Backend work to provide NC whats New info to users

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

2 files changed, 86 insertions, 4 deletions

diff --git a/lib/public/L10N/IFactory.php b/lib/public/L10N/IFactory.php
index 9c006073200..1bc231e4e2e 100644
--- a/lib/public/L10N/IFactory.php
+++ b/lib/public/L10N/IFactory.php
@@ -21,6 +21,8 @@
  */
 namespace OCP\L10N;
 
+use OCP\IUser;
+
 /**
  * @since 8.2.0
  */
@@ -93,10 +95,16 @@ interface IFactory {
 	/**
 	 * iterate through language settings (if provided) in this order:
 	 * 1. returns the forced language or:
-	 * 2. returns the user language or:
-	 * 3. returns the system default language or:
-	 * 4+∞. returns 'en'
+	 * 2. if applicable, the trunk of 1 (e.g. "fu" instead of "fu_BAR"
+	 * 3. returns the user language or:
+	 * 4. if applicable, the trunk of 3
+	 * 5. returns the system default language or:
+	 * 6. if applicable, the trunk of 5
+	 * 7+∞. returns 'en'
+	 *
+	 * Hint: in most cases findLanguage() suits you fine
+	 *
 	 * @since 14.0.0
 	 */
-	public function iterateLanguage(bool $reset = false): string;
+	public function getLanguageIterator(IUser $user = null): ILanguageIterator;
 }
diff --git a/lib/public/L10N/ILanguageIterator.php b/lib/public/L10N/ILanguageIterator.php
new file mode 100644
index 00000000000..ef923dfd249
--- /dev/null
+++ b/lib/public/L10N/ILanguageIterator.php
@@ -0,0 +1,74 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\L10N;
+
+/**
+ * Interface ILanguageIterator
+ *
+ * iterator across language settings (if provided) in this order:
+ * 1. returns the forced language or:
+ * 2. if applicable, the trunk of 1 (e.g. "fu" instead of "fu_BAR"
+ * 3. returns the user language or:
+ * 4. if applicable, the trunk of 3
+ * 5. returns the system default language or:
+ * 6. if applicable, the trunk of 5
+ * 7+∞. returns 'en'
+ *
+ * if settings are not present or truncating is not applicable, the iterator
+ * skips to the next valid item itself
+ *
+ * @package OCP\L10N
+ *
+ * @since 14.0.0
+ */
+interface ILanguageIterator extends \Iterator {
+
+	/**
+	 * Return the current element
+	 *
+	 * @since 14.0.0
+	 */
+	public function current(): string;
+
+	/**
+	 * Move forward to next element
+	 *
+	 * @since 14.0.0
+	 */
+	public function next();
+
+	/**
+	 * Return the key of the current element
+	 *
+	 * @since 14.0.0
+	 */
+	public function key():int;
+
+	/**
+	 * Checks if current position is valid
+	 *
+	 * @since 14.0.0
+	 */
+	public function valid():bool;
+}