MDL-51802 core: new template for quick editing a title

convert editing tag name to use new template

tag/lib.php

@@ -40,3 +40,20 @@ function tag_page_type_list($pagetype, $parentcontext, $currentcontext) {
         'tag-manage'=>get_string('page-tag-manage', 'tag')
     );
 }
+
+/**
+ * Implements callback inplace_editable() allowing to edit values in-place
+ *
+ * @param string $itemtype
+ * @param int $itemid
+ * @param mixed $newvalue
+ * @return \core\output\inplace_editable
+ */
+function core_tag_inplace_editable($itemtype, $itemid, $newvalue) {
+    if ($itemtype === 'tagname') {
+        require_capability('moodle/tag:manage', context_system::instance());
+        $tag = core_tag_tag::get($itemid, '*', MUST_EXIST);
+        $tag->update(array('rawname' => $newvalue));
+        return new \core_tag\output\tagname($tag);
+    }
+}