1 files changed, 70 insertions, 0 deletions
diff --git a/core/src/OC/plugins.js b/core/src/OC/plugins.js
new file mode 100644
index 00000000000..8212fc0b4ee
--- /dev/null
+++ b/core/src/OC/plugins.js
@@ -0,0 +1,70 @@
+/**
+ * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+export default {
+
+	/**
+	 * @type {Array.<OC.Plugin>}
+	 */
+	_plugins: {},
+
+	/**
+	 * Register plugin
+	 *
+	 * @param {string} targetName app name / class name to hook into
+	 * @param {OC.Plugin} plugin plugin
+	 */
+	register(targetName, plugin) {
+		let plugins = this._plugins[targetName]
+		if (!plugins) {
+			plugins = this._plugins[targetName] = []
+		}
+		plugins.push(plugin)
+	},
+
+	/**
+	 * Returns all plugin registered to the given target
+	 * name / app name / class name.
+	 *
+	 * @param {string} targetName app name / class name to hook into
+	 * @return {Array.<OC.Plugin>} array of plugins
+	 */
+	getPlugins(targetName) {
+		return this._plugins[targetName] || []
+	},
+
+	/**
+	 * Call attach() on all plugins registered to the given target name.
+	 *
+	 * @param {string} targetName app name / class name
+	 * @param {object} targetObject to be extended
+	 * @param {object} [options] options
+	 */
+	attach(targetName, targetObject, options) {
+		const plugins = this.getPlugins(targetName)
+		for (let i = 0; i < plugins.length; i++) {
+			if (plugins[i].attach) {
+				plugins[i].attach(targetObject, options)
+			}
+		}
+	},
+
+	/**
+	 * Call detach() on all plugins registered to the given target name.
+	 *
+	 * @param {string} targetName app name / class name
+	 * @param {object} targetObject to be extended
+	 * @param {object} [options] options
+	 */
+	detach(targetName, targetObject, options) {
+		const plugins = this.getPlugins(targetName)
+		for (let i = 0; i < plugins.length; i++) {
+			if (plugins[i].detach) {
+				plugins[i].detach(targetObject, options)
+			}
+		}
+	},
+
+}