Issue 77741

Some actions could take quite long, e.g. I have a odt file which is 2k pages
(~7Mb) with moderate formatting. Save action takes approximately from 1 minute
to 2 on modern machines (~2 min on P4 2G on WinXP, ~ 1 min on Turion 2G on
Linux). With autosave option on occasionly I'd have to stop working and wait
until autosave completes. Having defaut autosave interval pretty small this gets
quite annoying unless I change it.
Being able to interrupt the (auto)save action at least if it hasn't started
writing to the disk e.g. with Esc key would be great improvement especially if I
know that I'll be done typing in 30 sec and will save the doc anyway.

Similar happens in complex search queries: with big document using moderate to
high formatting and using attribute search or using formatting and regexp it may
take up to a min halting the program response to user actions. It would be nice
to be able stop search action e.g. with same Esc key.