104 lines
4.9 KiB
Markdown
104 lines
4.9 KiB
Markdown
Hi Joey,
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What do you think about CSS classes for links to display link with icon?
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You probably know that there are wikis with that feature, for example
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Moin Moin.
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Here is a piece of `common.css` file grabbed from <http://wiki.openwrt.org>
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site which is powered by Moin Moin wiki:
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a.www:before {content: url(../img/moin-www.png); margin: 0 0.2em;}
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a.http:before {content: url(../img/moin-www.png); margin: 0 0.2em;}
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a.https:before {content: url(../img/moin-www.png); margin: 0 0.2em;}
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a.file:before {content: url(../img/moin-ftp.png); margin: 0 0.2em;}
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a.ftp:before {content: url(../img/moin-ftp.png); margin: 0 0.2em;}
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a.nntp:before {content: url(../img/moin-news.png); margin: 0 0.2em;}
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a.news:before {content: url(../img/moin-news.png); margin: 0 0.2em;}
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a.telnet:before {content: url(../img/moin-telnet.png); margin: 0 0.2em;}
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a.irc:before {content: url(../img/moin-telnet.png); margin: 0 0.2em;}
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a.mailto:before {content: url(../img/moin-email.png); margin: 0 0.2em;}
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a.attachment:before {content: url(../img/moin-attach.png); margin: 0 0.2em;}
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a.badinterwiki:before {content: url(../img/moin-inter.png); margin: 0 0.2em;}
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a.interwiki:before {content: url(../img/moin-inter.png); margin: 0 0.2em;}
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You can see that they use a lot of CSS classes for links, but only one CSS class
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for external links is enough for me :) Please look at my example:
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\[[Foo]] -> <a href="http://www.mywiki.org/foo.html">Foo</a>
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\[[Bar|foo/bar]] -> <a href="http://www.mywiki.org/foo/bar.html">Bar</a>
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<http://www.gnu.org/> -> <a class="external" href="http://www.gnu.org/">http://www.gnu.org/</a>
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[GNU](http://www.gnu.org/) -> <a class="external" href="http://www.gnu.org/">GNU</a>
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[RMS](mailto:rms@gnu.org) -> <a href="mailto:rms@gnu.org">RMS</a>
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My best regards,
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--[[Paweł|ptecza]]
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> If you did not already know, you can achieve similar results using CSS3
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> selectors. Eg: `a[href="http://www.foobar.com/"] { foobar: css }` or
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> `a[title~="Mail"] {text-decoration: none; }`. See
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> <http://www.w3.org/TR/2001/CR-css3-selectors-20011113/> for a complete list.
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>> Hi Charles,
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>>
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>> Thanks for the hint! I don't know CSS3 yet :) What modern and popular
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>> WWW browsers do support it now?
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>>
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>>> Safari supports it. Firefoz&Co support most of it. IE6 did not, but IE7
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>>> supports a fair part of CSS3, ans is said to support selectors.
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>>>
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>>> Example on how to use selectors here: http://www.kryogenix.org/days/2002/08/30/external
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>>>
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>>> I also think this should be in an external plugin, not in ikiwiki.
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>>>
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I find CSS3 support still spotty... Here are some notes on how to do this in IkiWiki with jQuery: <http://iki.u32.net/setup/External_Links> --[[sabr]]
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> If you need to achieve this in IkiWiki itself, I imagine you could create a
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> plugin which runs in the `format` phase of rendering and search/replaces
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> specific link patterns. This should be a fairly simple exercise in regular
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> expressions.
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>
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> --CharlesMauch
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>> I've never written plugin for ikiwiki, but I can try if it's simple job :)
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>>
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>> --[[Paweł|ptecza]]
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> I wouldn't mind adding a _single_ css class to ikiwiki links, but it
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> would have to be a class added to all internal, not all external, links.
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> Reason is that there are many ways for external links to get into an
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> ikiwiki page, including being entered as raw html. The only time ikiwiki
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> controls a link is when an internal link is added using a WikiLink.
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>
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> (Note that tags get their own special
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> [[rel_attribute|rel_attribute_for_links]] now that CSS can use.)
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>
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> --[[Joey]]
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>> I had a little look at this, last weekend. I added a class definition to
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>> the `htmllink` call in `linkify` in `link.pm`. It works pretty well, but
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>> I'd also need to adjust other `htmllink` calls (map, inline, etc.). I found
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>> other methods (CSS3 selectors, etc.) to be unreliable.
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>>
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>> Would you potentially accept a patch that added `class="internal"` to
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>> various `htmllink` calls in ikiwiki?
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>>
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>> How configurable do you think this behaviour should be? I'm considering a
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>> config switch to enable or disable this behaviour, or possibly a
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>> configurable list of class names to append for internal links (defaulting
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>> to an empty list for backwards compatibility)>
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>>
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>> As an alternative to patching the uses of `htmllink`, what do you think
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>> about patching `htmllink` itself? Are there circumstances where it might be
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>> used to generate a non-internal link? -- [[Jon]]
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>>> I think that the minimum configurability to get something that
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>>> can be used by CSS to style the links however the end user wants
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>>> is the best thing to shoot for. Ideally, no configurability. And
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>>> a tip or something documenting how to use the classes in your CSS
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>>> to style links so that eg, external links have a warning icon.
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>>>
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>>> `htmllink` can never be used to generate an external link. So,
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>>> patching it seems the best approach. --[[Joey]]
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