Concept for the files manager
This is not a mockup but some pics describing the concept for the Haiku's files manager.
Mainly, one has a path indicator; files and folders can be displayed as icon or as a detailed list, in this case each folder can be expanded. One also has a status bar displaying the space used by a given folder and the remaining free space.
Nothing new here, excepted that one has a vertical toolbar. That doesn't prevent to have a horizontal one or the both, but the principle here is to place a control for anything which can be displayed at the right-hand side or the left-hand side. For example (see below) one can switch the tabbed path indicator in write mode.
Below, the menubar is reduced in a cascading menu but one can display a menu at the left-hand side of the vertical toolbar in a panel (next picture). If one rather likes a menubar, one can and that doesn't prevent to display each menu in the panel; the control "M" will be just aside the menubar.
So, now the "file" menu is displayed in the panel which has a control to close it.
You may have noticed that there's no horizontal scrollbar. Indeed one has a navigation window with which one can pan the canvas; the vertical scrollbar is conventional.
The following is optional but it's about managing files and folder, for example displaying information related to a given item. Below, one uses the status bar to display sequentially different kind of infos (e.g rights, comments and so on). The so-called properties indeed, currently in the "view" menu, hence one can display them in the panel.
Multiple-sorting would be good as well:
Not new, a files manager like Opus Directory has this feature and a lot more. After all, a detailed list is like a spreadsheet from which one could pick its current features. For example, one relies mainly upon the file or folder's name, hence the "name" column