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1/**
2 * @license
3 * Copyright Google LLC All Rights Reserved.
4 *
5 * Use of this source code is governed by an MIT-style license that can be
6 * found in the LICENSE file at https://angular.io/license
7 */
8import { coerceNumberProperty } from '@angular/cdk/coercion';
9import { Platform, _getShadowRoot } from '@angular/cdk/platform';
10import { ViewportRuler } from '@angular/cdk/scrolling';
11import { DOCUMENT } from '@angular/common';
12import { ChangeDetectionStrategy, Component, ElementRef, Inject, InjectionToken, Input, Optional, ViewEncapsulation, ChangeDetectorRef, NgZone, } from '@angular/core';
13import { mixinColor } from '@angular/material/core';
14import { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';
15import { Subscription } from 'rxjs';
16import * as i0 from "@angular/core";
17import * as i1 from "@angular/cdk/platform";
18import * as i2 from "@angular/cdk/scrolling";
19import * as i3 from "@angular/common";
20/**
21 * Base reference size of the spinner.
22 * @docs-private
23 */
24const BASE_SIZE = 100;
25/**
26 * Base reference stroke width of the spinner.
27 * @docs-private
28 */
29const BASE_STROKE_WIDTH = 10;
30// Boilerplate for applying mixins to MatProgressSpinner.
31/** @docs-private */
32const _MatProgressSpinnerBase = mixinColor(class {
33 constructor(_elementRef) {
34 this._elementRef = _elementRef;
35 }
36}, 'primary');
37/** Injection token to be used to override the default options for `mat-progress-spinner`. */
38export const MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS = new InjectionToken('mat-progress-spinner-default-options', {
39 providedIn: 'root',
40 factory: MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY,
41});
42/** @docs-private */
43export function MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY() {
44 return { diameter: BASE_SIZE };
45}
46// .0001 percentage difference is necessary in order to avoid unwanted animation frames
47// for example because the animation duration is 4 seconds, .1% accounts to 4ms
48// which are enough to see the flicker described in
49// https://github.com/angular/components/issues/8984
50const INDETERMINATE_ANIMATION_TEMPLATE = `
51 @keyframes mat-progress-spinner-stroke-rotate-DIAMETER {
52 0% { stroke-dashoffset: START_VALUE; transform: rotate(0); }
53 12.5% { stroke-dashoffset: END_VALUE; transform: rotate(0); }
54 12.5001% { stroke-dashoffset: END_VALUE; transform: rotateX(180deg) rotate(72.5deg); }
55 25% { stroke-dashoffset: START_VALUE; transform: rotateX(180deg) rotate(72.5deg); }
56
57 25.0001% { stroke-dashoffset: START_VALUE; transform: rotate(270deg); }
58 37.5% { stroke-dashoffset: END_VALUE; transform: rotate(270deg); }
59 37.5001% { stroke-dashoffset: END_VALUE; transform: rotateX(180deg) rotate(161.5deg); }
60 50% { stroke-dashoffset: START_VALUE; transform: rotateX(180deg) rotate(161.5deg); }
61
62 50.0001% { stroke-dashoffset: START_VALUE; transform: rotate(180deg); }
63 62.5% { stroke-dashoffset: END_VALUE; transform: rotate(180deg); }
64 62.5001% { stroke-dashoffset: END_VALUE; transform: rotateX(180deg) rotate(251.5deg); }
65 75% { stroke-dashoffset: START_VALUE; transform: rotateX(180deg) rotate(251.5deg); }
66
67 75.0001% { stroke-dashoffset: START_VALUE; transform: rotate(90deg); }
68 87.5% { stroke-dashoffset: END_VALUE; transform: rotate(90deg); }
69 87.5001% { stroke-dashoffset: END_VALUE; transform: rotateX(180deg) rotate(341.5deg); }
70 100% { stroke-dashoffset: START_VALUE; transform: rotateX(180deg) rotate(341.5deg); }
71 }
72`;
73/**
74 * `<mat-progress-spinner>` component.
75 */
76export class MatProgressSpinner extends _MatProgressSpinnerBase {
77 constructor(elementRef, _platform, _document, animationMode, defaults,
78 /**
79 * @deprecated `changeDetectorRef`, `viewportRuler` and `ngZone`
80 * parameters to become required.
81 * @breaking-change 14.0.0
82 */
83 changeDetectorRef, viewportRuler, ngZone) {
84 super(elementRef);
85 this._document = _document;
86 this._diameter = BASE_SIZE;
87 this._value = 0;
88 this._resizeSubscription = Subscription.EMPTY;
89 /** Mode of the progress circle */
90 this.mode = 'determinate';
91 const trackedDiameters = MatProgressSpinner._diameters;
92 this._spinnerAnimationLabel = this._getSpinnerAnimationLabel();
93 // The base size is already inserted via the component's structural styles. We still
94 // need to track it so we don't end up adding the same styles again.
95 if (!trackedDiameters.has(_document.head)) {
96 trackedDiameters.set(_document.head, new Set([BASE_SIZE]));
97 }
98 this._noopAnimations =
99 animationMode === 'NoopAnimations' && !!defaults && !defaults._forceAnimations;
100 if (elementRef.nativeElement.nodeName.toLowerCase() === 'mat-spinner') {
101 this.mode = 'indeterminate';
102 }
103 if (defaults) {
104 if (defaults.color) {
105 this.color = this.defaultColor = defaults.color;
106 }
107 if (defaults.diameter) {
108 this.diameter = defaults.diameter;
109 }
110 if (defaults.strokeWidth) {
111 this.strokeWidth = defaults.strokeWidth;
112 }
113 }
114 // Safari has an issue where the circle isn't positioned correctly when the page has a
115 // different zoom level from the default. This handler triggers a recalculation of the
116 // `transform-origin` when the page zoom level changes.
117 // See `_getCircleTransformOrigin` for more info.
118 // @breaking-change 14.0.0 Remove null checks for `_changeDetectorRef`,
119 // `viewportRuler` and `ngZone`.
120 if (_platform.isBrowser && _platform.SAFARI && viewportRuler && changeDetectorRef && ngZone) {
121 this._resizeSubscription = viewportRuler.change(150).subscribe(() => {
122 // When the window is resize while the spinner is in `indeterminate` mode, we
123 // have to mark for check so the transform origin of the circle can be recomputed.
124 if (this.mode === 'indeterminate') {
125 ngZone.run(() => changeDetectorRef.markForCheck());
126 }
127 });
128 }
129 }
130 /** The diameter of the progress spinner (will set width and height of svg). */
131 get diameter() {
132 return this._diameter;
133 }
134 set diameter(size) {
135 this._diameter = coerceNumberProperty(size);
136 this._spinnerAnimationLabel = this._getSpinnerAnimationLabel();
137 // If this is set before `ngOnInit`, the style root may not have been resolved yet.
138 if (this._styleRoot) {
139 this._attachStyleNode();
140 }
141 }
142 /** Stroke width of the progress spinner. */
143 get strokeWidth() {
144 return this._strokeWidth || this.diameter / 10;
145 }
146 set strokeWidth(value) {
147 this._strokeWidth = coerceNumberProperty(value);
148 }
149 /** Value of the progress circle. */
150 get value() {
151 return this.mode === 'determinate' ? this._value : 0;
152 }
153 set value(newValue) {
154 this._value = Math.max(0, Math.min(100, coerceNumberProperty(newValue)));
155 }
156 ngOnInit() {
157 const element = this._elementRef.nativeElement;
158 // Note that we need to look up the root node in ngOnInit, rather than the constructor, because
159 // Angular seems to create the element outside the shadow root and then moves it inside, if the
160 // node is inside an `ngIf` and a ShadowDom-encapsulated component.
161 this._styleRoot = _getShadowRoot(element) || this._document.head;
162 this._attachStyleNode();
163 element.classList.add('mat-progress-spinner-indeterminate-animation');
164 }
165 ngOnDestroy() {
166 this._resizeSubscription.unsubscribe();
167 }
168 /** The radius of the spinner, adjusted for stroke width. */
169 _getCircleRadius() {
170 return (this.diameter - BASE_STROKE_WIDTH) / 2;
171 }
172 /** The view box of the spinner's svg element. */
173 _getViewBox() {
174 const viewBox = this._getCircleRadius() * 2 + this.strokeWidth;
175 return `0 0 ${viewBox} ${viewBox}`;
176 }
177 /** The stroke circumference of the svg circle. */
178 _getStrokeCircumference() {
179 return 2 * Math.PI * this._getCircleRadius();
180 }
181 /** The dash offset of the svg circle. */
182 _getStrokeDashOffset() {
183 if (this.mode === 'determinate') {
184 return (this._getStrokeCircumference() * (100 - this._value)) / 100;
185 }
186 return null;
187 }
188 /** Stroke width of the circle in percent. */
189 _getCircleStrokeWidth() {
190 return (this.strokeWidth / this.diameter) * 100;
191 }
192 /** Gets the `transform-origin` for the inner circle element. */
193 _getCircleTransformOrigin(svg) {
194 // Safari has an issue where the `transform-origin` doesn't work as expected when the page
195 // has a different zoom level from the default. The problem appears to be that a zoom
196 // is applied on the `svg` node itself. We can work around it by calculating the origin
197 // based on the zoom level. On all other browsers the `currentScale` appears to always be 1.
198 const scale = (svg.currentScale ?? 1) * 50;
199 return `${scale}% ${scale}%`;
200 }
201 /** Dynamically generates a style tag containing the correct animation for this diameter. */
202 _attachStyleNode() {
203 const styleRoot = this._styleRoot;
204 const currentDiameter = this._diameter;
205 const diameters = MatProgressSpinner._diameters;
206 let diametersForElement = diameters.get(styleRoot);
207 if (!diametersForElement || !diametersForElement.has(currentDiameter)) {
208 const styleTag = this._document.createElement('style');
209 styleTag.setAttribute('mat-spinner-animation', this._spinnerAnimationLabel);
210 styleTag.textContent = this._getAnimationText();
211 styleRoot.appendChild(styleTag);
212 if (!diametersForElement) {
213 diametersForElement = new Set();
214 diameters.set(styleRoot, diametersForElement);
215 }
216 diametersForElement.add(currentDiameter);
217 }
218 }
219 /** Generates animation styles adjusted for the spinner's diameter. */
220 _getAnimationText() {
221 const strokeCircumference = this._getStrokeCircumference();
222 return (INDETERMINATE_ANIMATION_TEMPLATE
223 // Animation should begin at 5% and end at 80%
224 .replace(/START_VALUE/g, `${0.95 * strokeCircumference}`)
225 .replace(/END_VALUE/g, `${0.2 * strokeCircumference}`)
226 .replace(/DIAMETER/g, `${this._spinnerAnimationLabel}`));
227 }
228 /** Returns the circle diameter formatted for use with the animation-name CSS property. */
229 _getSpinnerAnimationLabel() {
230 // The string of a float point number will include a period ‘.’ character,
231 // which is not valid for a CSS animation-name.
232 return this.diameter.toString().replace('.', '_');
233 }
234}
235/**
236 * Tracks diameters of existing instances to de-dupe generated styles (default d = 100).
237 * We need to keep track of which elements the diameters were attached to, because for
238 * elements in the Shadow DOM the style tags are attached to the shadow root, rather
239 * than the document head.
240 */
241MatProgressSpinner._diameters = new WeakMap();
242MatProgressSpinner.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.0.1", ngImport: i0, type: MatProgressSpinner, deps: [{ token: i0.ElementRef }, { token: i1.Platform }, { token: DOCUMENT, optional: true }, { token: ANIMATION_MODULE_TYPE, optional: true }, { token: MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS }, { token: i0.ChangeDetectorRef }, { token: i2.ViewportRuler }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Component });
243MatProgressSpinner.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "14.0.1", type: MatProgressSpinner, selector: "mat-progress-spinner, mat-spinner", inputs: { color: "color", diameter: "diameter", strokeWidth: "strokeWidth", mode: "mode", value: "value" }, host: { attributes: { "role": "progressbar", "tabindex": "-1" }, properties: { "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" }, classAttribute: "mat-progress-spinner mat-spinner" }, exportAs: ["matProgressSpinner"], usesInheritance: true, ngImport: i0, template: "<!--\n preserveAspectRatio of xMidYMid meet as the center of the viewport is the circle's\n center. The center of the circle will remain at the center of the mat-progress-spinner\n element containing the SVG.\n-->\n<!--\n All children need to be hidden for screen readers in order to support ChromeVox.\n More context in the issue: https://github.com/angular/components/issues/22165.\n-->\n<svg\n [style.width.px]=\"diameter\"\n [style.height.px]=\"diameter\"\n [attr.viewBox]=\"_getViewBox()\"\n preserveAspectRatio=\"xMidYMid meet\"\n focusable=\"false\"\n [ngSwitch]=\"mode === 'indeterminate'\"\n aria-hidden=\"true\"\n #svg>\n\n <!--\n Technically we can reuse the same `circle` element, however Safari has an issue that breaks\n the SVG rendering in determinate mode, after switching between indeterminate and determinate.\n Using a different element avoids the issue. An alternative to this is adding `display: none`\n for a split second and then removing it when switching between modes, but it's hard to know\n for how long to hide the element and it can cause the UI to blink.\n -->\n <circle\n *ngSwitchCase=\"true\"\n cx=\"50%\"\n cy=\"50%\"\n [attr.r]=\"_getCircleRadius()\"\n [style.animation-name]=\"'mat-progress-spinner-stroke-rotate-' + _spinnerAnimationLabel\"\n [style.stroke-dashoffset.px]=\"_getStrokeDashOffset()\"\n [style.stroke-dasharray.px]=\"_getStrokeCircumference()\"\n [style.stroke-width.%]=\"_getCircleStrokeWidth()\"\n [style.transform-origin]=\"_getCircleTransformOrigin(svg)\"></circle>\n\n <circle\n *ngSwitchCase=\"false\"\n cx=\"50%\"\n cy=\"50%\"\n [attr.r]=\"_getCircleRadius()\"\n [style.stroke-dashoffset.px]=\"_getStrokeDashOffset()\"\n [style.stroke-dasharray.px]=\"_getStrokeCircumference()\"\n [style.stroke-width.%]=\"_getCircleStrokeWidth()\"\n [style.transform-origin]=\"_getCircleTransformOrigin(svg)\"></circle>\n</svg>\n", styles: [".mat-progress-spinner{display:block;position:relative;overflow:hidden}.mat-progress-spinner svg{position:absolute;transform:rotate(-90deg);top:0;left:0;transform-origin:center;overflow:visible}.mat-progress-spinner circle{fill:rgba(0,0,0,0);transition:stroke-dashoffset 225ms linear}.cdk-high-contrast-active .mat-progress-spinner circle{stroke:CanvasText}.mat-progress-spinner[mode=indeterminate] svg{animation:mat-progress-spinner-linear-rotate 2000ms linear infinite}.mat-progress-spinner[mode=indeterminate] circle{transition-property:stroke;animation-duration:4000ms;animation-timing-function:cubic-bezier(0.35, 0, 0.25, 1);animation-iteration-count:infinite}.mat-progress-spinner._mat-animation-noopable svg,.mat-progress-spinner._mat-animation-noopable circle{animation:none;transition:none}@keyframes mat-progress-spinner-linear-rotate{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}@keyframes mat-progress-spinner-stroke-rotate-100{0%{stroke-dashoffset:268.606171575px;transform:rotate(0)}12.5%{stroke-dashoffset:56.5486677px;transform:rotate(0)}12.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(72.5deg)}25%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(72.5deg)}25.0001%{stroke-dashoffset:268.606171575px;transform:rotate(270deg)}37.5%{stroke-dashoffset:56.5486677px;transform:rotate(270deg)}37.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(161.5deg)}50%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(161.5deg)}50.0001%{stroke-dashoffset:268.606171575px;transform:rotate(180deg)}62.5%{stroke-dashoffset:56.5486677px;transform:rotate(180deg)}62.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(251.5deg)}75%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(251.5deg)}75.0001%{stroke-dashoffset:268.606171575px;transform:rotate(90deg)}87.5%{stroke-dashoffset:56.5486677px;transform:rotate(90deg)}87.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(341.5deg)}100%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(341.5deg)}}"], dependencies: [{ kind: "directive", type: i3.NgSwitch, selector: "[ngSwitch]", inputs: ["ngSwitch"] }, { kind: "directive", type: i3.NgSwitchCase, selector: "[ngSwitchCase]", inputs: ["ngSwitchCase"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush, encapsulation: i0.ViewEncapsulation.None });
244i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.0.1", ngImport: i0, type: MatProgressSpinner, decorators: [{
245 type: Component,
246 args: [{ selector: 'mat-progress-spinner, mat-spinner', exportAs: 'matProgressSpinner', host: {
247 'role': 'progressbar',
248 // `mat-spinner` is here for backward compatibility.
249 'class': 'mat-progress-spinner mat-spinner',
250 // set tab index to -1 so screen readers will read the aria-label
251 // Note: there is a known issue with JAWS that does not read progressbar aria labels on FireFox
252 'tabindex': '-1',
253 '[class._mat-animation-noopable]': `_noopAnimations`,
254 '[style.width.px]': 'diameter',
255 '[style.height.px]': 'diameter',
256 '[attr.aria-valuemin]': 'mode === "determinate" ? 0 : null',
257 '[attr.aria-valuemax]': 'mode === "determinate" ? 100 : null',
258 '[attr.aria-valuenow]': 'mode === "determinate" ? value : null',
259 '[attr.mode]': 'mode',
260 }, inputs: ['color'], changeDetection: ChangeDetectionStrategy.OnPush, encapsulation: ViewEncapsulation.None, template: "<!--\n preserveAspectRatio of xMidYMid meet as the center of the viewport is the circle's\n center. The center of the circle will remain at the center of the mat-progress-spinner\n element containing the SVG.\n-->\n<!--\n All children need to be hidden for screen readers in order to support ChromeVox.\n More context in the issue: https://github.com/angular/components/issues/22165.\n-->\n<svg\n [style.width.px]=\"diameter\"\n [style.height.px]=\"diameter\"\n [attr.viewBox]=\"_getViewBox()\"\n preserveAspectRatio=\"xMidYMid meet\"\n focusable=\"false\"\n [ngSwitch]=\"mode === 'indeterminate'\"\n aria-hidden=\"true\"\n #svg>\n\n <!--\n Technically we can reuse the same `circle` element, however Safari has an issue that breaks\n the SVG rendering in determinate mode, after switching between indeterminate and determinate.\n Using a different element avoids the issue. An alternative to this is adding `display: none`\n for a split second and then removing it when switching between modes, but it's hard to know\n for how long to hide the element and it can cause the UI to blink.\n -->\n <circle\n *ngSwitchCase=\"true\"\n cx=\"50%\"\n cy=\"50%\"\n [attr.r]=\"_getCircleRadius()\"\n [style.animation-name]=\"'mat-progress-spinner-stroke-rotate-' + _spinnerAnimationLabel\"\n [style.stroke-dashoffset.px]=\"_getStrokeDashOffset()\"\n [style.stroke-dasharray.px]=\"_getStrokeCircumference()\"\n [style.stroke-width.%]=\"_getCircleStrokeWidth()\"\n [style.transform-origin]=\"_getCircleTransformOrigin(svg)\"></circle>\n\n <circle\n *ngSwitchCase=\"false\"\n cx=\"50%\"\n cy=\"50%\"\n [attr.r]=\"_getCircleRadius()\"\n [style.stroke-dashoffset.px]=\"_getStrokeDashOffset()\"\n [style.stroke-dasharray.px]=\"_getStrokeCircumference()\"\n [style.stroke-width.%]=\"_getCircleStrokeWidth()\"\n [style.transform-origin]=\"_getCircleTransformOrigin(svg)\"></circle>\n</svg>\n", styles: [".mat-progress-spinner{display:block;position:relative;overflow:hidden}.mat-progress-spinner svg{position:absolute;transform:rotate(-90deg);top:0;left:0;transform-origin:center;overflow:visible}.mat-progress-spinner circle{fill:rgba(0,0,0,0);transition:stroke-dashoffset 225ms linear}.cdk-high-contrast-active .mat-progress-spinner circle{stroke:CanvasText}.mat-progress-spinner[mode=indeterminate] svg{animation:mat-progress-spinner-linear-rotate 2000ms linear infinite}.mat-progress-spinner[mode=indeterminate] circle{transition-property:stroke;animation-duration:4000ms;animation-timing-function:cubic-bezier(0.35, 0, 0.25, 1);animation-iteration-count:infinite}.mat-progress-spinner._mat-animation-noopable svg,.mat-progress-spinner._mat-animation-noopable circle{animation:none;transition:none}@keyframes mat-progress-spinner-linear-rotate{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}@keyframes mat-progress-spinner-stroke-rotate-100{0%{stroke-dashoffset:268.606171575px;transform:rotate(0)}12.5%{stroke-dashoffset:56.5486677px;transform:rotate(0)}12.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(72.5deg)}25%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(72.5deg)}25.0001%{stroke-dashoffset:268.606171575px;transform:rotate(270deg)}37.5%{stroke-dashoffset:56.5486677px;transform:rotate(270deg)}37.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(161.5deg)}50%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(161.5deg)}50.0001%{stroke-dashoffset:268.606171575px;transform:rotate(180deg)}62.5%{stroke-dashoffset:56.5486677px;transform:rotate(180deg)}62.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(251.5deg)}75%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(251.5deg)}75.0001%{stroke-dashoffset:268.606171575px;transform:rotate(90deg)}87.5%{stroke-dashoffset:56.5486677px;transform:rotate(90deg)}87.5001%{stroke-dashoffset:56.5486677px;transform:rotateX(180deg) rotate(341.5deg)}100%{stroke-dashoffset:268.606171575px;transform:rotateX(180deg) rotate(341.5deg)}}"] }]
261 }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i1.Platform }, { type: undefined, decorators: [{
262 type: Optional
263 }, {
264 type: Inject,
265 args: [DOCUMENT]
266 }] }, { type: undefined, decorators: [{
267 type: Optional
268 }, {
269 type: Inject,
270 args: [ANIMATION_MODULE_TYPE]
271 }] }, { type: undefined, decorators: [{
272 type: Inject,
273 args: [MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS]
274 }] }, { type: i0.ChangeDetectorRef }, { type: i2.ViewportRuler }, { type: i0.NgZone }]; }, propDecorators: { diameter: [{
275 type: Input
276 }], strokeWidth: [{
277 type: Input
278 }], mode: [{
279 type: Input
280 }], value: [{
281 type: Input
282 }] } });
283//# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {coerceNumberProperty, NumberInput} from '@angular/cdk/coercion';\nimport {Platform, _getShadowRoot} from '@angular/cdk/platform';\nimport {ViewportRuler} from '@angular/cdk/scrolling';\nimport {DOCUMENT} from '@angular/common';\nimport {\n  ChangeDetectionStrategy,\n  Component,\n  ElementRef,\n  Inject,\n  InjectionToken,\n  Input,\n  Optional,\n  ViewEncapsulation,\n  OnInit,\n  ChangeDetectorRef,\n  OnDestroy,\n  NgZone,\n} from '@angular/core';\nimport {CanColor, mixinColor, ThemePalette} from '@angular/material/core';\nimport {ANIMATION_MODULE_TYPE} from '@angular/platform-browser/animations';\nimport {Subscription} from 'rxjs';\n\n/** Possible mode for a progress spinner. */\nexport type ProgressSpinnerMode = 'determinate' | 'indeterminate';\n\n/**\n * Base reference size of the spinner.\n * @docs-private\n */\nconst BASE_SIZE = 100;\n\n/**\n * Base reference stroke width of the spinner.\n * @docs-private\n */\nconst BASE_STROKE_WIDTH = 10;\n\n// Boilerplate for applying mixins to MatProgressSpinner.\n/** @docs-private */\nconst _MatProgressSpinnerBase = mixinColor(\n  class {\n    constructor(public _elementRef: ElementRef) {}\n  },\n  'primary',\n);\n\n/** Default `mat-progress-spinner` options that can be overridden. */\nexport interface MatProgressSpinnerDefaultOptions {\n  /** Default color of the spinner. */\n  color?: ThemePalette;\n  /** Diameter of the spinner. */\n  diameter?: number;\n  /** Width of the spinner's stroke. */\n  strokeWidth?: number;\n  /**\n   * Whether the animations should be force to be enabled, ignoring if the current environment is\n   * using NoopAnimationsModule.\n   */\n  _forceAnimations?: boolean;\n}\n\n/** Injection token to be used to override the default options for `mat-progress-spinner`. */\nexport const MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS =\n  new InjectionToken<MatProgressSpinnerDefaultOptions>('mat-progress-spinner-default-options', {\n    providedIn: 'root',\n    factory: MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY,\n  });\n\n/** @docs-private */\nexport function MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS_FACTORY(): MatProgressSpinnerDefaultOptions {\n  return {diameter: BASE_SIZE};\n}\n\n// .0001 percentage difference is necessary in order to avoid unwanted animation frames\n// for example because the animation duration is 4 seconds, .1% accounts to 4ms\n// which are enough to see the flicker described in\n// https://github.com/angular/components/issues/8984\nconst 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`;\n\n/**\n * `<mat-progress-spinner>` component.\n */\n@Component({\n  selector: 'mat-progress-spinner, mat-spinner',\n  exportAs: 'matProgressSpinner',\n  host: {\n    'role': 'progressbar',\n    // `mat-spinner` is here for backward compatibility.\n    'class': 'mat-progress-spinner mat-spinner',\n    // set tab index to -1 so screen readers will read the aria-label\n    // Note: there is a known issue with JAWS that does not read progressbar aria labels on FireFox\n    'tabindex': '-1',\n    '[class._mat-animation-noopable]': `_noopAnimations`,\n    '[style.width.px]': 'diameter',\n    '[style.height.px]': 'diameter',\n    '[attr.aria-valuemin]': 'mode === \"determinate\" ? 0 : null',\n    '[attr.aria-valuemax]': 'mode === \"determinate\" ? 100 : null',\n    '[attr.aria-valuenow]': 'mode === \"determinate\" ? value : null',\n    '[attr.mode]': 'mode',\n  },\n  inputs: ['color'],\n  templateUrl: 'progress-spinner.html',\n  styleUrls: ['progress-spinner.css'],\n  changeDetection: ChangeDetectionStrategy.OnPush,\n  encapsulation: ViewEncapsulation.None,\n})\nexport class MatProgressSpinner\n  extends _MatProgressSpinnerBase\n  implements OnInit, OnDestroy, CanColor\n{\n  private _diameter = BASE_SIZE;\n  private _value = 0;\n  private _strokeWidth: number;\n  private _resizeSubscription = Subscription.EMPTY;\n\n  /**\n   * Element to which we should add the generated style tags for the indeterminate animation.\n   * For most elements this is the document, but for the ones in the Shadow DOM we need to\n   * use the shadow root.\n   */\n  private _styleRoot: Node;\n\n  /**\n   * Tracks diameters of existing instances to de-dupe generated styles (default d = 100).\n   * We need to keep track of which elements the diameters were attached to, because for\n   * elements in the Shadow DOM the style tags are attached to the shadow root, rather\n   * than the document head.\n   */\n  private static _diameters = new WeakMap<Node, Set<number>>();\n\n  /** Whether the _mat-animation-noopable class should be applied, disabling animations.  */\n  _noopAnimations: boolean;\n\n  /** A string that is used for setting the spinner animation-name CSS property */\n  _spinnerAnimationLabel: string;\n\n  /** The diameter of the progress spinner (will set width and height of svg). */\n  @Input()\n  get diameter(): number {\n    return this._diameter;\n  }\n  set diameter(size: NumberInput) {\n    this._diameter = coerceNumberProperty(size);\n    this._spinnerAnimationLabel = this._getSpinnerAnimationLabel();\n\n    // If this is set before `ngOnInit`, the style root may not have been resolved yet.\n    if (this._styleRoot) {\n      this._attachStyleNode();\n    }\n  }\n\n  /** Stroke width of the progress spinner. */\n  @Input()\n  get strokeWidth(): number {\n    return this._strokeWidth || this.diameter / 10;\n  }\n  set strokeWidth(value: NumberInput) {\n    this._strokeWidth = coerceNumberProperty(value);\n  }\n\n  /** Mode of the progress circle */\n  @Input() mode: ProgressSpinnerMode = 'determinate';\n\n  /** Value of the progress circle. */\n  @Input()\n  get value(): number {\n    return this.mode === 'determinate' ? this._value : 0;\n  }\n  set value(newValue: NumberInput) {\n    this._value = Math.max(0, Math.min(100, coerceNumberProperty(newValue)));\n  }\n\n  constructor(\n    elementRef: ElementRef<HTMLElement>,\n    _platform: Platform,\n    @Optional() @Inject(DOCUMENT) private _document: any,\n    @Optional() @Inject(ANIMATION_MODULE_TYPE) animationMode: string,\n    @Inject(MAT_PROGRESS_SPINNER_DEFAULT_OPTIONS)\n    defaults?: MatProgressSpinnerDefaultOptions,\n    /**\n     * @deprecated `changeDetectorRef`, `viewportRuler` and `ngZone`\n     * parameters to become required.\n     * @breaking-change 14.0.0\n     */\n    changeDetectorRef?: ChangeDetectorRef,\n    viewportRuler?: ViewportRuler,\n    ngZone?: NgZone,\n  ) {\n    super(elementRef);\n\n    const trackedDiameters = MatProgressSpinner._diameters;\n    this._spinnerAnimationLabel = this._getSpinnerAnimationLabel();\n\n    // The base size is already inserted via the component's structural styles. We still\n    // need to track it so we don't end up adding the same styles again.\n    if (!trackedDiameters.has(_document.head)) {\n      trackedDiameters.set(_document.head, new Set<number>([BASE_SIZE]));\n    }\n\n    this._noopAnimations =\n      animationMode === 'NoopAnimations' && !!defaults && !defaults._forceAnimations;\n\n    if (elementRef.nativeElement.nodeName.toLowerCase() === 'mat-spinner') {\n      this.mode = 'indeterminate';\n    }\n\n    if (defaults) {\n      if (defaults.color) {\n        this.color = this.defaultColor = defaults.color;\n      }\n\n      if (defaults.diameter) {\n        this.diameter = defaults.diameter;\n      }\n\n      if (defaults.strokeWidth) {\n        this.strokeWidth = defaults.strokeWidth;\n      }\n    }\n\n    // Safari has an issue where the circle isn't positioned correctly when the page has a\n    // different zoom level from the default. This handler triggers a recalculation of the\n    // `transform-origin` when the page zoom level changes.\n    // See `_getCircleTransformOrigin` for more info.\n    // @breaking-change 14.0.0 Remove null checks for `_changeDetectorRef`,\n    // `viewportRuler` and `ngZone`.\n    if (_platform.isBrowser && _platform.SAFARI && viewportRuler && changeDetectorRef && ngZone) {\n      this._resizeSubscription = viewportRuler.change(150).subscribe(() => {\n        // When the window is resize while the spinner is in `indeterminate` mode, we\n        // have to mark for check so the transform origin of the circle can be recomputed.\n        if (this.mode === 'indeterminate') {\n          ngZone.run(() => changeDetectorRef.markForCheck());\n        }\n      });\n    }\n  }\n\n  ngOnInit() {\n    const element = this._elementRef.nativeElement;\n\n    // Note that we need to look up the root node in ngOnInit, rather than the constructor, because\n    // Angular seems to create the element outside the shadow root and then moves it inside, if the\n    // node is inside an `ngIf` and a ShadowDom-encapsulated component.\n    this._styleRoot = _getShadowRoot(element) || this._document.head;\n    this._attachStyleNode();\n    element.classList.add('mat-progress-spinner-indeterminate-animation');\n  }\n\n  ngOnDestroy() {\n    this._resizeSubscription.unsubscribe();\n  }\n\n  /** The radius of the spinner, adjusted for stroke width. */\n  _getCircleRadius() {\n    return (this.diameter - BASE_STROKE_WIDTH) / 2;\n  }\n\n  /** The view box of the spinner's svg element. */\n  _getViewBox() {\n    const viewBox = this._getCircleRadius() * 2 + this.strokeWidth;\n    return `0 0 ${viewBox} ${viewBox}`;\n  }\n\n  /** The stroke circumference of the svg circle. */\n  _getStrokeCircumference(): number {\n    return 2 * Math.PI * this._getCircleRadius();\n  }\n\n  /** The dash offset of the svg circle. */\n  _getStrokeDashOffset() {\n    if (this.mode === 'determinate') {\n      return (this._getStrokeCircumference() * (100 - this._value)) / 100;\n    }\n\n    return null;\n  }\n\n  /** Stroke width of the circle in percent. */\n  _getCircleStrokeWidth() {\n    return (this.strokeWidth / this.diameter) * 100;\n  }\n\n  /** Gets the `transform-origin` for the inner circle element. */\n  _getCircleTransformOrigin(svg: HTMLElement): string {\n    // Safari has an issue where the `transform-origin` doesn't work as expected when the page\n    // has a different zoom level from the default. The problem appears to be that a zoom\n    // is applied on the `svg` node itself. We can work around it by calculating the origin\n    // based on the zoom level. On all other browsers the `currentScale` appears to always be 1.\n    const scale = ((svg as unknown as SVGSVGElement).currentScale ?? 1) * 50;\n    return `${scale}% ${scale}%`;\n  }\n\n  /** Dynamically generates a style tag containing the correct animation for this diameter. */\n  private _attachStyleNode(): void {\n    const styleRoot = this._styleRoot;\n    const currentDiameter = this._diameter;\n    const diameters = MatProgressSpinner._diameters;\n    let diametersForElement = diameters.get(styleRoot);\n\n    if (!diametersForElement || !diametersForElement.has(currentDiameter)) {\n      const styleTag: HTMLStyleElement = this._document.createElement('style');\n      styleTag.setAttribute('mat-spinner-animation', this._spinnerAnimationLabel);\n      styleTag.textContent = this._getAnimationText();\n      styleRoot.appendChild(styleTag);\n\n      if (!diametersForElement) {\n        diametersForElement = new Set<number>();\n        diameters.set(styleRoot, diametersForElement);\n      }\n\n      diametersForElement.add(currentDiameter);\n    }\n  }\n\n  /** Generates animation styles adjusted for the spinner's diameter. */\n  private _getAnimationText(): string {\n    const strokeCircumference = this._getStrokeCircumference();\n    return (\n      INDETERMINATE_ANIMATION_TEMPLATE\n        // Animation should begin at 5% and end at 80%\n        .replace(/START_VALUE/g, `${0.95 * strokeCircumference}`)\n        .replace(/END_VALUE/g, `${0.2 * strokeCircumference}`)\n        .replace(/DIAMETER/g, `${this._spinnerAnimationLabel}`)\n    );\n  }\n\n  /** Returns the circle diameter formatted for use with the animation-name CSS property. */\n  private _getSpinnerAnimationLabel(): string {\n    // The string of a float point number will include a period ‘.’ character,\n    // which is not valid for a CSS animation-name.\n    return this.diameter.toString().replace('.', '_');\n  }\n}\n","<!--\n  preserveAspectRatio of xMidYMid meet as the center of the viewport is the circle's\n  center. The center of the circle will remain at the center of the mat-progress-spinner\n  element containing the SVG.\n-->\n<!--\n  All children need to be hidden for screen readers in order to support ChromeVox.\n  More context in the issue: https://github.com/angular/components/issues/22165.\n-->\n<svg\n  [style.width.px]=\"diameter\"\n  [style.height.px]=\"diameter\"\n  [attr.viewBox]=\"_getViewBox()\"\n  preserveAspectRatio=\"xMidYMid meet\"\n  focusable=\"false\"\n  [ngSwitch]=\"mode === 'indeterminate'\"\n  aria-hidden=\"true\"\n  #svg>\n\n  <!--\n    Technically we can reuse the same `circle` element, however Safari has an issue that breaks\n    the SVG rendering in determinate mode, after switching between indeterminate and determinate.\n    Using a different element avoids the issue. An alternative to this is adding `display: none`\n    for a split second and then removing it when switching between modes, but it's hard to know\n    for how long to hide the element and it can cause the UI to blink.\n  -->\n  <circle\n    *ngSwitchCase=\"true\"\n    cx=\"50%\"\n    cy=\"50%\"\n    [attr.r]=\"_getCircleRadius()\"\n    [style.animation-name]=\"'mat-progress-spinner-stroke-rotate-' + _spinnerAnimationLabel\"\n    [style.stroke-dashoffset.px]=\"_getStrokeDashOffset()\"\n    [style.stroke-dasharray.px]=\"_getStrokeCircumference()\"\n    [style.stroke-width.%]=\"_getCircleStrokeWidth()\"\n    [style.transform-origin]=\"_getCircleTransformOrigin(svg)\"></circle>\n\n  <circle\n    *ngSwitchCase=\"false\"\n    cx=\"50%\"\n    cy=\"50%\"\n    [attr.r]=\"_getCircleRadius()\"\n    [style.stroke-dashoffset.px]=\"_getStrokeDashOffset()\"\n    [style.stroke-dasharray.px]=\"_getStrokeCircumference()\"\n    [style.stroke-width.%]=\"_getCircleStrokeWidth()\"\n    [style.transform-origin]=\"_getCircleTransformOrigin(svg)\"></circle>\n</svg>\n"]}
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