Add upstream plugins

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/all-in-one-event-calendar/lib/theme/file/less.php

@@ -0,0 +1,63 @@
+<?php
+
+/**
+ * Handle finding CSS/LESS files.
+ *
+ * @author     Time.ly Network Inc.
+ * @since      2.0
+ * @instantiator new
+ * @package    AI1EC
+ * @subpackage AI1EC.Theme.File
+ */
+class Ai1ec_File_Less extends Ai1ec_File_Abstract {
+
+    /**
+     * @var string The default CSS folder.
+     */
+    const THEME_CSS_FOLDER = 'css';
+
+    /**
+     * @var string The default less folder.
+     */
+    const THEME_LESS_FOLDER = 'less';
+
+    /**
+     * Returns the name of the file.
+     * @return string
+     */
+    public function get_name() {
+        return $this->_name;
+    }
+
+    /* (non-PHPdoc)
+     * @see Ai1ec_File_Abstract::process_file()
+     */
+    public function process_file() {
+        // 1. Look for a CSS file in the directory of the current theme.
+        // 2. Look for a LESS version in the directory of the current theme.
+        // 3. Look for a LESS file into the default theme folder.
+        $name = $this->_name;
+        $css_file  = $name . '.css';
+        $less_file = $name . '.less';
+        $files_to_check = array();
+        foreach ( $this->_paths as $path ) {
+            $files_to_check[] =
+                $path . self::THEME_LESS_FOLDER . DIRECTORY_SEPARATOR . $less_file;
+            $files_to_check[] =
+                $path . self::THEME_CSS_FOLDER . DIRECTORY_SEPARATOR . $css_file;
+            if ( '..' . DIRECTORY_SEPARATOR . 'style' === $name ) {
+                $files_to_check[] =
+                    $path . self::THEME_LESS_FOLDER . DIRECTORY_SEPARATOR . $css_file;
+            }
+        }
+
+        foreach ( $files_to_check as $file_to_check ) {
+            if ( file_exists( $file_to_check ) ) {
+                $this->_content = file_get_contents( $file_to_check );
+                $this->_name    = $file_to_check;
+                return true;
+            }
+        }
+        return false;
+    }
+}