\n\n<div\n  class=\"mat-tab-body-wrapper\"\n  [class._mat-animation-noopable]=\"_animationMode === 'NoopAnimations'\"\n  #tabBodyWrapper>\n  <mat-tab-body role=\"tabpanel\"\n               *ngFor=\"let tab of _tabs; let i = index\"\n               [id]=\"_getTabContentId(i)\"\n               [attr.aria-labelledby]=\"_getTabLabelId(i)\"\n               [class.mat-tab-body-active]=\"selectedIndex == i\"\n               [content]=\"tab.content!\"\n               [position]=\"tab.position!\"\n               [origin]=\"tab.origi