Comment 8 for bug 736491

This "any mouse button triggers an action" problem affects other bits of unity too. I reported bug #758110 about the titlebar, which is now indeed fixed, but there are more instances of this. The biggest problem this causes is when one is using a touchpad with two-finger vertical and horizontal scrolling on, where attempting to scroll up and down may send events for buttons 6 and 7 if the drag is not exactly vertical (which it almost never is).

The problems I am aware of are:
- Panel indicator menus can be opened with buttons 6 and 7. This means that using the "scrollwheel" on the sound menu to modify the sound volume may pop the menu open, where the scrollwheel action is inhibited.
- Items displayed in unity lenses may be opened with buttons 6 or 7, so scrolling over a list of many items risks opening any one of them that happens to fall under the mouse pointer.