1 files changed, 69 insertions, 0 deletions
diff --git a/apps/files_sharing/src/services/ExternalShareActions.js b/apps/files_sharing/src/services/ExternalShareActions.js
new file mode 100644
index 00000000000..6ffd7014fe2
--- /dev/null
+++ b/apps/files_sharing/src/services/ExternalShareActions.js
@@ -0,0 +1,69 @@
+/**
+ * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+export default class ExternalShareActions {
+
+	_state
+
+	constructor() {
+		// init empty state
+		this._state = {}
+
+		// init default values
+		this._state.actions = []
+		console.debug('OCA.Sharing.ExternalShareActions initialized')
+	}
+
+	/**
+	 * Get the state
+	 *
+	 * @readonly
+	 * @memberof ExternalLinkActions
+	 * @return {object} the data state
+	 */
+	get state() {
+		return this._state
+	}
+
+	/**
+	 * @typedef ExternalShareActionData
+	 * @property {import('vue').Component} is Vue component to render, for advanced actions the `async onSave` method of the component will be called when saved
+	 */
+
+	/**
+	 * Register a new option/entry for the a given share type
+	 *
+	 * @param {object} action new action component to register
+	 * @param {string} action.id unique action id
+	 * @param {(data: any) => ExternalShareActionData & Record<string, unknown>} action.data data to bind the component to
+	 * @param {Array} action.shareType list of \@nextcloud/sharing.Types.SHARE_XXX to be mounted on
+	 * @param {boolean} action.advanced `true` if the action entry should be rendered within advanced settings
+	 * @param {object} action.handlers list of listeners
+	 * @return {boolean}
+	 */
+	registerAction(action) {
+		// Validate action
+		if (typeof action !== 'object'
+			|| typeof action.id !== 'string'
+			|| typeof action.data !== 'function' // () => {disabled: true}
+			|| !Array.isArray(action.shareType) // [\@nextcloud/sharing.Types.Link, ...]
+			|| typeof action.handlers !== 'object' // {click: () => {}, ...}
+			|| !Object.values(action.handlers).every(handler => typeof handler === 'function')) {
+			console.error('Invalid action provided', action)
+			return false
+		}
+
+		// Check duplicates
+		const hasDuplicate = this._state.actions.findIndex(check => check.id === action.id) > -1
+		if (hasDuplicate) {
+			console.error(`An action with the same id ${action.id} already exists`, action)
+			return false
+		}
+
+		this._state.actions.push(action)
+		return true
+	}
+
+}