Re: CSS position not supported workaround

[Michael Drake]

In article 970f2cef52.iyoj...@rickman.argonet.co.uk,
   John Rickman Iyonix rick...@argonet.co.uk wrote:

 I would like to be able to fix some heading content on a page so that 
 when the page is scrolled the heading stays on the screen.

As you've seen position:fixed is not implemented.  It is treated as
position:absolute.

Originally this was because there was no way to implement it in a way that
would give satisfactory performance e.g. on peoples' RiscPCs.  It forces a
serious penalty on scrolling pages that use it.

Same with background-attachment:fixed.

Now we're less bothered about that, but we aren't likely to implement it
before the layout engine rewrite.

 Is there anyway to do this that would work in NetSurf?
 A JavaScript solution is obviously not on.

Only HTML Frames, but they have their own limitations.

Does your design actually need it?  Usually I detest it when I see it.  :)
The performance penalty can affect e.g. Chrome/Firefox on modern PCs too,
although to a lesser extent.

-- 

Michael Drake (tlsa)  http://www.netsurf-browser.org/

Re: CSS position not supported workaround

[John Rickman Iyonix]

Michael Drake  wrote

 In article 970f2cef52.iyoj...@rickman.argonet.co.uk,
John Rickman Iyonix rick...@argonet.co.uk wrote:

 I would like to be able to fix some heading content on a page so that
 when the page is scrolled the heading stays on the screen.
...
 Is there anyway to do this that would work in NetSurf?
 A JavaScript solution is obviously not on.

 Only HTML Frames, but they have their own limitations.

 Does your design actually need it?  Usually I detest it when I see it.  :)
 The performance penalty can affect e.g. Chrome/Firefox on modern PCs too,
 although to a lesser extent.

In this case, the design really does need it. What I want to keep at 
the top of the window is a lookup table which enables multiple 
interpretations of the content that follows.

You can see what I am trying to do here:-

  http://rickman.orpheusweb.co.uk/john/songs/songsaf.html

If you don't play the guitar it probably won't make a lot of sense, 
but basically it enables a guitarist to play any of the songs in any 
key without use of a capo.

The performance hit on the scroll is acceptable here because once you 
have found the song you want to play you don't have to scroll again 
until you want to change songs.



-- 
John - http://mug.riscos.org/