chore(nav-drawer): change isPlatform and isIOS to public fields

Author: wnvko

projects/igniteui-angular/src/lib/core/touch.ts

@@ -21,7 +21,7 @@ export class HammerGesturesManager {
     private _hammerManagers: Array<{ element: EventTarget, manager: HammerManager; }> = [];
 
     constructor(private _zone: NgZone, @Inject(DOCUMENT) private doc: any, private platformUtil: PlatformUtil) {
-        this.platformBrowser = this.platformUtil.isPlatformBrowser;
+        this.platformBrowser = this.platformUtil.isBrowser;
         if (this.platformBrowser) {
             this.hammerOptions = {
                 // D.P. #447 Force TouchInput due to PointerEventInput bug (https://github.com/hammerjs/hammer.js/issues/1065)

projects/igniteui-angular/src/lib/core/utils.ts

@@ -234,19 +234,11 @@ export function isFirefox(): boolean {
  */
 @Injectable({ providedIn: 'root' })
 export class PlatformUtil {
-    private platformBrowser: boolean;
+    public isBrowser: boolean = isPlatformBrowser(this.platformId);
 
-    constructor(@Inject(PLATFORM_ID) private platformId: Object) {
-        this.platformBrowser = isPlatformBrowser(this.platformId);
-    }
+    public isIOS = this.isBrowser && /iPad|iPhone|iPod/.test(navigator.userAgent) && !('MSStream' in window);
 
-    public get isIOS(): boolean {
-        const iosBrowser = this.platformBrowser && /iPad|iPhone|iPod/.test(navigator.userAgent) && !('MSStream' in window);
-        return iosBrowser;
-    }
-
-    public get isPlatformBrowser(): boolean {
-        return this.platformBrowser;
+    constructor(@Inject(PLATFORM_ID) private platformId: Object) {
     }
 }
 

projects/igniteui-angular/src/lib/grids/grid/cell.spec.ts

@@ -182,20 +182,26 @@ describe('IgxGrid - Cell component #grid', () => {
 
     it('Should not attach doubletap handler for non-iOS', () => {
         const addListenerSpy = spyOn(HammerGesturesManager.prototype, 'addEventListener');
-        spyOnProperty(PlatformUtil.prototype, 'isIOS').and.returnValue(false);
+        const platformUtil: PlatformUtil = TestBed.get(PlatformUtil);
+        const oldIsIOS = platformUtil.isIOS;
+        platformUtil.isIOS = false;
         const fix = TestBed.createComponent(DefaultGridComponent);
         fix.detectChanges();
+        // spyOnProperty(PlatformUtil.prototype, 'isIOS').and.returnValue(false);
         expect(addListenerSpy).not.toHaveBeenCalled();
+
+        platformUtil.isIOS = oldIsIOS;
     });
 
     it('Should handle doubletap on iOS, trigger onDoubleClick event', () => {
         const addListenerSpy = spyOn(HammerGesturesManager.prototype, 'addEventListener');
-        spyOnProperty(PlatformUtil.prototype, 'isIOS').and.returnValue(true);
+        const platformUtil: PlatformUtil = TestBed.get(PlatformUtil);
+        const oldIsIOS = platformUtil.isIOS;
+        platformUtil.isIOS = true;
         const fix = TestBed.createComponent(DefaultGridComponent);
         fix.detectChanges();
 
         const grid = fix.componentInstance.instance;
-        const cellElem = fix.debugElement.query(By.css(CELL_CSS_CLASS));
         const firstCell = grid.getCellByColumn(0, 'index');
 
         // should attach 'doubletap'
@@ -218,6 +224,8 @@ describe('IgxGrid - Cell component #grid', () => {
         expect(event.preventDefault).toHaveBeenCalled();
         expect(grid.onDoubleClick.emit).toHaveBeenCalledWith(args);
         expect(firstCell).toBe(fix.componentInstance.clickedCell);
+
+        platformUtil.isIOS = oldIsIOS;
     });
 
     it('Should blur selected cell when scrolling with mouse wheel', (async () => {

projects/igniteui-angular/src/lib/navigation-drawer/navigation-drawer.component.ts

@@ -621,7 +621,7 @@ export class IgxNavigationDrawerComponent implements
      * Sets the drawer width.
      */
     private setDrawerWidth(width: string) {
-        if (this.platformUtil.isPlatformBrowser) {
+        if (this.platformUtil.isBrowser) {
             requestAnimationFrame(() => {
                 if (this.drawer) {
                     this.renderer.setElementStyle(this.drawer, 'width', width);
@@ -655,7 +655,7 @@ export class IgxNavigationDrawerComponent implements
             this._touchManager.addGlobalEventListener('document', 'panmove', this.pan);
             this._touchManager.addGlobalEventListener('document', 'panend', this.panEnd);
         }
-        if (!this._resizeObserver && this.platformUtil.isPlatformBrowser) {
+        if (!this._resizeObserver && this.platformUtil.isBrowser) {
             this._resizeObserver = fromEvent(window, 'resize').pipe(debounce(() => interval(150)))
                 .subscribe((value) => {
                     this.checkPinThreshold(value);
@@ -673,7 +673,7 @@ export class IgxNavigationDrawerComponent implements
     }
 
     private checkPinThreshold = (evt?: Event) => {
-        if (!this.platformUtil.isPlatformBrowser) {
+        if (!this.platformUtil.isBrowser) {
             return;
         }
         let windowWidth;