Re: Navigating

Jonas Fonseca napsal(a):
> Yan Seiner <[email protected]> wrote Wed, May 02, 2007:
>   
>> I'm trying to make elinks into a front end for our embedded panel.  So 
>> far, I've figured out how to manipulate the form and users can enter and 
>> modify the information on the forms with our interface.
>>
>> I'm having a bit of an issue with navigation, though.
>>
>> Question 1:
>>
>> The form fields are labeled and contain attributes with nav info, eg
>> <INPUT type='text'  class='float' id='F_2' idindex='22'  tabindex='14' 
>> WRAP='true'  NUMTYPE='bearing'  VALUE='125'  SIZE='4'  NAME='F_2'  
>> right='T_2' left='' up='F_1' down='F_3'>
>>
>> So on down arrow I need to navigate to the INPUT field with ID of 
>> 'F_3'.  I've modified the parser code to extract the attributes I need, 
>> but I can't figure out the navigation....
>>
>> How do I navigate 'by force'?  Somehow I need to be able to extract the 
>> information from the INPUT element and use it to navigate.  I've tried 
>> next_link_in_dir from within the forms editor but it seems to have no 
>> effect....
>>
>> What function or combination of functions should I be looking at to:
>>
>> exit edit mode
>> navigate to a given field in the form
>>     
>
> I think it will be enough to search the document->links for the form and then
> jump to the link. Maybe you need to escape the edit/insert mode yourself.
>
> 	struct document *document = doc_view->document;
>         int link;
>
>         for (link = 0; link < document->nlinks; link++) {
>                 struct form_control *fc = get_link_form_control(&document->links[link]);
>
>                 if (fc && fc->form == form
> 		    && CHECK FOR FORM ID) {
>                         jump_to_link_number(ses, doc_view, link);
>                         return;
>                 }
>         }
>   
OK, thanks.
>   
>> Question 2:
>>
>> I need to implement shortcuts so that when a user hits a button, s/he is 
>> taken to a new page.  Right now I have F1 mapped to "HomeURL", F2 to 
>> 'back", and F5 to "HelpURL".  How do I tie these keys to URLs?
>>     
>
> Using building keybindings / actions. This requires adding something to
> src/config/action-*.inc and src/viewer/action.c. Maybe try to look for
> the patch of a new action that was added in the past.
>
>   

Great!  I'll look into that section of the code when I get to work...

One thing that would help developers like me is a diagram of the path 
that a character takes as it moves from the keyboard through elinks....  
(If this is in the docs, I missed it...)

I really like the way the code is structured, and it all makes a lot of 
sense, but it is difficult to trace how keyboard input is handled.

For my application, elinks is a great front end to a complex back end.

Thanks for all the hard work, folks.

--Yan