@angular/cdk/fesm2022/stepper.mjs.map

Angular Material Component Development Kit

{"version":3,"file":"stepper.mjs","sources":["../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/src/cdk/stepper/step-header.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/src/cdk/stepper/step-label.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/src/cdk/stepper/stepper.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/src/cdk/stepper/stepper-button.ts","../../../../../darwin_arm64-fastbuild-ST-fdfa778d11ba/bin/src/cdk/stepper/stepper-module.ts"],"sourcesContent":["/**\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.dev/license\n */\n\nimport {Directive, ElementRef, inject} from '@angular/core';\nimport {FocusableOption} from '../a11y';\n\n@Directive({\n  selector: '[cdkStepHeader]',\n  host: {\n    'role': 'tab',\n  },\n})\nexport class CdkStepHeader implements FocusableOption {\n  _elementRef = inject<ElementRef<HTMLElement>>(ElementRef);\n\n  /** Focuses the step header. */\n  focus() {\n    this._elementRef.nativeElement.focus();\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.dev/license\n */\n\nimport {Directive, TemplateRef, inject} from '@angular/core';\n\n@Directive({\n  selector: '[cdkStepLabel]',\n})\nexport class CdkStepLabel {\n  template = inject<TemplateRef<any>>(TemplateRef);\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.dev/license\n */\n\nimport {_IdGenerator, FocusableOption, FocusKeyManager} from '../a11y';\nimport {Direction, Directionality} from '../bidi';\nimport {ENTER, hasModifierKey, SPACE} from '../keycodes';\nimport {\n  AfterViewInit,\n  ChangeDetectorRef,\n  Component,\n  ContentChild,\n  ContentChildren,\n  Directive,\n  ElementRef,\n  EventEmitter,\n  InjectionToken,\n  Input,\n  OnChanges,\n  OnDestroy,\n  Output,\n  QueryList,\n  TemplateRef,\n  ViewChild,\n  ViewEncapsulation,\n  AfterContentInit,\n  booleanAttribute,\n  numberAttribute,\n  inject,\n  signal,\n  computed,\n} from '@angular/core';\nimport {\n  ControlContainer,\n  type AbstractControl,\n  type NgForm,\n  type FormGroupDirective,\n} from '@angular/forms';\nimport type {Field} from '@angular/forms/signals';\nimport {_getFocusedElementPierceShadowDom} from '../platform';\nimport {Observable, of as observableOf, Subject} from 'rxjs';\nimport {startWith, takeUntil} from 'rxjs/operators';\n\nimport {CdkStepHeader} from './step-header';\nimport {CdkStepLabel} from './step-label';\n\n/**\n * Position state of the content of each step in stepper that is used for transitioning\n * the content into correct position upon step selection change.\n */\nexport type StepContentPositionState = 'previous' | 'current' | 'next';\n\n/** Possible orientation of a stepper. */\nexport type StepperOrientation = 'horizontal' | 'vertical';\n\n/** Possible controls that can be assigned to a step. */\nexport type StepControl = AbstractControl | Field<unknown>;\n\n/** Change event emitted on selection changes. */\nexport class StepperSelectionEvent {\n  /** Index of the step now selected. */\n  selectedIndex!: number;\n\n  /** Index of the step previously selected. */\n  previouslySelectedIndex!: number;\n\n  /** The step instance now selected. */\n  selectedStep!: CdkStep;\n\n  /** The step instance previously selected. */\n  previouslySelectedStep!: CdkStep;\n}\n\n/** The state of each step. */\nexport type StepState = 'number' | 'edit' | 'done' | 'error' | string;\n\n/** Enum to represent the different states of the steps. */\nexport const STEP_STATE = {\n  NUMBER: 'number',\n  EDIT: 'edit',\n  DONE: 'done',\n  ERROR: 'error',\n};\n\n/** InjectionToken that can be used to specify the global stepper options. */\nexport const STEPPER_GLOBAL_OPTIONS = new InjectionToken<StepperOptions>('STEPPER_GLOBAL_OPTIONS');\n\n/** Configurable options for stepper. */\nexport interface StepperOptions {\n  /**\n   * Whether the stepper should display an error state or not.\n   * Default behavior is assumed to be false.\n   */\n  showError?: boolean;\n\n  /**\n   * Whether the stepper should display the default indicator type\n   * or not.\n   * Default behavior is assumed to be true.\n   */\n  displayDefaultIndicatorType?: boolean;\n}\n\n@Component({\n  selector: 'cdk-step',\n  exportAs: 'cdkStep',\n  template: '<ng-template><ng-content/></ng-template>',\n  encapsulation: ViewEncapsulation.None,\n})\nexport class CdkStep implements OnChanges {\n  private _stepperOptions: StepperOptions;\n  _stepper = inject(CdkStepper);\n  _displayDefaultIndicatorType: boolean;\n\n  /** Template for step label if it exists. */\n  @ContentChild(CdkStepLabel) stepLabel!: CdkStepLabel;\n\n  /** Forms that have been projected into the step. */\n  @ContentChildren(\n    // Note: we look for `ControlContainer` here, because both `NgForm` and `FormGroupDirective`\n    // provides themselves as such, but we don't want to have a concrete reference to both of\n    // the directives. The type is marked as `Partial` in case we run into a class that provides\n    // itself as `ControlContainer` but doesn't have the same interface as the directives.\n    ControlContainer,\n    {\n      descendants: true,\n    },\n  )\n  protected _childForms: QueryList<Partial<NgForm | FormGroupDirective>> | undefined;\n\n  /** Template for step content. */\n  @ViewChild(TemplateRef, {static: true}) content!: TemplateRef<any>;\n\n  /** The top level abstract control of the step. */\n  @Input() stepControl!: StepControl;\n\n  /** Whether user has attempted to move away from the step. */\n  get interacted(): boolean {\n    return this._interacted();\n  }\n  set interacted(value: boolean) {\n    this._interacted.set(value);\n  }\n  private _interacted = signal(false);\n\n  /** Emits when the user has attempted to move away from the step. */\n  @Output('interacted')\n  readonly interactedStream: EventEmitter<CdkStep> = new EventEmitter<CdkStep>();\n\n  /** Plain text label of the step. */\n  @Input() label!: string;\n\n  /** Error message to display when there's an error. */\n  @Input() errorMessage!: string;\n\n  /** Aria label for the tab. */\n  @Input('aria-label') ariaLabel!: string;\n\n  /**\n   * Reference to the element that the tab is labelled by.\n   * Will be cleared if `aria-label` is set at the same time.\n   */\n  @Input('aria-labelledby') ariaLabelledby!: string;\n\n  /** State of the step. */\n  @Input()\n  get state(): StepState {\n    return this._state()!;\n  }\n  set state(value: StepState) {\n    this._state.set(value);\n  }\n  private _state = signal<StepState | undefined>(undefined);\n\n  /** Whether the user can return to this step once it has been marked as completed. */\n  @Input({transform: booleanAttribute})\n  get editable(): boolean {\n    return this._editable()!;\n  }\n  set editable(value: boolean) {\n    this._editable.set(value);\n  }\n  private _editable = signal(true);\n\n  /** Whether the completion of step is optional. */\n  @Input({transform: booleanAttribute}) optional: boolean = false;\n\n  /** Whether step is marked as completed. */\n  @Input({transform: booleanAttribute})\n  get completed(): boolean {\n    const override = this._completedOverride();\n    const interacted = this._interacted();\n\n    if (override != null) {\n      return override;\n    }\n\n    return interacted && (!this.stepControl || isValid(this.stepControl));\n  }\n  set completed(value: boolean) {\n    this._completedOverride.set(value);\n  }\n  _completedOverride = signal<boolean | null>(null);\n\n  /** Current index of the step within the stepper. */\n  readonly index = signal(-1);\n\n  /** Whether the step is selected. */\n  readonly isSelected = computed<boolean>(() => this._stepper.selectedIndex === this.index());\n\n  /** Type of indicator that should be shown for the step. */\n  readonly indicatorType = computed<StepState>(() => {\n    const selected = this.isSelected();\n    const completed = this.completed;\n    const defaultState = this._state() ?? STEP_STATE.NUMBER;\n    const editable = this._editable();\n\n    if (this._showError() && this.hasError && !selected) {\n      return STEP_STATE.ERROR;\n    }\n\n    if (this._displayDefaultIndicatorType) {\n      if (!completed || selected) {\n        return STEP_STATE.NUMBER;\n      }\n      return editable ? STEP_STATE.EDIT : STEP_STATE.DONE;\n    } else {\n      if (completed && !selected) {\n        return STEP_STATE.DONE;\n      } else if (completed && selected) {\n        return defaultState;\n      }\n      return editable && selected ? STEP_STATE.EDIT : defaultState;\n    }\n  });\n\n  /** Whether the user can navigate to the step. */\n  readonly isNavigable = computed<boolean>(() => {\n    const isSelected = this.isSelected();\n    const isCompleted = this.completed;\n    return isCompleted || isSelected || !this._stepper.linear;\n  });\n\n  /** Whether step has an error. */\n  @Input({transform: booleanAttribute})\n  get hasError(): boolean {\n    const customError = this._customError();\n    return customError == null ? this._getDefaultError() : customError;\n  }\n  set hasError(value: boolean) {\n    this._customError.set(value);\n  }\n  private _customError = signal<boolean | null>(null);\n\n  private _getDefaultError() {\n    return this.interacted && !!this.stepControl && isInvalid(this.stepControl);\n  }\n\n  constructor() {\n    const stepperOptions = inject<StepperOptions>(STEPPER_GLOBAL_OPTIONS, {optional: true});\n    this._stepperOptions = stepperOptions ? stepperOptions : {};\n    this._displayDefaultIndicatorType = this._stepperOptions.displayDefaultIndicatorType !== false;\n  }\n\n  /** Selects this step component. */\n  select(): void {\n    this._stepper.selected = this;\n  }\n\n  /** Resets the step to its initial state. Note that this includes resetting form data. */\n  reset(): void {\n    this._interacted.set(false);\n\n    if (this._completedOverride() != null) {\n      this._completedOverride.set(false);\n    }\n\n    if (this._customError() != null) {\n      this._customError.set(false);\n    }\n\n    if (this.stepControl) {\n      // Reset the forms since the default error state matchers will show errors on submit and we\n      // want the form to be back to its initial state (see #29781). Submitted state is on the\n      // individual directives, rather than the control, so we need to reset them ourselves.\n      this._childForms?.forEach(form => form.resetForm?.());\n      reset(this.stepControl);\n    }\n  }\n\n  ngOnChanges() {\n    // Since basically all inputs of the MatStep get proxied through the view down to the\n    // underlying MatStepHeader, we have to make sure that change detection runs correctly.\n    this._stepper._stateChanged();\n  }\n\n  _markAsInteracted() {\n    if (!this._interacted()) {\n      this._interacted.set(true);\n      this.interactedStream.emit(this);\n    }\n  }\n\n  /** Determines whether the error state can be shown. */\n  _showError(): boolean {\n    // We want to show the error state either if the user opted into/out of it using the\n    // global options, or if they've explicitly set it through the `hasError` input.\n    return this._stepperOptions.showError ?? this._customError() != null;\n  }\n}\n\n@Directive({\n  selector: '[cdkStepper]',\n  exportAs: 'cdkStepper',\n})\nexport class CdkStepper implements AfterContentInit, AfterViewInit, OnDestroy {\n  private _dir = inject(Directionality, {optional: true});\n  private _changeDetectorRef = inject(ChangeDetectorRef);\n  protected _elementRef = inject<ElementRef<HTMLElement>>(ElementRef);\n\n  /** Emits when the component is destroyed. */\n  protected readonly _destroyed = new Subject<void>();\n\n  /** Used for managing keyboard focus. */\n  private _keyManager: FocusKeyManager<FocusableOption> | undefined;\n\n  /** Full list of steps inside the stepper, including inside nested steppers. */\n  @ContentChildren(CdkStep, {descendants: true}) _steps!: QueryList<CdkStep>;\n\n  /** Steps that belong to the current stepper, excluding ones from nested steppers. */\n  readonly steps: QueryList<CdkStep> = new QueryList<CdkStep>();\n\n  /** The list of step headers of the steps in the stepper. */\n  @ContentChildren(CdkStepHeader, {descendants: true}) _stepHeader!: QueryList<CdkStepHeader>;\n\n  /** List of step headers sorted based on their DOM order. */\n  private _sortedHeaders = new QueryList<CdkStepHeader>();\n\n  /** Whether the validity of previous steps should be checked or not. */\n  @Input({transform: booleanAttribute})\n  get linear(): boolean {\n    return this._linear();\n  }\n  set linear(value: boolean) {\n    this._linear.set(value);\n  }\n  private _linear = signal(false);\n\n  /** The index of the selected step. */\n  @Input({transform: numberAttribute})\n  get selectedIndex(): number {\n    return this._selectedIndex();\n  }\n  set selectedIndex(index: number) {\n    if (this._steps) {\n      // Ensure that the index can't be out of bounds.\n      if (!this._isValidIndex(index) && (typeof ngDevMode === 'undefined' || ngDevMode)) {\n        throw Error('cdkStepper: Cannot assign out-of-bounds value to `selectedIndex`.');\n      }\n\n      if (this.selectedIndex !== index) {\n        this.selected?._markAsInteracted();\n\n        if (\n          !this._anyControlsInvalidOrPending(index) &&\n          (index >= this.selectedIndex || this.steps.toArray()[index].editable)\n        ) {\n          this._updateSelectedItemIndex(index);\n        }\n      }\n    } else {\n      this._selectedIndex.set(index);\n    }\n  }\n  private _selectedIndex = signal(0);\n\n  /** The step that is selected. */\n  @Input()\n  get selected(): CdkStep | undefined {\n    return this.steps ? this.steps.toArray()[this.selectedIndex] : undefined;\n  }\n  set selected(step: CdkStep | undefined) {\n    this.selectedIndex = step && this.steps ? this.steps.toArray().indexOf(step) : -1;\n  }\n\n  /** Event emitted when the selected step has changed. */\n  @Output() readonly selectionChange = new EventEmitter<StepperSelectionEvent>();\n\n  /** Output to support two-way binding on `[(selectedIndex)]` */\n  @Output() readonly selectedIndexChange: EventEmitter<number> = new EventEmitter<number>();\n\n  /** Used to track unique ID for each stepper component. */\n  private _groupId = inject(_IdGenerator).getId('cdk-stepper-');\n\n  /** Orientation of the stepper. */\n  @Input()\n  get orientation(): StepperOrientation {\n    return this._orientation;\n  }\n  set orientation(value: StepperOrientation) {\n    // This is a protected method so that `MatStepper` can hook into it.\n    this._orientation = value;\n\n    if (this._keyManager) {\n      this._keyManager.withVerticalOrientation(value === 'vertical');\n    }\n  }\n  private _orientation: StepperOrientation = 'horizontal';\n\n  ngAfterContentInit() {\n    this._steps.changes\n      .pipe(startWith(this._steps), takeUntil(this._destroyed))\n      .subscribe((steps: QueryList<CdkStep>) => {\n        this.steps.reset(steps.filter(step => step._stepper === this));\n        this.steps.forEach((step, index) => step.index.set(index));\n        this.steps.notifyOnChanges();\n      });\n  }\n\n  ngAfterViewInit() {\n    // If the step headers are defined outside of the `ngFor` that renders the steps, like in the\n    // Material stepper, they won't appear in the `QueryList` in the same order as they're\n    // rendered in the DOM which will lead to incorrect keyboard navigation. We need to sort\n    // them manually to ensure that they're correct. Alternatively, we can change the Material\n    // template to inline the headers in the `ngFor`, but that'll result in a lot of\n    // code duplication. See #23539.\n    this._stepHeader.changes\n      .pipe(startWith(this._stepHeader), takeUntil(this._destroyed))\n      .subscribe((headers: QueryList<CdkStepHeader>) => {\n        this._sortedHeaders.reset(\n          headers.toArray().sort((a, b) => {\n            const documentPosition = a._elementRef.nativeElement.compareDocumentPosition(\n              b._elementRef.nativeElement,\n            );\n\n            // `compareDocumentPosition` returns a bitmask so we have to use a bitwise operator.\n            // https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition\n            // tslint:disable-next-line:no-bitwise\n            return documentPosition & Node.DOCUMENT_POSITION_FOLLOWING ? -1 : 1;\n          }),\n        );\n        this._sortedHeaders.notifyOnChanges();\n      });\n\n    // Note that while the step headers are content children by default, any components that\n    // extend this one might have them as view children. We initialize the keyboard handling in\n    // AfterViewInit so we're guaranteed for both view and content children to be defined.\n    this._keyManager = new FocusKeyManager<FocusableOption>(this._sortedHeaders)\n      .withWrap()\n      .withHomeAndEnd()\n      .withVerticalOrientation(this._orientation === 'vertical');\n\n    // The selected index may have changed between when the component was created and when the\n    // key manager was initialized. Use `updateActiveItem` so it's correct, but it doesn't steal\n    // away focus from the user.\n    this._keyManager.updateActiveItem(this.selectedIndex);\n\n    (this._dir ? (this._dir.change as Observable<Direction>) : observableOf<Direction>())\n      .pipe(startWith(this._layoutDirection()), takeUntil(this._destroyed))\n      .subscribe(direction => this._keyManager?.withHorizontalOrientation(direction));\n\n    this._keyManager.updateActiveItem(this.selectedIndex);\n\n    // No need to `takeUntil` here, because we're the ones destroying `steps`.\n    this.steps.changes.subscribe(() => {\n      if (!this.selected) {\n        this._selectedIndex.set(Math.max(this.selectedIndex - 1, 0));\n      }\n    });\n\n    // The logic which asserts that the selected index is within bounds doesn't run before the\n    // steps are initialized, because we don't how many steps there are yet so we may have an\n    // invalid index on init. If that's the case, auto-correct to the default so we don't throw.\n    if (!this._isValidIndex(this.selectedIndex)) {\n      this._selectedIndex.set(0);\n    }\n\n    // For linear step and selected index is greater than zero,\n    // set all the previous steps to interacted so that we can navigate to previous steps.\n    if (this.linear && this.selectedIndex > 0) {\n      const visitedSteps = this.steps.toArray().slice(0, this._selectedIndex());\n\n      for (const step of visitedSteps) {\n        step._markAsInteracted();\n      }\n    }\n  }\n\n  ngOnDestroy() {\n    this._keyManager?.destroy();\n    this.steps.destroy();\n    this._sortedHeaders.destroy();\n    this._destroyed.next();\n    this._destroyed.complete();\n  }\n\n  /** Selects and focuses the next step in list. */\n  next(): void {\n    this.selectedIndex = Math.min(this._selectedIndex() + 1, this.steps.length - 1);\n  }\n\n  /** Selects and focuses the previous step in list. */\n  previous(): void {\n    this.selectedIndex = Math.max(this._selectedIndex() - 1, 0);\n  }\n\n  /** Resets the stepper to its initial state. Note that this includes clearing form data. */\n  reset(): void {\n    this._updateSelectedItemIndex(0);\n    this.steps.forEach(step => step.reset());\n    this._stateChanged();\n  }\n\n  /** Returns a unique id for each step label element. */\n  _getStepLabelId(i: number): string {\n    return `${this._groupId}-label-${i}`;\n  }\n\n  /** Returns unique id for each step content element. */\n  _getStepContentId(i: number): string {\n    return `${this._groupId}-content-${i}`;\n  }\n\n  /** Marks the component to be change detected. */\n  _stateChanged() {\n    this._changeDetectorRef.markForCheck();\n  }\n\n  /** Returns position state of the step with the given index. */\n  _getAnimationDirection(index: number): StepContentPositionState {\n    const position = index - this._selectedIndex();\n    if (position < 0) {\n      return this._layoutDirection() === 'rtl' ? 'next' : 'previous';\n    } else if (position > 0) {\n      return this._layoutDirection() === 'rtl' ? 'previous' : 'next';\n    }\n    return 'current';\n  }\n\n  /** Returns the index of the currently-focused step header. */\n  _getFocusIndex(): number | null {\n    return this._keyManager ? this._keyManager.activeItemIndex : this._selectedIndex();\n  }\n\n  private _updateSelectedItemIndex(newIndex: number): void {\n    const stepsArray = this.steps.toArray();\n    const selectedIndex = this._selectedIndex();\n\n    this.selectionChange.emit({\n      selectedIndex: newIndex,\n      previouslySelectedIndex: selectedIndex,\n      selectedStep: stepsArray[newIndex],\n      previouslySelectedStep: stepsArray[selectedIndex],\n    });\n\n    // If focus is inside the stepper, move it to the next header, otherwise it may become\n    // lost when the active step content is hidden. We can't be more granular with the check\n    // (e.g. checking whether focus is inside the active step), because we don't have a\n    // reference to the elements that are rendering out the content.\n    if (this._keyManager) {\n      this._containsFocus()\n        ? this._keyManager.setActiveItem(newIndex)\n        : this._keyManager.updateActiveItem(newIndex);\n    }\n\n    this._selectedIndex.set(newIndex);\n    this.selectedIndexChange.emit(newIndex);\n    this._stateChanged();\n  }\n\n  _onKeydown(event: KeyboardEvent) {\n    const hasModifier = hasModifierKey(event);\n    const keyCode = event.keyCode;\n    const manager = this._keyManager;\n\n    if (\n      manager?.activeItemIndex != null &&\n      !hasModifier &&\n      (keyCode === SPACE || keyCode === ENTER)\n    ) {\n      this.selectedIndex = manager.activeItemIndex;\n      event.preventDefault();\n    } else {\n      manager?.setFocusOrigin('keyboard').onKeydown(event);\n    }\n  }\n\n  private _anyControlsInvalidOrPending(index: number): boolean {\n    if (this.linear && index >= 0) {\n      return this.steps\n        .toArray()\n        .slice(0, index)\n        .some(step => {\n          const control = step.stepControl;\n          const isIncomplete = control\n            ? isInvalid(control) || isPending(control) || !step.interacted\n            : !step.completed;\n          return isIncomplete && !step.optional && !step._completedOverride();\n        });\n    }\n\n    return false;\n  }\n\n  private _layoutDirection(): Direction {\n    return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr';\n  }\n\n  /** Checks whether the stepper contains the focused element. */\n  private _containsFocus(): boolean {\n    const stepperElement = this._elementRef.nativeElement;\n    const focusedElement = _getFocusedElementPierceShadowDom();\n    return stepperElement === focusedElement || stepperElement.contains(focusedElement);\n  }\n\n  /** Checks whether the passed-in index is a valid step index. */\n  private _isValidIndex(index: number): boolean {\n    return index > -1 && (!this.steps || index < this.steps.length);\n  }\n}\n\nfunction isField(value: StepControl): value is Field<unknown> {\n  return typeof value === 'function';\n}\n\nfunction isValid(control: StepControl): boolean {\n  return isField(control) ? control().valid() : control.valid;\n}\n\nfunction isInvalid(control: StepControl): boolean {\n  // Note: it's a bit redundant to have both `isValid` and `isInvalid`. We need both, because\n  // some internal apps mock out `invalid` specifically so `!valid` won't hit the mock.\n  return isField(control) ? control().invalid() : control.invalid;\n}\n\nfunction isPending(control: StepControl): boolean {\n  return isField(control) ? control().pending() : control.pending;\n}\n\nfunction reset(control: StepControl): void {\n  if (isField(control)) {\n    control().reset();\n  } else {\n    control.reset();\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.dev/license\n */\n\nimport {Directive, Input, inject} from '@angular/core';\n\nimport {CdkStepper} from './stepper';\n\n/** Button that moves to the next step in a stepper workflow. */\n@Directive({\n  selector: 'button[cdkStepperNext]',\n  host: {\n    '[type]': 'type',\n    '(click)': '_stepper.next()',\n  },\n})\nexport class CdkStepperNext {\n  _stepper = inject(CdkStepper);\n\n  /** Type of the next button. Defaults to \"submit\" if not specified. */\n  @Input() type: string = 'submit';\n}\n\n/** Button that moves to the previous step in a stepper workflow. */\n@Directive({\n  selector: 'button[cdkStepperPrevious]',\n  host: {\n    '[type]': 'type',\n    '(click)': '_stepper.previous()',\n  },\n})\nexport class CdkStepperPrevious {\n  _stepper = inject(CdkStepper);\n\n  /** Type of the previous button. Defaults to \"button\" if not specified. */\n  @Input() type: string = 'button';\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.dev/license\n */\n\nimport {NgModule} from '@angular/core';\nimport {CdkStepper, CdkStep} from './stepper';\nimport {CdkStepLabel} from './step-label';\nimport {CdkStepperNext, CdkStepperPrevious} from './stepper-button';\nimport {CdkStepHeader} from './step-header';\nimport {BidiModule} from '../bidi';\n\n@NgModule({\n  imports: [\n    BidiModule,\n    CdkStep,\n    CdkStepper,\n    CdkStepHeader,\n    CdkStepLabel,\n    CdkStepperNext,\n    CdkStepperPrevious,\n  ],\n  exports: [CdkStep, CdkStepper, CdkStepHeader, CdkStepLabel, CdkStepperNext, CdkStepperPrevious],\n})\nexport class CdkStepperModule 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