Open mode in Angular Tooltip component

8 Jan 202515 minutes to read

You can decide the mode in which the Tooltip is to be opened on a page, i.e., on hovering, focusing, or clicking on the target elements by using the opensOn property.

On mobile devices, Tooltips appear when you tap and hold the element, even if the opensOn option is assigned with Hover.
Tooltips are also displayed as long as you continue to tap and hold the element. On release, it disappears after 1.5 seconds.
If there is another action before that time ends, then the Tooltip disappears.

The opensOn property can take either a single or a combination of multiple values, separated by space from the following options.

The table below explains how the Tooltip opens on both desktop and mobile based on the value(s) assigned to the opensOn property.
By default, it takes Auto value.

Values Desktop Mobile
Auto Tooltip appears when you hover over the target or when the target element receives focus. Tooltip opens on tap and hold of the target element.
Hover Tooltip appears when you hover over the target. Tooltip opens on tap and hold of the target element.
Click Tooltip appears when you click a target element. Tooltip appears when you single tap the target element.
Focus Tooltip appears when you focus (say through tab key) on a target element. Tooltip appears with a single tap on the target element.
Custom Tooltip is not triggered by any default action. So, you have to bind your own events and use either open or close public methods. Same as Desktop.

To open the Tooltip for multiple actions, say while hovering over or clicking on a target element, the opensOn property can be assigned with multiple values, separated by space as hover click.

Auto value cannot be used with any combination for multiple values.

The following code example shows how to set the open mode for Tooltips.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { TooltipModule } from '@syncfusion/ej2-angular-popups'
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component, ViewChild } from '@angular/core';
import { TooltipComponent } from '@syncfusion/ej2-angular-popups';

@Component({
  imports: [
    TooltipModule,
    ButtonModule
  ],
  standalone: true,
  selector: 'my-app',
  template: `
    <div id='container'>
        <table style="margin: 150px auto 0 auto;transform: translateY(-50%);">
            <tbody>
                <tr>
                    <td style="padding:25px">
                      <ejs-tooltip id="tooltipHover" opensOn='Hover' content='Tooltip from hover' >
                       <div>
                        <input ejs-button  class="blocks" type="button" value="Hover Me!"/></div>
                      </ejs-tooltip>
                    </td>
                    <td style="padding:25px">
                      <ejs-tooltip id="tooltipClick"  opensOn='Click' content='Tooltip from click'>
                       <div>
                        <input ejs-button  class="blocks" type="button" value="Click Me!"/></div>
                      </ejs-tooltip>
                    </td>
                </tr>
                <tr>
                    <td style="padding:25px">
                      <ejs-tooltip id="tooltipFocus" opensOn='Focus' content='Tooltip from focus' target='#input'>
                         <div>
                          <input id='input' class="blocks e-float-input" type="text" placeholder="Focus and blur"/>
                        </div>
                      </ejs-tooltip>
                    </td>
                    <td style="padding:25px">
                      <ejs-tooltip id="tooltipCustom" #tooltipCustom opensOn='custom' content='Tooltip from custom mode'>
                        <div>
                          <input ejs-button  class="blocks" id="tooltipOpen" type="button" value="Click to open tooltip manually" (click)='onCustomOpen($event)'/>
                        </div>
                      </ejs-tooltip>
                    </td>
                </tr>
            </tbody>
        </table>
    </div>
    `,
  styles: [`
    .blocks {
        width: 260px;
    }
    `]
})

export class AppComponent {
  @ViewChild('tooltipCustom')
  public tooltipCustom: TooltipComponent | any;
  constructor() { }
  onCustomOpen(args: any): void {
    if (args.target.getAttribute('data-tooltip-id')) {
      this.tooltipCustom.close();
    } else {
      this.tooltipCustom.open(args.target);
    }
  }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Custom open mode

Other than the above specified options, the custom mode makes the Tooltip appear on screen for user-defined custom actions such as right-click, double-click, and so on. Here, the Tooltip is not triggered by any default action, and you have to bind your own events and use either open or close public methods to show or hide the Tooltips.

The following code example shows how to define custom open mode for the Tooltip.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { TooltipModule } from '@syncfusion/ej2-angular-popups'
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component, ViewChild } from '@angular/core';
import { TooltipComponent } from '@syncfusion/ej2-angular-popups';

@Component({
    imports: [
        TooltipModule,
        ButtonModule
    ],
    standalone: true,
    selector: 'my-app',
    template: `
    <ejs-tooltip #tooltip id="tooltip" content='Tooltip from custom mode' opensOn='Custom' (dblclick)='customOpen($event)'>
            <span>Double-click to open Tooltip</span>
    </ejs-tooltip>
    `,
    styles: [`
    #tooltip {
        display: block;
        background-color: #cfd8dc;
        border: 3px solid #eceff1;
        box-sizing: border-box;
        margin: 80px auto;
        padding: 20px 0;
        width: 200px;
        text-align: center;
        color: #424242;
        font-size: 20px;
    }
    `]
})

export class AppComponent {
    @ViewChild('tooltip')
    public tooltipControl: TooltipComponent | any;
    constructor() { }
    customOpen(args: any): void {
        if (args.target.getAttribute("data-tooltip-id")) {
            this.tooltipControl.close();
        } else {
            this.tooltipControl.open(args.target);
        }
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Sticky mode

With this mode set to true, Tooltips will remain on the screen until the close icon is pressed. In this mode, close icon is attached to the Tooltip located at the top right corner. This mode can be enabled or disabled using the isSticky property.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { TooltipModule } from '@syncfusion/ej2-angular-popups'
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component } from '@angular/core';

@Component({
    imports: [
        TooltipModule,
        ButtonModule
    ],
    standalone: true,
    selector: 'my-app',
    template: `
    <ejs-tooltip id="tooltip" content='Click close icon to close me' [isSticky]='true'>
            <span>Show tooltip</span>
    </ejs-tooltip>
    `,
    styles: [`
    #tooltip {
        display: block;
        background-color: #cfd8dc;
        border: 3px solid #eceff1;
        box-sizing: border-box;
        margin: 80px auto;
        padding: 20px 0;
        width: 200px;
        text-align: center;
        color: #424242;
        font-size: 20px;
    }
    `]
})

export class AppComponent {
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Open/Close Tooltip with delay

The Tooltips can be opened or closed after some delay by using the openDelay and closeDelay properties.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { TooltipModule } from '@syncfusion/ej2-angular-popups'
import { ButtonModule } from '@syncfusion/ej2-angular-buttons'
import { Component } from '@angular/core';

@Component({
    imports: [
        TooltipModule,
        ButtonModule
    ],
    standalone: true,
    selector: 'my-app',
    template: `
    <ejs-tooltip id="tooltip" content='Tooltip with delay' [openDelay]='1000' [closeDelay]='1000'>
            Show tooltip
    </ejs-tooltip>
    `,
    styles: [`
    #tooltip {
        display: block;
        background-color: #cfd8dc;
        border: 3px solid #eceff1;
        box-sizing: border-box;
        margin: 80px auto;
        padding: 20px 0;
        width: 200px;
        text-align: center;
        color: #424242;
        font-size: 20px;
    }
    `]
})

export class AppComponent {
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));