feat(popover, tooltip): add shown state api

src/framework/theme/components/cdk/overlay/dynamic/dynamic-overlay-handler.spec.ts

@@ -22,6 +22,7 @@ import { NbDynamicOverlay } from './dynamic-overlay';
 import { NbOverlayContent } from '../overlay-service';
 import { NbDynamicOverlayChange, NbDynamicOverlayHandler } from './dynamic-overlay-handler';
 import { NbTrigger, NbTriggerStrategy, NbTriggerStrategyBuilderService } from '../overlay-trigger';
+import { NbOverlayConfig } from '@nebular/theme/components/cdk/overlay/mapping';
 
 @Component({ template: '' })
 export class NbDynamicOverlayMockComponent implements NbRenderableContainer {
@@ -43,18 +44,21 @@ export class NbMockDynamicOverlay {
   _context: Object = {};
   _content: NbOverlayContent;
   _positionStrategy: NbAdjustableConnectedPositionStrategy;
+  _overlayConfig: NbOverlayConfig;
 
   constructor() {}
 
   create(componentType: Type<NbRenderableContainer>,
          content: NbOverlayContent,
          context: Object,
-         positionStrategy: NbAdjustableConnectedPositionStrategy) {
+         positionStrategy: NbAdjustableConnectedPositionStrategy,
+         overlayConfig: NbOverlayConfig) {
 
     this.setContext(context);
     this.setContent(content);
     this.setComponent(componentType);
     this.setPositionStrategy(positionStrategy);
+    this.setOverlayConfig(overlayConfig);
 
     return this;
   }
@@ -71,6 +75,10 @@ export class NbMockDynamicOverlay {
     this._componentType = componentType;
   }
 
+  setOverlayConfig(overlayConfig: NbOverlayConfig) {
+    this._overlayConfig = overlayConfig;
+  }
+
   setContentAndContext(content: NbOverlayContent, context: Object) {
     this._content = content;
     this._context = context;
@@ -516,4 +524,15 @@ describe('dynamic-overlay-handler', () => {
     expect(positionBuilder._position).toBe(NbPosition.LEFT);
     expect(positionBuilder._adjustment).toBe(NbAdjustment.HORIZONTAL);
   });
+
+  it('should set and update overlay config', () => {
+    let overlayConfig: NbOverlayConfig = { panelClass: 'custom-class' };
+
+    let dynamic = configure().overlayConfig(overlayConfig).build();
+    expect(dynamic._overlayConfig).toEqual(jasmine.objectContaining(overlayConfig));
+
+    overlayConfig = { panelClass: 'other-custom-class' };
+    dynamic = configure().overlayConfig(overlayConfig).rebuild();
+    expect(dynamic._overlayConfig).toEqual(jasmine.objectContaining(overlayConfig));
+  });
 });

src/framework/theme/components/cdk/overlay/dynamic/dynamic-overlay-handler.ts

@@ -10,6 +10,7 @@ import {
 import { NbRenderableContainer } from '../overlay-container';
 import { NbOverlayContent } from '../overlay-service';
 import { NbDynamicOverlay } from './dynamic-overlay';
+import { NbOverlayConfig } from '../mapping';
 
 export class NbDynamicOverlayChange extends SimpleChange {
 
@@ -33,6 +34,7 @@ export class NbDynamicOverlayHandler {
   protected _position: NbPosition = NbPosition.TOP;
   protected _adjustment: NbAdjustment = NbAdjustment.NOOP;
   protected _offset: number = 15;
+  protected _overlayConfig: NbOverlayConfig = {};
 
   protected dynamicOverlay: NbDynamicOverlay;
   protected triggerStrategy: NbTriggerStrategy;
@@ -94,6 +96,12 @@ export class NbDynamicOverlayHandler {
     return this;
   }
 
+  overlayConfig(overlayConfig: NbOverlayConfig) {
+    this.changes.overlayConfig = new NbDynamicOverlayChange(this._overlayConfig, overlayConfig);
+    this._overlayConfig = overlayConfig;
+    return this;
+  }
+
   build() {
     if (!this._componentType || !this._host) {
       throw Error(`NbDynamicOverlayHandler: at least 'componentType' and 'host' should be
@@ -104,6 +112,7 @@ export class NbDynamicOverlayHandler {
       this._content,
       this._context,
       this.createPositionStrategy(),
+      this._overlayConfig,
     );
 
     this.connect();
@@ -139,6 +148,10 @@ export class NbDynamicOverlayHandler {
       this.dynamicOverlay.setComponent(this._componentType);
     }
 
+    if (this.isOverlayConfigUpdateRequired()) {
+      this.dynamicOverlay.setOverlayConfig(this._overlayConfig);
+    }
+
     this.clearChanges();
     return this.dynamicOverlay;
   }
@@ -203,6 +216,10 @@ export class NbDynamicOverlayHandler {
     return this.isComponentTypeUpdated();
   }
 
+  private isOverlayConfigUpdateRequired(): boolean {
+    return this.isOverlayConfigUpdated();
+  }
+
   protected isComponentTypeUpdated(): boolean {
     return this.changes.componentType && this.changes.componentType.isChanged();
   }
@@ -235,6 +252,10 @@ export class NbDynamicOverlayHandler {
     return this.changes.offset && this.changes.offset.isChanged();
   }
 
+  protected isOverlayConfigUpdated(): boolean {
+    return this.changes.overlayConfig && this.changes.overlayConfig.isChanged();
+  }
+
   protected clearChanges() {
     this.changes = {};
   }

src/framework/theme/components/cdk/overlay/dynamic/dynamic-overlay.spec.ts

@@ -267,6 +267,16 @@ describe('dynamic-overlay', () => {
     expect(instance.content).toBe(newContent);
   });
 
+  it('should set overlay config', () => {
+    const overlayConfig: NbOverlayConfig = { panelClass: 'additional-overlay-class' };
+    const createOverlaySpy = spyOn(overlayService, 'create').and.callThrough();
+
+    dynamicOverlay.setOverlayConfig(overlayConfig);
+    dynamicOverlay.show();
+
+    expect(createOverlaySpy).toHaveBeenCalledWith(jasmine.objectContaining(overlayConfig));
+  });
+
   it('should return container', () => {
     dynamicOverlay.show();
     expect(dynamicOverlay.getContainer()).toBe(container as any);
@@ -319,29 +329,25 @@ describe('dynamic-overlay', () => {
   });
 
   it('should set component', () => {
-    const detachSpy = spyOn(ref, 'detach').and.callThrough();
     const disposeSpy = spyOn(ref, 'dispose').and.callThrough();
     const attachSpy = spyOn(ref, 'attach').and.callThrough();
     const hasAttacheSpy = spyOn(ref, 'hasAttached');
 
     dynamicOverlay.setComponent(NbDynamicOverlayMock2Component);
 
-    expect(detachSpy).toHaveBeenCalledTimes(0);
     expect(disposeSpy).toHaveBeenCalledTimes(0);
     expect(attachSpy).toHaveBeenCalledTimes(0);
 
     dynamicOverlay.show();
     hasAttacheSpy.and.returnValue(true);
 
     expect(ref.portal.component).toBe(NbDynamicOverlayMock2Component);
-    expect(detachSpy).toHaveBeenCalledTimes(0);
     expect(disposeSpy).toHaveBeenCalledTimes(0);
     expect(attachSpy).toHaveBeenCalledTimes(1);
 
     dynamicOverlay.setComponent(NbDynamicOverlayMockComponent);
 
     expect(ref.portal.component).toBe(NbDynamicOverlayMockComponent);
-    expect(detachSpy).toHaveBeenCalledTimes(1);
     expect(disposeSpy).toHaveBeenCalledTimes(1);
     expect(attachSpy).toHaveBeenCalledTimes(2);
 
@@ -350,7 +356,6 @@ describe('dynamic-overlay', () => {
 
     dynamicOverlay.setComponent(NbDynamicOverlayMock2Component);
 
-    expect(detachSpy).toHaveBeenCalledTimes(3);
     expect(disposeSpy).toHaveBeenCalledTimes(2);
     expect(attachSpy).toHaveBeenCalledTimes(2);
   });

src/framework/theme/components/cdk/overlay/dynamic/dynamic-overlay.ts

@@ -1,6 +1,6 @@
 import { ComponentFactoryResolver, ComponentRef, Injectable, NgZone, Type } from '@angular/core';
-import { filter, takeUntil, takeWhile } from 'rxjs/operators';
-import { Subject } from 'rxjs';
+import { filter, takeUntil, takeWhile, distinctUntilChanged } from 'rxjs/operators';
+import { Subject, BehaviorSubject, Observable } from 'rxjs';
 
 import {
   NbAdjustableConnectedPositionStrategy,
@@ -9,7 +9,7 @@ import {
 
 import { NbRenderableContainer } from '../overlay-container';
 import { createContainer, NbOverlayContent, NbOverlayService, patch } from '../overlay-service';
-import { NbOverlayRef, NbOverlayContainer } from '../mapping';
+import { NbOverlayRef, NbOverlayContainer, NbOverlayConfig } from '../mapping';
 
 export interface NbDynamicOverlayController {
   show();
@@ -27,14 +27,20 @@ export class NbDynamicOverlay {
   protected context: Object = {};
   protected content: NbOverlayContent;
   protected positionStrategy: NbAdjustableConnectedPositionStrategy;
+  protected overlayConfig: NbOverlayConfig = {};
 
   protected positionStrategyChange$ = new Subject();
+  protected isShown$ = new BehaviorSubject<boolean>(false);
   protected alive = true;
 
   get isAttached(): boolean {
     return this.ref && this.ref.hasAttached();
   }
 
+  get isShown(): Observable<boolean> {
+    return this.isShown$.pipe(distinctUntilChanged());
+  }
+
   constructor(
     protected overlay: NbOverlayService,
     protected componentFactoryResolver: ComponentFactoryResolver,
@@ -45,11 +51,13 @@ export class NbDynamicOverlay {
   create(componentType: Type<NbRenderableContainer>,
          content: NbOverlayContent,
          context: Object,
-         positionStrategy: NbAdjustableConnectedPositionStrategy) {
+         positionStrategy: NbAdjustableConnectedPositionStrategy,
+         overlayConfig: NbOverlayConfig = {}) {
 
     this.setContentAndContext(content, context);
     this.setComponent(componentType);
     this.setPositionStrategy(positionStrategy);
+    this.setOverlayConfig(overlayConfig);
 
     return this;
   }
@@ -82,11 +90,10 @@ export class NbDynamicOverlay {
     this.componentType = componentType;
 
     // in case the component is shown we recreate it and show it back
-    if (this.ref && this.isAttached) {
-      this.dispose();
+    const wasAttached = this.isAttached;
+    this.disposeOverlayRef();
+    if (wasAttached) {
       this.show();
-    } else if (this.ref && !this.isAttached) {
-      this.dispose();
     }
   }
 
@@ -108,6 +115,16 @@ export class NbDynamicOverlay {
     }
   }
 
+  setOverlayConfig(overlayConfig: NbOverlayConfig) {
+    this.overlayConfig = overlayConfig;
+
+    const wasAttached = this.isAttached;
+    this.disposeOverlayRef();
+    if (wasAttached) {
+      this.show();
+    }
+  }
+
   show() {
     if (!this.ref) {
       this.createOverlay();
@@ -120,6 +137,8 @@ export class NbDynamicOverlay {
       this.disposeOverlayRef();
       return this.show();
     }
+
+    this.isShown$.next(true);
   }
 
   hide() {
@@ -129,6 +148,8 @@ export class NbDynamicOverlay {
 
     this.ref.detach();
     this.container = null;
+
+    this.isShown$.next(false);
   }
 
   toggle() {
@@ -143,6 +164,8 @@ export class NbDynamicOverlay {
     this.alive = false;
     this.hide();
     this.disposeOverlayRef();
+    this.isShown$.complete();
+    this.positionStrategyChange$.complete();
   }
 
   getContainer() {
@@ -153,6 +176,7 @@ export class NbDynamicOverlay {
     this.ref = this.overlay.create({
       positionStrategy: this.positionStrategy,
       scrollStrategy: this.overlay.scrollStrategies.reposition(),
+      ...this.overlayConfig,
     });
     this.updatePositionWhenStable();
   }