X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/7e6f6af46386e429be4b0ffbb388dad7d2267325..refs/pull/5676/head:/resources/js/wysiwyg/utils/nodes.ts

diff --git a/resources/js/wysiwyg/utils/nodes.ts b/resources/js/wysiwyg/utils/nodes.ts
index b5cc78955..116a3f4e5 100644
--- a/resources/js/wysiwyg/utils/nodes.ts
+++ b/resources/js/wysiwyg/utils/nodes.ts
@@ -6,7 +6,7 @@ import {
     $isTextNode,
     ElementNode,
     LexicalEditor,
-    LexicalNode
+    LexicalNode, RangeSelection
 } from "lexical";
 import {LexicalNodeMatcher} from "../nodes";
 import {$generateNodesFromDOM} from "@lexical/html";
@@ -94,6 +94,46 @@ export function $getNearestNodeBlockParent(node: LexicalNode): LexicalNode|null
     return $findMatchingParent(node, isBlockNode);
 }
 
+export function $sortNodes(nodes: LexicalNode[]): LexicalNode[] {
+    const idChain: string[] = [];
+    const addIds = (n: ElementNode) => {
+        for (const child of n.getChildren()) {
+            idChain.push(child.getKey())
+            if ($isElementNode(child)) {
+                addIds(child)
+            }
+        }
+    };
+
+    const root = $getRoot();
+    addIds(root);
+
+    const sorted = Array.from(nodes);
+    sorted.sort((a, b) => {
+        const aIndex = idChain.indexOf(a.getKey());
+        const bIndex = idChain.indexOf(b.getKey());
+        return aIndex - bIndex;
+    });
+
+    return sorted;
+}
+
+export function $selectOrCreateAdjacent(node: LexicalNode, after: boolean): RangeSelection {
+    const nearestBlock = $getNearestNodeBlockParent(node) || node;
+    let target = after ? nearestBlock.getNextSibling() : nearestBlock.getPreviousSibling()
+
+    if (!target) {
+        target = $createParagraphNode();
+        if (after) {
+            nearestBlock.insertAfter(target)
+        } else {
+            nearestBlock.insertBefore(target);
+        }
+    }
+
+    return after ? target.selectStart() : target.selectEnd();
+}
+
 export function nodeHasAlignment(node: object): node is NodeHasAlignment {
     return '__alignment' in node;
 }