[TYPO3-hci] Comparison between menu behaviors

[Tapio Markula]

Hi

One important issues concering module menu behavior is to mark current 
active main and sub-module and how to keep menus visible.


Pull-down hover
1) can't show always active sub-module, because sub-menus are normally 
closed
2) if works onmouseover possible to highligh active main and sub-module

onClick tabbed menu

1) can keep open active sub-menu
2) possible to highligh active main and sub-module
3) might cause inconsitent situation - active sub-module is under 
different tab as the last clicked main module
Clicking main module link just marks the last used tab and sub-module 
can't change the layout of the main module.


onmouse-based tabbed menu


1) can keep open active main-module
2) possible to highligh active main and sub-module
3) *never* cause inconsitent situation, where active sub-module is under 
different tab as the last clicked main module. If sub-menu item item has 
been cliked, main module has been switched too and active main and 
sub-module *always* syncronize.

In fact I got full consistent behaviour only for hover mode tabbed menu. 
It has better logic than default left frame and onclick based tabbed 
menu. which both has consistency problems.

It has better logic selectorbox on top because it can show only the 
active sub-module.

At the respect of consitent behavior onmouse-based tabbed menu is the best.
Because main and sub-modules are consistent visible,
the total accessibility is better than using pull-down menus,
which needs always starting from the beginning.