103 lines
2.3 KiB
TypeScript
103 lines
2.3 KiB
TypeScript
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/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.dev/license
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*/
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import {Injectable, NgModule, OnDestroy} from '@angular/core';
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import {MatIconRegistry} from '@angular/material/icon';
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import {Observable, of as observableOf} from 'rxjs';
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type PublicApi<T> = {
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[K in keyof T]: T[K] extends (...x: any[]) => T ? (...x: any[]) => PublicApi<T> : T[K];
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};
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/**
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* A null icon registry that must be imported to allow disabling of custom
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* icons.
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*/
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@Injectable()
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export class FakeMatIconRegistry implements PublicApi<MatIconRegistry>, OnDestroy {
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addSvgIcon(): this {
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return this;
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}
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addSvgIconLiteral(): this {
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return this;
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}
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addSvgIconInNamespace(): this {
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return this;
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}
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addSvgIconLiteralInNamespace(): this {
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return this;
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}
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addSvgIconSet(): this {
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return this;
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}
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addSvgIconSetLiteral(): this {
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return this;
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}
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addSvgIconSetInNamespace(): this {
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return this;
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}
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addSvgIconSetLiteralInNamespace(): this {
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return this;
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}
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registerFontClassAlias(): this {
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return this;
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}
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classNameForFontAlias(alias: string): string {
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return alias;
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}
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getDefaultFontSetClass() {
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return ['material-icons'];
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}
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getSvgIconFromUrl(): Observable<SVGElement> {
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return observableOf(this._generateEmptySvg());
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}
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getNamedSvgIcon(): Observable<SVGElement> {
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return observableOf(this._generateEmptySvg());
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}
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setDefaultFontSetClass(): this {
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return this;
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}
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addSvgIconResolver(): this {
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return this;
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}
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ngOnDestroy() {}
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private _generateEmptySvg(): SVGElement {
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const emptySvg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
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emptySvg.classList.add('fake-testing-svg');
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// Emulate real icon characteristics from `MatIconRegistry` so size remains consistent in tests.
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emptySvg.setAttribute('fit', '');
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emptySvg.setAttribute('height', '100%');
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emptySvg.setAttribute('width', '100%');
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emptySvg.setAttribute('preserveAspectRatio', 'xMidYMid meet');
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emptySvg.setAttribute('focusable', 'false');
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return emptySvg;
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}
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}
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/** Import this module in tests to install the null icon registry. */
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@NgModule({
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providers: [{provide: MatIconRegistry, useClass: FakeMatIconRegistry}],
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})
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export class MatIconTestingModule {}
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