[SRU] Window management, Multi-monitor - When maximising a window in a multi-monitor environment, the window should never jump from one screen to another!

[John Lea]

To Reproduce:

1. In a multi-monitor environment, set one monitor to a low resolution e.g. 1280x800 and the other to a higher resolution e.g. 1920x1080.

2. Open a window into the restored state on the lower resolution monitor.

3. Stretch the window so that it fills the entire horizontal width of the lower resolution monitor, and a few pixels stretch over on to the higher resolution monitor.

4. Press the Maximise window decoration

What currently happens: Even though the majority of the window is on the lower resolution monitor, the window jumps over to the higher resolution monitor where it maximises.

What should happen: The window should maximise on to the monitor where the majority of the window resides. In this example, the window should maximise on to the lower resolution monitor.

-------------------------------------------------------------
Desired Solution:

- When a user maximises a window, the window should always maximise on the the monitor that contains the majority of the window at the moment the user gives the maximise command.

[Daniel van Vugt (vanvugt)]

Duplicate of bug 947025, I believe.