mattlewis92 · mattlewis92 · Feb 20, 2019 · Nov 5, 2018
diff --git a/projects/angular-calendar/src/modules/common/calendar-tooltip.directive.ts b/projects/angular-calendar/src/modules/common/calendar-tooltip.directive.ts
@@ -17,6 +17,8 @@ import {
 import { DOCUMENT } from '@angular/common';
 import { PlacementArray, positionElements } from 'positioning';
 import { CalendarEvent } from 'calendar-utils';
+import { Observable, of, Subject, timer } from 'rxjs';
+import { takeUntil } from 'rxjs/operators';
 
 @Component({
   selector: 'mwl-calendar-tooltip-window',
@@ -67,8 +69,11 @@ export class CalendarTooltipDirective implements OnDestroy {
 
   @Input('tooltipAppendToBody') appendToBody: boolean; // tslint:disable-line no-input-rename
 
+  @Input('tooltipDelay') delay: number | null = null; // tslint:disable-line no-input-rename
+
   private tooltipFactory: ComponentFactory<CalendarTooltipWindowComponent>;
   private tooltipRef: ComponentRef<CalendarTooltipWindowComponent>;
+  private cancelTooltipDelay$ = new Subject();
 
   constructor(
     private elementRef: ElementRef,
@@ -89,7 +94,11 @@ export class CalendarTooltipDirective implements OnDestroy {
 
   @HostListener('mouseenter')
   onMouseOver(): void {
-    this.show();
+    const delay$: Observable<any> =
+      this.delay === null ? of('now') : timer(this.delay);
+    delay$.pipe(takeUntil(this.cancelTooltipDelay$)).subscribe(() => {
+      this.show();
+    });
   }
 
   @HostListener('mouseleave')
@@ -124,6 +133,7 @@ export class CalendarTooltipDirective implements OnDestroy {
       );
       this.tooltipRef = null;
     }
+    this.cancelTooltipDelay$.next();
   }
 
   private positionTooltip(previousPosition?: string): void {

diff --git a/projects/angular-calendar/src/modules/day/calendar-day-view-event.component.ts b/projects/angular-calendar/src/modules/day/calendar-day-view-event.component.ts
@@ -18,6 +18,7 @@ import { PlacementArray } from 'positioning';
       let-eventClicked="eventClicked"
       let-tooltipTemplate="tooltipTemplate"
       let-tooltipAppendToBody="tooltipAppendToBody"
+      let-tooltipDelay="tooltipDelay"
     >
       <div
         class="cal-event"
@@ -30,6 +31,7 @@ import { PlacementArray } from 'positioning';
         [tooltipEvent]="dayEvent.event"
         [tooltipTemplate]="tooltipTemplate"
         [tooltipAppendToBody]="tooltipAppendToBody"
+        [tooltipDelay]="tooltipDelay"
         (mwlClick)="eventClicked.emit()"
       >
         <mwl-calendar-event-actions
@@ -53,7 +55,8 @@ import { PlacementArray } from 'positioning';
         tooltipPlacement: tooltipPlacement,
         eventClicked: eventClicked,
         tooltipTemplate: tooltipTemplate,
-        tooltipAppendToBody: tooltipAppendToBody
+        tooltipAppendToBody: tooltipAppendToBody,
+        tooltipDelay: tooltipDelay
       }"
     >
     </ng-template>
@@ -74,5 +77,7 @@ export class CalendarDayViewEventComponent {
 
   @Input() tooltipTemplate: TemplateRef<any>;
 
+  @Input() tooltipDelay: number | null;
+
   @Output() eventClicked: EventEmitter<any> = new EventEmitter();
 }
diff --git a/projects/angular-calendar/src/modules/day/calendar-day-view.component.ts b/projects/angular-calendar/src/modules/day/calendar-day-view.component.ts
@@ -90,6 +90,7 @@ export interface DayViewEventResize {
           [tooltipPlacement]="tooltipPlacement"
           [tooltipTemplate]="tooltipTemplate"
           [tooltipAppendToBody]="tooltipAppendToBody"
+          [tooltipDelay]="tooltipDelay"
           [customTemplate]="eventTemplate"
           [eventTitleTemplate]="eventTitleTemplate"
           [eventActionsTemplate]="eventActionsTemplate"
@@ -166,6 +167,7 @@ export interface DayViewEventResize {
               [tooltipPlacement]="tooltipPlacement"
               [tooltipTemplate]="tooltipTemplate"
               [tooltipAppendToBody]="tooltipAppendToBody"
+              [tooltipDelay]="tooltipDelay"
               [customTemplate]="eventTemplate"
               [eventTitleTemplate]="eventTitleTemplate"
               [eventActionsTemplate]="eventActionsTemplate"
@@ -283,6 +285,12 @@ export class CalendarDayViewComponent implements OnChanges, OnInit, OnDestroy {
    */
   @Input() tooltipAppendToBody: boolean = true;
 
+  /**
+   * The delay in milliseconds before the tooltip should be displayed. If not provided the tooltip
+   * will be displayed immediately.
+   */
+  @Input() tooltipDelay: number | null = null;
+
   /**
    * A custom template to use to replace the hour segment
    */

diff --git a/projects/angular-calendar/src/modules/month/calendar-month-cell.component.ts b/projects/angular-calendar/src/modules/month/calendar-month-cell.component.ts
@@ -23,6 +23,7 @@ import { PlacementArray } from 'positioning';
       let-eventClicked="eventClicked"
       let-tooltipTemplate="tooltipTemplate"
       let-tooltipAppendToBody="tooltipAppendToBody"
+      let-tooltipDelay="tooltipDelay"
     >
       <div class="cal-cell-top">
         <span class="cal-day-badge" *ngIf="day.badgeTotal > 0">{{
@@ -47,6 +48,7 @@ import { PlacementArray } from 'positioning';
           [tooltipEvent]="event"
           [tooltipTemplate]="tooltipTemplate"
           [tooltipAppendToBody]="tooltipAppendToBody"
+          [tooltipDelay]="tooltipDelay"
           mwlDraggable
           [class.cal-draggable]="event.draggable"
           dragActiveClass="cal-drag-active"
@@ -67,7 +69,8 @@ import { PlacementArray } from 'positioning';
         unhighlightDay: unhighlightDay,
         eventClicked: eventClicked,
         tooltipTemplate: tooltipTemplate,
-        tooltipAppendToBody: tooltipAppendToBody
+        tooltipAppendToBody: tooltipAppendToBody,
+        tooltipDelay: tooltipDelay
       }"
     >
     </ng-template>
@@ -101,6 +104,8 @@ export class CalendarMonthCellComponent {
 
   @Input() tooltipTemplate: TemplateRef<any>;
 
+  @Input() tooltipDelay: number | null;
+
   @Output() highlightDay: EventEmitter<any> = new EventEmitter();
 
   @Output() unhighlightDay: EventEmitter<any> = new EventEmitter();

diff --git a/projects/angular-calendar/src/modules/month/calendar-month-view.component.ts b/projects/angular-calendar/src/modules/month/calendar-month-view.component.ts
@@ -79,6 +79,7 @@ export interface CalendarMonthViewEventTimesChangedEvent<
               [tooltipPlacement]="tooltipPlacement"
               [tooltipAppendToBody]="tooltipAppendToBody"
               [tooltipTemplate]="tooltipTemplate"
+              [tooltipDelay]="tooltipDelay"
               [customTemplate]="cellTemplate"
               (mwlClick)="dayClicked.emit({ day: day })"
               (highlightDay)="toggleDayHighlight($event.event, true)"
@@ -172,6 +173,12 @@ export class CalendarMonthViewComponent
    */
   @Input() tooltipAppendToBody: boolean = true;
 
+  /**
+   * The delay in milliseconds before the tooltip should be displayed. If not provided the tooltip
+   * will be displayed immediately.
+   */
+  @Input() tooltipDelay: number | null = null;
+
   /**
    * The start number of the week
    */

diff --git a/projects/angular-calendar/src/modules/week/calendar-week-view-event.component.ts b/projects/angular-calendar/src/modules/week/calendar-week-view-event.component.ts
@@ -19,6 +19,7 @@ import { PlacementArray } from 'positioning';
       let-tooltipTemplate="tooltipTemplate"
       let-tooltipAppendToBody="tooltipAppendToBody"
       let-tooltipDisabled="tooltipDisabled"
+      let-tooltipDelay="tooltipDelay"
     >
       <div
         class="cal-event"
@@ -34,6 +35,7 @@ import { PlacementArray } from 'positioning';
         [tooltipEvent]="weekEvent.event"
         [tooltipTemplate]="tooltipTemplate"
         [tooltipAppendToBody]="tooltipAppendToBody"
+        [tooltipDelay]="tooltipDelay"
         (mwlClick)="eventClicked.emit()"
       >
         <mwl-calendar-event-actions
@@ -58,7 +60,8 @@ import { PlacementArray } from 'positioning';
         eventClicked: eventClicked,
         tooltipTemplate: tooltipTemplate,
         tooltipAppendToBody: tooltipAppendToBody,
-        tooltipDisabled: tooltipDisabled
+        tooltipDisabled: tooltipDisabled,
+        tooltipDelay: tooltipDelay
       }"
     >
     </ng-template>
@@ -73,6 +76,8 @@ export class CalendarWeekViewEventComponent {
 
   @Input() tooltipDisabled: boolean;
 
+  @Input() tooltipDelay: number | null;
+
   @Input() customTemplate: TemplateRef<any>;
 
   @Input() eventTitleTemplate: TemplateRef<any>;

diff --git a/projects/angular-calendar/src/modules/week/calendar-week-view.component.ts b/projects/angular-calendar/src/modules/week/calendar-week-view.component.ts
@@ -170,6 +170,7 @@ export interface CalendarWeekViewBeforeRenderEvent extends WeekView {
               [tooltipPlacement]="tooltipPlacement"
               [tooltipTemplate]="tooltipTemplate"
               [tooltipAppendToBody]="tooltipAppendToBody"
+              [tooltipDelay]="tooltipDelay"
               [customTemplate]="eventTemplate"
               [eventTitleTemplate]="eventTitleTemplate"
               [eventActionsTemplate]="eventActionsTemplate"
@@ -293,6 +294,7 @@ export interface CalendarWeekViewBeforeRenderEvent extends WeekView {
                 [tooltipTemplate]="tooltipTemplate"
                 [tooltipAppendToBody]="tooltipAppendToBody"
                 [tooltipDisabled]="dragActive || timeEventResizes.size > 0"
+                [tooltipDelay]="tooltipDelay"
                 [customTemplate]="eventTemplate"
                 [eventTitleTemplate]="eventTitleTemplate"
                 [eventActionsTemplate]="eventActionsTemplate"
@@ -390,6 +392,12 @@ export class CalendarWeekViewComponent implements OnChanges, OnInit, OnDestroy {
    */
   @Input() tooltipAppendToBody: boolean = true;
 
+  /**
+   * The delay in milliseconds before the tooltip should be displayed. If not provided the tooltip
+   * will be displayed immediately.
+   */
+  @Input() tooltipDelay: number | null = null;
+
   /**
    * The start number of the week
    */

diff --git a/projects/angular-calendar/test/calendar-month-view.component.spec.ts b/projects/angular-calendar/test/calendar-month-view.component.spec.ts
@@ -3,7 +3,8 @@ import {
   ComponentFixture,
   TestBed,
   fakeAsync,
-  flush
+  flush,
+  tick
 } from '@angular/core/testing';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import moment from 'moment';
@@ -541,6 +542,47 @@ describe('calendarMonthView component', () => {
     expect(!!document.body.querySelector('.cal-tooltip')).to.equal(false);
   }));
 
+  it('should show a tooltip on mouseover of the event after a delay', fakeAsync(() => {
+    const fixture: ComponentFixture<
+      CalendarMonthViewComponent
+    > = TestBed.createComponent(CalendarMonthViewComponent);
+    eventTitle.monthTooltip = (e: CalendarEvent) => {
+      return `title: ${e.title}`;
+    };
+    fixture.componentInstance.viewDate = new Date('2016-06-27');
+    fixture.componentInstance.events = [
+      {
+        start: new Date('2016-05-30'),
+        end: new Date('2016-06-02'),
+        title: 'foo <b>bar</b>'
+      }
+    ];
+    fixture.componentInstance.tooltipDelay = 2000;
+    fixture.componentInstance.ngOnChanges({ viewDate: {}, events: {} });
+    fixture.detectChanges();
+    const event: HTMLElement = fixture.nativeElement.querySelector(
+      '.cal-days .cal-cell-row .cal-cell:nth-child(4) .cal-events .cal-event'
+    );
+    triggerDomEvent('mouseenter', event);
+    fixture.detectChanges();
+    tick(fixture.componentInstance.tooltipDelay - 1);
+    expect(!!document.body.querySelector('.cal-tooltip')).to.equal(false);
+    tick(1);
+    expect(!!document.body.querySelector('.cal-tooltip')).to.equal(true);
+    const tooltip: HTMLElement = document.body.querySelector(
+      '.cal-tooltip'
+    ) as HTMLElement;
+    expect(tooltip.querySelector('.cal-tooltip-inner').innerHTML).to.equal(
+      'title: foo <b>bar</b>'
+    );
+    expect(tooltip.classList.contains('cal-tooltip-top')).to.equal(true);
+    expect(!!tooltip.style.top).to.equal(true);
+    expect(!!tooltip.style.left).to.equal(true);
+    triggerDomEvent('mouseleave', event);
+    fixture.detectChanges();
+    expect(!!document.body.querySelector('.cal-tooltip')).to.equal(false);
+  }));
+
   it('should disable the tooltip', fakeAsync(() => {
     const fixture: ComponentFixture<
       CalendarMonthViewComponent