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