| {"version":3,"file":"material-stepper.umd.min.js","sources":["../../node_modules/tslib/tslib.es6.js","../../src/material/stepper/stepper-intl.ts","../../src/material/stepper/step-label.ts","../../src/material/stepper/step-header.ts","../../src/material/stepper/stepper-animations.ts","../../src/material/stepper/stepper-icon.ts","../../src/material/stepper/stepper.ts","../../src/material/stepper/stepper-button.ts","../../src/material/stepper/stepper-module.ts"],"sourcesContent":["/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation. All rights reserved.\r\nLicensed under the Apache License, Version 2.0 (the \"License\"); you may not use\r\nthis file except in compliance with the License. You may obtain a copy of the\r\nLicense at http://www.apache.org/licenses/LICENSE-2.0\r\n\r\nTHIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\r\nKIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED\r\nWARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,\r\nMERCHANTABLITY OR NON-INFRINGEMENT.\r\n\r\nSee the Apache Version 2.0 License for specific language governing permissions\r\nand limitations under the License.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)\r\n t[p[i]] = s[p[i]];\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport function __exportStar(m, exports) {\r\n for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\r\n}\r\n\r\nexport function __values(o) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator], i = 0;\r\n if (m) return m.call(o);\r\n return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];\r\n result.default = mod;\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n","/**\n * @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 {Injectable, Optional, SkipSelf} from '@angular/core';\nimport {Subject} from 'rxjs';\n\n\n/** Stepper data that is required for internationalization. */\n@Injectable({providedIn: 'root'})\nexport class MatStepperIntl {\n /**\n * Stream that emits whenever the labels here are changed. Use this to notify\n * components if the labels have changed after initialization.\n */\n readonly changes: Subject<void> = new Subject<void>();\n\n /** Label that is rendered below optional steps. */\n optionalLabel: string = 'Optional';\n}\n\n\n/** @docs-private */\nexport function MAT_STEPPER_INTL_PROVIDER_FACTORY(parentIntl: MatStepperIntl) {\n return parentIntl || new MatStepperIntl();\n}\n\n/** @docs-private */\nexport const MAT_STEPPER_INTL_PROVIDER = {\n provide: MatStepperIntl,\n deps: [[new Optional(), new SkipSelf(), MatStepperIntl]],\n useFactory: MAT_STEPPER_INTL_PROVIDER_FACTORY\n};\n","/**\n * @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 {Directive} from '@angular/core';\nimport {CdkStepLabel} from '@angular/cdk/stepper';\n\n@Directive({\n selector: '[matStepLabel]',\n})\nexport class MatStepLabel extends CdkStepLabel {}\n","/**\n * @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 {FocusMonitor} from '@angular/cdk/a11y';\nimport {\n ChangeDetectionStrategy,\n ChangeDetectorRef,\n Component,\n ElementRef,\n Input,\n OnDestroy,\n ViewEncapsulation,\n TemplateRef,\n} from '@angular/core';\nimport {Subscription} from 'rxjs';\nimport {MatStepLabel} from './step-label';\nimport {MatStepperIntl} from './stepper-intl';\nimport {MatStepperIconContext} from './stepper-icon';\nimport {CdkStepHeader, StepState} from '@angular/cdk/stepper';\n\n\n@Component({\n moduleId: module.id,\n selector: 'mat-step-header',\n templateUrl: 'step-header.html',\n styleUrls: ['step-header.css'],\n host: {\n 'class': 'mat-step-header',\n 'role': 'tab',\n },\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class MatStepHeader extends CdkStepHeader implements OnDestroy {\n private _intlSubscription: Subscription;\n\n /** State of the given step. */\n @Input() state: StepState;\n\n /** Label of the given step. */\n @Input() label: MatStepLabel | string;\n\n /** Error message to display when there's an error. */\n @Input() errorMessage: string;\n\n /** Overrides for the header icons, passed in via the stepper. */\n @Input() iconOverrides: {[key: string]: TemplateRef<MatStepperIconContext>};\n\n /** Index of the given step. */\n @Input() index: number;\n\n /** Whether the given step is selected. */\n @Input() selected: boolean;\n\n /** Whether the given step label is active. */\n @Input() active: boolean;\n\n /** Whether the given step is optional. */\n @Input() optional: boolean;\n\n /** Whether the ripple should be disabled. */\n @Input() disableRipple: boolean;\n\n constructor(\n public _intl: MatStepperIntl,\n private _focusMonitor: FocusMonitor,\n _elementRef: ElementRef<HTMLElement>,\n changeDetectorRef: ChangeDetectorRef) {\n super(_elementRef);\n _focusMonitor.monitor(_elementRef, true);\n this._intlSubscription = _intl.changes.subscribe(() => changeDetectorRef.markForCheck());\n }\n\n ngOnDestroy() {\n this._intlSubscription.unsubscribe();\n this._focusMonitor.stopMonitoring(this._elementRef);\n }\n\n /** Focuses the step header. */\n focus() {\n this._focusMonitor.focusVia(this._elementRef, 'program');\n }\n\n /** Returns string label of given step if it is a text label. */\n _stringLabel(): string | null {\n return this.label instanceof MatStepLabel ? null : this.label;\n }\n\n /** Returns MatStepLabel if the label of given step is a template label. */\n _templateLabel(): MatStepLabel | null {\n return this.label instanceof MatStepLabel ? this.label : null;\n }\n\n /** Returns the host HTML element. */\n _getHostElement() {\n return this._elementRef.nativeElement;\n }\n\n /** Template context variables that are exposed to the `matStepperIcon` instances. */\n _getIconContext(): MatStepperIconContext {\n return {\n index: this.index,\n active: this.active,\n optional: this.optional\n };\n }\n\n _getDefaultTextForState(state: StepState): string {\n if (state == 'number') {\n return `${this.index + 1}`;\n }\n if (state == 'edit') {\n return 'create';\n }\n if (state == 'error') {\n return 'warning';\n }\n return state;\n }\n}\n","/**\n * @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 */\nimport {\n animate,\n state,\n style,\n transition,\n trigger,\n AnimationTriggerMetadata,\n} from '@angular/animations';\n\n/**\n * Animations used by the Material steppers.\n * @docs-private\n */\nexport const matStepperAnimations: {\n readonly horizontalStepTransition: AnimationTriggerMetadata;\n readonly verticalStepTransition: AnimationTriggerMetadata;\n} = {\n /** Animation that transitions the step along the X axis in a horizontal stepper. */\n horizontalStepTransition: trigger('stepTransition', [\n state('previous', style({transform: 'translate3d(-100%, 0, 0)', visibility: 'hidden'})),\n state('current', style({transform: 'none', visibility: 'visible'})),\n state('next', style({transform: 'translate3d(100%, 0, 0)', visibility: 'hidden'})),\n transition('* => *', animate('500ms cubic-bezier(0.35, 0, 0.25, 1)'))\n ]),\n\n /** Animation that transitions the step along the Y axis in a vertical stepper. */\n verticalStepTransition: trigger('stepTransition', [\n state('previous', style({height: '0px', visibility: 'hidden'})),\n state('next', style({height: '0px', visibility: 'hidden'})),\n state('current', style({height: '*', visibility: 'visible'})),\n transition('* <=> current', animate('225ms cubic-bezier(0.4, 0.0, 0.2, 1)'))\n ])\n};\n","/**\n * @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 {Directive, Input, TemplateRef} from '@angular/core';\nimport {StepState} from '@angular/cdk/stepper';\n\n/** Template context available to an attached `matStepperIcon`. */\nexport interface MatStepperIconContext {\n /** Index of the step. */\n index: number;\n /** Whether the step is currently active. */\n active: boolean;\n /** Whether the step is optional. */\n optional: boolean;\n}\n\n/**\n * Template to be used to override the icons inside the step header.\n */\n@Directive({\n selector: 'ng-template[matStepperIcon]',\n})\nexport class MatStepperIcon {\n /** Name of the icon to be overridden. */\n @Input('matStepperIcon') name: StepState;\n\n constructor(public templateRef: TemplateRef<MatStepperIconContext>) {}\n}\n","/**\n * @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 {Directionality} from '@angular/cdk/bidi';\nimport {\n CdkStep,\n CdkStepper,\n StepContentPositionState,\n STEPPER_GLOBAL_OPTIONS,\n StepperOptions\n} from '@angular/cdk/stepper';\nimport {AnimationEvent} from '@angular/animations';\nimport {\n AfterContentInit,\n ChangeDetectionStrategy,\n ChangeDetectorRef,\n Component,\n ContentChild,\n ContentChildren,\n Directive,\n ElementRef,\n EventEmitter,\n forwardRef,\n Inject,\n Input,\n Optional,\n Output,\n QueryList,\n SkipSelf,\n TemplateRef,\n ViewChildren,\n ViewEncapsulation,\n} from '@angular/core';\nimport {FormControl, FormGroupDirective, NgForm} from '@angular/forms';\nimport {DOCUMENT} from '@angular/common';\nimport {ErrorStateMatcher} from '@angular/material/core';\nimport {Subject} from 'rxjs';\nimport {takeUntil, distinctUntilChanged} from 'rxjs/operators';\n\nimport {MatStepHeader} from './step-header';\nimport {MatStepLabel} from './step-label';\nimport {matStepperAnimations} from './stepper-animations';\nimport {MatStepperIcon, MatStepperIconContext} from './stepper-icon';\n\n@Component({\n moduleId: module.id,\n selector: 'mat-step',\n templateUrl: 'step.html',\n providers: [{provide: ErrorStateMatcher, useExisting: MatStep}],\n encapsulation: ViewEncapsulation.None,\n exportAs: 'matStep',\n changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class MatStep extends CdkStep implements ErrorStateMatcher {\n /** Content for step label given by `<ng-template matStepLabel>`. */\n @ContentChild(MatStepLabel, {static: false}) stepLabel: MatStepLabel;\n\n /** @breaking-change 8.0.0 remove the `?` after `stepperOptions` */\n constructor(@Inject(forwardRef(() => MatStepper)) stepper: MatStepper,\n @SkipSelf() private _errorStateMatcher: ErrorStateMatcher,\n @Optional() @Inject(STEPPER_GLOBAL_OPTIONS) stepperOptions?: StepperOptions) {\n super(stepper, stepperOptions);\n }\n\n /** Custom error state matcher that additionally checks for validity of interacted form. */\n isErrorState(control: FormControl | null, form: FormGroupDirective | NgForm | null): boolean {\n const originalErrorState = this._errorStateMatcher.isErrorState(control, form);\n\n // Custom error state checks for the validity of form that is not submitted or touched\n // since user can trigger a form change by calling for another step without directly\n // interacting with the current form.\n const customErrorState = !!(control && control.invalid && this.interacted);\n\n return originalErrorState || customErrorState;\n }\n}\n\n\n@Directive({selector: '[matStepper]', providers: [{provide: CdkStepper, useExisting: MatStepper}]})\nexport class MatStepper extends CdkStepper implements AfterContentInit {\n /** The list of step headers of the steps in the stepper. */\n @ViewChildren(MatStepHeader) _stepHeader: QueryList<MatStepHeader>;\n\n /** Steps that the stepper holds. */\n @ContentChildren(MatStep) _steps: QueryList<MatStep>;\n\n /** Custom icon overrides passed in by the consumer. */\n @ContentChildren(MatStepperIcon) _icons: QueryList<MatStepperIcon>;\n\n /** Event emitted when the current step is done transitioning in. */\n @Output() readonly animationDone: EventEmitter<void> = new EventEmitter<void>();\n\n /** Whether ripples should be disabled for the step headers. */\n @Input() disableRipple: boolean;\n\n /** Consumer-specified template-refs to be used to override the header icons. */\n _iconOverrides: {[key: string]: TemplateRef<MatStepperIconContext>} = {};\n\n /** Stream of animation `done` events when the body expands/collapses. */\n _animationDone = new Subject<AnimationEvent>();\n\n ngAfterContentInit() {\n this._icons.forEach(({name, templateRef}) => this._iconOverrides[name] = templateRef);\n\n // Mark the component for change detection whenever the content children query changes\n this._steps.changes.pipe(takeUntil(this._destroyed)).subscribe(() => this._stateChanged());\n\n this._animationDone.pipe(\n // This needs a `distinctUntilChanged` in order to avoid emitting the same event twice due\n // to a bug in animations where the `.done` callback gets invoked twice on some browsers.\n // See https://github.com/angular/angular/issues/24084\n distinctUntilChanged((x, y) => x.fromState === y.fromState && x.toState === y.toState),\n takeUntil(this._destroyed)\n ).subscribe(event => {\n if ((event.toState as StepContentPositionState) === 'current') {\n this.animationDone.emit();\n }\n });\n }\n}\n\n@Component({\n moduleId: module.id,\n selector: 'mat-horizontal-stepper',\n exportAs: 'matHorizontalStepper',\n templateUrl: 'stepper-horizontal.html',\n styleUrls: ['stepper.css'],\n inputs: ['selectedIndex'],\n host: {\n 'class': 'mat-stepper-horizontal',\n '[class.mat-stepper-label-position-end]': 'labelPosition == \"end\"',\n '[class.mat-stepper-label-position-bottom]': 'labelPosition == \"bottom\"',\n 'aria-orientation': 'horizontal',\n 'role': 'tablist',\n },\n animations: [matStepperAnimations.horizontalStepTransition],\n providers: [\n {provide: MatStepper, useExisting: MatHorizontalStepper},\n {provide: CdkStepper, useExisting: MatHorizontalStepper}\n ],\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class MatHorizontalStepper extends MatStepper {\n /** Whether the label should display in bottom or end position. */\n @Input()\n labelPosition: 'bottom' | 'end' = 'end';\n}\n\n@Component({\n moduleId: module.id,\n selector: 'mat-vertical-stepper',\n exportAs: 'matVerticalStepper',\n templateUrl: 'stepper-vertical.html',\n styleUrls: ['stepper.css'],\n inputs: ['selectedIndex'],\n host: {\n 'class': 'mat-stepper-vertical',\n 'aria-orientation': 'vertical',\n 'role': 'tablist',\n },\n animations: [matStepperAnimations.verticalStepTransition],\n providers: [\n {provide: MatStepper, useExisting: MatVerticalStepper},\n {provide: CdkStepper, useExisting: MatVerticalStepper}\n ],\n encapsulation: ViewEncapsulation.None,\n changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class MatVerticalStepper extends MatStepper {\n constructor(\n @Optional() dir: Directionality,\n changeDetectorRef: ChangeDetectorRef,\n // @breaking-change 8.0.0 `elementRef` and `_document` parameters to become required.\n elementRef?: ElementRef<HTMLElement>,\n @Inject(DOCUMENT) _document?: any) {\n super(dir, changeDetectorRef, elementRef, _document);\n this._orientation = 'vertical';\n }\n}\n","/**\n * @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 {CdkStepperNext, CdkStepperPrevious} from '@angular/cdk/stepper';\nimport {Directive} from '@angular/core';\n\n/** Button that moves to the next step in a stepper workflow. */\n@Directive({\n selector: 'button[matStepperNext]',\n host: {\n '[type]': 'type',\n },\n inputs: ['type']\n})\nexport class MatStepperNext extends CdkStepperNext {\n}\n\n/** Button that moves to the previous step in a stepper workflow. */\n@Directive({\n selector: 'button[matStepperPrevious]',\n host: {\n '[type]': 'type',\n },\n inputs: ['type']\n})\nexport class MatStepperPrevious extends CdkStepperPrevious {\n}\n","/**\n * @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 {PortalModule} from '@angular/cdk/portal';\nimport {CdkStepperModule} from '@angular/cdk/stepper';\nimport {CommonModule} from '@angular/common';\nimport {NgModule} from '@angular/core';\nimport {MatButtonModule} from '@angular/material/button';\nimport {ErrorStateMatcher, MatCommonModule, MatRippleModule} from '@angular/material/core';\nimport {MatIconModule} from '@angular/material/icon';\nimport {MatStepHeader} from './step-header';\nimport 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