fix(material/slide-toggle): breaking changes for v20

Makes the breaking changes in `material/slide-toggle` for v20.

BREAKING CHANGE:
* `MAT_SLIDE_TOGGLE_REQUIRED_VALIDATOR` has been removed.
* `MAT_SLIDE_TOGGLE_VALUE_ACCESSOR` has been removed.
* `MatSlideToggleRequiredValidator` has been removed.
* `_MatSlideToggleRequiredValidatorModule` has been removed.

Author: crisbeto

src/components-examples/material/slide-toggle/slide-toggle-forms/slide-toggle-forms-example.ts

@@ -1,10 +1,7 @@
 import {Component, inject} from '@angular/core';
 import {FormBuilder, FormGroup, Validators, FormsModule, ReactiveFormsModule} from '@angular/forms';
 import {MatButtonModule} from '@angular/material/button';
-import {
-  MatSlideToggleModule,
-  _MatSlideToggleRequiredValidatorModule,
-} from '@angular/material/slide-toggle';
+import {MatSlideToggleModule} from '@angular/material/slide-toggle';
 
 /**
  * @title Slide-toggle with forms
@@ -13,13 +10,7 @@ import {
   selector: 'slide-toggle-forms-example',
   templateUrl: './slide-toggle-forms-example.html',
   styleUrl: './slide-toggle-forms-example.css',
-  imports: [
-    MatSlideToggleModule,
-    FormsModule,
-    _MatSlideToggleRequiredValidatorModule,
-    MatButtonModule,
-    ReactiveFormsModule,
-  ],
+  imports: [MatSlideToggleModule, FormsModule, MatButtonModule, ReactiveFormsModule],
 })
 export class SlideToggleFormsExample {
   private _formBuilder = inject(FormBuilder);

src/material/slide-toggle/module.ts

@@ -9,17 +9,6 @@
 import {NgModule} from '@angular/core';
 import {MatCommonModule} from '@angular/material/core';
 import {MatSlideToggle} from './slide-toggle';
-import {MatSlideToggleRequiredValidator} from './slide-toggle-required-validator';
-
-/**
- * @deprecated No longer used, `MatSlideToggle` implements required validation directly.
- * @breaking-change 19.0.0
- */
-@NgModule({
-  imports: [MatSlideToggleRequiredValidator],
-  exports: [MatSlideToggleRequiredValidator],
-})
-export class _MatSlideToggleRequiredValidatorModule {}
 
 @NgModule({
   imports: [MatSlideToggle, MatCommonModule],

src/material/slide-toggle/public-api.ts

@@ -9,4 +9,3 @@
 export * from './slide-toggle';
 export * from './slide-toggle-config';
 export * from './module';
-export * from './slide-toggle-required-validator';

src/material/slide-toggle/slide-toggle-required-validator.ts

@@ -43,16 +43,6 @@ import {
 import {_MatInternalFormField, _StructuralStylesLoader, MatRipple} from '@angular/material/core';
 import {_CdkPrivateStyleLoader} from '@angular/cdk/private';
 
-/**
- * @deprecated Will stop being exported.
- * @breaking-change 19.0.0
- */
-export const MAT_SLIDE_TOGGLE_VALUE_ACCESSOR = {
-  provide: NG_VALUE_ACCESSOR,
-  useExisting: forwardRef(() => MatSlideToggle),
-  multi: true,
-};
-
 /** Change event object emitted by a slide toggle. */
 export class MatSlideToggleChange {
   constructor(
@@ -84,7 +74,11 @@ export class MatSlideToggleChange {
   encapsulation: ViewEncapsulation.None,
   changeDetection: ChangeDetectionStrategy.OnPush,
   providers: [
-    MAT_SLIDE_TOGGLE_VALUE_ACCESSOR,
+    {
+      provide: NG_VALUE_ACCESSOR,
+      useExisting: forwardRef(() => MatSlideToggle),
+      multi: true,
+    },
     {
       provide: NG_VALIDATORS,
       useExisting: MatSlideToggle,

src/material/slide-toggle/slide-toggle.ts

@@ -7,36 +7,23 @@
 import { AbstractControl } from '@angular/forms';
 import { AfterContentInit } from '@angular/core';
 import { ChangeDetectorRef } from '@angular/core';
-import { CheckboxRequiredValidator } from '@angular/forms';
 import { ControlValueAccessor } from '@angular/forms';
 import { ElementRef } from '@angular/core';
 import { EventEmitter } from '@angular/core';
 import { FocusMonitor } from '@angular/cdk/a11y';
 import * as i0 from '@angular/core';
-import * as i3 from '@angular/material/core';
+import * as i2 from '@angular/material/core';
 import { InjectionToken } from '@angular/core';
 import { OnChanges } from '@angular/core';
 import { OnDestroy } from '@angular/core';
-import { Provider } from '@angular/core';
 import { SimpleChanges } from '@angular/core';
 import { ThemePalette } from '@angular/material/core';
-import { Type } from '@angular/core';
 import { ValidationErrors } from '@angular/forms';
 import { Validator } from '@angular/forms';
 
 // @public
 export const MAT_SLIDE_TOGGLE_DEFAULT_OPTIONS: InjectionToken<MatSlideToggleDefaultOptions>;
 
-// @public @deprecated (undocumented)
-export const MAT_SLIDE_TOGGLE_REQUIRED_VALIDATOR: Provider;
-
-// @public @deprecated (undocumented)
-export const MAT_SLIDE_TOGGLE_VALUE_ACCESSOR: {
-    provide: InjectionToken<readonly ControlValueAccessor[]>;
-    useExisting: Type<any>;
-    multi: boolean;
-};
-
 // @public (undocumented)
 export class MatSlideToggle implements OnDestroy, AfterContentInit, OnChanges, ControlValueAccessor, Validator {
     constructor(...args: unknown[]);
@@ -131,25 +118,7 @@ export class MatSlideToggleModule {
     // (undocumented)
     static ɵinj: i0.ɵɵInjectorDeclaration<MatSlideToggleModule>;
     // (undocumented)
-    static ɵmod: i0.ɵɵNgModuleDeclaration<MatSlideToggleModule, never, [typeof i2.MatSlideToggle, typeof i3.MatCommonModule], [typeof i2.MatSlideToggle, typeof i3.MatCommonModule]>;
-}
-
-// @public @deprecated
-export class MatSlideToggleRequiredValidator extends CheckboxRequiredValidator {
-    // (undocumented)
-    static ɵdir: i0.ɵɵDirectiveDeclaration<MatSlideToggleRequiredValidator, "mat-slide-toggle[required][formControlName],             mat-slide-toggle[required][formControl], mat-slide-toggle[required][ngModel]", never, {}, {}, never, never, true, never>;
-    // (undocumented)
-    static ɵfac: i0.ɵɵFactoryDeclaration<MatSlideToggleRequiredValidator, never>;
-}
-
-// @public @deprecated (undocumented)
-export class _MatSlideToggleRequiredValidatorModule {
-    // (undocumented)
-    static ɵfac: i0.ɵɵFactoryDeclaration<_MatSlideToggleRequiredValidatorModule, never>;
-    // (undocumented)
-    static ɵinj: i0.ɵɵInjectorDeclaration<_MatSlideToggleRequiredValidatorModule>;
-    // (undocumented)
-    static ɵmod: i0.ɵɵNgModuleDeclaration<_MatSlideToggleRequiredValidatorModule, never, [typeof i1.MatSlideToggleRequiredValidator], [typeof i1.MatSlideToggleRequiredValidator]>;
+    static ɵmod: i0.ɵɵNgModuleDeclaration<MatSlideToggleModule, never, [typeof i1.MatSlideToggle, typeof i2.MatCommonModule], [typeof i1.MatSlideToggle, typeof i2.MatCommonModule]>;
 }
 
 // (No @packageDocumentation comment for this package)