HTMLElement: popover property

Value

An enumerated value; possible values are:

"auto"

auto popovers can be "light dismissed" — this means that you can hide the popover by clicking outside it or pressing the Esc key.

Usually, only one auto popover can be shown at a time — showing a second popover when one is already shown will hide the first one. The exception to this rule is when you have nested auto popovers. See Nested popovers for more details.

"hint" Experimental

hint popovers do not close auto popovers when they are displayed, but will close other hint popovers. They can be light dismissed and will respond to close requests.

Usually they are shown and hidden in response to non-click JavaScript events such as mouseover/mouseout and focus/blur. Clicking a button to open a hint popover would cause an open auto popover to light-dismiss.

"manual"

manual popovers cannot be "light dismissed" and are not automatically closed. Popovers must explicitly be displayed and closed using declarative show/hide/toggle buttons or JavaScript. Multiple independent manual popovers can be shown simultaneously.

Examples

Feature detection

You can use the popover attribute to feature detect the Popover API:

function supportsPopover() {
  return Object.hasOwn(HTMLElement.prototype, "popover");
}

Setting up a popover programmatically

const popover = document.getElementById("mypopover");
const toggleBtn = document.getElementById("toggleBtn");

const popoverSupported = supportsPopover();

if (popoverSupported) {
  popover.popover = "auto";
  toggleBtn.popoverTargetElement = popover;
  toggleBtn.popoverTargetAction = "toggle";
} else {
  console.log("Popover API not supported.");
}

Specifications

Browser compatibility

See also

• popover HTML global attribute
• Popover API