Add basic theme configuration support

system/src/Grav/Common/Grav.php

@@ -5,7 +5,6 @@ use Grav\Common\Service\StreamsServiceProvider;
 use Grav\Component\DI\Container;
 use Grav\Component\EventDispatcher\Event;
 use Grav\Component\EventDispatcher\EventDispatcher;
-use Grav\Component\Filesystem\ResourceLocator;
 
 /**
  * Grav

system/src/Grav/Common/Plugins.php

@@ -61,6 +61,7 @@ class Plugins extends Iterator
         }
 
         $instance = $this->grav['themes']->load();
+        $instance->configure();
         if ($instance instanceof EventSubscriberInterface) {
             $events->addSubscriber($instance);
         }

system/src/Grav/Common/Theme.php

@@ -1,6 +1,61 @@
 <?php
 namespace Grav\Common;
 
+use Grav\Common\Filesystem\File\Yaml;
+use Grav\Component\Filesystem\ResourceLocator;
+
 class Theme extends Plugin
 {
+    public $name;
+
+    /**
+     * Constructor.
+     *
+     * @param Grav $grav
+     * @param Config $config
+     * @param string $name
+     */
+    public function __construct(Grav $grav, Config $config, $name)
+    {
+        $this->name = $name;
+
+        parent::__construct($grav, $config);
+    }
+
+    public function configure() {
+        $themeConfig = Yaml::instance(THEMES_DIR . "{$this->name}/{$this->name}.yaml")->content();
+
+        $this->config->merge(['themes' => [$this->name => $themeConfig]]);
+
+        /** @var ResourceLocator $locator */
+        $locator = $this->grav['locator'];
+
+        // TODO: move
+        $registered = stream_get_wrappers();
+        $schemes = $this->config->get("themes.{$this->name}.streams.scheme");
+
+        foreach ($schemes as $scheme => $config) {
+            if (isset($config['paths'])) {
+                $locator->addPath($scheme, '', $config['paths']);
+            }
+            if (isset($config['prefixes'])) {
+                foreach ($config['prefixes'] as $prefix => $paths) {
+                    $locator->addPath($scheme, $prefix, $paths);
+                }
+            }
+
+            if (in_array($scheme, $registered)) {
+                stream_wrapper_unregister($scheme);
+            }
+            $type = !empty($config['type']) ? $config['type'] : 'ReadOnlyStream';
+            if ($type[0] != '\\') {
+                $type = '\\Grav\\Component\\Filesystem\\StreamWrapper\\' . $type;
+            }
+
+            if (!stream_wrapper_register($scheme, $type)) {
+                throw new \InvalidArgumentException("Stream '{$type}' could not be initialized.");
+            }
+
+        }
+    }
 }

system/src/Grav/Common/Themes.php

@@ -101,13 +101,13 @@ class Themes
                 $className = '\\Grav\\Theme\\' . ucfirst($name);
 
                 if (class_exists($className)) {
-                    $class = new $className($this->grav, $config);
+                    $class = new $className($this->grav, $config, $name);
                 }
             }
         }
 
         if (empty($class)) {
-            $class = new Theme($this->grav, $config);
+            $class = new Theme($this->grav, $config, $name);
         }
 
         return $class;