WindowControlsOverlayGeometryChangeEvent

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The WindowControlsOverlayGeometryChangeEvent interface of the Window Controls Overlay API is passed to geometrychange when the size or visibility of a desktop Progress Web App's title bar region changes.

Event WindowControlsOverlayGeometryChangeEvent

Constructor

WindowControlsOverlayGeometryChangeEvent() Experimental

Creates a WindowControlsOverlayGeometryChangeEvent event with the given parameters.

Instance properties

Also inherits properties from its parent Event.

WindowControlsOverlayGeometryChangeEvent.titlebarAreaRect Read only Experimental

A DOMRect representing the position and size of the title bar region.

WindowControlsOverlayGeometryChangeEvent.visible Read only Experimental

A Boolean that indicates whether the window controls overlay is visible or not.

Examples

The following example shows how to use a WindowControlsOverlayGeometryChangeEvent instance by adding an event handler on the Navigator.windowControlsOverlay property, to listen to geometry changes of a PWA's title bar region.

js
if ("windowControlsOverlay" in navigator) {
  navigator.windowControlsOverlay.addEventListener(
    "geometrychange",
    (event) => {
      if (event.visible) {
        const rect = event.titlebarAreaRect;
        // Do something with the coordinates of the title bar area.
      }
    },
  );
}

Specifications

Specification
Window Controls Overlay
# windowcontrolsoverlay-interface

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
WindowControlsOverlayGeometryChangeEvent
Experimental
WindowControlsOverlayGeometryChangeEvent() constructor
Experimental
titlebarAreaRect
Experimental
visible
Experimental

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.
See implementation notes.

See also