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T5 Fresh Editor Stylesheets
<?php # -*- coding: utf-8 -*-
/**
* Plugin Name: T5 Fresh Editor Stylesheets
* Description: Enforces fresh editor stylesheets per version parameter.
* Version: 2012.08.09
* Author: Thomas Scholz
* Plugin URI: http://toscho.de/?p=1965
* Author URI: http://toscho.de
* License: MIT
* License URI: http://www.opensource.org/licenses/mit-license.php
*/
if ( ! function_exists( 't5_fresh_editor_style' ) )
{
add_filter( 'mce_css', 't5_fresh_editor_style' );
/**
* Adds a parameter of the last modified time to all editor stylesheets.
*
* Modified copy of _WP_Editors::editor_settings()
*
* @wp-hook mce_css
* @param string $css Comma separated stylesheet URIs
* @return string
*/
function t5_fresh_editor_style( $css )
{
global $editor_styles;
if ( empty ( $css ) or empty ( $editor_styles ) )
{
return $css;
}
$mce_css = array();
// Load parent theme styles first, so the child theme can overwrite it.
if ( is_child_theme() )
{
t5_refill_editor_styles(
$mce_css,
get_template_directory(),
get_template_directory_uri()
);
}
t5_refill_editor_styles(
$mce_css,
get_stylesheet_directory(),
get_stylesheet_directory_uri()
);
return implode( ',', $mce_css );
}
/**
* Add version parameter to each stylesheet uri.
*
* @param array $mce_css Passed by reference.
* @param string $dir
* @param string $uri
* @return void
*/
function t5_refill_editor_styles( &$mce_css, $dir, $uri )
{
global $editor_styles;
foreach ( $editor_styles as $file )
{
if ( ! $file or ! file_exists( "$dir/$file" ) )
{
continue;
}
$mce_css[] = add_query_arg(
'version',
filemtime( "$dir/$file" ),
"$uri/$file"
);
}
}
}
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