Creates a new secondary window for a widget to be extracted from the application shell. The created window is closed automatically when the current theia instance is closed.
optional callback that is invoked when the secondary window is closed
the created window or undefined if it could not be created
Handles focussing the given secondary window in the browser and on Electron.
Service for opening new secondary windows to contain widgets extracted from the application shell.
The functionality provided by this service and its implementation is still under development. Use with caution.