MDL-44357 theme_more: New customizable theme

AMOS BEGIN
 CPY [choosereadme,theme_clean],[choosereadme,theme_more]
 CPY [configtitle,theme_clean],[configtitle,theme_more]
 CPY [customcss,theme_clean],[customcss,theme_more]
 CPY [customcssdesc,theme_clean],[customcssdesc,theme_more]
 CPY [footnote,theme_clean],[footnote,theme_more]
 CPY [footnotedesc,theme_clean],[footnotedesc,theme_more]
 CPY [invert,theme_clean],[invert,theme_more]
 CPY [invertdesc,theme_clean],[invertdesc,theme_more]
 CPY [logo,theme_clean],[logo,theme_more]
 CPY [logodesc,theme_clean],[logodesc,theme_more]
 CPY [pluginname,theme_clean],[pluginname,theme_more]
 CPY [region-side-post,theme_clean],[region-side-post,theme_more]
 CPY [region-side-pre,theme_clean],[region-side-pre,theme_more]
AMOS END

theme/more/lib.php

@@ -0,0 +1,108 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Theme More lib.
+ *
+ * @package    theme_more
+ * @copyright  2014 Frédéric Massart
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+/**
+ * Parses CSS before it is cached.
+ *
+ * This function can make alterations and replace patterns within the CSS.
+ *
+ * @param string $css The CSS
+ * @param theme_config $theme The theme config object.
+ * @return string The parsed CSS The parsed CSS.
+ */
+function theme_more_process_css($css, $theme) {
+
+    // Set the background image for the logo.
+    $logo = $theme->setting_file_url('logo', 'logo');
+    $css = theme_more_set_logo($css, $logo);
+
+    // Set custom CSS.
+    if (!empty($theme->settings->customcss)) {
+        $customcss = $theme->settings->customcss;
+    } else {
+        $customcss = null;
+    }
+    $css = theme_more_set_customcss($css, $customcss);
+
+    return $css;
+}
+
+/**
+ * Adds the logo to CSS.
+ *
+ * @param string $css The CSS.
+ * @param string $logo The URL of the logo.
+ * @return string The parsed CSS
+ */
+function theme_more_set_logo($css, $logo) {
+    $tag = '[[setting:logo]]';
+    $replacement = $logo;
+    if (is_null($replacement)) {
+        $replacement = '';
+    }
+
+    $css = str_replace($tag, $replacement, $css);
+
+    return $css;
+}
+
+/**
+ * Serves any files associated with the theme settings.
+ *
+ * @param stdClass $course
+ * @param stdClass $cm
+ * @param context $context
+ * @param string $filearea
+ * @param array $args
+ * @param bool $forcedownload
+ * @param array $options
+ * @return bool
+ */
+function theme_more_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options = array()) {
+    if ($context->contextlevel == CONTEXT_SYSTEM and $filearea === 'logo') {
+        $theme = theme_config::load('more');
+        return $theme->setting_file_serve('logo', $args, $forcedownload, $options);
+    } else {
+        send_file_not_found();
+    }
+}
+
+/**
+ * Adds any custom CSS to the CSS before it is cached.
+ *
+ * @param string $css The original CSS.
+ * @param string $customcss The custom CSS to add.
+ * @return string The CSS which now contains our custom CSS.
+ */
+function theme_more_set_customcss($css, $customcss) {
+    $tag = '[[setting:customcss]]';
+    $replacement = $customcss;
+    if (is_null($replacement)) {
+        $replacement = '';
+    }
+
+    $css = str_replace($tag, $replacement, $css);
+
+    return $css;
+}