@angular/material
Version:
Angular Material
121 lines • 17.5 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 { TemplatePortal } from '@angular/cdk/portal';
import { ChangeDetectionStrategy, Component, ContentChild, Input, TemplateRef, ViewChild, ViewContainerRef, ViewEncapsulation, InjectionToken, Inject, Optional, } from '@angular/core';
import { mixinDisabled } from '@angular/material/core';
import { Subject } from 'rxjs';
import { MAT_TAB_CONTENT } from './tab-content';
import { MAT_TAB_LABEL, MatTabLabel, MAT_TAB } from './tab-label';
import * as i0 from "@angular/core";
// Boilerplate for applying mixins to MatTab.
/** @docs-private */
const _MatTabBase = mixinDisabled(class {
});
/**
* Used to provide a tab group to a tab without causing a circular dependency.
* @docs-private
*/
export const MAT_TAB_GROUP = new InjectionToken('MAT_TAB_GROUP');
export class MatTab extends _MatTabBase {
constructor(_viewContainerRef, _closestTabGroup) {
super();
this._viewContainerRef = _viewContainerRef;
this._closestTabGroup = _closestTabGroup;
/** Plain text label for the tab, used when there is no template label. */
this.textLabel = '';
/** Portal that will be the hosted content of the tab */
this._contentPortal = null;
/** Emits whenever the internal state of the tab changes. */
this._stateChanges = new Subject();
/**
* The relatively indexed position where 0 represents the center, negative is left, and positive
* represents the right.
*/
this.position = null;
/**
* The initial relatively index origin of the tab if it was created and selected after there
* was already a selected tab. Provides context of what position the tab should originate from.
*/
this.origin = null;
/**
* Whether the tab is currently active.
*/
this.isActive = false;
}
/** Content for the tab label given by `<ng-template mat-tab-label>`. */
get templateLabel() {
return this._templateLabel;
}
set templateLabel(value) {
this._setTemplateLabelInput(value);
}
/** @docs-private */
get content() {
return this._contentPortal;
}
ngOnChanges(changes) {
if (changes.hasOwnProperty('textLabel') || changes.hasOwnProperty('disabled')) {
this._stateChanges.next();
}
}
ngOnDestroy() {
this._stateChanges.complete();
}
ngOnInit() {
this._contentPortal = new TemplatePortal(this._explicitContent || this._implicitContent, this._viewContainerRef);
}
/**
* This has been extracted to a util because of TS 4 and VE.
* View Engine doesn't support property rename inheritance.
* TS 4.0 doesn't allow properties to override accessors or vice-versa.
* @docs-private
*/
_setTemplateLabelInput(value) {
// Only update the label if the query managed to find one. This works around an issue where a
// user may have manually set `templateLabel` during creation mode, which would then get
// clobbered by `undefined` when the query resolves. Also note that we check that the closest
// tab matches the current one so that we don't pick up labels from nested tabs.
if (value && value._closestTab === this) {
this._templateLabel = value;
}
}
}
MatTab.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.3.0", ngImport: i0, type: MatTab, deps: [{ token: i0.ViewContainerRef }, { token: MAT_TAB_GROUP, optional: true }], target: i0.ɵɵFactoryTarget.Component });
MatTab.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "13.3.0", type: MatTab, selector: "mat-tab", inputs: { disabled: "disabled", textLabel: ["label", "textLabel"], ariaLabel: ["aria-label", "ariaLabel"], ariaLabelledby: ["aria-labelledby", "ariaLabelledby"], labelClass: "labelClass", bodyClass: "bodyClass" }, providers: [{ provide: MAT_TAB, useExisting: MatTab }], queries: [{ propertyName: "templateLabel", first: true, predicate: MAT_TAB_LABEL, descendants: true }, { propertyName: "_explicitContent", first: true, predicate: MAT_TAB_CONTENT, descendants: true, read: TemplateRef, static: true }], viewQueries: [{ propertyName: "_implicitContent", first: true, predicate: TemplateRef, descendants: true, static: true }], exportAs: ["matTab"], usesInheritance: true, usesOnChanges: true, ngImport: i0, template: "<!-- Create a template for the content of the <mat-tab> so that we can grab a reference to this\n TemplateRef and use it in a Portal to render the tab content in the appropriate place in the\n tab-group. -->\n<ng-template><ng-content></ng-content></ng-template>\n", changeDetection: i0.ChangeDetectionStrategy.Default, encapsulation: i0.ViewEncapsulation.None });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.3.0", ngImport: i0, type: MatTab, decorators: [{
type: Component,
args: [{ selector: 'mat-tab', inputs: ['disabled'], changeDetection: ChangeDetectionStrategy.Default, encapsulation: ViewEncapsulation.None, exportAs: 'matTab', providers: [{ provide: MAT_TAB, useExisting: MatTab }], template: "<!-- Create a template for the content of the <mat-tab> so that we can grab a reference to this\n TemplateRef and use it in a Portal to render the tab content in the appropriate place in the\n tab-group. -->\n<ng-template><ng-content></ng-content></ng-template>\n" }]
}], ctorParameters: function () { return [{ type: i0.ViewContainerRef }, { type: undefined, decorators: [{
type: Inject,
args: [MAT_TAB_GROUP]
}, {
type: Optional
}] }]; }, propDecorators: { templateLabel: [{
type: ContentChild,
args: [MAT_TAB_LABEL]
}], _explicitContent: [{
type: ContentChild,
args: [MAT_TAB_CONTENT, { read: TemplateRef, static: true }]
}], _implicitContent: [{
type: ViewChild,
args: [TemplateRef, { static: true }]
}], textLabel: [{
type: Input,
args: ['label']
}], ariaLabel: [{
type: Input,
args: ['aria-label']
}], ariaLabelledby: [{
type: Input,
args: ['aria-labelledby']
}], labelClass: [{
type: Input
}], bodyClass: [{
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 {TemplatePortal} from '@angular/cdk/portal';\nimport {\n  ChangeDetectionStrategy,\n  Component,\n  ContentChild,\n  Input,\n  OnChanges,\n  OnDestroy,\n  OnInit,\n  SimpleChanges,\n  TemplateRef,\n  ViewChild,\n  ViewContainerRef,\n  ViewEncapsulation,\n  InjectionToken,\n  Inject,\n  Optional,\n} from '@angular/core';\nimport {CanDisable, mixinDisabled} from '@angular/material/core';\nimport {Subject} from 'rxjs';\nimport {MAT_TAB_CONTENT} from './tab-content';\nimport {MAT_TAB_LABEL, MatTabLabel, MAT_TAB} from './tab-label';\n\n// Boilerplate for applying mixins to MatTab.\n/** @docs-private */\nconst _MatTabBase = mixinDisabled(class {});\n\n/**\n * Used to provide a tab group to a tab without causing a circular dependency.\n * @docs-private\n */\nexport const MAT_TAB_GROUP = new InjectionToken<any>('MAT_TAB_GROUP');\n\n@Component({\n  selector: 'mat-tab',\n  templateUrl: 'tab.html',\n  inputs: ['disabled'],\n  // tslint:disable-next-line:validate-decorators\n  changeDetection: ChangeDetectionStrategy.Default,\n  encapsulation: ViewEncapsulation.None,\n  exportAs: 'matTab',\n  providers: [{provide: MAT_TAB, useExisting: MatTab}],\n})\nexport class MatTab extends _MatTabBase implements OnInit, CanDisable, OnChanges, OnDestroy {\n  /** Content for the tab label given by `<ng-template mat-tab-label>`. */\n  @ContentChild(MAT_TAB_LABEL)\n  get templateLabel(): MatTabLabel {\n    return this._templateLabel;\n  }\n  set templateLabel(value: MatTabLabel) {\n    this._setTemplateLabelInput(value);\n  }\n  protected _templateLabel: MatTabLabel;\n\n  /**\n   * Template provided in the tab content that will be used if present, used to enable lazy-loading\n   */\n  @ContentChild(MAT_TAB_CONTENT, {read: TemplateRef, static: true})\n  _explicitContent: TemplateRef<any>;\n\n  /** Template inside the MatTab view that contains an `<ng-content>`. */\n  @ViewChild(TemplateRef, {static: true}) _implicitContent: TemplateRef<any>;\n\n  /** Plain text label for the tab, used when there is no template label. */\n  @Input('label') textLabel: 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  /**\n   * Classes to be passed to the tab label inside the mat-tab-header container.\n   * Supports string and string array values, same as `ngClass`.\n   */\n  @Input() labelClass: string | string[];\n\n  /**\n   * Classes to be passed to the tab mat-tab-body container.\n   * Supports string and string array values, same as `ngClass`.\n   */\n  @Input() bodyClass: string | string[];\n\n  /** Portal that will be the hosted content of the tab */\n  private _contentPortal: TemplatePortal | null = null;\n\n  /** @docs-private */\n  get content(): TemplatePortal | null {\n    return this._contentPortal;\n  }\n\n  /** Emits whenever the internal state of the tab changes. */\n  readonly _stateChanges = new Subject<void>();\n\n  /**\n   * The relatively indexed position where 0 represents the center, negative is left, and positive\n   * represents the right.\n   */\n  position: number | null = null;\n\n  /**\n   * The initial relatively index origin of the tab if it was created and selected after there\n   * was already a selected tab. Provides context of what position the tab should originate from.\n   */\n  origin: number | null = null;\n\n  /**\n   * Whether the tab is currently active.\n   */\n  isActive = false;\n\n  constructor(\n    private _viewContainerRef: ViewContainerRef,\n    @Inject(MAT_TAB_GROUP) @Optional() public _closestTabGroup: any,\n  ) {\n    super();\n  }\n\n  ngOnChanges(changes: SimpleChanges): void {\n    if (changes.hasOwnProperty('textLabel') || changes.hasOwnProperty('disabled')) {\n      this._stateChanges.next();\n    }\n  }\n\n  ngOnDestroy(): void {\n    this._stateChanges.complete();\n  }\n\n  ngOnInit(): void {\n    this._contentPortal = new TemplatePortal(\n      this._explicitContent || this._implicitContent,\n      this._viewContainerRef,\n    );\n  }\n\n  /**\n   * This has been extracted to a util because of TS 4 and VE.\n   * View Engine doesn't support property rename inheritance.\n   * TS 4.0 doesn't allow properties to override accessors or vice-versa.\n   * @docs-private\n   */\n  protected _setTemplateLabelInput(value: MatTabLabel | undefined) {\n    // Only update the label if the query managed to find one. This works around an issue where a\n    // user may have manually set `templateLabel` during creation mode, which would then get\n    // clobbered by `undefined` when the query resolves. Also note that we check that the closest\n    // tab matches the current one so that we don't pick up labels from nested tabs.\n    if (value && value._closestTab === this) {\n      this._templateLabel = value;\n    }\n  }\n}\n","<!-- Create a template for the content of the <mat-tab> so that we can grab a reference to this\n    TemplateRef and use it in a Portal to render the tab content in the appropriate place in the\n    tab-group. -->\n<ng-template><ng-content></ng-content></ng-template>\n"]}