fix(material/slider): handle contextmenu events

fixes issue #27225

Author: wagnermaciel

src/material/slider/slider-input.ts

@@ -269,13 +269,15 @@ export class MatSliderThumb implements _MatSliderThumb, OnDestroy, ControlValueA
       this._hostElement.addEventListener('pointerdown', this._onPointerDown.bind(this));
       this._hostElement.addEventListener('pointermove', this._onPointerMove.bind(this));
       this._hostElement.addEventListener('pointerup', this._onPointerUp.bind(this));
+      this._hostElement.addEventListener('contextmenu', this._onPointerUp.bind(this));
     });
   }
 
   ngOnDestroy(): void {
     this._hostElement.removeEventListener('pointerdown', this._onPointerDown);
     this._hostElement.removeEventListener('pointermove', this._onPointerMove);
     this._hostElement.removeEventListener('pointerup', this._onPointerUp);
+    this._hostElement.removeEventListener('contextmenu', this._onPointerUp);
     this._destroyed.next();
     this._destroyed.complete();
     this.dragStart.complete();

src/material/slider/slider-thumb.ts

@@ -118,6 +118,7 @@ export class MatSliderVisualThumb implements _MatSliderVisualThumb, AfterViewIni
       input.addEventListener('pointerleave', this._onMouseLeave);
       input.addEventListener('focus', this._onFocus);
       input.addEventListener('blur', this._onBlur);
+      input.addEventListener('contextmenu', this._onDragEnd);
     });
   }
 
@@ -129,6 +130,7 @@ export class MatSliderVisualThumb implements _MatSliderVisualThumb, AfterViewIni
     input.removeEventListener('pointerleave', this._onMouseLeave);
     input.removeEventListener('focus', this._onFocus);
     input.removeEventListener('blur', this._onBlur);
+    input.removeEventListener('contextmenu', this._onDragEnd);
   }
 
   private _onPointerMove = (event: PointerEvent): void => {