Intermediary refactoring

UI/Input/InputElementWrapper.ts

@@ -0,0 +1,37 @@
+import {InputElement} from "./InputElement";
+import {UIEventSource} from "../UIEventSource";
+import {UIElement} from "../UIElement";
+import {FixedUiElement} from "../Base/FixedUiElement";
+
+
+export class InputElementWrapper<T> extends InputElement<T>{
+    private pre: UIElement ;
+    private input: InputElement<T>;
+    private post: UIElement ;
+    
+    constructor(
+        pre: UIElement | string,
+        input: InputElement<T>,
+        post: UIElement | string
+        
+    ) {
+        super(undefined);
+        this.pre = typeof(pre) === 'string' ?  new FixedUiElement(pre) : pre
+        this.input = input;
+        this.post =typeof(post) === 'string' ?  new FixedUiElement(post) : post
+    }
+    
+    
+    GetValue(): UIEventSource<T> {
+        return this.input.GetValue();
+    }
+
+    protected InnerRender(): string {
+        return this.pre.Render() + this.input.Render() + this.post.Render();
+    }
+
+    IsValid(t: T): boolean {
+        return this.input.IsValid(t);
+    }
+    
+}