[player] Init properties of Element Components

projects/player/src/app/components/element-compound-group/element-compound-group.component.ts

@@ -27,7 +27,7 @@ export class ElementCompoundGroupComponent extends ElementFormGroupDirective imp
   ClozeElement!: ClozeElement;
   LikertElement!: LikertElement;
 
-  isKeypadOpen!: boolean;
+  isKeypadOpen: boolean = false;
 
   constructor(
     private keyboardService: KeyboardService,

projects/player/src/app/components/element-media-player-group/element-media-player-group.component.ts

@@ -20,7 +20,7 @@ export class ElementMediaPlayerGroupComponent extends ElementGroupDirective impl
   @Input() elementModel!: UIElement;
   @Input() pageIndex!: number;
 
-  initialValue!: number;
+  initialValue: number = 0;
 
   AudioElement!: AudioElement;
   VideoElement!: VideoElement;

projects/player/src/app/components/element-text-group/element-text-group.component.ts

@@ -21,13 +21,13 @@ export class ElementTextGroupComponent extends ElementGroupDirective implements
   @ViewChild('elementComponent') elementComponent!: ElementComponent;
   TextElement!: TextElement;
 
-  initialValue!: string;
-  isMarkingBarOpen!: boolean;
-  selectedColor!: string | null;
-  selectedMode!: 'mark' | 'delete' | null;
+  initialValue: string = '';
+  isMarkingBarOpen: boolean = false;
+  selectedColor: string | null = null;
+  selectedMode: 'mark' | 'delete' | null = null;
   markingBarPosition: { top: number, left: number } = { top: 0, left: 0 };
+  textComponentContainerScrollTop: number = 0;
   textComponentRect!: DOMRect;
-  textComponentContainerScrollTop!: number;
 
   private ngUnsubscribe = new Subject<void>();
 

projects/player/src/app/components/element-text-input-group/element-text-input-group.component.ts

@@ -30,7 +30,7 @@ export class ElementTextInputGroupComponent extends ElementFormGroupDirective im
   TextFieldElement!: TextFieldElement;
   SpellCorrectElement!: SpellCorrectElement;
 
-  isKeypadOpen!: boolean;
+  isKeypadOpen: boolean = false;
 
   constructor(
     private keyboardService: KeyboardService,