Salvataggio modifiche correnti prima di implementare condivisione canto

src/app/services/settings.service.ts

@@ -53,6 +53,9 @@ export class SettingsService {
   /** Avanzamento a pagine del karaoke manuale: true = i tasti next/prev voltano la pagina */
   public karaokePageScrollMode = signal<boolean>(false);
 
+  /** Vista orizzontale per proiezione: true = attiva layout landscape per proiezione */
+  public landscapeProjectionEnabled = signal<boolean>(true);
+
   /** Identificativo utente univoco per la gestione delle comunità */
   public userUuid = signal<string>('');
 
@@ -244,6 +247,13 @@ export class SettingsService {
       this.karaokePageScrollMode.set(false);
     }
 
+    const savedLandscapeProjectionEnabled = localStorage.getItem('landscape-projection-enabled');
+    if (savedLandscapeProjectionEnabled !== null) {
+      this.landscapeProjectionEnabled.set(savedLandscapeProjectionEnabled === 'true');
+    } else {
+      this.landscapeProjectionEnabled.set(true);
+    }
+
     // Sync browser fullscreen state with listeners (supporting vendor prefixes)
     const updateFullscreenState = () => {
       const isFs = !!(
@@ -297,6 +307,10 @@ export class SettingsService {
       localStorage.setItem('karaoke-page-scroll-mode', this.karaokePageScrollMode().toString());
     });
 
+    effect(() => {
+      localStorage.setItem('landscape-projection-enabled', this.landscapeProjectionEnabled().toString());
+    });
+
     effect(() => {
       const active = this.keepScreenOn();
       localStorage.setItem('keep-screen-on', active.toString());
@@ -426,6 +440,12 @@ export class SettingsService {
     localStorage.setItem('karaoke-page-scroll-mode', newValue.toString());
   }
 
+  toggleLandscapeProjectionEnabled() {
+    const newValue = !this.landscapeProjectionEnabled();
+    this.landscapeProjectionEnabled.set(newValue);
+    localStorage.setItem('landscape-projection-enabled', newValue.toString());
+  }
+
   setChordNotationPreference(val: 'diesis' | 'bemolle') {
     this.chordNotationPreference.set(val);
   }