ref(selection): separate @lexical/selection/index into multiple files (…

…facebook#3145)

packages/lexical-selection/src/constants.ts

@@ -0,0 +1,8 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+export const CSS_TO_STYLES: Map<string, Record<string, string>> = new Map();

packages/lexical-selection/src/grid-selection.ts

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+import type {ICloneSelectionContent} from './lexical-node';
+import type {GridSelection, LexicalNode, NodeKey} from 'lexical';
+
+import {$cloneWithProperties} from './lexical-node';
+
+export function $cloneGridSelectionContent(
+  selection: GridSelection,
+): ICloneSelectionContent {
+  const nodeMap = selection.getNodes().map<[NodeKey, LexicalNode]>((node) => {
+    const nodeKey = node.getKey();
+
+    const clone = $cloneWithProperties<LexicalNode>(node);
+
+    return [nodeKey, clone];
+  });
+
+  return {
+    nodeMap,
+    range: [selection.gridKey],
+  };
+}