Feature request: option to bring back old undocked window behavior #304
Description
Is your feature request related to a problem? Please describe.
With fill_tab_bar = true and when hiding many of the tab row buttons (collapse, add, close all), there is no easy way to drag an undocked window. For example, here it's only possible to move the window by dragging the "add tab" button:
Most of the time, my application only has a single tab taking up the full size, so fill_tab_bar = true is more aesthetic. When multiple tabs are shown they are usually side-by-side, where collapsing individual leaf nodes does nothing and is confusing. Dragging tabs into floating windows is rare, so I don't mind if the UI is a little bulky for that.
Describe the solution you'd like
I liked the old undocked window style, which is still shown in GIF in the README. I would appreciate a setting to use that style instead.
Describe alternatives you've considered
One alternative is to add an option to add a "drag this window" control in the tab bar. I think this would still be more confusing.
Another option is to give the application full control over how undocked windows are shown. This would probably require more API design work.