Input system cleanup

js/element/InputElement.js

@@ -1,9 +1,28 @@
 import InputTemplate from "../template/InputTemplate"
+import Utility from "../Utility"
 import IElement from "./IElement"
 
 export default class InputElement extends IElement {
 
+    static properties = {
+        ...super.properties,
+        singleLine: {
+            type: Boolean,
+            attribute: "data-single-line",
+            converter: Utility.booleanConverter,
+            reflect: true,
+        },
+        blurOnEnter: {
+            type: Boolean,
+            attribute: "data-blur-enter",
+            converter: Utility.booleanConverter,
+            reflect: true,
+        },
+    }
+
     constructor() {
         super({}, new InputTemplate())
+        this.singleLine = false
+        this.blurOnEnter = true
     }
 }