feat(addon-doc): improve UX when switch global dark mode on API page (#…

…9053)

projects/addon-doc/components/demo/index.html

@@ -4,7 +4,7 @@
  size="s"
  tuiSwitch
  type="checkbox"
- [ngModel]="dark"
+ [ngModel]="dark()"
  (ngModelChange)="onModeChange($event)"
  />
  {{ texts[0] }}
@@ -23,7 +23,7 @@
 <div
  tuiResizable
  class="t-wrapper"
- [attr.tuiTheme]="dark ? 'dark' : 'light'"
+ [attr.tuiTheme]="theme()"
  [class.t-wrapper_transparent]="!opaque"
 >
  <div class="t-content">

projects/addon-doc/components/demo/index.ts

@@ -1,14 +1,18 @@
 import {JsonPipe, Location, NgIf, NgTemplateOutlet} from '@angular/common';
-import type {ElementRef, OnInit} from '@angular/core';
 import {
  ChangeDetectionStrategy,
  Component,
+ computed,
  ContentChild,
+ type ElementRef,
  inject,
  Input,
+ type OnInit,
+ signal,
  TemplateRef,
  ViewChild,
 } from '@angular/core';
+import {takeUntilDestroyed, toObservable} from '@angular/core/rxjs-interop';
 import type {AbstractControl} from '@angular/forms';
 import {FormGroup, FormsModule, ReactiveFormsModule} from '@angular/forms';
 import type {Params, UrlTree} from '@angular/router';
@@ -29,6 +33,7 @@ import {TuiSwitch} from '@taiga-ui/kit/components/switch';
 import {TuiChevron} from '@taiga-ui/kit/directives/chevron';
 import {TuiSelectModule} from '@taiga-ui/legacy/components/select';
 import {TuiTextfieldControllerModule} from '@taiga-ui/legacy/directives/textfield-controller';
+import {skip} from 'rxjs';
 
 const MIN_WIDTH = 160;
 
@@ -75,14 +80,21 @@ export class TuiDocDemo implements OnInit {
  private readonly locationRef = inject(Location);
  private readonly urlSerializer = inject(UrlSerializer);
  private readonly urlStateHandler = inject(TUI_DOC_URL_STATE_HANDLER);
+ private readonly darkMode = inject(TUI_DARK_MODE);
 
  @ContentChild(TemplateRef)
  protected readonly template: TemplateRef<Record<string, unknown>> | null = null;
 
- protected dark = tuiCoerceValueIsTrue(
- this.params.darkMode ?? inject(TUI_DARK_MODE)(),
+ protected theme = computed(() => (this.dark() ? 'dark' : 'light'));
+
+ protected dark = signal(
+ tuiCoerceValueIsTrue(this.params.darkMode ?? this.darkMode()),
  );
 
+ protected readonly $ = toObservable(this.darkMode)
+ .pipe(skip(1), takeUntilDestroyed())
+ .subscribe((mode) => this.onModeChange(mode));
+
  protected testForm?: FormGroup;
 
  protected readonly updateOnVariants = ['change', 'blur', 'submit'] as const;
@@ -115,9 +127,9 @@ export class TuiDocDemo implements OnInit {
  this.updateUrl({sandboxWidth: this.sandboxWidth});
  }
 
- protected onModeChange(dark: boolean): void {
- this.dark = dark;
- this.updateUrl({sandboxWidth: this.sandboxWidth, darkMode: this.dark});
+ protected onModeChange(darkMode: boolean): void {
+ this.dark.set(darkMode);
+ this.updateUrl({sandboxWidth: this.sandboxWidth, darkMode});
  }
 
  protected toggleDetails(): void {