fixup! fix(material-experimental/mdc-slider): sync ui on mouseenter

Author: wagnermaciel

src/material-experimental/mdc-slider/slider.spec.ts

@@ -1930,11 +1930,11 @@ function getCoordsForValue(slider: MatSlider, value: number): Point {
 /** Dispatch a pointerdown or pointerup event if supported, otherwise dispatch the touch event. */
 function dispatchPointerOrTouchEvent(
   node: Node, type: PointerEventType, x: number, y: number, isIOS: boolean) {
-  if (isIOS) {
-    dispatchTouchEvent(node, pointerEventTypeToTouchEventType(type), x, y, x, y);
-  } else {
-    dispatchPointerEvent(node, type, x, y);
-  }
+    if (isIOS) {
+      dispatchTouchEvent(node, pointerEventTypeToTouchEventType(type), x, y, x, y);
+    } else {
+      dispatchPointerEvent(node, type, x, y);
+    }
 }
 
 /** Returns the touch event equivalent of the given pointer event. */

src/material-experimental/mdc-slider/slider.ts

@@ -627,7 +627,9 @@ export class MatSlider extends _MatSliderMixinBase
   _endValueIndicatorText: string;
 
   /** Whether the browser supports pointer events. */
-  private _SUPPORTS_POINTER_EVENTS = typeof PointerEvent !== 'undefined' && !!PointerEvent;
+  private _SUPPORTS_POINTER_EVENTS = typeof PointerEvent !== 'undefined'
+    && !!PointerEvent
+    && !this._platform.IOS; // We exclude iOS to mirror the MDC Foundation
 
   /** Subscription to changes to the directionality (LTR / RTL) context for the application. */
   private _dirChangeSubscription: Subscription;