What steps will reproduce the problem? 1. open examples/launcher.py 2. right-click on menu with mouse (touchpad in my case) 3. scroll to the desired app with left-click-drag (not really necessary) 4. click on app with left-click and no drag 5. The app opens, but the first red circle remains where the right-click took place. 6. Left-click on the red circle to try to release it and wamo, down she goes.

Using pymt master branch.

Traceback (most recent call last): File "start.py", line 280, in <module> runTouchApp() File "/home/r/code/pymt/master/pymt/base.py", line 366, in runTouchApp pymt_window.mainloop() File "/home/r/code/pymt/master/pymt/ui/window/win_pygame.py", line 192, in mainloop self._mainloop() File "/home/r/code/pymt/master/pymt/ui/window/win_pygame.py", line 124, in _mainloop evloop.idle() File "/home/r/code/pymt/master/pymt/base.py", line 214, in idle self.dispatch_input() File "/home/r/code/pymt/master/pymt/base.py", line 199, in dispatch_input self.post_dispatch_input(type=type, touch=touch) File "/home/r/code/pymt/master/pymt/base.py", line 169, in post_dispatch_input wid.dispatch_event('on_touch_up', touch) File "/home/r/code/pymt/master/pymt/event.py", line 362, in dispatch_event if getattr(self, event_type)(*args): File "start.py", line 170, in on_touch_up return super(MTMenu, self).on_touch_up(touch) File "/home/r/code/pymt/master/pymt/ui/widgets/composed/kineticlist.py", line 441, in on_touch_up must_break = child.dispatch_event('on_touch_down', touch) File "/home/r/code/pymt/master/pymt/event.py", line 362, in dispatch_event if getattr(self, event_type)(*args): File "/home/r/code/pymt/master/pymt/ui/widgets/button.py", line 116, in on_touch_down self.dispatch_event('on_press', touch) File "/home/r/code/pymt/master/pymt/event.py", line 354, in dispatch_event if handler(args): File "/home/r/code/pymt/master/pymt/utils.py", line 35, in call_fn return fn((cargs + fargs), **d) File "start.py", line 44, in action_launch_plugin menu.parent.add_widget(win) AttributeError: 'NoneType' object has no attribute 'add_widget' Exception in thread Thread-1 (most likely raised during interpreter shutdown): Traceback (most recent call last): File "/usr/lib/python2.6/threading.py", line 532, in bootstrap_inner File "/usr/lib/python2.6/threading.py", line 484, in run File "/usr/lib/python2.6/dist-packages/pygame/threads/__init.py", line 201, in threadloop File "/usr/lib/python2.6/Queue.py", line 65, in task_done File "/usr/lib/python2.6/threading.py", line 291, in notifyAll <type 'exceptions.TypeError'>: 'NoneType' object is not callable

Closed via GitHub: http://github.com/tito/pymt/commit/f54b77008cd8e4777d624caa09ed1847de8c12b5

desktop: fix crash with usage of second touch + disapear menu (fixes issue 283)