[Improvement] Better menu bar behaviour

[theFireProject]

Description

Implement the following behaviour. The menu bar is supposed to support two modes:

• always visible and
• auto-hide: The menu bar is hidden and only the tabs are visible. It can be expanded by clicking one of the tabs but it hides again after an action from the menu bar was performed or the user clicks somewhere outside the menu bar.

The mode is switched by clicking the arrow icon. Accordingly, the arrow icon has to change its direction: Facing up to collapse the menu bar and facing down to expand the menu bar permanently.

User benefit

This is a common behaviour. It's know from programs everyone uses: Windows Explorer and Microsoft Office. It is different from the current behaviour: At the moment the menu bar can only be hidden temporarily until it is opened again to perform an action from one of the tabs. Then it stays open permanently, except the user clicks the tiny arrow icon after every single time they had to use a button from the menu bar. The new behaviour allows the menu bar to be hidden permanently with a lot less effort. Therefore it is by far more convenient for the user.

[NickeManarin]

I started working on a new Ribbon UI which would be capable of replicating the Office suite ribbon UI. But I need some help with the implementation.

The current menu bar is a simple Tab control.

[dmtomczyk]

@NickeManarin Do you have any information that could be useful for looking into this feature such as good files to investigate, etc.?

[NickeManarin]

It's inside Controls/Ribbon.

Btw, I have some code on my stash that I need to send.