Window: getScreenDetails() method

The getScreenDetails() method of the Window interface returns a Promise that fulfills with a ScreenDetails object instance representing the details of all the screens available to the user's device.

None.

A Promise that fulfills with a ScreenDetails object instance.

NotAllowedError DOMException

Thrown if a window-management Permissions-Policy is set that blocks use of the Window Management API, or if the user has explicitly denied the browser's permission request to use the API.

When getScreenDetails() is invoked, the user will be asked for permission to manage windows on all their displays (the status of this permission can be checked using Permissions.query() to query window-management). Provided they grant permission, the resulting ScreenDetails object contains details of all the screens available to the user's system.

The below example opens a full-size window on each available display.

const screenDetails = await window.getScreenDetails();

// Open a full-size window on each screen available to the device
for (const screen of screenDetails.screens) {
  window.open(
    "https://example.com",
    "_blank",
    `left=${screen.availLeft},
    top=${screen.availTop},
    width=${screen.availWidth},
    height=${screen.availHeight}`,
  );
}

• Window Management API