[PATCH] konqueror keyboard link navigation

[Robert Ewald]

Hi,

I made a patch implementing my idea of efficient link navigation in an html 
view. 

It works as follows:

In an HTML view you hit 'd' and a tooltips over each visible link is 
displayed. The tooltip contains a keysequence to access that link. Entering 
the keysequence focusses the link and upon hitting enter the link is followed 
(although that does not work reliably yet).

Implementation details:

Upon hitting 'D' displayLinkNavTooltips() is called. Each Element in the 
HTMLTree is traversed and tested for HREF. If this Element is also visible, 
it is added to the list linkNavElements.

To fill the tooltips the 26 characters in the alphabet are seen as a number, 
with a=0 and z=26. Converting the position of the element in the list to 
base26 yields a keysequence, which is displayed in the tooltip.

linkNavActivated is set to true and on further keypresses, 
dispatchKeyEventHelper fills a search string, which is converted to a decimal 
position in the element list. This Element is then focussed.

Thats what I think I have implemented. At the moment the element is only 
focussed. I would rather have, that the keypresses are enough so no enter is 
needed. Therefore I have to determine the number of characters needed in the 
tooltips. For this task i would need to include "math.h" (or anything 
implementing a log or ln  function). I am reluctant to add a dependency, 
thats why I would like some advice.

Thanks

Robert Ewald
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