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functions.php
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functions.php
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<?php
/**
* @package WordPress Dynamic CSS
* @version 1.0.5
* @author Askupa Software <contact@askupasoftware.com>
* @link https://github.com/askupasoftware/wp-dynamic-css
* @copyright 2016 Askupa Software
*/
if( !function_exists('wp_dynamic_css_enqueue') )
{
/**
* Enqueue a dynamic stylesheet
*
* This will either print the compiled version of the stylesheet to the
* document's <head> section, or load it as an external stylesheet if $print
* is set to false
*
* @param string $handle The stylesheet's name/id
* @param string $path The absolute path to the dynamic CSS file
* @paran boolean $print Whether to print the compiled CSS to the document
* head, or include it as an external CSS file
* @param boolean $minify Whether to minify the CSS output
* @param boolean $cache Whether to store the compiled version of this
* stylesheet in cache to avoid compilation on every page load.
*/
function wp_dynamic_css_enqueue( $handle, $path, $print = true, $minify = false, $cache = false )
{
$dcss = DynamicCSSCompiler::get_instance();
$dcss->register_style( $handle, $path, $print, $minify, $cache );
}
}
if( !function_exists('wp_dynamic_css_set_callback') )
{
/**
* Set the value retrieval callback function
*
* Set a callback function that will be used to get the values of the
* variables when the dynamic CSS file is compiled. The function accepts 1
* parameter which is the name of the variable, without the $ sign
*
* @param string $handle The name of the stylesheet to be associated with this
* callback function
* @param string|array $callback A callback (or "callable" as of PHP 5.4)
* can either be a reference to a function name or method within an
* class/object.
*/
function wp_dynamic_css_set_callback( $handle, $callback )
{
$dcss = DynamicCSSCompiler::get_instance();
$dcss->register_callback( $handle, $callback );
}
}
if( !function_exists('wp_dynamic_css_clear_cache') )
{
/**
* Clear the cached compiled CSS for the given handle.
*
* Registered dynamic stylesheets that have the $cache flag set to true are
* compiled only once and then stored in cache. Subsequesnt requests are
* served statically from cache until wp_dynamic_css_clear_cache() is called
* and clears it, forcing the compiler to recompile the CSS.
*
* @param string $handle The name of the stylesheet to be cleared from cache
*/
function wp_dynamic_css_clear_cache( $handle )
{
$cache = DynamicCSSCache::get_instance();
$cache->clear( $handle );
}
}
if( !function_exists('wp_dynamic_css_register_filter') )
{
/**
* Register a filter function for a given stylesheet handle.
*
* For example, a registered filter named 'myFilter' can be used in a dynamic
* CSS file like so:
*
* <pre>
* body {
* $myVar|myFilter
* }
* </pre>
*
* Filters can also accept arguments:
*
* <pre>
* body {
* $myVar|myFilter('1',2,3.4)
* }
* </pre>
*
* And can be stacked together:
*
* <pre>
* body {
* $myVar|myFilter1|filter2|filter3
* }
* </pre>
*
* @param string $handle The handle of the stylesheet in which this filter
* is to be used.
* @param string $filter_name The name of the filter to be used in the
* dynamic CSS file.
* @param Callable $callback The actual filter function. Accepts the $value
* as an argument. Should return the filtered value.
*/
function wp_dynamic_css_register_filter( $handle, $filter_name, $callback )
{
$dcss = DynamicCSSCompiler::get_instance();
$dcss->register_filter( $handle, $filter_name, $callback );
}
}