Fancy tooltip customization in EJ2 JavaScript Tooltip control

29 Aug 202310 minutes to read

The arrow of the tooltip can be customized as needed by customizing CSS in the sample-side. The EJ2 tooltip component is achieved through CSS3 format and positioned the tip arrow according to the tooltip positions like TopCenter, BottomLeft, RightTop, and more.

Here, the tip arrow is customized as Curved tooltip and Bubble tooltip.

Curved tip

The content for the tip pointer arrow has been added. To customize the curved tip arrow, override the following CSS class of tip arrow.

    let tooltip: Tooltip = new Tooltip({
    cssClass: 'curvetips e-tooltip-css',
    content: 'Tooltip arrow customized',
});
tooltip.appendTo('#target');

      .e-arrow-tip-outer.e-tip-bottom,
      .e-arrow-tip-outer.e-tip-top {
           border-left: none !important;
           border-right: none !important;
           border-top: none !important;
      }
      .e-arrow-tip.e-tip-top {
           transform: rotate(170deg);
      }

Bubble tip

The two divs(inner div and outer div) have been added to achieve the bubble tip arrow. To customize the bubble tip arrow, override the following CSS class of tip arrow.

    let bubble: Tooltip = new Tooltip({
    cssClass: 'bubbletip e-tooltip-css',
    position: 'TopRight',
    content: 'Tooltip arrow customized as balloon tip'
});
bubble.appendTo('#bubbletip');

    .e-arrow-tip-outer.e-tip-bottom, .e-arrow-tip-outer.e-tip-top
      {
         border-radius: 50px;
         height: 10px;
         width: 10px;
      }

      .e-arrow-tip-inner.e-tip-bottom, .e-arrow-tip-inner.e-tip-top
        {
         border-radius: 50px;
         height: 10px;
         width: 10px;
        }

These tip arrow customizations have been achieved through CSS changes in the sample level. The tooltip position can be changed by using the radio button click event.

The arrow tip pointer can also be disabled by using the showTipPointer property in a tooltip.

index.js
index.html
var tooltip = new ej.popups.Tooltip({
   cssClass: 'curvetips e-tooltip-css',
   content: 'Tooltip arrow customized',
});
tooltip.appendTo('#target');

var curvebutton = new ej.buttons.Button();
curvebutton.appendTo('#target');

var tipbutton = new ej.buttons.Button();
tipbutton.appendTo('#tooltip');

var bubblebutton = new ej.buttons.Button();
bubblebutton.appendTo('#bubbletip');

var radiobutton = new ej.buttons.RadioButton({ label: 'TopCenter', name: 'default', value: 'TopCenter', checked: true, change: onChange});

// Render initialized RadioButton.
radiobutton.appendTo('#element1');

var radiobutton = new ej.buttons.RadioButton({ label: 'BottomLeft', name: 'default', value: 'BottomLeft',  change: onChange});
radiobutton.appendTo('#element2');

var tippointer = new ej.popups.Tooltip({
    cssClass: 'pointertip e-tooltip-css',
    mouseTrail: true,
    content: 'Disabled tooltip pointer',
    showTipPointer: false
});
tippointer.appendTo('#tooltip');

var bubble = new ej.popups.Tooltip({
    cssClass: 'bubbletip e-tooltip-css',
    position: 'TopRight',
    content: 'Tooltip arrow customized as balloon tip'
});
bubble.appendTo('#bubbletip');

var radiobutton = new ej.buttons.RadioButton({ label: 'BottomLeft', name: 'position', value: 'BottomLeft', change: onChanged});

// Render initialized RadioButton.
radiobutton.appendTo('#radio1');

var radiobutton = new ej.buttons.RadioButton({ label: 'TopRight', name: 'position', value: 'TopRight',  checked: true, change: onChanged});
radiobutton.appendTo('#radio2');

function onChange(args) {
    tooltip.position = args.value;
    tooltip.dataBind();
}
function onChanged(args) {
    bubble.position = args.value;
    if(bubble.position == 'BottomLeft'){
      bubble.offsetY = -30;
    } else {
      bubble.offsetY = 0;
    }
    bubble.dataBind();
}
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Tooltip</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-base/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="customization" class="customTipContainer">
            <button id="target">
                Customized Tip Arrow
            </button>
            <div id="positions">
                <ul>
                    <li>
                        <input type="radio" id="element1">
                    </li>
                    <li>
                        <input type="radio" id="element2">
                    </li>
                </ul>
            </div>
        </div>
        <div id="balloon" class="customTipContainer">
            <button id="bubbletip">
                Bubble Tip Arrow
            </button>
            <div id="btn">
                <ul>
                    <li>
                        <input type="radio" id="radio1">
                    </li>
                    <li>
                        <input type="radio" id="radio2">
                    </li>
                </ul>
            </div>
        </div>
        <div id="disabledContainer" class="customTipContainer">
            <button id="tooltip">
                Disabled Tip Arrow
            </button>
        </div>
    </div>



<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>