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Package wp-less
Short Description Provides a LESS compiler compatible with wp_enqueue_style() for rapid CSS development in themes and plugins.
License GPL-2.0+
Informations about the package wp-less
Enable LESS CSS in WordPress
LESS is an abstraction layer that adds some very powerful features to CSS. It will speed up your development process and make your life that much easier. Find out more from the links below and then head on back.
The addon allows you to write and edit .less
files directly and
have WordPress do the job of compiling and caching the resulting CSS. It
eliminates the extra step of having to compile the .less
files into CSS yourself
before deploying them.
Installation:
If you are using git to clone the repository, do the following:
git clone git://github.com/sanchothefat/wp-less.git wp-less
If you are downloading the .zip
or .tar
, don't forget to download the lessphp
dependency too and copy it into the vendor/leafo/lessphp
directory.
Then install the lessphp dependency using:
composer install
Alternatively, add "icit/wp-less" as a requirement to your composer.json, and add this git repository e.g.:
{
"repositories": [
{
"type": "git",
"url": "https://github.com/sanchothefat/wp-less.git"
}
],
"require": {
"icit/wp-less": "dev-master"
}
}
Usage:
You can either install the script as a standard plugin or use it as an include within a theme or plugin.
For use with themes add the following lines to your functions.php:
Any registered styles with the .less
suffix will be compiled and the file URL rewritten.
You won't need a link to your main style sheet in header.php
. Just make sure
that wp_head()
is called in the document head.
All the standard LESS features are supported as well as @import
rules anywhere
within the file.
Passing in variables from PHP
You can pass variables into your .less
files using the less_vars
hook or with the
functions defined in the PHP Interface section:
Within your .less
files you can use the variable as if you had declared it in the stylesheet.
For e.g.:
Default variables
There are 2 default variables you can use without worrying about the above code:
@themeurl
is the URL of the current theme directory:
*@lessurl
** is the URL of the enqueued LESS file (this does not change inside imported files):
@lessurl
is useful in those cases where you have .less files inside plugins or
other non theme folder locations.
It is important to use these because you can't use relative paths - the compiled CSS is stored in the uploads folder as it is the only place you can guarantee being able to write to in any given WordPress installation. As a result relative URLs will break.
PHP interface
register_less_function()
allows you to create additional less compiler functions
for use in your stylesheet without having to touch the lessc
class yourself.
unregister_less_function()
works in a similar way but unregisters any compiler
functions passed to it by name.
add_less_var()
makes it easy to create or modify variables passed into the
compiler. Both arguments should be a string, as lessc
will work out the type of
variable it is.
remove_less_var()
is the inverse of add_less_var()
and only requires the
variable name to remove.
Further Reading
Read the LESS.js documentation here.
Read the documentation specific to the PHP parser here.
Contributors
Big massive thanks to those whose contributions and discussion has helped to improve the plugin.
License
The software is licensed under the MIT Licence.