Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/sequencer/SEQ_connect.hh

@@ -0,0 +1,63 @@
+/* SPDX-FileCopyrightText: 2024 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+/** \file
+ * \ingroup sequencer
+ */
+
+#include "BLI_vector_set.hh"
+#include "DNA_listBase.h"
+
+namespace blender {
+
+struct Strip;
+struct StripConnection;
+
+namespace seq {
+
+void connections_duplicate(ListBaseT<StripConnection> *connections_dst,
+                           ListBaseT<StripConnection> *connections_src);
+
+/**
+ * Disconnect the strip(s) from any connections with other strips. This function also
+ * frees the allocated memory as necessary. Returns false if any of the strips were not already
+ * connected.
+ */
+bool disconnect(Strip *strip);
+bool disconnect(VectorSet<Strip *> &strip_list);
+
+/**
+ * Ensure that the strip has only bidirectional connections (expected behavior).
+ */
+void cut_one_way_connections(Strip *strip);
+
+/**
+ * Connect strips so that they may be selected together. Any connections the
+ * strips already have will be severed before reconnection.
+ */
+void connect(Strip *strip1, Strip *strip2);
+void connect(VectorSet<Strip *> &strip_list);
+
+/**
+ * Returns a list of strips that the `strip` is connected to.
+ * NOTE: This does not include `strip` itself.
+ * This list is empty if `strip` is not connected.
+ */
+VectorSet<Strip *> connected_strips_get(const Strip *strip);
+
+/**
+ * Check whether a strip has any connections.
+ */
+bool is_strip_connected(const Strip *strip);
+
+/**
+ * Check whether the list of strips are a single connection "group", that is, they are all
+ * connected to each other and there are no outside connections.
+ */
+bool are_strips_connected_together(VectorSet<Strip *> &strip_list);
+
+}  // namespace seq
+}  // namespace blender