How can I make a chrome packaged app which runs in fullscreen at startup?

Question

Currently it seems that the fullscreen ability can only be activated from a user action (mouse/keyboard event). Is there a way to circumvent this?

Answer 1

You can use the HTML5 Fullscreen API, which requires a user action:

button.addEventListener('click', function() {
  document.body.webkitRequestFullscreen();
});

or the more "app-y" way using the AppWindow object, which doesn't require a user action:

chrome.app.window.current().fullscreen();

Both need the "fullscreen" permission in the manifest.json.