Submenu shown on top of a parent menu may block mouse navigation

[typeof]

Perhaps this is the same problem as described in comment 15 to the ticket #4594

It only concerns mouse navigation (and so doesn't apply to the keyboard navigation). Please see the image attached and see how the submenu is placed. There is no way to navigate down the main context menu! (well ok, actually there is, but could be quite challenging what should not be the case).

I'd like to propose a little patch that deals with it. The simple solution is to move the submenu a few pixels (e.g. 5) to the left (or right in case of rtl lang).

In fact that's just a couple of keystrokes :)

In file ​http://svn.ckeditor.com/CKEditor/trunk/_source/plugins/floatpanel/plugin.js

change line 255 from

left += ( panelSize.width * ( rtl ? 1 : -1 ) );

to

left += ( ( panelSize.width + 5) * ( rtl ? 1 : -1 ) );

[fredck]

This is not a optimal usable solution. We should mimic what the native applications do: show the sub-panel at the other side of the main one.