@angular/material
Version:
Angular Material
109 lines • 15 kB
JavaScript
/**
* @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(origin, options) {
if (origin) {
this._focusMonitor.focusVia(this._elementRef, origin, options);
}
else {
this._elementRef.nativeElement.focus(options);
}
}
/** 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 mat-focus-indicator\" 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',
'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, FocusOrigin} 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',\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(origin?: FocusOrigin, options?: FocusOptions) {\n    if (origin) {\n      this._focusMonitor.focusVia(this._elementRef, origin, options);\n    } else {\n      this._elementRef.nativeElement.focus(options);\n    }\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"]}