Attempt at listen fix

src/dat/controllers/Controller.js

@@ -17,6 +17,7 @@
  * @param {Object} object The object to be manipulated
  * @param {string} property The name of the property to be manipulated
  */
+
 class Controller {
   constructor(object, property) {
     this.initialValue = object[property];
@@ -92,7 +93,7 @@ class Controller {
       this.__onChange.call(this, newValue);
     }
 
-    this.updateDisplay();
+    this.updateDisplay(true);
     return this;
   }
 
@@ -110,7 +111,7 @@ class Controller {
    * with the object's current value.
    * @returns {Controller} this
    */
-  updateDisplay() {
+  updateDisplay(force) {
     return this;
   }
 

src/dat/controllers/NumberControllerBox.js

@@ -94,11 +94,22 @@ class NumberControllerBox extends NumberController {
     dom.bind(this.__input, 'mousedown', onMouseDown);
     dom.bind(this.__input, 'keydown', function(e) {
       // When pressing enter, you can be as precise as you want.
-      if (e.keyCode === 13) {
-        _this.__truncationSuspended = true;
-        this.blur();
-        _this.__truncationSuspended = false;
-        onFinish();
+      const step = _this.__step || 1;
+      switch (e.keyCode) {
+        case 13:
+          _this.__truncationSuspended = true;
+          this.blur();
+          _this.__truncationSuspended = false;
+          onFinish();
+          break;
+        case 38:
+          var newVal = _this.getValue() + step;
+          _this.setValue(newVal);
+          break;
+        case 40: // down
+          var newVal = _this.getValue() - step;
+          _this.setValue(newVal);
+          break;
       }
     });
 
@@ -107,10 +118,11 @@ class NumberControllerBox extends NumberController {
     this.domElement.appendChild(this.__input);
   }
 
-  updateDisplay() {
+  updateDisplay(force) {
+    if (!force && dom.isActive(this.__input)) return this;
     this.__input.value = this.__truncationSuspended ? this.getValue() : roundToDecimal(this.getValue(), this.__precision);
     return super.updateDisplay();
   }
 }
 
-export default NumberControllerBox;
+export default NumberControllerBox;

src/dat/controllers/OptionController.js

@@ -24,7 +24,7 @@ import common from '../utils/common';
  * @param {Object} object The object to be manipulated
  * @param {string} property The name of the property to be manipulated
  * @param {Object|string[]} options A map of labels to acceptable values, or
- * a list of acceptable string values.
+* a list of acceptable string values.
  */
 class OptionController extends Controller {
   constructor(object, property, opts) {
@@ -75,11 +75,11 @@ class OptionController extends Controller {
     return toReturn;
   }
 
-  updateDisplay() {
-    if (dom.isActive(this.__select)) return this; // prevent number from updating if user is trying to manually update
+  updateDisplay(force) {
+    if (!force && dom.isActive(this.__select)) return this; // prevent number from updating if user is trying to manually update
     this.__select.value = this.getValue();
-    return super.updateDisplay();
+    return super.updateDisplay(force);
   }
 }
 
-export default OptionController;
+export default OptionController;