Extruding after extrude+add not possible

[andre-r@…]

How to reproduce this bug:

1. Use the building tool to create a rectangular building.
2. Switch to extruder mode (x).
3. Extrude the building while holding ALT to create a second area.
4. Try to extrude the freshly created area normally. It won't work in most of the cases after the first click.
5. Give it a second try and it'll work like a charm.

I also realized that the bug doesn't appear, if you use extrude+add both times.

[akks]

I have detected the reason but can not solve it (Buildingtools is unrelated)

This may be Windows-specific, not sure.
ALT activates the menu bar and mapview lose the focus in some strange way, so the next click does not give mousePressed event at all.
​http://stackoverflow.com/questions/868553/how-to-avoid-that-pressing-the-alt-key-takes-away-the-focus-from-my-gui

I tried requestFocusInMapView but it did not work.
Consuming Alt events an AWT listner works ((KeyEvent)e).consume(), but then the standard behaviour of Alt-activating menu is disabled for Extrude mode. Alt events come in large series "press-release-peress-release", so it is almost impossible to detect when Alt was pressed the first time (if not enabling the same hack-timer solution as in DrawMode)

[skyper]

At least with Linux and some WMs like Gnome we use right Alt key (Alt Gr) instead of left Alt which is connected to the WM.

[akks]

On Windows right Alt works the same way as left...