added drag and drop for new records via calendar (#1962)

src/Calendar/DragAndDropSource.php

@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Calendar;
+
+interface DragAndDropSource
+{
+    /**
+     * @return string
+     */
+    public function getTitle(): string;
+
+    /**
+     * @return string
+     */
+    public function getRoute(): string;
+
+    /**
+     * @return array<string, string>
+     */
+    public function getRouteParams(): array;
+
+    /**
+     * @return array<string, string>
+     */
+    public function getRouteReplacer(): array;
+
+    /**
+     * @return string
+     */
+    public function getMethod(): string;
+
+    /**
+     * @return DragAndDropEntry[]
+     */
+    public function getEntries(): array;
+
+    /**
+     * If you want to customize the item rendering, you have to return a path to your include here.
+     *
+     * @return string|null
+     */
+    public function getBlockInclude(): ?string;
+}