Eclipse: quick search on filename

Very often while working in Eclipse I realize that I remember class name, but forgot in which package this class is. Using Search is not very convenient. Too many clicks and key presses. I wonder, is there a plugin to simplify this process? For example, would be great if there was text-edit box in the top of package explorer which could filter showing packages and .java files depending of entered text. Anyone knows something like that?

Eclipse does provide similar functions:

Open Resource Shift+Ctrl+R for all resource files (including Java files)

Open Type Shift+Ctrl+T for all Java classes in classpath.

They also filter the list as you type.

Note that they search all files of all opened projects in current workspace.