Window management - It's not possible to shade a window using the top panel

[Marco Trevisan (Treviño)]

Using the unity-window-decorator in ubuntu it's possible to shade a window using the mouse wheel over it, but this is not possible using the top panel.

1) Open a restored window
2) Use the mouse wheel in "up" direction over the window decoration
   Or press Ctrl+Alt+S
3) The window should shade.
4) Grab the shaded window decoration with mouse and drag it over the panel
5) The shaded window is maximized while still stay shaded.
6) Use the mouser wheel in "down" direction over the top panel
7) Nothing happens. What should happen is that the window becomes un-shaded

Desired behaviour:
- If a 'shaded' window changes state (e.g. is maximised, semi-maximised, restored, or minimised) the window should be automatically un-shaded.

- It should be possible to 'shade' a maximised window.

- If it is not possible to implement the behaviour specified in this bug in 12.04 the window shading functionality should be disabled.

[Ali Najafi (alinajafi)]

It also impossible to unshade a shaded window after the focus was changed to another window. Only a maximize and unmaximize again will bring the window content back.