Provide some indication that search is not available
Submitted by William Jon McCann
I just opened a .ps file and tried to search within it. I typed Cntl+F, "/", Alt+F, clicked the content pane to make sure it had focus and then repeated. Then started looking through the menus. Wasn't sure what was going on. Finally realized that search may be disabled for this type of document. We should probably show a simple indication that search is not available in these cases.