Bug 220647

Version:            (using KDE 4.3.4)
Compiler:          gcc version 4.3.4 (Gentoo 4.3.4 p1.0, pie-10.1.5) 
OS:                Linux
Installed from:    Gentoo Packages

If a dialog box pops up while you're performing a mouse gesture, you'll find that your mouse pointer is now almost completely useless. For example, say you middle click a link or ten to open them in a new tab and then you start a mouse gesture to switch to the next tab, but up pops a dialog box (say, missing plugin or https -> http warning) and all of the sudden you can't use your mouse anymore. That might sound like a very uncommon case, but I've run into it quite a few times now.

It's difficult to explain what exactly happens to the mouse, but suffice to say that you can't use it to change window focus, close tabs, move windows around or anything else that involves left, middle or right clicking. However, mousewheel still works for scrolling, although only in the active window, you cannot use it to switch window focus like you normally can. Left clicking doesn't seem to do anything no matter where you click. Right clicking anywhere in the content area of the Konqueror window does nothing, but clicking on one of the tabs brings up the normal menu, and right clicking anywhere in the location/navigation buttons/menu area will bring up the menu to toggle which toolbars (Main, Extra, Location, Bookmark, HTML) are visible. Finally, if I mouse over the tab area (without touching any mouse buttons whatsoever), there's a tab which is now permanently highlighted (with the light blue outline) which will change position to more or less follow my cursor location.

I've run into this several times now, and I've yet to find a better solution than restarting X, nothing else seems to have an effect. Things I tried include unplugging and plugging my (USB) mouse back in, switching to VT1 and then back to VT7, killing and restarting kwin... nothing helps.

It's worth noting that the keyboard and keyboard shortcuts are still 100% functional, despite the mouse wonkiness.

Expected behaviour would be to just cancel the mouse gesture if a dialog box poups up, or to delay the creation of dialog boxes while a mouse gesture is being performed until after the gesture completes (which might actually be nicer, but probably not nicer to implement).