VLEX/BPM-UI/node_modules/@angular/material/esm5/progress-spinner.es5.js

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { __extends } from 'tslib';
import { coerceNumberProperty } from '@angular/cdk/coercion';
import { Platform } from '@angular/cdk/platform';
import { DOCUMENT, CommonModule } from '@angular/common';
import { ChangeDetectionStrategy, Component, ElementRef, Inject, InjectionToken, Input, Optional, ViewEncapsulation, NgModule } from '@angular/core';
import { mixinColor, MatCommonModule } from '@angular/material/core';
import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Base reference size of the spinner.
 * \@docs-private
 * @type {?}
 */
var BASE_SIZE = 100;
/**
 * Base reference stroke width of the spinner.
 * \@docs-private
 * @type {?}
 */
var BASE_STROKE_WIDTH = 10;
// Boilerplate for applying mixins to MatProgressSpinner.
/**
 * \@docs-private
 */
var 
// Boilerplate for applying mixins to MatProgressSpinner.
/**
 * \@docs-private
 */
MatProgressSpinnerBase = /** @class */ (function () {
    function MatProgressSpinnerBase(_elementRef) {
        this._elementRef = _elementRef;
    }
    return MatProgressSpinnerBase;
}());
/** @type {?} */
var _MatProgressSpinnerMixinBase = mixinColor(MatProgressSpinnerBase, 'primary');
/**
 * Injection token to be used to override the default options for `mat-progress-spinner`.
 * @type {?}
 */
var MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS = new InjectionToken('mat-progress-spinner-default-options', {
    providedIn: 'root',
    factory: MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY,
});
/**
 * \@docs-private
 * @return {?}
 */
function MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY() {
    return { diameter: BASE_SIZE };
}
// .0001 percentage difference is necessary in order to avoid unwanted animation frames
// for example because the animation duration is 4 seconds, .1% accounts to 4ms
// which are enough to see the flicker described in
// https://github.com/angular/components/issues/8984
/** @type {?} */
var INDETERMINATE_ANIMATION_TEMPLATE = "\n @keyframes mat-progress-spinner-stroke-rotate-DIAMETER {\n    0%      { stroke-dashoffset: START_VALUE;  transform: rotate(0); }\n    12.5%   { stroke-dashoffset: END_VALUE;    transform: rotate(0); }\n    12.5001%  { stroke-dashoffset: END_VALUE;    transform: rotateX(180deg) rotate(72.5deg); }\n    25%     { stroke-dashoffset: START_VALUE;  transform: rotateX(180deg) rotate(72.5deg); }\n\n    25.0001%   { stroke-dashoffset: START_VALUE;  transform: rotate(270deg); }\n    37.5%   { stroke-dashoffset: END_VALUE;    transform: rotate(270deg); }\n    37.5001%  { stroke-dashoffset: END_VALUE;    transform: rotateX(180deg) rotate(161.5deg); }\n    50%     { stroke-dashoffset: START_VALUE;  transform: rotateX(180deg) rotate(161.5deg); }\n\n    50.0001%  { stroke-dashoffset: START_VALUE;  transform: rotate(180deg); }\n    62.5%   { stroke-dashoffset: END_VALUE;    transform: rotate(180deg); }\n    62.5001%  { stroke-dashoffset: END_VALUE;    transform: rotateX(180deg) rotate(251.5deg); }\n    75%     { stroke-dashoffset: START_VALUE;  transform: rotateX(180deg) rotate(251.5deg); }\n\n    75.0001%  { stroke-dashoffset: START_VALUE;  transform: rotate(90deg); }\n    87.5%   { stroke-dashoffset: END_VALUE;    transform: rotate(90deg); }\n    87.5001%  { stroke-dashoffset: END_VALUE;    transform: rotateX(180deg) rotate(341.5deg); }\n    100%    { stroke-dashoffset: START_VALUE;  transform: rotateX(180deg) rotate(341.5deg); }\n  }\n";
/**
 * `<mat-progress-spinner>` component.
 */
var MatProgressSpinner = /** @class */ (function (_super) {
    __extends(MatProgressSpinner, _super);
    function MatProgressSpinner(_elementRef, platform, _document, animationMode, defaults) {
        var _this = _super.call(this, _elementRef) || this;
        _this._elementRef = _elementRef;
        _this._document = _document;
        _this._diameter = BASE_SIZE;
        _this._value = 0;
        _this._fallbackAnimation = false;
        /**
         * Mode of the progress circle
         */
        _this.mode = 'determinate';
        /** @type {?} */
        var trackedDiameters = MatProgressSpinner._diameters;
        // The base size is already inserted via the component's structural styles. We still
        // need to track it so we don't end up adding the same styles again.
        if (!trackedDiameters.has(_document.head)) {
            trackedDiameters.set(_document.head, new Set([BASE_SIZE]));
        }
        _this._styleRoot = _getShadowRoot(_elementRef.nativeElement, _document) || _document.head;
        _this._fallbackAnimation = platform.EDGE || platform.TRIDENT;
        _this._noopAnimations = animationMode === 'NoopAnimations' &&
            (!!defaults && !defaults._forceAnimations);
        if (defaults) {
            if (defaults.diameter) {
                _this.diameter = defaults.diameter;
            }
            if (defaults.strokeWidth) {
                _this.strokeWidth = defaults.strokeWidth;
            }
        }
        // On IE and Edge, we can't animate the `stroke-dashoffset`
        // reliably so we fall back to a non-spec animation.
        /** @type {?} */
        var animationClass = "mat-progress-spinner-indeterminate" + (_this._fallbackAnimation ? '-fallback' : '') + "-animation";
        _elementRef.nativeElement.classList.add(animationClass);
        return _this;
    }
    Object.defineProperty(MatProgressSpinner.prototype, "diameter", {
        /** The diameter of the progress spinner (will set width and height of svg). */
        get: /**
         * The diameter of the progress spinner (will set width and height of svg).
         * @return {?}
         */
        function () { return this._diameter; },
        set: /**
         * @param {?} size
         * @return {?}
         */
        function (size) {
            this._diameter = coerceNumberProperty(size);
            if (!this._fallbackAnimation) {
                /** @type {?} */
                var trackedDiameters = MatProgressSpinner._diameters;
                /** @type {?} */
                var diametersForElement = trackedDiameters.get(this._styleRoot);
                if (!diametersForElement || !diametersForElement.has(this._diameter)) {
                    this._attachStyleNode();
                }
            }
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(MatProgressSpinner.prototype, "strokeWidth", {
        /** Stroke width of the progress spinner. */
        get: /**
         * Stroke width of the progress spinner.
         * @return {?}
         */
        function () {
            return this._strokeWidth || this.diameter / 10;
        },
        set: /**
         * @param {?} value
         * @return {?}
         */
        function (value) {
            this._strokeWidth = coerceNumberProperty(value);
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(MatProgressSpinner.prototype, "value", {
        /** Value of the progress circle. */
        get: /**
         * Value of the progress circle.
         * @return {?}
         */
        function () {
            return this.mode === 'determinate' ? this._value : 0;
        },
        set: /**
         * @param {?} newValue
         * @return {?}
         */
        function (newValue) {
            this._value = Math.max(0, Math.min(100, coerceNumberProperty(newValue)));
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(MatProgressSpinner.prototype, "_circleRadius", {
        /** The radius of the spinner, adjusted for stroke width. */
        get: /**
         * The radius of the spinner, adjusted for stroke width.
         * @return {?}
         */
        function () {
            return (this.diameter - BASE_STROKE_WIDTH) / 2;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(MatProgressSpinner.prototype, "_viewBox", {
        /** The view box of the spinner's svg element. */
        get: /**
         * The view box of the spinner's svg element.
         * @return {?}
         */
        function () {
            /** @type {?} */
            var viewBox = this._circleRadius * 2 + this.strokeWidth;
            return "0 0 " + viewBox + " " + viewBox;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(MatProgressSpinner.prototype, "_strokeCircumference", {
        /** The stroke circumference of the svg circle. */
        get: /**
         * The stroke circumference of the svg circle.
         * @return {?}
         */
        function () {
            return 2 * Math.PI * this._circleRadius;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(MatProgressSpinner.prototype, "_strokeDashOffset", {
        /** The dash offset of the svg circle. */
        get: /**
         * The dash offset of the svg circle.
         * @return {?}
         */
        function () {
            if (this.mode === 'determinate') {
                return this._strokeCircumference * (100 - this._value) / 100;
            }
            // In fallback mode set the circle to 80% and rotate it with CSS.
            if (this._fallbackAnimation && this.mode === 'indeterminate') {
                return this._strokeCircumference * 0.2;
            }
            return null;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(MatProgressSpinner.prototype, "_circleStrokeWidth", {
        /** Stroke width of the circle in percent. */
        get: /**
         * Stroke width of the circle in percent.
         * @return {?}
         */
        function () {
            return this.strokeWidth / this.diameter * 100;
        },
        enumerable: true,
        configurable: true
    });
    /** Dynamically generates a style tag containing the correct animation for this diameter. */
    /**
     * Dynamically generates a style tag containing the correct animation for this diameter.
     * @private
     * @return {?}
     */
    MatProgressSpinner.prototype._attachStyleNode = /**
     * Dynamically generates a style tag containing the correct animation for this diameter.
     * @private
     * @return {?}
     */
    function () {
        /** @type {?} */
        var styleTag = this._document.createElement('style');
        /** @type {?} */
        var styleRoot = this._styleRoot;
        /** @type {?} */
        var currentDiameter = this._diameter;
        /** @type {?} */
        var diameters = MatProgressSpinner._diameters;
        /** @type {?} */
        var diametersForElement = diameters.get(styleRoot);
        styleTag.setAttribute('mat-spinner-animation', currentDiameter + '');
        styleTag.textContent = this._getAnimationText();
        styleRoot.appendChild(styleTag);
        if (!diametersForElement) {
            diametersForElement = new Set();
            diameters.set(styleRoot, diametersForElement);
        }
        diametersForElement.add(currentDiameter);
    };
    /** Generates animation styles adjusted for the spinner's diameter. */
    /**
     * Generates animation styles adjusted for the spinner's diameter.
     * @private
     * @return {?}
     */
    MatProgressSpinner.prototype._getAnimationText = /**
     * Generates animation styles adjusted for the spinner's diameter.
     * @private
     * @return {?}
     */
    function () {
        return INDETERMINATE_ANIMATION_TEMPLATE
            // Animation should begin at 5% and end at 80%
            .replace(/START_VALUE/g, "" + 0.95 * this._strokeCircumference)
            .replace(/END_VALUE/g, "" + 0.2 * this._strokeCircumference)
            .replace(/DIAMETER/g, "" + this.diameter);
    };
    /**
     * Tracks diameters of existing instances to de-dupe generated styles (default d = 100).
     * We need to keep track of which elements the diameters were attached to, because for
     * elements in the Shadow DOM the style tags are attached to the shadow root, rather
     * than the document head.
     */
    MatProgressSpinner._diameters = new WeakMap();
    MatProgressSpinner.decorators = [
        { type: Component, args: [{selector: 'mat-progress-spinner',
                    exportAs: 'matProgressSpinner',
                    host: {
                        'role': 'progressbar',
                        'class': 'mat-progress-spinner',
                        '[class._mat-animation-noopable]': "_noopAnimations",
                        '[style.width.px]': 'diameter',
                        '[style.height.px]': 'diameter',
                        '[attr.aria-valuemin]': 'mode === "determinate" ? 0 : null',
                        '[attr.aria-valuemax]': 'mode === "determinate" ? 100 : null',
                        '[attr.aria-valuenow]': 'mode === "determinate" ? value : null',
                        '[attr.mode]': 'mode',
                    },
                    inputs: ['color'],
                    template: "<svg [style.width.px]=\"diameter\" [style.height.px]=\"diameter\" [attr.viewBox]=\"_viewBox\" preserveAspectRatio=\"xMidYMid meet\" focusable=\"false\" [ngSwitch]=\"mode === 'indeterminate'\"><circle *ngSwitchCase=\"true\" cx=\"50%\" cy=\"50%\" [attr.r]=\"_circleRadius\" [style.animation-name]=\"'mat-progress-spinner-stroke-rotate-' + diameter\" [style.stroke-dashoffset.px]=\"_strokeDashOffset\" [style.stroke-dasharray.px]=\"_strokeCircumference\" [style.stroke-width.%]=\"_circleStrokeWidth\"></circle><circle *ngSwitchCase=\"false\" cx=\"50%\" cy=\"50%\" [attr.r]=\"_circleRadius\" [style.stroke-dashoffset.px]=\"_strokeDashOffset\" [style.stroke-dasharray.px]=\"_strokeCircumference\" [style.stroke-width.%]=\"_circleStrokeWidth\"></circle></svg>",
                    styles: [".mat-progress-spinner{display:block;position:relative}.mat-progress-spinner svg{position:absolute;transform:rotate(-90deg);top:0;left:0;transform-origin:center;overflow:visible}.mat-progress-spinner circle{fill:transparent;transform-origin:center;transition:stroke-dashoffset 225ms linear}._mat-animation-noopable.mat-progress-spinner circle{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate]{animation:mat-progress-spinner-linear-rotate 2s linear infinite}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate]{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate] circle{transition-property:stroke;animation-duration:4s;animation-timing-function:cubic-bezier(.35,0,.25,1);animation-iteration-count:infinite}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate] circle{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate]{animation:mat-progress-spinner-stroke-rotate-fallback 10s cubic-bezier(.87,.03,.33,1) infinite}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate]{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate] circle{transition-property:stroke}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate] circle{transition:none;animation:none}@keyframes mat-progress-spinner-linear-rotate{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}@keyframes mat-progress-spinner-stroke-rotate-100{0%{stroke-dashoffset:268.60617px;transform:rotate(0)}12.5%{stroke-dashoffset:56.54867px;transform:rotate(0)}12.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(72.5deg)}25%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(72.5deg)}25.0001%{stroke-dashoffset:268.60617px;transform:rotate(270deg)}37.5%{stroke-dashoffset:56.54867px;transform:rotate(270deg)}37.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(161.5deg)}50%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(161.5deg)}50.0001%{stroke-dashoffset:268.60617px;transform:rotate(180deg)}62.5%{stroke-dashoffset:56.54867px;transform:rotate(180deg)}62.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(251.5deg)}75%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(251.5deg)}75.0001%{stroke-dashoffset:268.60617px;transform:rotate(90deg)}87.5%{stroke-dashoffset:56.54867px;transform:rotate(90deg)}87.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(341.5deg)}100%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(341.5deg)}}@keyframes mat-progress-spinner-stroke-rotate-fallback{0%{transform:rotate(0)}25%{transform:rotate(1170deg)}50%{transform:rotate(2340deg)}75%{transform:rotate(3510deg)}100%{transform:rotate(4680deg)}}"],
                    changeDetection: ChangeDetectionStrategy.OnPush,
                    encapsulation: ViewEncapsulation.None,
                },] },
    ];
    /** @nocollapse */
    MatProgressSpinner.ctorParameters = function () { return [
        { type: ElementRef },
        { type: Platform },
        { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },
        { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] },
        { type: undefined, decorators: [{ type: Inject, args: [MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS,] }] }
    ]; };
    MatProgressSpinner.propDecorators = {
        diameter: [{ type: Input }],
        strokeWidth: [{ type: Input }],
        mode: [{ type: Input }],
        value: [{ type: Input }]
    };
    return MatProgressSpinner;
}(_MatProgressSpinnerMixinBase));
/**
 * `<mat-spinner>` component.
 *
 * This is a component definition to be used as a convenience reference to create an
 * indeterminate `<mat-progress-spinner>` instance.
 */
var MatSpinner = /** @class */ (function (_super) {
    __extends(MatSpinner, _super);
    function MatSpinner(elementRef, platform, document, animationMode, defaults) {
        var _this = _super.call(this, elementRef, platform, document, animationMode, defaults) || this;
        _this.mode = 'indeterminate';
        return _this;
    }
    MatSpinner.decorators = [
        { type: Component, args: [{selector: 'mat-spinner',
                    host: {
                        'role': 'progressbar',
                        'mode': 'indeterminate',
                        'class': 'mat-spinner mat-progress-spinner',
                        '[class._mat-animation-noopable]': "_noopAnimations",
                        '[style.width.px]': 'diameter',
                        '[style.height.px]': 'diameter',
                    },
                    inputs: ['color'],
                    template: "<svg [style.width.px]=\"diameter\" [style.height.px]=\"diameter\" [attr.viewBox]=\"_viewBox\" preserveAspectRatio=\"xMidYMid meet\" focusable=\"false\" [ngSwitch]=\"mode === 'indeterminate'\"><circle *ngSwitchCase=\"true\" cx=\"50%\" cy=\"50%\" [attr.r]=\"_circleRadius\" [style.animation-name]=\"'mat-progress-spinner-stroke-rotate-' + diameter\" [style.stroke-dashoffset.px]=\"_strokeDashOffset\" [style.stroke-dasharray.px]=\"_strokeCircumference\" [style.stroke-width.%]=\"_circleStrokeWidth\"></circle><circle *ngSwitchCase=\"false\" cx=\"50%\" cy=\"50%\" [attr.r]=\"_circleRadius\" [style.stroke-dashoffset.px]=\"_strokeDashOffset\" [style.stroke-dasharray.px]=\"_strokeCircumference\" [style.stroke-width.%]=\"_circleStrokeWidth\"></circle></svg>",
                    styles: [".mat-progress-spinner{display:block;position:relative}.mat-progress-spinner svg{position:absolute;transform:rotate(-90deg);top:0;left:0;transform-origin:center;overflow:visible}.mat-progress-spinner circle{fill:transparent;transform-origin:center;transition:stroke-dashoffset 225ms linear}._mat-animation-noopable.mat-progress-spinner circle{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate]{animation:mat-progress-spinner-linear-rotate 2s linear infinite}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate]{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate] circle{transition-property:stroke;animation-duration:4s;animation-timing-function:cubic-bezier(.35,0,.25,1);animation-iteration-count:infinite}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-animation[mode=indeterminate] circle{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate]{animation:mat-progress-spinner-stroke-rotate-fallback 10s cubic-bezier(.87,.03,.33,1) infinite}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate]{transition:none;animation:none}.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate] circle{transition-property:stroke}._mat-animation-noopable.mat-progress-spinner.mat-progress-spinner-indeterminate-fallback-animation[mode=indeterminate] circle{transition:none;animation:none}@keyframes mat-progress-spinner-linear-rotate{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}@keyframes mat-progress-spinner-stroke-rotate-100{0%{stroke-dashoffset:268.60617px;transform:rotate(0)}12.5%{stroke-dashoffset:56.54867px;transform:rotate(0)}12.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(72.5deg)}25%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(72.5deg)}25.0001%{stroke-dashoffset:268.60617px;transform:rotate(270deg)}37.5%{stroke-dashoffset:56.54867px;transform:rotate(270deg)}37.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(161.5deg)}50%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(161.5deg)}50.0001%{stroke-dashoffset:268.60617px;transform:rotate(180deg)}62.5%{stroke-dashoffset:56.54867px;transform:rotate(180deg)}62.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(251.5deg)}75%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(251.5deg)}75.0001%{stroke-dashoffset:268.60617px;transform:rotate(90deg)}87.5%{stroke-dashoffset:56.54867px;transform:rotate(90deg)}87.5001%{stroke-dashoffset:56.54867px;transform:rotateX(180deg) rotate(341.5deg)}100%{stroke-dashoffset:268.60617px;transform:rotateX(180deg) rotate(341.5deg)}}@keyframes mat-progress-spinner-stroke-rotate-fallback{0%{transform:rotate(0)}25%{transform:rotate(1170deg)}50%{transform:rotate(2340deg)}75%{transform:rotate(3510deg)}100%{transform:rotate(4680deg)}}"],
                    changeDetection: ChangeDetectionStrategy.OnPush,
                    encapsulation: ViewEncapsulation.None,
                },] },
    ];
    /** @nocollapse */
    MatSpinner.ctorParameters = function () { return [
        { type: ElementRef },
        { type: Platform },
        { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },
        { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] },
        { type: undefined, decorators: [{ type: Inject, args: [MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS,] }] }
    ]; };
    return MatSpinner;
}(MatProgressSpinner));
/**
 * Gets the shadow root of an element, if supported and the element is inside the Shadow DOM.
 * @param {?} element
 * @param {?} _document
 * @return {?}
 */
function _getShadowRoot(element, _document) {
    // TODO(crisbeto): see whether we should move this into the CDK
    // feature detection utilities once #15616 gets merged in.
    if (typeof window !== 'undefined') {
        /** @type {?} */
        var head = _document.head;
        // Check whether the browser supports Shadow DOM.
        if (head && (((/** @type {?} */ (head))).createShadowRoot || head.attachShadow)) {
            /** @type {?} */
            var rootNode = element.getRootNode ? element.getRootNode() : null;
            // We need to take the `ShadowRoot` off of `window`, because the built-in types are
            // incorrect. See https://github.com/Microsoft/TypeScript/issues/27929.
            if (rootNode instanceof ((/** @type {?} */ (window))).ShadowRoot) {
                return rootNode;
            }
        }
    }
    return null;
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
var MatProgressSpinnerModule = /** @class */ (function () {
    function MatProgressSpinnerModule() {
    }
    MatProgressSpinnerModule.decorators = [
        { type: NgModule, args: [{
                    imports: [MatCommonModule, CommonModule],
                    exports: [
                        MatProgressSpinner,
                        MatSpinner,
                        MatCommonModule
                    ],
                    declarations: [
                        MatProgressSpinner,
                        MatSpinner
                    ],
                },] },
    ];
    return MatProgressSpinnerModule;
}());

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

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

export { MatProgressSpinner, MatSpinner, MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS, MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY, MatProgressSpinnerModule };
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