fixed OOV checkbox in vocabulary mode

src/app/helper.service.ts

@@ -55,6 +55,11 @@ export class HelperService {
         navCtrl.navigateRoot('/test').then();
     }
 
+    static goToVocabularyCheckPage(navCtrl: NavController) {
+        HelperService.isVocabularyCheck = true;
+        navCtrl.navigateForward('/vocabulary-check').then();
+    }
+
     initConfig() {
         this.http.get('assets/config.json').subscribe((config: object) => {
             HelperService.config = config;

src/app/home/home.page.ts

@@ -44,15 +44,6 @@ export class HomePage {
         this.navCtrl.navigateForward('/author').then();
     }
 
-    goToTestPage() {
-        this.navCtrl.navigateForward('/test').then();
-    }
-
-    goToVocabularyCheckPage() {
-        HelperService.isVocabularyCheck = true;
-        this.navCtrl.navigateForward('/vocabulary-check').then();
-    }
-
     refreshCorpora() {
         this.isCorpusUpdateInProgress = true;
         this.corpusService.getCorpora(0).then(async (error?: any) => {
@@ -68,18 +59,6 @@ export class HomePage {
         });
     }
 
-    restoreLastSetup() {
-        this.corpusService.restoreLastCorpus();
-        this.exerciseService.restoreLastURN().then(() => {
-            if (HelperService.isVocabularyCheck) {
-                this.navCtrl.navigateForward('/vocabulary-check').then();
-            } else {
-                this.navCtrl.navigateForward('show-text').then();
-            }
-        }, () => {
-        });
-    }
-
     test() {
     }
 }

src/app/show-text/show-text.page.html

@@ -27,13 +27,14 @@
                 </ion-button>
             </ion-col>
             <ion-col>
-                <ion-button (click)="goToVocabularyCheckPage()">{{ 'VOCABULARY_CHECK' | translate }}</ion-button>
+                <ion-button
+                        (click)="HelperService.goToVocabularyCheckPage(navCtrl)">{{ 'VOCABULARY_CHECK' | translate }}</ion-button>
             </ion-col>
         </ion-row>
         <ion-row *ngIf="HelperService.isVocabularyCheck">
             <ion-col>
                 <label>{{ "TEXT_SHOW_OOV" | translate}}
-                    <input type="checkbox" [(ngModel)]="highlightOOV" />
+                    <input type="checkbox" [(ngModel)]="highlightOOV"/>
                 </label>
                 <br>
             </ion-col>
@@ -54,4 +55,4 @@
     <ng-template #loading>
         <ion-spinner></ion-spinner>
     </ng-template>
-</ion-content>
\ No newline at end of file
+</ion-content>