1 files changed, 95 insertions, 0 deletions
diff --git a/vendor/ipl/stdlib/src/Plugins.php b/vendor/ipl/stdlib/src/Plugins.php
new file mode 100644
index 0000000..a5dbb77
--- /dev/null
+++ b/vendor/ipl/stdlib/src/Plugins.php
@@ -0,0 +1,95 @@
+<?php
+
+namespace ipl\Stdlib;
+
+use ipl\Stdlib\Contract\PluginLoader;
+use ipl\Stdlib\Loader\AutoloadingPluginLoader;
+
+trait Plugins
+{
+    /** @var array Registered plugin loaders by type */
+    protected $pluginLoaders = [];
+
+    /**
+     * Factory for plugin loaders
+     *
+     * @param PluginLoader|string $loaderOrNamespace
+     * @param string              $postfix
+     *
+     * @return PluginLoader
+     */
+    public static function wantPluginLoader($loaderOrNamespace, $postfix = '')
+    {
+        if ($loaderOrNamespace instanceof PluginLoader) {
+            $loader = $loaderOrNamespace;
+        } else {
+            $loader = new AutoloadingPluginLoader($loaderOrNamespace, $postfix);
+        }
+
+        return $loader;
+    }
+
+    /**
+     * Get whether a plugin loader for the given type exists
+     *
+     * @param string $type
+     *
+     * @return bool
+     */
+    public function hasPluginLoader($type)
+    {
+        return isset($this->pluginLoaders[$type]);
+    }
+
+    /**
+     * Add a plugin loader for the given type
+     *
+     * @param string              $type
+     * @param PluginLoader|string $loaderOrNamespace
+     * @param string              $postfix
+     *
+     * @return $this
+     */
+    public function addPluginLoader($type, $loaderOrNamespace, $postfix = '')
+    {
+        $loader = static::wantPluginLoader($loaderOrNamespace, $postfix);
+
+        if (! isset($this->pluginLoaders[$type])) {
+            $this->pluginLoaders[$type] = [];
+        }
+
+        array_unshift($this->pluginLoaders[$type], $loader);
+
+        return $this;
+    }
+
+    /**
+     * Load the class file of the given plugin
+     *
+     * @param string $type
+     * @param string $name
+     *
+     * @return string|false
+     */
+    public function loadPlugin($type, $name)
+    {
+        if ($this->hasPluginLoader($type)) {
+            /** @var PluginLoader $loader */
+            foreach ($this->pluginLoaders[$type] as $loader) {
+                $class = $loader->load($name);
+                if ($class) {
+                    return $class;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    protected function addDefaultPluginLoader($type, $loaderOrNamespace, $postfix)
+    {
+        $this->pluginLoaders[$type][] = static::wantPluginLoader($loaderOrNamespace, $postfix);
+
+        return $this;
+    }
+}