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[Launchpad Bug Tracker <892012@xxxxxxxxxxxxxxxxxx>]

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Window management - When a  Semi-maximising a window is maximised by
clicking on the window decorations and then returned to the semi-
maximised state, the window position jumps so the the window title bar
is hidden underneath the top bar.

One way reproduce the bug:
1. Take a restored window
2. Semi-maximise the window
3. Press ALT + F10 to maximise the window
4. Click on the 'restore' window decoration to return the window to the restored state state.

What currently incorrectly happens:
- After performing step 3, the window returns to a weird state where it is restored, but in the size and shape of a semi-maximised window, and the position is also offset from what would be expected from a semi-maximised window.  This is especially problematic because in some cases the window is positioned so that all of the window title bar is underneath the top bar, making it impossible for a user to move the window without knowing a keyboard shortcut.

See the attached screencast "window_positioning_issue.ogv" to see the
bug in action.  (In the screencast this bug is reproduced using the
window decorations instead of the Alt+F10 shortcut, which won't be
possible after bug https://bugs.launchpad.net/ayatana-design/+bug/796594
is fixed)

Desired behavour:
- On pressing the 'restore' window decoration in step 4 of the bug reproduction instructions, the window should return to exactly the same state it had at the beginning of step 1.
- When fixing this bug, also review and look at fixing bug https://bugs.launchpad.net/ayatana-design/+bug/796594 as these issues are related

-------------------------------------------


Another way to reproduce the bug:
1. Semi-maximise the Thunderbird main window
2. Press the 'restore' window decoration (button on the far right of the 3 button cluster)

What currently incorrectly happens:
- The window jumps up so that the window title bar in underneath the top bar

What should happen
- The window should return to it's previous 'restored' state.

** Affects: ayatana-design
     Importance: Critical
     Assignee: John Lea (johnlea)
         Status: Fix Committed

** Affects: compiz-core
     Importance: High
     Assignee: Sam Spilsbury (smspillaz)
         Status: In Progress

** Affects: unity
     Importance: High
     Assignee: Sam Spilsbury (smspillaz)
         Status: Confirmed

** Affects: unity-distro-priority
     Importance: Undecided
         Status: Fix Committed

** Affects: compiz (Ubuntu)
     Importance: High
         Status: Confirmed


** Tags: top5p udp
-- 
Window management - When a  semi-maximised a window is maximised and then restored, the window position jumps and window size changes so the the window title bar is sometimes hidden underneath the top bar
https://bugs.launchpad.net/bugs/892012
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