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@angular/material

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/** * @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 { FocusMonitor } from '@angular/cdk/a11y'; import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ElementRef, Input, ViewEncapsulation, } from '@angular/core'; import { MatStepLabel } from './step-label'; import { MatStepperIntl } from './stepper-intl'; import { CdkStepHeader } from '@angular/cdk/stepper'; import { mixinColor } from '@angular/material/core'; // Boilerplate for applying mixins to MatStepHeader. /** @docs-private */ class MatStepHeaderBase extends CdkStepHeader { constructor(elementRef) { super(elementRef); } } const _MatStepHeaderMixinBase = mixinColor(MatStepHeaderBase, 'primary'); export class MatStepHeader extends _MatStepHeaderMixinBase { constructor(_intl, _focusMonitor, _elementRef, changeDetectorRef) { super(_elementRef); this._intl = _intl; this._focusMonitor = _focusMonitor; this._intlSubscription = _intl.changes.subscribe(() => changeDetectorRef.markForCheck()); } ngAfterViewInit() { this._focusMonitor.monitor(this._elementRef, true); } ngOnDestroy() { this._intlSubscription.unsubscribe(); this._focusMonitor.stopMonitoring(this._elementRef); } /** Focuses the step header. */ focus() { this._focusMonitor.focusVia(this._elementRef, 'program'); } /** Returns string label of given step if it is a text label. */ _stringLabel() { return this.label instanceof MatStepLabel ? null : this.label; } /** Returns MatStepLabel if the label of given step is a template label. */ _templateLabel() { return this.label instanceof MatStepLabel ? this.label : null; } /** Returns the host HTML element. */ _getHostElement() { return this._elementRef.nativeElement; } /** Template context variables that are exposed to the `matStepperIcon` instances. */ _getIconContext() { return { index: this.index, active: this.active, optional: this.optional }; } _getDefaultTextForState(state) { if (state == 'number') { return `${this.index + 1}`; } if (state == 'edit') { return 'create'; } if (state == 'error') { return 'warning'; } return state; } } MatStepHeader.decorators = [ { type: Component, args: [{ selector: 'mat-step-header', template: "<div class=\"mat-step-header-ripple\" matRipple\n [matRippleTrigger]=\"_getHostElement()\"\n [matRippleDisabled]=\"disableRipple\"></div>\n\n<div class=\"mat-step-icon-state-{{state}} mat-step-icon\" [class.mat-step-icon-selected]=\"selected\">\n <div class=\"mat-step-icon-content\" [ngSwitch]=\"!!(iconOverrides && iconOverrides[state])\">\n <ng-container\n *ngSwitchCase=\"true\"\n [ngTemplateOutlet]=\"iconOverrides[state]\"\n [ngTemplateOutletContext]=\"_getIconContext()\"></ng-container>\n <ng-container *ngSwitchDefault [ngSwitch]=\"state\">\n <span *ngSwitchCase=\"'number'\">{{_getDefaultTextForState(state)}}</span>\n <mat-icon *ngSwitchDefault>{{_getDefaultTextForState(state)}}</mat-icon>\n </ng-container>\n </div>\n</div>\n<div class=\"mat-step-label\"\n [class.mat-step-label-active]=\"active\"\n [class.mat-step-label-selected]=\"selected\"\n [class.mat-step-label-error]=\"state == 'error'\">\n <!-- If there is a label template, use it. -->\n <div class=\"mat-step-text-label\" *ngIf=\"_templateLabel()\">\n <ng-container [ngTemplateOutlet]=\"_templateLabel()!.template\"></ng-container>\n </div>\n <!-- If there is no label template, fall back to the text label. -->\n <div class=\"mat-step-text-label\" *ngIf=\"_stringLabel()\">{{label}}</div>\n\n <div class=\"mat-step-optional\" *ngIf=\"optional && state != 'error'\">{{_intl.optionalLabel}}</div>\n <div class=\"mat-step-sub-label-error\" *ngIf=\"state == 'error'\">{{errorMessage}}</div>\n</div>\n\n", inputs: ['color'], host: { 'class': 'mat-step-header mat-focus-indicator', 'role': 'tab', }, encapsulation: ViewEncapsulation.None, changeDetection: ChangeDetectionStrategy.OnPush, styles: [".mat-step-header{overflow:hidden;outline:none;cursor:pointer;position:relative;box-sizing:content-box;-webkit-tap-highlight-color:transparent}.mat-step-optional,.mat-step-sub-label-error{font-size:12px}.mat-step-icon{border-radius:50%;height:24px;width:24px;flex-shrink:0;position:relative}.mat-step-icon-content,.mat-step-icon .mat-icon{position:absolute;top:50%;left:50%;transform:translate(-50%, -50%)}.mat-step-icon .mat-icon{font-size:16px;height:16px;width:16px}.mat-step-icon-state-error .mat-icon{font-size:24px;height:24px;width:24px}.mat-step-label{display:inline-block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:50px;vertical-align:middle}.mat-step-text-label{text-overflow:ellipsis;overflow:hidden}.mat-step-header .mat-step-header-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}\n"] },] } ]; MatStepHeader.ctorParameters = () => [ { type: MatStepperIntl }, { type: FocusMonitor }, { type: ElementRef }, { type: ChangeDetectorRef } ]; MatStepHeader.propDecorators = { state: [{ type: Input }], label: [{ type: Input }], errorMessage: [{ type: Input }], iconOverrides: [{ type: Input }], index: [{ type: Input }], selected: [{ type: Input }], active: [{ type: Input }], optional: [{ type: Input }], disableRipple: [{ type: Input }] }; //# 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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 {FocusMonitor} from '@angular/cdk/a11y';\nimport {\n  ChangeDetectionStrategy,\n  ChangeDetectorRef,\n  Component,\n  ElementRef,\n  Input,\n  OnDestroy,\n  ViewEncapsulation,\n  TemplateRef,\n  AfterViewInit,\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';\nimport {CanColorCtor, mixinColor, CanColor} from '@angular/material/core';\n\n\n// Boilerplate for applying mixins to MatStepHeader.\n/** @docs-private */\nclass MatStepHeaderBase extends CdkStepHeader {\n  constructor(elementRef: ElementRef) {\n    super(elementRef);\n  }\n}\n\nconst _MatStepHeaderMixinBase: CanColorCtor & typeof MatStepHeaderBase =\n    mixinColor(MatStepHeaderBase, 'primary');\n\n@Component({\n  selector: 'mat-step-header',\n  templateUrl: 'step-header.html',\n  styleUrls: ['step-header.css'],\n  inputs: ['color'],\n  host: {\n    'class': 'mat-step-header mat-focus-indicator',\n    'role': 'tab',\n  },\n  encapsulation: ViewEncapsulation.None,\n  changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class MatStepHeader extends _MatStepHeaderMixinBase implements AfterViewInit, OnDestroy,\n  CanColor {\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    this._intlSubscription = _intl.changes.subscribe(() => changeDetectorRef.markForCheck());\n  }\n\n  ngAfterViewInit() {\n    this._focusMonitor.monitor(this._elementRef, true);\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"]}