add filters for gallery

pdb-js/src/app/image-toggle/image-toggle.component.ts

@@ -10,29 +10,33 @@ export class ImageToggleComponent implements OnInit {
   @Input()
   images : string = "";
   
-  value: number = 0;
+  index: number = 0;
   
   @Output()
   valueChanged : EventEmitter<number> = new EventEmitter<number>();
   
+  text = undefined;
+  
   _states : Array<any>;
 
   constructor() { }
 
   ngOnInit() {
     this._states = JSON.parse(this.images);
+    this.text = this._states[this.index].text;
   }
   
   imageUrl() : string {
-    return this._states[this.value].imageUrl;
+    return this._states[this.index].imageUrl;
   }
   
   title() : string {
-    return this._states[this.value].title;
+    return this._states[this.index].title;
   }
 
   toggle(event){
-    this.value = (this.value+1) % this._states.length;
-    this.valueChanged.emit(this.value);
+    this.index = (this.index+1) % this._states.length;
+    this.text = this._states[this.index].text;
+    this.valueChanged.emit(this._states[this.index].value);
   }
 }