[Greasemonkey] Colour-coding of visited links

[Edward Hibbert]

I did some digging and tweaked the script-compiler.js file to add a
method to allow me to do this:

  var historyService =
Components.classes["@mozilla.org/browser/global-history;1"]
 
.getService(Components.interfaces.nsIGlobalHistory);
 
sandbox.HS_isVisited=freecycleedinburgh_gmCompiler.hitch(historyService,
"isVisited"); 

This seems to do the trick nicely.

Edward.

-----Original Message-----
From: greasemonkey-bounces at mozdev.org
[mailto:greasemonkey-bounces at mozdev.org] On Behalf Of esquifit
Sent: 04 October 2006 14:09
To: greasemonkey at mozdev.org
Subject: Re: [Greasemonkey] Colour-coding of visited links

If I understand correctly, the problem is here to *determine* whether a
given link has been clicked on or not.  As far as I know, there is no
direct API for this in javascript, excepting the (admittedly
deficient) method I've suggested above.

2006/10/4, Henrik Nyh <henrik at nyh.se>:
> esquifit wrote:
> > You can compare the computed style[1] of a link against one you are 
> > sure it has not been visited, for example a hidden dummy link added 
> > by your script.
> >
> > [1] http://developer.mozilla.org/en/docs/DOM:window.getComputedStyle
>
> A simpler solution would be to set the color-coded links using CSS 
> (with e.g. http://greasemonkey.mozdev.org/authoring.html#GM_addStyle).
>
> You'd probably want to use :visited and friends
> (http://www.w3schools.com/css/css_pseudo_classes.asp) and possibly 
> !important
(http://www.w3.org/TR/REC-CSS2/cascade.html#important-rules).
>
> --
> Henrik Nyh
> http://henrik.nyh.se
>
> >
> > 2006/10/4, Edward Hibbert <Edward.Hibbert at dataconnection.com>:
> >> I have a script which colour-codes links.  This is interfering with

> >> the native colour-coding of a link based on whether you've visited 
> >> it before
> >> - the native colour-coding is overwritten by mine.
> >>
> >> Is there any way for me to tell inside a script whether the link 
> >> has been visited, so that I can modify my colour-coding
accordingly?
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