Extension:Highlight Links in Category
![]() Release status: stable |
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Implementation | User interface, MyWiki |
Description | Adds a CSS class to links pointing to members of a category |
Author(s) | Brent Laabs (BrentLaabstalk) |
Latest version | 0.9.0 (2021-05-29) |
MediaWiki | 1.25+ |
Database changes | No |
License | MIT License |
Download | GitHub: Note: readme repository |
Example | https://allthetropes.org/ |
$wgHighlightLinksInCategory |
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Highlight Links in Category is an extension that adds a CSS class to links pointing to members of a category.
For reporting an issue or a bug, please use Miraheze Phabricator.
Installation
edit- Download and move the extracted
HighlightLinksInCategory
folder to yourextensions/
directory.
Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/HighlightLinksInCategory - Add the following code at the bottom of your LocalSettings.php file:
wfLoadExtension( 'HighlightLinksInCategory' );
- Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.
Configuration parameters
edit- $wgHighlightLinksInCategory
- This global is an array that configures which categories get an added CSS class. The keys are the Category names, which must include underscores instead of spaces. Do not include the Category: namespace. The value for each key is the CSS class you would like to add to that category. For example:
$wgHighlightLinksInCategory = array(
"Disambiguation_pages" => 'disambig',
"Templates" => 'templates',
);
If you want add more than one class, separate the class names with spaces, like
$wgHighlightLinksInCategory = array( "My_Cat" => "class1 class2 class3" );
You can add as many of these as you want, but from a UX perspective it's probably not awesome to add 500 different style links.
If $wgHighlightLinksInCategory is not set or empty, this extension will do nothing.
If you're running a wiki farm and need to turn it off on some wikis, set $wgHighlightLinksInCategory = null
; using false
could lead to incorrect behavior.
Styling
editSimply add the styles you need for these links to MediaWiki:Common.css on your wiki. For example:
a.disambig {
color: rebeccapurple
}
a.templates {
font-weight: bold;
background-color: #efe;
}
If you want one category to override another, you'll have to specify it with CSS.
a.templates.disambig {
font-weight: normal;
background-color: transparent;
color: rebeccapurple;
}
Or alternatively, you could have defined the original a.templates
rule as a.templates:not(.disambig)
instead.
There's also the link icon approach:
a.superlink {
background-image: url(super.png);
padding-left: 16px;
}
User Toggles
editAn easy way to set up toggling this highlighting on or off is to make a Gadget with CSS in it. Yes, this is a personalization extension that outsources the personalization part to other extensions; I can still sleep at night.
How this works
editRight after MediaWiki determines which linked pages exist (to make redlinks), it runs the GetLinkColours
hook (see LinkHolderArray.php).
As we have a list of all of the page ids which are linked on that page, we can run one database query to see which of these links are in the set of categories we want to highlight.
Because the query only happens on an index of the categorylinks
table, it's reasonably fast.
Then CSS classes are assigned based on the result, using the configuration values the user sets in $wgHighlightLinksInCategory
.
Explaining how CSS works is outside the scope of this document.
Known issues
edit- CSS styles are not added in Flow, because it doesn't appear to call the GetLinkColors hook there.
See also
edit- Category:LinkEnd extensions - which customize links in other ways
This extension is included in the following wiki farms/hosts and/or packages: This is not an authoritative list. Some wiki farms/hosts and/or packages may contain this extension even if they are not listed here. Always check with your wiki farms/hosts or bundle to confirm. |
This extension is maintained by Miraheze. Some Miraheze extensions are very Miraheze-specific and you may encounter issues you don't see on Miraheze. To report a bug or request a configuration change, please do so on the Miraheze Issue Tracker and not on Wikimedia Phabricator. |