public class IdeClipboard
Provides means to install and access IDE clipboard.
The IDE clipboard is a workaround for problems described in JDK bug 4818143.
It caches the contents of system clipboard and accesses the system clipboard
in a separate thread.
The cache is synchronized with the system clipboard when any of our
Windows gets WINDOW_ACTIVATED event. It means that
if some other application modifies the contents of the system clipboard in
the background then the change won't be propagated to us immediately.
The other drawback is that if an extension code bypasses IDE clipboard and
accesses the system clipboard directly then we don't see these changes.