feat(material/timepicker): add option template

close #31209

Author: lekhmanrus

goldens/material/timepicker/index.api.md

@@ -56,6 +56,8 @@ export class MatTimepicker<D> implements OnDestroy, MatOptionParentComponent {
     readonly options: InputSignal<readonly MatTimepickerOption<D>[] | null>;
     // (undocumented)
     protected _options: Signal<readonly MatOption<any>[]>;
+    // (undocumented)
+    protected _optionTemplate: Signal<TemplateRef<MatTimepickerOption<D>> | undefined>;
     readonly panelId: string;
     // (undocumented)
     protected _panelTemplate: Signal<TemplateRef<unknown>>;
@@ -65,7 +67,7 @@ export class MatTimepicker<D> implements OnDestroy, MatOptionParentComponent {
     // (undocumented)
     protected _timeOptions: readonly MatTimepickerOption<D>[];
     // (undocumented)
-    static ɵcmp: i0.ɵɵComponentDeclaration<MatTimepicker<any>, "mat-timepicker", ["matTimepicker"], { "interval": { "alias": "interval"; "required": false; "isSignal": true; }; "options": { "alias": "options"; "required": false; "isSignal": true; }; "disableRipple": { "alias": "disableRipple"; "required": false; "isSignal": true; }; "ariaLabel": { "alias": "aria-label"; "required": false; "isSignal": true; }; "ariaLabelledby": { "alias": "aria-labelledby"; "required": false; "isSignal": true; }; }, { "selected": "selected"; "opened": "opened"; "closed": "closed"; }, never, never, true, never>;
+    static ɵcmp: i0.ɵɵComponentDeclaration<MatTimepicker<any>, "mat-timepicker", ["matTimepicker"], { "interval": { "alias": "interval"; "required": false; "isSignal": true; }; "options": { "alias": "options"; "required": false; "isSignal": true; }; "disableRipple": { "alias": "disableRipple"; "required": false; "isSignal": true; }; "ariaLabel": { "alias": "aria-label"; "required": false; "isSignal": true; }; "ariaLabelledby": { "alias": "aria-labelledby"; "required": false; "isSignal": true; }; }, { "selected": "selected"; "opened": "opened"; "closed": "closed"; }, ["_optionTemplate"], never, true, never>;
     // (undocumented)
     static ɵfac: i0.ɵɵFactoryDeclaration<MatTimepicker<any>, never>;
 }

src/components-examples/material/timepicker/index.ts

@@ -5,4 +5,5 @@ export {TimepickerValidationExample} from './timepicker-validation/timepicker-va
 export {TimepickerOptionsExample} from './timepicker-options/timepicker-options-example';
 export {TimepickerCustomIconExample} from './timepicker-custom-icon/timepicker-custom-icon-example';
 export {TimepickerLocaleExample} from './timepicker-locale/timepicker-locale-example';
+export {TimepickerOptionTemplateExample} from './timepicker-option-template/timepicker-option-template-example';
 export {TimepickerHarnessExample} from './timepicker-harness/timepicker-harness-example';

src/components-examples/material/timepicker/timepicker-option-template/timepicker-option-template-example.html

@@ -0,0 +1,13 @@
+<mat-form-field>
+  <mat-label>Pick a time</mat-label>
+  <input matInput [matTimepicker]="picker">
+  <mat-timepicker-toggle matIconSuffix [for]="picker"/>
+  <mat-timepicker #picker>
+    <ng-template let-option>
+      <mat-icon>
+        {{ (dateAdapter.compareTime(option.value, sunrise) > 0 && dateAdapter.compareTime(option.value, sunset) < 0) ? 'sunny' : 'bedtime' }}
+      </mat-icon>
+      {{ option.label }}
+    </ng-template>
+  </mat-timepicker>
+</mat-form-field>

src/components-examples/material/timepicker/timepicker-option-template/timepicker-option-template-example.ts

@@ -0,0 +1,27 @@
+import {ChangeDetectionStrategy, Component, inject} from '@angular/core';
+import {MatTimepickerModule} from '@angular/material/timepicker';
+import {MatIcon} from '@angular/material/icon';
+import {MatInputModule} from '@angular/material/input';
+import {MatFormFieldModule} from '@angular/material/form-field';
+import {DateAdapter, provideNativeDateAdapter} from '@angular/material/core';
+
+/** @title Timepicker with option template. */
+@Component({
+  selector: 'timepicker-option-template-example',
+  templateUrl: 'timepicker-option-template-example.html',
+  providers: [provideNativeDateAdapter()],
+  imports: [MatFormFieldModule, MatIcon, MatInputModule, MatTimepickerModule],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class TimepickerOptionTemplateExample {
+  readonly dateAdapter = inject<DateAdapter<Date>>(DateAdapter);
+  readonly sunrise: Date;
+  readonly sunset: Date;
+
+  constructor() {
+    this.sunrise = new Date();
+    this.sunrise.setHours(7, 0, 0);
+    this.sunset = new Date();
+    this.sunset.setHours(17, 30, 0);
+  }
+}

src/material/slider/_slider-theme.scss

@@ -79,7 +79,7 @@
     @include token-utils.batch-create-token-values($tokens, _define-overrides());
 }
 
-/// Outputs all (base, color, typography, and density) theme styles for the mat-option.
+/// Outputs all (base, color, typography, and density) theme styles for the mat-slider.
 /// @param {Map} $theme The theme to generate styles for.
 /// @param {String} $color-variant The color variant to use for the component (M3 only)
 @mixin theme($theme, $color-variant: null) {

src/material/timepicker/BUILD.bazel

@@ -77,6 +77,7 @@ ng_project(
         ":timepicker_css",
     ],
     deps = [
+        "//:node_modules/@angular/common",
         "//:node_modules/@angular/core",
         "//:node_modules/@angular/forms",
         "//:node_modules/rxjs",

src/material/timepicker/timepicker.html

@@ -1,3 +1,5 @@
+<ng-template #defaultOptionTemplate let-option>{{ option.label }}</ng-template>
+
 <ng-template #panelTemplate>
   <div
     role="listbox"
@@ -11,7 +13,11 @@
     @for (option of _timeOptions; track option.value) {
       <mat-option
         [value]="option.value"
-        (onSelectionChange)="_selectValue($event.source)">{{option.label}}</mat-option>
+        (onSelectionChange)="_selectValue($event.source)">
+        <ng-container [ngTemplateOutlet]="_optionTemplate() || defaultOptionTemplate"
+                      [ngTemplateOutletContext]="{ $implicit: option }">
+        </ng-container>
+      </mat-option>
     }
   </div>
 </ng-template>

src/material/timepicker/timepicker.ts

@@ -13,6 +13,7 @@ import {
   ChangeDetectionStrategy,
   Component,
   computed,
+  contentChild,
   effect,
   ElementRef,
   inject,
@@ -33,6 +34,7 @@ import {
   ViewContainerRef,
   ViewEncapsulation,
 } from '@angular/core';
+import {NgTemplateOutlet} from '@angular/common';
 import {
   _animationsDisabled,
   DateAdapter,
@@ -92,7 +94,7 @@ export const MAT_TIMEPICKER_SCROLL_STRATEGY = new InjectionToken<() => ScrollStr
   styleUrl: 'timepicker.css',
   changeDetection: ChangeDetectionStrategy.OnPush,
   encapsulation: ViewEncapsulation.None,
-  imports: [MatOption],
+  imports: [NgTemplateOutlet, MatOption],
   providers: [
     {
       provide: MAT_OPTION_PARENT_COMPONENT,
@@ -123,6 +125,7 @@ export class MatTimepicker<D> implements OnDestroy, MatOptionParentComponent {
   protected _panelTemplate = viewChild.required<TemplateRef<unknown>>('panelTemplate');
   protected _timeOptions: readonly MatTimepickerOption<D>[] = [];
   protected _options = viewChildren(MatOption);
+  protected _optionTemplate = contentChild<TemplateRef<MatTimepickerOption<D>>>(TemplateRef);
 
   private _keyManager = new ActiveDescendantKeyManager(this._options, this._injector)
     .withHomeAndEnd(true)