sidebarAction.isOpen()

Returns true if the extension's sidebar is open in a given window. This function accepts a windowId as a parameter:  If you supply windowId, the function will check the given browser window. If you omit windowId, the function will check the topmost browser window.  This is an asynchronous function that returns a Promise.

Syntax
let gettingIsOpen = browser.sidebarAction.isOpen(
  details // object
)
Parameters
 details  object. An object optionally containing the windowId to check.  
windowId Optional
  integer. ID of a browser window to check. If omitted defaults to windows.WINDOW_ID_CURRENT, which refers to the topmost browser window.    Return value
A Promise that will be fulfilled with true if the extension's sidebar is open in the given window, or false otherwise.Browser compatibility




Desktop
Mobile



Chrome
Edge
Firefox
Internet Explorer
Opera
Safari
WebView Android
Chrome Android
Firefox for Android
Opera Android
Safari on IOS
Samsung Internet



isOpen
No
No
59
?
No
No
?
?
No
?
No
?


Examples

Check the topmost window: browser.sidebarAction.isOpen({}).then((result) => {
  console.log(result);
});
 Check all open windows: async function checkWindow(windowId) {
  const result = await browser.sidebarAction.isOpen({ windowId });
  console.log(`window: ${windowId} status: ${result}`);
}

browser.windows.getAll().then((all) => {
  for (const { id } of all) {
    checkWindow(id);
  }
});



    
{'path': 'public/docs/web_extensions/api/sidebaraction/isopen.html', 'source': 'DevDocs.IO'}