refactor(material/paginator): switch to inject function (#30253)

Switches `mat-paginator` to use the `inject` function now that we've cleaned up the internal usages.

Author: crisbeto

src/material/paginator/paginator.ts

@@ -11,12 +11,10 @@ import {
   ChangeDetectorRef,
   Component,
   EventEmitter,
-  Inject,
   InjectionToken,
   Input,
   OnDestroy,
   OnInit,
-  Optional,
   Output,
   ViewEncapsulation,
   booleanAttribute,
@@ -111,6 +109,9 @@ export const MAT_PAGINATOR_DEFAULT_OPTIONS = new InjectionToken<MatPaginatorDefa
   imports: [MatFormField, MatSelect, MatOption, MatIconButton, MatTooltip],
 })
 export class MatPaginator implements OnInit, OnDestroy {
+  _intl = inject(MatPaginatorIntl);
+  private _changeDetectorRef = inject(ChangeDetectorRef);
+
   /** If set, styles the "page size" form field with the designated style. */
   _formFieldAppearance?: MatFormFieldAppearance;
 
@@ -198,11 +199,15 @@ export class MatPaginator implements OnInit, OnDestroy {
   /** Emits when the paginator is initialized. */
   initialized: Observable<void> = this._initializedStream;
 
-  constructor(
-    public _intl: MatPaginatorIntl,
-    private _changeDetectorRef: ChangeDetectorRef,
-    @Optional() @Inject(MAT_PAGINATOR_DEFAULT_OPTIONS) defaults?: MatPaginatorDefaultOptions,
-  ) {
+  /** Inserted by Angular inject() migration for backwards compatibility */
+  constructor(...args: unknown[]);
+
+  constructor() {
+    const _intl = this._intl;
+    const defaults = inject<MatPaginatorDefaultOptions>(MAT_PAGINATOR_DEFAULT_OPTIONS, {
+      optional: true,
+    });
+
     this._intlChanges = _intl.changes.subscribe(() => this._changeDetectorRef.markForCheck());
 
     if (defaults) {

tools/public_api_guard/material/paginator.md

@@ -4,7 +4,6 @@
 
 ```ts
 
-import { ChangeDetectorRef } from '@angular/core';
 import { EventEmitter } from '@angular/core';
 import * as i0 from '@angular/core';
 import * as i1 from '@angular/material/button';
@@ -34,7 +33,7 @@ export function MAT_PAGINATOR_INTL_PROVIDER_FACTORY(parentIntl: MatPaginatorIntl
 
 // @public
 export class MatPaginator implements OnInit, OnDestroy {
-    constructor(_intl: MatPaginatorIntl, _changeDetectorRef: ChangeDetectorRef, defaults?: MatPaginatorDefaultOptions);
+    constructor(...args: unknown[]);
     protected _buttonClicked(targetIndex: number, isDisabled: boolean): void;
     _changePageSize(pageSize: number): void;
     color: ThemePalette;
@@ -85,7 +84,7 @@ export class MatPaginator implements OnInit, OnDestroy {
     // (undocumented)
     static ɵcmp: i0.ɵɵComponentDeclaration<MatPaginator, "mat-paginator", ["matPaginator"], { "color": { "alias": "color"; "required": false; }; "pageIndex": { "alias": "pageIndex"; "required": false; }; "length": { "alias": "length"; "required": false; }; "pageSize": { "alias": "pageSize"; "required": false; }; "pageSizeOptions": { "alias": "pageSizeOptions"; "required": false; }; "hidePageSize": { "alias": "hidePageSize"; "required": false; }; "showFirstLastButtons": { "alias": "showFirstLastButtons"; "required": false; }; "selectConfig": { "alias": "selectConfig"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; }, { "page": "page"; }, never, never, true, never>;
     // (undocumented)
-    static ɵfac: i0.ɵɵFactoryDeclaration<MatPaginator, [null, null, { optional: true; }]>;
+    static ɵfac: i0.ɵɵFactoryDeclaration<MatPaginator, never>;
 }
 
 // @public