AAE-3936 Tooltip card directive (#6330)

* AAE-3936 Tooltip card directive

* AAE-3936 Fix styles

lib/core/directives/tooltip-card/tooltip-card.directive.spec.ts

@@ -0,0 +1,97 @@
+/*!
+ * @license
+ * Copyright 2019 Alfresco Software, Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Component, ElementRef, ViewChild } from '@angular/core';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { TooltipCardDirective } from './tooltip-card.directive';
+import { CommonModule } from '@angular/common';
+import { OverlayContainer, OverlayModule } from '@angular/cdk/overlay';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { By } from '@angular/platform-browser';
+import { TooltipCardComponent } from './tooltip-card.component';
+
+@Component({
+    template: `<span #span [adf-tooltip-card]="'Sample text'" [image]="'/assets/testImg.png'" [width]="'400'" class="test-component"></span>`
+})
+class TestComponent {
+    @ViewChild(TooltipCardDirective, { static: true })
+    public directive: TooltipCardDirective;
+
+    @ViewChild('span', { static: true })
+    public span: ElementRef;
+}
+
+describe('TooltipCardDirective', () => {
+    let fixture: ComponentFixture<TestComponent>;
+    let overlay: HTMLElement;
+    let overlayContainer: OverlayContainer;
+
+    beforeEach((() => {
+        TestBed.configureTestingModule({
+            imports: [
+                CommonModule,
+                OverlayModule,
+                NoopAnimationsModule
+            ],
+            declarations: [
+                TooltipCardDirective,
+                TooltipCardComponent,
+                TestComponent
+            ]
+        }).compileComponents();
+    }));
+
+    beforeEach(() => {
+        fixture = TestBed.createComponent(TestComponent);
+        fixture.detectChanges();
+        overlayContainer = TestBed.inject(OverlayContainer);
+        overlay = overlayContainer.getContainerElement();
+    });
+
+    afterEach(() => {
+        TestBed.resetTestingModule();
+    });
+
+    it('should display tooltip-card on mouse enter', () => {
+        let tooltipCard = overlay.querySelector<HTMLElement>('div.adf-tooltip-card');
+        expect(tooltipCard).toBeNull();
+        const span = fixture.debugElement.query(By.css('span.test-component'));
+        span.triggerEventHandler('mouseenter', {});
+        fixture.detectChanges();
+        tooltipCard = overlay.querySelector<HTMLElement>('div.adf-tooltip-card');
+        expect(tooltipCard).not.toBeNull();
+        const text = overlay.querySelector<HTMLElement>('div.adf-tooltip-card p');
+        const img = overlay.querySelector<HTMLElement>('div.adf-tooltip-card img');
+        expect(tooltipCard.getAttribute('style')).toBe('width: 400px;');
+        expect(text.textContent.trim()).toEqual('Sample text');
+        expect(img.getAttribute('src')).toEqual('/assets/testImg.png');
+        expect(img.getAttribute('width')).toEqual('400');
+    });
+
+    it('should hide tooltip-card on mouse leave', () => {
+        const span = fixture.debugElement.query(By.css('span.test-component'));
+        span.triggerEventHandler('mouseenter', {});
+        fixture.detectChanges();
+        let tooltipCard = overlay.querySelector<HTMLElement>('div.adf-tooltip-card');
+        expect(tooltipCard).not.toBeNull();
+
+        span.triggerEventHandler('mouseout', {});
+        fixture.detectChanges();
+        tooltipCard = overlay.querySelector<HTMLElement>('div.adf-tooltip-card');
+        expect(tooltipCard).toBeNull();
+    });
+});